Double-bow belt high-speed wire twisting equipment

Abstract

The invention relates to double-bow belt high-speed wire twisting equipment, which comprises a pair of coaxially arranged driven shafts, the driving shafts are arranged at the rear ends of the two driven shafts respectively, the driving shafts and the driven shafts are of tubular structures, the rear ends of the driving shafts are connected with a driving system, the front ends of the driving shafts and the rear ends of the corresponding driven shafts are arranged in a gear box in a penetrating mode, and a gear transmission mechanism is arranged in the gear box; the U-shaped frame is arranged between the front ends of the two driven shafts, two side plates of the U-shaped frame are rotationally connected to the front ends of the two driven shafts respectively, and a wire arranging mechanism is arranged between the two side plates of the U-shaped frame; the two ends of the outer bow belt are connected to the outer walls of the two driving shafts respectively, the two ends of the inner bow belt are connected to the outer walls of the two driven shafts respectively, the inner bow belt is located between the outer bow belt and the driving shafts, and the outer bow belt and the inner bow belt are both used for guiding cables. According to the scheme, the stranding efficiency can be multiplied under the condition of the limit rotating speed of the existing equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of high-speed wire stranding equipment, and in particular relates to a double-bow high-speed wire stranding equipment. Background Art

[0002] High-speed stranding machine, also known as wire bundling machine, is a key equipment in wire and cable manufacturing. It is used to twist multiple single conductors into one strand to meet specific process requirements. It is used in wire and cable, aerospace, automobile manufacturing, and electronic and electrical industries to meet the needs of various wire processing. At present, the requirements for high efficiency and low energy consumption of equipment in the industry are increasing day by day.

[0003] The structure of the wire twisting machine is similar to the solution disclosed in the patent application number CN201120555216.6, which has a pair of bow belts, and a left guide wheel and a right guide wheel are respectively arranged at both ends of one of the bow belts. When twisting the wires, the multi-strand cables are inserted from the right guide wheel, and the multi-strand cables are introduced into the left guide wheel along the bow belt. The bow belt is driven to rotate around the axes of the two main shafts by coaxially arranging the left main shaft and the right main shaft, so that the multi-strand cables are twisted once on the left guide wheel and the right guide wheel respectively, that is, the bow belt rotates one circle, and the cables are twisted twice. The above is the working principle of the currently commonly used wire twisting machine.

[0004] Taking the 500# high-efficiency stranding machine commonly used in the market as an example, the main manufacturers are mainly divided into Germany, Japan, Taiwan, China and the southeast coast. The winding spindle speed of the stranding machine manufactured in Germany and Japan can reach 3000rpm, and the southeast coast manufacturers can currently achieve 2300rpm. Under the premise of ensuring equipment stability, noise and vibration requirements, the spindle speed of 3000rmp is the current limit speed of the high-speed stranding machine. Therefore, if you want to improve the stranding efficiency by increasing the speed, it is impossible to continue to break through under the current technical level, so at present, you can only consider improving the structure of the stranding machine to avoid the limitation of the spindle speed on the stranding efficiency improvement. Summary of the invention

[0005] In order to solve the deficiencies of the prior art, the present invention provides a double-bow high-speed wire stranding device, which can double the wire stranding efficiency under the limiting speed condition of the prior equipment.

