Fixed-point parking feeding device for power cable stranding machine

Abstract

The invention belongs to the technical field of cable stranding machines, and particularly relates to a fixed-point parking feeding device for a power cable stranding machine, which comprises a base, a lifting mechanism, a horizontal transfer mechanism, a movable support plate, a centering mechanism, a limiting mechanism and an angle adjusting mechanism, the cable roller to be installed is rolled to the movable supporting plate and then pushed to the centering mechanism on the angle adjusting mechanism, the axial position of the cable roller is limited through the centering mechanism, the cable roller continues to be rolled to abut against the limiting mechanism, and the limiting mechanism limits the position of the axis of the cable roller. According to the invention, a cable roller with a large weight is conveyed to the cable roller placing rack of the cable stranding machine through the feeding device, and the centering mechanism and the limiting mechanism are used for positioning in the process, so that the feeding precision and efficiency are improved; and the lifting mechanism, the horizontal transferring mechanism and the angle adjusting mechanism are used for transferring, and the controller is used for automatic control, so that the feeding accuracy and efficiency are further improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of cable stranding machines, and specifically relates to a fixed-point parking and feeding device for a power cable stranding machine. Background Art

[0002] A stranding machine is a wire and cable processing device, which is widely used in the stranding of various soft and hard conductor wires and electronic wires. A stranding machine generally consists of a frame, a stranding system, a tension adjustment system, a wire take-up device, etc. The frame is the supporting structure of the entire device. The stranding system consists of a series of rotating dies, which are used to strand multiple wires together according to a certain rule. The tension adjustment system is used to adjust the tension of the wires during the stranding process, and the wire take-up device is a device that winds up the stranded wires.

[0003] Since multiple cable reels need to be installed on a stranding machine, and the weight of the cable reels is relatively large, even with the help of an auxiliary feeding device, workers often need to perform centering, and even need to manually adjust the position and angle of the cable reel and the stranding machine during the process. Therefore, not only does it increase the labor intensity of the feeding personnel, but also it is difficult to ensure the feeding accuracy and efficiency. Summary of the Invention

[0004] In order to make up for the deficiencies of the prior art, the present invention provides a fixed-point parking and feeding device for a power cable stranding machine. The present invention mainly solves the problem that the existing feeding device for a cable stranding machine requires workers to perform centering, and even needs to manually adjust the position and angle of the cable reel and the stranding machine during the process. Therefore, not only does it increase the labor intensity of the feeding personnel, but also it is difficult to ensure the feeding accuracy and efficiency.

[0005] The technical solution adopted by the present invention to solve its technical problems is: The present invention provides a fixed-point parking and feeding device for a power cable stranding machine, which includes a base, a lifting mechanism, a horizontal transfer mechanism, a moving support plate, a centering mechanism, a limiting mechanism, and an angle adjustment mechanism; the lifting mechanism for driving the horizontal transfer mechanism to move up and down is arranged on the base; the horizontal transfer mechanism is used to drive the moving support plate above to move horizontally; one end of the moving support plate is provided with the angle adjustment mechanism; the angle adjustment mechanism is used to adjust the angle of the cable reel thereon; the centering mechanism and the limiting mechanism are arranged on the angle adjustment mechanism; the centering mechanism is used to limit the axial position of the cable reel; the limiting mechanism is used to limit the position where the axis of the cable reel is located.

[0006] During operation, the fixed-point stop feeding device for the power cable stranding machine is placed corresponding to the wire roller placement rack of the cable stranding machine. In the initial state, the lifting mechanism is in the lowest position, and the horizontal transfer mechanism is in a contracted state away from the cable stranding machine. Roll the cable wire roller to be installed onto the moving support plate, and then further push it towards the centering mechanism on the angle adjustment mechanism. After the centering mechanism restricts the axial position of the cable wire roller, continue to roll the cable wire roller until it touches the limit mechanism. The limit mechanism restricts the position where the axis of the cable wire roller is located. Subsequently, the controller controls the angle adjustment mechanism to rotate the cable wire roller that has completed the position restriction in the horizontal plane by 90° through an electrical signal, so that the axis of the cable wire roller is aligned with the installation axis on the cable stranding machine. Subsequently, the controller controls the horizontal transfer mechanism to move the cable wire roller carried on the moving support plate to directly below the wire roller placement rack of the cable stranding machine through an electrical signal. The controller then controls the lifting mechanism to send the cable wire roller into the wire roller placement rack of the cable stranding machine in the vertical direction. Finally, lock the movable top pressing shaft for locking the cable wire roller on the wire roller placement rack, thereby realizing semi-automatic feeding for the fixed-point stop power cable stranding machine. In this case, the feeding device transports the relatively heavy cable wire roller to the wire roller placement rack of the cable stranding machine. During the process, the centering mechanism and the limit mechanism are used for positioning, thereby improving the feeding accuracy and efficiency. And through the lifting mechanism, the horizontal transfer mechanism and the angle adjustment mechanism for transfer and automatic control by the controller, the feeding accuracy and efficiency are further improved.

[0007] Preferably, the fixed-point stop feeding device for the power cable stranding machine further includes an alignment mechanism; the alignment mechanism is arranged at the other end of the moving support plate; the alignment mechanism includes a first lifting roller frame, a first lifting cylinder, a second lifting roller frame, a second lifting cylinder, a push plate and a pushing cylinder; two strip-shaped grooves are arranged in parallel on the moving support plate; the first lifting roller frame and the second lifting roller frame are respectively arranged in the strip-shaped grooves; the lower end of the first lifting roller frame is connected to the end of the cylinder rod of the first lifting cylinder; the cylinder body of the first lifting cylinder is fixedly connected to the moving support plate; the lower end of the second lifting roller frame is connected to the end of the cylinder rod of the second lifting cylinder; the cylinder body of the second lifting cylinder is fixedly connected to the moving support plate; a push-pull groove is arranged on the moving support plate between the two strip-shaped grooves; the push plate is slidably connected in the push-pull groove; the lower end of the push plate is fixedly connected to the end of the cylinder rod of the pushing cylinder; the pushing cylinder is fixedly connected to the moving support plate.

