A corrosion-resistant cable and a winding trial device and method for manufacturing the cable

Abstract

The present invention relates to the field of cable winding technology, and more specifically to a corrosion-resistant cable and a winding test device and method for manufacturing the cable, comprising a machine body and a winding machine, wherein the machine body is provided with a winding roller, and the winding machine can be guided and moved along the length direction of the machine body, and a rotatable fixed shaft is provided on the winding machine, and a cylindrical core barrel is assembled on the fixed shaft and can wind the cable on the winding roller around the core barrel. The present invention provides a compression sleeve attached to the outer end of the cable at the upper end of the cable when the core barrel rotates for winding, and uses the compression sleeve to apply a thrust to the side end of the nearest wire turn and to limit the upper end of the wire turn, thereby preventing the wire turn from bending under the action of its own elastic force or from being too far away from the adjacent wire turn, resulting in the subsequent wire turns being arranged less tightly, affecting the transportation and subsequent use of the rolled cable.

Description

Technical Field

[0001] The present invention relates to the technical field of cable winding, in particular to a corrosion-resistant cable and a winding trial device and method for manufacturing the cable. Background Art

[0002] A cable is a device used to transmit electricity or electrical signals. Most of the cables are covered with an outer rubber sheath on the outside of the cable core. When manufacturing finished cables, the cables need to be sub-packaged and wound around the outside of different core tubes before transportation.

[0003] The prior art discloses a Chinese patent with the announcement number CN111908255B, and the patent name is a cable intelligent winding device. Specifically, it discloses a fixed outer frame, a winding wooden drum provided on the fixed outer frame, a wooden drum fixing and driving device, a wire taking and feeding module, a wire taking module and an identification module; the fixed outer frame is composed of a bottom plate, a back plate and a top plate, and is a technical solution of an open frame structure. In the above scheme, the wire taking and feeding module grabs the cable head and moves it to the wire taking module. The wire taking module fixes one end of the cable by moving the cable head and squeezing it. Then, the rotating module and the wire taking and feeding module move together to wind the cable around the drum shaft. This cable intelligent winding device is not only strictly controlled and has a high level of automation, but also simple to operate and has high processing efficiency.

[0004] However, when the cable is wound, the cable sheath itself has a certain elasticity, or it is used for cables with an elastic filling layer inside. If the traction force of the cable is not increased during winding, the turns will not be arranged tightly enough and will easily become loose, affecting the transportation and movement of the rolled cable. Excessive traction will cause the cable sheath to deform and affect the subsequent performance of the cable.

[0005] Therefore, a corrosion-resistant cable and a bending trial device and method for manufacturing the cable are proposed to solve the above-mentioned problems. Summary of the Invention

[0006] Technical problems solved

[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides a corrosion-resistant cable and a winding trial device and method for manufacturing the cable, which can effectively solve the problem of insufficiently tight arrangement of wire turns when winding the cable in the prior art.

[0008] Technical Solution

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] The present invention provides a corrosion-resistant cable, which comprises an inner core, an insulating layer and a sheath from the inside to the outside. The inner core is arranged in the sheath and is provided with a plurality of them. The insulating layer is made of insulating colloid material, and the plurality of inner cores are inserted in the insulating layer. The sheath is made of plastic material and is tightly attached to the outside of the insulating layer.

[0011] The present invention further provides a fully automatic winding device for manufacturing the cable, comprising a machine body and a winding machine, wherein the machine body is provided with a winding roller, and the winding machine can be guided and moved along the length direction of the machine body, and a rotatable fixed shaft is provided on the winding machine, and a cylindrical core barrel is assembled on the fixed shaft and the cable on the winding roller can be wound around the core barrel.

[0012] Among them, a pressing sleeve is also provided on the winding machine, which can be guided and moved in the vertical direction of the turns outside the core barrel. The pressing sleeve is arranged parallel to the core barrel and can rest against the outside of the adjacent turns, and its end facing the turns is arc-shaped.

[0013] Furthermore, the winding machine includes a sliding frame and a telescopic cylinder, the sliding frame is guided and slid along the length direction of the machine body, the telescopic cylinder is movably installed at the front end of the sliding frame, and can be guided and slid along the width direction of the machine body, and the fixed shaft is installed at the end of the telescopic cylinder away from the sliding frame, wherein a slide is arranged on the machine body along the length direction of the machine body, and the slide is inclined toward the end of the telescopic cylinder, and a ball is installed at the end of the telescopic cylinder facing the slide, and the ball always rolls on the slide.

