A one-time cabling device and method for two or more pairs of shielded cables

Abstract

The present invention discloses a one-time cabling device and method for two or more pairs of shielded cables, wherein the cabling device comprises a flat longitudinal wrapping mold and a mold fixing block, the flat longitudinal wrapping mold comprises a mold base plate, a shielding tape curling guide mold and a forming tube, the end face of the mold base plate is fixedly connected with a shielding tape curling guide mold, the shielding tape curling guide mold comprises a straight base plate at the inlet end, a semicircular arc plate in the middle and a circular arc base plate at the outlet end, the two sides of the straight base plate are bent and extended with side guide plates, a straight side guide groove is formed between the side guide plate and the straight base plate, and the side guide plate is twisted and bent toward the outlet end to form a circular arc side guide plate integrated with the semicircular arc plate. The present invention has high production efficiency, and can complete twisting, longitudinal wrapping and cabling in one process, saving labor time cost, reducing the cost of cables, having great cost advantages, saving equipment investment, and the outer diameter of the finished cable can be made smaller and lighter.

Description

Technical Field

[0001] The present invention relates to the technical field of cable processing equipment, and in particular to a one-time cabling device and method for two or more pairs of shielded cables. Background Art

[0002] In the current cable manufacturing industry, wire pair shielding adopts three methods: drag wrap, wrap and longitudinal wrap. In multi-pair shielded communication cables, drag wrap is generally used for cable assembly shielding, and longitudinal wrap and wrap are used for individual wire pair shielding. When producing multi-pair shielded communication cables, many manufacturers twist each pair of wires separately and then drag or wrap the shielding layer, and then assemble all the shielded twisted pairs into a cable. The current shortcomings of this method are: 1. From the process point of view, two processes are required to complete, and the twisting pitch of shielded communication cables is generally small, the production efficiency is low, and the labor cost is doubled; 2. Due to the stress of the reel, all wire pairs are not twisted tightly enough, and the actual outer diameter of the assembled cable is too large, which causes the outer diameter of the entire cable to be large, which invisibly increases the manufacturing cost of the cable.

[0003] The industry also uses ordinary circular trumpet molds to produce two or more pairs of shielded communication cables, which can also achieve the effect of one-time cabling, but there are also shortcomings: 1. The longitudinal aluminum foil opening direction of the wire pair shielding cannot face outward. If two of the shielded wire pairs are close to each other during the cable assembly, the crosstalk between the wire pairs may be unqualified; 2. The aluminum foil of the shielded wire pair is twisted with the formation of the cable lay length, and the aluminum foil is flanging, wrinkled and damaged during twisting, which causes the aluminum foil covering of each shielded wire pair to be different in tightness, resulting in unqualified electrical performance of the cable. Summary of the invention

[0004] The object of the present invention is to provide a device and method for cabling two or more pairs of shielded cables at one time, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A one-time cabling device for two or more pairs of shielded cables, comprising a flat longitudinal wrapping mold and a mold fixing block, the flat longitudinal wrapping mold comprising a mold base plate, a shielding tape curling guide mold and a forming tube, the end face of the mold base plate is fixedly connected with the shielding tape curling guide mold, the shielding tape curling guide mold comprises a straight base plate at the inlet end, a semi-circular arc plate in the middle and a circular arc base plate at the outlet end, the two side edges of the straight base plate are bent and extended with side guide plates, a straight side guide groove is formed between the side guide plate and the straight base plate, the side guide plate is twisted and bent toward the outlet end to form an arc side guide plate integrated with the semi-circular arc plate, and an arc side guide groove is formed between the arc side guide plate and the semi-circular arc plate; the two side edges of the circular arc base plate are overlapped to form a longitudinal wrapping through hole for the shielding tape and the core wire to pass through, and a forming tube is fixedly connected to the outlet end of the shielding tape curling guide mold corresponding to the longitudinal wrapping through hole;

[0007] The mold fixing block is provided with at least two installation inclined surfaces, and the mold base plate is fitted and fixed on the installation inclined surfaces. After the flat longitudinal wrapping mold is installed on the mold fixing block, the outlet ends of each flat longitudinal wrapping mold are butt-jointed together.

[0008] Preferably, it also includes a frame mold base, a mold base plate for being installed on the cabling machine frame is extended from the frame mold base, the mold base plate is fixedly connected to the cabling machine frame by mold base mounting bolts, a fixed block seat plate is extended from the mold fixing block, a fixed block mounting hole is opened on the fixed block seat plate, and the fixed block seat plate is fixedly connected to the frame mold base by fixed block mounting bolts passed through the fixed block mounting hole.

