Cage type wire stranding device and composite cable manufacturing method

Abstract

The invention provides a cage type wire stranding device and a composite cable manufacturing method, and the device comprises a cage stranding mechanism which is used for stranding a plurality of single wires, a cage stranding driving mechanism, a traction mechanism which is used for pulling a cable, a traction driving mechanism, a rotation speed sensor which is used for detecting the rotation speed of a cage body, and a cage stranding control mechanism. Wherein the cage stranding control mechanism controls the traction driving mechanism according to the cage body rotating speed measured by the rotating speed sensor, so that the traction speed of the traction mechanism is matched with the cage body rotating speed, the traction speed of the cable can be automatically adjusted according to the cage body rotating speed, and in the whole cable stranding process, the traction speed of the cable can be automatically adjusted. The speed of twisting and cabling of the plurality of cables and the advancing speed of the cables are always kept in a predetermined adaptive relationship, so that the formed composite cable has uniform diameter and cabling pitch, and the quality of the composite cable is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of cable manufacturing equipment, and in particular relates to a cage-type stranding device and a composite cable manufacturing method using the device. Background Art

[0002] Cables are used to transmit power and / or signals and are widely used in various fields. In addition to single cables, there are also composite cables formed by twisting multiple cables in the prior art. Such composite cables have better bending performance, tensile strength and better electrical performance, and are more applicable.

[0003] Generally, multiple cables are twisted into composite cables by a twisting machine, one of which is a cage-type twisting machine. The cage-type twisting machine usually includes a cage twisting mechanism, a traction mechanism and a wire-taking mechanism, wherein the cage twisting mechanism includes a rotatable cage, a cage twisting drive motor driving the cage to rotate, and a winch with multiple threading holes, the cage includes multiple cable frames for carrying cable drums, and the cables on the multiple cable drums are led out and passed through the threading holes on the winch respectively; the traction mechanism usually includes a traction wheel and a traction drive motor driving the traction wheel to rotate, and the composite cable is wound on the traction wheel. With the rotation of the cage and the advancement of the composite cable under the traction of the traction mechanism, multiple cables are continuously twisted to form a composite cable.

[0004] At present, in such cage-type stranding machines, the cage-twisting drive motor and the traction drive motor usually adopt asynchronous motors, and the rotation speeds of the two are controlled separately, so that the cage rotates at a certain rotation speed, and the traction mechanism pulls the composite cable forward at a certain traction speed. By controlling the rotation speed of the cage and the traction speed of the traction mechanism, the diameter and cabling pitch of the composite cable can be controlled, and composite cables of various specifications can be manufactured. However, such cage-type stranding machines still have some shortcomings: first, due to the use of two asynchronous motors, the equipment cost is relatively high; second, due to the separate control of the rotation speeds of the two guide motors, during the cable stranding process, the rotation speeds of the two asynchronous motors cannot always maintain a good corresponding relationship, that is, the rotation speed of the cage and the traction speed of the cable cannot always maintain a good matching relationship, resulting in the instability of the diameter and cabling pitch of the manufactured composite cable, which in turn affects the bending performance and strength of the composite cable, and also leads to high material costs for the composite cable. Summary of the invention

[0005] The present invention is made to solve the above problems, and aims to provide a cage-type stranding device with lower cost and good matching between the cage rotation speed and the cable pulling speed, so as to manufacture a composite cable with uniform diameter and cable pitch, and a method for manufacturing a composite cable using the device. The present invention adopts the following technical solutions:

[0006] The present invention provides a cage-type stranding device, which is used to strand multiple cables into a composite cable, and is characterized in that it includes: a cage stranding mechanism, including a cage body of a cable drum for carrying multiple cables and a stranding assembly for gathering and stranding multiple cables extending from the multiple cable drums; a cage stranding drive mechanism, which is used to drive the cage body to rotate, so that the multiple cables at the stranding assembly are stranded into the composite cable; a traction mechanism, which is used to pull the composite cable to move it in a forward direction; a traction drive mechanism, which is used to drive the traction mechanism to move the composite cable; a detection mechanism, which includes a speed sensor for detecting the rotation speed of the cage body; and a cage stranding control mechanism, which controls the traction drive mechanism according to the measured rotation speed of the cage body, so that the traction speed of the traction mechanism matches the rotation speed of the cage body.

[0007] The cage-type stranding device provided by the present invention may also have such technical features, wherein the cage-stranding drive mechanism includes a cage-stranding drive motor for driving the cage body to rotate, the speed sensor is used to detect the speed of the cage-stranding drive motor, the traction drive mechanism includes at least one traction wheel and a traction drive motor for driving the traction wheel to rotate, the composite cable is wound on the traction wheel, and the cage-stranding control mechanism includes: a current cage body speed acquisition unit, used to acquire the speed measured by the speed sensor and convert the speed into the current cage body speed of the cage body; a corresponding traction speed calculation unit, based on a predetermined standard pitch range of the composite cable and the current cage body speed, calculates the traction speed of the traction mechanism that can keep the pitch of the composite cable within the standard pitch range as the corresponding traction speed; and a corresponding traction speed output unit, converting the corresponding traction speed into the speed of the traction drive motor according to the parameters of the traction drive motor, and outputting the speed to the traction drive motor.

[0008] The cage-type stranding device provided by the present invention may also have such a technical feature, wherein the cage-stranding drive motor is an asynchronous motor, and the traction drive motor is a servo motor.

