Wire bundling device

Abstract

To provide a wire bundling device in which, even when the tip of a wire is clamped and fixed between a winding drum and a second regulating plate, the central axis of the winding drum is not inclined relative to the central axis of the second regulating plate, and the central axis of a wire bundle wound around the outer periphery of the winding drum is perpendicular to the second regulating plate.SOLUTION: A first regulating plate 21 is fixed to a first shaft member 11, and a second regulating plate 22 is fixed to a second shaft member 12. The first shaft member 11 is movable between a connected position connected to the second shaft member 12 and a separated position separated from the second shaft member 12. Each of multiple trunk pieces 31 is connected to the first shaft member 11 by connecting members 4a, 4b so as to be movable in the central axial direction. When the first shaft member 11 is in the separated position, the multiple trunk pieces 31 are separated from the second regulating plate 22, and when the first shaft member 11 is in the connected position, the multiple trunk pieces 31 abut against the second regulating plate 22. When the first shaft member 11 moves relatively from the separated position to the contact position, the wire is sandwiched and fixed between the trunk pieces 31 and the second regulating plate 22.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a wire bundling device. [Background technology]

[0002] A predetermined length of wire material such as electric wire is wound around the outer periphery of a rotating cylindrical winding drum to form a bundle, and then the bundle is bound together at predetermined intervals around the circumference with cable ties or the like before being distributed and sold.

[0003] As an example of a wire bundling device for winding wire into a bundle, Patent Document 1 discloses a device that includes a turntable (second restricting plate), a flange (first restricting plate) provided above the turntable at a distance from and facing the turntable, and an inverted cone-shaped winding drum (winding drum) made up of multiple divided pieces (trunk pieces) attached to the underside of the flange, with the turntable, flange, and winding drum rotating together to wind the wire onto the winding drum. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Utility Model Application Publication No. 3-12856 Summary of the Invention [Problem to be solved by the invention]

[0005] In conventional wire bundling devices, the tip of the wire in the supply direction is fixed to the winding drum by clamping the tip of the wire between the turntable and the winding drum, as shown in Figures 2 and 4 of Patent Document 1, for example.

[0006] As shown in Fig. 6(a), when the tip of the wire rod C is sandwiched between the turntable 92 and the winding drum 93, the central axis Ob of the winding drum 93 is tilted with respect to the central axis Oa of the turntable 92. As a result, as shown in Fig. 6(b), the wire rod bundle CB wound around the outer periphery of the winding drum 93 is in a state of being tilted with respect to the central axis Oa of the turntable 92. The wire rod bundle CB wound at an angle with respect to the central axis Oa of the turntable 92 is difficult to handle during transportation, storage, etc.

[0007] The present invention has been made in consideration of such conventional problems, and its purpose is to provide a wire bundle taking-up device in which, even when the tip of the wire is clamped and fixed between the winding drum and the second regulating plate, the central axis of the winding drum does not tilt relative to the central axis of the second regulating plate, and the central axis of the wire bundle wound around the outer periphery of the winding drum is perpendicular to the second regulating plate. [Means for solving the problem]

[0008] In order to achieve the above object, a wire rod bundling device according to one aspect of the present invention includes a first regulating plate and a second regulating plate that are spaced apart and opposed to each other, and a cylindrical winding drum that is provided between the first regulating plate and the second regulating plate and has a wire rod wound around its outer periphery, the winding drum being composed of a plurality of drum pieces that are divided in the circumferential direction, the first regulating plate, the second regulating plate, and the winding drum rotating integrally, the first regulating plate being fixed to a first shaft member, and the second regulating plate being fixed to a second shaft member that has a common central axis with the first shaft member, and the first shaft member being rotated between a connected position connected to the second shaft member and a separated position separated from the second shaft member. The multiple body pieces are movable relative to the second shaft member, and each of the multiple body pieces is connected to the first shaft member by a connecting mechanism so as to be movable in the central axial direction; when the first shaft member is in the separated position, the multiple body pieces are separated from the second regulating plate, and when the first shaft member is in the connected position, the multiple body pieces abut against the second regulating plate; when the first shaft member moves relatively from the separated position to the contact position, if there is a wire between the multiple body pieces and the second regulating plate, the wire is sandwiched and fixed between the body piece of the multiple body pieces that abuts against the wire and the second regulating plate, and the remaining multiple body pieces contact the second regulating plate.

