Cable core stranding machine

Abstract

The utility model discloses a cable core stranding machine, relates to the related field of stranding machines, and aims to solve the problems that the tension of a conductive wire among a pay-off drum, a stranding reel and a take-up reel is too large and cannot be adjusted due to the fact that the driving force for stranding the conductive wire comes from the winding traction force of a formed cable core in the prior art. And the problem that the conductive wire is easy to snap to cause partial waste of materials is solved. A rotating interval is formed in the middle of the interior of the upper frame and comprises a pay-off unit, the pay-off unit comprises a middle roller, outer penetrating grooves are formed in the outer surface of the middle roller at equal intervals, pressure adjusting assemblies are arranged on the inner sides of the interiors of the outer penetrating grooves, and the pressure adjusting assemblies comprise fixed vertical rods. A threaded part is formed at the outer end of the outer portion of the fixed vertical rod, an inner threaded ring is connected to the threaded part in an external threaded mode, an upper bowl-shaped piece is slidably connected to the outer portion of the fixed vertical rod along the inner end of the inner threaded ring, and a lower bowl-shaped piece is slidably connected to the outer portion of the fixed vertical rod along the inner end of the upper bowl-shaped piece.

Description

Technical Field

[0001] The utility model relates to the field of wire twisting machines, in particular to a cable core twisting machine. Background Art

[0002] Cable is a wire made of one or more mutually insulated conductors and an outer insulating protective layer. It is laid underground or in the air. It is generally composed of three parts: conductor, insulating layer, and protective layer. There are usually two types of power cables and control cables. Power cables are mainly used for the transmission and distribution of electric energy; control cables are mainly used for measurement, protection, control and other lines. Cables have the characteristics of internal power supply and external insulation.

[0003] The cable core is the conductor, which refers to a wire with multiple mutually insulated core wires in an insulating sheath. The core of the cable core wire is usually made of multiple copper wires, aluminum wires or other conductive wires twisted together. The twisting device includes a wire unwinder and a wire twister. The wire unwinder is used to unwind the conductive wires required for the twisting, and the wire twister is used to twist the conductive wires unwound by the wire unwinder.

[0004] For example, the Chinese authorized patent with announcement number CN 206819808 U (a stranding machine for cable production): including a base, support legs connected to both sides of the lower end of the base, a drive motor connected to the right end of the left support leg, a drive shaft connected to the right end of the drive motor, a driving wheel connected to the right end of the driving shaft, a transmission shaft connected to the right end of the driving wheel, a drive gear connected to the right end of the transmission shaft, a rotating gear meshed with the rear end of the driving gear, a driving pulley connected to the front end of the rotating gear at a coaxial position, a rotating pulley connected to the upper end of the driving pulley through a belt, a take-up reel connected to the coaxial position of the rear end of the rotating pulley, a support frame connected to the left side of the upper end of the base, a stranding shaft connected between the tops of the support frames, a pay-off reel connected to the middle of the stranding shaft, and a fixed frame evenly connected to the outside of the pay-off reel. The utility model allows the cable to be spirally wound after being cabled, avoiding the formation of rebound stress between the cables after gluing, and reducing the deformation between the cable cores and the generation of bending reset deformation force.

[0005] Although the above-mentioned prior art has the function of reducing the deformation between the cable cores and the bending reset deformation force, the driving force for the twisting of the conductive wires comes from the winding traction force of the formed cable core, which makes the tension of the conductive wires between the pay-off drum, the twisting drum and the take-up drum too large and the tension cannot be adjusted. The conductive wires are easily broken, resulting in partial waste of materials. Utility Model Content

