Stranding machine tension automatic adjusting device in cable production

Abstract

The invention relates to the technical field of stranding machines, in particular to an automatic tension adjusting device of a stranding machine in cable production. The supports are arranged at the two ends of the output shaft, the rotating disc is arranged in one support, the mounting disc is arranged on the outer wall of the output shaft, the wire coil is arranged on the outer wall of the mounting disc, and the first rotating shaft is arranged in the mounting disc. The first mounting block is arranged on the side, away from the wire coil, of the mounting disc, the second rotating shaft is slidably connected with the first mounting block, and the first mounting block comprises a first sliding groove used for sliding of the second rotating shaft, a first elastic piece arranged on the inner wall of the first sliding groove and a rotating rod arranged on the outer wall of the mounting disc; two ends of the rotating rod can respectively contact with the second rotating shaft and the wire coil; the tension of the cable is adjusted through the acting force and the counter-acting force between the spring and the cable; through the influence of the tension on the spring, the wire defense speed of the wire coil is adjusted through the rotating rod, and the problem that the stranded wire is unqualified due to cable looseness caused by the tension is solved.

Description

Technical Field

[0001] The invention relates to the technical field of wire stranding machines, in particular to an automatic tension regulating device for a wire stranding machine in cable production. Background Art

[0002] The twisted-conductor structure imparts excellent mechanical properties, such as flexibility and good bendability, along with superior electrical properties, including low loss, minimal standing wave, phase consistency, and excellent shielding. This structure is widely adopted. Improving the twisting of the inner conductor is a key technology for improving both the electrical and mechanical properties of cables. The operation of a tubular stranding machine involves continuous rotation and pulling as the copper wires are twisted, forming multiple copper strands that are evenly wrapped around the center conductor.

[0003] Existing stranding machines suffer from inconsistent and uneven tension when paying out each single wire. This results in poor pitch consistency, poor outer diameter uniformity, and an uneven appearance in the final stranded wire. The payout tension varies and is unstable between full and empty stranding drums. The stranding machine's rotational speed also affects the payout rate. Starting and stopping the tubular stranding machine can cause strand skipping and unstable strand pitch, impacting the performance of the cable's internal conductors. Summary of the Invention

[0004] Some simplifications or omissions may be made in this section and the abstract and title of the present application to avoid obscuring the purpose of this section, the abstract and the title of the invention, and such simplifications or omissions shall not be used to limit the scope of the invention.

[0005] In view of the above problems or problems existing in the prior art, the present invention is proposed.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: an automatic tension adjustment device for a stranding machine in cable production, comprising a pay-off assembly, including an output shaft, brackets provided at both ends of the output shaft, a rotating disk provided inside one of the brackets, a mounting disk provided on the outer wall of the output shaft, a wire drum provided on the outer wall of the mounting disk, and a first rotating shaft provided inside the mounting disk; The adjustment component includes a first mounting block arranged on the side of the mounting disk away from the wire drum, a second rotating shaft slidably connected to the first mounting block, the first mounting block includes a first sliding groove for sliding the second rotating shaft, a first elastic member arranged on the inner wall of the first sliding groove, and a rotating rod arranged on the outer wall of the mounting disk, and the two ends of the rotating rod can contact the second rotating shaft and the wire drum respectively.

[0007] As a preferred embodiment of the automatic tension adjustment device for a stranding machine in cable production of the present invention, the outer walls of both ends of the wire drum are provided with toothed discs; A single tooth is slidably provided on the rotating rod near the gear disc, a first sliding rod for sliding the single tooth is provided on the outer wall of the rotating rod, and a second elastic member is sleeved on the outer wall of the first sliding rod.

[0008] As a preferred solution of the automatic tension adjustment device for a stranding machine in cable production of the present invention, two ends of the second rotating shaft are provided with limit blocks that can slide along the inner wall of the first sliding groove.

[0009] As a preferred solution of the automatic tension adjustment device of the stranding machine in cable production of the present invention, wherein: the outer wall of the second rotating shaft is provided with a slide cylinder, the outer wall of the slide cylinder is provided with a second slide groove, a second slide rod is provided for sliding inside the second slide groove, the end of the second slide rod close to the outside is connected to a tray, and the other end of the second slide rod is installed with a sphere.

[0010] As a preferred solution of the automatic tension adjustment device for a stranding machine in cable production of the present invention, a third elastic member is provided between the tray and the outer wall of the slide cylinder.

[0011] As a preferred solution of the automatic tension adjustment device for a stranding machine in cable production of the present invention, a third rotating shaft is slidably provided on the outer wall of the output shaft, and a fourth elastic member is connected between the third rotating shaft and the outer wall of the output shaft.

