Cable stranding machine

Abstract

The utility model relates to a cable stranding machine, which comprises a stranding device used for stranding a plurality of conductors into a cable core, a take-up device used for rolling the stranded cable core, and a cutting device arranged between the stranding device and the take-up device. The cutting device comprises a fixing seat, a pressing and fixing assembly and a cutting assembly, the pressing and fixing assembly and the fixing seat are oppositely arranged, the pressing and fixing assembly can move in the direction close to or away from the fixing seat, a pressing space for a wire core to pass through is formed between the pressing and fixing assembly and the fixing seat, and the cutting assembly is used for cutting off the wire core. The main purpose of the utility model is to provide a cable stranding machine which can respectively and independently control the pressing or loosening of two end parts of a wire core at a cut-off position, is flexible to control and reliable in structure, and is beneficial to improving the stranding efficiency.

Description

Technical Field

[0001] The utility model relates to cable processing equipment, in particular to a cable stranding machine. Background Art

[0002] During the production and processing of cables, a stranding machine is required to twist multiple single-wire conductors into a strand to form a wire core. The existing cable stranding machine structure generally includes a wire unwinding device, a twisting device, a traction device, and a wire winding device. When the wire core is wound and needs to be rewound, the wire core needs to be cut off, so a cutting device is often added between the traction device and the wire winding device.

[0003] In the prior art, a Chinese patent with publication number CN207611642U discloses a cable twisting device, including a device body, a first motor, a first driving shaft fixedly mounted on one side of the first motor, a first turntable fixedly mounted on one end of the first driving shaft, a plurality of first wire holes provided on the first turntable, wires provided in the first wire holes, a base provided on one side of the first turntable, a roller installed on the upper end of the base, a plurality of cleaning chambers provided on the roller, a second wire hole provided in the middle of the cleaning chamber, a second turntable provided on one side of the roller, a plurality of first wire holes provided on the second turntable, a second driving shaft installed on one side of the second turntable, a second motor installed on one side of the second driving shaft, two opposite bases installed on one side of the second motor, the two opposite bases connected by a knife groove, two push cylinders installed on the upper end of the knife groove, the technical solution can realize fast twisting, and can cut the twisted cable as needed. However, after cutting using the technical solution, the two ends of the split cable are prone to loosening the wires due to back-twisting. If the wires on the side close to the roller are seriously loose, it will affect the normal winding and subsequent processing technology. If the wires on the side close to the twisting turntable are seriously loose, they need to be manually re-bundled and twisted, and then the twisted wires need to be pulled onto the winding roller, which is time-consuming and labor-intensive, and greatly reduces the production and processing efficiency. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the purpose of the utility model is to provide a cable twisting machine which can independently control the tightening or loosening of the two ends of the wire core at the cut position, has flexible operation, reliable structure, and is conducive to improving the twisting efficiency.

[0005] In order to solve the above problems, the technical solutions adopted by the utility model are as follows:

[0006] A cable stranding machine comprises a stranding device for stranding a plurality of conductors into a wire core and a take-up device for winding the twisted wire core, and also comprises a cutting device, wherein the cutting device is arranged between the stranding device and the take-up device, and the cutting device comprises a fixed seat, a pressing assembly and a cutting assembly, wherein the pressing assembly is arranged relative to the fixed seat, the pressing assembly can move in a direction approaching or away from the fixed seat, and a pressing space is provided between the pressing assembly and the fixed seat for the wire core to pass through, and the cutting assembly is used to cut the wire core.

[0007] Further, the pressing assembly includes a lifting seat, a pressing plate and a limiting pressure plate, the lifting seat includes a mounting portion and a limiting portion, the connecting end of the pressing plate is rotatably connected to the mounting portion, the overlapping end of the pressing plate is overlapped on the limiting portion, the limiting pressure plate presses the overlapping end against the limiting portion for limiting, and the limiting pressure plate is slidably connected to the limiting portion, the limiting pressure plate slides on the limiting portion to achieve contact or separation with the overlapping end.

[0008] Furthermore, an open placement groove is provided on the end of the limiting portion close to the pressing plate, and the overlapping end of the pressing plate overlaps the bottom surface of the placement groove. A through groove is penetrated by the end of the limiting portion away from the pressing plate, and the through groove is connected to the placement groove. The limiting pressure plate is slidably connected in the through groove, and one end extends out of the through groove to press against the pressing plate.

[0009] Furthermore, there are two pressing plates spaced side by side, the two pressing plates are arranged on both sides of the cutter of the cutting assembly, and the gap between the two pressing plates allows the cutter of the cutting assembly to pass through.