[0006] The purpose of the utility model is to provide a cable core twisting machine to solve the problem proposed in the above background technology that the driving force for twisting the conductive wires comes from the winding traction force of the formed cable core, which makes the tension of the conductive wires between the pay-off drum, the twisting drum and the take-up drum too large and the tension cannot be adjusted, and the conductive wires are easily broken, resulting in partial waste of materials.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cable core twisting machine, comprising a support frame, the support frame comprising an upper frame, a rotation interval is formed in the middle of the upper frame, the rotation interval comprises a wire-releasing unit, the wire-releasing unit comprises an intermediate roller, the outer surface of the intermediate roller is provided with outer through grooves at equal intervals, the inner side of the inner part of the outer through groove is provided with a pressure regulating assembly, the pressure regulating assembly comprises a fixed vertical rod, the fixed vertical rod is fixed to the intermediate roller, a threaded portion is formed on the outer end of the fixed vertical rod, an inner thread ring is connected to the outer thread of the threaded portion, an upper bowl-shaped piece is slidably connected to the outer end of the fixed vertical rod along the inner end of the inner thread ring, a lower bowl-shaped piece is slidably connected to the outer end of the upper bowl-shaped piece, a winding area is formed between the upper bowl-shaped piece and the lower bowl-shaped piece on the outer side of the fixed vertical rod, and a pressure spring is provided on the outer side of the fixed vertical rod along the inner end of the lower bowl-shaped piece.

[0008] Preferably, a wire coil limiting structure is provided on the outside of the outer through-groove, and the wire coil limiting structure includes a fixed tube body, which is fixed to the middle roller, a fixed plug is embedded in the outer end of the fixed tube body, and a conductive wire coil is placed outside the fixed tube body along the inner end of the fixed plug.

[0009] Preferably, a wire passing piece is fixed to the middle outer end of the outer through-groove, and a second horizontal wire passing hole is arranged in the wire passing piece.

[0010] Preferably, a fixing pier is fixed in the middle of one side of the upper end of the upper frame, a vertical bracket is welded and fixed to the lower end of the upper frame, and a lower frame is welded and fixed to the outer lower end of the vertical bracket.

[0011] Preferably, a rotating drive motor is installed at the upper end of the lower frame along the lower end of the fixed pier, an active transmission wheel is installed at the output shaft end of the rotating drive motor, a rotating connecting shaft is rotatably connected to the fixed pier through a bearing, and a driven transmission wheel is fixed to the outer end of the rotating connecting shaft.

[0012] Preferably, a lower limit seat is fixed in the middle of the other side of the upper end of the upper frame, a rotating groove is arranged in the lower limit seat, rollers are arranged in a circular array in the rotating groove, a wire drum is rotatably connected in the rotating groove, the other end of the rotating connecting shaft passes through the middle roller and is fixed to the wire drum, a first wire through hole is opened on the wire drum, and the number of the first wire through hole is consistent with the number of the outer through grooves.

[0013] Preferably, a fixed vertical plate is fixed to the middle of the upper end of the upper frame along the outer side of the lower limit seat, a parallel line block is fixed to the upper end of the fixed vertical plate, a through hole groove is provided in the parallel line block, and the inner end surface of the parallel line block is arranged as an arc portion along the line entry direction.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, the internal thread ring is rotated to make it move along the threaded portion, driving the upper bowl-shaped member and the lower bowl-shaped member to move, and the pressure spring is deformed by force; since the conductive wire is rolled up and passes through the second wire hole on the wire-passing member, passes through the winding area and rotates around the fixed vertical pole once before being pulled out, the conductive wire is wound around the outside of the fixed vertical pole and will move due to the movement of the upper bowl-shaped member and the lower bowl-shaped member. When the upper bowl-shaped member and the lower bowl-shaped member move outward as a whole, the reaction force of the pressure spring is small, and the pressure of the upper bowl-shaped member and the lower bowl-shaped member on the conductive wire is small. When the upper bowl-shaped member and the lower bowl-shaped member move inward as a whole, the reaction force of the pressure spring is large, and the pressure of the upper bowl-shaped member and the lower bowl-shaped member on the conductive wire is large, thereby being able to adjust the initial tension of the conductive wire, solving the problem that the driving force for the twisting of the conductive wire comes from the winding traction force of the formed cable core, so that the tension of the conductive wire between the pay-off drum, the stranding drum and the take-up drum may be too large and the tension cannot be adjusted.

[0016] 2. In the utility model, during the twisting process, the connection positions of the conductive wire and the pressure regulating assembly and the connection positions of the conductive wire and the twisting drum are not in the same horizontal plane. Therefore, the conductive wire shrinks toward the rotating connecting axis during the transportation process. Since the conductive wire is wound around the outside of the fixed vertical pole, the lower bowl-shaped part is pressed to move toward the rotating connecting axis, and the pressure spring shrinks, which can not only maintain the tension of the conductive wire, but also avoid excessive tension of the conductive wire. This solves the problem that the conductive wire may be too tense and easily break, resulting in partial waste of materials.