[0012] As a preferred solution of the automatic tension adjustment device for a stranding machine in cable production of the present invention, a fourth rotating shaft is provided on the outer wall of the output shaft.

[0013] As a preferred solution of the automatic tension adjustment device for a stranding machine in cable production of the present invention, the fourth rotating shaft is higher than the third rotating shaft.

[0014] As a preferred solution of the automatic tension adjustment device for a stranding machine in cable production of the present invention, rollers are rotatably provided on the outer walls of the first rotating shaft, the third rotating shaft and the fourth rotating shaft.

[0015] As a preferred solution of the automatic tension adjustment device for a stranding machine in cable production of the present invention, the fourth rotating shaft is at the same height as the second rotating shaft.

[0016] Beneficial effects of the present invention: The present invention adjusts the tension of the cable through the action and reaction force between the spring and the cable; at the same time, through the influence of the tension on the spring, the anti-line speed of the reel is adjusted by the rotating rod, thereby solving the problem of cable relaxation caused by tension, resulting in unqualified stranded wire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort. Among them: Figure 1 This is the overall three-dimensional diagram of the stranding machine.

[0018] Figure 2 This is a schematic diagram of the wiring component structure.

[0019] Figure 3 for Figure 2 A magnified schematic diagram of the structure of area A in the middle.

[0020] Figure 4 Schematic diagram of the installation disk and surface structure.

[0021] Figure 5 Schematic diagram of the adjustment component structure.

[0022] Figure 6 This is an exploded diagram of the adjustment component structure.

[0023] Figure 7 This is a schematic diagram of the overall structure of the stranding machine. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in various places throughout this specification does not necessarily refer to the same embodiment, nor does it constitute a separate or selective embodiment that is mutually exclusive with other embodiments. Example 1

[0027] Reference Figures 1-3, which is the first embodiment of the present invention, provides an automatic tension adjustment device for a stranding machine in cable production, comprising a pay-off assembly 100, including an output shaft 101, brackets 102 provided at both ends of the output shaft 101, a rotating disk 103 provided inside one of the brackets 102, a mounting disk 104 provided on the outer wall of the output shaft 101, a wire drum 105 provided on the outer wall of the mounting disk 104, and a first rotating shaft 106 provided inside the mounting disk 104; The adjustment assembly 200 includes a first mounting block 201 arranged on the side of the mounting plate 104 away from the wire drum 105, a second rotating shaft 202 slidably connected to the first mounting block 201, the first mounting block 201 includes a first sliding groove 201a for sliding the second rotating shaft 202, a first elastic member 203 arranged on the inner wall of the first sliding groove 201a, and a rotating rod 204 arranged on the outer wall of the mounting plate 104, and the two ends of the rotating rod 204 can contact the second rotating shaft 202 and the wire drum 105 respectively.

[0028] Among them, the output shaft 101 is supported to a certain height by an existing truss, and a driving device is connected to one end of the output shaft 101, which can be directly connected to a driving motor, or the driving motor can mobilize the crawler to drive the output shaft 101 to rotate. This solution is a prior art and will not be described in detail. At the same time, the output shaft 101 is a cylinder, and brackets 102 are installed at both ends of the output shaft 101, and the output shaft 101 and the brackets 102 are rotatably connected. At the same time, the bracket 102 at the end of the output shaft 101 away from the driving motor is fixedly connected to the rotating disk 103, and the rotating disk 103 is rotatably connected to the bracket 102. 103 has a through hole for the cable to pass through, the cable passes through the through hole and is connected to one end of the stranding machine for collection, and the existing technology can be used; the outer wall of the output shaft 101 is fixedly connected to the mounting disk 104, the first rotating shaft 106 is circumferentially distributed inside the mounting disk 104, and the mounting space passes through the mounting disk 104, providing a channel for the cable to pass through the mounting disk 104; it should be noted that this solution has a cable drum 105 installed in an array on one side of the mounting disk 104 close to the drive motor, and the cable drum 105 is a turntable for storing cables, and the existing technology can be used; the adjustment component 200 is installed on the other side of the mounting disk 104.

