A four-core star twisting machine

Abstract

A four-core star-twisting machine, characterized in that it comprises: a pay-off device, wherein a pay-off frame is provided in the pay-off device, and a tension wire storage mechanism is provided at the pay-off end of the pay-off frame, and a plurality of core wires are guided out through the guide wheel of the tension wire storage mechanism; a plurality of core wires enter a wire-dividing device, and the wire-dividing device comprises a wire-dividing disk corresponding to the number of core wires, and the wire-dividing disk is used to make a plurality of core wires evenly distributed around the circumference of the wire-dividing disk and then enter a wire-passing channel of a wire-passing device; a core wire pre-twisting device is provided at the end of the wire-passing channel, and a double-sided toothed belt for twisting the core wire is provided in the core wire pre-twisting device; a twisting die is provided at the end of the core wire pre-twisting device, and the twisted core wire enters a star-twisting main machine after passing through the twisting die; a rotating twisting bow and a traction device are provided in the star-twisting main machine; a take-up drum is provided at the end of the traction device. Through the application of the utility model, the cable twisting of four pairs of twisted wires for railway data communication cables can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of star twist machines, in particular to a four-core star twist machine. Background Art

[0002] With the rapid development of high-speed rail technology, higher requirements are put forward for high-precision railway data communication cables. Ordinary cabling machines can no longer meet the performance requirements of railway data communication cables. Therefore, high-precision four-core star twisting machines came into being to achieve the cabling of four twisted pairs of railway data communication cables. Utility Model Content

[0003] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide a four-core star-shaped twisting machine. Through the application of the utility model, the four-pair twisted wires of the railway data communication cable can be twisted into a cable.

[0004] In order to achieve the purpose of this utility model, the technical solution adopted is:

[0005] A four-core star-shaped stranding machine, comprising:

[0006] A wire-paying device, wherein a wire-paying frame is provided in the wire-paying device, a wire-paying end of the wire-paying frame is provided with a wire-tension storage mechanism, a cam and a sensor for controlling the wire-paying tension are provided at one end of a counterweight swing arm of the wire-tension storage mechanism, and the wire-tension storage mechanism is provided with a guide wheel, through which a plurality of core wires are led out;

[0007] A plurality of core wires enter the wire distribution device, which includes a wire distribution plate corresponding to the number of core wires. The wire distribution plate makes the plurality of core wires evenly distributed around the circumference of the wire distribution plate and then enter the wire passing channel of the wire passing device;

[0008] A core wire pre-twisting device is provided at the end of the wire passage, and a double-sided toothed belt for twisting the core wire is provided in the core wire pre-twisting device. After the eccentric core wire is twisted, the eccentric contact points of the core wire and the adjacent core wires are regularly staggered on the circumference of the core wire cross section, so that the cross-sectional positions between the copper cores of the cable over the entire length are evenly symmetrical after the entire roll is twisted;

[0009] The end of the core wire pre-twisting device is provided with a twisting die, and the twisted core wire passes through the twisting die and then enters the star twisting main machine;

[0010] The star-twisted main machine is provided with a rotating twisting bow and a traction device, and the twisting bow and the traction device are driven by the same motor to drive the core wires to be twisted to form a fixed twist pair pitch;

[0011] A take-up drum is arranged at the end of the traction device.

[0012] In a preferred embodiment of the utility model, the pay-off device is provided with a symmetrical first pay-off frame and a second pay-off frame, and the first pay-off frame is provided with two core wire pay-off drums;

[0013] The second pay-off frame is provided with two core wire pay-off drums.

[0014] In a preferred embodiment of the present invention, the branching device is four sub-branching trays.

[0015] In a preferred embodiment of the present invention, the linear speed of the traction device is controlled by exchanging gears.

[0016] In a preferred embodiment of the present invention, the pitch of the traction device is controlled by a double-twisting mechanism and a yarn binding mechanism.

[0017] In a preferred embodiment of the present invention, the take-up reel is controlled by a magnetic powder clutch.

[0018] The beneficial effects of the utility model are:

[0019] The application of the utility model can realize the cabling of four twisted pairs of railway data communication cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 It is a schematic structural diagram of the wire-releasing device of the utility model.

[0022] Figure 3 The structure of the core wire pre-twisting device of the utility model is shown in FIG. Figure 1 .

[0023] Figure 4 The structure of the core wire pre-twisting device of the utility model is shown in FIG. Figure 2 .

[0024] Figure 5 This is a schematic diagram of the structure of the star-twisted main engine of the utility model. Figure 1 .

[0025] Figure 6 This is a schematic diagram of the structure of the star-twisted main engine of the utility model. Figure 2 . DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below through the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the scope of the utility model. In addition, in the following structure, the description of the well-known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or component referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] like Figure 1-6 A four-core star-shaped twisting machine shown in the figure includes a pay-off device 100, in which a pay-off frame 110 is arranged, and a tension wire storage mechanism 120 is arranged at the pay-off end of the pay-off frame 110, and a cam 122 and a sensor 123 for controlling the pay-off tension are arranged at one end of a counterweight swing arm 121 of the tension wire storage mechanism 120, and a guide wheel 124 is arranged on the tension wire storage mechanism 120, and a plurality of core wires 10 are guided out through the guide wheel 124. Specifically, a first pay-off frame 101 and a second pay-off frame 102 are symmetrically arranged in the pay-off device 100, two core wire pay-off drums are arranged on the first pay-off frame 101, and two core wire pay-off drums are arranged on the second pay-off frame 102, so that four core wires can be paid out at one time.