[0006] In order to achieve the purpose of the present invention, the following scheme is proposed: A double-bow high-speed stranding equipment, comprising: A pair of driven shafts are coaxially arranged, and the front ends of the driven shafts are arranged opposite to each other; A pair of driving shafts are respectively arranged at the rear ends of the two driven shafts. Both the driving shaft and the driven shaft are tubular structures. The rear ends of the driving shafts are respectively rotatably arranged on a mounting seat. The rear ends of the driving shafts are connected with a driving system for driving the two driving shafts to rotate synchronously. The front ends of the driving shafts are respectively coaxially arranged with the rear ends of the corresponding driven shafts through a gear box. A gear transmission mechanism is arranged inside the gear box. The gear transmission mechanism is connected to the driving shaft and the driven shaft at the same time and is used to drive the driven shaft to rotate in the opposite direction of the driving shaft. The driven shaft has the same rotation speed as the driving shaft. The U-shaped frame is arranged between the front ends of the two driven shafts. The two side plates of the U-shaped frame are rotatably connected to the front ends of the two driven shafts. Under the action of gravity, the U-shaped frame is in a downward opening state. The two side plates are used for rotatably connecting the wire drum. The axis of the wire drum is parallel to the axis of the driven shaft. A wire arrangement mechanism is arranged between the two side plates of the U-shaped frame. An outer bow band and an inner bow band, the two ends of the outer bow band are respectively connected to the outer walls of the two driving shafts, the two ends of the inner bow band are respectively connected to the outer walls of the two driven shafts, threading holes are provided at the connection between the side wall of the driving shaft and the outer bow band and at the connection between the side wall of the driven shaft and the inner bow band, the outer bow band and the inner bow band are both in a bow-shaped structure, with the protruding part facing the outside of the driving shaft, and the inner bow band is located between the outer bow band and the driving shaft, and both the outer bow band and the inner bow band are used to guide cables.

[0007] The beneficial effect of the present invention is that four wire twisting processes can be completed when the driving shaft rotates one circle, which can double the wire twisting efficiency compared with the prior art. This method can also be used to reduce the operating speed of the equipment and extend the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.

[0009] Figure 1 A front side view of a preferred embodiment of the present application is shown.

[0010] Figure 2 A rear side view of a preferred embodiment of the present application is shown.

[0011] Figure 3 A cross-sectional view of the inner bow band, outer bow band and U-shaped frame mounting structure of the present application is shown.

[0012] Figure 4 A schematic diagram of the installation structure of the inner bow band, the outer bow band and the U-shaped frame of the present application is shown.

[0013] Figure 5 Shows Figure 4 A partial enlarged view of point A in the middle.

[0014] Figure 6A schematic structural diagram of a U-shaped frame is shown.

[0015] Figure 7 A schematic structural diagram of a gear transmission mechanism is shown.

[0016] Markings in the figure: driven shaft-1, driven gear-11, intermediate gear-12, driving shaft-2, mounting seat-21, driving system-22, transmission shaft-221, gear box-23, driving gear-24, U-shaped frame-3, wire arrangement mechanism-31, rotating drum-32, outer bow belt-41, inner bow belt-42, guide wheel group-43. DETAILED DESCRIPTION

[0017] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the implementation modes of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0018] like Figures 1 to 7 As shown, a double-bow high-speed stranding device comprises: A pair of driven shafts 1 are coaxially arranged, and the front ends of the driven shafts 1 are arranged opposite to each other.

[0019] A pair of driving shafts 2 are respectively arranged at the rear ends of the two driven shafts 1. The driving shaft 2 and the driven shaft 1 are both tubular structures. The rear ends of the driving shafts 2 are respectively rotatably arranged on a mounting seat 21. The rear ends of the driving shafts 2 are connected to a driving system 22 for driving the two driving shafts 2 to rotate synchronously. Synchronous rotation means that the rotation speed and direction are the same. The driving system 22 can be two separately arranged motors, which drive the two driving shafts 2 to rotate synchronously through gear transmission, chain transmission or belt transmission. The front ends of the driving shafts 2 are coaxially arranged at both ends of a gear box 23 with the rear ends of the corresponding driven shafts 1. A gear transmission mechanism is arranged inside the gear box 23. The gear transmission mechanism is simultaneously connected to the driving shaft 2 and the driven shaft 1, and is used to drive the driven shaft 1 to rotate in the opposite direction of the driving shaft 2. The driven shaft 1 has the same rotation speed as the driving shaft 2. In order to achieve the above purpose, the gear transmission mechanism can adopt the following technical solution: a conical toothed disc is arranged at the opposite end of the corresponding driven shaft 1 and the driving shaft 2, the two conical toothed discs are coaxial, and the cone tops are opposite, the two conical toothed discs are meshed with the opposite sides of the same conical gear, the conical gear is set as the driving wheel, and the conical gear is driven to rotate by a motor, so that the two conical toothed discs can be driven to rotate simultaneously through the conical gear, and the rotation directions are opposite, so that the driven shaft 1 and the driving shaft 2 rotate at the same speed and in opposite directions.

