JP3910091B2 - Interlayer material insertion device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an interlayer material insertion device that is inserted when winding an optical fiber cable spacer.
[0002]
[Prior art]
Conventionally, an optical fiber cable spacer mainly formed of polyethylene (PE) is subjected to a winding process in which it is wound on a bobbin composed of a cylindrical winding body and flanges fixed to both ends after extrusion. Supplied to optical fiber cable manufacturing process. In the production of optical fibers, the optical fibers are respectively housed in the plurality of grooves of the spacer in the assembly process.
[0003]
In the above-described bobbin winding process, if the spacers cross each other, ribs are likely to be deformed. The rib deformation causes an abnormal assembly in the optical fiber assembling process or a decrease in the optical transmission performance of the final optical fiber cable. Therefore, a winding method in which adjacent spacers do not intersect, so-called aligned winding is recommended.
[0004]
Recently, in order to reduce the price and laying cost of optical fiber cables, studies have been made on reducing the cable diameter, reducing the weight, and increasing the optical (fiber) density. The demand for smaller diameters has become stricter.
[0005]
On the other hand, in recent aerial optical fiber cables, in addition to increasing the optical density, branching performance in the middle of the optical fiber has begun to be required. An SZ type optical fiber cable using a spacer and storing a plurality of tape-like optical fibers in each groove has been widely used.
[0006]
As the spacer diameter decreases in this way, the dimensions of the optical fiber storage groove do not change, so the thickness of the rib that defines the storage groove decreases, and as a result, in the adjacent spacer, the rib becomes the groove of the adjacent spacer. The so-called meshing is likely to occur.
[0007]
Further, in the case of SZ type spacers, such a meshing is likely to occur at a so-called reversal part where the twisting direction of the groove changes, and the tendency becomes more remarkable as the diameter is reduced.
[0008]
Here, with regard to the problem of meshing with the lower layer spacer, conventionally, an interlayer material such as a kraft paper having a thickness of about 0.1 mm or a cardboard having a cushioning property having a thickness of about 1.1 to 1.3 mm is conventionally wound. It was solved by inserting it between the layers.
[0009]
However, such a conventional method for inserting an interlayer material has the following problems.
[0010]
[Problems to be solved by the invention]
That is, in the conventional method of inserting an interlayer material, if a gap of 1/2 or more of the diameter of the spacer to be wound occurs between the final winding of each layer and the flange portion of the bobbin, it is not possible to ride up to the upper layer side, It falls and leads to the occurrence of meshing.
[0011]
Therefore, paying attention to the winding failure or drop from about 5 turns before the final winding, if there are defects etc., the winding was corrected and the interlayer material was manually inserted when the final winding was taken up. There was a problem that it took time and labor.
[0012]
On the other hand, a method has been proposed in which a tape-like material is wound around the spacer itself to prevent the engagement of the grooves. However, this method increases the number of processes and decreases the production efficiency due to the installation of a tape-like material detachment facility. However, the cost also increases greatly.
[0013]
The present invention has been made in view of such conventional problems. The object of the present invention is to automatically and semi-automatically insert an interlayer material, thereby reducing costs and manpower. An object of the present invention is to provide an insertion device and an insertion method for an interlayer member inserted when winding an optical fiber cable spacer.
[0014]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a sheet such as a kraft paper or a corrugated cardboard sheet when an optical fiber cable spacer is wound around the outer periphery of a rotationally driven bobbin in a multilayer shape via a traverse mechanism. In the interlayer material inserting device for inserting the interlayer material between the upper and lower layers of the spacer to be wound, the traverse mechanism is configured to suck and hold the end portion of the interlayer material fed from the stock portion of the sheet-shaped interlayer material Before the spacer guided by the step moves onto the lower wound spacer on the lower layer side, the interlayer material is pressed against the already wound spacer and rotated together with the bobbin so that the spacer is moved to the lower wound side spacer. Immediately before riding on the winding spacer, an interlayer material winding mechanism for inserting an end portion of the interlayer material between them, and the interlayer material winding After releasing the state where the mechanism presses the interlayer material against the pre-wound spacer, as the bobbin rotates, the interlayer material rolled up on the pre-wound spacer is turned up from above. A winding auxiliary mechanism to be regulated was provided.