[0029] The first mounting block 201 is a concave structure, and the second rotating shaft 202 is arranged between the concave inner walls. At the same time, the first mounting block 201 is penetrated by a first sliding groove 201a, and the second rotating shaft 202 can slide along the inner wall of the first sliding groove 201a. At the same time, a first elastic member 203 is arranged on the inner wall of the first sliding groove 201a. The first elastic member 203 can be a compression spring, an elastic member made of a deformable material, an airbag, etc. A deformable elastic member is selected here for easy installation; when the cable is straightened, the second rotating shaft 202 will be pulled to slide along the inside of the first sliding groove 201a, and the first elastic member 203 will be pressurized. If the tension of the cable changes, the first elastic member 203 can adjust the position of the second rotating shaft 202, thereby adjusting the tension of the cable; at the same time, a rotating rod is rotatably installed on the circumferential surface of the mounting plate 104 204, and a torsion spring is provided at the installation location, the purpose of which is to allow one end of the rotating rod 204 close to the second rotating shaft 202 to contact the second rotating shaft 202. When the cable is released, the cable will relax because the inertia drives the wire drum 105 to rotate too fast, and then the pressure on the second rotating shaft 202 will become smaller. The second rotating shaft 202 will be pushed back by the first elastic member 203, and then push the rotating rod 204. The rotating rod 204 rotates along the installation disk 103, and the other end begins to contact the wire drum 105, so that the wire drum 105 contacts the rotating rod 204, and the friction force is used to slow down the rotation of the wire drum 105, thereby slowing down the release of the cable, thereby quickly straightening the cable and increasing the tension. Then the second rotating shaft 202 squeezes the first elastic member 203 again, and the rotating rod 204 separates from the wire drum 105, and the twisting of the wire begins again. Example 2

[0030] Reference Figures 1 to 6 , which is the second embodiment of the present invention, differs from the first embodiment in that: Preferably, the outer walls of both ends of the wire drum 105 are provided with toothed discs 105a; A single tooth 204a is slidably provided on the rotating rod 204 near the toothed disc 105a. A first sliding rod 205 is provided on the outer wall of the rotating rod 204 for the single tooth 204a to slide. A second elastic member 206 is sleeved on the outer wall of the first sliding rod 205.

[0031] Among them, toothed discs 105a are installed on the side surfaces of both ends of the line drum 105. At the same time, a single tooth 204a is slidingly provided at the position of the rotating rod 204 close to the toothed disc 105a on the outer wall of the line drum 105. At the same time, two first sliding rods 205 are fixedly installed on the surface of the rotating rod 204 close to the toothed disc 105a, and the single tooth 204a slides along the outer surface of the first sliding rod 205. At the same time, a second elastic member 206 is provided between the inner wall of the rotating rod 204 and the single tooth 204a. The second elastic member 206 is a compression spring, and the second elastic member 206 is sleeved on the first sliding rod 205. The advantage of this design is that when the line drum 105 rotates, it will drive the toothed disc 105 to rotate. 05a rotates, and when the rotating rod 204 moves toward the wire drum 105, the rotation of the toothed disk 105a will push the single tooth 204a. At the same time, the single tooth 204a will squeeze the second elastic member 206. When the tooth of the toothed disk 105a is disengaged from the single tooth 204a, the second elastic member 206 will reset the single tooth 204a. Then the next tooth of the toothed disk 105a will contact the single tooth 204a and continue to push. In this way, the rotation of the wire drum 105 can be extremely slowed down in the process of pushing the single tooth 204a. At the same time, the second elastic member 206 will have its avoidance effect, so that the wire drum 105 will not be stuck. Compared with slowing down the wire drum 105 by friction, the tension adjustment efficiency will be higher.

[0032] Preferably, both ends of the second rotating shaft 202 are provided with limiting blocks 202a that can slide along the inner wall of the first sliding groove 201a.

[0033] The limit blocks 202a can be detachably installed at both ends of the second rotating shaft 202, for example, by means of screw connection, clamping, etc.; the limit blocks 202a slide along the inner wall of the first sliding groove 201a. The advantage of this design is that the limit blocks 202a do not need to be cylindrical, and the radius of the second rotating shaft 202 is smaller than the cross-section of the limit blocks 202a, so the second rotating shaft 202 can be removed horizontally.

[0034] Preferably, a slide cylinder 207 is sleeved on the outer wall of the second rotating shaft 202, a second slide groove 207a is provided on the outer wall of the slide cylinder 207, a second slide rod 208 is slidably provided inside the second slide groove 207a, a tray 208a is connected to one end of the second slide rod 208 close to the outside, and a ball 208b is installed on the other end of the second slide rod 208.

