JPH0715656U - Bobbin support device - Google Patents

Abstract

(57) [Summary] [Purpose] Easily accommodate bobbins of different shapes. [Structure] The leaf spring 77 is pressed into the groove portion 75 of the accessory holder 46, and the accessory holder 46 is inserted into the mounting hole 50.
The socket bolt 71 is inserted into the bolt insertion hole 52. The leaf spring 77 is returned to the horizontal state by the elastic force, and the engaging claw 8
1 engages with the engaging portion 50a. By fitting the central hole 64 of the small-bore bobbin 62 into the accessory holding body 46, the small-bobbin 6
Hold 2 The leaf spring 77 is pushed to release the engagement with the engaging portion 50a, and the attached holder 46 is pulled out from the mounting hole 50. The bobbin holder 45 has a central hole 4 of a bobbin 40 having a large hole diameter.
4 is fitted and the large bobbin 40 is held.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a bobbin supporting device for supporting a bobbin provided in a wire rod winding device or a wire rod supplying device in an industrial machine such as a twisting machine, a wire drawing machine and an extruder.

[0002]

[Prior art]

 A conventional bobbin supporting device for supporting a bobbin in an industrial machine such as a wire twisting machine, a wire drawing machine or an extruder is one in which the bobbin 1 is mounted on the drive-side and driven-side rotating shafts 2 and 3 as shown in FIG. The pair of pintles 7 is fixed to the opposite ends of the rotary shafts 2 and 3 by bolts 4. The pintle 7 fits into the central hole 6 formed in the flange 5 of the bobbin 1 to hold the bobbin 1 from both sides. A kelly 9 for engaging the bobbin 1 and rotating the bobbin 1 is attached to the outer periphery of the one pintle 7.

A rotary shaft pulley 10 is attached to the rotary shaft 2 on the drive side, and a motor pulley 12 of a motor 11 is connected via a belt 13. Then, the driving force of the motor 11 is transmitted to the drive-side rotating shaft 2, and the rotation of the rotating shaft 2 causes the pintle 7 to rotate and the bobbin 1 to rotate via the kelly 9. As a result, the wire rod winding operation is performed. The driven rotation shaft 3 is movable in the axial direction.

When the bobbin 1 is replaced, the pintle 7 is pulled out from the central hole 6 of the bobbin 1 and the bobbin for the next process is set. Depending on the process, the bobbin to be replaced may have a different shape. In this case, it is necessary to also replace the pintle 7 according to the shape of the bobbin. For this replacement work, the bolt 4 is removed using a tool, the pintle 7 is removed, an appropriate pintle is attached, and the bolt 4 is tightened again.

In order to simplify such pintle replacement work, a hexagon socket head cap screw 21 is used to fix the pintle 20 to the rotating shaft as shown in FIG. 14, and as shown in FIG. In some cases, the pintle 20 is provided with a bolt mounting hole 22 having an opening slightly larger than the top of the hexagon socket head bolt 21. In this structure, when replacing the pintle 20, the hexagon socket head bolt 21 is loosened slightly with a tool, and the pintle 20 is rotated until the opening of the bolt mounting hole 22 reaches the hexagon socket head bolt 21. Remove. Therefore, it becomes unnecessary to remove the bolt 21 each time when the pintle 20 is replaced.

Further, as shown in FIG. 16, the pivots 30 and 31 are cone-shaped, and the Kelly pin 33 engaging with the bobbin 32 is movable in the direction of the bobbin 32. There is one that can hold the bobbin even if it changes. In FIG. 16, reference numeral 35 is a drive side rotary shaft, 36 is a driven side rotary shaft, 37 is a spring for urging the kelly pin 33 toward the bobbin 32, and 38 is a pin insertion hole formed in a flange 39 of the bobbin 32. It is a hole.

[0007]

[Problems to be solved by the device]

 In the conventional bobbin support device, the bolt 4 and the hexagon socket head bolt 21 are used, so anyway, a tool for loosening or tightening the bolt 4 or the hexagon socket head bolt 21 is required, and replacement is required. The work was complicated.

Further, in the bobbin supporting device shown in FIG. 16, since the pivots 30 and 31 are cone-shaped, the distance between the flange and the kelly changes according to the hole diameter of the center hole of the bobbin, and in some cases the kelly pin 33. Could not be inserted into the bobbin pin insertion hole.

In view of the above, it is an object of the present invention to provide a bobbin supporting device that can easily cope with bobbins having different shapes.