[0008] During operation, roll the cable reel to be installed onto the alignment mechanism on the movable support plate. The controller controls the simultaneous extension of the cylinder rods of the first lifting cylinder and the second lifting cylinder through electrical signals, and then lifts the cable reel through the first lifting roller frame and the second lifting roller frame. Since the first lifting roller frame and the second lifting roller frame are parallel to each other, the axis of the cable reel is aligned with the first lifting roller frame and the second lifting roller frame while the cable reel is lifted. Subsequently, the controller controls the pushing cylinder to pull the push plate through electrical signals, and then the push plate pushes the cable reel along the axis towards the middle of the movable support plate, so that the axial position of the cable reel is aligned with the centering mechanism, and there is no need to manually adjust the angle and position of the cable reel to push it into the centering mechanism, thereby reducing the labor intensity of the feeding personnel and improving the feeding accuracy and efficiency. One set of the push plate and the pushing cylinder can be arranged on each side of the movable support plate, or only one set can be arranged on one side; if only one set is arranged, the cable reel needs to be placed close to this side when placing the cable reel on the movable support plate, so that the push plate can adjust the cable reel within the effective stroke.

[0009] Preferably, the first lifting cylinder and the second lifting cylinder are respectively connected to the controller separately through electrical signals; after the alignment mechanism aligns the cable reel with the centering mechanism, the controller separately controls the second lifting cylinder close to the centering mechanism to contract. Since the first lifting cylinder is still in the extended state at this time, after the second lifting cylinder contracts, the cable reel rolls towards the centering mechanism under the action of its own weight, so there is no need for manual pushing of the cable reel towards the centering mechanism, thereby reducing the labor intensity of the feeding personnel. By setting a back pressure valve in the contraction air circuit of the second lifting cylinder, the retraction speed of the cylinder rod of the second lifting cylinder is controlled, and then the rolling speed obtained by the cable reel is controlled, so that the impact force of the cable reel rolling to the centering mechanism and the limiting mechanism is controlled.

[0010] Preferably, the angle adjustment mechanism includes a turntable, a connecting column, a rotation driving cylinder and a rotation support; the movable support plate is of a double-layer structure; the movable support plate includes an upper support plate and a lower support plate; the upper support plate and the lower support plate are fixedly connected by a support plate; the turntable is rotatably connected to the lower support plate through the rotation support; the turntable extends into a circular hole provided on the upper support plate, and the upper surface of the turntable is flush with the upper surface of the upper support plate; the connecting column is arranged at a position deviating from the rotation center on the lower surface of the turntable; the end of the connecting column is rotatably connected to the cylinder rod of the rotation driving cylinder; the end of the rotation driving cylinder is hinged to the lower support plate.

[0011] During operation, the controller controls the rotation driving cylinder to extend through an electric signal. Due to the offset of the limit post from the rotation center of the turntable, the turntable rotates during the extension of the rotation driving cylinder. After the rotation driving cylinder is fully extended, the turntable rotates 90°, thereby driving the cable reel thereon to adjust the angle.

[0012] Preferably, the angle adjustment mechanism further includes an axial movement unit; the axial movement unit includes a first moving plate, a second moving plate, guide rods, a guide seat, an L-shaped connecting plate, and a movement driving cylinder; a rectangular opening groove is provided on the turntable corresponding to the position of the centering mechanism; the first moving plate is arranged in one opening groove, and the second moving plate is arranged in the other opening groove; the first moving plate and the second moving plate are fixedly connected by two parallel guide rods; the guide rods are slidably connected to the lower surface of the turntable through the guide seat; the first moving plate is connected to the rod of the movement driving cylinder through the L-shaped connecting plate; the movement driving cylinder is fixedly connected to the turntable.

[0013] During operation, the controller controls the lifting mechanism to send the cable reel into the reel placement rack of the cable stranding machine in the vertical direction. Subsequently, the controller controls the movement driving cylinder to extend through an electric signal, thereby driving the first moving plate and the second moving plate for carrying the cable reel to move, and then moving the cable reel thereon axially, so that the cable reel abuts against the fixed tightening shaft on the reel placement rack, thereby avoiding forcibly pushing the cable reel against the fixed tightening shaft through the movable tightening shaft on the reel placement rack, which not only increases the difficulty for the feeding personnel to lock the movable tightening shaft, but also, due to the heavy weight of the cable reel, the increase in the locking difficulty will also lead to an increased risk of incomplete locking, and further increases the risk of accidents. In this case, the axial movement unit abuts one end of the cable reel against the fixed tightening shaft first, and then only needs to lock the movable tightening shaft against the other end of the cable reel. There is no need to drive the movement of the cable reel during the process, thereby greatly reducing the labor intensity of the feeding personnel, and at the same time reducing the probability of incomplete locking accidents of the cable reel, and further improving the safety of the operation of the power cable stranding machine.

[0014] Preferably, the centering mechanism includes guide bars, first springs, and a support plate; the centering mechanism is a symmetric structure; the guide bars are symmetrically arranged on both sides of the turntable; the support plates are arranged outside the guide bars; the support plates are fixedly connected to the turntable; a plurality of the first springs are evenly spaced between the guide bars and the support plates; both ends of the first spring are fixedly connected to the guide bar and the support plate respectively.

[0015] During operation, the cable reel rolls between two guide bars to limit the axial position of the cable reel. In this case, the compressible guide bars not only automatically center through the elastic force of the first springs on both sides, but also consume the kinetic energy of the rolling cable reel during the process of the cable reel squeezing the first springs, thereby reducing the force of the cable reel impacting the limit mechanism, enabling the cable reel to stop more stably when forced to stop by the limit mechanism, and improving the safety during the feeding process of the feeding device while enhancing the limit accuracy of the limit mechanism. Absorbing kinetic energy through the guide bars and the first springs has a longer service life compared to using elastic rubber strips.