[0015]
According to the interlayer material insertion device configured as described above, the interlayer material can be automatically or semi-automatically inserted, and cost and manpower can be reduced.
[0016]
The stock portion includes a plurality of cylindrical holders for storing the interlayer material cut to a predetermined length, and projects one end side of the interlayer material stored in the holder from a slit of the holder. Further, the protruding end portions of the respective interlayer materials can be aligned and laminated.
[0017]
The stock portion includes an end portion of the interlayer material wound in a roll shape, a feed portion that feeds the end portion of the interlayer material to the interlayer material winding mechanism side, and a length of the interlayer material when the interlayer material is fed a predetermined length. And a cut portion for cutting the interlayer material at a portion.
[0018]
The stock portion may include an ear cutter portion that forms a slit at an end portion in the width direction of the interlayer material fed out by the feeding portion.
[0019]
The stock portion may have a stock space for the interlayer material delivered by the delivery.
[0020]
The interlayer material winding mechanism includes a freely movable front / rear interlayer material adsorbing / holding portion that sucks and holds an end portion of the interlayer material, and a position that can be moved back and forth by contacting the already-wound spacer and detecting its position. A detection roller, a pressure roller that can be moved back and forth to press the end of the interlayer material against the pre-wound spacer, and an end of the interlayer material that is held by the interlayer material adsorbing and holding portion toward the pressure roller An air nozzle that ejects energizing air, a support member that supports the interlayer material adsorption holding unit, the position detection and pressing roller, a swivel moving unit of the support member, the air nozzle, the support member, and the swivel member A moving part is mounted, and these can be constituted by a carriage that moves close to or away from the bobbin.
[0021]
The winding assist mechanism includes a plastic chain mounted on the carriage and a feeding portion thereof, and the plastic chain is a plate-like link connected in a bending direction restricted to one direction, It can be configured to bend along the outer periphery of the pre-wound spacer when it is drawn out to the bobbin side by the portion.
[0022]
The winding auxiliary mechanism may have a swinging portion that makes a feeding angle of the plastic chain variable.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings. 1 to 3 show a first embodiment of an interlayer material inserting device according to the present invention. The insertion device shown in these drawings is used when the optical fiber cable spacer 12 is wound around the outer periphery of the rotationally driven bobbin 10 in multiple layers via the traverse mechanism 14.
[0024]
The bobbin 10 includes a cylindrical winding drum portion 10a and a pair of flanges 10b provided at both ends of the winding drum portion 10a, and is supported so that the winding drum portion 10a is substantially horizontal. The spacer 12 is aligned and wound in a multilayered manner on the outer periphery of the winding body portion 10a.
[0025]
At this time, sheet-like interlayer materials 16 such as kraft paper and cardboard-like sheets are interposed between the upper and lower layers of the spacer 12 to be wound. The traverse mechanism 14 is, for example, substantially the same as the configuration disclosed in Japanese Patent Application No. 2000-72035 according to the applicant's proposal, and includes a traverse guide 14a of the spacer 12 on the tip side. .
[0026]
The traverse guide 14a is configured to move along the axial direction of the bobbin 10 supported substantially horizontally, and to be movable in the vertical direction with respect to the bobbin 10. From the tip of the traverse guide 14a, The spacer 12 is wound around the winding body portion 10a of the bobbin 10 located immediately below.
[0027]
The interlayer material insertion device according to the present embodiment includes a stock portion 18 of the interlayer material 16, a winding mechanism 20 for the interlayer material 16, a winding assist mechanism 26, and a control unit 28. As shown in detail in FIG. 3, the stock unit 18 includes a plurality of cylindrical holders 18 a that hold the interlayer material 16 cut into a predetermined length.
[0028]
A flange 18b is fixed to one end side of the cylindrical holder 18a, and the interlayer material 16 on the sheet is fitted into the outer periphery of the cylindrical holder 18a in a state of being partially wound into a φ65 mm hollow body. A stopper 18d, which can be attached and detached at the opposite end, is set in a rotatable state fitted in the cylindrical holder 18a.
[0029]
The sheet-like interlayer material 16 is, for example, a sheet-like material such as kraft paper or cardboard-like sheet, has substantially the same width as the winding body portion 10a of the bobbin 10, and the length is adjusted according to the layer to be wound. ing.