[0009] In the wire bundling device of the above configuration, it is preferable that each of the multiple trunk pieces can also be moved radially by the connecting mechanism, and that when the first shaft member moves from the connection position to the separation position, each of the multiple trunk pieces moves radially inward.

[0010] The radially inward movement of the plurality of trunk segments is preferably a translational movement.

[0011] In the wire bundling device of the above configuration, the connecting mechanism may comprise a pair of plate-shaped connecting members corresponding to each of the plurality of trunk pieces, one longitudinal end side of the pair of connecting members being rotatably connected to the plurality of trunk pieces at two predetermined locations spaced a predetermined distance apart in the central axis direction on the inner peripheral surfaces of the plurality of trunk pieces, and the other longitudinal end side being rotatably connected to the first shaft member at locations on the outer peripheral surface of the first shaft member that correspond to the two predetermined locations on the plurality of trunk pieces.

[0012] The wire bundling device having the above-described configuration may further include a biasing means for constantly biasing the plurality of trunk pieces in the direction of the second regulating plate.

[0013] The biasing means may be a tension coil spring provided on each of the plurality of body pieces, one end of the tension coil spring being attached to each of the plurality of body pieces, and the other end of the tension coil spring being attached to a position on the first shaft member closer to the second shaft member than the attachment positions of the plurality of body pieces, at a spaced position of the first shaft member. [Effects of the Invention]

[0014] According to the wire bundle taking-up device of the present invention, even when the tip of the wire is clamped and fixed between the winding drum and the second regulating plate, the central axis of the winding drum does not tilt relative to the central axis of the second regulating plate, and the central axis of the wire bundle wound around the outer periphery of the winding drum is perpendicular to the second regulating plate.

[0015] Furthermore, if each of the plurality of trunk pieces in the wire bundle taking-up device of the present invention can be moved radially by the connecting mechanism, and when the first shaft member moves from the connected position to the separated position, each of the plurality of trunk pieces moves radially inward, it becomes easier to pull out the winding drum from the wire bundle after the wire is wound around the outer periphery of the winding drum to form a wire bundle.

[0016] Furthermore, if the radially inward movement of the multiple trunk pieces is a parallel movement, there is no risk that the surface of the tip of the wire material sandwiched between the trunk piece and the second regulating plate will be rubbed by the trunk piece when the trunk piece moves radially inward, and the surface of the tip of the wire material will not be damaged. [Brief explanation of the drawings]

[0017] [Figure 1] 1 is a perspective view of a wire bundling device according to an embodiment of the present invention; [Figure 2] 1 is a vertical cross-sectional view of a wire bundling device according to an embodiment of the present invention. [Figure 3] 2 is a process diagram showing how wire rods are bundled by the wire rod bundling device of FIG. 1. FIG. [Figure 4] 2 is a process diagram showing how wire rods are bundled by the wire rod bundling device of FIG. 1. FIG. [Figure 5] FIG. 2 is a plan view of the winding drum for explaining the change in the outer diameter of the winding drum. [Figure 6] 10A and 10B are diagrams illustrating a conventional wire bundling device. DETAILED DESCRIPTION OF THE INVENTION

[0018] Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to these embodiments.

[0019] Fig. 1 is a perspective view of a wire bundling device according to one embodiment of the present invention, and Fig. 2 is a vertical cross-sectional view. The wire bundling device S shown in Figs. 1 and 2 includes a first shaft member 11 that is rotatable and movable in the vertical direction (in the direction of the central axis), a ring-shaped first regulating plate 21 fixed to the first shaft member 11, a cylindrical winding drum 3 that is attached to the first shaft member 11 via connecting mechanisms 4a and 4b so as to be movable in the vertical direction, has a maximum outer diameter smaller than the inner diameter of the first regulating plate 21, and is located within a central opening of the first regulating plate 21, a second shaft member 12 that shares a central axis O1 with the first shaft member 11, is located below the first shaft member 11, and is rotated by a motor M, and a disk-shaped second regulating plate 22 fixed to the second shaft member 12. Each of these components will be described below.

