Single-stranded wire pay-off machine
Technical Field
The utility model relates to a paying out machine, concretely relates to single strand wire rod paying out machine.
Background
The cable is generally formed by twisting a plurality of strands of wires, the total cross-sectional area of the plurality of strands of wires of the cable is different according to different current carrying capacities, and the thickness of a single strand of wire of the cable is different according to the flexibility requirement of the cable; the greater the ampacity of the cable and the more flexible the cable, the greater the total cross-sectional area of the multiple wires of the cable and the thinner the single wire. Because a single thick wire rod is easy to be thinned by wire stretching, but a single thin wire rod is not easy to be thickened, the wire rod is often thinned by the thick wire rod in the production process. The existing wire drawing process needs to pay off the coiled thick wire in the wire drawing process, and the paying off process generally draws a wire coil wound with the wire and arranged on a roll shaft to pay off the wire. The thicker the wire, the higher the toughness of the wire, and the too high toughness of the wire in the paying-off process leads to the local part of the wire to be bent and not flat enough, so that the wire stretching is easily influenced. To ensure that the wire rod is kept straight when extending the wire, damping is often arranged on a roll shaft for placing a wire coil, so that the wire rod keeps a tensile force, and the wire rod is straightened. However, the diameter of the wire cannot be kept absolutely uniform, the thicker the wire is, the slower the wire stretching speed is, and the thinner the wire is, the faster the wire stretching speed is, so that the wire stretching speed fluctuates in the wire stretching process, a speed difference is easily formed between the wire stretching speed and the wire releasing speed under the damping effect, and when the speed difference is too large, the wire is easily broken. Therefore, it is necessary to redesign a pay-off machine to solve the above problems.
Disclosure of Invention
The utility model aims to provide a: the single-strand wire pay-off machine can tension a wire to keep the wire straight, can control speed difference and ensures that the wire is not easy to break.
The technical scheme of the utility model is that:
the utility model provides a single strand wire rod paying out machine, it comprises frame, bobbin loader and motor, its characterized in that: the rack is provided with a wire coil rack, a motor is arranged on the rack on one side of the wire coil rack, and the motor is connected with the wire coil rack through a transmission chain; a rocker arm is movably mounted on the machine frame above the motor through a pin shaft, a tension wheel is arranged at the end of the rocker arm, and a guide wheel is arranged on the machine frame above the tension wheel; and a detection probe is arranged on the rocker arm on one side of the pin shaft and is electrically connected with the motor.
The bobbin holder is composed of a transmission shaft, a clamping cylinder and a chuck, the transmission shaft and the clamping cylinder are symmetrically arranged, and the chuck is respectively arranged at the end head of the inner side of the transmission shaft and the end head of a piston rod of the clamping cylinder; the outer end of the transmission shaft is provided with a chain wheel, and the chain wheel is connected with the output shaft of the motor through a transmission chain; the transmission shaft is movably connected with the rack through a bearing, the clamping cylinder is fixedly connected with the rack, and a piston rod of the clamping cylinder is movably connected with the chuck through a bearing.
The driving plates are symmetrically arranged on the chucks of the transmission shaft, strip-shaped holes are formed in the driving plates, and driving rods are fixedly arranged on the strip-shaped holes through locking nuts arranged on two sides of the driving plates.
The center part of the end surface of the inner side of the chuck is provided with a guide block which is conical.
The circumferences of the guide wheel and the tensioning wheel are respectively provided with a plurality of guide grooves.
The machine frame on one side of the guide wheel is provided with a plurality of traction wheels, and the machine frame below the traction wheels is provided with guide rollers through bearing seats.
The beneficial effects of the utility model reside in that:
the single-strand wire pay-off machine can tension a wire by the dead weight of the tension wheel, and the tension wheel can swing through the rocker arm, so that the distance between the tension wheel and the guide wheel can be automatically adjusted, the length of the wire between the tension wheel and the guide wheel can be shortened or prolonged by the swinging of the tension wheel, and the speed difference formed between the wire stretching speed and the wire releasing speed can be overcome by the shortening or the prolonging of the wire, so that the wire is ensured not to be broken easily; meanwhile, the swinging of the rocker arm can be detected through the detection probe, so that the speed difference of the wire can be detected, the rotating speed of the motor can be adjusted according to the speed difference of the wire, and the paying-off speed is further matched with the stretching speed; the problem of current pay-off form the speed difference easily and lead to the wire rod to be broken is solved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic top view of the present invention;
fig. 3 is an assembly schematic diagram of the drive plate of the present invention;
FIG. 4 is a schematic right-side view of FIG. 3;
fig. 5 is a schematic structural view of the guide wheel of the present invention;
figure 6 is the structure of the tensioning wheel of the invention.