[0016] Preferably, the limit mechanisms are symmetrically arranged on both sides of the turntable; the limit mechanism includes a swing rod, a second spring, a rotating block, a sliding block, and a mounting support plate; the lower end of the swing rod is hinged to the support plate; a mounting support plate is arranged on the outer side of the swing rod; the mounting support plate is fixedly connected to the support plate; the second spring is arranged in a direction perpendicular to the mounting support plate; one end of the second spring is fixedly connected to the mounting support plate through a fixed column; the other end of the second spring is fixedly connected to the rotating block; the rotating block is hinged to the sliding block; the sliding surface of the sliding block abuts against the swing rod; the swing rod and the second spring are perpendicular to each other; a limit support column is fixedly connected to the mounting support plate; there is a gap between the protruding end of the limit support column and the swing rod.

[0017] During operation, after the axial position of the cable reel is restricted by the centering mechanism, the cable reel impacts the limit mechanism. The limit plates on both sides of the cable reel impact the swing rod, and then the swing rod positively compresses the second spring. During the process of the second spring being compressed, the angle of the swing rod relative to the second spring also changes. Since the swing rod does not vertically compress the second spring, the sliding block slides along the swing rod in the direction with a component force, causing the elastic supporting force of the second spring to rapidly decrease. At this time, the swing rod only receives the rebounding force of the second spring bending, which is much smaller than the force of being positively compressed. Therefore, in this case, at the initial stage when the limit plates on both sides of the cable reel impact the swing rod, a large rebounding force is obtained by positively compressing the second spring to rapidly consume the kinetic energy of the cable reel. After the angle of the swing rod relative to the second spring changes later, the sliding block slides along the swing rod, making the second spring only have a small rebounding force generated by bending. As a result, the cable reel can slowly squeeze the swing rod against the limit support column, and will not roll in the opposite direction due to the excessive rebounding force stored in the second spring after continuous compression, thereby improving the limit accuracy of the limit mechanism for the cable reel.

[0018] Preferably, limit structures are arranged on both sides of the sliding block.

[0019] By providing limiting structures on both sides of the sliding block, it is possible to prevent the sliding block from detaching from the swing rod when sliding along the swing rod, which may otherwise cause the sliding block to be unable to return to its initial position, resulting in the failure of the limiting mechanism's function, the inability to ensure the position of the cable reel, and the inability of the loading device to complete the subsequent automatic loading of the cable reel.

[0020] Preferably, the lifting mechanism includes a lower U-shaped groove rod, a lifting drive cylinder, a drive bracket, a first limiting wheel, a first scissor arm, a second scissor arm, an upper U-shaped groove rod, a second limiting wheel, and a lifting support plate. The lifting support plate is disposed above the base. The lifting support plate and the base are connected by a first scissor arm and a second scissor arm that are hinged to each other in the middle. The upper end of the first scissor arm is hinged to the lifting support plate, and the lower end of the first scissor arm slides in the lower U-shaped groove rod through the first limiting wheel rotatably connected to its end. The lower U-shaped groove rod is fixedly connected to the base. The lower end of the second scissor arm is hinged to the base, and the upper end of the second scissor arm slides in the upper U-shaped groove rod through the second limiting wheel rotatably connected to its end. The upper U-shaped groove rod is fixedly connected to the lifting support plate. The horizontal transfer mechanism is connected to the lifting support plate. The two ends of the drive bracket are respectively connected to the rotating shafts of the two first limiting wheels. The drive bracket is fixedly connected to the piston rod of the lifting drive cylinder. The lifting drive cylinder is fixedly connected to the base.

[0021] One third limiting wheel is provided on each side of the drive bracket to improve the smoothness of the movement of the drive bracket. During operation, the controller drives the lifting drive cylinder to extend through an electrical signal, and then pushes the lower end of the first scissor arm towards the lower end of the second scissor arm through the drive bracket. Since the angle between the first scissor arm and the second scissor arm decreases, the supporting height of the upper ends of the first scissor arm and the second scissor arm increases, thereby realizing the lifting of the horizontal transfer mechanism on the lifting support plate, that is, realizing the lifting of the cable reel.

[0022] Preferably, the horizontal transfer mechanism includes a transfer drive cylinder and a linear guide rail. The moving support plate is connected to the lifting support plate through the linear guide rail. One end of the moving support plate is fixedly connected to the piston rod of the transfer drive cylinder. The cylinder body of the transfer drive cylinder is fixedly connected to the lifting support plate.

[0023] During operation, the controller controls the transfer drive cylinder to extend through an electrical signal, thereby realizing the delivery of the cable reel on the moving support plate directly below the reel placement rack of the cable stranding machine.

[0024] The beneficial effects of the present invention are as follows: 1. In the present invention, the cable roller to be installed is rolled onto the movable support plate, and then pushed toward the centering mechanism on the angle adjustment mechanism. The axial position of the cable roller is limited by the centering mechanism, and the cable roller is continued to be rolled to make it contact with the limiting mechanism. The limiting mechanism limits the position of the cable roller axis. Then, the controller controls the angle adjustment mechanism through electrical signals to carry the cable roller that has completed the position limit in the horizontal plane and rotates 90°, so that the axis of the cable roller is consistent with the installation axis on the cable twisting machine; then, the controller controls the horizontal transfer mechanism through electrical signals to move the cable roller carried on the movable support plate to the cable twisting machine where the roller is placed. The controller then controls the lifting mechanism through electrical signals to send the cable roller into the roller placement rack of the cable twisting machine in the vertical direction, and finally locks the movable tightening shaft on the roller placement rack for locking the cable roller, thereby realizing semi-automatic loading of the fixed-point parked power cable twisting machine. In this case, the heavier cable roller is transported to the roller placement rack of the cable twisting machine through the loading device, and the centering mechanism and the limiting mechanism are used for positioning during the process, thereby improving the loading accuracy and efficiency. The loading is carried out through the lifting mechanism, the horizontal transfer mechanism and the angle adjustment mechanism and is automatically controlled by the controller, thereby further improving the loading accuracy and efficiency.