[0014] Furthermore, the winding machine includes a fixed ring, which is concentrically sleeved on the outside of the telescopic cylinder. The pressing sleeve can slide radially toward the fixed ring at one end of the telescopic cylinder and rest against the core cylinder, wherein the pressing sleeve can intermittently telescope toward the end away from the core cylinder.

[0015] Furthermore, a sliding opening is provided on the fixed ring, and the sliding opening is set to pass through from top to bottom. The pressing sleeve includes a sliding sleeve, a sliding rod and a butt head. The sliding sleeve is rectangular and slides up and down in the sliding opening. The sliding rod slides elastically on the lower end of the sliding sleeve. The butt head is in an arc-shaped block as a whole and is provided at one end of the sliding rod facing the core barrel, and the end of the butt head facing the wire turn is an arc surface.

[0016] Furthermore, two protrusions are vertically distributed at one end of the sliding sleeve, and the two protrusions are arranged radially along the fixed ring. A limit plate is installed on one side of the core barrel, and the limit plate is provided with a guide block that matches the two protrusions respectively at one end facing the protrusion. The two guide blocks are staggered, and each guide block has an arc surface at one end facing the adjacent protrusion, and the arc surfaces on the two guide blocks face opposite directions.

[0017] Furthermore, the machine body also includes a pre-winding roller, which includes a main roller and an auxiliary roller distributed in parallel above and below. The main roller and the auxiliary roller are distributed in parallel between the winding roller and the core drum. The cable located between the winding roller and the core drum is wound from the winding roller in a clockwise direction, over the upper part of the main roller and toward the lower end of the auxiliary roller, wherein the diameter of the main roller is adjustable.

[0018] Furthermore, the main roller includes a rotating shaft and an extension plate, the middle part of the rotating shaft is hollow, and the extension plate is provided with several pieces and distributed circumferentially on the outside of the rotating shaft. The outer end of each extension plate is an arc surface and is concentric with the rotating shaft. Each extension plate can elastically slide in the radial direction of the rotating shaft, and the end facing the axial direction of the rotating shaft is an inclined surface. A push rod is inserted in the rotating shaft, and the side of the push rod facing the inclined surface of the lower end of the extension plate is in the shape of a cone.

[0019] Furthermore, a rotatable screw sleeve is provided on the rotating shaft, and the screw sleeve is matched with the thread of the rod.

[0020] This solution also provides a method for winding a corrosion-resistant cable, which is applied to the above-mentioned trial winding equipment for manufacturing cables, comprising the following steps:

[0021] Step 1: Wind the cable on the winding roller around the main roller, auxiliary roller and core drum in sequence, and keep the cable tight between the core drum and the winding roller;

[0022] Step 2: Adjust the position of the winding machine on the machine body to ensure that the arc end of the pressing sleeve can press tightly against the wire turns on the core barrel;

[0023] Step 3: Drive the core barrel to rotate and rotate the guide on the winding roller to wind. After completing the winding of a single turn, the pressing sleeve will temporarily be removed from the turn. When the next turn begins to be wound, it will be pressed against the turn again. When the entire winding is completed, the pressing sleeve will no longer be pressed against the turn. At this time, the core barrel will be removed and the winding of the next core barrel will be carried out.

[0024] Beneficial effects

[0025] Compared with the known public technologies, the technical solution provided by the present invention has the following beneficial effects:

[0026] The present invention provides a compression sleeve on the upper end of the cable and affixes to the outer end of the cable when the core drum rotates for winding. The compression sleeve applies a thrust to the side end of the nearest wire turn and limits the upper end of the wire turn, thereby preventing the wire turn from bending under its own elastic force or from being too far away from adjacent wire turns, which would result in insufficiently tight arrangement of subsequent wire turns. The wound cable coils are arranged tightly and are not prone to loosening.

