A doubling die for a copper cable stranding machine

Abstract

The present application relates to the field of parallel line mold, disclose a kind of parallel line mold for copper cable stranding machine, from left to right in turn is equipped with copper wire reel, parallel line mechanism, twisting machine and winding reel, the copper wire reel is perforated with multiple copper wires, all copper wires are sequentially extended through parallel line mechanism and twisting machine and then wound to the surface of winding reel, the parallel line mold body in the application, without replacing mold, adjust the number of passageways by rotating inner mold tube, adjust the size of passageway by adjusting bolt and rubber tightening ring, adapt to different number of lines and wire diameter, improve efficiency. Gather the guide projection of hopper and adjusting block, so that the copper wire bundle is more regular. And in the process of parallel line, convex block and concave block form a lock point, prevent the reverse twist of cable loose. Each structure is closely matched, easy to operate, reduce labor intensity, ensure the stability of cable quality, enhance the applicability and practicality of stranding machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of parallel line mold, in particular to a parallel line mold for copper cable stranding machine. BACKGROUND

[0002] Stranding machine is a kind of mechanical equipment for twisting multiple metal wires such as copper, aluminum, steel wire or fiber into one or more strands, widely used in wire and cable, steel wire rope, optical cable, steel-cored aluminum stranded wire and other industries, through the rotating twisting mode, multiple single wires or strands are wound into tightly structured and higher strength stranded wires according to specific rules such as direction and pitch, so as to improve the conductivity, mechanical strength or flexibility, and in the existing stranding machine, it is too inconvenient to replace different parallel line molds with different settings in different line number processes, and the formed cable only has two fixed points at both ends, which may be scattered, twisted and so on in some cases, resulting in that the twisted cable is loosened again. SUMMARY

[0003] The present application provides a parallel line mold for copper cable stranding machine, which overcomes the deficiencies described in the background art.

[0004] The technical scheme adopted by the present application to solve its technical problems is:

[0005] A parallel line mold for copper cable stranding machine, from left to right, is provided with a copper wire reel, a parallel line mechanism, a twisting machine and a winding reel, a plurality of copper wires are penetrated through the copper wire reel, all the copper wires are sequentially extended through the parallel line mechanism and the twisting machine and then wound on the surface of the winding reel, the parallel line mechanism comprises a parallel line mold body, a gathering bucket, a first cylinder and a second cylinder, a convex block is arranged on the output shaft of the first cylinder, a concave block corresponding to the convex block is arranged above the second cylinder, the convex block and the concave block are opposite to each other, the surface of the convex block gradually rises from the edge to the middle, and a movable block mounted on the output shaft of the second cylinder is arranged at the corresponding position of the middle of the convex block and the concave block.

[0006] The parallel line mold body comprises an inner mold pipe and an outer mold pipe sleeved outside the inner mold pipe, a channel for the copper wire to pass through is formed between the outer mold pipe and the inner mold pipe, the channel is communicated with the gathering bucket, the gathering bucket is a conical structure, the large-diameter one end of the gathering bucket is arranged towards the channel of the parallel line mold body, and the small-diameter one end is arranged towards the convex block and the concave block.

[0007] The gathering bucket is provided with guide protrusions arranged in an annular array, and the guide protrusions extend in a curved shape.

[0008] In a preferred technical scheme, the outer mold pipe comprises symmetrically arranged outer mold monomers, the two sides of each outer mold monomer are respectively provided with a fixed lug, the fixed lugs on the two outer mold monomers are abutted and fixed by bolts.

[0009] The outer mold monomer is provided with an arc-shaped clamping plate on the outside, and the side of the gathering bucket close to the parallel line mold body is provided with a limiting clamping ring corresponding to the arc-shaped clamping plate, and the limiting clamping ring is arranged in the arc-shaped clamping plate.

[0010] In a preferred technical solution, the inner mold pipe comprises an adjusting pipe, a protrusion and an adjusting block, the protrusion and the adjusting block are both rotationally arranged on the outside of the adjusting pipe, and the protrusion and the adjusting block are staggered, each surface of the adjusting block is provided with two channel grooves, the adjacent surface of the outer mold monomer and the inner mold pipe is provided with a channel groove, when the inner mold pipe is rotated to align the two channel grooves, the two channel grooves form the channel, and the channel and a sub-channel arranged in the middle of the adjusting pipe are both connected with the gathering bucket.

