A drag chain cable and its manufacturing method

Abstract

This invention discloses a drag chain cable and its manufacturing method, specifically relating to the field of cable technology. The drag chain cable includes a cable body and a drag chain. The cable body has a raised strip structure on its exterior. This raised strip structure is a long, flexible structure used to separate adjacent cable bodies, creating a non-contact area between them. The raised strip structure is spirally wound around the exterior of the cable body and bonded with adhesive. The raised strip structure is triangular. By incorporating the raised strip structure on the exterior of the cable body, this invention ensures a large area of ​​non-contact between adjacent cable bodies. Therefore, even in harsh environments, if the outer surface of the cable body is covered with hard particles such as sand and dust, it will not be compressed by the two cable bodies, thus providing effective isolation and protection for the cable body and further ensuring the safe use of the drag chain cable.

Description

Technical Field

[0001] This invention relates to the field of cable technology, and more specifically, to a drag chain cable and its manufacturing method. Background Technology

[0002] A cable chain cable is a special flexible cable designed for use in reciprocating motion and highly dynamic bending environments. It is typically installed in a cable chain to provide power, signals, or data transmission to mobile devices.

[0003] For some large machines, and due to space constraints, multiple cables are often installed in a single cable chain to make full use of the space. In order to ensure that the cables have enough bending space, it is not advisable to use too many clamps or other structures to fix the cables in the cable chain, so as to ensure that the cables have enough room to move in the bending area during use, especially during bending.

[0004] In outdoor or mining applications, cable carriers not only face frequent bending but also harsh environments such as high temperatures and dust. Although some sealed cable carriers can provide some protection, due to their constant reciprocating motion, hard particles such as sand and dust can still enter the carrier during actual use. Because there are many cables inside the carrier, adjacent cables are prone to contact during movement, especially during bending, resulting in compression and friction. The presence of hard particles can cause scratches and wear between adjacent cables. Under long-term use, this can easily damage the outer sheath of the cable, thus reducing the service life of the cable carrier. Summary of the Invention

[0005] The present invention provides a drag chain cable and its manufacturing method, which aims to solve the problem that: in the actual use of existing drag chain cables, some hard particles will adhere to the cable, and adjacent cables will easily come into contact with each other, forming compression and friction, which will then cause scratches and wear between adjacent cables.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a drag chain cable, comprising a cable body and a drag chain, wherein the cable body is disposed within the drag chain, and multiple sets of cable bodies are disposed within the drag chain; the cable body is provided with a raised strip structure on its exterior, the raised strip structure being a long, flexible structure; the raised strip structure is used to separate adjacent cable bodies, thereby forming a non-contact area between adjacent cable bodies; the raised strip structure is spirally wound around the exterior of the cable body and bonded by adhesive.

[0007] Preferably, the convex strip structure is a triangular convex strip structure, and the interior of the triangular convex strip structure is provided with multiple sets of unit cavities. Both sides of the triangular convex strip structure are provided with vent holes that communicate with the unit cavities.

[0008] A method for manufacturing a drag chain cable involves using a spiral winding device to spirally wind a convex structure onto the cable body. The spiral winding device consists of a spiral winding machine and a cable puller. The spiral winding machine includes a winding rotator, which is rotatably mounted in a rotator support. The winding rotator has a cable slot for the cable body to pass through. The cable puller is used to drive the cable body to move. A convex feeder is provided on the winding rotator at a position corresponding to the cable puller.

[0009] The preparation method includes the following steps:

[0010] Step 1: Cut the existing long cable to the corresponding length according to the usage requirements to form the cable body;

[0011] Step 2: Pass one end of the cable body through the winding rotator of the spiral winding machine, and use the convex rib feeder to provide the convex rib structure so that the end of the convex rib structure is pre-bonded to the cable body.

[0012] Step 3: Drive the cable body forward using the cable puller and simultaneously drive the rotating device to rotate, so that the convex bar feeder moves forward in a spiral relative to the cable body, so that the convex bar structure spirally wraps around the cable body and forms an adhesion.

[0013] Step 4: After the convex strip structure is wound, cut the convex strip structure and output the cable body;

[0014] Step 5: Install each cable body into the cable chain one by one.

[0015] Preferably, the convex strip feeder is used to feed the convex strip structure. The convex strip feeder is a roller structure rotatably mounted on a winding rotator. The convex strip structure is wound and stored on the roller structure, and an adhesive layer is provided on the convex strip structure.

[0016] Preferably, the cable puller consists of two sets of belt-type conveyor structures, which are arranged symmetrically above and below each other. Each belt-type conveyor structure includes a conveyor belt and a pulley. The conveyor belt is wound around the pulley and, supported by the pulley, forms a conveying contact portion. An elastic squeezer is also provided in the inner area of ​​the conveyor belt. The elastic squeezer includes a pressure plate and an elastic support member. The pressure plate is positioned corresponding to the conveying contact portion area of ​​the conveyor belt, and the elastic support member is used to provide an elastic force to the pressure plate to squeeze the conveyor belt.

