JPH0411466B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a tube winding drum for winding a tube such as a flexible electric conduit tube made of resin into predetermined lengths.

(Prior Art) The present inventor has proposed an automatic tube winding and tying machine that winds tubes such as flexible electrical conduits made of resin into predetermined lengths. As shown in FIGS. 3 and 4, this automatic winding and binding machine consists of a traverse device 1 that sequentially changes the supply position of tubes to the winding drums 2, two winding drums 2, and two winding drums 2. A switching device 3 that switches the position of the winding drum 2 between the winding position and the bundling position.
, a tube cutting device 4 that cuts the tube between the winding position and the bundling position, a tube holding device 5 that presses down the tube wound on the winding drum 2 at the bundling position, and a tube cutting device 4 that cuts the tube between the winding position and the bundling position; It is equipped with a binding device 6 that ties together the tubes wound on the winding drum 2 in conjunction with the winding drum 2 that rotates. The winding drum 2 is replaced with the winding drum 2, the pipes are cut and bundled, and the replaced winding drum 2 is started to wind and bundle the next pipe.
This allows for continuous winding and bundling of tubes.

Next, the operating state of this automatic winding and binding machine will be explained. First, one end of the electric conduit P sent out from an extruder (not shown) is passed between the rotating rolls 11 and 12 of the traverse device 1 and fixed at the winding start position of the winding drum 2 at the winding position. Conduit P
When one end of the winding drum 2 is fixed at the winding start position of the winding drum 2, winding is started. The electrical conduit P is wound to a uniform height by a traverse device 1 that sequentially changes the supply position of the electrical conduit P to the winding drum 2, and is also wound by a fixed amount based on a set winding amount.

After winding the conduit P, the rotation of the winding drum 2 is stopped and the shunting device 3 is activated, and the arm 31
The notches 32 for fixing the winding drum 2 are removed, and the winding drums 2 at both ends of the arm 31 are reversed around the rotating shaft 33 of the arm 31.

The winding drum 2 that winds up the conduit P is connected to the arm 3
Move to the bundling position by reversing step 1. Then, the outside of the conduit P is held by the tube holding device 5.
is pressed down to prevent it from loosening. Further, the tube cutting device 4 is activated, and the electric conduit P is cut into the winding drum 2.
At the same time, the winding end is cut off.

The electric conduit P that has been moved to the bundling position and cut by the tube cutting device 4 is bundled at a predetermined position by the bundling device 6. Note that the tube end of the cut electric conduit P is fixed to the winding drum 2 at the winding position, and winding of the next electric conduit P is started.

Next, the bundle of bundled electrical conduits P is removed by an extrusion cylinder 80 provided at the rear of the winding drum 2, and is separately conveyed by a belt conveyor or the like.

(Object of the Invention) The present invention seeks to provide a winding drum for winding such a tube. Specifically, one end of the tube is securely locked so that the tube does not loosen or come off during winding, and after winding, the locking of one end of the tube is simultaneously released by the movement of the collapsible side plate. The object of the present invention is to provide a winding drum that can continuously and smoothly perform a series of operations from locking one end of the tubes to removing the tube bundle.

(Structure of the Invention) In other words, the pipe winding drum according to the present invention has a winding drum equipped with a winding shaft and both side plates, in which a tube bundle wound around the winding shaft is removed along the winding shaft. One of the side plates forms a collapsible side plate that moves to reduce its diameter in the direction of removing the tube bundle, and the winding shaft end of the collapsible side plate is opened in the circumferential direction and toward the collapsible side plate and has a tube to be wound. A groove is formed into which one end is inserted, and the one end of the tube inserted into the groove is locked so that it does not escape in the open circumferential direction and in the winding direction, and the tube is wound around the winding shaft. After winding, when the tube bundle is removed from the winding shaft by the diameter-reducing movement of the collapsible side plate, the lock is released and one end of the tube is locked from inside the groove. The feature is that the locking means is detachable, and with this configuration, the locking means prevents one end of the tube in the groove from escaping in the open circumferential direction and in the winding direction. By securely locking one end and continuing to lock one end of the tube while the tube is being wound around the winding shaft, the tube will not loosen or come off during winding, and the tube will not come loose after winding. In this case, one end of the tube is simultaneously released by the diameter-reducing movement of the collapsible side plate, so that the tube bundle can be continuously and smoothly removed from the winding shaft.