[0011] The diameter of the channel groove two is larger than that of the channel groove one.

[0012] In a preferred technical solution, the surface of the adjusting block is provided with a second clamping groove, the surface of the protrusion is provided with a first clamping groove, the second clamping groove and the first clamping groove are connected, and the inner mold pipe is provided with a rubber tightening ring, and the rubber tightening ring is arranged on the surface of the second clamping groove and the first clamping groove.

[0013] The outer mold monomer is provided with a plurality of limiting arc-shaped blocks, when the outer mold pipe is fixed on the outside of the inner mold pipe, the limiting arc-shaped blocks are embedded in the second clamping groove and the first clamping groove.

[0014] In a preferred technical solution, there is a gap between the inner mold pipe and the outer mold pipe.

[0015] The side of the adjusting block close to the adjusting pipe is provided with a threaded hole, a adjusting bolt is threadedly connected in the threaded hole, and the outer diameter of the adjusting bolt gradually rises from the middle to the upper end, when the adjusting bolt is rotated downward, the adjusting block is gradually pushed outwards.

[0016] In a preferred technical solution, when the adjusting bolt is rotated downward and the adjusting block is pushed outwards, the adjusting block abuts against the inside of the outer mold pipe, and the second clamping groove and the first clamping groove are staggered, and the inside of the adjusting bolt is further provided with a magnetic block, so as to be attracted to the adjusting block through the magnetic block.

[0017] Compared with the prior art, the technical solution has the following advantages:

[0018] The parallel line mold body in the application does not need to replace the mold, the number of channels is adjusted by rotating the inner mold pipe, the size of the channel is changed by the adjusting bolt cooperating with the rubber tightening ring, different line numbers and line diameters are adapted, and the efficiency is improved. The gathering bucket guide protrusion cooperates with the adjusting block to make the copper wire bundle more regular. During the parallel line process, the convex pressing block and the concave pressing block form a locking point to prevent the cable from being twisted and loosened in the opposite direction. The structures are closely matched, the operation is simple, the labor intensity is reduced, the quality of the cable is stable, and the applicability and practicality of the stranding machine are enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0019] The application will be further described in connection with the accompanying drawings and examples.

[0020] Figure 1 is a schematic view of the whole device of the application.

[0021] Figure 2 is a schematic view of the parallel line mechanism.

[0022] Figure 3 is a schematic view of the structure of adjusting the number of channels of the parallel line die body.

[0023] Figure 4 is another schematic view of the structure of adjusting the number of channels of the parallel line die body.

[0024] Figure 5 is a schematic view of the outer die tube.

[0025] Figure 6 is a schematic view of the inner die tube.

[0026] Figure 7 is a schematic view of the inner die tube of lifting the adjusting block outward.

[0027] Figure 8 is a schematic view of the adjusting bolt.

[0028] Figure 9 is a schematic view of the gathering bucket.

[0029] Figure 10 is a schematic view of the gathering bucket half cut.

[0030] Figure 11 is a schematic view of the concave pressing block and the movable block.

[0031] In the figure: copper wire disc 1, parallel line mechanism 2, twisting machine 3, winding disc 4;

[0032] parallel line die body 21, gathering bucket 22, first air cylinder 23, convex pressing block 231, second air cylinder 24, concave pressing block 241, movable block 242;

[0033] outer die tube 211, outer die monomer 2111, fixed ear 2112, arc-shaped clamping plate 2113, channel groove one 2114, limiting arc-shaped block 2115,

[0034] inner die tube 212, adjusting tube 2121, vice channel 1211, protruding block 2122, first clamping groove 1221, adjusting block 2123, channel groove two 1231, threaded hole 1232, adjusting bolt 1233, magnetic block 2331, second clamping groove 1234, rubber tightening ring 2124;