[0017] Preferably, a reverse support and an auxiliary presser are also installed at one end of the winding rotary corresponding to the convex bar feeder. The auxiliary presser is located near the area where the convex bar structure initially contacts the cable body, and the reverse support is located on the opposite side of the auxiliary presser. The reverse support is a roller structure, and the roller frame is fixedly installed on the winding rotary. The roller is a smooth structure and contacts the cable body.

[0018] Preferably, the auxiliary pressing device includes a pressing frame, which is fixedly mounted on the winding rotator via a connecting frame. An arc-shaped guide block is fixedly mounted on the pressing frame, and a convex strip receiving groove is provided in the arc-shaped guide block. The convex strip receiving groove is adapted to the convex strip structure spirally wound on the cable body.

[0019] Preferably, an air extraction cavity is provided at both sides of the contact area between the convex structure and the cable body in the convex strip receiving groove. An air extraction pipe is fixedly installed on the arc-shaped guide block. The air extraction pipe is connected to the air extraction cavity and connected to the air extraction equipment. An air blowing channel is provided in the area of ​​the air vent in the arc-shaped guide block corresponding to the triangular convex structure. The air blowing channel is connected to the air blowing pipe and the air blowing pipe is connected to the air blowing equipment.

[0020] Preferably, the interior of the rotating device is provided with an airflow transfer chamber, and the airflow transfer chamber is provided with a docking channel, which is connected to the exhaust pipe. The bottom of the rotating device is provided with an arc-shaped air guide hood, which is fixedly installed in the rotating device bracket. The arc-shaped air guide hood slides with the circumferential surface of the rotating device. A connecting pipe is fixedly connected to the arc-shaped air guide hood, which is connected to the exhaust device. The area of ​​the arc-shaped air guide hood corresponding to the rotating device is set as an open area, and a sealing structure is provided between the edge of the arc-shaped air guide hood and the rotating device. Multiple sets of air holes are provided on the circumferential surface of the rotating device, and each air hole is connected to the airflow transfer chamber. A one-way valve is provided in each air hole.

[0021] Preferably, the rotating device has an opening, and a sealing baffle is slidably disposed in the arc-shaped air guide shroud. A damping part is provided at the end of the sealing baffle that is opposite to the rotation direction of the rotating device. When the damping part contacts the rotating device, it forms a resistance to the sealing baffle. An elastic element is provided between the sealing baffle and the arc-shaped air guide shroud. The elastic element is used to provide a spring force to the sealing baffle that is opposite to the rotation direction of the rotating device.

[0022] The beneficial effects of this invention are as follows:

[0023] 1. After the present invention sets a convex strip structure on the outside of the cable body, when multiple cable bodies are installed in the cable chain, even if two adjacent cable bodies are too close, the convex strip structure will block them, so that a large area between the two adjacent cable bodies will not form contact. Therefore, in harsh environments, even if the outer surface of the cable body is covered with hard particles such as sand and dust, it will not be squeezed by the two cable bodies, thus forming an effective isolation and protection for the cable body. Especially in high heat generation scenarios, the presence of the convex strip structure allows a certain gap to be maintained between each cable body, thus enabling the cable chain cable to dissipate heat effectively and further protecting the safety of the cable chain cable in use.

[0024] 2. By selecting a triangular convex strip structure, when two cable bodies are too close, the other cable body begins to squeeze the triangular convex strip structure, reducing the volume of the unit cavity and squeezing out the air inside through the vent hole. At this time, the airflow formed by the vent hole can blow away hard particles in the surrounding area, reducing the adhesion of hard particles in the contact area of ​​the triangular convex strip structure and further improving the safety of use.

[0025] 3. During the preparation of this invention, a negative pressure is formed in the air extraction cavity. This negative pressure can then be used to form a certain adsorption on the surface of the cable body, preventing excessive depressions in the outer sheath of the cable body. At the same time, this negative pressure also promotes the expulsion of air from the adhesive between the raised strip structure and the cable body, further improving the bonding efficiency between the raised strip structure and the cable body. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the drag chain cable of the present invention;

[0027] Figure 2 This is a schematic diagram of the distribution structure of multiple cable bodies in the drag chain according to the present invention;

[0028] Figure 3 This is a schematic diagram illustrating the composition of the cable body of the present invention;

[0029] Figure 4 This is a schematic diagram of the overall structure of the rectangular convex strip structure of the present invention;

[0030] Figure 5 This is a schematic diagram of the overall structure of the triangular convex strip structure of the present invention;

[0031] Figure 6 This is a schematic diagram of the internal structure of the triangular convex strip structure of the present invention;

[0032] Figure 7 This is a diagram showing the state when one cable body of the present invention contacts the triangular protrusion structure on the other cable body;

[0033] Figure 8 This is a diagram showing the state when one cable body of the present invention contacts and presses against the triangular protrusion structure on the other cable body;

[0034] Figure 9 This is a flowchart of the method for preparing the drag chain cable of the present invention;

[0035] Figure 10 A schematic diagram of the overall composition of the spiral winding device for preparing drag chain cables according to the present invention;

[0036] Figure 11 This is a state diagram of the spiral winding device when the cable body is wound with a raised strip structure according to the present invention;

[0037] Figure 12 This is a schematic diagram of the structure of the present invention after adding a counterweight and an auxiliary suppressor to the winding rotator;

[0038] Figure 13 This is a state diagram of the arc-shaped guide block assisting in pressing the convex structure according to the present invention;

[0039] Figure 14 This 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 this invention.

