JPH0245251Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a bundle frame structure for a bundler.

(b) Prior Art A bundler is a device that winds coated electric wires into a predetermined coil shape. It has a bundle frame for winding the wires. The bundle frame has a disc-shaped lower frame and an upper frame, and a winding core provided integrally with the upper frame, and these can be rotated integrally by an electric motor. In addition, the upper frame and the winding core integrated with it can move up and down, and after winding a predetermined length of wire, the winding core and upper frame rise, and the wound coil is transferred to the binding machine in the next process. sent to and tied up. When inserting wires into the bundle frame for the first time, the core is raised, and when the tip of the wire coming in along the lower frame reaches the bottom of the core, the core is lowered and the lower end of the core Sandwich the wire between the and the bottom frame. The wire is clamped by the force of a spring that presses the core downward. Winding is started by rotating the bundle frame in this state.

(c) Problems that the invention aims to solve However, the conventional bundle frame as mentioned above has
There is a problem in that when the electric wire is sandwiched between the lower frame and the winding core and starts rotating, the restraining part at the tip of the electric wire may come off. That is, the winding core is pressed toward the lower frame by the force of the spring, and the frictional force generated thereby restrains the tip of the electric wire. However, in the case of thick and hard wires, especially in the case of coaxial cables with hard outer sheathing, the lower end of the winding core does not dig into the sheathing and sufficient frictional force cannot be obtained, which may cause the wire to come off as described above. . The present invention aims to solve these problems.

(d) Means for Solving the Problems The present invention solves the above problems by additionally providing a pressing portion having a sawtooth cross-section in the circumferential direction at the end of the winding core. That is, in the bundle frame structure of the bundler according to the present invention, two annular pressing portions are provided at the end of the winding core 16 on the side where the wires are sandwiched, and one of the annular pressing portions 16b has a radial cross-sectional shape. The other annular pressing portion 70 is wedge-shaped.
A has a sawtooth cross-sectional shape in the Enshu direction.
Note that the reference numerals in parentheses indicate corresponding members in the embodiments described later.

(E) Action The wedge-shaped section of one annular pressing part bites into the electric wire in a direction perpendicular to the longitudinal direction of the wire, and the saw-toothed part of the other annular pressing part bites into the electric wire in the longitudinal direction. It's crowded. As a result, the lower end of the core is inserted into the sheathing of the wire from two directions orthogonal to each other. As a result, even if the wire is hard and difficult to bend, it can be held securely, and problems such as the wire coming off at the start of winding can be prevented.

(F) Embodiments Figures 1 to 4 show embodiments of the present invention. A lower frame 12 is arranged above a rotating shaft 10 that is rotationally driven by an electric motor (not shown) so as to rotate together with the rotating shaft 10 . The lower frame 12 is disc-shaped and has a flat upper surface. An upper frame 14 is placed above the lower frame 12.
and a winding core 16 integrally connected thereto. The upper frame 14 and the winding core 16 are connected to an air cylinder (not shown) via a rod 18, so that they can be moved up and down. That is, the upper frame 14 is connected to the flange portion of the rod 18 and the shaft 2.
It is connected with the flange portion of 0 by bolts 22. The shaft 20 is connected at its lower end to a hollow shaft 24 provided on its outer periphery by a key 26 so as to rotate together. Further, the hollow shaft 24 and the shaft 20 are also restrained to each other in the axial direction by a bolt 28 and a washer 30. In addition, the hollow shaft 24
has meshing teeth 32 at its lower end, and the meshing teeth 32 are capable of meshing with meshing teeth 34 provided on the upper surface of the rotating shaft 10. Core 1
6 is composed of an arc-shaped member 16a divided into six parts, and when the six arc-shaped members 16a are combined, it has a cylindrical shape. The upper end of each arcuate member 16a constituting the winding core 16 extends upward through a hole provided in the upper frame 14, and these upper ends are connected to a lever 38 by a pin 36. . One end of the lever 38 is swingably supported by the upper frame 14 by a pin 40, and the other end is connected to the upper frame 14 by a spring 42. That is, the adjustment screw 52 is screwed into a female thread provided on the lever 38 and is locked by a nut 54. The upper end of the spring 42 is connected to a hole provided at the lower end of the adjustment screw 52. Further, the lower end of the spring 42 is connected to a hole in a stopper 56 fixed to the upper frame 14. As a result, each arcuate member 16a constituting the winding core 16 is constantly subjected to a downward force by the spring 42. An arcuate member 16 is disposed between the outer circumference of the hollow shaft 24 and the inner diameter of the arcuate member 16a of the winding core 16.
A spring 44 is provided that applies a force to cause the a to swing inward. Further, a convex portion 46 is provided at the lower end on the inner diameter side of the arc-shaped member 16a, and this convex portion 46 is provided at a position corresponding to a roller 48 rotatably provided on the hollow shaft 24. When the member 16a is lowered, the convex portion 4
6 moves below the roller 48 and the member 16a moves upward, the protrusion 46 is arranged to ride on the roller 48. Arc-shaped member 16
As shown in FIG. 3, the lower end of a has an acute edge as a wedge section 16b. For example, the A dimension in Fig. 3 is 4 mm, and the B dimension is 4 mm.
The dimensions are 0.5mm. This arc-shaped member 16a
The wedge-shaped section 16b constitutes one annular pressing section. Further, at the lower end of each arc-shaped member 16a,
As shown in FIG. 3, each saw blade member 70 is attached. The saw blade member 70 is a bolt 7
2 to the arc-shaped member 16a.
Note that an intermediate plate 74 is provided between the arc-shaped member 16a and the saw blade member 70 to close the gap between each arc-shaped member 16a. When the electric wire reaches the gap between the arcuate members 16a, the intermediate plate 74 presses the electric wire. A saw blade 70a as shown in FIG. 4 is provided at the lower end of the saw blade member 70. The C dimension shown in FIG. 4 is 2 mm, and the D dimension is 2.5 mm.
The saw blades 70a of these six saw blade members 70 constitute the other annular pressing portion.