[0035] Among them, the limiting block 202a can be made of a square shape, and its outer wall can slide in contact with the inner wall of the first sliding groove 201a. The advantage of this is that the limiting block 202a causes the second rotating shaft 202 to only slide without rotating. At the same time, in order to realize the cable sliding process, a slide cylinder 207 is provided on the outer wall of the second rotating shaft 202. The slide cylinder 207 passes through multiple second sliding grooves 207a. The second sliding rod 208 slides along the inner wall of the second sliding groove 207a. A tray 208 is fixedly installed on the end of the second sliding rod 208 away from the second rotating shaft 202 a, and the outer surface of the tray 208a is concave with an arc surface to facilitate cable sliding. At the same time, a ball 208b is rotatably mounted on the end of the second slide bar 208 near the second rotating shaft 202, which facilitates the second slide bar 208 to roll along the outer surface of the second rotating shaft 202. A plurality of second slide bars 208 are arranged in an array along the surface of the slide cylinder 207. At the same time, in order to prevent the second slide bars 208 below the slide cylinder 207 from sliding, a protrusion can be provided on the outer wall of the second slide bar 208 inside the slide cylinder to prevent the second slide bar 208 from sliding. The advantage of this design is that the cable presses against the surface of the tray 208a, and then presses the second slide bar 208, pushing the second slide bar 208 to press against the second rotating shaft 202, pushing the second rotating shaft 202 to slide along the inside of the first slide groove 201a, without the second rotating shaft 202 rotating. This facilitates the installation of the first elastic member 203. If the second rotating shaft 202 also rotates, the first elastic member 203 will wear out, making it inconvenient to use.

[0036] Preferably, a third elastic member 209 is provided between the tray 208 a and the outer wall of the slide cylinder 207 .

[0037] The third elastic member 209 is a compression spring. The advantage of this design is that it can allow the tray 208a to maintain a certain height without being squeezed. At the same time, it can avoid the situation where the third elastic member 209 adjusts the height of the tray 208a when fine-tuning the tension, thereby adjusting the tension of the cable, without affecting the first elastic member 203 or adjusting the position of the rotating rod 204. In this way, the adjustment component 200 can achieve two-level adjustment.

[0038] In summary, the cables on the outer surface of the cable drum 105 are passed under the first rotating shaft 106, through the mounting disk 104, then around the top of the second rotating shaft 202, and then through the rotating disk 103, and then connected to the collection device. The drive motor is then started, driving the output shaft 101 to rotate, which also drives the mounting disk 104 to rotate. The cable end near the collection device does not rotate or rotates in the opposite direction, and multiple cables begin to entangle with each other. Example 3

[0039] Reference Figures 1 to 7, which is the third embodiment of the present invention, is different from the previous two embodiments in that a third rotating shaft 301 is slidably provided on the outer wall of the output shaft 101, and a fourth elastic member 302 is connected between the third rotating shaft 301 and the outer wall of the output shaft 101.

[0040] A fourth rotating shaft 303 is provided on the outer wall of the output shaft 101 .

[0041] The fourth rotation axis 303 is higher than the third rotation axis 301 .

[0042] Rollers are rotatably mounted on the outer walls of the first rotating shaft 106 , the third rotating shaft 301 and the fourth rotating shaft 303 .

[0043] Among them, the outer surface of the output shaft 101 facing the collecting device is slidably installed with the third rotating shaft 301 and fixedly installed with the fourth rotating shaft 303; the third rotating shaft 301 and the output shaft 101 are connected by the fourth elastic member 302; at the same time, the outer walls of the first rotating shaft 106, the third rotating shaft 301 and the fourth rotating shaft 303 are all rotatably provided with rollers, which makes it easier for the cable to move smoothly; at the same time, the height of the fourth rotating shaft 303 from the outer surface of the output shaft 101 is higher than the height of the third rotating shaft 301 from the outer surface of the output shaft 101. The advantage of this design is that the cable extends from the direction of the second rotating shaft 202 to the bottom of the third rotating shaft 301 and continues to the top of the fourth rotating shaft 303, and then passes through the rotating disk 103. The advantage of this design is that during the twisting process of the cable, the path forms two ups and downs, and the cable has two points pulling down and two points pulling up, which provides stability to the cable and reduces tension fluctuations.

[0044] Preferably, the fourth rotating shaft 303 is at the same height as the second rotating shaft 202 .

[0045] The fourth rotating shaft 303 is at the same height as the second rotating shaft 202 and cooperates with the three supporting points of the third rotating shaft 301 to form a V shape. The second rotating shaft 202 and the fourth rotating shaft 303 exert uniform pulling force on the third rotating shaft 301.