[0040] Figure 15 This is a diagram showing the state of the arc-shaped guide block of the present invention when it assists in pressing the rectangular convex strip structure outside the cable body;

[0041] Figure 16 For the present invention Figure 15 Enlarged view of part A in the diagram;

[0042] Figure 17 This is a schematic diagram of the airflow transfer chamber within the rotating device of the present invention;

[0043] Figure 18 This is a diagram showing the state of the sealing partition automatically sealing when the opening of the rotating device gradually enters the arc-shaped air guide hood during the rotation of the present invention.

[0044] Figure 19 This is a diagram showing the state of the arc-shaped guide block of the present invention when it assists in pressing the triangular protrusion structure outside the cable body;

[0045] Figure 20 This is a cross-sectional view of the overall structure of the rotating device of the present invention.

[0046] The attached diagram is labeled as follows: 1. Cable body; 101. Core; 102. Inner sheath; 103. Shielding layer; 104. Armor layer; 105. Outer sheath; 11. Raised bar structure; 111. Rectangular raised bar structure; 112. Triangular raised bar structure; 1121. Unit cavity; 1122. Vent hole; 2. Cable chain; 3. Spiral winding machine; 31. Winding rotator; 311. Cable groove; 312. Opening; 313. Airflow transfer cavity; 314. Connecting channel; 315. Air hole; 316. One-way valve; 32. Rotator bracket; 33. Raised bar feeder; 4. Cable puller; 41. Conveyor belt; 42. Pulley; 43. Elastic extruder; 431. Pressure plate; 432. Elastic support; 5. Cable feeder; 6. Reverse support; 7. Auxiliary presser; 71. Press frame; 72. Arc-shaped guide block; 73. Raised bar receiving groove; 731. Air extraction cavity; 732. Air blowing channel; 74. Air extraction pipe; 75. Air blowing pipe; 8. Arc-shaped air guide cover; 81. Connecting pipe; 82. Sealing partition; 83. Damping part. Detailed Implementation

[0047] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0048] Refer to the instruction manual appendix Figure 1 A drag chain cable includes a cable body 1 and a drag chain 2. The cable body 1 is disposed within the drag chain 2, and multiple sets of cable bodies 1 are located within the drag chain 2. Both the cable body 1 and the drag chain 2 are commonly used cable and drag chain structures in the prior art. Regarding the cable body 1, please refer to the appendix of the specification. Figure 3It mainly consists of a conductor 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 are the basic structures of drag chain cables, this application will not elaborate further. It should be emphasized that in this application, the cable body 1 has a raised strip structure 11 on its exterior, that is, the outer sheath 105 has a raised strip structure 11. The raised strip structure 11 is a long, flexible rubber structure. The raised strip structure 11 is mainly used to separate adjacent cable bodies 1, preventing large-area contact and compression between adjacent cable bodies 1. Multiple sets of raised strip structures 11 can be selected and distributed parallel to the length of the cable body 1, or they can be arranged in a ring shape. The raised strip structures 11 are spaced apart on the cable body 1. Alternatively, one or more raised strip structures 11 can be spirally wound around the outside of the cable body 1. The connection between the cable body 1 and the raised strip structures 11 can be integrally molded or bonded. Integral molding involves improving the extrusion gate structure during the extrusion molding of the outer sheath 105 to directly form the raised strip structures 11 on the outside of the outer sheath 105. However, this method is more difficult to design and more expensive. Therefore, in this invention, a single raised strip structure 11 is used, spirally wound around the outside of the cable body 1 and bonded with adhesive. If the raised strip structure 11 is damaged in the future, it can be re-bonded without replacing the cable body 1.

[0049] Refer to the instruction manual appendix 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 them, so that a large area between the two adjacent cable bodies 1 will not form contact. Therefore, in harsh environments, even if the outer surface of the cable body 1 is covered with hard particles such as sand and dust, it will not be squeezed by the two cable bodies 1, thus forming an effective isolation protection for the cable body 1. Especially in high heat generation scenarios, the presence of the convex strip structure 11 ensures that a certain gap is maintained between each cable body 1, thus allowing the drag chain cable to dissipate heat effectively and further protecting the safety of the drag chain cable in use.