[0010] Furthermore, an arc-shaped portion is provided in the middle of the pressing plate, and the arc-shaped portion is used to contact the outer surface of the wire core.

[0011] Furthermore, a baffle is convexly provided on the limiting pressure plate, and the top surface of the baffle is higher than the top surface of the through groove. When the limiting pressure plate moves to be separated from the pressing plate, the baffle abuts against the limiting portion.

[0012] Furthermore, one end of the limiting pressing plate away from the pressing plate extends out of the through slot and then bends to form a gripping portion.

[0013] Furthermore, the pressing assembly is controlled to move by a control assembly, and the control assembly is a scissor-type lifting assembly.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: in the utility model, a cutting device is arranged between the wire twisting device and the wire taking-up device for cutting the twisted wire core, and two independently controlled pressing plates are provided on the cutting device, which are respectively used to press the two ends of the wire core at the cutting position to prevent the wire core from being thrown out or loosening; when in use, the pressing limit of the corresponding wire core end can be released as needed, the design is reasonable, the control is flexible, the structure is reliable, and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of a cable stranding machine of the utility model;

[0016] Figure 2 It is a three-dimensional diagram of a cutting device in a cable stranding machine of the utility model;

[0017] Figure 3 It is a side view of a cutting device in a cable stranding machine of the utility model;

[0018] Figure 4 It is a structural schematic diagram of a pressing assembly of a cutting device in a cable stranding machine of the utility model;

[0019] Figure 5 for Figure 4 Schematic diagram of the cross-sectional structure of the middle pressure-solidification component cut along the BB direction;

[0020] Among them, 1. workbench; 11. fixed seat; 2. support frame; 21. track; 3. lifting seat; 31. installation part; 32. limiting part; 321. protrusion; 322. through groove; 323. placement groove; 4. cutting assembly; 41. cutter; 5. control assembly; 6. pressing plate; 61. arc-shaped part; 62. connecting end; 63. overlapping end; 7. limiting pressure plate; 71. baffle; 72. holding part; 8. wire twisting device; 9. wire taking-up device. DETAILED DESCRIPTION

[0021] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] It should be noted that, in the description of the technical solution of the present invention, some directional words used to clearly describe the technical features of the present invention, such as "front", "back", "up", "down", "top", "bottom", "inside", "outside", etc., are all in accordance with the orientation of the drawings of the present invention.

[0023] Example

[0024] like Figure 1As shown, a cable stranding machine of this embodiment includes a stranding device 8 for stranding a plurality of conductors into a core and a take-up device 9 for winding the stranded core, and also includes a cutting device, which is arranged between the stranding device 8 and the take-up device 9. A plurality of conductors are stranded together by the stranding device 8 to form a core, and the core is wound and wound by the take-up device 9 after passing through the cutting device. The stranding device 8 and the take-up device 9 in this embodiment are both structures in the prior art, and therefore, no further description is given here.

[0025] like Figure 2 and Figure 3 As shown, the cutting device includes a fixed seat 11, a pressing assembly and a cutting assembly 4. The fixed seat 11, the pressing assembly and the cutting assembly 4 are all installed on a workbench 1. A support frame 2 is fixed on the workbench 1. A track 21 extending and distributed in the vertical direction is provided on the support frame 2. The cutting assembly 4 is slidably connected to the track 21 and can be freely lifted and lowered along the track 21. The cutting assembly 4 in this embodiment adopts the structure in the prior art and is used to cut the wire core. The pressing assembly of this embodiment is arranged relative to the fixed seat 11. The pressing assembly can move in a direction close to or away from the fixed seat 11. There is a pressing space between the pressing assembly and the fixed seat 11 for the wire core to pass through. Specifically, the pressing assembly can be lifted and lowered above the fixed seat 11 through the control assembly 5.

