Drag chain cable and preparation method thereof

Abstract

The invention discloses a tow chain cable and a preparation method thereof, and particularly relates to the technical field of cables, the tow chain cable comprises cable bodies and a tow chain, the cable bodies are externally provided with raised line structures, the raised line structures are strip-shaped flexible structures, and the raised line structures are used for separating two adjacent cable bodies. A non-contact area is formed between every two adjacent cable bodies, the protruding strip structures are spirally wound outside the cable bodies and bonded through mucilage glue, and the protruding strip structures are triangular protruding strip structures. According to the invention, after the raised line structures are arranged outside the cable bodies, the two adjacent cable bodies have a large area and do not contact with each other, so that in a severe environment, even if hard particles such as gravels and dust are attached to the outer surfaces of the cable bodies, the cable bodies are not extruded by the two cable bodies, and the service life of the cable bodies is prolonged. Therefore, effective partition protection is formed on the cable body, and the use safety of the tow chain cable is further protected.

Description

Technical Field

[0001] The present invention relates to the technical field of cables, and more particularly, to a drag chain cable and a preparation method thereof. Background Art

[0002] Drag chain cables are special flexible cables designed for use in reciprocating motion and highly dynamic bending environments. They are typically installed in cable drag chains to provide power, signals, or data transmission to mobile equipment.

[0003] For some large equipment, and due to corresponding space limitations, in order to make full use of the space, multiple groups of cables are often set in a set of drag chains. In order to ensure that the cables have enough bending space, it is not advisable to use too many clamps and other structures to fix the cables in the drag chain, so as to ensure that during use, especially during bending, the cables in the bending area have enough room to move.

[0004] Among them, in some outdoor or mining places, in addition to facing frequent bending, the drag chain cable also needs to face harsh environments such as high temperature and dust. Although some sealed drag chains can achieve a certain degree of closed protection, since the drag chain needs to move back and forth continuously, in actual use, some hard particles such as gravel and dust will still enter the drag chain. Since there are many cables inside the drag chain, during the movement, especially the bending process, the two adjacent cables are easy to contact each other and form extrusion and friction. At this time, the presence of hard particles will cause scratches and wear between the two adjacent cables. Under long-term use conditions, it is very easy to cause damage to the outer sheath of the cable, which relatively reduces the service life of the drag chain cable. Summary of the Invention

[0005] The present invention provides a drag chain cable and a preparation method thereof, and aims to solve the problem that, during actual use of existing drag chain cables, some hard particles may adhere to the cables, causing two adjacent cables to easily come into contact with each other, resulting in extrusion and friction, and further causing scratches and wear between the two adjacent cables.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a drag chain cable, comprising a cable body and a drag chain, the cable body being arranged in the drag chain, and there being multiple groups of cable bodies in the drag chain, and a convex strip structure being arranged on the outside of the cable body, the convex strip structure being a long flexible strip structure, and the convex strip structure being used to separate two adjacent cable bodies to form a non-contact area between the two adjacent cable bodies, and the convex strip structure being spirally wound around the outside of the cable body and bonded by adhesive.

[0007] Preferably, the convex strip structure is a triangular convex strip structure, a plurality of unit cavities are arranged inside the triangular convex strip structure, and air holes communicating with the unit cavities are arranged on both side walls of the triangular convex strip structure.

[0008] A method for preparing a drag chain cable, comprising: using a spiral winding device to spirally wind a convex strip structure onto a cable body; the spiral winding device comprises a spiral winding machine and a cable puller; the spiral winding machine comprises a winding rotator, the winding rotator being rotatably disposed in a rotator bracket; the winding rotator being provided with a cable passage slot for passing the cable body; the cable puller being used to drive the cable body to move; and a convex strip feeder being provided on the winding rotator at a position corresponding to the cable puller; The preparation method comprises the following steps: Step 1: Cut the existing long cable to the corresponding length according to the usage requirements to form the cable body; Step 2: Pass one end of the cable body through the winding rotor of the spiral winding machine, and use the convex strip feeder to provide the convex strip structure, so that the end of the convex strip structure is pre-bonded to the cable body; Step 3: The cable body is driven forward by the cable puller, and the winding rotator is driven to rotate synchronously, so that the convex strip feeder advances in a spiral relative to the cable body, so that the convex strip structure is spirally wound on the cable body and forms a bond; Step 4: After the convex strip structure is wound, cut the convex strip structure and output the cable body; Step 5: Install each cable body in the drag chain one by one.

[0009] Preferably, the convex strip loader is used to load the convex strip structure. The convex strip loader is a reel structure rotatably mounted on a winding rotator. The convex strip structure is wound and stored on the reel structure. An adhesive layer is provided on the convex strip structure.

[0010] Preferably, the cable puller is composed of two groups of belt-type conveying structures, which are symmetrically arranged up and down. The belt-type conveying structure includes a conveying belt and a pulley. The conveying belt is wound around the pulley. Under the support of the pulley, the conveying belt forms a conveying contact portion. An elastic squeezer is also provided in the inner area of ​​the conveying belt. The elastic squeezer includes a pressure plate and an elastic support member. The pressure plate is provided in the conveying contact portion area corresponding to the conveying belt. The elastic support member is used to provide an elastic force to the pressure plate to squeeze the conveying belt.