[0009] The cage-type stranding device provided by the present invention may also have such a technical feature, wherein the calculation formula for the corresponding traction speed v1 is: v1=nH, wherein n is the current cage rotation speed, and H is the standard pitch of the composite cable.

[0010] The cage-type wire twisting device provided by the present invention may also have such technical features, and also includes: a wire-taking mechanism, including a wire-taking frame and a wire-taking drum rotatably arranged on the wire-taking frame; and a wire-taking drive mechanism, including a wire-taking drive motor and a wire-taking pulley group, the wire-taking drive motor is connected to the rotating shaft of the wire-taking drum through the wire-taking pulley group, wherein the cage-twisting control mechanism also includes: a corresponding wire-taking speed calculation unit, which obtains the corresponding wire-taking speed of the wire-taking mechanism as the corresponding wire-taking speed according to the corresponding traction speed; and a corresponding wire-taking speed output unit, which converts the corresponding wire-taking speed into a rotational speed of the wire-taking drive motor according to the parameters of the wire-taking drive motor, and outputs the rotational speed to the wire-taking drive motor.

[0011] The cage-type stranding device provided by the present invention may also have such technical features, wherein the detection mechanism also includes a diameter gauge arranged downstream of the cage stranding mechanism, for detecting the diameter of the composite cable, and the cage stranding control mechanism also includes: a current diameter acquisition unit, for acquiring the diameter of the composite cable measured by the diameter gauge as the current diameter; a diameter adjustment determination unit, for determining that the diameter of the composite cable needs to be adjusted when the current diameter exceeds a predetermined standard diameter range; an adjusted cage speed calculation unit, for calculating the adjusted cage speed of the cage drive motor according to the current cage speed, the current diameter and the standard diameter range when the diameter adjustment determination unit determines that the diameter of the composite cable needs to be adjusted; and an adjusted cage speed output unit, for outputting the adjusted cage speed to the cage drive motor.

[0012] The cage-type stranding device provided by the present invention may also have such a technical feature, wherein the current diameter acquisition unit acquires multiple diameter values ​​of the composite cable measured by the diameter gauge within a predetermined time period, and uses the maximum value thereof as the current diameter.

[0013] The cage-type stranding device provided by the present invention may also have such a technical feature, wherein the predetermined time length t0 satisfies the following relationship: t0>H / v, where H is the standard pitch of the composite cable and v is the current traction speed of the traction mechanism.

[0014] The cage-type stranding device provided by the present invention may also have such a technical feature, wherein the adjusted cage body speed calculation unit adds a predetermined value to the current cage body speed as the adjusted cage body speed when the current diameter is greater than the maximum value in the standard diameter range, and subtracts the predetermined value from the current cage body speed as the adjusted cage body speed when the current diameter is less than the minimum value in the standard diameter range.

[0015] The present invention provides a composite cable manufacturing method, characterized in that the above-mentioned cage-type stranding device is used to strand multiple cables into a composite cable, and the method comprises the following steps: the cage stranding drive mechanism drives the cage body to rotate, so that the multiple cables at the stranding assembly are stranded into the composite cable, and at the same time, the traction drive mechanism drives the traction mechanism to pull the composite cable to move in a forward direction; the cage stranding control mechanism controls the traction drive mechanism according to the rotation speed of the cage body measured by the rotation speed sensor, so that the traction speed of the traction mechanism matches the rotation speed of the cage body.

[0016] Function and Effect of the Invention

[0017] According to the cage-type stranding device and the composite cable manufacturing method of the present invention, the device includes a cage stranding mechanism for stranding multiple single wires, a cage stranding drive mechanism, a traction mechanism for traction cables, a traction drive mechanism, a speed sensor for detecting the cage rotation speed, and a cage stranding control mechanism, wherein the cage stranding control mechanism controls the traction drive mechanism according to the cage rotation speed measured by the speed sensor, so that the traction speed of the traction mechanism matches the cage rotation speed, and thus can automatically adjust the traction speed of the cable according to the cage rotation speed, so that during the entire cable stranding process, the speed of stranding multiple cables into cables and the speed of cable advancement always maintain a predetermined adaptation relationship, so that the formed composite cable has a uniform diameter and cabling pitch, thereby improving the quality of the composite cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional diagram of a cage-type stranding device according to an embodiment of the present invention;

[0019] Figure 2 is a side view of a cage-type stranding device according to an embodiment of the present invention;

[0020] Figure 3 is a three-dimensional diagram of a cage stranding mechanism and a cage stranding driving mechanism in an embodiment of the present invention;

[0021] Figure 4 3D diagrams of the cage twisting mechanism and the cage twisting driving mechanism at different angles in an embodiment of the present invention;

[0022] Figure 5 is a three-dimensional diagram of a guide mechanism in an embodiment of the present invention;

[0023] Figure 6 is a three-dimensional diagram of a traction mechanism and a traction drive mechanism in an embodiment of the present invention;

[0024] Figure 7 is a three-dimensional diagram of a wire taking-up mechanism and a wire taking-up drive mechanism in an embodiment of the present invention;

[0025] Figure 8is a block diagram of a cage control mechanism in an embodiment of the present invention;

[0026] Fig. 9 4 is a flow chart of a composite cable manufacturing method according to an embodiment of the present invention.