[0050] It should be noted that the main function of the raised 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, referring to the appendix of the instruction manual. Figure 4 The convex structure 11 can be a rectangular convex structure 111 (with a rectangular cross-section), and the rectangular convex structure 111 can be a hollow structure or a solid structure. In addition, the convex structure 11 can also be a semi-circular structure or other shapes.

[0051] Since hard particles may adhere to the surface of the convex structure 11, in order to further reduce the probability of damage to the cable body 1, this embodiment preferably sets the convex structure 11 as a triangular convex structure 112 (with a triangular cross-section). For details, please refer to the appendix of the instruction manual. Figure 5 The bottom edge of the triangular convex structure 112 is glued to the cable body 1, and its edges (i.e. the edges corresponding to the sharp corners) are in contact with the adjacent cable body 1, thereby minimizing the influence area of ​​hard particles attached to the triangular convex structure 112.

[0052] In addition, please refer to the appendix to the instruction manual. Figure 5 and Figure 6 The triangular convex structure 112 is a hollow structure, meaning that multiple unit cavities 1121 are provided inside the triangular convex structure 112. Ventilation holes 1122 communicating with the unit cavities 1121 are provided on both side walls (i.e., the surfaces corresponding to the two hypotenuses) of the triangular convex structure 112. By adopting this design, when two adjacent cable bodies 1 begin to contact, refer to the appendix of the instruction manual. Figure 7 The other cable body 1 preferentially contacts the pointed corner of the triangular convex structure 112. Subsequently, when the two cable bodies 1 are too close together, refer to the appendix of the instruction manual. Figure 8 That is, the other cable body 1 begins to squeeze the triangular protrusion structure 112, reducing the volume of the unit cavity 1121, thereby squeezing the air inside it out through the vent hole 1122. At this time, the airflow formed by the vent hole 1122 can blow away the hard particles in the surrounding area, reducing the adhesion of hard particles in the contact area of ​​the triangular protrusion structure 112, and further improving the safety of use.

[0053] It should be noted that, due to the hollow design of the triangular convex structure 112, the triangular convex structure 112 can undergo multi-directional deformation after contacting another set of cable bodies 1. In other words, when the two cable bodies 1 contact and are squeezed, they can also generate a certain amount of irregular mutual movement. Since the triangular convex 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 convex structure 112 itself.

[0054] In the above embodiments, since the cable body 1 and the drag chain 2 can both adopt existing technologies, the main production and preparation scheme of the cable body 1 can also directly use common schemes. Therefore, the preparation of the cable body 1 is not explained in detail in this invention. However, since the main difference in this invention is that the cable body 1 is provided with a raised strip structure 11, this embodiment also provides a preparation method for spirally winding the raised strip structure 11 onto the cable body 1. The main method is to use a spiral winding device to spirally wind the raised strip structure 11 onto the cable body 1 and to adhere the raised strip structure 11 onto the cable body 1 with adhesive.

[0055] For details, please refer to the instruction manual appendix. Figure 9 The above preparation method includes the following steps:

[0056] Step 1: Cut the existing long cable to the corresponding length according to the usage requirements to form the cable body 1;

[0057] 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 structure 11 with the help of the convex feeder 33, so that the end of the convex structure 11 is pre-bonded to the cable body 1.

[0058] Step 3: Drive the cable body 1 forward by the cable puller 4 and simultaneously drive the rotating device 31 to rotate, so that the convex bar feeder 33 forms a spiral advance relative to the cable body 1, thereby causing the convex bar structure 11 to spirally wrap around the cable body 1 and form an adhesion.

[0059] Step 4: After the convex strip structure 11 is wound to the specified length, cut the convex strip structure 11 and output the complete cable body 1;

[0060] Step 5: Install each cable body 1 into the cable chain 2 one by one according to the installation position to form a complete cable chain.

[0061] In the above preparation method, the spiral winding device consists of a spiral winding machine 3 and a cable puller 4, as detailed in the appendix of the instruction manual. Figure 10 and Figure 11 The spiral winding machine 3 includes a winding rotator 31, which is rotatably mounted in a rotator support 32. The rotator support 32 contains a rotation drive assembly (e.g., a combination of a motor and gears) for driving the winding rotator 31 to rotate. The winding rotator 31 has a cable passage 311 for the cable body 1 to pass through. (Refer to the attached instruction manual.) Figure 20The main body of the winding rotator 31 is a cylindrical structure. A groove is formed in the cylindrical structure, running radially and penetrating axially through the winding rotator 31, to form a cable passage groove 311. Both ends of the winding rotator 31 extend out of the rotator bracket 32, forming exposed portions outside the rotator bracket 32. The cable puller 4 drives the cable body 1 forward, thereby creating movement relative to the winding rotator 31. A convex bar feeder 33 is provided on the winding rotator 31 at a position corresponding to the cable puller 4. The convex bar feeder 33 is used to feed the convex bar structure 11. Specifically, the convex bar feeder 33 can be rotatably mounted on the winding rotator 31. The rotating device 31 has a drum structure on which the convex strip structure 11 is wound and stored. The convex strip structure 11 has its own adhesive layer, or a separate adhesive application device is set up to apply adhesive to the convex strip structure 11. After the cable body 1 passes through the rotating device 31, the convex strip structure 11 is bonded to the cable body 1. Then, the cable body 1 is driven forward by the cable puller 4, which synchronously drives the rotating device 31 to rotate. This causes the convex strip feeder 33 to form a relative spiral trajectory with the cable body 1, so that the convex strip structure 11 spirally winds around the cable body 1 and forms an adhesive bond, thus producing a cable body 1 with the convex strip structure 11.