[0035] guide protrusion 221, limiting clamping ring 222. DETAILED DESCRIPTION

[0036] As Figures 1 to 11 shown, the application proposes a copper cable stranding machine, which is provided with a copper wire disc 1, a copper wire combining mechanism 2, a twisting machine 3 and a winding disc 4 from left to right, a plurality of copper wires are threaded through the copper wire disc 1, all the copper wires are sequentially extended through the copper wire combining mechanism 2 and the twisting machine 3 and then wound on the surface of the winding disc 4, characterized in that the copper wire combining mechanism 2 comprises a copper wire combining mechanism body 21, a gathering hopper 22, a first air cylinder 23 and a second air cylinder 24, the output shaft of the first air cylinder 23 is provided with a convex pressing block 231, the upper portion of the second air cylinder 24 is provided with a concave pressing block 241 corresponding to the convex pressing block 231, the convex pressing block 231 and the concave pressing block 241 face each other, the surface of the convex pressing block 231 gradually rises from the edge to the middle portion, and the corresponding position between the concave pressing block 241 and the middle portion of the convex pressing block 231 is provided with a movable block 242 mounted on the output shaft of the second air cylinder 24.

[0037] The copper wire combining mechanism body 21 comprises an inner mold pipe 212 and an outer mold pipe 211 sleeved outside the inner mold pipe 212, a channel for the copper wires to pass through is formed between the outer mold pipe 211 and the inner mold pipe 212, the channel is communicated with the gathering hopper 22, the gathering hopper 22 is a conical structure, the large-diameter end of the gathering hopper 22 is arranged towards the channel of the copper wire combining mechanism body 21, and the small-diameter end is arranged towards the convex pressing block 231 and the concave pressing block 241.

[0038] The gathering hopper 22 is provided with guide protrusions 221 arranged in an annular array.

[0039] After the copper wire bundle is drawn out from the copper wire disc 1, it enters the gathering hopper 22, the gathering hopper 22 is a conical structure, the large-diameter end is arranged towards the channel of the copper wire combining mechanism body 21, and the small-diameter end is arranged towards the convex pressing block 231 and the concave pressing block 241, the copper wire bundle slides along the guide protrusions 221 on the inner wall of the gathering hopper 22, the guide protrusions 221 are arranged in an annular array and extend in a curved shape, which can gradually guide the plurality of copper wires to the center position, so that the copper wire bundle is preliminarily gathered before entering the copper wire combining mechanism body 21, and after the copper wire bundle enters the copper wire combining mechanism body 21 from the gathering hopper 22, the first air cylinder 23 drives the convex pressing block 231 to axially advance, the second air cylinder 24 drives the concave pressing block 241 and the movable block 242 to form a pressing, the convex pressing block 231, the concave pressing block 241 and the movable block 242 constitute a radial locking point in the middle section of the channel, after the locking point is established, the twisting machine 3 continues to rotate, the winding disc 4 is synchronously pulled, the locking point prevents the copper wire bundle from rebounding in the opposite direction, the stranding is completed, the cylinder is depressurized, the convex pressing block 231 retreats, the movable block 242 resets, and the locking point is released.

[0040] Furthermore, the outer mold tube 211 includes symmetrically arranged outer mold units 2111, and each outer mold unit 2111 has a fixing ear 2112 on both sides. The fixing ears 2112 on the two outer mold units 2111 abut each other and are fixed by bolts.

[0041] The outer mold unit 2111 is provided with an arc-shaped clamping plate 2113 on its outer side, and the gathering bucket 22 is provided with a limiting ring 222 corresponding to the arc-shaped clamping plate 2113 on the side near the parallel mold body 21. The limiting ring 222 abuts against the arc-shaped clamping plate 2113.

[0042] Furthermore, the inner mold tube 212 includes an adjusting tube 2121, a protrusion 2122, and an adjusting block 2123. The protrusion 2122 and the adjusting block 2123 are rotatably arrayed on the outside of the adjusting tube 2121, and the protrusion 2122 and the adjusting block 2123 are staggered. Each adjusting block 2123 has a channel groove 2231 on its surface. The adjacent surfaces of the outer mold unit 2111 and the inner mold tube 212 have a channel groove 1114. When the inner mold tube 212 is rotated until the channel groove 2231 and the channel groove 1114 are aligned, the channel groove 2231 and the channel groove 1114 form the channel. This channel and the secondary channel 1211 provided in the middle of the adjusting tube 2121 are connected to the gathering bucket 22.