[0027] Reference numerals:

[0028] Cage type stranding device 100; cage stranding mechanism 110; cage stranding mechanism frame 111; first frame member 1111; second frame member 1112; main shaft 112; wire supply assembly 113; wire supply bearing roller 1131; wire supply guide column 1132; cage body 114; first rotating disk 1141; second rotating disk 1142; connecting pipe 1143; cable frame 1144; stranding assembly 115; capstan 1151; guide seat 1152; cage stranding drive Driving mechanism 120; cage drive motor 121; driven gear 122; cable frame drive gear 123; guide mechanism 130; vertical support 131; first load-bearing roller 132; first guide column 133; guide load-bearing wheel 134; guide pressure wheel 135; second guide column 136; second load-bearing roller 137; traction mechanism 140; traction frame 141; active traction wheel 142; driven traction wheel 143; traction drive mechanism 150 ; Traction drive motor 151; Traction drive gear 152; Ring gear 153; Take-up mechanism 160; Take-up frame 161; Take-up guide post 162; Take-up reel 163; Take-up drive mechanism 170; Take-up drive motor 171; Take-up pulley group 172; Cage twisting control mechanism 190; Twisting data storage unit 1901; Input display unit 1902; Cage initial speed determination unit 1903; Cage initial speed output unit 1904; Current cage speed acquisition unit 1905; Corresponding traction speed calculation unit 1906; Corresponding traction speed output unit 1907; Corresponding take-up speed calculation unit 1908; Corresponding take-up speed output unit 1909; Current diameter acquisition unit 1910; Diameter adjustment determination unit 1911; Adjusted cage speed calculation unit 1912; Adjusted cage speed output unit 1913; Cage twisting control unit 1914; Composite cable 90; Cable 91. DETAILED DESCRIPTION

[0029] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the cage-type stranding device and the composite cable manufacturing method of the present invention are specifically described below in conjunction with embodiments and drawings.

[0030] <Example>

[0031] The present embodiment provides a cage-type stranding device and a corresponding composite cable manufacturing method, which are used to strand a plurality of cables into a composite cable with a predetermined diameter and a predetermined pitch.

[0032] Figure 1and Figure 2 They are respectively a stereoscopic view and a side view of the cage type stranding device in this embodiment.

[0033] like Figure 1 and Figure 2 As shown, the cage-type stranding device 100 includes a cage stranding mechanism 110, a cage stranding drive mechanism 120, a guiding mechanism 130, a traction mechanism 140, a traction drive mechanism 150, a wire take-up mechanism 160, a wire take-up drive mechanism 170, a detection mechanism 180, and a cage stranding control mechanism 190. The cage stranding mechanism 110 is used to carry a plurality of cable drums, and the cables thereof are respectively led out and stranded to form a composite cable. The cage stranding drive mechanism 120 is used to drive the cage stranding mechanism 110 to strand a plurality of cables. The guiding mechanism 130 is used to guide the cables between the cage stranding mechanism 110 and the traction mechanism 140. The traction mechanism 140 is used to pull the composite cable to make it move in a predetermined direction, so that the composite cable is continuously formed and has a certain diameter and pitch. The traction drive mechanism 150 is used to drive the traction mechanism 140 to pull the composite cable. The wire-taking mechanism 160 is used to take up the twisted composite cable and wind it onto a winding drum for temporary storage, and the wire-taking drive mechanism 170 is used to drive the wire-taking mechanism 160 to take up the cable. The detection mechanism 160 is used to perform relevant detection, and the cage twisting control mechanism 170 controls the twisting process of the composite cable according to the data measured by the detection mechanism 160.

[0034] Figure 3 is a three-dimensional diagram of the cage twisting mechanism and the cage twisting driving mechanism in this embodiment, Figure 4 It is a stereoscopic diagram of the cage twisting mechanism and the cage twisting driving mechanism at different angles in this embodiment.

[0035] like Figure 3 and Figure 4 As shown, the cage-twisting mechanism 110 includes a cage-twisting mechanism frame 111 , a main shaft 112 , a wire supply assembly 113 , a cage body 114 and a twisting assembly 115 .

[0036] The cage-twisting mechanism frame 111 includes a first frame member 1111 and a second frame member 1112 , both of which are fixed on the ground.

[0037] The main shaft 112 is a hollow shaft, and two ends thereof are rotatably mounted on the first frame member 1111 and the second frame member 1112 , respectively. The main shaft 112 is used to drive the cage body 114 to rotate.

[0038] The wire supply assembly 113 includes a wire supply bearing roller 1131 and two wire supply guide posts 1132, which are used to guide the cable into the cage twisting mechanism 110 as the cable in the middle of the composite cable. For the convenience of description, the cable is referred to as the middle cable below. Specifically, along the forward direction of the cable, the middle cable is sequentially carried on the wire supply bearing roller 1131, clamped between the two wire supply guide posts 1132, and then guided into the through hole in the main shaft 112, and then enters the twisting assembly 115 after passing through the through hole of the main shaft 112.

[0039] The cage body 114 includes a first rotating disk 1141, a second rotating disk 1142, a connecting pipe 1143, a plurality of cable forming frames 1144 and a plurality of wire passing wheels (not shown in the figure).

[0040] The first rotating disk 1141 is circular, with a center hole at the center, and a plurality of large circular lightening holes and a plurality of mounting holes for reducing the weight of the structure are arranged around the center hole. The plurality of through holes are centrally symmetrically distributed along the center of the first rotating disk 1141, and the mounting holes are arranged between two adjacent lightening holes. The structure of the second rotating disk 1142 is similar to that of the first rotating disk 1141, and the two have the same diameter. The only difference is that the number of lightening holes on the second rotating disk 1142 is relatively less. The connecting tube 1143 is a hollow circular tube, and the two ends are respectively connected to the center hole of the first rotating disk 1141 and the center hole of the second rotating disk 1142. The connecting tube 1143 is sleeved on the main shaft 112 and can rotate with the main shaft 112, so that the first rotating disk 1141 and the second rotating disk 1142 rotate with the main shaft 112.