[0011] Preferably, an anti-support device and an auxiliary suppressor are installed at one end of the winding rotator corresponding to the convex strip loader. The auxiliary suppressor is arranged near the area where the convex strip structure initially contacts the cable body, and the anti-support device is arranged on the opposite side of the auxiliary suppressor. The anti-support device is a roller structure, and the roller frame of the roller is fixedly installed on the winding rotator. The roller is a smooth structure and is in contact with the cable body.

[0012] Preferably, the auxiliary suppressor includes a pressing frame, which is fixedly mounted on the winding rotator through a connecting frame. An arc guide block is fixedly mounted on the pressing frame, and a convex strip accommodating groove is provided in the arc guide block. The convex strip accommodating groove is adapted to the convex strip structure spirally wound on the cable body.

[0013] Preferably, exhaust cavities are provided at the edge positions on both sides of the convex strip receiving groove corresponding to the contact area between the convex strip structure and the cable body, an exhaust pipe is fixedly installed on the arc guide block, the exhaust pipe is connected to the exhaust cavity, the exhaust pipe is connected to the exhaust equipment, and an air blowing channel is provided in the area of ​​the air vent of the triangular convex strip structure in the arc guide block, the air blowing channel is connected to the air blowing pipe, and the air blowing pipe is connected to the air blowing equipment.

[0014] Preferably, an air flow transfer chamber is provided inside the winding rotator, a docking channel is provided in the air flow transfer chamber, the docking channel is connected to the exhaust pipe, an arc-shaped air guide cover is provided at the bottom of the winding rotator, the arc-shaped air guide cover is fixedly installed in the rotator bracket, the arc-shaped air guide cover slides with the circumferential surface of the winding rotator, a docking tube is fixedly connected to the arc-shaped air guide cover, the docking tube is connected to the exhaust equipment, the area of ​​the arc-shaped air guide cover corresponding to the winding rotator is set as an opening area, and a sealing structure is provided between the edge of the arc-shaped air guide cover and the winding rotator, a plurality of groups of air holes are provided on the circumferential surface of the winding rotator, each air hole is connected to the air flow transfer chamber, and a one-way valve is provided in the air hole.

[0015] Preferably, an opening is provided on the winding rotator, a blocking partition is slidably provided in the arc-shaped air guide hood, a damping portion is provided at one end of the blocking partition away from the rotation direction of the winding rotator, and when the damping portion contacts the winding rotator, resistance to the blocking partition is formed, and an elastic member is provided between the blocking partition and the arc-shaped air guide hood, which is used to provide an elastic force to the blocking partition away from the rotation direction of the winding rotator.

[0016] The beneficial effects of the present invention are: 1. After the convex strip structure is provided on the outside of the cable body, when multiple cable bodies are installed in a drag chain, even if two adjacent cable bodies are too close to each other, the convex strip structure will block the two adjacent cable bodies, so that there is a large area between them that will not form contact. Therefore, in harsh environments, even if hard particles such as gravel and dust are attached to the outer surface of the cable body, they will not be squeezed by the two cable bodies, thereby forming effective isolation protection for the cable body. Especially in high-heat scenarios, due to the presence of the convex strip structure, a certain gap is retained between each cable body. Therefore, the drag chain cable can also be effectively dissipated, which can further protect the use safety of the drag chain cable. 2. The present invention uses a triangular rib structure. When two cable bodies are too close, the other cable body begins to squeeze the triangular rib structure, reducing the volume of the unit cavity and squeezing the air inside it out of the vent. At this time, the airflow formed by the vent can blow away hard particles in the surrounding area, reducing the adhesion of hard particles in the contact area of ​​the triangular rib structure, further improving the safety of use. 3. During the preparation of the present invention, a negative pressure is formed in the vacuum cavity, and with the help of the negative pressure, a certain adsorption can be formed on the surface of the cable body, thereby avoiding excessive depression of the outer sheath of the cable body. At the same time, the negative pressure will also promote the discharge of air in the adhesive between the convex strip structure and the cable body, further improving the bonding efficiency of the convex strip structure and the cable body. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the overall structure of the drag chain cable of the present invention; Figure 2 This is a schematic diagram of the distribution structure of multiple cable bodies in the drag chain of the present invention; Figure 3 Schematic diagram of the composition of the cable body of the present invention; Figure 4 This is a schematic diagram of the overall structure of the rectangular convex strip structure of the present invention; Figure 5 This is a schematic diagram of the overall structure of the triangular convex strip structure of the present invention; Figure 6 This is a schematic diagram of the internal structure of the triangular convex strip structure of the present invention; Figure 7 A diagram showing a state in which one cable body contacts a triangular convex strip structure on another cable body according to the present invention; Figure 8 This is a diagram of the state when one cable body contacts and squeezes the triangular convex strip structure on the other cable body of the present invention; Figure 9 This is a flow chart of the preparation method of the drag chain cable of the present invention; Figure 10 This is a schematic diagram of the overall composition of a spiral winding device for preparing a drag chain cable according to the present invention; Figure 11 This is a state diagram of the spiral winding device when the convex strip structure is wound around the cable body of the present invention; Figure 12 This is a schematic diagram of the structure of the present invention after adding a back-up device and an auxiliary suppressor to the winding rotor; Figure 13 This is a diagram showing the state when the arc guide block of the present invention assists in pressing the convex strip structure; Figure 14This is a schematic diagram of the overall structure of the auxiliary presser when the arc-shaped guide block is used as the auxiliary presser in the present invention; Figure 15 This is a diagram showing the state of the arc-shaped guide block of the present invention assisting in pressing the rectangular convex strip structure outside the cable body; Figure 16 For the present invention Figure 15 A magnified view of the structure of part A; Figure 17 This is a schematic structural diagram of the airflow transfer chamber in the rotor of the present invention; Figure 18 This is a state diagram of the present invention when the opening of the rotating device gradually enters the arc-shaped air guide cover and the blocking partition is automatically blocked; Figure 19 This is a diagram showing the state when the arc-shaped guide block of the present invention assists in pressing the triangular convex strip structure outside the cable body; Figure 20 It is a cross-sectional view of the overall structure of the rotating device of the present invention.

