Stranding machine for cable production

Abstract

The utility model discloses a stranding machine for cable production, and belongs to the technical field of cable production, the stranding machine comprises a housing, a first furling disc, a second furling disc, a third furling disc and a stranding cylinder, the housing is internally provided with an accommodating cavity, the accommodating cavity forms two through ports on the housing, and the first furling disc, the second furling disc, the third furling disc and the stranding cylinder are arranged in the housing. The first furling disc, the second furling disc, the third furling disc and the wire twisting barrel are sequentially arranged in the containing cavity in sequence, and a cable core of a cable sequentially penetrates through the first furling disc, the second furling disc, the third furling disc and the wire twisting barrel and is respectively located at a first furling position, a second furling position, a third furling position and a fourth furling position. Compared with the prior art, the cable folding device has the advantages that through the formed first folding position, the second folding position, the third folding position and the fourth folding position, gradual folding in the cable twisting process is achieved, and folding of each stage can bear the deformation stretching amount of part of cable cores; therefore, the peak stress is reduced, and the problems of wire core surface scratch and metal fatigue are effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of cable production technology, specifically to a stranding machine for cable production. Background Technology

[0002] In modern cable manufacturing processes, core stranding is a crucial step that determines the mechanical properties of cables. By orderly stranding multiple independent cores, the tensile strength, bending resistance, and vibration resistance of cables can be significantly improved, thereby meeting the needs of use under complex working conditions. In current industrial production, mainstream stranding equipment typically uses a rigid sleeve with a fixed aperture as the gathering structure. Multiple cores are simultaneously inserted into the sleeve via a guiding device, and under traction tension, they complete the initial stranding to form a cable core bundle.

[0003] However, the drawback of this traditional coiling structure is that the single sleeve diameter forces multiple wires to make large-scale angular adjustments and spatial convergence in an instant, resulting in extremely high instantaneous stress on the surface of the wires. This easily leads to mechanical damage such as surface scratches and micro-cracks. At the same time, the high-frequency stress concentration accelerates the accumulation of metal fatigue, thereby reducing the service life of the wires. Utility Model Content

[0004] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a stranding machine for cable production, which solves the problem of increased peak stress caused by the single stranding structure in the prior art when stranding the wire core.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The present invention provides a stranding machine for cable production, comprising: a housing with a cavity, wherein the cavity forms two through openings on the housing; a first gathering reel, a second gathering reel, a third gathering reel, and a stranding drum arranged sequentially within the cavity; wherein the core of the cable passes through the first gathering reel, the second gathering reel, the third gathering reel, and the stranding drum in sequence, and respectively forms a first gathering position, a second gathering position, a third gathering position, and a fourth gathering position.

[0006] Optionally, the cavity has a first through-hole and a second through-hole, the diameter of the first through-hole being larger than that of the second through-hole, and the stranded bobbin being located within the first through-hole.

[0007] Optionally, the first gathering reel, the second gathering reel, and the third gathering reel are connected to the cavity via bearings, and the stranded drum is fixedly connected to the cavity.

[0008] Optionally, the diameters of the first, second, and third gathering discs decrease sequentially, and the first, second, and third gathering discs are respectively provided with a plurality of first gathering holes, second gathering holes, and third gathering holes; the winding drum is provided with winding holes.

[0009] Optionally, the core of the cable passes through the first gathering hole, the second gathering hole, the third gathering hole and the twisting hole in sequence, forming the first gathering position, the second gathering position, the third gathering position and the fourth gathering position respectively.

[0010] Optionally, an adjustment disc is provided on the outer side of the housing near the first retracting disc, and the cable core passes through the adjustment disc to form a fifth retracting position.

[0011] Optionally, the adjusting disc includes a rotating part and a fixed part rotatably disposed outside the rotating part. A rotating shaft is fixedly connected to the rotating axis of the rotating part. One end of the rotating shaft is fixedly connected to the rotating axes of the first gathering disc, the second gathering disc, and the third gathering disc, respectively, and the other end of the rotating shaft is connected to a rotation drive mechanism.

[0012] Optionally, a plurality of adjusting sleeves are rotatably connected to the rotating part, and the core of the cable passes through the adjusting sleeves to form a fifth retracted position.

[0013] Optionally, the rotating part is rotatably connected to the adjusting sleeve via a rotating rod, and bolts for fastening are provided at the hinge points of the rotating part, the adjusting sleeve, and the rotating rod.

[0014] Optionally, the fixing part is rotatably connected to a plurality of lead screws on the side near the first gathering plate, the lead screws having a crank and being threaded onto the outer casing.