[0041] A plurality of cable forming frames 1144 are respectively connected between the edge of the first turntable 1141 and the edge of the second turntable 1142, and are respectively used to carry a plurality of cable reels and lead out the cables wound thereon. Specifically, the cable forming frame 1145 includes a square frame, a support rod installed in the square frame, a connecting rod connected to the middle of one end of the square frame in the length direction, and a hollow connecting rod (wire passer) connected to the middle of the other end of the square frame in the length direction. One end of the square frame is rotatably connected to the mounting hole on the second turntable 1142 through the connecting rod, and the other end of the square frame is rotatably connected to the mounting hole on the first turntable 1141 through the hollow connecting rod. In this embodiment, the number of the cable forming frames 1144 is three.

[0042] A plurality of wire passing wheels are mounted on the surface of the first rotating disk 1141 away from the second rotating disk 1142 through corresponding brackets and are respectively located beside the mounting holes of the first rotating disk 1141. The wire passing wheels are used to guide the cables led out from the cable drum in the cable forming frame 1144. In this embodiment, the number of the wire passing wheels is also three.

[0043] The twisting assembly 115 is used to twist a plurality of cables drawn from a plurality of cable drums on the cage 114 onto a middle cable drawn from the main shaft 112 , thereby forming a composite cable. The twisting assembly 115 includes a capstan 1151 and a guide seat 1152 .

[0044] The capstan 1151 is used to twist a plurality of cables drawn out from a plurality of cable drums on the cage 114 onto a middle cable drawn out from the main shaft 112 to form a composite cable. The guide seat 1152 is used to lead out the formed composite cable.

[0045] The cage twisting drive mechanism 120 includes a cage twisting drive motor 121, a transmission assembly, a main gear (not shown in the figure), a plurality of slave gears 122 and a plurality of cabling frame drive gears 123. The output end of the cage twisting drive motor 121 is connected to the main gear through the transmission assembly. The main gear is fixedly mounted on one end of the main shaft 112 to drive the main shaft 112 to rotate. The plurality of slave gears 122 are rotatably connected to the second rotating disk 1142 and are respectively meshed with the main gear. The plurality of cabling frame drive gears 123 are respectively fixedly mounted on the connecting rods of the respective cabling frames 1144 and are respectively meshed with the corresponding slave gears 122. Therefore, driven by the cage twisting drive motor 121, the main gear rotates at a certain speed, driving the main shaft 112 and the cage body 120 to rotate, while driving the slave gear 122 and the cable frame driving gear 123 to rotate, and then driving the cable frame 1144 to rotate in the opposite direction, so that during the rotation of the cage body 114, the cable frame 1144 moves with the rotation of the cage body 120, but the direction of the cable frame 1144 remains basically unchanged.

[0046] Figure 5 It is a three-dimensional diagram of the guiding mechanism in this embodiment.

[0047] like Figure 5 As shown, the guide mechanism 130 includes a vertical bracket 131, a first bearing roller 132, two first guide posts 133, a guide bearing wheel 134, a guide pressure wheel 135, two second guide posts 136 and two second bearing rollers 137. The guide pressure wheel 135 and the guide bearing wheel 134 are arranged up and down, and the first guide post 133 and the second guide post 136 are respectively arranged on both sides of the guide bearing wheel 134. The first bearing roller 132 and the second bearing roller 137 are respectively arranged on both sides of the guide bearing wheel 134, and are farther away from the guide bearing wheel 134 than the first guide post 133 and the second guide post 136. Along the advancing direction of the cable, the composite cable is sequentially carried on the first bearing roller 132, clamped between the two first guide posts 133, carried on the guide bearing wheel 134 and pressed by the upper guide pressure wheel 135, clamped between the two second guide posts 136, and carried on the second bearing roller 137.

[0048] Figure 6 It is a three-dimensional diagram of the traction mechanism and the traction drive mechanism in this embodiment.

[0049] like Figure 6 As shown, the traction mechanism 140 includes a traction frame 141, a driving traction wheel 142, and a driven traction wheel 143. The circumference of the driving traction wheel 142 has a plurality of winding grooves for winding cables, and the structure of the driven traction wheel 143 is similar to that of the driving traction wheel 142, and the diameter of the driven traction wheel 143 is smaller than that of the driving traction wheel 142. Both the driving traction wheel 142 and the driven traction wheel 143 are rotatably mounted on the traction frame 141 through corresponding rotating shafts.

[0050] The traction drive mechanism 150 includes a traction drive motor 151, a traction drive gear 152 and a ring gear 153. The traction drive gear 152 has a relatively small diameter and is connected to the output end of the traction drive motor 151 through a corresponding connecting shaft. The ring gear 153 has a diameter slightly smaller than that of the driving pulley 142 and is fixedly mounted on a radial surface of the driving traction pulley 142 and meshes with the traction drive gear 152. Therefore, under the drive of the traction drive motor 151, the traction drive gear 152 rotates, driving the ring gear 153 and the driving traction pulley 142 to rotate.

[0051] Figure 7 It is a stereoscopic diagram of the wire taking-up mechanism and the wire taking-up drive mechanism in this embodiment.