[0027] The cable between the pre-winding roller and the winding roller can be quickly tightened by the main roller with adjustable diameter to achieve fast operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0029] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention;

[0030] Figure 2 This is a bird's-eye view schematic diagram of the overall structure in an embodiment of the present invention;

[0031] Figure 3 Schematic diagram of the exploded structure of the winding machine in an embodiment of the present invention;

[0032] Figure 4 Schematic diagram of the moving structure of the winding machine in an embodiment of the present invention;

[0033] Figure 5 This is a schematic diagram of a partial cross-sectional structure of a press sleeve in an embodiment of the present invention;

[0034] Figure 6 In the embodiment of the present invention Figure 5 Schematic diagram of the structure at A in the middle;

[0035] Figure 7 This is a schematic diagram of the exploded structure of the main roller in an embodiment of the present invention;

[0036] Figure 8 This is a schematic diagram of the side cross-sectional structure of the main roller in an embodiment of the present invention;

[0037] Figure 9 Schematic diagram of the limiting plate structure in an embodiment of the present invention;

[0038] Figure 10 This is a schematic diagram of the connection structure of the fixing ring in an embodiment of the present invention;

[0039] Figure 11 This is a schematic diagram of the exploded structure of the compression sleeve in an embodiment of the present invention;

[0040] Figure 12 Schematic diagram of a partial cross-sectional structure of a cable in an embodiment of the present invention.

[0041] The numbers in the figure represent: 1. Machine body; 11. Winding roller; 12. Limiting plate; 121. Guide block; 13. Cable rod; 14. Slide; 2. Winding machine; 21. Slide frame; 22. Telescopic cylinder; 221. Rolling ball; 23. Fixed shaft; 24. Fixed ring; 241. Slide mouth; 3. Press sleeve; 31. Slide sleeve; 311. Protrusion; 312. Rectangular hole; 32. Slide rod; 33. Butt; 4. Pre-winding roller; 41. Main roller; 411. Rotating shaft; 412. Extension plate; 413. Butt rod; 414. Screw sleeve; 42. Auxiliary roller; 51. Inner core; 511. Anti-corrosion coating; 52. Insulation layer; 53. Sheath. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described 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.

[0043] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention in specific circumstances.

[0044] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0045] In the description of this embodiment, the terms "upper," "lower," "left," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meanings.

[0046] The present invention will be further described below with reference to the embodiments.

[0047] Example

[0048] During the processing of the cable, the cable needs to be wound on a core barrel. Depending on the different usage environments, the size of the core barrel is also different. The cross-section of the traditional core barrel is I-shaped. The cable is wound in the middle of the core barrel for subcontracting and transportation. In the process of winding the cable, the density of the turns in the winding and the tightness of the core barrel are very high. Once the adjacent turns are not arranged closely enough, or the core barrel is not wrapped tightly enough, the cable can easily loosen and bounce off the core barrel. Blindly increasing the pulling force to achieve tight cable winding will easily cause the cable sheath to deform.

[0049] In addition, in some coil winding tooling, it is necessary to increase the distance between the core barrel and the cable reel to ensure that there is enough extrusion force to fix the turns tightly enough on the outer end of the core barrel when the core barrel rotates, and at the same time, the winding of the turns is controlled by controlling the lateral displacement of the core barrel. However, there are two problems in the process. The first is that the length of the reel used to place the cable is too different from the core barrel. As a result, the cable still has a certain elastic memory during the traction process, and can only be wound tighter by traction. However, not only is the efficiency relatively low, but it also has a certain impact on the core barrel. The second point is that during the winding process, there is a lack of certain limits, and the cable is easy to "open" or the distance from the adjacent turns is too large. The above reasons will have a great impact on the winding of the cable.

[0050] Reference Figure 12 In this solution, a corrosion-resistant cable is provided, which includes an inner core 51, an insulating layer 52 and a sheath 53 from the inside to the outside. The inner core 51 is arranged in the sheath 53 and there are five of them. Each inner core 51 is made of conductive metal copper, and the outer end of the inner core 51 is coated with an anti-corrosion coating 511, while the insulating layer 52 is made of insulating colloid material. In practice, it can be replaced with other materials according to the use environment, such as high-temperature resistant and non-combustible inorganic minerals, and several inner cores 51 are inserted in the insulating layer 52. The sheath 53 in this case is made of plastic material and fits tightly to the outside of the insulating layer 52.