[0010]

Means for Solving the Problem The problem solving means according to the present invention is a bobbin holder 45 having one end fixed to rotating shafts 41 and 42 and the other end fitted in a central hole 44 of a bobbin 40, and the bobbin holding member 45. An attachment holder 46 having one end removably attached to a mounting hole 50 formed at the other end of the body 45, and the other end of the attachment holder 46 has a smaller diameter than the bobbin holder 45. 62 is fitted to the outer surface of the attached holding body 46, and an elastic body 77 having a force in a direction away from the outer surface is attached to the attachment hole 50. 0a is formed.

Further, a concave portion 52 is formed on either the bobbin holding body 45 or the auxiliary holding body 46, and a convex portion 71 is formed on the other side of the bobbin holding body 45 or the auxiliary holding body 46. The rotation of the rotary shafts 41 and 42 is transmitted to the auxiliary holder 46 by the engagement of the convex portion 71 with the convex portion 71.

[0012]

[Action]

 In the above problem solving means, the elastic body 77 is pressed toward the outer surface of the accessory holder 46 to insert the accessory holder 46 into the mounting hole 50. The elastic body 77 returns to the state of being separated from the outer surface of the auxiliary holding body 46 by the elastic force and engages with the engaging portion 50a. Then, the convex portion 71 and the concave portion 52 are engaged with each other. As a result, the rotation of the rotating shaft 41 can be transmitted to the accessory holder 46, and the accessory holder 46 cannot be removed from the bobbin holder 45. Then, the central hole 64 of the bobbin 62 having a small hole diameter is fitted into the accessory holder 46.

On the other hand, the elastic body 77 is pushed to release the engagement with the engagement portion 50 a, and the attached holder 46 is pulled out from the attachment hole 50. Then, the central hole 44 of the bobbin 40 having a large hole diameter is fitted to the bobbin holding body 45. In this way, the accessory holder 46 can be easily attached to and detached from the bobbin holder 45 only by operating the elastic body 77.

[0014]

【Example】

 As shown in FIGS. 1 and 2, a bobbin supporting device according to an embodiment of the present invention mounts a bobbin having a central hole in a flange on a pair of opposed rotary shafts 41 and 42, one end of which is the rotary shaft 41. , 42, and the other ends of which are fitted into the bobbin 40 having a large hole diameter, respectively, and a pair of bobbin holders 45, one end of which is removably attached to mounting holes 50 formed at the other ends of the bobbin holders 45, respectively. The other end has a smaller diameter than the bobbin holding body 45 and a pair of accessory holding bodies 46 that fit into the bobbin 62 having a small hole diameter.

Each bobbin 40, 62 comprises a cylindrical winding portion 40a, 62a and flanges 43, 63 formed at both ends of the winding portion 40a, 62a. Central holes 44 and 64 are formed in the flanges 43 and 63, respectively.

The rotating shafts 41, 42 are rotatably supported by a wire rod winding device body and a wire rod feeding device body in an industrial machine such as a twisting machine, a wire drawing machine, and an extruder (not shown). Further, the rotary shaft 41 on the drive side is driven by a drive motor via a pulley, a belt and the like as in the conventional case. The driven rotation shaft 42 is movable in the axial direction. The rotary shaft flanges 41a, 42a are fixed near the tips of the rotary shafts 41, 42.

As shown in FIGS. 2, 3 and 4, the bobbin holder 45 has an annular shape with a mounting hole 50 formed in the center for fitting with the front ends of the rotary shafts 41 and 42 and one end of the auxiliary holder 46. The bobbin 40 has a flange portion 45a that abuts the flange 43 when fitted in the central hole 44 of the bobbin 40. The other end of the bobbin holder 45 is tapered, and four bolt insertion holes 52 that surround the mounting hole 50 and into which the socket bolt 51 is inserted are formed.

Further, as shown in FIGS. 1 and 2, a long plate-shaped lever 53 is interposed between one end of the bobbin holder 45 on the driving side and the rotary shaft flange 41a. The bobbin holder 45, the lever 53, and the rotary shaft flange 41a are integrally fixed by the socket bolt 51. Further, a kelly 54 as shown in FIG. 5 is attached to the end of the lever 53. The flange 43 of the bobbin 40 is formed with an insertion portion 43a into which the kelly 54 is inserted.

The kelly 54 includes a bolt portion 54 a attached to the lever 53 and an insertion portion 54 b corresponding to the insertion portion 43 a of the bobbin 40. A nut 54 c for fixing the bolt portion 54 a to the lever 53 is provided. I have it.