[0052] like Figure 7 As shown, the wire-taking mechanism 160 includes a wire-taking frame 161 , two wire-taking guide posts 162 disposed on the wire-taking frame 161 , and a wire-taking drum 163 rotatably disposed on the wire-taking frame 161 .

[0053] The wire-receiving drive mechanism 170 includes a wire-receiving drive motor 171 and a wire-receiving pulley set 172. The output end of the wire-receiving drive motor 171 is connected to the rotating shaft of the wire-receiving drum 163 through the wire-receiving pulley set 172. Therefore, under the drive of the wire-receiving drive motor 171, the wire-receiving drum 163 rotates, driving the composite cable to be wound around the wire-receiving drum 163.

[0054] When in use, multiple cable drums are respectively arranged in each cable frame 1144 of the cage stranding mechanism 110, and the support rod of the cable frame 1144 passes through the through hole in the middle of the cable drum. Multiple cables are respectively led out from each cable drum, pass through the hollow connecting rod of the cable frame 1144 and are carried on the corresponding wire wheel, and then extend to the winch 1151, twisted into a composite cable, and the composite cable passes through the guide seat 1152 and extends to the guide mechanism 130, and then is guided by the guide mechanism 130 to the traction mechanism 140. After the composite cable is wound on the active traction wheel 142 and the driven traction wheel 143 for several turns, it is extended from the driven traction wheel 143 and connected to the take-up drum 163 of the take-up mechanism 160.

[0055] Driven by the cage twisting drive motor 121, the cage body 114 rotates continuously, and driven by the traction drive motor 151, the formed composite cable is continuously pulled toward a predetermined forward direction, so that multiple cables led out from the cage body 114 are twisted into a composite cable at the capstan 1151.

[0056] The detection mechanism includes a rotation speed sensor and a diameter gauge.

[0057] The speed sensor is arranged at the cage-twisting drive motor 121 to detect the speed of the cage-twisting drive motor 121, and the speed can be converted into the speed of the cage body 114 according to the structure of the transmission assembly between the cage-twisting drive motor 121 and the main gear. In an alternative solution, other methods in the prior art can also be used to measure the speed of the cage body 114, for example, a photoelectric sensor arranged next to the cage body 114 is used to obtain the speed of the cage body 114.

[0058] The diameter gauge is arranged downstream of the cage stranding mechanism 110 to detect the diameter of the manufactured composite cable. In this embodiment, the diameter gauge is arranged between the cage stranding mechanism 110 and the guide mechanism 130 .

[0059] Figure 8 is a block diagram of the cage control mechanism in this embodiment.

[0060] like Figure 8 As shown, the cage twisting control mechanism 190 includes a data storage unit 1901 for twisting wire, an input display unit 1902, a cage initial speed determination unit 1903, a cage initial speed output unit 1904, a current cage speed acquisition unit 1905, a corresponding traction speed calculation unit 1906, a corresponding traction speed output unit 1907, a corresponding winding speed calculation unit 1908, a corresponding winding speed output unit 1909, a current diameter acquisition unit 1910, a diameter adjustment determination unit 1911, an adjusted cage speed calculation unit 1912, an adjusted cage speed output unit 1913 and a cage twisting control unit 1914.

[0061] The twisted wire data storage unit 1901 stores twisted wire data, including the cable model of the composite cable and the number of single cables corresponding to the cable model, the standard diameter range and standard pitch range of the composite cable, and the initial rotation speed of the cage.

[0062] The input display unit 1902 is used for the operator to input the cable model of the composite cable to be produced.

[0063] The cage initial rotation speed determination unit 1903 searches the twisted wire data storage unit 1901 according to the input cable model, and determines the corresponding cage initial rotation speed.

[0064] The cage initial speed output unit 1904 converts the cage initial speed into the initial speed of the cage drive motor 121 according to the parameters of the cage drive motor 121 and the corresponding relationship between the speed of the cage drive motor 121 and the speed of the cage 114, records it as the cage motor initial speed, and outputs the cage motor initial speed to the cage drive motor 121. The corresponding relationship between the speed of the cage drive motor 121 and the speed of the cage 114 depends on the transmission structure between the cage drive motor 121 and the main gear, and the corresponding relationship can be preset.

[0065] The current cage speed acquisition unit 1905 is used to obtain the speed measured by the speed sensor, and convert the speed into the speed of the cage 114 as the current cage speed according to the parameters of the cage twist drive motor 121 and the corresponding relationship between the speed of the cage twist drive motor 121 and the speed of the cage 114.

[0066] The corresponding traction speed calculation unit 1906 searches the twisted wire data storage unit 1901 according to the input cable model to obtain the corresponding standard pitch, and based on the standard pitch and the current cage rotation speed obtained, calculates the traction speed of the traction mechanism 140 that can keep the pitch of the composite cable within the standard pitch range as the corresponding traction speed.

[0067] Specifically, assuming that the measured current cage speed is n and the set standard pitch is H, the calculation formula for the corresponding traction speed v1 is:

[0068] v1=nH

[0069] When H is the standard pitch range, the maximum and minimum values ​​in the standard pitch range can be taken respectively, and the maximum and minimum values ​​of the corresponding traction speed v1 can be calculated by the above formula to obtain the numerical range of the corresponding traction speed v1, and the minimum value or median value in the numerical range can be taken as the corresponding traction speed v1.

[0070] The corresponding traction speed output unit 1907 converts the corresponding traction speed into the rotation speed of the traction drive motor 151 according to the parameters of the traction drive motor 151 , records it as the corresponding traction motor rotation speed, and outputs the corresponding traction motor rotation speed to the traction drive motor 151 .