[0017] 3. In the utility model, the fixing plug on the wire roll limiting structure is pulled out, and the middle core of the conductive wire roll is placed outside the fixed tube body, and then the fixing plug is used to limit and fix it. The height of the space formed by the fixing plug and the fixed tube body is slightly larger than the height of the middle core of the conductive wire roll. The middle core of the conductive wire roll can be limited without affecting the rotation of the middle core of the conductive wire roll, making the structure more integrated. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of a cable core twisting machine of the utility model;

[0019] Figure 2 It is a front view of a cable core twisting machine of the utility model;

[0020] Figure 3It is a top view of a cable core twisting machine of the utility model;

[0021] Figure 4 It is a structural schematic diagram of a pay-off unit of a cable core stranding machine of the utility model;

[0022] Figure 5 It is a structural cross-sectional view of a wire coil limiting structure of a cable core stranding machine according to the utility model;

[0023] Figure 6 The utility model is a schematic structural diagram of a pressure regulating assembly of a cable core twisting machine.

[0024] In the figure: 1. support frame; 2. upper frame; 3. vertical support; 4. lower frame; 5. fixed pier; 6. driven transmission wheel; 7. rotating drive motor; 8. active transmission wheel; 9. transmission belt; 10. rotating connecting shaft; 11. fixed vertical plate; 12. parallel wire block; 13. lower limit seat; 14. wire drum; 15. first wire hole; 16. rotating interval; 17. wire release unit; 18. outer through groove; 19. wire coil limit structure; 20. fixed tube body; 21. fixed plug; 22. conductive wire coil; 23. wire pass piece; 24. second wire hole; 25. pressure regulating assembly; 26. fixed vertical pole; 27. threaded part; 28. internal thread ring; 29. ​​upper bowl-shaped part; 30. lower bowl-shaped part; 31. winding area; 32. pressure spring. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figure 1-6 The utility model provides an embodiment: a cable core twisting machine, including a support frame 1, the support frame 1 includes an upper frame 2, a fixed pier 5 is fixed in the middle of one side of the upper end of the upper frame 2, a vertical bracket 3 is welded and fixed to the lower end of the upper frame 2, and a lower frame 4 is welded and fixed to the outer lower end of the vertical bracket 3; a rotating drive motor 7 is installed at the upper end of the lower frame 4 along the lower end of the fixed pier 5, an active transmission wheel 8 is installed at the output shaft end of the rotating drive motor 7, a rotating connecting shaft 10 is rotatably connected to the fixed pier 5 through a bearing, and a driven transmission wheel 6 is fixed to the outer end of the rotating connecting shaft 10.

[0027] A lower limit seat 13 is fixed in the middle of the other side of the upper end of the upper frame 2, and a rotating groove is arranged in the lower limit seat 13. There are rollers in a circular array in the rotating groove. A wire drum 14 is rotatably connected in the rotating groove. The wire drum 14 is provided with a first wire through hole 15, and the number of the first wire through holes 15 is the same as the outer through groove 18.

[0028] A fixed vertical plate 11 is fixed to the middle of the upper end of the upper frame 2 along the outer side of the lower limit seat 13, and a wiring block 12 is fixed to the upper end of the fixed vertical plate 11. The wiring block 12 has a through hole groove. The inner end surface of the wiring block 12 is set to an arc portion along the line input direction to avoid friction between the sharp surface and the conductive wire.

[0029] A rotation section 16 is formed in the middle of the upper frame 2 . The rotation section 16 includes a wire-releasing unit 17 . The wire-releasing unit 17 includes an intermediate roller. The other end of the rotating connecting shaft 10 passes through the intermediate roller and is fixed to the winding drum 14 .