As shown in FIGS. 1, 6, 7 and 8, one end of the auxiliary holding body 46 is a mounting portion 60 having a diameter substantially equal to the diameter of the mounting hole 50 of the bobbin holding body 45, and the other end. Is a bobbin supporting portion 61 having a smaller diameter than the mounting portion 60. The bobbin supporting portion 61 has a tapered tip end and can be fitted into the central hole 64 of the bobbin 62 having a small hole diameter.

Further, a pair of groove portions 75 for attaching a leaf spring, which will be described later, are axially formed on the outer periphery of the mounting portion 60 of the accessory holding body 46. The stopper 70 is integrally molded. The stopper 70 has a bolt mounting hole 72 for mounting the socket bolt 71. The socket bolt 71 as a convex portion attached to the bolt attaching hole 72 is inserted into the bolt insertion hole 52 as a concave portion of the bobbin holding body 45 when the accessory holding body 46 is attached to the bobbin holding body 45. The rotation of the rotary shaft 41 is transmitted to the auxiliary holder 46 by the insertion of the protrusions 71 and the recesses 52.

A long plate 90 is attached to the auxiliary holder 46 on the drive side, and a kelly 91 having a diameter smaller than that of the kelly 54 is attached to a kelly attachment hole 90a formed at the tip of the long plate 90. ing. The kelly 91 is inserted into an insertion portion 63a formed on the flange 63 of the bobbin 62. Further, no long plate is attached to the auxiliary holder 46 on the driven side, as shown in FIG.

The groove portion 75 is shallower toward the bobbin supporting portion 61, and a pair of bolt mounting holes 76 are formed on the other end side of the groove portion 75. A pair of elastic bodies, which are strip-shaped leaf springs 77, are arranged in each groove 75.

As shown in FIGS. 10 and 11, a pair of bolt through holes 78 corresponding to the bolt mounting holes 76 are formed in one side of the leaf spring 77, and a pushing projection 80 is provided in the center. It is bent, and an engaging claw 81 is formed on the other side. The leaf spring 77 is cantilevered in a horizontal state on the auxiliary holder 46 by a bolt 79 attached to the bolt mounting hole 76. Further, the mounting hole 50 is formed with an engaging portion 50a having a diameter larger than the hole diameter and engaging with the engaging claw 81.

In the above structure, when using the bobbin 62 having a small hole diameter, first, the auxiliary holding body 46 is attached to each bobbin holding body 45. When the attachment holder 60 is inserted into the attachment hole 50 of the bobbin holder 45 when the attachment holder 46 is attached, the engaging claw 81 of the leaf spring 77 abuts the wall surface of the attachment hole 50, and the leaf spring 77 is elastic. It is pushed into the bending groove portion 75 against the force. When the stopper 70 of the accessory holder 46 contacts the bobbin holder 45, the socket bolt 71 is inserted into the bolt insertion hole 52, the leaf spring 77 returns to the horizontal state, and the engaging claw 81 engages. It engages the part 50a. As a result, the attachment of the accessory holder 46 to the bobbin holder 45 is completed.

Next, the center holes 64 of the bobbins 62 are fitted into the bobbin supporting portions 61 of the accessory holders 46 on both sides, and the kelly 91 and the insertion portion 63a of the bobbin 62 are aligned, while the accessory parts of the driven side are attached. The holding body 46 is brought close to the bobbin 62 so that the bobbin 62 shown in FIG. 1 is held. As a result, the rotation of the motor is transmitted to the bobbin 62 via the rotary shaft 41 on the drive side, the bobbin holding body 45 and the auxiliary holding body 46.

On the other hand, when replacing the bobbin 62 having a small hole diameter with the bobbin 40 having a large hole diameter, the bobbin 62 is removed from the accessory holding body 46, and the accessory holding body 46 is removed from each bobbin holding body 45. First, the pushing convex portion 80 of the leaf spring 77 is pushed to push the leaf spring 77 into the groove portion 75, and the engagement of the engaging claw 81 is released. Then, the auxiliary holder 46 is pulled out from the mounting hole 50 while the pushing convex portion 80 is being pushed. After that, the center holes 44 of the bobbins 40 are fitted into the bobbin holders 45 on both sides, and the kelly 54 is inserted into the insertion portion 43a of the bobbin 40 to hold the bobbins 40 shown in FIG.