[0015] The beneficial effects of this utility model are as follows:

[0016] This utility model uses a first gathering reel, a second gathering reel, a third gathering reel, and a stranding drum arranged in sequence to form a first gathering position, a second gathering position, a third gathering position, and a fourth gathering position during the cable stranding process. Each gathering position can bear part of the deformation and stretching of the wire core, thereby reducing peak stress and effectively avoiding scratches on the wire core surface and metal fatigue problems.

[0017] This utility model also includes an adjusting disc rotatably connected to an adjusting sleeve, and uses the adjusting sleeve to pass through the wire core to form a fifth gathering position, thereby further dispersing the deformation and stretching of the wire core, further reducing peak stress, and effectively avoiding scratches on the wire core surface and metal fatigue problems.

[0018] In addition, the aforementioned adjusting sleeve can be adjusted in angle by turning the screw, thereby adjusting the amount of retraction at the fifth retraction position according to different core stranding requirements.

[0019] Finally, the aforementioned adjustment disc can also adjust its distance from the outer casing via a lead screw, thereby making it easier to adjust the amount of coiling according to different core stranding requirements, thus sharing peak stress and effectively avoiding surface scratches and metal fatigue of the core. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the structure of a stranding machine for cable production according to this utility model. Figure 1 .

[0022] Figure 2 This is a partial sectional view of a stranding machine for cable production according to this utility model.

[0023] Figure 3 This utility model relates to a stranding machine for cable production. Figure 1 Enlarged view of point A in the middle.

[0024] Figure 4 This is a schematic diagram of the structure of a stranding machine for cable production according to this utility model. Figure 2 .

[0025] Figure 5 This is a simplified diagram showing the various gathering positions of a stranding machine for cable production according to this utility model.

[0026] Figure 6 A simplified diagram illustrating the coiling position of stranded wires in existing technology.

[0027] Explanation of reference numerals in the attached figures:

[0028] 1. Outer shell; 11. Cavity; 2. First gathering plate; 21. First gathering hole; 3. Second gathering plate; 31. Second gathering hole; 4. Third gathering plate; 41. Third gathering hole; 5. Twisted wire spool; 51. Twisted wire hole; 6. Adjusting plate; 61. Fixing part; 62. Rotating part; 63. Rotating rod; 64. Adjusting sleeve; 7. Lead screw; 8. Rotating shaft. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] As mentioned earlier, the drawback of traditional stranding machines lies in the fact that a single sleeve diameter forces multiple wire cores to undergo significant angular adjustments and spatial convergence instantaneously. Figure 6 As shown, the winding stress of multiple wire cores is concentrated at point e, resulting in extremely high instantaneous stress on the surface of the wire cores. This easily leads to mechanical damage such as surface scratches and microcracks. At the same time, the high-frequency stress concentration accelerates the accumulation of metal fatigue, thereby reducing the service life of the wire cores.

[0031] In view of this, the present invention provides a stranding machine for use in the cable production field, which specifically solves the above-mentioned problems. The present invention solves the problem in the following way.

[0032] Example 1:

[0033] Please refer to the instruction manual appendix. Figure 1-6 As shown in the figure, this embodiment provides a stranding machine for cable production. The stranding machine includes at least a housing 1, which consists of a base, a main housing, and a secondary housing. The main housing is supported on a support surface (e.g., the ground) by the base, and the secondary housing covers the main housing and is connected by a snap-fit, which makes the secondary housing removable, thereby allowing maintenance of the various components inside the housing 1.

[0034] After the secondary shell is fitted onto the main shell, a cavity 11 is formed inside the outer shell 1. This cavity 11 has two through-holes on both sides of the outer shell 1, namely the first through-hole and the second through-hole. The diameter of the first through-hole is larger than the diameter of the second through-hole. Inside the cavity 11, from the first through-hole, the inner wall of the cavity 11 extends layer by layer to the second through-hole, forming three continuously stacked conical spaces and one cylindrical space. The cylindrical space is located at the first through-hole.