[0009] Preferably, a guide mold mounting hole is provided on the frame mold base corresponding to the inlet end of each flat longitudinal wrapping mold, a guide mold is inserted in the guide mold mounting hole, and the guide mold is provided with a belt body guide hole for the shielding belt to pass through and a core wire guide hole for the core wire to pass through.

[0010] Preferably, a locking hole is further provided on the side wall of the guide die, and a locking bolt is threadedly penetrated on the frame die base, and the end of the locking bolt extends into the locking hole.

[0011] Preferably, a pair of limiting short columns are welded and fixed to the inlet end of the mold base plate corresponding to the shielding tape curling guide mold, and the outer wall of the side guide plate of the shielding tape curling guide mold is welded and fixedly connected to the limiting short columns.

[0012] Preferably, a pair of limiting sleeves are welded and fixed in the forming tube, a core shaft is inserted in the limiting sleeve, the limiting sleeves are tightly attached to the two side edges of the arc seat plate, and the ends of the limiting sleeves away from the forming tube are welded and fixed to the arc seat plate and the mold seat plate.

[0013] Preferably, a reinforcing connecting strip is further provided at the connection between the semi-circular arc plate and the circular arc seat plate, and both ends of the reinforcing connecting strip are respectively welded and fixedly connected to the corresponding limiting sleeves.

[0014] Preferably, seat plate mounting holes are formed around the mold seat plate, and seat plate mounting bolts for fixing the mold seat plate on the mounting inclined surface are passed through the seat plate mounting holes.

[0015] A one-time cabling method for two or more pairs of shielded cables, comprising the following steps:

[0016] S1. Install the flat longitudinal wrapping mold: install the flat longitudinal wrapping mold on the mold fixing block, and tighten the seat plate mounting bolts on the flat longitudinal wrapping mold;

[0017] S2. Install the mold fixing block: install the mold fixing block on the frame mold base, and tighten the fixing block mounting bolts on the mold fixing block;

[0018] S3, passing the shielding tape and the core wire through the guide die at the same time, the core wire through the longitudinal package through hole and the forming tube, the shielding tape through the straight side guide groove, the arc side guide groove, the longitudinal package through hole and the forming tube in sequence, and under the action of the shielding tape curling guide die, the shielding tape is curled and wrapped on the core wire to form a twisted pair wire;

[0019] S4. Set the pay-off tension and pitch of the cabling machine and start the cabling machine;

[0020] S5. After the cabling machine is running, as the pitch is formed, each pair of twisted wires will fit tightly together after coming out of the outlet end of the flat longitudinal die to form a round cable with a stable structure.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. High production efficiency. Twisting, longitudinal packaging and cabling can be completed in one process, saving labor costs, reducing cable costs, and having great cost advantages;

[0023] 2. Fewer equipment are needed for cable production, which reduces the twisting process and saves equipment investment;

[0024] 3. The multi-pair shielded cable has a compact and stable structure and a small total twisted outer diameter, so the outer diameter of the finished cable can be smaller and lighter, which gives the cable a competitive advantage;

[0025] 4. This method can control the opening direction of the longitudinally wrapped shielding tape (aluminum foil) to face outward. When assembling the cable, the openings of the shielding tape (aluminum foil) of each pair of wires will not touch each other, so that the cable has good crosstalk between wires, and the electrical performance of the cable fully meets the requirements and has higher quality;

[0026] 5. After all the wire pairs come out from the outlet of the flat longitudinal package mold on the device, they are tightly twisted together through the pitch transmitted by the cabling machine. The structure is stable, and the flanging, wrinkling and damage of the shielding tape (aluminum foil) in cable production can be completely avoided. At the same time, it also reduces the quality problems in the cable production process and improves the production quality;

[0027] 6. The types of cables can be expanded. If you need to produce four or eight pairs of shielded cables, you can add a corresponding number of flat longitudinal wrapping molds and install the flat longitudinal wrapping molds according to the 360-degree evenly divided fixing blocks at the same time, so that you can produce multi-pair shielded cables, network cables, signal control cables and other cable products with the same structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of a flat longitudinal wrapping mold in a one-time cabling device for two or more pairs of shielded cables;

[0029] Figure 2 It is a structural schematic diagram of the AA section of a shielding tape curling guide die in a one-time cabling device for two or more pairs of shielded cables;

[0030] Figure 3 It is a structural schematic diagram of the cross section of a shielding tape crimping guide die BB in a one-time cabling device for two or more pairs of shielded cables;

[0031] Figure 4 It is a structural schematic diagram of the cross section of a shielding tape curling guide die CC in a one-time cabling device for two or more pairs of shielded cables;

[0032] Figure 5 It is a structural schematic diagram of a one-time cabling device for two or more pairs of shielded cables;

[0033] Figure 6 The present invention is a structural schematic diagram of a one-time cabling device for two or more pairs of shielded cables during operation.