[0029] The four released core wires 10 enter the wire splitting device 200, which includes a wire splitting disk 210 corresponding to the number of core wires. The wire splitting disk 210 makes the four core wires 10 evenly distributed on the circumference of the wire splitting disk 210 and then enter the wire passing channel 310 of the wire passing device 300.

[0030] A core wire pre-twisting device 400 is provided at the end of the wire passage 310. A double-sided toothed belt 410 controlled by a motor is provided in the core wire pre-twisting device 400 for twisting the core wire. After the eccentric core wire 10 is twisted, the eccentric contact points of the core wire 10 with the adjacent core wires are regularly staggered on the circumference of the core wire cross section, so that the cross-sectional positions between the copper cores of the cable are evenly symmetrical over the entire length after the entire roll is twisted.

[0031] A twisting die 420 is provided at the end of the core wire pre-twisting device 400 , and the twisted core wire 10 passes through the twisting die 420 and then enters the star twisting main machine 500 .

[0032] A rotating twisting bow 510 and a traction device 520 are provided in the star twisting main machine 500. The twisting bow 510 and the traction device 520 are driven by the same motor to drive the core wire 10 to be twisted to form a fixed twist pair pitch. The linear speed of the traction device 520 is controlled by the exchange gear 530, and the pitch of the traction device 520 is controlled by the double twisting mechanism 540 and the yarn binding mechanism 550.

[0033] This is because the wire passes through the two supporting points of the bow, so one turn of the bow can produce two pitches called double twist. The relationship between pitch length T, bow speed n, and traction line speed V is: 2T = V / n. Since the equipment production requires different pitches T, and the bow speed n and traction line speed V are driven by the same motor, the traction line speed V can be changed by changing the transmission ratio by exchanging gears when the bow speed n remains unchanged, so that different pitches T are produced.

[0034] A take-up drum 560 is provided at the end of the traction device 520, and the take-up drum 560 is controlled by a magnetic powder clutch 570. The wire coming out of the traction device is wound on the take-up drum 560 controlled by the magnetic powder clutch 570, completing the entire process from wire release to twisting and taking up.

[0035] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above.

[0036] Those skilled in the art should understand that the present invention is not limited by the above-mentioned embodiments. The above-mentioned embodiments and the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which shall fall within the scope of the present invention to be protected. The scope of protection of the present invention shall be defined by the attached claims and their equivalents.

Claims

1. A four-core star-shaped twisting machine, characterized in that: include: A wire-paying device, wherein a wire-paying frame is provided in the wire-paying device, a wire-paying end of the wire-paying frame is provided with a wire-tension storage mechanism, a cam and a sensor for controlling the wire-paying tension are provided at one end of a counterweight swing arm of the wire-tension storage mechanism, and the wire-tension storage mechanism is provided with a guide wheel, through which a plurality of core wires are led out; A plurality of core wires enter the wire distribution device, which includes a wire distribution plate corresponding to the number of core wires. The wire distribution plate makes the plurality of core wires evenly distributed around the circumference of the wire distribution plate and then enter the wire passing channel of the wire passing device; A core wire pre-twisting device is provided at the end of the wire passage, and a double-sided toothed belt for twisting the core wire is provided in the core wire pre-twisting device. After the eccentric core wire is twisted, the eccentric contact points of the core wire and the adjacent core wires are regularly staggered on the circumference of the core wire cross section, so that the cross-sectional positions between the copper cores of the cable over the entire length are evenly symmetrical after the entire roll is twisted; The end of the core wire pre-twisting device is provided with a twisting die, and the twisted core wire passes through the twisting die and then enters the star twisting main machine; The star-twisted main machine is provided with a rotating twisting bow and a traction device, and the twisting bow and the traction device are driven by the same motor to drive the core wires to be twisted to form a fixed twist pair pitch; A take-up drum is arranged at the end of the traction device.

2. A four-core star-shaped stranding machine as claimed in claim 1, characterized in that: The pay-off device is provided with a symmetrical first pay-off frame and a second pay-off frame, and the first pay-off frame is provided with two core wire pay-off drums; The second pay-off frame is provided with two core wire pay-off drums.

3. A four-core star-shaped stranding machine as claimed in claim 1, characterized in that: The line distribution device is four sub-line distribution boards.

4. A four-core star-shaped stranding machine as claimed in claim 1, characterized in that: The linear speed of the traction device is controlled by exchanging gears.

5. A four-core star-shaped stranding machine as claimed in claim 1, characterized in that: The pitch of the traction device is controlled by a double-twisting mechanism and a yarn binding mechanism.

6. A four-core star-shaped stranding machine as claimed in claim 1, characterized in that: The take-up reel is controlled by a magnetic powder clutch.

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