[0035] In this first embodiment, as Figure 2As shown, within the three consecutively stacked conical spaces and one cylindrical space, in order from the first through-hole to the second through-hole, the cavity 11 is sequentially equipped with a first gathering disc 2, a second gathering disc 3, a third gathering disc 4, and a stranding drum 5 (the diameters of the first gathering disc 2, the second gathering disc 3, and the third gathering disc 4 decrease sequentially, i.e., the first gathering disc 2 is the largest, and the third gathering disc 4 is the smallest). The first gathering disc 2, the second gathering disc 3, and the third gathering disc 4 are rotatably connected (e.g., connected via bearings) inside the cavity 11, while the stranding drum 5 is fixedly connected within the cylindrical space of the cavity 11. The first gathering disc 2, the second gathering disc 3, and the third gathering disc 4 share the same axis of rotation, which coincides with the axis of rotation of the stranding drum 5.

[0036] In this first embodiment, as Figure 2 As shown, the first gathering reel 2, the second gathering reel 3, and the third gathering reel 4 are respectively provided with a plurality of first gathering holes 21, second gathering holes 31, and third gathering holes 41, and the stranding drum 5 is provided with a stranding hole 51. The cable core passes through the first gathering hole 21, the second gathering hole 31, the third gathering hole 41, and the stranding hole 51 in sequence, forming the first gathering position, the second gathering position, the third gathering position, and the fourth gathering position respectively (e.g., ...). Figure 5 As shown, the first gathering position, the second gathering position, the third gathering position, and the fourth gathering position correspond to respectively Figure 5 Points a, b, c, and d in the diagram.

[0037] Finally, a rotating shaft 8 is provided on the rotation axis of the first gathering reel 2, the second gathering reel 3, and the third gathering reel 4, and is fixed to the three gathering reels. The other end of the rotating shaft 8 is fixed to the rotation drive mechanism. The rotation drive mechanism can be a rotating mechanism driven by a motor and its transmission components, or it can be connected to the wire reel of the stranding machine and rotate synchronously with the wire reel.

[0038] Therefore, in the specific implementation of this embodiment, the operator first passes the cable cores sequentially through the first gathering hole 21, the second gathering hole 31, the third gathering hole 41, and the stranding drum 5, and fixes them to the winding mechanism (e.g., the winding sleeve). Then, the spools carrying the cores are driven to rotate around the shaft 8 while the winding drum is winding the cable bundle. At this time, the cores are affected by the tension of the winding, forming a first gathering position, a second gathering position, a third gathering position, and a fourth gathering position in the aforementioned gathering holes. These four gathering positions bear part of the deformation and tension of the cores, dispersing the stress generated by the cores during the winding process, thereby reducing peak stress and effectively avoiding surface scratches and metal fatigue problems of the cores.

[0039] Example 2:

[0040] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides an embodiment two. For example... Figure 1 , Figure 3 , Figure 5 As shown in this second embodiment, an adjusting disc 6 is provided on the outer side of the outer casing 1 near the first gathering disc 2. The adjusting disc 6 includes a rotating part 62 and a fixed part 61 rotatably disposed (e.g., a bearing) outside the rotating part 62. The rotation axis of the rotating part 62 is also fixedly connected to the rotating shaft 8, which allows the rotating part 62 to rotate synchronously with the first gathering disc 2, the second gathering disc 3, and the third gathering disc 4. A plurality of adjusting sleeves 64 are rotatably connected to the rotating part 62. The core of the cable passes through the adjusting sleeves 64 and forms the fifth gathering position.

[0041] Therefore, in the specific implementation of this embodiment two, the fifth gathering position is used in conjunction with the aforementioned four gathering positions to further disperse the stress generated in the core during the winding process. This reduces peak stress and effectively avoids surface scratches and metal fatigue problems in the core.

[0042] Example 3:

[0043] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides Embodiment Three. For example... Figure 3 As shown in this third embodiment, the rotating part 62 is rotatably connected to the adjusting sleeve 64 via the rotating rod 63. Bolts for fastening are provided at the hinge points of the rotating part 62, the adjusting sleeve 64, and the rotating rod 63. By tightening the bolts, the orientation angle of the adjusting sleeve 64 can be fixed and adjusted, thereby adjusting the closing node and closing force of the aforementioned fifth closing position.

[0044] Example 4:

[0045] Based on the above embodiments, in order to further clarify and completely explain the technical solutions therein, this utility model also provides Embodiment Four. For example... Figure 3 , Figure 4 As shown in this fourth embodiment, a plurality of lead screws 7 are rotatably connected to the side of the fixing part 61 near the first gathering plate 2. The lead screws 7 have crank handles and are threaded onto the outer casing 1. By rotating the crank handles on the lead screws 7, the position of the fixing part 61 relative to the outer casing 1 can be adjusted, thereby further adjusting the gathering node and gathering force of the aforementioned fifth gathering position.