[0071] The corresponding wire-receiving speed calculation unit 1908 obtains the corresponding wire-receiving speed of the wire-receiving mechanism 160 according to the corresponding pulling speed. In this embodiment, the wire-receiving speed is set to be the same as the corresponding pulling speed.

[0072] The corresponding take-up speed output unit 1909 converts the corresponding take-up speed into the rotation speed of the take-up drive motor 171 according to the parameters of the take-up drive motor 171 , records it as the corresponding take-up motor rotation speed, and outputs the corresponding take-up motor rotation speed to the take-up drive motor 171 .

[0073] The current diameter acquisition unit 1910 is used to acquire the diameter of the composite cable measured by the diameter gauge as the current cable diameter. Specifically, the current diameter acquisition unit 1910 continuously acquires multiple diameter values ​​of the composite cable within a predetermined time period, and uses the maximum value of the multiple diameter values ​​as the current cable diameter of the composite cable. The predetermined time period t0 should satisfy the following formula:

[0074] t0>H / v

[0075] Wherein, H is the standard pitch of the composite cable, and v is the current linear speed of the cable, that is, the traction speed of the traction mechanism 140 .

[0076] The diameter adjustment determination unit 1911 searches the twisted wire data storage unit 1901 for the corresponding standard diameter range according to the input cable model, and determines that the cable diameter needs to be adjusted when the measured current cable diameter exceeds the standard diameter range.

[0077] When the diameter adjustment determination unit 1911 determines that the cable diameter needs to be adjusted, the cage speed calculation unit 1912 calculates the cage speed after adjustment according to the difference between the current cage speed, the current cable diameter and the standard diameter range. Specifically, when the current cable diameter is less than the minimum value in the standard diameter range, the current cage speed is subtracted by a predetermined value as the cage speed after adjustment; when the current cable diameter is greater than the maximum value in the standard diameter range, the current cage speed is added by a predetermined value as the cage speed after adjustment.

[0078] The adjusted cage body speed output unit 1913 converts the adjusted cage body speed into the speed of the cage twist drive motor 121 according to the parameters of the cage twist drive motor 121 and the corresponding relationship between the speed of the cage twist drive motor 121 and the speed of the cage body 114, and uses it as the adjusted cage twist motor speed, and outputs the adjusted cage twist motor speed to the cage twist drive motor 121.

[0079] After the speed of the cage 114 is adjusted, the current cage speed acquisition unit 1905 , the corresponding traction speed calculation unit 1906 and the corresponding traction speed output unit 1907 will automatically adjust the traction speed of the traction mechanism 140 to the corresponding traction speed according to the adjusted speed of the cage 114 .

[0080] The cage control unit 1914 is used to control the operation of the above-mentioned functional units.

[0081] Before using the cage-type stranding device 100 to manufacture composite cables, the operator first needs to sequentially place the cable serving as the middle cable on the cable supply assembly 113, pass through the main shaft 112, pass through the center hole of the capstan 1151, pass through the through hole on the guide seat 1152, place it on the guide mechanism 130, place it on the traction mechanism 140, and connect it to the take-up mechanism 160. The operator also needs to install the cable reels of other cables wound around the middle cable in each cable forming frame 1144, and lead multiple cables from each cable reel, carry each cable on the corresponding wire wheel, pass through the corresponding threading hole on the capstan 1151, pass through the through hole on the guide seat 1152, place it on the guide mechanism 130, place it on the traction mechanism 140, and connect it to the take-up mechanism 160. Then, the operator needs to input the model of the composite cable to be produced through the input display unit 1902, and then the production of the composite cable can be started.

[0082] Fig. 9 4 is a flow chart of the composite cable manufacturing method in this embodiment.

[0083] like Fig. 9 As shown, the process of using the cage-type stranding device 100 to strand multiple cables into a composite cable specifically includes the following steps:

[0084] Step S1 : the cage initial rotation speed determination unit 1903 determines the corresponding cage initial rotation speed according to the input cable model.

[0085] In step S2, the cage initial speed output unit 1904 converts the cage initial speed into the initial speed of the cage twisting drive motor 121 and outputs it to the cage twisting drive motor 121. The cage twisting drive motor 121 drives the cage 114 to rotate at the initial speed.

[0086] Step S3 , the current cage rotation speed acquisition unit 1905 acquires the current rotation speed of the cage stranding drive motor 121 measured by the rotation speed sensor, and converts the rotation speed into the current cage rotation speed of the cage 114 .

[0087] Step S4, the corresponding pulling speed calculation unit 1906 retrieves the corresponding standard pitch range according to the input cable model, and calculates the corresponding pulling speed that can keep the pitch of the composite cable within the standard pitch range according to the current cage rotation speed and the standard pitch range.

[0088] In step S5, the corresponding traction speed output unit 1907 converts the corresponding traction speed into the rotation speed of the traction drive motor 151 and outputs it to the traction drive motor 151. The traction drive motor 151 drives the traction mechanism 140 at the rotation speed to pull the composite cable forward at the corresponding traction speed.

[0089] In step S6, the corresponding wire-reeling speed calculation unit 1908 obtains the corresponding wire-reeling speed according to the corresponding pulling speed.

[0090] In step S7, the corresponding take-up speed output unit 1909 converts the corresponding take-up speed into the rotation speed of the take-up drive motor 171 according to the parameters of the take-up drive motor 171, and outputs it to the take-up drive motor 171. The take-up drive motor 171 drives the take-up reel 163 to rotate at the rotation speed.