[0026] like Figure 4 and Figure 5 As shown, the pressing assembly includes a lifting seat 3, a pressing plate 6 and a limiting pressure plate 7. The lifting seat 3 includes a mounting portion 31 and a limiting portion 32. One end of the pressing plate 6 is a connecting end 62, and the other end is a lap end 63. The connecting end 62 of the pressing plate 6 is rotatably connected to the mounting portion 31. Specifically, the connecting end 62 is hinged to the mounting portion 31 through a hinge shaft, and the axis of the hinge shaft is parallel to the axis of the wire core. The lap end 63 of the pressing plate 6 is overlapped on the limiting portion 32, and the limiting pressure plate 7 presses the lap end 63 against the limiting portion 32 for limiting, and the limiting pressure plate 7 is slidably connected to the limiting portion 32, and the limiting pressure plate 7 slides on the limiting portion 32 to achieve contact or separation with the lap end 63. Specifically, an open placement groove 323 is provided on the end of the position-limiting part 32 close to the pressing plate 6, and the overlapping end 63 of the pressing plate 6 overlaps the bottom wall of the placement groove 323. The pressing plate 6 can rotate around the central axis of the hinge shaft of the connecting end 62. A through groove 322 is penetrated on the end of the position-limiting part 32 away from the pressing plate 6. The through groove 322 is connected with the placement groove 323. The cross-sectional size of the through groove 322 matches the cross-sectional size of the position-limiting pressing plate 7. The position-limiting pressing plate 7 is slidably connected in the through groove 322, and one end extends out of the through groove 322 to press against the pressing plate 6.

[0027] The middle part of the pressing plate 6 of this embodiment is provided with an arc-shaped portion 61, and the inner side surface of the arc-shaped portion 61 is an arc-shaped surface, which is used to contact the outer surface of the wire core. Compared with a flat surface, the arc-shaped surface used in this embodiment can increase the contact area with the wire core, thereby increasing the stability and reliability of the pressing. A baffle 71 is convexly provided on the limiting pressing plate 7, and the top surface of the baffle 71 is higher than the top surface of the through groove 322. When the limiting pressing plate 7 moves to be separated from the pressing plate 6, the baffle 71 abuts against the limiting portion 32. This structural design can prevent the limiting pressing plate 7 from moving too far or even falling out of the through groove 322.

[0028] When the limiting pressure plate 7 is pressed against the pressing plate 6, the position of the pressing plate 6 is fixed and can be used to press the wire core. When the limiting pressure plate 7 slides along the through groove 322 in a direction away from the pressing plate 6 until it is separated from the pressing plate 6, the overlapped end 63 of the pressing plate 6 is released from the limiting pressure plate 7, and the pressing plate 6 can rotate around the central axis of the hinge shaft of the connecting end 62.

[0029] In this embodiment, two pressing plates 6 are arranged side by side and spaced apart. The two pressing plates 6 are arranged on both sides of the cutter 41 of the cutting assembly 4. The gap between the two pressing plates 6 allows the cutter 41 of the cutting assembly 4 to pass through. The two pressing plates 6 are used to press and fix the wire cores on both sides of the cutter 41.

[0030] In addition, in this embodiment, one end of the limiting pressure plate 7 away from the pressing plate 6 extends out of the through slot 322 and then bends to form a gripping portion 72, which is convenient for the staff to hold and operate. The tops of the two sides of the placement slot 323 are respectively provided with protrusions 321, and the gap between the two protrusions 321 is smaller than the width of the limiting pressure plate 7. When the limiting pressure plate 7 is pressed against the overlapping end 63 of the pressing plate 6, the two protrusions 321 are also pressed against the limiting pressure plate 7, further improving the reliability of the pressing fixation and reducing the reaction force borne by the limiting pressure plate 7.

[0031] The pressing assembly of the present embodiment is controlled to move by the control assembly 5, and the control assembly 5 is a scissor-type lifting assembly driven by a driving cylinder. The scissor-type lifting assembly is a commonly used technical means in the prior art, so its specific structure will not be described in detail here. One end of the scissor-type lifting assembly is installed on the workbench 1, and the other end of the scissor-type lifting assembly is connected to the lifting seat 3 of the pressing assembly. The lifting seat 3 is driven to move in a direction close to or away from the fixed seat 11 through the extension and retraction of the scissor-type lifting assembly. It should be noted that the control assembly 5 in the present embodiment is not limited to the use of a scissor-type lifting assembly, and other structures in the prior art can also be used to control the lifting seat 3 to move or stop in a direction close to or away from the fixed seat 11.