(Example) Hereinafter, the present invention will be explained in detail according to an example shown in the drawings. As shown in FIG. 1, the winding drum 20 according to the present invention includes a winding shaft 22 and side plates 2.
3 and 23a, thereby forming a storage section 21 for storing the wound electric conduit P. Of these, the side plate 23a (hereinafter referred to as the collapsible side plate 23a) located in the removal direction of the electric conduit P wound on the winding drum 2 has a cylinder 24 and a link mechanism 27 as moving means, and when the cylinder 24 operates, the It is designed to fall down in the direction in which the conduit P is removed via a mechanism 27. Further, the winding shaft 22 is provided with a groove 25 adjacent to the collapsible side plate 23a, one end of which is inserted into the electric conduit P.

This groove 25 is preferably formed to a depth that matches the diameter of the electric conduit P. Groove 2 like this
5, it is possible to wind up the electric conduit P with a uniform height. Furthermore, when winding up the electric conduit P, it is only necessary to hold one end of the electric conduit P into the groove 25, making the winding operation easier. Further, on the outside of the retractable side plate 23a, in this embodiment, in order to fix one end of the electric conduit P inserted into the groove 25 as a locking means, it is inserted into and taken out from the opening 26 of the retractable side plate 23a. A chuck device 7 is attached, which is a fixing portion that includes a claw portion 71 that presses down the electric conduit P housed in the groove 25 and presses one end of the electric conduit P into the groove 25.

As shown in FIG. 2, the chuck device 7 has a cylinder 72 which is a driving part, its cylinder rod 73, and a claw part 71, and a connecting arm 74 rotatably fixed to the tip of the cylinder rod 73 via a shaft. and a fixing member 75 that is fixed to the retractable side plate 23a of the winding drum 20 and rotatably fixes the intermediate portion of the connecting arm 74 via a shaft. The section 71 can be taken in and out of the storage section 21 of the winding drum 20.

Note that the claw portion 71 is moved in and out by rotating it through a shaft, but in addition to this, the cylinder 72
is provided along the winding shaft 22, and a cylinder rod 73 is provided along the winding shaft 22.
A claw portion 71 is provided at the tip of the winding shaft 22, and the claw portion 73 is attached to the winding shaft 22.
It may be configured to be inserted and removed by sliding in the direction of.

Further, as the locking means, in addition to the chuck device 7 which is a fixing part that presses the electric conduit P inserted into the groove 25, it may also be constituted by a groove side wall into which one end of the electric conduit P can be fitted and fixed. . That is, the locking means may be configured such that one end of the electric conduit P is held between both side walls of the groove 25 and fixed so that it does not come off.

Further, in the present invention, the means for moving the collapsible side plate 23a is not limited to that of the above-described embodiment using the cylinder 24 and the link mechanism 27, but a motor or the like may be used as the moving means.

Next, the operating state of this winding drum 20 will be explained using the automatic winding and binding machine shown in FIGS. 3 and 4 as an example. First, the electric conduit P is moved from an extruder (not shown) to the rotating roll 11 of the traverse device 1,
12 and is sent out to the groove 25 of the storage section 21 of the winding drum 20. At this time, the chuck device 7
As shown by the dotted line in FIG. 2, the cylinder rod 73 pushes down the connecting arm 74. At this time, the claw portion 71 is configured not to protrude beyond the surface of the collapsible side plate 23a. In this state, the conduit P is in groove 2.
5, the cylinder rod 73 pulls up the connecting arm 74, and the claw portion 71 presses down the electric conduit P housed in the groove 25 from above. As a result, the electric conduit P is securely fixed within the groove 25 of the winding drum 20.

When the conduit P is fixed, winding starts,
During this time, the chuck device 7 continues to lock the conduit P.

After winding the conduit P, the rotation of the winding drum 20 is stopped and the shunting device 3 is activated, and the arm 3
1 is removed, and the winding drums 20 at both ends of the arm 31 are reversed around the rotating shaft 33 of the arm 31.