[0020] The U-shaped frame 3 is arranged between the front ends of the two driven shafts 1, and the two side plates of the U-shaped frame 3 are rotatably connected to the front ends of the two driven shafts 1 respectively. Under the action of gravity, the U-shaped frame 3 is in a downwardly opened state, and the two side plates are used to rotate and connect the wire drum. Specifically, a rotating drum 32 for connecting the wire drum can be arranged on the inner walls on both sides of the U-shaped frame 3, and a motor for driving the rotating drum 32 to rotate can be arranged on the U-shaped frame 3, so as to achieve the purpose of rotating the wire drum. The axis of the wire drum is parallel to the axis of the driven shaft 1, and a wire arrangement mechanism 31 is arranged between the two side plates of the U-shaped frame 3. The wire arrangement mechanism 31 has the same function as the wire arrangement mechanism disclosed in the patent application number 201120555216.6, and both are used to neatly lay the cables that have completed the stranding process on the cable reel.

[0021] The outer bow band 41 and the inner bow band 42, the two ends of the outer bow band 41 are respectively connected to the outer walls of the two driving shafts 2, and the two ends of the inner bow band 42 are respectively connected to the outer walls of the two driven shafts 1. Threading holes are provided at the connection between the side wall of the driving shaft 2 and the outer bow band 41, and at the connection between the side wall of the driven shaft 1 and the inner bow band 42. The outer bow band 41 and the inner bow band 42 are both in a bow-shaped structure, with the protruding parts facing the outside of the driving shaft 2, and the inner bow band 42 is located between the outer bow band 41 and the driving shaft 2. The outer bow band 41 and the inner bow band 42 are both used to guide cables.

[0022] Specifically, the outer bow band 41 and the inner bow band 42 can use threading holes opened along their respective tracks or installed rings to pass cables through, so as to achieve the purpose of guiding the cables so that the cables move along the tracks of the outer bow band 41 and the inner bow band 42.

[0023] Before twisting the wires, you first need to put the multiple strands of wire on the twisting equipment, such as Figure 3 As shown in the red line trajectory in the figure, the threading trajectory is indicated by red lines for easy observation and understanding. First, the multi-strand cable is inserted into the interior of the active shaft 2 from the rear end of one of the active shafts 2, and then the cable is passed through the threading hole on the active shaft 2, and the cable is passed along the trajectory of the outer bow band 41 to the other end of the outer bow band 41; then the cable is inserted into the threading hole of another active shaft 2, and then the cable is passed through the front end of the active shaft 2, and inserted into the rear end of the driven shaft 1 corresponding to the active shaft 2, and then passed through the threading hole of the driven shaft 1, and the cable is passed along the trajectory of the inner bow band 42 to the other end of the inner bow band 42; then the cable is passed through the threading hole of another driven shaft 1, and passed out from the front end of the driven shaft 1, as shown in FIG. Figure 5 As shown, the cable passing through the front end of the driven shaft 1 is then passed through the cable arrangement mechanism 31 .

[0024] When twisting the wires, the driving system 22 drives the two driving shafts 2 to rotate synchronously, so that the outer bow belt 41 moves and rotates with the driving shaft 2. During the rotation of the outer bow belt 41, it will carry the multiple strands of cable around the rotation of the driving shaft 2, so that the multiple strands of cable are twisted twice at the threading holes of the two driving shafts 2; the driving shaft 2 drives the two driven shafts 1 to rotate through the gear transmission mechanism, and the direction of rotation of the driven shaft 1 is opposite to that of the driving shaft 2, so that two more twisting processes can be formed at the threading holes of the two driven shafts 1. In this way, four twisting processes can be completed when the driving shaft 2 rotates one circle, which doubles the twisting efficiency compared with the prior art. The rotating drum 32 is used to drive the wire drum to rotate, and the wire arrangement mechanism 31 moves the wires that have completed the twisting process along the axial direction of the wire drum, so that the cables are arranged on the wire drum.