[0051] To this end, combined with the Figure 1-12 The present invention provides a corrosion-resistant cable and a trial winding device and method for manufacturing the cable, which aims to provide a certain limiting structure on the outside of the wire turns, so that pressure can be applied to the wire turns immediately after the wire turns are wound to ensure a tight connection between the wire turns, and to pre-bend the cable at a certain angle, so that the cable wound on the outside of the core tube can be "quickly" bent to the expected bending degree, thereby reducing traction force consumption.

[0052] Specifically, the entire equipment includes a body 1 and a winding machine 2. A winding roller 11 is placed horizontally on one side of the body 1 (for the convenience of description and understanding, refer to the position in the accompanying drawings, here referred to as the left side of the body 1). The winding roller 11 in this example adopts a flip structure, which can easily realize the switching and replacement between the empty roller and the real roller by rotation. This is a well-known technology and is not described in detail in this example. The winding machine 2 in this example is installed on the body 1 through a screw drive installed on the body 1, and can be guided along the length direction of the body 1.

[0053] The winding machine 2 as a whole consists of two parts, a sliding frame 21 that is movably engaged with the screw rod on the body 1 and a telescopic cylinder 22 installed at the front end of the sliding frame 21. The sliding frame 21 is guided and slid along the length direction of the body 1, and the telescopic cylinder 22 is movably installed at the front end of the sliding frame 21. It can be guided and slid along the width direction of the body 1. Inside the telescopic cylinder 22 is a rotatable fixed shaft 23. A cylindrical core barrel is assembled on the fixed shaft 23, and the cable on the winding roller 11 can be wound around the core barrel.

[0054] Specifically, a drive motor is provided inside the telescopic cylinder 22 for driving the fixed shaft 23 to rotate. This is a prior art and is not shown in detail in this example and the accompanying drawings. A ball 221 is installed at the end of the telescopic cylinder 22 facing the body 1, and the part of the fixed ball 221 is slidably installed in the telescopic cylinder 22, and a spring for shock absorption is provided between the telescopic cylinder 22 and the fixed ball 221.

[0055] In this example, when installing the core barrel, first, the core barrel is hollow and has a card slot structure inside. When it is inserted into the fixed shaft 23, the card block connected to the front end of the fixed shaft 23 is embedded in the card slot. At this time, by threading the limit plate 12 located at the other end of the core barrel into the screw connected to the front end of the fixed shaft 23, the limit plate 12 can rotate with the fixed shaft 23, thereby intermittently triggering the guide block 121 on the limit plate 12.

[0056] At the same time, a slide 14 is arranged on the body 1 along the length direction of the body 1. The end of the slide 14 facing the telescopic cylinder 22 is inclined, and a ball 221 is installed on the end of the telescopic cylinder 22 facing the slide 14. The ball 221 always rolls on the slide 14. When the slide frame 21 starts to move, as the slope of the inclined surface of the slide 14 changes, the entire telescopic cylinder 22 and its connecting parts will move in a certain direction, thereby allowing the fixed shaft 23 connected to one end of the telescopic cylinder 22 to move, so that the core cylinder can gradually move axially while rotating, thereby performing winding in circles.

[0057] The winding machine 2 also includes a fixed ring 24, which is concentrically mounted on the outside of the telescopic cylinder 22. The end of the pressing sleeve 3 facing the telescopic cylinder 22 can slide radially toward the fixed ring 24 and abut against the core cylinder. The pressing sleeve 3 can intermittently telescope toward the end away from the core cylinder. In this example, two pressing sleeves 3 are provided, symmetrically distributed above and below the core cylinder. The fixed ring 24 is elastically mounted on the machine body 1, with a spring interposed between the two.

[0058] When the cam 33 is in the unlock state, the locking cam 33 is locked and the locking cam 33 is unlocked, so that the cam 33 can be unlocked when the cam 33 is unlocked. (In this example, a resistance spring is provided between the sliding sleeve 31 and the sliding rod 32).

[0059] When the upper end of one protrusion 311 is abutted by the lower end of another guide block 121, the entire pressing sleeve 3 will be pressed downward, and in the contact state with the wire turn, the guide block 121 will have a certain resistance against the end face of the new wire turn (in this example, the diameter of the limit plate 12 is about twice that of the telescopic cylinder 22, and there are four groups of guide blocks 121 in pairs, so that the pressing sleeve 3 completes three cycles in a single cycle).