As described above, the elastic force of the leaf spring 77 can be used to easily attach / detach the accessory holder 46 to / from the bobbin holder 45. Therefore, it is easy to use the bobbin holder 45 and the accessory holder 46 properly. You can do it. Therefore, it is possible to immediately cope with the use of bobbins having different shapes.

Further, by using a plurality of types of attached holding bodies 46 having different positions or diameters of the knives 54 and 91, it is possible to flexibly cope with a plurality of types of bobbins having different shapes at low cost.

Further, the bolt insertion hole 52 of the bobbin holding body 45 is a concave portion, and the socket bolt 71 attached to the auxiliary holding body 46 is a convex portion. By simply engaging the convex portion and the concave portion, the auxiliary holding The rotation of the rotary shaft 41 can be reliably transmitted from the bobbin holding body 45 to the auxiliary holding body 46 without causing any trouble in attaching and detaching the body 46.

It should be noted that the present invention is not limited to the above embodiment, and it goes without saying that many modifications and changes can be made to the above embodiment within the scope of the present invention. For example, even if a convex portion is formed on the bobbin holding body 45 and a concave portion is formed on the auxiliary holding body 46, and the rotation of the rotary shaft 41 is transmitted to the bobbin holding body 45 and the auxiliary holding body 46 by the engagement of the convex portion and the concave portion. Good. As an elastic body, as shown in FIG. 12, a ball 101 movably arranged in the groove 100 of the auxiliary holder 46, and a spring 102 arranged in the groove 100 for urging the ball 101 outwardly. May be provided, and a fitting groove 103 for fitting with the ball 101 may be formed on the wall surface of the mounting hole 50.

[0032]

[Effect of device]

 As is clear from the above description, according to claim 1 of the present invention, the bobbin holder and the accessory holder are provided, and the accessory holder can be easily attached to and detached from the bobbin holder only by operating the elastic body. You can easily use the body and the attached holder separately. As a result, it is possible to immediately cope with the use of bobbins having different shapes.

According to the second aspect of the present invention, the rotation of the rotary shaft can be transmitted from the bobbin holder to the accessory holder by the simple engagement between the convex portion and the concave portion without hindering attachment / detachment of the accessory holder. It has an excellent effect.

[Brief description of drawings]

FIG. 1 is a sectional view of a bobbin supporting device when holding a bobbin having a small hole diameter according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a bobbin supporting device when holding a bobbin having a large hole diameter.

FIG. 3 is a sectional view of a bobbin holder.

FIG. 4 is a side view of the bobbin holder.

FIG. 5A is a front view of the kelly, and FIG. 5B is a side view of the kelly.

FIG. 6 is a front view of an accessory holder on the driving side.

FIG. 7 is a plan view of an auxiliary holder on the driving side.

FIG. 8 is a side view of an auxiliary holder on the driving side.

FIG. 9 is a side view of the auxiliary holder on the driven side.

FIG. 10 is a front view of a leaf spring.

FIG. 11 is a plan view of a leaf spring.

FIG. 12 is a cross-sectional view showing an elastic body of another embodiment.

FIG. 13 is a sectional view of a conventional bobbin supporting device.

FIG. 14 is a sectional view of another conventional pintle.

FIG. 15 is a side view of the pintle.

FIG. 16 is a sectional view of another conventional bobbin supporting device.

[Explanation of symbols]

 40 large hole bobbin 41 drive side rotary shaft 42 driven side rotary shaft 43 flange 44 center hole 45 bobbin holder 46 accessory holder 50 mounting hole 50a engaging part 52 recess 62 small hole bobbin 63 flange 64 center hole 71 convex part 77 elasticity body

Claims (2)

[Scope of utility model registration request] 1. A bobbin having a central hole in a flange mounted on a rotary shaft, wherein one end is fixed to the rotary shaft and the other end is fitted in the central hole of the bobbin, and the bobbin. An attachment holder, one end of which is detachably attached to a mounting hole formed at the other end of the holder, is attached to the bobbin with the other end of the attachment holder having a smaller diameter than the bobbin holder. A bobbin, wherein an elastic body having a force in a direction away from the outer surface is attached to an outer surface of the attached holding body, and an engaging portion that engages with the elastic body is formed in the mounting hole. Support device. 2. A recess is formed in either the bobbin holder or the accessory holder, and a protrusion is formed in the other of the bobbin holder or the accessory holder, and the recess and the protrusion are engaged with each other. The bobbin supporting device according to claim 1, wherein the rotation of the rotating shaft is transmitted to the auxiliary holder.