[0091] Step S8: the current diameter acquiring unit 1910 acquires the current diameter of the composite cable measured by the diameter gauge.

[0092] In step S9, the diameter adjustment determination unit 1911 obtains the corresponding standard diameter range according to the input cable model, and determines whether the diameter of the composite cable needs to be adjusted according to the current diameter and the standard diameter range. When the judgment is no, it returns to step S8, that is, the cable diameter is continuously monitored during the cable manufacturing process.

[0093] Step S10: When it is determined in step S9 that the diameter needs to be adjusted, the cage speed calculation unit 1912 calculates the cage speed after adjustment according to the difference between the current diameter and the standard diameter range.

[0094] In step S11, the adjusted cage speed output unit 1913 converts the adjusted cage speed into the speed of the cage twisting drive motor 121 and outputs it to the cage twisting drive motor 121. The cage twisting drive motor 121 drives the cage 114 to rotate at the adjusted speed, thereby adjusting the diameter of the manufactured composite cable.

[0095] Step S12 , the current cage rotation speed acquiring unit 1905 acquires the current rotation speed of the cage stranding driving motor 121 measured by the rotation speed sensor, and converts the rotation speed into the current cage rotation speed of the cage 114 .

[0096] In step S13, the corresponding pulling speed calculation unit 1906 retrieves the corresponding standard pitch range according to the input cable model, and calculates the corresponding pulling speed that can keep the pitch of the composite cable within the standard pitch range according to the current cage rotation speed and the standard pitch range.

[0097] In step S14 , the corresponding traction speed output unit 1907 converts the corresponding traction speed into the rotation speed of the traction drive motor 151 , and outputs the rotation speed to the traction drive motor 151 .

[0098] Through the above steps, a composite cable can be manufactured, and the pitch and diameter of the composite cable can be automatically controlled during the manufacturing process.

[0099] Example Function and Effect

[0100] According to the cage-type stranding device provided in this embodiment, the device includes a cage stranding mechanism for stranding multiple single wires, a cage stranding drive mechanism, a traction mechanism for traction cables, a traction drive mechanism, a speed sensor for detecting the rotational speed of the cage body, and a cage stranding control mechanism, wherein the cage stranding control mechanism controls the traction drive mechanism according to the cage body rotational speed measured by the speed sensor, so that the traction speed of the traction mechanism matches the cage body rotational speed, and thus can automatically adjust the traction speed of the cable according to the measured cage body rotational speed, so that during the entire cable stranding process, the speed of twisting multiple cables into cables and the speed of cable advancement always maintain a predetermined adaptation relationship, so that the formed composite cable has a uniform diameter and cabling pitch, thereby improving the quality of the composite cable.

[0101] In an embodiment, the cage twisting control mechanism includes a current cage body rotation speed acquisition unit, a corresponding traction speed calculation unit and a corresponding traction speed output unit, which can obtain the current rotation speed of the corresponding cage body based on the measured rotation speed of the cage twisting drive motor, and calculate the corresponding traction speed based on a predetermined standard pitch range of the composite cable and the current rotation speed of the cage body, and convert the traction speed into a rotation speed for driving the traction drive motor for output, thereby enabling the diameter of the formed composite cable to be automatically maintained within a predetermined standard diameter range.

[0102] In the embodiment, the cage stranding drive motor adopts an asynchronous motor, and the traction drive motor adopts a servo motor. Combined with the above control method, not only the equipment cost is lower, but it is also relatively easier to achieve higher control accuracy, so that the cable diameter and cabling pitch are uniform and more accurate.

[0103] In an embodiment, the cage twisting control mechanism also includes a data storage unit for twisted wires, an input display unit, a cage initial speed determination unit, and a cage initial speed output unit. The operator only needs to input the model of the composite cable to be produced, and the cage twisting control mechanism can determine the initial speed of the corresponding cage and output it to the cage twisting drive motor. This is not only more convenient to operate and has lower requirements for the operator, but can also effectively avoid problems caused by misjudgment or erroneous input by the operator in the manual setting method.

[0104] In the embodiment, the cage-type stranding device also includes a wire-taking mechanism and a wire-taking drive mechanism, and the cage-stranding control mechanism also includes a corresponding wire-taking speed calculation unit and a corresponding wire-taking speed output unit. Therefore, it is also possible to automatically wind up the manufactured composite cable at a wire-taking speed that matches the traction speed, so that the composite cable is automatically and stably wound on the wire-taking reel without manual intervention, thereby saving corresponding manpower and time.

[0105] In the embodiment, the cage stranding device also includes a diameter gauge, and the cage stranding control mechanism also includes a current diameter acquisition unit, a diameter adjustment determination unit, an adjusted cage body speed calculation unit, and an adjusted cage body speed output unit, so that the diameter of the manufactured composite cable can be monitored in real time, and the cage body speed is automatically adjusted accordingly when the diameter exceeds the predetermined standard diameter range, so that the diameter of the manufactured composite cable is more accurate. Further, after the cage body speed is automatically adjusted, the current cage body speed acquisition unit, the corresponding traction speed calculation unit, and the corresponding traction speed output unit will automatically adjust the traction speed of the cable accordingly, so that the adjustment of the composite cable diameter will not affect the cabling pitch of the composite cable, and the cabling pitch can still be always maintained within the predetermined standard pitch range.

[0106] The above embodiments are only used to illustrate specific implementation modes of the present invention, and the present invention is not limited to the description scope of the above embodiments.