[0043] When the inner mold tube 212 is rotated, channel groove 2 1231 and channel groove 1 2114 gradually align to form a complete channel, allowing the copper wire to pass through smoothly. Continuing to rotate the inner mold tube 212 can increase or decrease the number of aligned channel grooves, thereby achieving dynamic adjustment of the number of channels to accommodate different numbers of copper wires to be wired together. Furthermore, the diameter of channel groove 2 1231 is larger than the diameter of channel groove 1 2114. This dimensional difference helps the copper wire enter the wire-connecting mold body 21 more smoothly. In addition, the middle part of the adjusting tube 2121 is provided with a secondary channel 1211, which is connected to the gathering hopper 22 and plays an auxiliary guiding role for the copper wire. During the adjustment of the number of channels, the secondary channel 1211 can provide an additional guiding path for the copper wire, ensuring that the copper wire will not get stuck or become tangled when entering the wire-connecting mold body 21 due to changes in the number of channels.

[0044] Furthermore, the surface of the adjusting block 2123 is provided with a second slot 1234, the surface of the protrusion 2122 is provided with a first slot 1221, the second slot 1234 is connected to the first slot 1221, and the inner mold tube 212 is covered with a rubber tightening ring 2124, which abuts against the surfaces of the second slot 1234 and the first slot 1221.

[0045] The outer mold monomer 2111 is provided with a plurality of limiting arc-shaped blocks 2115, when the outer mold pipe 211 is fixed outside the inner mold pipe 212, the limiting arc-shaped blocks 2115 are embedded in the second clamping groove 1234 and the first clamping groove 1221, and there is a spacing between the inner mold pipe 212 and the outer mold pipe 211;

[0046] The adjusting block 2123 is provided with a threaded hole 1232 on one side close to the adjusting pipe 2121, a adjusting bolt 1233 is threadedly connected in the threaded hole 1232, and the outer diameter of the adjusting bolt 1233 gradually rises from the middle part to the upper end.

[0047] When it is necessary to adapt to thicker copper wire bundles or increase the number of copper wires (the channel size needs to be expanded), the operator rotates the adjusting bolt 1233 downward. Because the bolt is threadedly connected with the threaded hole 1232, the bolt moves downward along the axial direction (close to the adjusting pipe 2121) during rotation.

[0048] At this time, the part of the bolt that “gradually rises from the middle part to the upper end” will gradually come into contact with and press the inner side of the adjusting block 2123 – because the outer diameter of the upper end is larger, the pressing force gradually increases during downward movement, and finally the adjusting block 2123 is pushed out to the outside (towards the outer mold pipe 211), so that the adjusting block 2123 is radially displaced.

[0049] When it is necessary to adapt to thinner copper wire bundles or reduce the number of copper wires (the channel size needs to be reduced), the adjusting bolt 1233 is rotated in the opposite direction (upward), and the raised part of the bolt moves upward along the axial direction, and the pressing force of the bolt on the adjusting block 2123 decreases. At this time, the rubber tightening ring 2124 (which was elastically deformed due to the outward movement of the adjusting block 2123) that is sleeved outside the inner mold pipe pulls the adjusting block 2123 back to the inside by virtue of its own contraction force, until the channel size meets the requirements.

[0050] The channel formed by the channel groove two 1231 of the adjusting block 2123 and the channel groove one 2114 of the outer mold pipe is a “pre-constrained” structure for the copper wire bundle before entering the gathering funnel 22 from the parallel line mold body 21. The adjusting block 2123 ensures that the shape of the channel groove two 1231 is adapted to the copper wire bundle through accurate resetting (the action of the rubber tightening ring 2124) and size adjustment (the action of the adjusting bolt), that is, for a wire bundle composed of a plurality of copper wires, the channel groove two 1231 can preliminarily gather the dispersed copper wires to avoid excessive dispersion before entering the gathering funnel 22.