The winding drum 20 that has wound the electric conduit P moves to the binding position by reversing the arm 31. Then, the outside of the conduit P is held down by a tube holding device 5 so that the conduit P does not loosen. Further, the tube cutting device 4 is activated, and the electric conduit P moves to the winding start position of the winding drum 20, and the winding end is cut. In this case, the groove 25 into which one end of the electric conduit P is inserted becomes the winding start position. A chuck device 7 having the same structure is also provided on the winding drum 20 that has moved to the winding position, and fixes the electric conduit P that moves to the winding start position during this pipe cutting operation, and stops the winding operation. Start. The electric conduit P moved to the bundling position and cut by the tube cutting device 4 is
The binding device 6 bundles the pieces at a predetermined position.

Next, the collapsible side plate 23a of the winding drum 20 is tilted in the direction in which the tube bundle is removed via the link mechanism 27 due to the operation of the cylinder 24. Foldable side plate 23a
At the same time as the tube falls down, the claw portion 71 of the chuck device 7 comes off in the direction of removing the tube bundle. This releases the fixation of one end of the conduit P. When one end of the electric conduit P is released, the bundle of bundled electric conduit P is pushed out to the front by a pushing cylinder 80 provided at the rear of the winding drum 20.

The tube bundle pushed out in this state is conveyed separately by a belt conveyor or the like, and the winding operation of the electric conduit P is repeated continuously and automatically.

(Effects of the Invention) As described above, according to the pipe winding drum according to the present invention, one end of the pipe inserted into the groove is locked to prevent it from escaping in the open circumferential direction and in the winding direction. , continues to lock one end of the tube while the tube is being wound on the winding shaft, and after winding, locks the tube bundle when it is removed from the winding shaft by the diameter reduction movement of the collapsible side plate. Since the locking means is provided so that one end of the tube can be released from the groove and removed from the groove, the locking means can escape in the circumferential direction and the winding direction when the one end of the tube in the groove is opened during winding. By pressing down to securely lock one end of the tube, and continuing to lock one end of the tube while the tube is being wound around the winding shaft, the tube will not loosen or come off during winding. After winding, one end of the tube is simultaneously released by the diameter-reducing movement of the retractable side plate, allowing the series of operations from locking one end of the tube to removing the tube bundle to be performed continuously and smoothly. can.

Therefore, if the present invention is used in an automatic tube winding and binding machine that winds tubes such as flexible resin conduit tubes into predetermined lengths, the productivity of tube bundles can be further improved.

Furthermore, one end of the inside of the tube bundle wound by such a winding drum is inserted into the groove of the winding drum and wound, so it protrudes into the space inside the tube bundle, making it difficult to unravel the tube bundle. This has the effect of making it easier to remove.

[Brief explanation of drawings]

Fig. 1 is a side view showing an embodiment of the winding drum according to the present invention, Fig. 2 is an enlarged view of the chuck device shown in Fig. 1, Fig. 3 is a side view of an automatic winding and binding machine, and Fig. 4. is a plan view of FIG. 3; Explanation of symbols, 1... Traverse device, 11...
Rotating roll, 12... Rotating roll, 20... Winding drum, 21... Storage section, 22... Winding shaft, 23
... side plate, 23a ... collapsible side plate, 24 ... cylinder, 25 ... groove, 26 ... opening, 27 ... link mechanism, 3 ... shunting device, 31 ... arm, 32
... Knot, 33 ... Rotating shaft, 4 ... Pipe cutting device, 5 ... Pipe holding device, 6 ... Binding device, 7 ...
chuck device, 71... claw portion, 72... cylinder, 73... cylinder rod, 74... connecting arm, 75... fixing member, 80... extrusion cylinder, P... electric conduit.

Claims (1)

[Claims] 1. In a winding drum equipped with a winding shaft and both side plates, one side plate can be moved to reduce its diameter in the direction in which the tube bundle is removed so that the tube bundle wound around the winding shaft is removed along the winding shaft. Along with forming the obverse plate,
At the end of the winding shaft on the side of the retractable side plate, a groove is formed which is open toward the circumferential direction and toward the retractable side plate and into which one end of the tube to be wound is inserted, and one end of the tube inserted into the groove is opened. In addition to locking the tube to prevent it from escaping in the circumferential direction and winding direction, it also keeps locking one end of the tube while the tube is being wound around the winding shaft. 1. A winding drum for a tube, characterized in that it is provided with a locking means that releases the lock when the tube is removed from the winding shaft by movement, and allows one end of the tube to come out from within the groove.