[0018] The accompanying drawings are marked as follows: 1. cable body; 101. core; 102. inner sheath; 103. shielding layer; 104. armor layer; 105. outer sheath; 11. rib structure; 111. rectangular rib structure; 112. triangular rib structure; 1121. unit cavity; 1122. vent; 2. drag chain; 3. spiral winding machine; 31. winding rotator; 311. cable groove; 312. opening; 313. air flow transfer cavity; 314. docking channel; 315. air hole; 316. one-way valve; 32. Rotator bracket; 33. Raised strip loader; 4. Cable tractor; 41. Conveyor belt; 42. Pulley; 43. Elastic squeezer; 431. Pressing plate; 432. Elastic support member; 5. Cable loader; 6. Counter-supporter; 7. Auxiliary suppressor; 71. Pressing frame; 72. Arc-shaped guide block; 73. Raised strip receiving groove; 731. Exhaust cavity; 732. Blowing channel; 74. Exhaust pipe; 75. Blowing pipe; 8. Arc-shaped air guide hood; 81. Butt joint; 82. Sealing partition; 83. Damping part. DETAILED DESCRIPTION

[0019] The present application is described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technicians in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Refer to the instruction manual Figure 1A drag chain cable comprises a cable body 1 and a drag chain 2. The cable body 1 is arranged in the drag chain 2. There are multiple sets of cable bodies 1 in the drag chain 2. The cable body 1 and the drag chain 2 are both commonly used cable and drag chain structures in the prior art. As for the cable body 1, refer to the attached manual. Figure 3 , which is mainly composed of a wire core 101, an inner sheath 102, a shielding layer 103, an armor layer 104 and an outer sheath 105, and includes but is not limited to the above components. Since the above content is the basic structure in the drag chain cable, this application will not explain it in detail. It should be emphasized that in this application, a convex strip structure 11 is provided on the outside of the cable body 1, that is, a convex strip structure 11 is provided on the outside of the outer sheath 105. The convex strip structure 11 is a long strip of rubber flexible structure, wherein the convex strip structure 11 is mainly used to separate two adjacent cable bodies 1 to avoid large-area contact and extrusion between the two adjacent cable bodies 1, and the convex strip structure 11 can be selected in multiple groups and distributed in parallel along the length of the cable body 1, or a ring-shaped convex strip structure can be selected. The convex strip structures 11 are arranged at intervals on the cable body 1, wherein one or more convex strip structures 11 can also be selected to be arranged on the outside of the cable body 1 in a spirally wound manner. As for the combination of the cable body 1 and the convex strip structure 11, one-piece molding or adhesive connection can be selected. The one-piece molding means that when the outer sheath 105 is extruded, the extrusion port structure is improved so that the convex strip structure 11 outside the outer sheath 105 is directly formed, but the design is difficult and the cost is high. Therefore, in the present invention, a convex strip structure 11 is selected to be used, which is spirally wound on the outside of the cable body 1 and bonded by adhesive. After the subsequent convex strip structure 11 is damaged, the convex strip structure 11 can be re-bonded without replacing the cable body 1.

[0021] Refer to the instruction manual Figure 2 After the convex strip structure 11 is set on the outside of the cable body 1, when multiple cable bodies 1 are installed in the drag chain 2, even if two adjacent cable bodies 1 are too close, the convex strip structure 11 will block the two adjacent cable bodies 1, so that a large area will not form contact. Therefore, in harsh environments, even if hard particles such as gravel and dust are attached to the outer surface of the cable body 1, they will not be squeezed by the two cable bodies 1, thereby forming an effective partition protection for the cable body 1. Especially in high-heat scenarios, due to the presence of the convex strip structure 11, a certain gap is retained between each cable body 1. Therefore, the drag chain cable can also be effectively dissipated, which can further protect the safe use of the drag chain cable.

[0022] It should be noted that the main function of the convex strip structure 11 is to form a partition between two adjacent cable bodies 1. Its specific shape can be selected according to actual needs. For example, refer to the attached specification. Figure 4The convex strip structure 11 can be a rectangular convex strip structure 111 (with a rectangular cross section), and the rectangular convex strip structure 111 can be a hollow structure or a solid structure. In addition, the convex strip structure 11 can also be a semicircular structure or other shapes.