[0062] To ensure the smooth entry of the cable body 1 into the winding rotator 31, a cable feeder 5 can be installed on the side of the spiral winding machine 3 away from the cable puller 4. The cable feeder 5 guides and conveys the mechanical energy of the convex structure 11. The spiral winding machine 3, cable puller 4, and cable feeder 5 are mounted on the same base. While a drive-driven guide wheel structure can be used for the cable puller 4 and cable feeder 5, the guide wheel is prone to undulation and bumping during use due to the convex structure 11 on the outside of the cable body 1. In severe cases, this can even affect the adhesion of the convex structure 11. To address the issue of adhesive not yet curing, this embodiment provides the following technical solution: Specifically, the cable puller 4 consists of two sets of belt-type conveyor structures, symmetrically arranged vertically. Each belt-type conveyor structure includes a conveyor belt 41 and a pulley 42. The conveyor belt 41 is wound around the pulley 42, and with the support of the pulley 42, the conveyor belt 41 forms a conveying contact portion of a certain length. The cable body 1 moves forward within the conveying contact portion of the two sets of belt-type conveyor structures, following the movement of the conveyor belt 41, thereby creating a strong traction on the cable body 1. Furthermore, the conveyor 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 structure 11, preventing accidental damage to the convex structure 11 and improving traction safety.

[0063] Meanwhile, an elastic extruder 43 is also provided on the inner side of the conveyor belt 41. The elastic extruder 43 includes a pressure plate 431 and an elastic support 432. The pressure plate 431 is provided in the conveying contact area of ​​the conveyor belt 41. The elastic support 432 consists of a housing and a slide rod. The slide rod is slidably installed in the housing, and the pressure plate 431 is fixedly installed on the slide rod. An elastic element, such as a spring, is provided in the housing. The spring is used to provide a spring force to the pressure plate 431 to press against the conveyor belt 41. In actual use, this can further improve the conveying effect of the cable body 1. The pulley 42 and the elastic extruder 43 can be installed on the same support frame, and the support frame can be fixedly installed on the machine base. At the same time, the cable feeder 5 can also adopt the same structure as the cable puller 4 to form a feeding and conveying of the cable body 1, ensuring that the cable body 1 can pass smoothly through the winding rotary device 31.

[0064] It should be noted that since the cable body 1 is suspended after passing through the cable groove 311, and the protruding strip structure 11 continuously contacts the cable body 1, it will cause some interference to the cable body 1. Although the actual positional accuracy of the protruding strip structure 11 on the cable body 1 is not required, if the bonding pressure between the protruding strip structure 11 and the cable body 1 is insufficient during the initial bonding, it will affect the bonding quality of the protruding strip structure 11. Therefore, this embodiment also provides the following technical solutions, which are detailed in the appendix to the specification. Figure 12 A counter-support 6 and an auxiliary presser 7 are also installed at one end of the rotating device 31 corresponding to the convex strip feeder 33. The auxiliary presser 7 is set close to the area where the convex strip structure 11 initially contacts the cable body 1. That is, as the cable body 1 moves forward and the auxiliary presser 7 rotates synchronously with the rotating device 31, the auxiliary presser 7 is always set in the area where the convex strip structure 11 has just adhered to the cable body 1, forming a squeeze on the convex strip structure 11. The counter-support 6 is set on the opposite side of the auxiliary presser 7, and is distributed on both sides of the cable body 1. The area of ​​the cable body 1 corresponding to the counter-support 6 does not have the convex strip structure 11. Therefore, the counter-support 6 can directly contact the cable body 1, forming a support for the cable body 1. The auxiliary presser 7, in conjunction with the support of the counter-support 6, squeezes the part of the convex strip structure 11 that has just adhered to the cable body 1, forming an auxiliary press on the convex strip structure 11, and promoting the full adhesion of the adhesive of the convex strip structure 11.

[0065] Both the anti-reverse device 6 and the auxiliary pressing device 7 can adopt a roller structure, and the roller frame of the roller is directly fixedly installed on the winding rotating device 31. For example, the anti-reverse device 6 includes two rollers that contact the cable body 1, and the auxiliary pressing device 7 includes one roller that contacts the convex structure 11, so as to achieve the above-mentioned support when rotating around the winding rotating device 31. The rollers are smooth structures, so that when the cable body 1 moves forward relative to the winding rotating device 31, it will not form a large friction with the rollers.