In the figure: 1. the device comprises a machine frame, 2, a motor, 3, a rocker arm, 4, a tension wheel, 5, a guide wheel, 6, a detection probe, 7, a transmission shaft, 8, a clamping cylinder, 9, a chuck, 10, a chain wheel, 11, a driving plate, 12, a strip-shaped hole, 13, a driving rod, 14, a guide block, 15, a guide groove, 16, a traction wheel, 17 and a guide roller.
Detailed Description
The single-stranded wire pay-off machine comprises a rack 1, a wire coil rack and a motor 2, wherein the wire coil rack is arranged on the rack 1, the motor 2 is arranged on the rack 1 on one side of the wire coil rack, the motor 2 is connected with the wire coil rack through a transmission chain so as to drive the wire coil rack to rotate through the motor 2 and further drive a wire coil on the wire coil rack to rotate, pay-off is carried out when the wire coil rotates, the rotating speed of the wire coil is controlled through controlling the rotating speed of the motor 2, and further the pay-off speed is controlled, so that the tension force on the wire rod is kept through controlling the pay-off speed in the pay-off process, and the wire rod is kept straight when the wire rod is paid off; the bobbin holder is composed of a transmission shaft 7, a clamping cylinder 8 and a chuck 9, the transmission shaft 7 and the clamping cylinder 8 are symmetrically arranged, the transmission shaft 7 is movably connected with the rack 1 through a bearing, the clamping cylinder 8 is fixedly connected with the rack 1, and a piston rod of the clamping cylinder 8 is movably connected with the chuck 9 through a bearing; the inner side end of the transmission shaft 7 and the piston rod end of the clamping cylinder 8 are respectively provided with a chuck 9, the clamping cylinder 8 is used for pushing the chuck 9 to enable the chuck 9 to clamp the wire coil, so that the transmission shaft 7 drives the wire coil to rotate through the chuck 9 to pay off in the rotating process of the transmission shaft 7, and after the clamping cylinder 8 is reset, the chuck 9 does not clamp the wire coil any more, so that the wire coil can be taken down; the center part of the end face of the inner side of the chuck 9 is provided with a guide block 14, the guide block 14 is conical, the guide block 14 is used for guiding the wire coil in the process of inserting the center hole of the wire coil, so that the center of the wire coil is abutted against the end face of the chuck 9, the centrifugal force between the chuck 9 and the wire coil is further reduced, the stability of the wire coil clamped by the chuck 9 is ensured, and meanwhile, the wire coil is supported by the guide block 14, and the relative position of the wire coil and the chuck 9 is kept; the outer end of the transmission shaft 7 is provided with a chain wheel 10, and the chain wheel 10 is connected with an output shaft of the motor 2 through a transmission chain so that the motor 2 drives the transmission shaft 7 to rotate through the chain wheel 10 in the rotation process of the motor 2.
The driving plates 11 are symmetrically installed on the chucks 9 of the transmission shaft 7, strip-shaped holes 12 are formed in the driving plates 11, driving rods 13 are fixedly installed on the strip-shaped holes 12 through locking nuts arranged on two sides of the driving plates 11, the driving rods 13 are used for being inserted into the end faces of the wire coil through the driving rods 13, meanwhile, the force arm between the chucks 9 and the wire coil is increased through the driving plates 11, and therefore the chucks 9 can drive the wire coil to rotate sequentially through the driving plates 11 and the driving rods 13; the strip-shaped hole 12 is used for conveniently adjusting the position of the driving rod 13, so that the position of the driving rod 13 is convenient to adapt to the specification of a wire coil, and the driving rod 13 is convenient to be connected with the wire coil.