[0023] Among them, since hard particles may also be attached to the surface of the convex strip structure 11, in order to further reduce the probability of damage to the cable body 1, the present embodiment preferably sets the convex strip structure 11 as a triangular convex strip structure 112 (with a triangular cross section). For details, please refer to the attached manual. Figure 5 The bottom edge of the triangular convex strip structure 112 is glued to the cable body 1, and its edge (i.e., the edge corresponding to the sharp corner) is in contact with another adjacent cable body 1, thereby minimizing the impact area of ​​hard particles attached to the triangular convex strip structure 112.

[0024] In addition, refer to the instructions attached Figure 5 and Figure 6 The triangular convex strip structure 112 is a hollow structure, that is, a plurality of unit cavities 1121 are provided inside the triangular convex strip structure 112, and both side walls of the triangular convex strip structure 112 (i.e., the surfaces corresponding to the two hypotenuses) are provided with air holes 1122 communicating with the unit cavities 1121. By adopting this solution, when two adjacent cable bodies 1 begin to contact, refer to the attached manual. Figure 7 , the other cable body 1 contacts the sharp corner of the triangular convex strip structure 112 first, and then, when the two cable bodies 1 are too close, refer to the attached manual. Figure 8 That is, the other cable body 1 begins to squeeze the triangular convex structure 112, reducing the volume of the unit cavity 1121, and then squeezing the air inside it out from the air vent 1122. At this time, the airflow formed by the air vent 1122 can blow away the hard particles in the surrounding area, reducing the adhesion of hard particles in the contact area of ​​the triangular convex structure 112, and further improving the safety of use.

[0025] It should be noted that due to the hollow setting of the triangular ridge structure 112, the triangular ridge structure 112 can also undergo multi-directional deformation after contacting another group of cable bodies 1. That is to say, when the two cable bodies 1 are in contact and squeezed, a certain amount of irregular mutual movement can be generated. Since the triangular ridge structure 112 can form free deformation, this movement will not form relative friction with the cable body 1, which can further reduce the damage to the triangular ridge structure 112 itself.

[0026] In the above embodiment, since the cable body 1 and the drag chain 2 and other structures can adopt the existing technology, the main production and preparation scheme of the cable body 1 can also directly use the common scheme. Therefore, the preparation of the cable body 1 in the present invention is not explained in detail. Since the main difference in the present invention is that a convex strip structure 11 is provided on the outside of the cable body 1, this embodiment also provides a preparation method for spirally winding the convex strip structure 11 on the cable body 1, mainly using a spiral winding device to spirally wind the convex strip structure 11 on the cable body 1, and the convex strip structure 11 is adhered to the cable body 1 by adhesive.

[0027] For details, please refer to the attached manual. Figure 9 , the above preparation method comprises the following steps: Step 1: Cut the existing long cable to the corresponding length according to the usage requirements to form the cable body 1; Step 2: Pass one end of the cable body 1 through the winding rotator 31 of the spiral winding machine 3, and use the convex strip feeder 33 to provide the convex strip structure 11, so that the end of the convex strip structure 11 is pre-bonded to the cable body 1; Step 3: The cable body 1 is driven forward by the cable puller 4, and the winding rotator 31 is driven to rotate synchronously, so that the convex strip feeder 33 spirals forward relative to the cable body 1, thereby causing the convex strip structure 11 to spirally wind around the cable body 1 and form a bond; Step 4: After the convex strip structure 11 is wound to a specified length, the convex strip structure 11 is cut and the complete cable body 1 is output; Step 5: Install each cable body 1 in the drag chain 2 one by one according to the installation position to form a complete drag chain cable.

[0028] In the above preparation method, the spiral winding device consists of a spiral winding machine 3 and a cable tractor 4. Figure 10 and Figure 11 The spiral winding machine 3 includes a winding rotator 31, which is rotatably arranged in a rotator bracket 32. The rotator bracket 32 ​​is provided with a rotation drive component (such as a combination of a motor and a gear) for driving the winding rotator 31 to rotate. The winding rotator 31 is provided with a cable groove 311 for passing the cable body 1. Figure 20The main body of the winding rotator 31 is a cylindrical structure, in which a groove is provided in the radial direction and axially passes through the winding rotator 31 to form a cable groove 311, and both ends of the winding rotator 31 extend out of the rotator bracket 32 ​​to form an exposed portion exposed to the outside of the rotator bracket 32. The cable puller 4 is used to drive the cable body 1 to move forward, thereby forming a movement relative to the winding rotator 31. A convex strip feeder 33 is provided at a position corresponding to the cable puller 4 on the winding rotator 31. The convex strip feeder 33 is used to feed the convex strip structure 11. Specifically, the convex strip feeder 33 can be selected to be rotatably installed on the winding A reel structure is provided on the rotator 31, and the convex strip structure 11 is wound and stored on the reel structure. The convex strip structure 11 has its own adhesive layer, or a set of gluing equipment is separately provided to apply glue to the convex strip structure 11. After the cable body 1 passes through the winding rotator 31, the convex strip structure 11 is bonded to the cable body 1, and then the cable body 1 is driven forward by the cable tractor 4, and the winding rotator 31 is synchronously driven to rotate, so that the convex strip loader 33 and the cable body 1 form a relative spiral trajectory motion, so that the convex strip structure 11 is spirally wound on the cable body 1 and forms a bond, thereby obtaining a cable body 1 with a convex strip structure 11.

