JPS6223697B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a winding width adjustment mechanism for a winding machine.

An example of a conventional winding width adjustment mechanism is shown in FIGS. 1a and 1b. The winding width adjustment mechanism shown in FIG. , the lever 5 moves around a fulcrum 7 and is always pressed against the contact 4 by a spring 6 to follow the movement of the contact 4, and also moves through the contact 8 installed on the lever 5 to move the winding guide frame. Give reciprocating motion to 9. The winding guide frame 9 holds the flyer 10 which is rotated by input from the pulley 12, and as a result, the flyer 10 performs a reciprocating motion in synchronization with the rotational motion to wind the wire. Here, the amount of movement of the winding guide frame 9 is h, the distance between the contact 4 and the fulcrum 7 is l ₁ , the distance between the contact 8 and the fulcrum 7 is l ₂ , and the lead of the heart cam 1 is h _1. For example, the above movement amount h can be expressed by the following equation based on the relationship between l ₁ , l ₂ , and h ₂ .

h=h ₁ ×l ₂ ÷l ₁ ... Therefore, the above movement amount h is the above lead h ₁ and the distance l ₂
When is fixed, it is uniquely determined by changing the position of the contactor 4 on the movable member 3.

In this method, in order to set a wide adjustment range of the movement amount h, the settable range of the contactor 4 must be widened, and fine adjustment of the winding width amount during winding requires the movement of the During the reciprocating movement of the member 3, the position of the contact 4 must be changed. As mentioned above, in order to widen the winding width setting range in this method, the mechanism becomes large and complicated, resulting in poor operability.

FIG. 1b shows another embodiment. 2
1 and 22 are rotating pulleys, and 23 is a stay belt driven in one direction at a constant speed by the pulleys. 24 and 28 are contacts. The electromagnets 25 and 27 are installed close to the stay belt 23 on a movable member 26 that is movable by a reciprocating guide (not shown). Now the stay belt 23 is 2
When moving with clockwise rotation of 1 and 22,
If the electromagnet 25 is excited, the stay belt 23
, the moving part 26 moves to the right, and the contact 24
Activate. Due to the action of the contact 24, the electromagnet 2
5 is de-energized and the electromagnet 27 is energized, the movable member 26 moves to the left, and then the contact 28 is activated. Through these series of operations, the moving member 26 performs reciprocating motion. If the winding guide frame 9 of FIG. 1a is connected to this moving member 26, the winding width can be determined according to the distance between the contacts 24 and 28. In this method, the control system is complicated, the operating accuracy of the contacts 24 and 28 becomes a problem, and the load capacity of the moving member is small.

The present invention has been made in order to eliminate the drawbacks of the conventional technology as described above, namely, to easily perform fine adjustment of the amount of winding width, to enable setting of a wide adjustment range, and to realize a simpler mechanism. It is intended for this purpose.

This will be explained in detail below with reference to FIGS. 2a, b, and c.
FIG. 2a is a schematic diagram of an embodiment of the present invention,
Figures 2b and 2c are cross sections BB and AA of Figure 2a, respectively. One of the outputs of the motor, not shown in FIG.
can be conveyed to. The other output of the motor rotates the shaft 32 through a speed reduction mechanism (not shown),
The function of this adjustment mechanism causes the quill 51 to reciprocate, thereby synchronizing the rotation of the flyer 52 and the reciprocating movement.

On the other hand, the enamelled copper wire or other filament is fed from the supply raw material bobbin 61 through the tension device 55, through the hollow pulley 54 and the spindle 60, and rotated in synchronization with the reciprocating motion of the flyer 52 to the target workpiece, that is, the coil bobbin 62. A coil is formed by winding the wires in precise alignment.

The operation of this adjustment device will be explained below.
One output of the motor that has passed through the deceleration mechanism rotates the shaft 32 on which the heart cam 33 is installed, and the cam locus of the heart cam 33 moves the moving member 36 supported by four linear guides 35 through the cam follower 34 to the heart cam 33. The reciprocating motion is equal to that of the lead.

Further, as shown in FIG. 2c, a spring 57 applied between a spring bracket 56 provided on the main body 31 and a spring bracket 58 provided on the moving member 36 allows
The cam follower 34 is always pressed against the heart cam 33. The lever 38 has one end rotatably connected to the moving member 36 by a shaft 37,
The other end is connected to a quill that moves the spindle in its axial direction, as described below. That is, as shown in FIG. 2a, a rod-shaped guide shaft 53 is provided on slide bearings 48, 48' fixed to the main body 31, parallel to the quill 51, and movable in the longitudinal direction of the quill. The rod-shaped guide shaft 53
One end has a plate 5 installed integrally with the quill 51.
A contact 47 which is fastened to one side of the end of the lever 38 and which is adapted to move together with the quill 51 and installed on the rod-shaped guide shaft 53 is in contact with one side of the end of the lever 38, and furthermore, this contact 47 is connected to the plate 50. The quill 51 is always pressed against the lever 38 by a spring 49 that connects the lever 38 with the quill 51.
8 side).