[0034] In the figure: 100-core wire, 200-shielding tape, 300-round cable, 1-mold base plate, 11-seat plate mounting hole, 12-limiting short column, 13-reinforced connecting strip, 14-seat plate mounting bolt, 2-shielding tape curling guide die, 21-straight seat plate, 22-side guide plate, 23-straight side guide groove, 24-semi-arc plate, 25-arc side guide plate, 26-arc side guide groove, 27-arc seat plate, 28-longitudinal package through hole, 3-forming tube, 31-limiting sleeve, 32-mandrel, 4-mold fixing block, 41-fixed block seat plate, 42-fixed block mounting hole, 43-fixed block mounting bolt, 5-frame mold base, 51-mold base plate, 52-mold base mounting bolt, 53-guide mold mounting hole, 54-guide mold, 55-locking bolt. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Please refer to Figure 1 The present invention provides a technical solution: a one-time cabling device for two or more pairs of shielded cables, comprising a flat longitudinal wrapping mold and a mold fixing block 4, wherein the flat longitudinal wrapping mold comprises a mold base plate 1, a shielding tape curling guide mold 2 and a forming tube 3, wherein the end surface of the mold base plate 1 is fixedly connected with the shielding tape curling guide mold 2, wherein the shielding tape curling guide mold 2 comprises a straight base plate 21 at the inlet end, a semicircular arc plate 24 in the middle and a circular arc base plate 27 at the outlet end, wherein the two sides of the straight base plate 21 are bent and extended with side guides The side guide plate 22 and the straight seat plate 21 form a straight side guide groove 23, the side guide plate 22 is twisted and bent toward the outlet end to form an arc side guide plate 25 integrated with the semi-circular plate 24, and the arc side guide groove 26 is formed between the arc side guide plate 25 and the semi-circular plate 24; the two side edges of the arc seat plate 27 overlap to form a longitudinal through hole 28 for the shielding tape 200 and the core wire 100 to pass through, and the outlet end of the shielding tape curling guide die 2 is fixedly connected with a forming tube 3 corresponding to the longitudinal through hole 28;

[0036] The mold fixing block 4 is provided with at least two installation inclined surfaces, and the mold base plate 1 is fitted and fixed on the installation inclined surfaces. After the flat longitudinal wrapping mold is installed on the mold fixing block 4, the outlet ends of each flat longitudinal wrapping mold are butt-jointed together.

[0037] See also Figure 5 In this embodiment, two mounting inclined surfaces are provided on the mold fixing block 4, and two flat longitudinal wrapping molds are installed, which can be used for one-time cabling processing of two pairs of shielded cables. If four or eight pairs of shielded cables need to be produced, a corresponding number of flat longitudinal wrapping molds can be added, and at the same time, the mold fixing block 4 is evenly divided according to 360 degrees, and flat longitudinal wrapping molds are installed, so that cable products with the same structure such as multi-pair shielded cables, network cables, and signal control cables can be produced.

[0038] The present embodiment may further include a frame mold base 5, on which a mold base base plate 51 for being mounted on a cabling machine frame is extended, and the mold base base plate 51 is fixedly connected to the cabling machine frame via mold base mounting bolts 52, and the mold fixing block 4 is extended with a fixing block base plate 41, on which a fixing block mounting hole 42 is opened, and the fixing block base plate 41 is fixedly connected to the frame mold base 5 via a fixing block mounting bolt 43 passed through the fixing block mounting hole 42.

[0039] The frame mold base 5 is provided with a guide mold mounting hole 53 corresponding to the inlet end of each flat longitudinal wrapping mold, and a guide mold 54 is inserted into the guide mold mounting hole 53. The guide mold 54 is provided with a belt body guide hole for the shielding belt 200 to pass through and a core wire guide hole for the core wire 100 to pass through. The shielding belt 200 and the core wire 100 are guided by the guide mold 54.

[0040] Preferably, a locking hole is further provided on the side wall of the guide die 54, and a locking bolt 55 is threadedly penetrated on the frame die base 5, and the end of the locking bolt 55 extends into the locking hole. With such a structural arrangement, the guide die 54 is easy to disassemble and assemble, and is convenient for subsequent maintenance and replacement.