[0030]
That is, the sheet-like interlayer material 16 basically has a length that substantially covers the entire circumference of one layer of the spacer 12 wound around the winding body portion 10a of the bobbin 10, but the spacers 12 are sequentially layered. When wound, the diameter increases with the upper layer, and the length covering the outer circumference differs, so the length is adjusted accordingly.
[0031]
The stock section 18 includes a support base 18c and a stopper 18d fixed to one end of the support base 18c so that the surfaces are orthogonal to each other. A plurality of holders 18a are placed on the support base 18c, and the end surface portions of the interlayer material 16 protruding from the holders 18a are aligned by being brought into contact with the stopper 18d and stacked.
[0032]
The stock unit 18, the winding mechanism 20, and the winding auxiliary mechanism 26 are all mounted on the movable carriage 20g, and the whole is moved by the cylinder 20h. The winding mechanism 20 and the winding auxiliary mechanism 26 are mounted on the moving table 20f, and can be moved independently from the moving carriage 20g by driving the moving table motor 35a. When the interlayer material 16 of the holder 18a is used up, the stock unit 18, the winding mechanism 20, and the entire winding auxiliary mechanism 26 are moved backward, and then the moving base 20f is moved forward to wind the spacer 12. Insertion work can be performed at a position where it does not interfere.
[0033]
As shown in an enlarged view in FIG. 4, the winding mechanism 20 includes an adsorption holding portion 20a for the interlayer material 16, a position detection roller 20b, a pressing roller 20c, an air nozzle 20d, a support 20e, and a support 20e. The turning movement part 20f and the moving carriage 20h are provided.
[0034]
The suction holding unit 20a includes a hollow rectangular pipe 200a that is 85 mm shorter than the width of the interlayer material 16, and a plurality of suction through holes are provided on one side surface of the rectangular pipe 200a. By sucking the air in the square pipe 200a, the end of one interlayer material 16 stacked on the support base 18c is adsorbed and held.
[0035]
In this case, the suction position of the interlayer material 16 by the square pipe 200a of the suction holding part 20a is a position shifted inward by about 75 mm from the end of the interlayer material 16. The square pipe 200a is attached to the expansion / contraction end of the cylinder 201a, and is moved back and forth by the operation of the cylinder 201a.
[0036]
As will be described later, the position detection roller 20b comes into contact with the already-wound spacer 12 ′ of the bobbin 10 to detect its position, and rotates the roller main body 200b provided at the tip and the roller main body 200b. A cylinder 201b that freely supports and moves the roller body 200b back and forth is provided.
[0037]
The pressing roller 20c presses the end of the interlayer material 16 against the pre-wound spacer 12 ′, and supports the roller body 200c provided at the tip, the roller body 200c rotatably, and the roller body. A cylinder 201c for moving the cylinder 200c back and forth.
[0038]
The air nozzle 20d ejects air that urges the end of the interlayer material 16 held by the suction holding portion 20a toward the pressing roller 20c, and slides in the front-rear direction on the side of the support base 18c. It is supported by a moving carriage 20h that moves.
[0039]
The support body 20e supports the suction holding section 20a, the pressing roller 20c, and the position detection roller 20b arranged in a line in this order, and the support body 20e is swung by the expansion and contraction operation of the swivel moving section 20f. Moved.
[0040]
The movable carriage 20h includes an adsorption holding part 20a for the interlayer material 16, a position detection roller 20b, a pressing roller 20c, an air nozzle 20d, a support 20e, and a turning movement part 20f for the support 20e. Then, move them close or apart.
[0041]
The winding auxiliary mechanism 26 includes a plastic chain 26a mounted on the movable carriage 20h, a feeding portion 26b thereof, and a guide portion 26c of the plastic chain 26a.
[0042]
As shown in FIG. 5, the plastic chain 26a is formed by arranging a pair of plate-like links 260a whose bending directions are restricted in one direction in parallel, and connecting them by providing a connecting rod 261a on the tip side. The interval between the links 260a is smaller than the interval between the flanges 10b of the bobbin 10.
[0043]
The plastic chain 26a is configured to be guided along the outer periphery of the already-wound spacer 12 ′ by being guided by the guide portion 26c when the plastic chain 26a is fed to the bobbin 10 side by the feeding portion 26b.