[0025] Preferably, Figure 3 As shown, the drive system 22 includes a transmission shaft 221, which is arranged on the outside of the outer bow belt 41 and is parallel to the driving shaft 2. The two ends of the transmission shaft 221 are respectively connected to the rear ends of the two driving shafts 2. The specific connection structure can adopt a synchronous belt drive or a chain drive structure to ensure the transmission efficiency and prevent slipping. The transmission shaft 221 is driven by a motor. This solution only uses one motor to drive the two driving shafts 2 to rotate synchronously.

[0026] Preferably, Figures 1 to 4 As shown, a pair of outer bow bands 41 and inner bow bands 42 are provided, and are symmetrical with respect to the axis of the driven shaft 1 , so as to improve the balance of the driving shaft 2 and the driven shaft 1 during rotation.

[0027] Preferably, Figure 7As shown, the gear transmission mechanism includes: a driving gear 24 coaxially arranged on the driving shaft 2, a driven gear 11 coaxially arranged on the driven shaft 1, and a pair of mutually meshing intermediate gears 12, the driving gear 24 and the driven gear 11 are respectively meshed with one of the intermediate gears 12, and are arranged at intervals with the other intermediate gear 12; specifically, the driving gear 24 can be sleeved on the outside of the driving shaft 2, which can reduce the axial installation size of the double-bow belt twisting mechanism. The driving gear 24 can also be set on the end of the driving shaft 2 opposite to the driven shaft 1, which can reduce the radial installation size of the double-bow belt twisting mechanism; similarly, the driven gear 11 can be sleeved on the outside of the driven shaft 1, or can be set on the end of the driven shaft 1 opposite to the driving shaft 2. When the driving shaft 2 rotates, the driving gear 24 will rotate around the axis in the same direction as the driving shaft 2, and the driving gear 24 will drive the intermediate gear 12 meshing with it to rotate in the opposite direction, and the intermediate gear 12 will drive the intermediate gear 12 meshing with the driven gear 11 to rotate in the same direction as the driving gear 24, while the driven gear 11 will rotate in the opposite direction to the driving gear 24, so that the driven shaft 1 and the driving shaft 2 rotate synchronously around the same axis and in opposite directions, and then drive the outer bow belt 41 and the inner bow belt 42 to rotate in opposite directions at the same speed. The use of the gear box 23 not only realizes the coaxial connection function between the driving shaft 2 and the driven shaft 1, but also integrates the gear transmission mechanism, making the overall structure of the device more compact; during operation, because the driving shaft 2 and the driven shaft 1 rotate in opposite directions, and the weight of the intermediate gear 12 and the gear box 23 themselves, the position of the gear box 23 can be kept constant and will not rotate with the driving shaft 2 or the driven shaft 1.

[0028] Preferably, Figure 3 As shown, in order to reduce the friction between the cable and the active shaft 2, the driven shaft 1, the outer bow band 41, the inner bow band 42 and the threading hole, a guide wheel group 43 set with an arc track is passed through the threading hole. One end of the track of the guide wheel group 43 extends to the inside of the active shaft 2 or the driven shaft 1 corresponding to the threading hole, and the other end extends to the end of the inner bow band 42 or the outer bow band 41 corresponding to the threading hole. The cable is passed along the arc track of the guide wheel group 43, so that the cable can move more smoothly during the twisting process and reduce the wear of the cable.

[0029] Preferably, the double-bow-belt high-speed stranding equipment also includes a meter counter, a tension meter and a stranding eyelet, which are sequentially arranged at the outer end of one of the driving shafts 2. The meter counter is used to monitor the passing length of the cable, the tension meter is used to monitor the tension of the cable, and the stranding eyelet is used to separate and thread multiple strands of cable. When threading the cable, the front end of the cable passes through the stranding eyelet, the tension meter, and the meter counter in sequence, and then passes into the driving shaft 2.

[0030] Preferably, Figure 1 , Figure 2As shown, a support seat is provided at the bottom of the mounting seat 21, and the two support seats are arranged on the same base, so as to facilitate the overall installation and transfer of the equipment and ensure the installation accuracy between the components.