[0041] A pair of limiting short columns 12 are welded and fixed to the inlet end of the mold base plate 1 corresponding to the shielding tape curling guide mold 2 , and the outer wall of the side guide plate 22 of the shielding tape curling guide mold 2 is welded and fixedly connected to the limiting short columns 12 .

[0042] A pair of limiting sleeves 31 are welded and fixed in the forming tube 3, and a core shaft 32 is inserted in the limiting sleeves 31. The limiting sleeves 31 are closely attached to the two sides of the arc seat plate 27, and the ends of the limiting sleeves 31 away from the forming tube 3 are welded and fixed to the arc seat plate 27 and the mold seat plate 1. The limiting sleeves 31 can play a good limiting and protective role on the arc seat plate 27, enhance the overall strength of the shielding tape curling guide mold 2, and are not easy to deform.

[0043] A reinforcing connecting strip 13 is further provided at the connection between the semicircular arc plate 24 and the circular arc seat plate 27 , and both ends of the reinforcing connecting strip 13 are respectively welded and fixedly connected to the corresponding limiting sleeves 31 .

[0044] The mold base plate 1 is provided with base plate mounting holes 11 around it, and base plate mounting bolts 14 for fixing the mold base plate 1 on the mounting inclined surface are inserted into the base plate mounting holes 11. With such a structural arrangement, the flat longitudinal package mold is easy to disassemble and assemble, and is convenient for subsequent maintenance and replacement.

[0045] A one-time cabling method for two or more pairs of shielded cables, comprising the following steps:

[0046] S1. Install the flat longitudinal wrapping mold: install the flat longitudinal wrapping mold on the mold fixing block 4, and tighten the seat plate mounting bolts 14 on the flat longitudinal wrapping mold;

[0047] S2. Install the mold fixing block: install the mold fixing block 4 on the frame mold base 5, and tighten the fixing block mounting bolts 43 on the mold fixing block 4;

[0048] S3, passing the shielding tape 200 and the core wire 100 through the guide die 54 at the same time, the core wire 100 passes through the longitudinal package through hole 28 and the forming tube 3, and the shielding tape 200 passes through the straight side guide groove 23, the arc side guide groove 26, the longitudinal package through hole 28 and the forming tube 3 in sequence, and under the action of the shielding tape curling guide die 2, the shielding tape 200 is curled and wrapped on the core wire 100 to form a twisted pair;

[0049] S4. Set the pay-off tension and pitch of the cabling machine and start the cabling machine. Obviously, the shielding tape 200 needs to be equipped with a bag-hauling machine with an active pay-off device in the prior art.

[0050] S5. After the cabling machine is in operation, as the pitch is formed, each pair of twisted wires will fit tightly together after coming out of the outlet end of the flat longitudinal wrapping mold to form a round cable 300 with a stable structure.

[0051] The advantages of this embodiment are:

[0052] 1. High production efficiency. Twisting, longitudinal packaging and cabling can be completed in one process, saving labor costs, reducing cable costs, and having great cost advantages;

[0053] 2. Fewer equipment are needed for cable production, which reduces the twisting process and saves equipment investment;

[0054] 3. The multi-pair shielded cable has a compact and stable structure and a small total twisted outer diameter, so the outer diameter of the finished cable can be smaller and lighter, which gives the cable a competitive advantage;

[0055] 4. This method can control the opening direction of the longitudinally wrapped shielding tape 200 (aluminum foil) to face outward. When assembling the cable, the openings of the shielding tape 200 (aluminum foil) of each pair of wires will not touch each other, thereby making the cable have good inter-wire crosstalk, and the electrical performance of the cable fully meets the requirements, with higher quality;

[0056] 5. After all the wire pairs come out from the outlet of the flat longitudinal package mold on the device, they are tightly twisted together through the pitch transmitted by the cabling machine, and the structure is stable. The flanging, wrinkling and damage of the shielding tape 200 (aluminum foil) in cable production can be completely avoided, and the quality problems in the cable production process are also reduced, which improves the production quality;

[0057] 6. The types of cables can be expanded. If you need to produce four or eight pairs of shielded cables, you can add a corresponding number of flat longitudinal wrapping molds and install the flat longitudinal wrapping molds according to the 360-degree evenly divided fixing blocks at the same time, so that you can produce multi-pair shielded cables, network cables, signal control cables and other cable products with the same structure.