[0020] (2nd shaft member) The second shaft member 12 is a drive shaft member that rotates the second regulating plate 22 and, when the first shaft member 11 is connected to it, rotates the first shaft member 11, thereby rotating the first regulating plate 21 and the hoisting drum 3. The second shaft member 12 is connected to the drive shaft of the motor M and is rotated by the rotational drive of the motor M. At the upper end of the second shaft member 12, recesses 121 that engage with protrusions 111 formed at the lower end of the first shaft member 11 are provided at predetermined intervals in the circumferential direction. When the first shaft member 11 moves downward to a connection position where it is connected to the second shaft member 12, the protrusions 111 of the first shaft member 11 engage with the recesses 121 of the second shaft member 12, and the second shaft member 12 and the first shaft member 11 become rotatable as a unit.

[0021] (Second restriction plate) The second restricting plate 22 is fixed to the second shaft member 12 via a support member 6 fixed to the upper part of the second shaft member 12, and rotates together with the second shaft member 12. The support member 6 is cylindrical, and the second shaft member 12 is inserted into a through-hole that passes through in the central axis direction, and the support member 6 is fixed to the second shaft member 12. The support member 6 has a disk-shaped mounting portion 61 that extends radially outward on the outer periphery of the upper part. The second restricting plate 22 is placed on the mounting portion 61 of the support member 6 and fixed with screws or the like.

[0022] (1st shaft member) The first shaft member 11 has a common central axis O1 with the second shaft member 12 and is located above the second shaft member 12. The first shaft member 11 can be moved up and down by a driving means (not shown) between a connected position where it is connected to the second shaft member 12 and a separated position where it is separated from the second shaft member 12. The first shaft member 11 has a plurality of protrusions 111 at a predetermined interval in the circumferential direction on its lower end. When the first shaft member 11 is in the connected position, the protrusions 111 of the first shaft member 11 engage with the recesses 121 of the second shaft member 12. This allows the first shaft member 11 to rotate integrally with the second shaft member 12.

[0023] (holding member) The retaining member 7, together with the auxiliary disc 8, serves to hold the first regulating plate 21. The retaining member 7 has a cylindrical portion 71 with a through-hole passing through in the direction of the central axis, and a skirt portion 72 that extends downward from the lower end of the cylindrical portion 71 and has an outer diameter larger than that of the cylindrical portion 71. A ring-shaped step surface 73 is formed between the cylindrical portion 71 and the skirt portion 72. The first shaft member 11 is inserted through the through-hole of the retaining member 7, and the retaining member 7 is fixed to the first shaft member 11 and rotates together with the first shaft member 11. The inner diameter of the skirt portion 72 of the retaining member 7 is larger than the maximum outer diameter of the winding drum 3, and the skirt portion 72 of the retaining member 7 is positioned so as to cover the upper outer periphery of the winding drum 3.

[0024] (auxiliary disc) The auxiliary disk 8 suspends and holds the first restricting plate 21. The auxiliary disk 8 is ring-shaped, and its inner diameter is slightly larger than the outer diameter of the cylindrical portion 71 of the holding member 7 and smaller than the outer diameter of the skirt portion 72 of the holding member 7. The central opening of the auxiliary disk 8 is inserted into the cylindrical portion 71 of the holding member 7, and the auxiliary disk 8 is placed and fixed on a step surface 73 between the cylindrical portion 71 and skirt portion 72 of the holding member 7. (First restriction plate) The first regulating plate 21 regulates the upper end position of the wire bundle CB when the wire C is wound around the outer periphery of the winding drum 3 to form the wire bundle CB. The first regulating plate 21 is ring-shaped with an outer diameter larger than that of the auxiliary disk 8, and is suspended and fixed from the auxiliary disk 8 by a plurality of columnar members 81 that are provided at predetermined intervals around the circumferential direction of the auxiliary disk 8 and hang down. The inner diameter of the central opening of the first regulating plate 21 is larger than the maximum outer diameter of the winding drum 3, and the winding drum 3 is positioned within the central opening of the first regulating plate 21 so as to be movable up and down.