[0066] In the above embodiments, since both the outer sheath 105 and the raised strip structure 11 of the cable body 1 have a certain degree of flexibility, when the roller is used as an auxiliary pressing device 7 to directly press the raised strip structure 11, the outer sheath 105 will be pressed simultaneously, which will cause the actual bonding surface to deform to a certain extent, thus affecting the bonding quality. Moreover, the resistance of the roller on the raised strip structure 11 along the length direction of the cable body 1 can also easily cause the raised strip structure 11 to form a certain degree of misalignment and slippage on the cable body 1. Therefore, this embodiment also provides another auxiliary pressing device 7. For details, please refer to the appendix of the specification. Figure 13 and Figure 14 The auxiliary pressing device 7 includes a pressing frame 71, which 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. The arc-shaped guide block 72 is a spiral-structured cutting structure, and its actual trajectory is an arc-shaped trajectory identical to the spiral line of the winding trajectory of the convex strip structure 11. In other words, the arc-shaped guide block 72 can tightly 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-shaped guide block 72... The guide block 72 is provided with a convex strip receiving groove 73, which 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 with the winding rotator 31. After the convex strip structure 11 contacts the cable body 1, it enters the convex strip receiving groove 73. Therefore, the convex strip receiving groove 73 will form a certain positioning and guiding effect on the convex strip structure 11, improving the stability of the convex strip structure 11 when it is bonded to the cable body 1.

[0067] Meanwhile, taking the rectangular convex strip structure 111 as an example, refer to the appendix of the instruction manual. Figure 15 and Figure 16 An air extraction cavity 731 is provided at both edges of the contact area between the rectangular convex structure 111 and the cable body 1 in the convex groove 73. Since the arc-shaped guide block 72 is in contact with the surface of the cable body 1, a certain seal is formed. Therefore, the air extraction cavity 731 is in a relatively sealed state. An air extraction pipe 74 is fixedly installed on the arc-shaped guide block 72. The air extraction pipe 74 is connected to the air extraction cavity 731 and is connected to an air extraction device, thereby forming a negative pressure in the air extraction cavity 731. With the help of this negative pressure, a certain adsorption can be formed on the surface of the cable body 1, avoiding excessive indentation of the outer sheath 105 of the cable body 1. At the same time, this negative pressure will also promote the expulsion of air in the adhesive between the rectangular convex structure 111 and the cable body 1, further improving the bonding efficiency between the rectangular convex structure 111 and the cable body 1.

[0068] Furthermore, regarding the triangular protruding strip structure 112, its interior is hollow. Relying solely on the arc-shaped guide block 72 to compress the triangular protruding strip structure 112 can easily lead to deformation of the triangular protruding strip structure 112 itself, affecting the auxiliary pressing effect. Therefore, this embodiment further improves the arc-shaped guide block 72 for the triangular protruding strip structure 112 as follows, specifically referring to the appendix to the specification. Figure 19 An air blowing channel 732 is provided in the area of ​​the air vent 1122 corresponding to the triangular convex structure 112 in the arc-shaped guide block 72. The air blowing channel 732 is connected to an air blowing pipe 75, which is connected to an air blowing device. In actual use, air can be blown into the triangular convex structure 112 simultaneously to increase the air pressure in the unit cavity 1121, thereby improving the auxiliary pressing effect between the triangular convex structure 112 and the cable body 1, and further improving the bonding effect.

[0069] It should be noted that since the auxiliary presser 7 needs to move relative to the cable body 1 and the convex structure 11, it is permissible for the above structure to have tiny gaps and produce air leakage. It is only necessary to ensure that the blowing pressure after suction is large enough to achieve the above effect.

[0070] In the above embodiments, since the spiral winding of the cable body 1 can be completed simply by controlling the convex feeder 33 to form a relative spiral feed with the cable body 1, in order to facilitate the airflow connection between the above-mentioned suction pipe 74 and the blowing pipe 75, the winding rotator 31 can be set to remain stationary, allowing the cable body 1 to spiral forward. However, for some longer cable bodies 1, controlling the spiral forward movement of the cable body 1 is difficult to achieve. Therefore, this embodiment also provides the following technical solutions, specifically referring to the appendix of the specification. Figure 17 and Figure 18 The rotating device 31 has an airflow transfer chamber 313 inside, and a docking channel 314 is provided in the airflow transfer chamber 313. The docking channel 314 is connected to the air extraction pipe 74. An arc-shaped air guide hood 8 is provided at the bottom of the rotating device 31. The arc-shaped air guide hood 8 is fixedly installed in the rotating device bracket 32. The arc-shaped air guide hood 8 slides with the circumferential surface of the rotating device 31. A connecting pipe 81 is fixedly connected to the arc-shaped air guide hood 8. The connecting pipe 81 is connected to the air extraction device, such as an air pump. The area of ​​the arc-shaped air guide hood 8 corresponding to the rotating device 31 is set as an open area. A sealing structure (such as a sealing gasket) is provided between the edge of the arc-shaped air guide hood 8 and the rotating device 31. Multiple sets of air holes 315 are provided on the circumferential surface of the rotating device 31. Each air hole 315 is connected to the airflow transfer chamber 313. A one-way valve 316 is provided in the air hole 315.