[0058] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0059] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A one-time cabling device for two or more pairs of shielded cables, characterized in that: The invention comprises a flat longitudinal wrapping die and a die fixing block (4), wherein the flat longitudinal wrapping die comprises a die base plate (1), a shielding tape curling guide die (2) and a forming tube (3), wherein the end surface of the die base plate (1) is fixedly connected to the shielding tape curling guide die (2), wherein the shielding tape curling guide die (2) comprises a straight base plate (21) at the inlet end, a semicircular arc plate (24) in the middle and a circular arc base plate (27) at the outlet end, wherein the two side edges of the straight base plate (21) are bent and extended to form side guide plates (22), wherein the side guide plates (22) and the straight base plate (27) are connected to each other. 1) to form a straight side guide groove (23), the side guide plate (22) is twisted and bent toward the outlet end to form an arc side guide plate (25) integrated with the semi-circular plate (24), and an arc side guide groove (26) is formed between the arc side guide plate (25) and the semi-circular plate (24); the two side edges of the arc seat plate (27) are overlapped to form a longitudinal through hole (28) for the shielding tape (200) and the core wire (100) to pass through, and the outlet end of the shielding tape curling guide die (2) is fixedly connected to a forming tube (3) corresponding to the longitudinal through hole (28); The mold fixing block (4) is provided with at least two installation inclined surfaces, the mold base plate (1) is fitted and fixed on the installation inclined surfaces, and after the flat longitudinal wrapping mold is installed on the mold fixing block (4), the outlet ends of the flat longitudinal wrapping molds are butt-jointed together; It also includes a frame mold base (5), a mold base base plate (51) for being mounted on a cabling machine frame extending from the frame mold base (5), the mold base base plate (51) being fixedly connected to the cabling machine frame via mold base mounting bolts (52), a fixed block base plate (41) extending from the mold fixed block (4), a fixed block mounting hole (42) being formed on the fixed block base plate (41), and the fixed block base plate (41) being fixedly connected to the frame mold base (5) via fixed block mounting bolts (43) passing through the fixed block mounting hole (42); A guide die mounting hole (53) is provided on the frame die base (5) corresponding to the inlet end of each flat longitudinal wrapping die, a guide die (54) is inserted into the guide die mounting hole (53), and the guide die (54) is provided with a belt body guide hole for the shielding belt (200) to pass through and a core wire guide hole for the core wire (100) to pass through; A locking hole is also provided on the side wall of the guide die (54), a locking bolt (55) is threadedly penetrated on the frame die base (5), and the end of the locking bolt (55) extends into the locking hole; A pair of limiting short columns (12) are welded and fixed to the mold base plate (1) corresponding to the inlet end of the shielding tape curling guide mold (2), and the outer wall of the side guide plate (22) of the shielding tape curling guide mold (2) is welded and fixedly connected to the limiting short columns (12); A pair of limiting sleeves (31) are welded and fixed in the forming tube (3), a core shaft (32) is inserted in the limiting sleeves (31), the limiting sleeves (31) are closely attached to the two side edges of the arc seat plate (27), and the ends of the limiting sleeves (31) away from the forming tube (3) are welded and fixed to the arc seat plate (27) and the mold seat plate (1); A reinforcing connecting strip (13) is further provided at the connection between the semicircular arc plate (24) and the circular arc seat plate (27), and the two ends of the reinforcing connecting strip (13) are respectively welded and fixedly connected to the corresponding limiting sleeves (31); seat plate mounting holes (11) are provided around the mold seat plate (1), and seat plate mounting bolts (14) for fixing the mold seat plate (1) on the mounting inclined surface are passed through the seat plate mounting holes (11); The one-time cabling method of the cabling device comprises the following steps: S1. Install the flat longitudinal wrapping mold: install the flat longitudinal wrapping mold on the mold fixing block (4), and tighten the seat plate mounting bolts (14) on the flat longitudinal wrapping mold; S2. Install the mold fixing block: install the mold fixing block (4) on the frame mold base (5), and tighten the fixing block mounting bolts (43) on the mold fixing block (4); S3, passing the shielding tape (200) and the core wire (100) through the guide die (54) at the same time, the core wire (100) passing through the longitudinal through hole (28) and the forming tube (3), the shielding tape (200) passing through the straight side guide groove (23), the arc side guide groove (26), the longitudinal through hole (28) and the forming tube (3) in sequence, and under the action of the shielding tape curling guide die (2), the shielding tape (200) is curled and wrapped around the core wire (100) to form a twisted pair of wires; S4. Set the pay-off tension and pitch of the cabling machine and start the cabling machine; S5. After the cabling machine is running, as the pitch is formed, each pair of twisted wires will fit tightly together after coming out of the outlet end of the flat longitudinal wrapping mold to form a round cable with a stable structure.

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