[0046] In summary, the cables on the outer surface of the cable drum 105 are passed through the bottom of the first rotating shaft 106, through the mounting plate 106, and then around the top of the second rotating shaft 202. The cables extend from the direction of the second rotating shaft 202 to the bottom of the third rotating shaft 301 and continue to the top of the fourth rotating shaft 303, then pass through the rotating disk 103 and connect to the collection device. Then the drive motor is started to drive the output shaft 101 to rotate, and at the same time drive the mounting plate 104 to rotate, and multiple cables begin to entangle with each other. It is important to note that the configuration and arrangement of the present application as shown in various exemplary embodiments are illustrative only. Although only a few embodiments are described in detail in this disclosure, those reading this disclosure will readily appreciate that numerous modifications are possible without materially departing from the novel teachings and advantages of the subject matter described herein (e.g., variations in mounting arrangement, use of materials, color, orientation, etc.). For example, elements shown as integrally formed may be constructed from multiple parts or components, the positions of components may be inverted or otherwise altered, and the nature, number, or position of discrete components may be modified or changed. Therefore, all such modifications are intended to be encompassed within the scope of this invention. The order or sequence of any process or method steps may be altered or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover structures that perform the functions described herein, and not only structural equivalence but also structural equivalents. Other substitutions, modifications, changes, and omissions may be made in the design, operating conditions, and arrangement of the exemplary embodiments without departing from the scope of this invention. Therefore, the present invention is not limited to a particular embodiment but extends to a variety of modifications that still fall within the scope of the appended claims.

[0047] Additionally, in an effort to provide a concise description of example embodiments, all features of an actual implementation may not be described.

[0048] It should be understood that in the development of any actual embodiment, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0049] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An automatic tension adjustment device for a stranding machine in cable production, characterized by: include, A wire-releasing assembly (100) comprises an output shaft (101), brackets (102) provided at both ends of the output shaft (101), a rotating disk (103) provided inside one of the brackets (102), a mounting disk (104) provided on the outer wall of the output shaft (101), a wire drum (105) provided on the outer wall of the mounting disk (104), and a first rotating shaft (106) provided inside the mounting disk (104); The adjusting assembly (200) includes a first mounting block (201) provided on a side of the mounting plate (104) away from the wire drum (105), a second rotating shaft (202) slidably connected to the first mounting block (201), the first mounting block (201) including a first sliding groove (201a) for sliding the second rotating shaft (202), a first elastic member (203) provided on the inner wall of the first sliding groove (201a), and a rotating rod (204) provided on the outer wall of the mounting plate (104), wherein both ends of the rotating rod (204) can contact the second rotating shaft (202) and the wire drum (105) respectively.

2. The automatic tension adjustment device for a stranding machine in cable production according to claim 1, characterized in that: The outer walls of both ends of the wire drum (105) are provided with toothed disks (105a); The rotating rod (204) is provided with a single tooth (204a) at a position close to the toothed disc (105a) for sliding. The outer wall of the rotating rod (204) is provided with a first sliding rod (205) for the single tooth (204a) to slide. The outer wall of the first sliding rod (205) is provided with a second elastic member (206).

3. The automatic tension adjustment device for a stranding machine in cable production according to claim 2, characterized in that: Limiting blocks (202a) that can slide along the inner wall of the first sliding groove (201a) are provided at both ends of the second rotating shaft (202).

4. The automatic tension adjustment device for a stranding machine in cable production according to claim 3, characterized in that: The outer wall of the second rotating shaft (202) is provided with a slide cylinder (207), the outer wall of the slide cylinder (207) is provided with a second slide groove (207a), a second slide rod (208) is provided inside the second slide groove (207a), one end of the second slide rod (208) close to the outside is connected to a tray (208a), and the other end of the second slide rod (208) is installed with a ball (208b).

5. The automatic tension adjustment device for a stranding machine in cable production according to claim 4, characterized in that: A third elastic member (209) is provided between the tray (208a) and the outer wall of the slide cylinder (207).

6. The automatic tension adjustment device for a stranding machine in cable production according to any one of claims 1 to 5, characterized in that: A third rotating shaft (301) is slidably provided on the outer wall of the output shaft (101), and a fourth elastic member (302) is connected between the third rotating shaft (301) and the outer wall of the output shaft (101).

7. The automatic tension adjustment device for a stranding machine in cable production according to claim 6, characterized in that: A fourth rotating shaft (303) is provided on the outer wall of the output shaft (101).

8. The automatic tension adjustment device for a stranding machine in cable production according to claim 7, characterized in that: The fourth rotating shaft (303) is higher than the third rotating shaft (301).

9. The automatic tension adjustment device for a stranding machine in cable production according to claim 8, characterized in that: Rollers are rotatably provided on the outer walls of the first rotating shaft (106), the third rotating shaft (301) and the fourth rotating shaft (303).

10. The automatic tension adjustment device for a stranding machine in cable production according to claim 9, characterized in that: The fourth rotating shaft (303) is at the same height as the second rotating shaft (202).

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