[0071] Specifically, in actual use, although the rotating device 31 rotates continuously, there are always a few air holes 315 located in the arc-shaped air guide shroud 8. Under the negative pressure of the arc-shaped air guide shroud 8, the one-way valves 316 located in the arc-shaped air guide shroud 8 are opened, thereby forming a suction effect on the airflow transfer chamber 313. The other one-way valves 316 are in a closed state and will not leak air. Thus, on the basis that the rotating device 31 can continue to rotate, an airflow connection to the suction pipe 74 is formed, thereby forming a suction effect on the suction cavity 731. Similarly, the air blowing connection of the air blowing pipe 75 can also adopt the above structure. The difference is that the connecting pipe 81 connects to the air blowing device, while the corresponding docking channel 314 connects to the air blowing pipe 75.

[0072] Furthermore, for the heavier cable body 1, directly passing the cable body 1 through the winding rotator 31 would be somewhat inconvenient. Therefore, part of the winding rotator 31 can be provided with an opening 312, and an opening is also provided in the corresponding area on the rotator bracket 32, so as to facilitate pushing the cable body 1 directly into the cable passage 311 from the opening 312. However, with the opening 312 provided, when the winding rotator 31 rotates, when the opening 312 aligns with the arc-shaped air guide 8, it will form To prevent significant leakage, the present invention also includes a slidably disposed sealing baffle 82 within the arc-shaped air guide shroud 8. A damping part 83 (e.g., a rubber block) is disposed at the end of the sealing baffle 82 opposite to the rotation direction of the rotating device 31. When the damping part 83 contacts the rotating device 31, it forms resistance to the sealing baffle 82. An elastic element, such as a spring, is disposed between the sealing baffle 82 and the arc-shaped air guide shroud 8. This elastic element provides a spring force to the sealing baffle 82 opposite to the rotation direction of the rotating device 31.

[0073] Specifically, when the rotating device 31 rotates normally, the blocking partition 82, under the damping of the damping part 83, compresses the spring in the opposite direction, as shown in the instruction manual appendix. Figure 17 At this time, the sealing baffle 82 is located on the right side, and the left side of the arc-shaped air guide hood 8 is open, communicating with the corresponding air hole 315. As the opening 312 gradually approaches the arc-shaped air guide hood 8, refer to the attached instruction manual. Figure 18When the damping part 83 disengages from the contact of the rotating part 31 and begins to reach the area of ​​the opening 312, the damping disappears, and the sealing partition 82 automatically slides to the left to seal the left side of the arc-shaped air guide shroud 8, thereby preventing leakage at the opening 312. At the same time, the right side of the arc-shaped air guide shroud 8 connects with the corresponding air hole 315. When the damping part 83 passes the opening 312, it contacts the rotating part 31 again, causing the sealing partition 82 to slide to the right to seal the right side of the arc-shaped air guide shroud 8. After the left side of the arc-shaped air guide shroud 8 opens, it will gradually connect with the corresponding air hole 315. Therefore, it can be ensured that when the arc-shaped air guide shroud 8 passes the opening 312, it can form a relative seal with the opening 312, thereby ensuring stable airflow control during the rotation of the rotating part 31.

[0074] The embodiments described above are merely examples of several implementations of the present invention, and 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 those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. A method for preparing a drag chain cable, the drag chain cable comprising a cable body (1) and a drag chain (2), the cable body (1) being disposed within the drag chain (2), the drag chain (2) containing multiple sets of cable bodies (1), the cable body (1) having a raised strip structure (11) on its exterior, the raised strip structure (11) being a long strip-shaped flexible structure, the raised strip structure (11) being used to separate adjacent two cable bodies (1) to form a non-contact area between adjacent two cable bodies (1), the raised strip structure (11) being spirally wound around the exterior of the cable body (1) and bonded by adhesive, the raised strip structure (11) being a triangular raised strip structure (112), the triangular raised strip structure (112) having multiple sets of unit cavities (1121) inside, and ventilation holes (1122) communicating with the unit cavities (1121) being provided on both side walls of the triangular raised strip structure (112), characterized in that, The spiral winding device is used to spirally wind the convex structure (11) onto the cable body (1). The spiral winding device consists of a spiral winding machine (3) and a cable puller (4). The spiral winding machine (3) includes a winding rotator (31), which is rotatably mounted in a rotator bracket (32). The winding rotator (31) is provided with a cable groove (311) for the cable body (1) to pass through. The cable puller (4) is used to drive the cable body (1) to move. A convex feeder (33) is provided on the winding rotator (31) at a position corresponding to the cable puller (4). The preparation method includes 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 provide the convex structure (11) with the help of the convex feeder (33), so that the end of the convex structure (11) is pre-bonded to the cable body (1). Step 3: Drive the cable body (1) forward by the cable puller (4) and drive the rotating device (31) to rotate simultaneously, so that the convex feeder (33) forms a spiral forward relative to the cable body (1), so that the convex structure (11) spirally wraps around the cable body (1) and forms an adhesive. Step 4: After the convex strip structure (11) is wound, cut the convex strip structure (11) and output the cable body (1); Step 5: Install each cable body (1) into the cable chain (2) one by one.