[0025] (winding drum) The winding drum 3 has a cylindrical shape, and the wire C is wound around its outer periphery. The winding drum 3 is composed of multiple trunk segments 31 divided in the circumferential direction. Each of the multiple trunk segments 31 is connected to the first shaft member 11 by connecting members 4a, 4b so that it can move up and down. There is no limit to the number of segments into which the trunk segments 31 are divided, and the number may be determined appropriately taking into account the outer diameter of the winding drum 3, the outer diameter of the first shaft member 11, etc.

[0026] (Connection mechanism) The connecting mechanism connects each of the multiple trunk pieces 31 to the first shaft member 11 so that the trunk pieces 31 can move up and down. Each of the multiple trunk pieces 31 has two protrusions 311a, 311b on its inner surface that protrude radially inward at positions spaced a predetermined distance apart in the vertical direction at the circumferential center. The first shaft member 11 also has two protrusions 112a, 112b that protrude radially outward at positions corresponding to the two protrusions 311a, 311b of each of the multiple trunk pieces 31. The protrusions 311a, 311b of each of the multiple trunk pieces 31 and the corresponding protrusions 112a, 112b of the first shaft member 11 are connected by plate-shaped connecting members 4a, 4b. Specifically, one longitudinal end of the connecting members 4a, 4b is rotatably connected to the protrusions 311a, 311b of the body piece 31, and the other longitudinal end is rotatably connected to the protrusions 112a, 112b of the first shaft member 11. Since each of the multiple body pieces 31 is connected to the first shaft member 11 by the connecting members 4a, 4b in this way, each of the multiple body pieces 31 can move individually in the vertical direction and parallel to the first shaft member 11.

[0027] Furthermore, the outer diameter of the winding drum 3 is at its maximum when the connecting members 4a, 4b are perpendicular to the first shaft member 11 (see FIG. 5(b)), and when the winding drum 3 moves upward or downward from that position, the outer diameter of the winding drum 3 decreases in accordance with the vertical movement distance (see FIG. 5(a)). As can be seen from the plan view of FIG. 5, each connecting member 4a, 4a is a pair that sandwiches the protrusion 112a and the protrusion 311a from both sides in the circumferential direction and is rotatably attached to the protrusion 112a and the protrusion 311a with screws.

[0028] A tension coil spring 5 is interposed between the upper protrusions 311a of the multiple trunk pieces 31 and the lower protrusions 112b of the first shaft member 11. The tension coil spring 5 constantly biases each of the multiple trunk pieces 31 downward relative to the first shaft member 11.

[0029] (Movement of the winding drum) When the first shaft member 11 is in a spaced position away from the second shaft member 12, the multiple trunk pieces 31 of the hoisting drum 3 are in contact with each other with no gaps in the circumferential direction due to their own weight and the biasing force of the tension coil spring 5, and the hoisting drum 3 is positioned at the lowest position relative to the first shaft member 11 (see FIG. 3(a)). In this state, the outer diameter of the hoisting drum 3 is at its smallest diameter (see FIG. 5(a)).

[0030] When the first shaft member 11 moves downward, first, the lower end surface of the hoisting drum 3 (plurality of trunk segments 31) abuts against the second restricting plate 22, preventing the downward movement of the hoisting drum 3 (plurality of trunk segments 31). When the first shaft member 11 further moves downward and reaches the connected position where it is connected to the second shaft member 12, the hoisting drum 3 (plurality of trunk segments 31) moves upward relative to the first shaft member 11, and the connecting members 4a, 4b become perpendicular to the first shaft member 11 (see FIG. 3(b)). At this time, the plurality of trunk segments 31 move in parallel radially outward, creating gaps between the plurality of trunk segments 31 adjacent in the circumferential direction, and the outer diameter of the hoisting drum 3 becomes its maximum diameter (see FIG. 5(b)).