[0029] Among them, in order to ensure that the cable body 1 enters the winding rotator 31 smoothly, a cable feeder 5 can also be set on the side of the spiral winding machine 3 away from the cable tractor 4. With the help of the cable feeder 5, the convex structure 11 is mechanically guided and transported, and the spiral winding machine 3, the cable tractor 4 and the cable feeder 5 are installed on the same machine base. For the cable tractor 4 and the cable feeder 5, a transmission guide wheel drive structure can be adopted. However, since the convex structure 11 is set on the outside of the cable body 1, the guide wheel is prone to ups and downs when in use, and in severe cases it may even cause damage to the bonding shape of the convex structure 11. To prevent the cable from being damaged (the adhesive has not yet solidified), this embodiment further provides the following technical solutions. Specifically, the cable tractor 4 is composed of two sets of belt-type conveying structures, which are symmetrically arranged in an upper and lower manner. The belt-type conveying structures include a conveying belt 41 and a pulley 42. The conveying belt 41 is wound around the pulley 42. Supported by the pulley 42, the conveying belt 41 forms a conveying contact portion of a certain length. The cable body 1 follows the movement of the conveying belt 41 within the conveying contact portion of the two sets of belt-type conveying structures, thereby forming a strong traction on the cable body 1. The conveying belt 41 itself is a rubber structure with a certain degree of flexibility. When conveying the cable body 1, it can automatically adapt to the convex strip structure 11, without causing accidental damage to the convex strip structure 11, thereby improving traction safety.

[0030] At the same time, an elastic squeezer 43 is also provided in the inner area of ​​the conveyor belt 41. The elastic squeezer 43 includes a pressure plate 431 and an elastic support member 432. The pressure plate 431 is arranged in the conveying contact area of ​​the conveyor belt 41. The elastic support member 432 is composed of a sleeve and a slide rod. The slide rod is slidably installed in the sleeve, and the pressure plate 431 is fixedly installed on the slide rod. An elastic member, such as a spring, is provided in the sleeve. The spring is used to provide an elastic force for squeezing the pressure plate 431 toward the conveyor belt 41, thereby further improving the conveying effect of the cable body 1 in actual use. The pulley 42 and the elastic squeezer 43 can be installed on the same support frame, and then the support frame is fixedly installed on the machine base. At the same time, the cable feeder 5 can also adopt the same structure as the cable tractor 4 to form a feeding and conveying for the cable body 1, ensuring that the cable body 1 can pass through the winding rotator 31 smoothly.

[0031] It should be noted that, since the cable body 1 is in a suspended state after passing through the cable groove 311, the convex strip structure 11 constantly contacts the cable body 1, which will cause certain interference to the cable body 1. Although there is no requirement for the actual position accuracy of the convex strip structure 11 on the cable body 1, if the fitting pressure of the convex strip structure 11 and the cable body 1 is insufficient during the initial bonding, the fitting quality of the convex strip structure 11 will be affected. For this reason, this embodiment also provides the following technical solutions. For details, refer to the attached specification. Figure 12 , an end of the winding rotator 31 corresponding to the convex strip feeder 33 is also equipped with an anti-support device 6 and an auxiliary suppressor 7, and the auxiliary suppressor 7 is arranged near the area where the convex strip structure 11 and the cable body 1 are initially in contact. That is to say, when the cable body 1 continues to advance and the auxiliary suppressor 7 rotates synchronously with the winding rotator 31, the auxiliary suppressor 7 always corresponds to the area where the convex strip structure 11 is just bonded to the cable body 1, and squeezes the convex strip structure 11, and the anti-support device 6 is arranged on the opposite side of the auxiliary suppressor 7, and is distributed on both sides of the cable body 1 respectively, and the area of ​​the cable body 1 corresponding to the anti-support device 6 does not have the convex strip structure 11. Therefore, the anti-support device 6 can directly contact the cable body 1 to form a support for the cable body 1, and the auxiliary suppressor 7 cooperates with the support of the anti-support device 6 to squeeze the part of the convex strip structure 11 that has just been bonded to the cable body 1, thereby forming an auxiliary pressing on the convex strip structure 11, thereby promoting full adhesion of the adhesive of the convex strip structure 11.

[0032] Among them, the anti-support device 6 and the auxiliary suppressor 7 can both adopt a roller structure, and the roller frame of the roller is directly fixedly installed on the winding rotator 31. For example, the anti-support device 6 includes two rollers in contact with the cable body 1, and the auxiliary suppressor 7 includes a roller in contact with the convex structure 11, so that the above-mentioned support is achieved when the winding rotator 31 rotates. Among them, the roller is a smooth structure, so that when the cable body 1 moves relative to the winding rotator 31, no large friction is formed with the roller.