[0025] 2. In the present invention, the cable roller to be installed is rolled to the position of the alignment mechanism on the movable support plate, and the controller controls the first lifting cylinder and the second lifting cylinder to extend the cylinder rod at the same time through electrical signals, and then lifts the cable roller through the first lifting roller frame and the second lifting roller frame. Since the first lifting roller frame and the second lifting roller frame are parallel to each other, the cable roller is lifted up and at the same time, its own axis is aligned with the first lifting roller frame and the second lifting roller frame. Then the controller controls the push cylinder to pull the push plate through electrical signals, and then the push plate pushes the cable roller along the axis to the middle of the movable support plate to align, thereby aligning the axial position of the cable roller with the centering mechanism, and there is no need to manually adjust the angle and position of the cable roller to push it into the centering mechanism, thereby reducing the labor intensity of the loading personnel while improving the loading accuracy and efficiency.

[0026] 3. In the present invention, the controller controls the lifting mechanism to send the cable reel into the reel placement rack of the cable stranding machine in the vertical direction. Subsequently, the controller controls the moving drive cylinder to extend through an electrical signal, thereby driving the first moving plate and the second moving plate for carrying the cable reel to move, and then moving the cable reel thereon axially, so that the cable reel abuts against the fixed tightening shaft on the reel placement rack, thus avoiding forcibly pushing the cable reel against the fixed tightening shaft through the movable tightening shaft on the reel placement rack. This not only increases the difficulty for the loading personnel to lock the movable tightening shaft, but also due to the heavy weight of the cable reel, the increased locking difficulty will also lead to an increased risk of incomplete locking, and further increases the risk of accidents. In this case, one end of the cable reel is first abutted against the fixed tightening shaft through the axial moving unit, and then only the movable tightening shaft needs to be locked and abutted against the other end of the cable reel. There is no need to drive the movement of the cable reel during the process, thereby greatly reducing the labor intensity of the loading personnel, and at the same time reducing the probability of incomplete locking accidents of the cable reel, and further improving the safety of the operation of the power cable stranding machine.

[0027] 4. After the axial restriction of the cable reel is achieved through the centering mechanism in the present invention, the cable reel impacts on the limiting mechanism. The limiting plates on both sides of the cable reel impact the swing rod, and then the swing rod positively squeezes the second spring. During the process of the second spring being compressed, the angle of the swing rod relative to the second spring also changes. Since the swing rod does not vertically squeeze the second spring, the sliding block slides along the swing rod in the direction with a component force, thereby rapidly reducing the elastic supporting force of the second spring. At this time, the swing rod only receives the rebounding force of the bending of the second spring, and this rebounding force is much smaller than the force of being positively compressed. Therefore, in this case, at the initial stage when the limiting plates on both sides of the cable reel impact the swing rod, a large rebounding force is obtained by positively compressing the second spring to rapidly consume the kinetic energy of the cable reel. And after the angle of the swing rod relative to the second spring changes in the later stage, the sliding block slides along the swing rod, so that the second spring only has a small rebounding force generated by bending, so that the cable reel can slowly squeeze the swing rod against the limiting support column, and will not push the cable reel to roll in the opposite direction due to the excessive rebounding force stored after the second spring is continuously squeezed, thereby improving the limiting accuracy of the limiting mechanism for the cable reel. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention will be further described below with reference to the accompanying drawings.

[0029] Figure 1 is the installation schematic diagram of the loading device of the present invention; Figure 2 is the overall structural schematic diagram of the loading device of the present invention in the loading state; Figure 3 is the overall structural schematic diagram of the loading device of the present invention in the initial state; Figure 4 is a schematic structural view of the lifting mechanism in the present invention; Figure 5 is a schematic structural view of the angle adjustment mechanism and the alignment mechanism in the first perspective in the present invention; Figure 6 is a schematic structural view of the angle adjustment mechanism and the alignment mechanism in the second perspective in the present invention; Figure 7 is a schematic internal structural view of the angle adjustment mechanism in the present invention; Figure 8 is a schematic internal structural view of the alignment mechanism in the present invention; Figure 9 is a schematic structural view of the centering mechanism and the limiting mechanism in the first perspective in the present invention; Figure 10 is a schematic structural view of the centering mechanism and the limiting mechanism in the second perspective in the present invention; In the figure: base 1, lifting mechanism 2, lower U-shaped groove rod 21, lifting drive cylinder 22, drive bracket 23, first limiting wheel 24, first scissor arm 25, second scissor arm 26, upper U-shaped groove rod 27, second limiting wheel 28, lifting support plate 29, horizontal transfer mechanism 3, transfer drive cylinder 31, linear guide rail 32, moving support plate 4, upper support plate 41, lower support plate 42, centering mechanism 5, guide bar 51, first spring 52, support plate 53, limiting mechanism 6, swing rod 61, second spring 62, rotating block 63, sliding block 64, mounting support plate 65, limiting support column 66, angle adjustment mechanism 7, turntable 71, connecting column 72, rotation drive cylinder 73, rotation support 74, axial movement unit 75, first moving plate 751, second moving plate 752, guide rod 753, guide seat 754, L-shaped connecting plate 755, moving drive cylinder 756, alignment mechanism 8, first lifting roller frame 81, first lifting cylinder 82, second lifting roller frame 83, second lifting cylinder 84, push plate 85, pushing cylinder 86. Detailed implementation manners

[0030] In order to make the technical means, creative features, achieved purposes and effects realized by the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0031] As Figures 1 to 4As shown in the figure, a fixed-point parking feeding device for a power cable stranding machine includes a base 1, a lifting mechanism 2, a horizontal transfer mechanism 3, a moving support plate 4, a centering mechanism 5, a limiting mechanism 6, and an angle adjustment mechanism 7. The lifting mechanism 2 for driving the horizontal transfer mechanism 3 to move up and down is arranged on the base 1. The horizontal transfer mechanism 3 is used to drive the moving support plate 4 above it to move horizontally. The angle adjustment mechanism 7 is arranged at one end of the moving support plate 4. The angle adjustment mechanism 7 is used to adjust the angle of the cable reel on it. The centering mechanism 5 and the limiting mechanism 6 are arranged on the angle adjustment mechanism 7. The centering mechanism 5 is used to limit the axial position of the cable reel. The limiting mechanism 6 is used to limit the position where the axis of the cable reel is located.