[0032] When the stranding machine is working, multiple conductors are stranded into bundles through the stranding device 8 to form a wire core, and the wire core passes through the pressing space between the pressing assembly and the fixed seat 11 and is wound through the take-up device 9. When the winding reel of the take-up device 9 is wound and needs to be changed, the stranding device 8 is first controlled to stop twisting, and then the lifting seat 3 is controlled to descend through the control assembly 5 until the wire core is pressed and fixed on the fixed seat 11, and then the cutting assembly 4 is started to drive the cutter 41 to descend along the track 21 and punch the wire core to cut the wire core. The two ends of the cut wire core are respectively fixed by the pressing plate 6, and then the staff first slides the limit pressing plate 7 on the pressing plate 6 close to the side of the take-up device 9 until it is separated from the pressing plate 6. After the pressing plate 6 is separated from the limit pressing plate 7, the pressing force on the end of the wire core is lost, and the staff can easily take out the end of the wire core connected to the take-up device 9 to complete the winding. Then the staff pushes the limit pressing plate 7 on the pressing plate 6 in the opposite direction to reset it so that it is pressed against the pressing plate 6 again. After the reel change is completed, the limiting pressing plate 7 on the pressing plate 6 close to the stranding device 8 is slid and pushed away from the pressing plate 6, so that the end of the wire core connected to the stranding device 8 can be easily removed and pulled to the new reel after the reel change. Finally, the limiting pressing plate 7 is pushed in the reverse direction to reset, and the lifting seat 3 is controlled to rise through the control component 5 until it is reset.

[0033] The utility model discloses a cable twisting machine, in which a cutting device is arranged between a twisting device 8 and a wire taking-up device 9 for cutting the twisted wire cores, and the cutting device is provided with two independently controlled pressing plates 6, which are respectively used for pressing the two ends of the wire cores at the cutting position to prevent the wire cores from being thrown out or loosened; when in use, the pressing limit of the corresponding wire core ends can be released as needed, and the design is reasonable, the control is flexible, the structure is reliable, and the manufacturing cost is low.

[0034] For those skilled in the art, various other corresponding changes and deformations can be made according to the technical solutions and concepts described above, and all of these changes and deformations should fall within the protection scope of the claims of the utility model.

Claims

1. A cable stranding machine, comprising a stranding device (8) for stranding a plurality of conductors into a wire core and a winding device (9) for winding the stranded wire core, characterized in that: The invention also comprises a cutting device, which is arranged between the wire twisting device (8) and the wire taking-up device (9), and comprises a fixing seat (11), a pressing assembly and a cutting assembly (4). The pressing assembly and the fixing seat (11) are arranged relative to each other, and the pressing assembly can move in a direction approaching or moving away from the fixing seat (11). There is a pressing space between the pressing assembly and the fixing seat (11) for the wire core to pass through, and the cutting assembly (4) is used to cut the wire core.

2. A cable stranding machine according to claim 1, characterized in that: The pressing assembly comprises a lifting seat (3), a pressing plate (6) and a limiting pressure plate (7); the lifting seat (3) comprises a mounting portion (31) and a limiting portion (32); the connecting end (62) of the pressing plate (6) is rotatably connected to the mounting portion (31); the overlapping end (63) of the pressing plate (6) is overlapped on the limiting portion (32); the limiting pressure plate (7) presses the overlapping end (63) against the limiting portion (32) for limiting; and the limiting pressure plate (7) is slidably connected to the limiting portion (32); the limiting pressure plate (7) slides on the limiting portion (32) to achieve contact or separation with the overlapping end (63).

3. A cable stranding machine according to claim 2, characterized in that: An open placement groove (323) is provided on one end of the limiting portion (32) close to the pressing plate (6); the overlapping end (63) of the pressing plate (6) overlaps the bottom surface of the placement groove (323); a through groove (322) is penetrated by one end of the limiting portion (32) away from the pressing plate (6); the through groove (322) is communicated with the placement groove (323); the limiting pressing plate (7) is slidably connected in the through groove (322), and one end extends out of the through groove (322) to press against the pressing plate (6).

4. A cable stranding machine according to claim 3, characterized in that: Two of the pressing plates (6) are arranged side by side and spaced apart from each other. The two pressing plates (6) are arranged on both sides of the cutter (41) of the cutting assembly (4). The gap between the two pressing plates (6) allows the cutter (41) of the cutting assembly (4) to pass through.

5. A cable stranding machine according to claim 3 or 4, characterized in that: An arc-shaped portion (61) is provided in the middle of the pressing plate (6), and the arc-shaped portion (61) is used to contact the outer surface of the wire core.

6. A cable stranding machine according to claim 3, characterized in that: A baffle (71) is protruding from the limiting pressure plate (7), and the top surface of the baffle (71) is higher than the top surface of the through slot (322). When the limiting pressure plate (7) moves to be separated from the pressing plate (6), the baffle (71) abuts against the limiting portion (32).

7. A cable stranding machine according to claim 6, characterized in that: One end of the position-limiting pressing plate (7) away from the pressing plate (6) extends out of the through slot (322) and then bends to form a gripping portion (72).

8. A cable stranding machine according to claim 1, characterized in that: The pressing component is controlled to move by a control component (5), and the control component (5) is a scissor-type lifting component.

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