[0033] In the above embodiment, since the outer sheath 105 of the cable body 1 and the convex strip structure 11 are both flexible, when the roller is used as an auxiliary press 7 to directly extrude the convex strip structure 11, the outer sheath 105 will be squeezed synchronously, resulting in a certain deformation of the actual bonding surface, thereby affecting the bonding quality. In addition, the resistance of the roller to the convex strip structure 11 along the length direction of the cable body 1 is also likely to cause the convex strip structure 11 to form a certain dislocation slip on the cable body 1. For this reason, this embodiment also provides another auxiliary press 7, specifically, refer to the attached manual. Figure 13 and Figure 14 The auxiliary suppressor 7 includes a pressing frame 71, which is fixedly mounted on the winding rotator 31 through a connecting frame. An arc guide block 72 is fixedly mounted on the pressing frame 71. The arc guide block 72 is an intercepting structure of a spiral structure, and its actual trajectory is the same arc trajectory as the spiral line of the winding trajectory of the convex strip structure 11. That is to say, the arc guide block 72 can closely fit the surface of the cable body 1 and can adapt to the trajectory of the convex strip structure 11 spirally wound on the cable body 1. Specifically, the arc A convex strip receiving groove 73 is provided in the guide block 72, and the convex strip receiving groove 73 is adapted to the convex strip structure 11 spirally wound on the cable body 1. In actual use, the arc-shaped guide block 72 moves relative to the convex strip structure 11 following the winding rotator 31, and the convex strip structure 11 enters the convex strip receiving groove 73 after contacting the cable body 1. Therefore, the convex strip receiving groove 73 will form a certain positioning and guiding effect on the convex strip structure 11, thereby improving the stability of the convex strip structure 11 when bonding with the cable body 1.

[0034] At the same time, taking the rectangular convex strip structure 111 as an example, refer to the attached Figure 15 and Figure 16 , exhaust cavities 731 are provided at the edge positions on both sides of the contact area between the rectangular convex strip structure 111 and the cable body 1 in the convex strip accommodating groove 73. Since the arc guide block 72 itself contacts the surface of the cable body 1, a certain seal is formed. Therefore, the exhaust cavity 731 is in a relatively sealed state. An exhaust pipe 74 is fixedly installed on the arc guide block 72. The exhaust pipe 74 is connected to the exhaust cavity 731. The exhaust pipe 74 is connected to the exhaust equipment, thereby forming a negative pressure in the exhaust cavity 731. With the help of this negative pressure, a certain adsorption can be formed on the surface of the cable body 1 to avoid excessive depression of the outer sheath 105 of the cable body 1. At the same time, the negative pressure will also promote the discharge of air in the adhesive between the rectangular convex strip structure 111 and the cable body 1, further improving the bonding efficiency of the rectangular convex strip structure 111 and the cable body 1.

[0035] Furthermore, the triangular convex strip structure 112 is hollow inside. If the triangular convex strip structure 112 is squeezed only by the arc guide block 72, the auxiliary pressing effect may be affected by the deformation of the triangular convex strip structure 112 itself. Therefore, in this embodiment, the arc guide block 72 is improved as follows for the triangular convex strip structure 112. For details, refer to the attached manual. Figure 19 A blowing channel 732 is provided in the area of ​​the air hole 1122 of the triangular convex strip structure 112 in the arc guide block 72, and the blowing channel 732 is connected to the blowing pipe 75, and the blowing pipe 75 is connected to the blowing equipment. Therefore, in actual use, air can be blown into the triangular convex strip structure 112 synchronously to increase the air pressure in the unit cavity 1121, thereby improving the auxiliary pressing effect between the triangular convex strip structure 112 and the cable body 1, and further improving the bonding effect.

[0036] It should be noted that, since the auxiliary suppressor 7 needs to move relative to the cable body 1 and the convex strip structure 11, the above structure is allowed to form a small gap and produce air leakage. It is only necessary to ensure that the blowing pressure after vacuuming is large enough to achieve the above effect.

[0037] In the above embodiment, since it is only necessary to control the convex strip feeder 33 to form a relative spiral feed with the cable body 1, the spiral winding of the cable body 1 can be completed. Therefore, in order to facilitate the airflow docking of the above-mentioned exhaust pipe 74 and the blowing pipe 75, the winding rotator 31 can be set stationary to make the cable body 1 spirally advance. However, for some cable bodies 1 with a longer length, it is difficult to control the spiral advancement of the cable body 1. Therefore, this embodiment also provides the following technical solutions. For details, refer to the attached manual. Figure 17 and Figure 18 The interior of the winding rotor 31 is provided with an air flow transfer chamber 313, and a docking channel 314 is provided in the air flow transfer chamber 313, and the docking channel 314 is connected to the exhaust pipe 74. An arc-shaped air guide cover 8 is provided at the bottom of the winding rotor 31, and the arc-shaped air guide cover 8 is fixedly mounted in the rotor bracket 32. The arc-shaped air guide cover 8 slides with the circumferential surface of the winding rotor 31, and a docking pipe 81 is fixedly connected to the arc-shaped air guide cover 8, and the docking pipe 81 is connected to an exhaust device, such as an exhaust pump. The area of ​​the arc-shaped air guide cover 8 corresponding to the winding rotor 31 is set as an opening area, and a sealing structure (such as a sealing gasket) is provided between the edge of the arc-shaped air guide cover 8 and the winding rotor 31, and a plurality of groups of air holes 315 are provided on the circumferential surface of the winding rotor 31, each air hole 315 is connected to the air flow transfer chamber 313, and a one-way valve 316 is provided in the air hole 315.