[0060] When the entire winding is about to end, it is necessary to separate the pressing sleeve 3 and the wire turns in time. A rectangular hole 312 is opened at the upper end of the sliding sleeve 31, and a cable rod 13 that can be inserted into the rectangular hole 312 is installed on the telescopic cylinder 22. When the cable rod 13 approaches the end of the core tube, the height of the upper end surface of the cable rod 13 gradually increases, so that the entire pressing sleeve 3 has a tendency to move upward.

[0061] After this, you can select the winding direction, continue winding in the reverse direction or end the entire winding process.

[0062] The pressing sleeve 3 in this example is arranged parallel to the core tube and can rest against the outside of the adjacent turns, and its end facing the turns is arc-shaped, so that when it contacts the turns, it can apply extrusion pressure to the side ends of the turns. At the same time, the upper half of the arc surface will "buckle" on the upper end of the turn to avoid deformation due to its own material properties, which affects the winding of the cable.

[0063] In order to fold the cable on the pre-winding roller 4 in advance so that excessive force will not be applied during the subsequent traction process to cause deformation of the core drum, the body 1 also includes a pre-winding roller 4, which includes a main roller 41 and an auxiliary roller 42 distributed in parallel up and down. The main roller 41 and the auxiliary roller 42 are staggered and distributed in parallel between the winding roller 11 and the core drum. The cable between the winding roller 11 and the core drum is wound from the winding roller 11 in a clockwise direction on the upper part of the main roller 41 to the lower end of the auxiliary roller 42, and the diameter of the main roller 41 is adjustable.

[0064] In this embodiment, the main roller 41 includes a rotating shaft 411 and an extension plate 412. The middle part of the rotating shaft 411 is hollow, and the extension plate 412 is provided with a plurality of plates and distributed circumferentially on the outside of the rotating shaft 411. The outer end of each extension plate 412 is an arc surface and is concentric with the rotating shaft 411. Each extension plate 412 can elastically slide in the radial direction of the rotating shaft 411, and the end facing the axial direction of the rotating shaft 411 is an inclined surface. A push rod 413 is inserted into the rotating shaft 411, and the side of the push rod 413 facing the inclined surface of the lower end of the extension plate 412 is in the shape of a cone.

[0065] A rotatable screw sleeve 414 is provided on the rotating shaft 411, and the screw sleeve 414 is threadedly engaged with the push rod 413. In this case, a guide rail is provided at the outer end of the push rod 413, and a sliding groove corresponding to the guide rail is provided inside the rotating shaft 411. When the screw sleeve 414 is rotated, the push rod 413 will be guided to slide inside the rotating shaft 411, pushing each extension plate 412 to expand toward the outside of the rotating shaft 411, thereby increasing the diameter of the rotating shaft 411, and thereby adjusting the size of the pre-winding roller 4, tightening the cable between the main roller 41 and the auxiliary roller 42, so that it can be quickly tightened after replacing the core tube of different sizes. The method of fixing the core tube and the new cable end is a well-known technology, which can be used by snapping, gluing, etc., and is not specifically limited.

[0066] This solution also provides a method for winding a corrosion-resistant cable, which is applied to the above-mentioned trial winding device for manufacturing a cable, comprising the following steps:

[0067] Step 1: Wind the cable on the winding roller 11 around the main roller 41, the auxiliary roller 42 and the core drum in sequence, and tighten the cable between the core drum and the winding roller 11;

[0068] Step 2: Adjust the position of the winding machine 2 on the machine body 1 to ensure that the arc end of the pressing sleeve 3 can press against the wire turns on the core barrel;

[0069] Step 3: Drive the core tube to rotate and rotate the guide on the winding roller 11 to wind it. When a single turn of wire is completed, the pressing sleeve 3 will temporarily be off the wire turn. When the next turn of wire begins to be wound, it will be pressed against the wire turn again. When the entire winding is completed, the pressing sleeve 3 will no longer be against the wire turn, the core tube will be removed and the winding of the next core tube will be carried out.

