Manual winding device

Abstract

A manual winding device comprises a wire bracket, a clamp, a winder, and a tension maintainer. The wire bracket supplies wire, while the clamp holds it in place. The winder, adjacent to the clamp, includes a driving mechanism and a coil former holding unit. The coil former holding unit is configured to mount a coil former. The driving mechanism is configured to drive the coil former holding unit to rotate, winding the wire onto the coil former. The tension maintainer, located between the clamp and the winder, includes a sliding base, a sliding block, and four connecting rods forming a quadrilateral. The sliding block is movably disposed on the sliding base. Two opposite connection points are pivotally mounted on the base and sliding block, while the other two points each hold a pulley around which the wire passes. The tension maintainer ensures the wire's tension is maintained during winding.

1 . A manual winding device, comprising:
 a wire bracket configured for placement of a wire source to supply wire;   a clamp positioned adjacent to the wire bracket, wherein the clamp is configured to clamp a portion of the wire;   a winder positioned at one side of the clamp, wherein the winder comprises a driving mechanism and a coil former holding unit, the coil former holding unit is configured to mount a coil former, and the driving mechanism is configured to drive the coil former holding unit to rotate, thereby winding the wire onto the coil former; and   a tension maintainer positioned between the clamp and the winder, wherein the tension maintainer comprises a sliding base, a sliding block, and four connecting rods, the sliding block is movably mounted on the sliding base, the connecting rods are interconnected to form a quadrilateral, with two opposite connection points pivotally mounted on the sliding base and the sliding block, and the other two connection points each being provided with a pulley, wherein the wire is wound around each pulley, and the tension maintainer is configured to maintain the tension of the wire.   
     
     
         2 . The manual winding device according to  claim 1 , wherein the tension of the wire is related to the angle between the connecting rods and the weight of the sliding block. 
     
     
         3 . The manual winding device according to  claim 1 , wherein the sliding base comprises a base and a sliding rail vertically extending from the base, and at least one tension spring is disposed between the sliding block and the base. 
     
     
         4 . The manual winding device according to  claim 1 , wherein the sliding base comprises a base and a sliding rail vertically extending from the base, and a plurality of mounting holes are arranged along an extending direction of the sliding rail, and a stopper is provided in at least one of the mounting holes. 
     
     
         5 . The manual winding device according to  claim 1 , wherein the connecting rods are interconnected to form a parallelogram, and the lengths of one pair of parallel connecting rods are different from the lengths of the other pair of parallel connecting rods. 
     
     
         6 . The manual winding device according to  claim 1 , wherein when the sliding block moves upward along the sliding base, the distance between the two connection points of the connecting rods with pulleys decreases; and when the sliding block moves downward along the sliding base, the distance between the two connection points of the connecting rods with pulleys increases. 
     
     
         7 . The manual winding device according to  claim 1 , wherein the driving mechanism comprises a worm, a worm gear and a rotating shaft, the worm is connected to a handwheel, the worm meshes with the worm gear, and the rotating shaft is disposed on the worm gear, and the coil former holding unit is installed at one end of the rotating shaft. 
     
     
         8 . The manual winding device according to  claim 7 , wherein the coil former is mounted on one end of the rotating shaft, and the coil former holding unit is inserted into the inner hole of the coil former and is sleeved on the rotating shaft to secure the coil former. 
     
     
         9 . The manual winding device according to  claim 8 , wherein the number of the coil former holding units is plural, and the sizes of the coil former holding units correspond to the inner hole sizes of different coil formers. 
     
     
         10 . The manual winding device according to  claim 1 , further comprising a counter drivingly connected to the winder.