Next, the operation of this embodiment will be explained. 1st
The electric wire 60 advances toward the left along the upper surface of the lower frame 12 from the right side in the figure. At this point, the upper frame is 14
The winding core 16 has moved upward, and a gap is formed between the lower frame 12 and the lower end surface of the winding core 16. When the tip of the electric wire 60 enters inside the outer diameter portion of the winding core 16, the upper frame 14 and the winding core 16 are lowered. As a result, the predetermined arc-shaped member 1 of the winding core 16
An electric wire 60 is connected between the lower end of the lower frame 6a and the upper surface of the lower frame 12.
is inserted. That is, the arc-shaped member 16a
is pushed downward by the force of the spring 42, and this force causes the wedge-shaped cross section 16b at the lower end of the arc-shaped member 16a and the saw blade 70a of the saw blade member 70 to bite into the sheathing of the electric wire 60. . That is,
The wedge-shaped portion 16b bites into the electric wire 60 so as to be perpendicular to the longitudinal direction, and the saw blade 70a bites into the electric wire 60 in the longitudinal direction. When the rotating shaft 10 is rotationally driven in this state, the lower frame 12, the upper frame 14 and the winding core 16
rotate as one. As a result, the electric wire 60 is wound around the outer periphery of the winding core 16. At the start of this winding, the electric wire 60 does not come off from between the winding core 16 and the lower frame 12. This means that the wedge-shaped portion 16b at the lower end of the arc-shaped member 16a and the saw blade 70a are
This is because the wire 60 is firmly caught. By doing this, the electric wires 60 are sequentially attached to the outer periphery of the winding core 16.
is being wound up. When a predetermined amount of winding is completed, the upper frame 14 and the winding core 16 rise. Note that when the winding core 16 rises, the arcuate member 16a is pushed down by the force of the spring 42, and the convex portion 4
6 is removed from contact with the roller 48, the arc-shaped member 16a swings in the direction of reducing the diameter of the entire winding core 16 by the force of the spring 44, and the
6 is in a state where the diameter is reduced in a tapered shape. Therefore, the winding core 16 can be easily moved upward. The wires thus coiled are sent to the next step and bundled by a binding machine.

(g) Effects of the invention As explained above, according to the invention, the electric wire is restrained by the two annular pressing parts whose blades are orthogonal to each other, so that the electric wire has a hard coating and is difficult to bend. The wire can be securely fixed even when winding is started, and the wire can be prevented from coming off at the start of winding.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing an embodiment of the present invention, Fig. 2 is a view taken along the - line in Fig. 1, Fig. 3 is a sectional view taken along the - line in Fig. Figure 3 -
It is a figure along a line. 12... lower frame, 14... upper frame, 16... core,
16b... Wedge-shaped portion, 60... Electric wire, 70...
Saw blade member, 70a...Saw blade.

Claims (1)

[Claims for Utility Model Registration] A winding core having a cylindrical shape and disk-shaped frames arranged on both ends of the core, and the winding core moves relative to one of the frames in the axial direction. The winding core and the one frame are movable toward and away from the other frame, and the winding core and the one frame are movable toward and away from the other frame. The winding core is constructed so that one end of the electric wire can be sandwiched between the other frame and one end of the winding core, and the winding core and both frames can be rotated as a unit, and the winding core is In the bundle frame structure of the bundle taker, which is configured to be able to reduce the diameter so that the wire can be removed after being wound, the one end of the winding core has two annular pressing parts, one of which A bundle frame structure for a bundle collecting machine, wherein the annular pressing part has a wedge-shaped radial cross-sectional shape, and the other annular pressing part has a sawtooth cross-sectional shape in the circumferential direction.