[0032] During operation, the fixed-point parking feeding device for the power cable stranding machine is placed corresponding to the reel placement rack of the cable stranding machine. In the initial state, the lifting mechanism 2 is in the lowest position, and the horizontal transfer mechanism 3 is in the retracted state away from the cable stranding machine. The cable reel to be installed is rolled onto the moving support plate 4 and then pushed towards the centering mechanism 5 on the angle adjustment mechanism 7. After the centering mechanism 5 limits the axial position of the cable reel, the cable reel is continuously rolled until it touches the limiting mechanism 6, and the limiting mechanism 6 limits the position where the axis of the cable reel is located. Subsequently, the controller controls the angle adjustment mechanism 7 to rotate 90° with the cable reel that has completed the position limitation in the horizontal plane through an electrical signal, so that the axis of the cable reel is aligned with the installation axis on the cable stranding machine. Subsequently, the controller controls the horizontal transfer mechanism 3 to move the cable reel carried on the moving support plate 4 to directly below the reel placement rack of the cable stranding machine through an electrical signal. The controller then controls the lifting mechanism 2 to send the cable reel into the reel placement rack of the cable stranding machine in the vertical direction. Finally, the movable jacking shaft for locking the cable reel on the reel placement rack is locked, thereby realizing semi-automatic feeding for the fixed-point parking power cable stranding machine. In this case, the feeding device transports the relatively heavy cable reel to the reel placement rack of the cable stranding machine, and the centering mechanism 5 and the limiting mechanism 6 are used for positioning during the process, thereby improving the feeding accuracy and efficiency. Moreover, through the transfer by the lifting mechanism 2, the horizontal transfer mechanism 3, and the angle adjustment mechanism 7 and the automatic control by the controller, the feeding accuracy and efficiency are further improved.

[0033] As Figures 5 to 8As shown in the figure, the fixed-point parking and feeding device for the power cable stranding machine further includes an alignment mechanism 8; the alignment mechanism 8 is arranged at the other end of the moving support plate 4; the alignment mechanism 8 includes a first lifting roller frame 81, a first lifting cylinder 82, a second lifting roller frame 83, a second lifting cylinder 84, a push plate 85 and a pushing cylinder 86; two strip-shaped grooves are arranged in parallel on the moving support plate 4; the first lifting roller frame 81 and the second lifting roller frame 83 are respectively arranged in the strip-shaped grooves; the lower end of the first lifting roller frame 81 is connected to the end of the cylinder rod of the first lifting cylinder 82; the cylinder body of the first lifting cylinder 82 is fixedly connected to the moving support plate 4; the lower end of the second lifting roller frame 83 is connected to the end of the cylinder rod of the second lifting cylinder 84; the cylinder body of the second lifting cylinder 84 is fixedly connected to the moving support plate 4; a push-pull groove is arranged on the moving support plate 4 between the two strip-shaped grooves; the push plate 85 is slidably connected in the push-pull groove; the lower end of the push plate 85 is fixedly connected to the end of the cylinder rod of the pushing cylinder 86; the pushing cylinder 86 is fixedly connected to the moving support plate 4.

[0034] During operation, the cable reel to be installed is rolled to the position of the alignment mechanism 8 on the moving support plate 4. The controller controls the first lifting cylinder 82 and the second lifting cylinder 84 to simultaneously extend their cylinder rods through electrical signals. Then, the cable reel is lifted by the first lifting roller frame 81 and the second lifting roller frame 83. Since the first lifting roller frame 81 and the second lifting roller frame 83 are parallel to each other, the axis of the cable reel is aligned with the first lifting roller frame 81 and the second lifting roller frame 83 while the cable reel is lifted. Subsequently, the controller controls the pushing cylinder 86 to pull the push plate 85 through an electrical signal. Then, the push plate 85 pushes the cable reel along the axis towards the middle of the moving support plate 4, so that the axial position of the cable reel is aligned with the centering mechanism 5. Therefore, it is not necessary to manually adjust the angle and position of the cable reel to push it into the centering mechanism 5, which reduces the labor intensity of the feeding personnel and improves the feeding accuracy and efficiency at the same time. One set of the push plate 85 and the pushing cylinder 86 can be arranged on each side of the moving support plate 4, or only one set can be arranged on one side; if only one set is arranged, the cable reel needs to be placed close to this side when placing the cable reel on the moving support plate 4, so that the push plate 85 can adjust the cable reel within the effective stroke.

[0035] As Figure 3As shown, the first lifting cylinder 82 and the second lifting cylinder 84 are respectively connected to the controller individually through electrical signals; after the alignment mechanism 8 aligns the cable reel with the centering mechanism 5, the controller individually controls the second lifting cylinder 84 close to the centering mechanism 5 to contract. Since the first lifting cylinder 82 is still in the extended state at this time, after the second lifting cylinder 84 contracts, the cable reel rolls towards the centering mechanism 5 under the action of its own weight. Therefore, there is no need for manual pushing of the cable reel towards the centering mechanism 5, thereby reducing the labor intensity of the feeding personnel. By providing a back pressure valve in the contraction air circuit of the second lifting cylinder 84, the retracting speed of the cylinder rod of the second lifting cylinder 84 is controlled, and thus the rolling speed obtained by the cable reel is controlled, so that the impact force of the cable reel rolling to the centering mechanism 5 and the limiting mechanism 6 is controlled.