[0031] (Wire bundle) When a wire rod C is bundled using the wire rod bundling device S having such a structure, first, the tip of the wire rod C is supplied from the nozzle 50 (shown in FIG. 1) so as to cross, preferably vertically, from outside to inside the position where the second regulating plate 22 is to abut on the lower end surface of the winding drum 3 (FIGS. 1 and 3(a)). Next, the first shaft member 11 is moved from the separated position to the connected position. At this time, the trunk piece 31 of the multiple trunk pieces 31 that abuts on the wire rod C is prevented from moving further downward and is positioned higher relative to the first shaft member 11 than the other trunk pieces 31. Meanwhile, the remaining multiple trunk pieces 31 move together with the first shaft member 11 and abut on the second regulating plate 22, and then the first shaft member 11 is connected to the second shaft member 12.

[0032] When the first shaft member 11 reaches the connecting position, the connecting members 4a, 4b of the trunk pieces 31 other than the trunk piece abutting the wire C are positioned perpendicular to the first shaft member 11, and the outer diameter of the winding drum 3 reaches its maximum diameter (see Figure 5(b)).

[0033] On the other hand, as shown in Figure 3(b), the connecting members 4a, 4b of the trunk piece 31 that abuts against the wire C are tilted upward from the position where they are perpendicular to the first shaft member 11, and the tension coil spring 5 is stretched more than the tension coil springs 5 ​​of the other trunk pieces 31, and the trunk piece 31 is urged downward with a stronger urging force. The urging force of the tension coil spring 5 and the weight of the trunk piece 31 fix the tip of the wire C between the trunk piece 31 and the second restricting plate 22. The fixing force of the tip of the wire C can be adjusted by replacing it with a tension coil spring 5 with a different spring constant.

[0034] In the wire rod bundle taking-up device of the present invention, as in the conventional device, the tip of the wire rod C is fixed by the trunk piece 31 and the second regulating plate 22, but the trunk piece 31 that is in contact with the wire rod C can move individually, so the other multiple trunk pieces 31 that are not in contact with the wire rod C abut against the second regulating plate 22, and unlike the conventional device, the central axis of the first shaft member 11 is not inclined relative to the central axis of the second regulating plate 22. As a result, the central axis of the wire rod bundle CB wound around the outer periphery of the winding drum 3 is perpendicular to the second regulating plate 22.

[0035] When the first shaft member 11 reaches the connecting position and the tip of the wire rod C is fixed by the trunk piece 31 and the second restricting plate 22, the motor M is driven to rotate, causing the second shaft member 12 and the first shaft member 11 to rotate integrally, and the first restricting plate 21, the second restricting plate 22, and the winding drum 3 to also rotate integrally. In accordance with the rotation of the second shaft member 12, the nozzle 50 (shown in FIG. 1) moves vertically and radially outward by a conventionally known moving means, and the wire rod C supplied from the nozzle 50 is wound several times vertically and radially outward around the outer periphery of the winding drum 3 to form a wire rod bundle CB (FIG. 4(c)).

[0036] When the wire rod C is wound around the outer periphery of the winding drum 3 to form a wire rod bundle CB, the rear end of the wire rod bundle CB is cut by a cutting means (not shown). The first shaft member 11 and the winding drum 3 then move from the connected position to the separated position (FIG. 4(d)). As the winding drum 3 moves upward, the front end of the wire rod bundle CB is released from its fixed position. At the same time, the multiple trunk segments 31 of the winding drum 3 move downward relative to the first shaft member 11 due to their own weight and the biasing force of the tension coil spring 5, reducing the outer diameter of the winding drum 3 (see FIG. 5(a)). This makes it easier to remove the winding drum 3 upward from the wire rod bundle CB. Furthermore, because the multiple trunk segments 31 of the winding drum 3 move radially inward in parallel upward, the lower end surfaces of the multiple trunk segments 31 of the winding drum 3 do not rub against the front end of the wire rod C or the second regulating plate 22, and there is no risk of damaging the wire rod C or the second regulating plate 22.

[0037] The wire bundle CB thus formed is transported to the next process, where it is bound at predetermined positions in the circumferential direction and stored / transported.