[0051] A preferred technical solution, when the adjusting screw 1233 is rotated downward and the adjusting block 2123 is pushed outward, the adjusting block 2123 abuts against the inner side of the outer die tube 211, and the second clamping groove 1234 is staggered with the first clamping groove 1221, and the inner side of the adjusting screw is also provided with a magnetic block 2331 to attract the adjusting block through the magnetic block 2331.

[0052] Secondly, according to the above description and the accompanying Figure 3 , the accompanying Figure 4 , the number of channels through which the copper wire passes composed of channel groove one 2114 and channel groove two 1231 can be changed by rotating the inner die tube 212, such as the accompanying Figure 3 , two channels are composed of, and the inner die tube 211 is counterclockwise rotated to four channels as shown in the accompanying Figure 4 , the adjustment can be completed, and secondly, the auxiliary channel 1211 can also be used as a channel for the copper wire to pass through.

[0053] The copper wire cable stranding machine of the present application realizes efficient stranding of multiple copper wires through the cooperation of the copper wire disc, the parallel wire mechanism, the twisting machine and the winding disc, and the core lies in the flexible adjustment and multi-link cooperation of the parallel wire mechanism, and the specific working principle is as follows:

[0054] Copper wire leading out and preliminary guiding:

[0055] After the multiple copper wires are led out from the copper wire disc 1, they first enter the parallel wire die body 21 of the parallel wire mechanism 2. The parallel wire die body 21 is composed of an outer die tube 211 and an inner die tube 212, and a channel for the copper wire to pass through is formed between the two. The channel is connected with a conical gathering bucket 22. The distance between the inner die tube 212 and the outer die tube 211 provides space for the radial movement of the adjusting block 2123. By rotating the inner die tube 212, the alignment number of the channel groove two 1231 of the adjusting block 2123 and the channel groove one 2114 of the outer die tube can be adjusted to adapt to different wire number requirements; at the same time, by rotating the adjusting screw 1233 on the adjusting block 2123, the adjusting block 2123 can be pushed by the protruding structure of the adjusting screw 1233 to change the channel size to adapt to copper wires of different wire diameters, and the rubber tightening ring 2124 ensures the stability of the adjusting block position through elastic reset to ensure accurate alignment of the channel and structural sealing;

[0056] Copper wire bundle gathering and pre-constraint:

[0057] The copper wire bundle passing through the channel enters the converging pot 22, which is a conical structure with a large-diameter end connected to the wire combining mold channel and a small-diameter end facing the briquetting assembly. The arc-shaped guide protrusions 221 inside the converging pot are arranged in a ring array, guiding the dispersed copper wires to slide along a curved path and gradually converge to the center to form a regular wire bundle. At the same time, the staggered cooperation of the adjusting blocks 2123 and the protrusions 2122 forms a ring-shaped closed structure under the constraint of the rubber tightening ring 2124, avoiding the copper wire bundle from spreading before entering the converging pot, and forming a "relay constraint" with the guiding effect of the converging pot, laying a regular foundation for subsequent twisting;

[0058] Locking and preventing loosening:

[0059] The converged copper wire bundle is introduced from the small-diameter end of the converging pot into the space between the convex briquetting block 231 and the concave briquetting block 241. The first air cylinder 23 drives the convex briquetting block (from the surface edge to the middle protrusion) to axially advance, and the second air cylinder 24 drives the concave briquetting block and the movable block 242 to synchronously press, forming a radial locking point in the middle of the channel. This locking point can temporarily fix the copper wire bundle and prevent it from loosening due to reverse twisting during the rotation and twisting process of the twisting machine 3. After twisting is completed, the air cylinder is depressurized, the briquetting block is reset, and the locking point is released, without affecting subsequent winding;

[0060] Twisting and winding:

[0061] The copper wire bundle fixed by the locking point enters the twisting machine 3 and is twisted into strands in the preset direction and pitch under the action of the twisting force. The twisted cable is finally pulled to the winding disc 4, and winding is completed by the rotation of the winding disc. During the entire process, the copper wire bundle is introduced from dispersion to final formation, and through the dynamic adjustment (adaptation to different wire numbers and diameters) of the wire combining mechanism, the guiding and restraining of the converging pot, the temporary locking of the briquetting block, and the twisting effect of the twisting machine, the twisting machine can adapt to multiple specifications of copper wires without frequent mold replacement, effectively prevent the twisted cable from loosening, and significantly improve the flexibility and cable formation quality of the twisting machine.