[0036] As Figures 5 to 7 shown, the angle adjustment mechanism 7 includes a turntable 71, a connecting column 72, a rotation driving cylinder 73 and a rotation support 74; the moving support plate 4 is of a double-layer structure; the moving support plate 4 includes an upper support plate 41 and a lower support plate 42; the upper support plate 41 and the lower support plate 42 are fixedly connected by a support plate 53; the turntable 71 is rotatably connected to the lower support plate 42 through the rotation support 74; the turntable 71 extends into a circular hole provided on the upper support plate 41, and the upper surface of the turntable 71 is flush with the upper surface of the upper support plate 41; the connecting column 72 is provided at a position deviating from the rotation center on the lower surface of the turntable 71; the end of the connecting column 72 is rotatably connected to the cylinder rod of the rotation driving cylinder 73; the end of the rotation driving cylinder 73 is hinged to the lower support plate 42.

[0037] During operation, the controller controls the rotation driving cylinder 73 to extend through an electrical signal. Since the limiting column offsets the moving distance of the rotation center of the turntable 71, the turntable 71 rotates during the extension of the rotation driving cylinder 73. After the rotation driving cylinder 73 is fully extended, the turntable 71 rotates 90°, thereby realizing the adjustment of the angle of the cable reel thereon.

[0038] As Figures 5 to 7As shown, the angle adjustment mechanism 7 further includes an axial movement unit 75; the axial movement unit 75 includes a first moving plate 751, a second moving plate 752, a guide rod 753, a guide seat 754, an L-shaped connecting plate 755, and a moving drive cylinder 756; a rectangular opening groove is provided on the turntable 71 corresponding to the position of the centering mechanism 5; the first moving plate 751 is arranged in one opening groove, and the second moving plate 752 is arranged in the other opening groove; the first moving plate 751 and the second moving plate 752 are fixedly connected by two parallel guide rods 753; the guide rod 753 is slidably connected to the lower surface of the turntable 71 through the guide seat 754; the first moving plate 751 is connected to the piston rod of the moving drive cylinder 756 through the L-shaped connecting plate 755; the moving drive cylinder 756 is fixedly connected to the turntable 71.

[0039] During operation, the controller controls the lifting mechanism 2 to send the cable reel into the reel placement rack of the cable stranding machine in the vertical direction. Subsequently, the controller controls the moving drive cylinder 756 to extend through an electrical signal, thereby driving the first moving plate 751 and the second moving plate 752 for carrying the cable reel to move, and then moving the cable reel thereon axially, so that the cable reel abuts against the fixed tightening shaft on the reel placement rack, thereby avoiding forcibly pushing the cable reel against the fixed tightening shaft through the movable tightening shaft on the reel placement rack. This not only increases the difficulty for the loading personnel to lock the movable tightening shaft, but also due to the heavy weight of the cable reel, the increase in the locking difficulty will also lead to an increased risk of incomplete locking, and further increases the risk of accidents. In this case, the axial movement unit 75 first abuts one end of the cable reel against the fixed tightening shaft, and then only needs to lock the movable tightening shaft against the other end of the cable reel. There is no need to drive the movement of the cable reel during the process, thereby greatly reducing the labor intensity of the loading personnel, and at the same time reducing the probability of accidents of incomplete locking of the cable reel, and further improving the safety of the operation of the power cable stranding machine.

[0040] As Figures 9 to 10 shown, the centering mechanism 5 includes guide bars 51, first springs 52, and a support plate 53; the centering mechanism 5 is a symmetric structure; the guide bars 51 are symmetrically arranged on both sides of the turntable 71; the support plates 53 are arranged outside the guide bars 51; the support plates 53 are fixedly connected to the turntable 71; a plurality of the first springs 52 are evenly spaced between the guide bars 51 and the support plates 53; both ends of the first spring 52 are fixedly connected to the guide bars 51 and the support plates 53 respectively.

[0041] During operation, the cable reel rolls between two guide bars 51 to restrict the axial position of the cable reel. In this case, the compressible guide bars 51 not only automatically center through the elastic force of the first springs 52 on both sides, but also consume the kinetic energy of the rolling cable reel during the process of the cable reel squeezing the first springs 52, thereby reducing the force of the cable reel impacting the limit mechanism 6, so that the cable reel stops more stably when forced to stop by the limit mechanism 6, thereby improving the safety during the feeding process of the feeding device while improving the limiting accuracy of the limit mechanism 6. Absorbing kinetic energy through the guide bars 51 and the first springs 52 has a longer service life compared to using elastic rubber strips.

[0042] As Figures 9 to 10 shown, the limit mechanism 6 is symmetrically arranged on both sides of the turntable 71; the limit mechanism 6 includes a swing rod 61, a second spring 62, a rotating block 63, a sliding block 64 and a mounting support plate 65; the lower end of the swing rod 61 is hinged on the support plate 53; a mounting support plate 65 is arranged on the outer side of the swing rod 61; the mounting support plate 65 is fixedly connected to the support plate 53; the second spring 62 is arranged in a direction perpendicular to the mounting support plate 65; one end of the second spring 62 is fixedly connected to the mounting support plate 65 through a fixing column; the other end of the second spring 62 is fixedly connected to the rotating block 63; the rotating block 63 is hinged to the sliding block 64; the sliding surface of the sliding block 64 abuts against the swing rod 61; the swing rod 61 and the second spring 62 are perpendicular to each other; a limit support column 66 is fixedly connected to the mounting support plate 65; there is a gap between the protruding end of the limit support column 66 and the swing rod 61.

[0043] During operation, after the cable reel is axially restricted by the centering mechanism 5, it impacts on the limit mechanism 6. The limit plates on both sides of the cable reel impact the swing rod 61, and then the swing rod 61 positively presses the second spring 62. During the process of the second spring 62 being compressed, the angle of the swing rod 61 relative to the second spring 62 also changes. Since the swing rod 61 does not vertically press the second spring 62, the sliding block 64 slides along the swing rod 61 in the direction with a component force, thereby rapidly reducing the elastic support force of the second spring 62. At this time, the swing rod 61 only receives the rebound force from the bending of the second spring 62, and this rebound force is much smaller than the force for positive compression. Therefore, in this case, at the initial stage when the limit plates on both sides of the cable reel impact the swing rod 61, a large rebound force is obtained by positively compressing the second spring 62 to rapidly consume the kinetic energy of the cable reel. And in the later stage, after the angle of the swing rod 61 relative to the second spring 62 changes, the sliding block 64 slides along the swing rod 61, so that the second spring 62 only has a small rebound force generated by bending, enabling the cable reel to slowly press the swing rod 61 against the limit support column 66. Thus, it will not cause the cable reel to roll in the reverse direction due to the excessive rebound force stored after the second spring 62 is continuously compressed, thereby improving the limit accuracy of the limit mechanism 6 for the cable reel.