[0030] The outer surface of the intermediate roller is provided with outer through grooves 18 at equal intervals, and the inner side of the outer through grooves 18 is provided with a pressure regulating assembly 25, and the pressure regulating assembly 25 includes a fixed upright rod 26, and the fixed upright rod 26 is fixed to the intermediate roller, and the outer end of the fixed upright rod 26 forms a threaded portion 27, and the outer thread of the threaded portion 27 is connected with an inner threaded ring 28, and the outer end of the fixed upright rod 26 is slidably connected with an upper bowl-shaped member 29 along the inner end of the inner threaded ring 28, and the outer end of the fixed upright rod 26 is slidably connected with a lower bowl-shaped member 30 along the inner end of the upper bowl-shaped member 29, and the upper bowl-shaped member 29 and the lower bowl-shaped member 30 are metal sheets, which are only processed into a bowl shape, so as to reduce the damage to the conductive wire on the basis of realizing the tension regulating function; the outer end of the fixed upright rod 26 is connected with an upper bowl-shaped member 29 along the inner end of the inner threaded ring 28, and the upper bowl-shaped member 29 and the lower bowl-shaped member 30 are metal sheets, which are only processed into a bowl shape, so as to reduce the damage to the conductive wire on the basis of realizing the tension regulating function; A winding area 31 is formed between the upper bowl-shaped member 29 and the lower bowl-shaped member 30. The conductive wire on the conductive wire coil 22 passes through the second wire hole 24 on the wire-passing member 23, passes through the winding area 31, rotates around the fixed vertical pole 26 once, and is then pulled out. The conductive wire is wound around the outside of the fixed vertical pole 26; a pressure spring 32 is provided on the outside of the fixed vertical pole 26 along the inner end of the lower bowl-shaped member 30. When the upper bowl-shaped member 29 and the lower bowl-shaped member 30 move outward as a whole, the reaction force of the pressure spring 32 is small, and the pressure of the upper bowl-shaped member 29 and the lower bowl-shaped member 30 on the conductive wire is small. When the upper bowl-shaped member 29 and the lower bowl-shaped member 30 move inward as a whole, the reaction force of the pressure spring 32 is large, and the pressure of the upper bowl-shaped member 29 and the lower bowl-shaped member 30 on the conductive wire is large.

[0031] A wire coil limiting structure 19 is arranged on the outside of the outer through-groove 18. The wire coil limiting structure 19 includes a fixed tube body 20. The fixed tube body 20 is fixed to the middle roller. A fixed plug 21 is embedded in the outer end of the fixed tube body 20. A conductive wire coil 22 is placed along the inner end of the fixed plug 21 on the outside of the fixed tube body 20. The main purpose is to facilitate the replacement of the conductive wire coil 22 without wasting time and effort. A wire-passing piece 23 is fixed to the outer end of the middle of the outer through-groove 18. A second horizontal wire-passing hole 24 is arranged in the wire-passing piece 23. The main purpose is to pull the conductive wire outside the conductive wire coil 22. During the transportation process, the position of the conductive wire outside the conductive wire coil 22 is not in a fixed position, but within the winding range of the conductive wire coil 22. It directly contacts the pressure regulating component 25, which will cause the conductive wire to jump out of the position on the pressure regulating component 25. Through the setting of the wire-passing piece 23, the position of the conductive wire on the pressure regulating component 25 is relatively stable.

[0032] In order to make the structure clear, the figure only shows one group of conductive wires and their connection structures. In actual work, there are multiple conductive wires and their connection structures.

[0033] Working principle: Pull out the fixing plug 21 on the wire coil limiting structure 19, place the middle core of the conductive wire coil 22 outside the fixed tube body 20, and then use the fixing plug 21 to limit and fix it. Pass the conductive wire on the conductive wire coil 22 through the second wire hole 24 on the wire passing member 23, pass through the winding area 31 and rotate around the fixed vertical pole 26 for one circle, then pull out, pass through the first wire hole 15 on the winch drum 14, and then pass multiple conductive wires through the paralleling block 12, and then connect to the winding mechanism, and the driving structure on the winding mechanism rotates to provide the driving force for transmission.

[0034] The internal thread ring 28 is rotated to make it move along the threaded portion 27, thereby driving the upper bowl-shaped member 29 and the lower bowl-shaped member 30 to move, and the pressure spring 32 is deformed by the force to adjust the initial tension of the conductive wire; the driving motor 7 is rotated to drive the active transmission wheel 8 to rotate, and the driven transmission wheel 6 is driven to rotate through the transmission relationship among the driven transmission wheel 6, the active transmission wheel 8 and the transmission belt 9, and the connecting shaft 10 is rotated to drive the wire winding drum 14 and the wire winding limiting structure 19 to rotate, and multiple conductive wires are twisted, and the twisted conductive wires are wound on the winding mechanism.