[0062] The above is only a preferred embodiment of the present application, and therefore cannot limit the scope of the present application. Any equivalent changes and modifications made in accordance with the scope and content of the present patent should still be within the scope of the present application.

Claims

1. A wire-jointing mold for a copper wire stranding machine, comprising, from left to right, a copper wire spool, a wire-jointing mechanism, a twisting machine, and a winding reel, wherein multiple copper wires pass through the copper wire spool, and all copper wires extend sequentially through the wire-jointing mechanism and the twisting machine before being wound onto the surface of the winding reel, characterized in that, The paralleling mechanism includes a paralleling mold body, a gathering bucket, a first cylinder and a second cylinder. A convex pressure block is provided on the output shaft of the first cylinder, and a concave pressure block corresponding to the convex pressure block is provided above the second cylinder. The convex pressure block and the concave pressure block face each other. The surface of the convex pressure block gradually rises from the edge to the middle. A movable block installed on the output shaft of the second cylinder is provided at the corresponding position of the middle of the concave pressure block and the convex pressure block. The paralleling mold body includes an inner mold tube and an outer mold tube sleeved outside the inner mold tube. A channel for copper wires to pass through is formed between the outer mold tube and the inner mold tube. The channel is connected to the gathering bucket. The gathering bucket has a conical structure. The large-diameter end of the gathering bucket is set towards the channel of the paralleling mold body, while the small-diameter end is set towards the convex pressure block and the concave pressure block. The gathering hopper is provided with guide protrusions arranged in a circular array, and the guide protrusions extend in a curved shape. The outer mold tube includes symmetrically arranged outer mold units, each outer mold unit having a fixing lug on both sides. The fixing lugs on the two outer mold units abut against each other and are fixed by bolts. The outer mold unit is provided with an arc-shaped card plate on its outer side, and the gathering bucket is provided with a limiting ring corresponding to the arc-shaped card plate on the side near the parallel mold body. The limiting ring abuts against the arc-shaped card plate. The inner mold tube includes an adjusting tube, a protrusion, and an adjusting block. The protrusion and the adjusting block are rotatably arrayed on the outside of the adjusting tube, and the protrusion and the adjusting block are staggered. Each adjusting block has a channel groove II on its surface. The adjacent surfaces of the outer mold unit and the inner mold tube have a channel groove I. When the inner mold tube is rotated until the channel groove II and the channel groove I are aligned, the channel groove II and the channel groove I form the channel. This channel and the secondary channel set in the middle of the adjusting tube are connected to the gathering bucket. The diameter of channel groove two is larger than the diameter of channel groove one.

2. The wire-splitting mold for a copper cable stranding machine according to claim 1, characterized in that, The surface of the adjusting block is provided with a second groove, the surface of the protrusion is provided with a first groove, the second groove is connected to the first groove, and the inner mold tube is covered with a rubber tightening ring, which abuts against the surfaces of the second groove and the first groove. The outer mold unit is provided with multiple limiting arc blocks. When the outer mold tube is fixed outside the inner mold tube, the limiting arc blocks are embedded in the second slot and the first slot.

3. A wire-splitting mold for a copper cable stranding machine according to claim 2, characterized in that, There is a gap between the inner mold tube and the outer mold tube; The adjusting block has a threaded hole on the side near the adjusting tube, and an adjusting bolt is threaded into the threaded hole. The outer diameter of the adjusting bolt gradually bulges from the middle to the top. When the adjusting bolt is rotated downwards, it gradually pushes the adjusting block outwards.

4. A wire-splitting mold for a copper cable stranding machine according to claim 3, characterized in that, When the adjusting bolt is rotated downwards and the adjusting block is pushed outwards, the adjusting block abuts against the inner side of the outer mold tube, and the second slot is offset from the first slot; The adjusting bolt is also provided with a magnetic block on its inner side, so that it can be attracted to the adjusting block.

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