[0038] (Other variations) Although the preferred embodiments of the present invention have been described above, the present invention is not limited to these embodiments. Addition, omission, substitution, and other modifications of the configuration are possible within the scope of the spirit of the present invention. The present invention is not limited by the above description, but is limited only by the scope of the appended claims. For example, in the above embodiment, the first shaft member 11 is moved, but the second shaft member 12 may be moved, or both may be moved. Also, the movement direction of the shaft members is not limited to the vertical direction, but may be, for example, the horizontal direction. [Industrial Applicability]

[0039] According to the wire bundle taking-up device of the present invention, even when the tip of the wire is clamped and fixed between the winding drum and the second regulating plate, the central axis of the winding drum does not tilt relative to the central axis of the second regulating plate, and the central axis of the wire bundle wound around the outer periphery of the winding drum is perpendicular to the second regulating plate, making it easier to handle during transportation, storage, etc. [Explanation of symbols]

[0040] 11 First shaft member 12 2nd shaft member 112a,112b Projection piece (connection mechanism) 21 First Restriction Plate 22 Second Restriction Plate 3 Winding drum 31 Body piece 311a, 311b Projection piece (connection mechanism) 4a, 4b Connecting member (connecting mechanism) 5. Tension coil spring (biasing means) S Wire bundle collecting device C wire rod CB wire bundle

Claims

1. a first restricting plate and a second restricting plate that are spaced apart and opposed to each other; a cylindrical winding drum provided between the first regulating plate and the second regulating plate, around whose outer periphery a wire is wound, The winding drum is composed of a plurality of drum pieces divided in the circumferential direction, A wire rod bundling device in which the first regulating plate, the second regulating plate, and the winding drum rotate integrally, The first restricting plate is fixed to a first shaft member, the second regulating plate is fixed to a second shaft member having a common central axis with the first shaft member, the first shaft member is movable relative to the second shaft member between a connected position where the first shaft member is connected to the second shaft member and a spaced position where the first shaft member is spaced from the second shaft member, Each of the plurality of trunk pieces is connected to the first shaft member by a connecting mechanism so as to be movable in the central axial direction, and when the first shaft member is in a separated position, the plurality of trunk pieces are separated from the second regulating plate, and when the first shaft member is in a connected position, the plurality of trunk pieces abut against the second regulating plate, When the first shaft member moves relatively from the separated position to the contact position, if the wire is between the plurality of body pieces and the second regulating plate, the wire is sandwiched and fixed between the body piece that abuts against the wire and the second regulating plate, and the remaining body pieces contact the second regulating plate.

2. Each of the plurality of trunk segments is also movable in the radial direction by the connecting mechanism, 2. The wire bundling device according to claim 1, wherein when the first shaft member moves from the connection position to the separation position, each of the plurality of trunk pieces moves radially inward.

3. 3. The wire bundling device according to claim 2, wherein the radially inward movement of the plurality of trunk pieces is a translational movement.

4. The connecting mechanism includes a pair of plate-shaped connecting members corresponding to each of the plurality of trunk segments, 4. The wire bundling device according to claim 3, wherein one longitudinal end of the pair of connecting members is rotatably connected to the plurality of trunk pieces at two predetermined locations on the inner peripheral surfaces of the plurality of trunk pieces that are spaced a predetermined distance apart in the central axis direction, and the other longitudinal end is rotatably connected to the first shaft member at locations on the outer peripheral surface of the first shaft member that correspond to the two predetermined locations on the plurality of trunk pieces.

5. The wire bundling device according to any one of claims 1 to 4, further comprising a biasing means for constantly biasing the plurality of trunk pieces in the direction of the second regulating plate.

6. The biasing means is a tension coil spring provided on each of the plurality of trunk pieces, 6. The wire bundling device according to claim 5, wherein one end of the tension coil spring is attached to each of the plurality of trunk pieces, and the other end of the tension coil spring is attached to a position of the first shaft member closer to the second shaft member than the attachment positions of the plurality of trunk pieces at a spaced position of the first shaft member.

Images