Further, the intermediate point of the lever 38 constitutes a rotation center adjusting means for varying the rotation center of the lever 38. That is, it has an adjusting moving member 42 that moves in the longitudinal direction of the lever 38 as described later, and a plate member 40 rotatably attached to one end of this adjusting moving member via a support shaft 41 (a second (See Figure d) This plate 40 has at least four guides 39 that support both sides of the lever 38, so that the center of rotation of the lever can be varied by moving the plate 40 up and down. Meanwhile, the adjustment moving member 42 is variably adjusted as follows. That is, the adjustment moving member 42 is made movable by using a butterfly bolt 43 in a T-groove 31a formed in the main body 31 parallel to the longitudinal direction of the lever 38 and a guide 46 movably installed in the T-groove 31a. Further, the movement of the adjustment moving member 42 can be finely adjusted by means of an adjustment screw 44 installed in the main body 31 adjacent to the butterfly bolt 43. Incidentally, reference numeral 45 is an indicator plate that indicates the amount of movement and variable position of the adjustment moving member, and the winding width scale value can be read by this indicator. Therefore, the lever 38 swings around the support shaft 41 of the plate member 40 using the heart cam 33, and thereby the quill 51 is converted into reciprocating motion via the contact 47 and the rod-shaped guide shaft 53.

Through the above series of movements, inputs from the two camshaft motors are converted into reciprocating motion of the quill 51.

In addition, the method for adjusting the winding width using this adjustment mechanism will be explained below. First, the wing bolt 43
Loosen the plate 4 that shows the winding width scale value.
5, move the moving member 42 until the desired winding width value matches the scale line displayed on the left end of the moving member 42, which moves with the rotation of the adjustment screw 44.
, and then tighten the butterfly bolt 43 to secure the moving member 4.
If 2 is fixed, the desired winding width can be achieved.

To explain the relationship between the position of the fulcrum and the winding width with reference to Figures 3a and 3b, in Figure 3a, the amount of movement of the winding guide frame, that is, the winding width, is h, and the lead of the heart cam is _h ) The distance between the input line and the line of action, that is, the distance between the rod-shaped guide shaft and the moving member 36, is l ₁ (fixed), and the distance between the input line and the fulcrum, that is, the distance between the fulcrum 41 and the moving member 36 is l ₂ (variable). Then, h can be expressed by the following formula.

h= _h1 ×( _l1 - _l2 )/ _l2 ... FIG. 3b shows a graph showing the relationship between l2 _and h when specific numerical values in the embodiment of the present invention are applied. As is clear from the equation, this graph is nonlinear and has l ₂ =0 as an asymptote. Of course, the amount of l ₂ that can be achieved is limited due to structural constraints, but it has become clear that the setting range of l ₂ can be widened as long as the amount of movement of the fulcrum is small.

As described above, in the present invention, the fulcrum 41 is set to be movable, and the presence of the adjustment screw 44 allows the fulcrum to be moved minutely, so the winding width can be adjusted over a wide range and easily adjusted. It has the effect of making it more effective.

[Brief explanation of the drawing]

FIGS. 1a and 1b are front views showing a conventional winding width adjustment mechanism; FIGS. 2a, b, c, and d are front views showing an embodiment of the present invention; sectional views taken along line B-B; - A sectional view and a perspective view of the main parts, FIG. 3 a is an explanatory diagram showing the principle of the present invention, and FIG. 3 b is a characteristic showing the relationship between l ₂ and h according to an embodiment of the present invention. It is a diagram. 36... Moving member, 38... Lever, 39... Guide, 40... Plate material, 41... Fulcrum, 42... Moving member,
44...adjustment screw.

Claims (1)

[Claims] 1. In a winding adjustment mechanism that winds a spindle by reciprocating in its axial direction and adjusts the winding width of a spindle equipped with a flyer, one end is connected to the quill of the spindle, and the other end is connected to a cam via a cam follower. The quill has a means for constantly indexing the quill to the lever side, and the other end of the lever has a means for constantly indexing the cam follower, and the intermediate part of the lever A winding comprising a plate member that is provided with guides for holding both sides and is movable in the longitudinal direction of the lever, and that the plate member is rotatably supported by a fulcrum shaft and supported by an adjustment member that adjusts the movement in the longitudinal direction of the lever. Winding width adjustment mechanism of wire machine.