[0038] Specifically, in actual use, although the rotating device 31 rotates continuously, there are always several air holes 315 located in the arc-shaped air guide cover 8. Under the negative pressure of the arc-shaped air guide cover 8, the one-way valve 316 located in the arc-shaped air guide cover 8 is turned on, thereby forming an air extraction effect on the air flow transfer chamber 313, and the remaining one-way valves 316 are in a closed state and will not leak air. Therefore, on the basis of the continuous rotation of the rotating device 31, an air flow connection is formed to the exhaust pipe 74, thereby forming an exhaust effect on the exhaust cavity 731. Similarly, the blowing connection of the blowing pipe 75 can also adopt the above structure. The difference is that the docking pipe 81 is connected to the blowing equipment, and the corresponding docking channel 314 is connected to the blowing pipe 75.

[0039] Furthermore, for a heavier cable body 1, it is inconvenient to directly pass the cable body 1 through the winding rotator 31. Therefore, the winding rotator 31 can be partially provided with an opening 312, and an opening is also provided in the corresponding area on the rotator bracket 32, so as to facilitate the cable body 1 to be directly pushed into the cable groove 311 from the opening 312. However, under the setting of the opening 312, when the winding rotator 31 rotates, the opening 312 and the arc-shaped air guide cover 8 are docked, forming A large amount of leakage occurs. Therefore, the present invention further provides a sliding blocking baffle 82 in the arc-shaped air guide hood 8. A damping portion 83 (such as a rubber block) is provided at one end of the blocking baffle 82 that is away from the rotation direction of the winding rotator 31. When the damping portion 83 contacts the winding rotator 31, resistance to the blocking baffle 82 is formed. An elastic member, such as a spring, is provided between the blocking baffle 82 and the arc-shaped air guide hood 8. The elastic member is used to provide an elastic force to the blocking baffle 82 that is away from the rotation direction of the winding rotator 31.

[0040] Specifically, when the rotating device 31 rotates normally, the blocking plate 82 compresses the spring in the reverse direction under the damping of the damping part 83. Figure 17 At this time, the blocking partition 82 is located at the right position, the left side of the arc-shaped air guide cover 8 is connected, and is connected to the corresponding air hole 315. When the opening 312 gradually approaches the arc-shaped air guide cover 8, refer to the attached manual. Figure 18When the damping part 83 breaks away from the contact with the winding rotator 31 and begins to reach the opening part 312 area, the damping disappears at this time, and the blocking partition 82 automatically slides to the left to block the left area of ​​the arc-shaped air guide cover 8, thereby preventing leakage at the opening part 312. At the same time, the right area of ​​the arc-shaped air guide cover 8 is connected with the corresponding air hole 315. When the damping part 83 passes the opening part 312, the damping part 83 contacts the winding rotator 31 again, thereby prompting the blocking partition 82 to slide to the right to block the right area of ​​the arc-shaped air guide cover 8. After the left side of the arc-shaped air guide cover 8 is opened, it will gradually connect with the corresponding air hole 315. Therefore, it can be ensured that the arc-shaped air guide cover 8 can be relatively closed with the opening part 312 when passing through the opening part 312, thereby ensuring stable airflow control during the rotation of the winding rotator 31.

[0041] The above-described embodiments merely illustrate several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, and all such variations and improvements fall within the scope of protection of the present invention.

Claims

1. A drag chain cable, comprising a cable body (1) and a drag chain (2), wherein the cable body (1) is arranged in the drag chain (2), and is characterized in that: The drag chain (2) includes multiple groups of cable bodies (1), and the cable bodies (1) are provided with a convex strip structure (11) on the outside. The convex strip structure (11) is a long flexible strip structure, and is used to separate two adjacent cable bodies (1) so that a non-contact area is formed between the two adjacent cable bodies (1). The convex strip structure (11) is spirally wound around the outside of the cable body (1) and bonded by adhesive. The convex strip structure (11) is a triangular convex strip structure (112), and multiple groups of unit cavities (1121) are provided inside the triangular convex strip structure (112). Both side walls of the triangular convex strip structure (112) are provided with air holes (1122) connected to the unit cavities (1121).

2. A method for preparing a drag chain cable according to claim 1, characterized in that: A spiral winding device is used to spirally wind the convex strip structure (11) on the cable body (1), wherein the spiral winding device is composed of a spiral winding machine (3) and a cable tractor (4), wherein the spiral winding machine (3) includes a winding rotator (31), wherein the winding rotator (31) is rotatably arranged in a rotator bracket (32), wherein the winding rotator (31) is provided with a cable groove (311) for allowing the cable body (1) to pass through, wherein the cable tractor (4) is used to drive the cable body (1) to move, and a convex strip feeder (33) is provided on the winding rotator (31) at a position corresponding to the cable tractor (4); The preparation method comprises the following steps: Step 1: Cut the existing long cable to the corresponding length according to the use requirements to form the cable body (1); Step 2: Pass one end of the cable body (1) through the winding rotator (31) of the spiral winding machine (3), and provide the convex strip structure (11) with the help of the convex strip feeder (33), so that the end of the convex strip structure (11) is pre-bonded to the cable body (1); Step 3: The cable body (1) is driven forward by the cable puller (4), and the winding rotator (31) is driven to rotate synchronously, so that the convex strip feeder (33) advances in a spiral relative to the cable body (1), so that the convex strip structure (11) is spirally wound on the cable body (1) and forms a bond; Step 4: After the convex strip structure (11) is wound, the convex strip structure (11) is cut and the cable body (1) is output; Step 5: Install each cable body (1) in the drag chain (2) one by one.