[0044] As Figures 9 to 10 shown, limit structures are provided on both sides of the sliding block 64.

[0045] By providing limit structures on both sides of the sliding block 64, it is prevented that the sliding block 64 disengages from the swing rod 61 when sliding along the swing rod 61, which may cause the sliding block 64 to be unable to return to the initial position, resulting in the failure of the function of the limit mechanism 6, the inability to ensure the position of the cable reel, and the failure of the feeding device to complete the subsequent automatic feeding of the cable reel.

[0046] As Figure 2 and Figure 4As shown, the lifting mechanism 2 includes a lower U-shaped groove rod 21, a lifting drive cylinder 22, a drive bracket 23, a first limiting wheel 24, a first scissors arm 25, a second scissors arm 26, an upper U-shaped groove rod 27, a second limiting wheel 28, and a lifting support plate 29; the lifting support plate 29 is arranged above the base 1; the lifting support plate 29 and the base 1 are connected by a first scissors arm 25 and a second scissors arm 26 that are hinged to each other in the middle; the upper end of the first scissors arm 25 is hinged to the lifting support plate 29, and the lower end of the first scissors arm 25 slides in the lower U-shaped groove rod 21 through the first limiting wheel 24 that is rotatably connected to the end; the lower U-shaped groove rod 21 is fixedly connected to the base 1; the lower end of the second scissors arm 26 is hinged to the base 1, and the upper end of the second scissors arm 26 slides in the upper U-shaped groove rod 27 through the second limiting wheel 28 that is rotatably connected to the end; the upper U-shaped groove rod 27 is fixedly connected to the lifting support plate 29; the horizontal transfer mechanism 3 is connected to the lifting support plate 29; both ends of the drive bracket 23 are respectively connected to the rotating shafts of the two first limiting wheels 24; the drive bracket 23 is fixedly connected to the cylinder rod of the lifting drive cylinder 22; the lifting drive cylinder 22 is fixedly connected to the base 1.

[0047] A third limiting wheel is arranged on each side of the drive bracket 23 to improve the smoothness of the movement of the drive bracket 23; during operation, the controller drives the lifting drive cylinder 22 to extend through an electric signal, and then pushes the lower end of the first scissors arm 25 to approach the lower end of the second scissors arm 26 through the drive bracket 23. Since the angle between the first scissors arm 25 and the second scissors arm 26 decreases, the support height of the upper ends of the first scissors arm 25 and the second scissors arm 26 increases, thereby realizing the lifting of the horizontal transfer mechanism 3 on the lifting support plate 29, that is, realizing the lifting of the cable reel.

[0048] As Figure 2 and Figure 4 shown, the horizontal transfer mechanism 3 includes a transfer drive cylinder 31 and a linear guide rail 32; the moving support plate 4 is connected to the lifting support plate 29 through the linear guide rail 32; one end of the moving support plate 4 is fixedly connected to the cylinder rod of the transfer drive cylinder 31; the cylinder body of the transfer drive cylinder 31 is fixedly connected to the lifting support plate 29.

[0049] During operation, the controller controls the transfer drive cylinder 31 to extend through an electric signal, and then realizes sending the cable reel on the moving support plate 4 directly below the reel placement rack of the cable stranding machine.

[0050] The embodiments of the present invention have been described above in conjunction with the accompanying drawings. However, the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms without departing from the spirit of the present invention and the scope protected by the claims. All of these are within the protection scope of the present invention.

Claims

1. A fixed-point parking and feeding device for a power cable stranding machine, characterized in that: It includes a base (1), a lifting mechanism (2), a horizontal transfer mechanism (3), a moving support plate (4), a centering mechanism (5), a limiting mechanism (6) and an angle adjustment mechanism (7); the lifting mechanism (2) for driving the horizontal transfer mechanism (3) to move up and down is arranged on the base (1); the horizontal transfer mechanism (3) is used for driving the moving support plate (4) above to move horizontally; the angle adjustment mechanism (7) is arranged at one end of the moving support plate (4); the angle adjustment mechanism (7) is used for adjusting the angle of the cable reel thereon; the centering mechanism (5) and the limiting mechanism (6) are arranged on the angle adjustment mechanism (7); the centering mechanism (5) is used for restricting the axial position of the cable reel; the limiting mechanism (6) is used for restricting the position where the axis of the cable reel is located.

2. The fixed-point parking and feeding device for a power cable stranding machine according to claim 1, characterized in that: It further includes an alignment mechanism (8); the alignment mechanism (8) is arranged at the other end of the moving support plate (4); the alignment mechanism (8) includes a first lifting roller frame (81), a first lifting cylinder (82), a second lifting roller frame (83), a second lifting cylinder (84), a push plate (85) and a pushing cylinder (86); two strip-shaped grooves are arranged in parallel on the moving support plate (4); the first lifting roller frame (81) and the second lifting roller frame (83) are respectively arranged in the strip-shaped grooves; the lower end of the first lifting roller frame (81) is connected to the end of the rod of the first lifting cylinder (82); the cylinder body of the first lifting cylinder (82) is fixedly connected to the moving support plate (4); the lower end of the second lifting roller frame (83) is connected to the end of the rod of the second lifting cylinder (84); the cylinder body of the second lifting cylinder (84) is fixedly connected to the moving support plate (4); a push-pull groove is arranged on the moving support plate (4) between the two strip-shaped grooves; the push plate (85) is slidably connected in the push-pull groove; the lower end of the push plate (85) is fixedly connected to the end of the rod of the pushing cylinder (86); the pushing cylinder (86) is fixedly connected to the moving support plate (4).