[0107] In the above embodiment, the cage type stranding device is used to strand multiple cables on a middle cable to form a composite cable. In an alternative solution, the cage type stranding device can also be used to strand multiple cables to form a composite cable, that is, without providing a middle cable.

Claims

1. A cage-type stranding device for stranding a plurality of cables into a composite cable, characterized in that: include: A cage twisting mechanism, comprising a cage body for carrying a cable drum of a plurality of the cables and a twisting assembly for bundling and twisting a plurality of the cables extending from the plurality of the cable drums; A cage twisting drive mechanism, used for driving the cage to rotate, so that the plurality of cables at the twisting assembly are twisted into the composite cable; A traction mechanism, used for traction of the composite cable to move it in a forward direction; A traction drive mechanism, used to drive the traction mechanism to move the composite cable; A detection mechanism, comprising a rotation speed sensor for detecting the rotation speed of the cage; as well as The cage twisting control mechanism controls the traction drive mechanism according to the measured rotation speed of the cage body, so that the traction speed of the traction mechanism matches the rotation speed of the cage body.

2. The cage type stranding device according to claim 1, Features: The cage-twisting drive mechanism includes a cage-twisting drive motor for driving the cage body to rotate, and the speed sensor is used to detect the speed of the cage-twisting drive motor. The traction drive mechanism comprises at least one traction wheel and a traction drive motor for driving the traction wheel to rotate, and the composite cable is wound around the traction wheel. The cage twisting control mechanism comprises: A current cage rotation speed acquisition unit, used to acquire the rotation speed measured by the rotation speed sensor and convert the rotation speed into the current cage rotation speed of the cage; a corresponding traction speed calculation unit, which calculates, based on a predetermined standard pitch range of the composite cable and the current cage rotation speed, a traction speed of the traction mechanism capable of keeping the pitch of the composite cable within the standard pitch range as a corresponding traction speed; and The corresponding traction speed output unit converts the corresponding traction speed into a rotation speed of the traction drive motor according to the parameters of the traction drive motor, and outputs the rotation speed to the traction drive motor.

3. The cage type stranding device according to claim 2, characterized in that: in, The cage drive motor is an asynchronous motor. The traction drive motor is a servo motor.

4. The cage type stranding device according to claim 2, characterized in that: in, The calculation formula for the corresponding traction speed v1 is: v1=nH Wherein, n is the current cage rotation speed, and H is the standard pitch of the composite cable.

5. The cage type stranding device according to claim 2, characterized in that: Also includes: The wire-taking mechanism comprises a wire-taking frame and a wire-taking reel rotatably arranged on the wire-taking frame; as well as The wire-taking drive mechanism comprises a wire-taking drive motor and a wire-taking pulley group, wherein the wire-taking drive motor is connected to the rotating shaft of the wire-taking drum through the wire-taking pulley group. Wherein, the cage twisting control mechanism also includes: a corresponding wire-receiving speed calculating unit, which obtains the corresponding wire-receiving speed of the wire-receiving mechanism according to the corresponding pulling speed as the corresponding wire-receiving speed; and The corresponding wire-reeling speed output unit converts the corresponding wire-reeling speed into a rotation speed of the wire-reeling drive motor according to the parameters of the wire-reeling drive motor, and outputs the rotation speed to the wire-reeling drive motor.

6. The cage type stranding device according to any one of claims 2 to 5, Features: Wherein, the detection mechanism further includes a diameter gauge arranged downstream of the cage stranding mechanism, for detecting the diameter of the composite cable. The cage control mechanism also includes: A current diameter acquisition unit, used for acquiring the diameter of the composite cable measured by the diameter gauge as the current diameter; a diameter adjustment determination unit, which determines that the diameter of the composite cable needs to be adjusted when the current diameter exceeds a predetermined standard diameter range; an adjusted cage speed calculation unit, which calculates the adjusted cage speed of the cage drive motor according to the current cage speed, the current diameter and the standard diameter range when the diameter adjustment determination unit determines that the diameter of the composite cable needs to be adjusted; and The cage body speed output unit is adjusted to output the adjusted cage body speed to the cage body driving motor.

7. The cage type stranding device according to claim 6, characterized in that: in, The current diameter acquisition unit acquires a plurality of diameter values ​​of the composite cable measured by the diameter gauge within a predetermined time period, and uses the maximum value thereof as the current diameter.

8. The cage type stranding device according to claim 7, characterized in that: in, The predetermined time length t0 satisfies the following relationship: t0>H / v Wherein, H is the standard pitch of the composite cable, and v is the current traction speed of the traction mechanism.

9. The cage type stranding device according to claim 6, characterized in that: in, When the current diameter is greater than the maximum value in the standard diameter range, the adjusted cage speed calculation unit adds a predetermined value to the current cage speed as the adjusted cage speed. When the current diameter is smaller than the minimum value in the standard diameter range, the current cage rotation speed minus a predetermined value is used as the adjusted cage rotation speed.

10. A method for manufacturing a composite cable, characterized in that: A plurality of cables are twisted into a composite cable using a cage-type twisting device as described in any one of claims 1 to 9, the method comprising the following steps: The cage twisting drive mechanism drives the cage to rotate, so that the multiple cables at the twisting assembly are twisted into the composite cable, and at the same time, the traction drive mechanism drives the traction mechanism to pull the composite cable to move along the forward direction; The cage twisting control mechanism controls the traction drive mechanism according to the rotation speed of the cage body measured by the rotation speed sensor, so that the traction speed of the traction mechanism matches the rotation speed of the cage body.

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