Tensioning device and tensioning method
A tensioning device and tension technology, applied in transportation and packaging, electrical components, conveying filamentous materials, etc., can solve the problems of difficulty in keeping the tension of the wire 2 constant, unable to follow the elastic force of the elastic member 6, etc., and reduce the amount of movement. Effect
Inactive Publication Date: 2016-04-20
NITTOKU ENG CO LTD
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Problems solved by technology
[0009] However, when the speed of the wire 2 wound on the winding core of the winding machine fluctuates significantly and its speed temporarily decreases significantly, the force of the wire 2 pulling the wire guide 5 temporarily decreases significantly. The wire guide 5 and the tension arm 4 that absorbs its variation will make its rotation unable to follow the elastic force of the elastic member 6 due to its inertial force, so that the wire guide 5 and the coil that are arranged at the front end of the tension arm 4 will be generated. When the wire 2 between the cores is temporarily slack
Therefore, in the existing tensioning device, there is a problem that when the speed of the wire 2 wound to the winding core of the different diameter of the winding machine fluctuates significantly, it is difficult to adjust the speed of the wire 2 conveyed toward the winding machine. Tension is kept constant
Method used
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[0029] Next, the form for implementing this invention is demonstrated in detail based on drawing.
[0030] Figure 1~Figure 3 The tensioning device 20 of the present invention is shown in . This tensioning device 20 is used together with the winding machine 10 , applies a predetermined tension to the wire 11 drawn from the wire supply source 12 , and guides the wire 11 toward a winding core 10 a such as a bobbin of the winding machine 10 . The wire 11 of this embodiment is a coated copper wire with a circular or square cross-section for forming a coil used in a motor part. In the winding machine 10, the wire 11 formed by the coated copper wire is Winding is performed to form a coil.
[0031] On the front side of the housing 21 of the tensioning device 20, a wire guide 22 is provided, which is fed from a wire supply source, that is, a spool 12 ( figure 2 ) lead-out wire 11 is inserted through; a plurality of guide pulleys 23 a to 23 e, which pull and wind the wire 11 after ...
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The tensioning device and the tension application method of the present invention can absorb the fluctuation in the speed of the wire even if the speed of the wire fluctuates significantly, and keep the tension of the wire fed to the winding machine constant. The tensioning device is equipped with: a lead-out pulley, which is used for winding the wire rod derived from the wire supply source; a lead-out speed control unit, which controls the speed of the wire drawn from the wire supply source and towards the winding machine by controlling the rotation of the lead-out pulley; A movable first tension pulley that diverts the wire led from the lead-out pulley; a movable second tension pulley that further diverts the wire diverted by the first tension pulley toward the winding machine; applying force A unit that expands the space between the first tension pulley and the second tension pulley by applying force. Preferably, a pair of tension arms are provided so as to be rotatable around a base end, and a tension pulley shaft is supported on the front end of the tension arms.
Description
technical field [0001] The present invention relates to a tensioning device and a tension applying method for applying a predetermined tension to a wire drawn out from a wire supply source and guided to a winding machine. Background technique [0002] In the past, such as Figure 8 As shown, the following device is known as a tensioning device equipped with a winding machine capable of forming a coil. Arm 4, the tension arm 4 can rotate around the rotation fulcrum 4a of the base end; the wire guide 5, the wire guide 5 is installed on the front end of the tension arm 4, after the wire 2 derived from the lead-out pulley 3 passes through, The wire 2 is turned and guided towards the winding machine; the elastic member 6 applies tension to the tension arm 4 at a specified position between the pivot point 4a of the tension arm 4 and the wire guide 5 The elastic force corresponding to the rotation angle of the arm 4; the potentiometer 7, the potentiometer 7 detects the rotation an...
Claims
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IPC IPC(8): B65H59/36
CPCB65H51/06B65H54/10B65H59/32B65H59/36B65H59/388B65H2701/36H01F41/094B21C47/02B65H59/38B65H61/00
Inventor 日下田裕司
Owner NITTOKU ENG CO LTD