[0031] The above description is only a preferred embodiment of the present invention, and is not intended to be the only one or to limit the present invention. Those skilled in the art should understand that various changes or equivalent substitutions made to the present invention without departing from the scope of the present invention are within the scope of protection of the present invention.

Claims

1. A double-bow high-speed stranding equipment, characterized in that: include: A pair of coaxially arranged driven shafts (1), with front ends of the driven shafts (1) arranged opposite to each other; A pair of driving shafts (2) are respectively arranged at the rear ends of the two driven shafts (1); the driving shafts (2) and the driven shafts (1) are both tubular structures; the rear ends of the driving shafts (2) are rotatably arranged on a mounting seat (21); the rear ends of the driving shafts (2) are connected to a driving system (22) for driving the two driving shafts (2) to rotate synchronously; the front ends of the driving shafts (2) are respectively coaxially arranged with the rear ends of the corresponding driven shafts (1) through a gear box (23); a gear transmission mechanism is arranged inside the gear box (23) for driving the driven shafts (1) to rotate in the opposite direction of the driving shafts (2); A U-shaped frame (3) is arranged between the front ends of the two driven shafts (1), and two side plates of the U-shaped frame (3) are rotatably connected to the front ends of the two driven shafts (1). Under the action of gravity, the U-shaped frame (3) is in a downwardly facing state. A wire drum is rotatably connected between the two side plates. The axis of the wire drum is parallel to the axis of the driven shaft (1). A wire arrangement mechanism (31) is arranged between the two side plates of the U-shaped frame (3); An outer bow band (41) and an inner bow band (42), the two ends of the outer bow band (41) are respectively connected to the outer walls of the two driving shafts (2), and the two ends of the inner bow band (42) are respectively connected to the outer walls of the two driven shafts (1). A threading hole is provided at the connection between the side wall of the driving shaft (2) and the outer bow band (41) and at the connection between the side wall of the driven shaft (1) and the inner bow band (42). The outer bow band (41) and the inner bow band (42) are both in an arched structure, with the protruding portion facing the outside of the driving shaft (2), and the inner bow band (42) is located between the outer bow band (41) and the driving shaft (2). The outer bow band (41) and the inner bow band (42) are both used to guide cables.

2. The double-bow high-speed stranding equipment according to claim 1, characterized in that: The driving system (22) comprises a transmission shaft (221) which is arranged outside the outer bow belt (41) and parallel to the driving shaft (2). Both ends of the transmission shaft (221) are respectively connected to the rear ends of the two driving shafts (2). The transmission shaft (221) is driven by a motor.

3. The double-bow high-speed stranding equipment according to claim 1, characterized in that: A pair of outer bow bands (41) and inner bow bands (42) are provided, respectively, and are symmetrical with respect to the axis of the driven shaft (1).

4. The double-bow high-speed stranding equipment according to claim 1, characterized in that: The gear transmission mechanism comprises: a driving gear (24) coaxially arranged on a driving shaft (2), a driven gear (11) coaxially arranged on a driven shaft (1), and a pair of mutually meshing intermediate gears (12), wherein the driving gear (24) and the driven gear (11) are respectively meshed with one of the intermediate gears (12) and are spaced apart from the other intermediate gear (12).

5. The double-bow high-speed stranding equipment according to claim 1, characterized in that: A guide wheel group (43) arranged in an arc-shaped track is passed through each of the threading holes. One end of the track of the guide wheel group (43) extends to the inside of the driving shaft (2) or the driven shaft (1) corresponding to the threading hole, and the other end extends to the end of the inner bow band (42) or the outer bow band (41) corresponding to the threading hole. The cable is passed along the arc-shaped track of the guide wheel group (43).

6. The double-bow high-speed stranding equipment according to claim 1, characterized in that: It also includes a meter, a tension meter and a twisted wire eyelet which are sequentially arranged at the outer end of one of the driving shafts (2).

7. The double-bow high-speed stranding equipment according to claim 1, characterized in that: A support seat is provided at the bottom of each mounting seat (21), and the two support seats are arranged on the same base.

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