2. The method for preparing a drag chain cable according to claim 1, characterized in that: The convex bar feeder (33) is used to feed the convex bar structure (11). The convex bar feeder (33) is a roller structure that is rotatably mounted on a winding rotator (31). The convex bar structure (11) is wound and stored on the roller structure. An adhesive layer is provided on the convex bar structure (11).

3. The method for preparing a drag chain cable according to claim 2, characterized in that: The cable puller (4) consists of two sets of belt conveyor structures, which are arranged symmetrically above and below each other. The belt conveyor structure includes a conveyor belt (41) and a pulley (42). The conveyor belt (41) is wound around the pulley (42). Under the support of the pulley (42), the conveyor belt (41) forms a conveying contact part. 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 corresponding to the conveying contact part area of ​​the conveyor belt (41). The elastic support member (432) is used to provide an elastic force to the pressure plate (431) to squeeze the conveyor belt (41).

4. The method for preparing a drag chain cable according to claim 3, characterized in that: The winding rotator (31) is also equipped with a reverse support (6) and an auxiliary presser (7) at one end corresponding to the convex feeder (33). The auxiliary presser (7) is set near the area where the convex structure (11) initially contacts the cable body (1). The reverse support (6) is set on the opposite side of the auxiliary presser (7). The reverse support (6) is a roller structure, and the roller frame is fixedly installed on the winding rotator (31). The roller is a smooth structure and contacts the cable body (1).

5. The method for preparing a drag chain cable according to claim 4, characterized in that: The auxiliary presser (7) includes a press frame (71), which is fixedly mounted on the winding rotator (31) via a connecting frame. An arc-shaped guide block (72) is fixedly mounted on the press frame (71), and a convex strip receiving groove (73) is provided in the arc-shaped guide block (72). The convex strip receiving groove (73) is adapted to the convex strip structure (11) spirally wound on the cable body (1).

6. The method for preparing a drag chain cable according to claim 5, characterized in that: An air extraction cavity (731) is provided at both sides of the contact area between the convex structure (11) and the cable body (1) in the convex groove (73). An air extraction pipe (74) is fixedly installed on the arc-shaped guide block (72). The air extraction pipe (74) is connected to the air extraction cavity (731). The air extraction pipe (74) is connected to the air extraction device. An air blowing channel (732) is provided in the area of ​​the air vent (1122) of the triangular convex structure (112) in the arc-shaped guide block (72). An air blowing channel (732) is connected to an air blowing pipe (75). The air blowing pipe (75) is connected to the air blowing device.

7. The method for preparing a drag chain cable according to claim 6, characterized in that: The rotating device (31) has an airflow transfer chamber (313) inside, and a docking channel (314) is provided in the airflow transfer chamber (313). The docking channel (314) is connected to the air extraction pipe (74). An arc-shaped air guide hood (8) is provided at the bottom of the rotating device (31). The arc-shaped air guide hood (8) is fixedly installed in the rotating device bracket (32). The arc-shaped air guide hood (8) slides with the circumferential surface of the rotating device (31). The arc-shaped air guide hood (8) is fixed on the upper part of the rotating device (31). A connecting pipe (81) is fixedly connected to the air extraction device. The arc-shaped air guide hood (8) is set as an opening area corresponding to the area around the rotating device (31). A sealing structure is provided between the edge of the arc-shaped air guide hood (8) and the rotating device (31). Multiple sets of air holes (315) are provided on the circumferential surface of the rotating device (31). Each air hole (315) is connected to the air flow transfer chamber (313). A one-way valve (316) is provided in the air hole (315).

8. The method for preparing a drag chain cable according to claim 7, characterized in that: An opening (312) is provided on the winding rotator (31), and a sealing partition (82) is slidably provided in the arc-shaped air guide (8). A damping part (83) is provided at one end of the sealing partition (82) away from the rotation direction of the winding rotator (31). When the damping part (83) contacts the winding rotator (31), it forms a resistance to the sealing partition (82). An elastic element is provided between the sealing partition (82) and the arc-shaped air guide (8). The elastic element is used to provide a spring force to the sealing partition (82) away from the rotation direction of the winding rotator (31).

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