[0070] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A bending trial device for manufacturing cables, characterized in that: include: A machine body, wherein a winding roller is provided on the machine body; The winding machine can be guided and moved along the length direction of the machine body. A rotatable fixed shaft is provided on the winding machine. A cylindrical core drum is mounted on the fixed shaft and the cable on the winding roller can be wound on the core drum. Among them, a pressing sleeve which can be guided and moved in the vertical direction of the turns on the outer side of the core drum is also provided on the winding machine, and the pressing sleeve is arranged parallel to the core drum and can rest against the outer side of the adjacent turns, and its end facing the turns is in an arc shape, and the winding machine includes a sliding frame and a telescopic cylinder, the sliding frame is guided and slid along the length direction of the machine body, the telescopic cylinder is movably mounted on the front end of the sliding frame, and can be guided and slid along the width direction of the machine body, the fixed shaft is mounted on the end of the telescopic cylinder away from the sliding frame, a sliding table is arranged on the machine body along the length direction of the machine body, the end of the slide facing the telescopic cylinder is inclined, and a rolling ball is installed on the end of the telescopic cylinder facing the slide, and the rolling ball always rolls against the slide; The winding machine includes a fixed ring, which is concentrically sleeved on the outside of the telescopic cylinder, and the end of the pressing sleeve facing the telescopic cylinder can slide in the radial direction of the fixed ring and abut against the core cylinder; The pressing sleeve can intermittently telescope toward the end away from the core barrel; The fixing ring is provided with a sliding opening, which is arranged to pass through from top to bottom. The pressing sleeve includes: The sliding sleeve is rectangular and slides upward and downward in the sliding opening; a sliding rod elastically sliding on the lower end of the sliding sleeve; The abutment head is in an arc-shaped block shape as a whole and is provided at one end of the slide bar facing the core barrel, and the end of the abutment head facing the wire turn is in an arc surface; Two protrusions are vertically distributed on one end of the sliding sleeve, and the two protrusions are arranged radially along the fixed ring. A limit plate is installed on one side of the core barrel. The limit plate is provided with a guide block that matches the two protrusions respectively at the end facing the protrusion. The two guide blocks are staggered, and each guide block has an arc surface at one end facing the adjacent protrusion, and the arc surfaces on the two guide blocks face opposite directions.

2. A bending trial device for manufacturing cables according to claim 1, characterized in that: The body also includes: The pre-winding roller includes a main roller and an auxiliary roller arranged in parallel above and below. The main roller and the auxiliary roller are arranged in parallel between the winding roller and the core drum. The cable between the winding roller and the core drum is wound clockwise from the winding roller, lapped on the upper part of the main roller and wound toward the lower end of the auxiliary roller. Wherein, the diameter of the main roller is adjustable.

3. A bending trial device for manufacturing cables according to claim 2, characterized in that: The main roller includes: A rotating shaft, wherein the middle portion of the rotating shaft is hollowed out; Extension plates, wherein the extension plates are provided in a plurality of pieces and are circumferentially distributed outside the rotation axis, and the outer end of each extension plate is an arc surface and is concentric with the rotation axis; Among them, each extension plate can slide elastically in the radial direction of the rotating shaft, and the end facing the axial direction of the rotating shaft is an inclined surface. A push rod is inserted into the rotating shaft, and the side of the push rod facing the inclined surface of the lower end of the extension plate is truncated cone-shaped.

4. A bending trial device for manufacturing cables according to claim 3, characterized in that: A rotatable screw sleeve is provided on the rotating shaft and is matched with the thread of the rod.

5. A method for winding a corrosion-resistant cable, applied to a trial winding device for manufacturing a cable as claimed in claim 4, characterized in that: The steps include: Step 1: Wind the cable on the winding roller around the main roller, auxiliary roller and core drum in sequence, and keep the cable tight between the core drum and the winding roller; Step 2: Adjust the position of the winding machine on the machine body to ensure that the arc end of the pressing sleeve can press tightly against the wire turns on the core barrel; Step 3: Drive the core barrel to rotate and rotate the guide on the winding roller to wind. After completing the winding of a single turn, the pressing sleeve will temporarily be removed from the turn. When the next turn begins to be wound, it will be pressed against the turn again. When the entire winding is completed, the pressing sleeve will no longer be pressed against the turn. At this time, the core barrel will be removed and the winding of the next core barrel will be carried out.

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