3. A method for preparing a drag chain cable according to claim 2, characterized in that: The convex strip loader (33) is used to load the convex strip structure (11). The convex strip loader (33) is a reel structure rotatably mounted on the winding rotator (31). The convex strip structure (11) is wound and stored on the reel structure. An adhesive layer is provided on the convex strip structure (11).

4. A method for preparing a drag chain cable according to claim 3, characterized in that: The cable tractor (4) is composed of two groups of belt-type conveying structures, which are symmetrically arranged in an upper and lower direction. The belt-type conveying structure includes a conveying belt (41) and a pulley (42). The conveying belt (41) is wound around the pulley (42). Under the support of the pulley (42), the conveying belt (41) forms a conveying contact portion. An elastic squeezer (43) is also provided in the inner area of ​​the conveying belt (41). The elastic squeezer (43) includes a pressure plate (431) and an elastic support member (432). The pressure plate (431) is provided in the conveying contact portion area corresponding to the conveying belt (41). The elastic support member (432) is used to provide an elastic force to the pressure plate (431) to squeeze the conveying belt (41).

5. A method for preparing a drag chain cable according to claim 4, characterized in that: An anti-support device (6) and an auxiliary suppressor (7) are also installed at one end of the winding rotator (31) corresponding to the convex strip feeder (33). The auxiliary suppressor (7) is arranged near the area where the convex strip structure (11) and the cable body (1) initially contact each other. The anti-support device (6) is arranged on the opposite side of the auxiliary suppressor (7). The anti-support device (6) is a roller structure, and the roller frame of the roller is fixedly installed on the winding rotator (31). The roller is a smooth structure and contacts the cable body (1).

6. A method for preparing a drag chain cable according to claim 5, characterized in that: The auxiliary suppressor (7) includes a pressing frame (71), the pressing frame (71) is fixedly mounted on the winding rotator (31) via a connecting frame, an arc-shaped guide block (72) is fixedly mounted on the pressing frame (71), a convex strip receiving groove (73) is provided in the arc-shaped guide block (72), and the convex strip receiving groove (73) is adapted to the convex strip structure (11) spirally wound on the cable body (1).

7. A method for preparing a drag chain cable according to claim 6, characterized in that: An exhaust cavity (731) is provided at both side edge positions of the contact area between the convex strip structure (11) and the cable body (1) in the convex strip receiving groove (73), an exhaust pipe (74) is fixedly installed on the arc-shaped guide block (72), the exhaust pipe (74) is communicated with the exhaust cavity (731), the exhaust pipe (74) is connected to the exhaust device, and an air blowing channel (732) is provided in the area of ​​the air vent (1122) corresponding to the triangular convex strip structure (112) in the arc-shaped guide block (72), the air blowing channel (732) is connected to the air blowing pipe (75), and the air blowing pipe (75) is connected to the air blowing device.

8. A method for preparing a drag chain cable according to claim 7, characterized in that: An airflow transfer chamber (313) is provided inside the winding rotator (31), a docking channel (314) is provided in the airflow transfer chamber (313), and the docking channel (314) is communicated with the exhaust pipe (74). An arc-shaped air guide cover (8) is provided at the bottom of the winding rotator (31), and the arc-shaped air guide cover (8) is fixedly installed in the rotator bracket (32). The arc-shaped air guide cover (8) is slidably matched with the circumferential surface of the winding rotator (31), and the arc-shaped air guide cover (8) is fixed on the rotator bracket (32). A butt joint (81) is fixedly connected, and the butt joint (81) is connected to the air extraction device. The area of ​​the arc-shaped air guide cover (8) corresponding to the winding rotor (31) is set as an opening area, and a sealing structure is provided between the edge of the arc-shaped air guide cover (8) and the winding rotor (31). A plurality of groups of air holes (315) are provided on the circumferential surface of the winding rotor (31), and each of the air holes (315) is communicated with the air flow transfer chamber (313). A one-way valve (316) is provided in the air hole (315).

9. A method for preparing a drag chain cable according to claim 8, characterized in that: An opening portion (312) is provided on the winding rotator (31), and a blocking partition (82) is slidably provided in the arc-shaped air guide cover (8). A damping portion (83) is provided at one end of the blocking partition (82) that deviates from the rotation direction of the winding rotator (31). When the damping portion (83) contacts the winding rotator (31), resistance to the blocking partition (82) is formed, and an elastic member is provided between the blocking partition (82) and the arc-shaped air guide cover (8), and the elastic member is used to provide an elastic force to the blocking partition (82) that deviates from the rotation direction of the winding rotator (31).

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