[0046] Therefore, in summary, the cable stranding machine and its embodiments provided by this utility model have the following advantages over the prior art, including but not limited to:

[0047] This utility model uses a first gathering disc 2, a second gathering disc 3, a third gathering disc 4, and a stranding drum 5 arranged in sequence to form a first gathering position, a second gathering position, a third gathering position, and a fourth gathering position during the cable stranding process. Each gathering position can bear part of the deformation and stretching of the wire core, thereby reducing peak stress and effectively avoiding scratches on the wire core surface and metal fatigue problems.

[0048] This utility model also includes an adjusting disc 6 rotatably connected to an adjusting sleeve 64, and uses the adjusting sleeve 64 to pass through the wire core to form a fifth gathering position, thereby further dispersing the deformation and stretching of the wire core, further reducing peak stress and effectively avoiding scratches on the wire core surface and metal fatigue problems.

[0049] In addition, the aforementioned adjusting sleeve 64 can be adjusted in angle by turning the screw, thereby adjusting the amount of retraction at the fifth retraction position according to different core stranding requirements.

[0050] Finally, the aforementioned adjustment disc 6 can also adjust its distance from the outer casing 1 via the lead screw 7, thereby making it easier to adjust the amount of coiling according to different core stranding requirements, thus sharing the peak stress and effectively avoiding surface scratches and metal fatigue of the core.

[0051] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A stranding machine for cable production, characterized in that, include: A shell (1) with a cavity (11) forming two through openings on the shell (1); The first gathering plate (2), the second gathering plate (3), the third gathering plate (4), and the twisted wire drum (5) are arranged in sequence in the cavity (11); The cable core passes through the first coiling reel (2), the second coiling reel (3), the third coiling reel (4), and the stranded drum (5) in sequence, forming the first coiling position, the second coiling position, the third coiling position, and the fourth coiling position respectively.

2. The stranding machine for cable production according to claim 1, characterized in that, The cavity (11) has a first through-hole and a second through-hole, the diameter of the first through-hole is larger than that of the second through-hole, and the stranded spool (5) is located inside the second through-hole.

3. The stranding machine for cable production according to claim 1, characterized in that, The first gathering disc (2), the second gathering disc (3), and the third gathering disc (4) are connected to the cavity (11) by bearings, and the stranded drum (5) is fixedly connected to the cavity (11).

4. A stranding machine for cable production according to claim 1, characterized in that, The diameters of the first gathering plate (2), the second gathering plate (3), and the third gathering plate (4) decrease sequentially. The first gathering plate (2), the second gathering plate (3), and the third gathering plate (4) are respectively provided with a plurality of first gathering holes (21), second gathering holes (31), and third gathering holes (41). The twisted wire drum (5) has a twisted wire hole (51) inside.

5. A stranding machine for cable production according to claim 4, characterized in that, The core of the cable passes through the first gathering hole (21), the second gathering hole (31), the third gathering hole (41) and the twisted wire hole (51) in sequence, forming the first gathering position, the second gathering position, the third gathering position and the fourth gathering position respectively.

6. A stranding machine for cable production according to claim 1, characterized in that, An adjustment disc (6) is provided on the outside of the outer casing (1) near the first gathering disc (2). The core of the cable passes through the adjustment disc (6) and forms the fifth gathering position.

7. A stranding machine for cable production according to claim 6, characterized in that, The adjusting disc (6) includes a rotating part (62) and a fixed part (61) rotatably disposed outside the rotating part (62). A rotating shaft (8) is fixedly connected to the rotating axis of the rotating part (62). One end of the rotating shaft (8) is fixedly connected to the rotating axis of the first gathering disc (2), the second gathering disc (3), and the third gathering disc (4), respectively. The other end of the rotating shaft (8) is connected to the rotation drive mechanism.

8. A stranding machine for cable production according to claim 7, characterized in that, A plurality of adjusting sleeves (64) are rotatably connected to the rotating part (62), and the core of the cable passes through the adjusting sleeves (64) to form a fifth retracting position.

9. A stranding machine for cable production according to claim 7, characterized in that, The rotating part (62) is rotatably connected to the adjusting sleeve (64) via the rotating rod (63). Bolts for fastening are provided at the hinge points of the rotating part (62), the adjusting sleeve (64), and the rotating rod (63).

10. The stranding machine for cable production according to claim 7, characterized in that, The fixing part (61) is rotatably connected to a number of lead screws (7) on the side near the first gathering plate (2). The lead screws (7) are equipped with a crank and are threaded onto the outer shell (1).

Images