A rocker arm 3 is movably arranged on the frame 1 above the motor 2 through a pin shaft, the end of the rocker arm 3 is provided with a tension wheel 4, a guide wheel 5 is arranged on the frame 1 above the tension wheel 4, the circumferences of the guide wheel 5 and the tension wheel 4 are respectively provided with a plurality of guide grooves 15, the tension wheel 4 has the function of enabling a wire rod to be wound between the tension wheel 4 and the guide wheel 5 for a plurality of times through the guide grooves 15, the wire is straightened by the gravity of the tension wheel 4, and simultaneously, as the tension wheel 4 can swing through the rocker arm 3, so that the distance between the tension wheel 4 and the guide wheel 5 can be changed when the tension of the wire is changed, therefore, when the wire stretching linear velocity is too high, the distance between the tension wheel 4 and the guide wheel 5 is shortened, so that the wire between the tension wheel 4 and the guide wheel 5 is released outwards to overcome the speed difference between the stretching linear velocity and the paying-off speed, and the speed difference is kept in the range that the wire is not easy to break; be provided with test probe 6 on the rocking arm 3 of round pin axle one side, test probe 6 is connected with motor 2 electricity, test probe 6's effect is the swing speed and the swing direction of detecting rocking arm 3, and then swing speed and the swing direction of detecting take-up pulley 4 through test probe 6, detect the speed difference of wire rod from this, and then according to the rotational speed of wire rod speed difference accommodate motor 2, make unwrapping wire speed unanimous with stretch the linear velocity, thereby effectively eliminate the speed difference, further guarantee that the wire rod is difficult for being broken apart, if: when the detection probe 6 detects that the rocker arm 3 swings upwards and the swinging speed is high, the rotating speed of the motor 2 is controlled to be high, so that the paying-off speed is high, and the paying-off speed follows the stretching linear speed; when the detection probe 6 detects that the rocker arm 3 swings downwards and the swinging speed is high, the rotating speed of the motor 2 is controlled to slow down, so that the paying-off speed is slowed down, the paying-off speed is further synchronous with the stretching speed, and the tension force of the wire is kept; a plurality of traction wheels 16 are arranged on the frame 1 at one side of the guide wheel 5, so that the wire is drawn by the traction wheels 16, and the wire is straightened by the action of the traction wheels 16 on the wire; the guide roller 17 is installed on the frame 1 below the traction wheel 16 through a bearing seat, so that the movement direction of the wire rod is changed through the guide roller 17, and the wire rod cannot be separated from the traction wheel 16 due to the fact that the included angle between the wire rod and the traction wheel 16 is too large when the wire rod moves.
This single strand wire rod paying out machine during operation installs the drum on the bobbin loader: the movable wire coil sleeves the center of the end face of one end of the wire coil on a guide block 14 of a chuck 9 on one side of a transmission shaft 7, and simultaneously, a driving rod 13 is inserted into the end face of the wire coil; after the driving rod 13 is inserted in place, the clamping cylinder 8 is started, the clamping cylinder 8 drives the chuck 9 to move towards the wire coil, the guide block 14 on the chuck 9 is pushed to be inserted into the wire coil, and the wire coil is fixed on the wire coil frame; after the wire coil is installed, the end of the wire rod is pulled to enable the wire rod to pass through the guide roller 17 and the traction wheel 16 in sequence, pass through the guide wheel 5 and the tension wheel 4 for multiple times and then be led out from the guide wheel 5; after the wire is threaded, the motor 2 is started, and the motor 2 drives the wire coil to rotate sequentially through the transmission chain, the chain wheel 10, the transmission shaft 7, the chuck 9, the driving plate 11 and the driving rod 13 after being started, so that the wire coil is paid off.
The single-strand wire pay-off machine can tension a wire by the dead weight of the tension pulley 4, and the tension pulley 4 can swing through the rocker arm 3, so that the distance between the tension pulley 4 and the guide wheel 5 can be automatically adjusted, the length of the wire between the tension pulley 4 and the guide wheel 5 can be shortened or prolonged by the swing of the tension pulley 4, the speed difference formed between the wire stretching speed and the wire releasing speed can be overcome by the shortening or the lengthening of the wire, and the wire is prevented from being broken easily; meanwhile, the swinging of the rocker arm 3 can be detected through the detection probe 6, so that the speed difference of the wire can be detected, the rotating speed of the motor 2 can be adjusted according to the speed difference of the wire, and the paying-off speed is further matched with the linear stretching speed; the problem of current pay-off form the speed difference easily and lead to the wire rod to be broken is solved.