3. The fixed-point parking and feeding device for a power cable stranding machine according to claim 2, characterized in that: The first lifting cylinder (82) and the second lifting cylinder (84) are respectively and individually connected to the controller through electrical signals; after the alignment mechanism (8) aligns the cable reel with the centering mechanism (5), the controller individually controls the second lifting cylinder (84) close to the centering mechanism (5) to contract.

4. A fixed-point parking and feeding device for a power cable stranding machine according to claim 1, characterized in that: The angle adjustment mechanism (7) includes a turntable (71), a connecting column (72), a rotation driving cylinder (73) and a rotation support (74); the moving support plate (4) is of a double-layer structure; the moving support plate (4) includes an upper support plate (41) and a lower support plate (42); the upper support plate (41) and the lower support plate (42) are fixedly connected by a support plate (53); the turntable (71) is rotatably connected to the lower support plate (42) through the rotation support (74); the turntable (71) extends into a circular hole provided on the upper support plate (41), and the upper surface of the turntable (71) is flush with the upper surface of the upper support plate (41); the connecting column (72) is arranged at a position on the lower surface of the turntable (71) deviating from the rotation center; the end of the connecting column (72) is rotatably connected to the cylinder rod of the rotation driving cylinder (73); the end of the rotation driving cylinder (73) is hinged to the lower support plate (42).

5. The fixed-point parking and feeding device for a power cable stranding machine according to claim 4, characterized in that: The angle adjustment mechanism (7) further includes an axial movement unit (75); the axial movement unit (75) includes a first moving plate (751), a second moving plate (752), a guide rod (753), a guide seat (754), an L-shaped connecting plate (755) and a movement driving cylinder (756); a rectangular opening groove is provided on the turntable (71) at a position corresponding to the centering mechanism (5); the first moving plate (751) is arranged in one opening groove, and the second moving plate (752) is arranged in the other opening groove; the first moving plate (751) and the second moving plate (752) are fixedly connected by two parallel guide rods (753); the guide rods (753) are slidably connected to the lower surface of the turntable (71) through the guide seats (754); the first moving plate (751) is connected to the cylinder rod of the movement driving cylinder (756) through the L-shaped connecting plate (755); the movement driving cylinder (756) is fixedly connected to the turntable (71).

6. The fixed-point parking and feeding device for a power cable stranding machine according to claim 4, wherein: The centering mechanism (5) includes guide bars (51), first springs (52) and a support plate (53); the centering mechanism (5) is of a symmetrical structure; the guide bars (51) are symmetrically arranged on both sides of the turntable (71); the support plates (53) are arranged on the outer sides of the guide bars (51); the support plates (53) are fixedly connected to the turntable (71); a plurality of the first springs (52) are evenly spaced between the guide bars (51) and the support plates (53); both ends of the first springs (52) are respectively fixedly connected to the guide bars (51) and the support plates (53).

7. A fixed-point parking and feeding device for a power cable stranding machine according to claim 6, characterized in that: The limiting mechanism (6) is symmetrically arranged on both sides of the turntable (71); the limiting mechanism (6) includes a swing rod (61), a second spring (62), a rotating block (63), a sliding block (64) and a mounting support plate (65); the lower end of the swing rod (61) is hinged to the support plate (53); the mounting support plate (65) is arranged on the outer side of the swing rod (61); the mounting support plate (65) is fixedly connected to the support plate (53); the second spring (62) is arranged in a direction perpendicular to the mounting support plate (65); one end of the second spring (62) is fixedly connected to the mounting support plate (65) through a fixing column; the other end of the second spring (62) is fixedly connected to the rotating block (63); the rotating block (63) is hinged to the sliding block (64); the sliding surface of the sliding block (64) abuts against the swing rod (61); the swing rod (61) and the second spring (62) are perpendicular to each other; a limiting support column (66) is fixedly connected to the mounting support plate (65); there is a gap between the protruding end of the limiting support column (66) and the swing rod (61).

8. The fixed-point parking and feeding device for a power cable stranding machine according to claim 7, characterized in that: Limiting structures are arranged on both sides of the sliding block (64).

9. The fixed-point parking and feeding device for a power cable stranding machine according to claim 1, wherein: The lifting mechanism (2) includes a lower U-shaped groove rod (21), a lifting driving cylinder (22), a driving support (23), a first limiting wheel (24), a first scissors arm (25), a second scissors arm (26), an upper U-shaped groove rod (27), a second limiting wheel (28) and a lifting support plate (29); the lifting support plate (29) is arranged above the base (1); the lifting support plate (29) and the base (1) are connected by a first scissors arm (25) and a second scissors arm (26) that are hinged to each other in the middle; the upper end of the first scissors arm (25) is hinged to the lifting support plate (29), and the lower end of the first scissors arm (25) slides in the lower U-shaped groove rod (21) through the first limiting wheel (24) that is rotatably connected to the end; the lower U-shaped groove rod (21) is fixedly connected to the base (1); the lower end of the second scissors arm (26) is hinged to the base (1), and the upper end of the second scissors arm (26) slides in the upper U-shaped groove rod (27) through the second limiting wheel (28) that is rotatably connected to the end; the upper U-shaped groove rod (27) is fixedly connected to the lifting support plate (29); the horizontal transfer mechanism (3) is connected to the lifting support plate (29); both ends of the driving support (23) are respectively connected to the rotating shafts of the two first limiting wheels (24); the driving support (23) is fixedly connected to the cylinder rod of the lifting driving cylinder (22); the lifting driving cylinder (22) is fixedly connected to the base (1).

10. A fixed-point parking and feeding device for a power cable stranding machine according to claim 9, characterized in that: The horizontal transfer mechanism (3) includes a transfer driving cylinder (31) and a linear guide rail (32); the moving support plate (4) is connected to the lifting support plate (29) through the linear guide rail (32); one end of the moving support plate (4) is fixedly connected to the cylinder rod of the transfer driving cylinder (31); the cylinder body of the transfer driving cylinder (31) is fixedly connected to the lifting support plate (29).

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