[0035] During the twisting process, the connection position between the conductive wire and the pressure regulating assembly 25 and the connection position between the conductive wire and the twisting drum 14 are not in the same horizontal plane. Therefore, the conductive wire shrinks toward the rotating connecting shaft 10 during the transportation process. Because the conductive wire is wound around the outside of the fixed vertical pole 26, the lower bowl-shaped part 30 is pressed to move toward the rotating connecting shaft 10, and the pressure spring 32 shrinks, which can not only maintain the tension of the conductive wire, but also avoid excessive tension in the conductive wire.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A cable core stranding machine, comprising a support frame (1), the support frame (1) comprising an upper frame (2), characterized in that: A rotation zone (16) is formed in the middle of the upper frame (2), the rotation zone (16) includes a wire-releasing unit (17), the wire-releasing unit (17) includes an intermediate roller, the outer surface of the intermediate roller is provided with outer through grooves (18) at equal intervals, the inner side of the outer through grooves (18) is provided with a pressure regulating assembly (25), the pressure regulating assembly (25) includes a fixed vertical rod (26), the fixed vertical rod (26) is fixed to the intermediate roller, the outer end of the fixed vertical rod (26) is formed with a threaded portion (27), The threaded portion (27) is externally threadedly connected to an internal threaded ring (28); the fixed vertical rod (26) is externally slidably connected to an upper bowl-shaped member (29) along the inner end of the internal threaded ring (28); the fixed vertical rod (26) is externally slidably connected to a lower bowl-shaped member (30) along the inner end of the upper bowl-shaped member (29); a winding area (31) is formed between the upper bowl-shaped member (29) and the lower bowl-shaped member (30) along the outer side of the fixed vertical rod (26); and a pressure spring (32) is provided along the inner end of the lower bowl-shaped member (30) along the outer side of the fixed vertical rod (26).

2. A cable core stranding machine according to claim 1, characterized in that: A wire coil limiting structure (19) is arranged on the outside of the outer through groove (18), and the wire coil limiting structure (19) comprises a fixed tube body (20), the fixed tube body (20) is fixed to the middle roller, a fixed plug (21) is embedded in the outer end of the fixed tube body (20), and a conductive wire coil (22) is placed outside the fixed tube body (20) along the inner end of the fixed plug (21).

3. A cable core stranding machine according to claim 1, characterized in that: A wire-passing piece (23) is fixed to the middle outer end of the outer through-groove (18), and a second wire-passing hole (24) in the horizontal direction is arranged in the wire-passing piece (23).

4. A cable core stranding machine according to claim 1, characterized in that: A fixed pier (5) is fixed in the middle of one side of the upper end of the upper frame (2), a vertical bracket (3) is welded and fixed to the lower end of the upper frame (2), and a lower frame (4) is welded and fixed to the outer lower end of the vertical bracket (3).

5. A cable core stranding machine according to claim 4, characterized in that: A rotary drive motor (7) is installed at the upper end of the lower frame (4) along the lower end of the fixed pier (5); an active transmission wheel (8) is installed at the output shaft end of the rotary drive motor (7); a rotary connecting shaft (10) is rotatably connected in the fixed pier (5) via a bearing; a driven transmission wheel (6) is fixed to the outer end of the rotary connecting shaft (10).

6. A cable core stranding machine according to claim 5, characterized in that: A lower limit seat (13) is fixed in the middle of the other side of the upper end of the upper frame (2), a rotating groove is arranged in the lower limit seat (13), a roller is arranged in a circular array in the rotating groove, a capstan (14) is rotatably connected in the rotating groove, the other end of the rotating connecting shaft (10) passes through the middle roller and is fixed to the capstan (14), and a first wire through hole (15) is provided on the capstan (14), and the number of the first wire through hole (15) is the same as that of the outer through groove (18).

7. A cable core stranding machine according to claim 6, characterized in that: A fixed vertical plate (11) is fixed to the middle of the outer side of the lower limit seat (13) along the upper end of the upper frame (2), and a line paralleling block (12) is fixed to the upper end of the fixed vertical plate (11). A through hole groove is provided in the line paralleling block (12), and the inner end surface of the line paralleling block (12) is arranged as an arc portion along the line entry direction.

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