[0044]
The feeding portion 26b includes a sprocket wheel 260b that meshes with the plastic chain 26a, and a brake motor 261b that rotationally drives the sprocket wheel 260b.
[0045]
As shown in FIG. 6, the control unit 28 includes a sequence control unit 29 and an operation unit 30, and the operation unit 30 includes an operation input unit 30a and an operation output unit 30b. Operation switches 31 and sensors 32 of each cylinder are connected to the operation input unit 30a.
[0046]
Solenoid valves 33, indicator lights 34, motors 35, and an inverter 36 are connected to the operation output unit 30b, and a feeding motor 261b of a plastic chain 26a is connected to the inverter 36.
[0047]
On the other hand, the sequence control unit 29 is supplied with a preparation signal a and a winding start signal b. The preparation signal a is a signal for starting driving of the interlayer material insertion device of the present embodiment, and is input from, for example, the operation switches 31.
[0048]
When the sequence control unit 29 receives the preparation signal a, the spacer 12 is wound around the bobbin 10, the predetermined interlayer material 16 is in the stock unit 18, the winding mechanism 20 or the winding auxiliary mechanism 26. The initial position and the like are confirmed, and the winding mechanism 20 is set at the standby position A.
[0049]
This standby position A is the position A shown by a thin line in FIG. 1 or the position shown in FIG. 7. When moving the winding mechanism 20 to this standby position A, first, the cylinder 201a of the suction holding portion 20a is moved. The uppermost interlayer material 16 placed on the support base 18c of the stock portion 18 is attracted and held by the square pipe 200a, and the cylinder 201a is contracted to return to the original position. .
[0050]
Next, the turning movement part 20f of the support 20e is driven, and the support 20e is turned about 90 ° to be in the state indicated by B in FIG. In this state B, the end portion of the interlayer material 16 adsorbed and held by the square pipe 200a receives air blown from the air nozzle 20d located on the lower side thereof, and the front side of the roller body 200c of the pressing roller 20c. It is urged so that it may contact.
[0051]
Further, in the state B, the square pipe 200a is in the most retracted position with respect to the bobbin 10, and the roller main body 200c of the pressing roller 20c is slightly forward of the square pipe 200a, and is in a position advanced from the tip of the roller main body 200c. The roller body 200b of the position detection roller 20b is located, and the central axis of the bobbin 10 is located between the square pipe 200a and the roller body 200c.
[0052]
In the winding mechanism 20 that is driven by the turning movement unit 20f to turn the support 20e by about 90 ° and is positioned in the state B, the position detection roller 20b is moved forward by the operation of the position detection roller body 201b. . Then, by moving the moving table 20g forward, that is, in a direction closer to the bobbin 10, the position detection roller 20b comes into contact with the spacer 12, and the winding diameter is detected by the sensor 201c of the position detection roller, and the moving table 20g is stopped. The position detection roller 20b rotates while being in contact with the spacer 12. Then, it waits while sucking the interlayer paper at this position.
[0053]
In this standby position A, the position detecting roller 20b and the pressing roller 20c, which are positioned at the foremost side and rotate, the roller body 200c are spaced from the already wound spacer 12 'wound around the bobbin 10 by a predetermined distance L (about 10 to 25 mm). ).
[0054]
Further, when the winding mechanism 20 moves to the standby position A, the winding auxiliary mechanism 26 mounted on the movable table 20g is similarly advanced. When the winding start signal b is input to the sequence control unit 29 in this state, the interlayer material inserting device holds the square pipe 200a of the suction holding unit 20a as shown in FIGS. The inter-layer material 16 is inserted between the first-layer already wound spacer 12 'and the second-layer spacer 12 wound thereabove.
[0055]
The winding timing of the winding start signal b is set in consideration of the position of the spacer 12 wound around the bobbin 10 by the traverse mechanism 14 and the winding speed of the bobbin 10.
[0056]
That is, the interlayer material 16 pushes the roller main body 200c of the pressing roller 20c forward in the vicinity of the standby position A, thereby returning the position detection roller 20b to the original position at the same time as being pressed onto the already wound spacer 12 ′. Thereafter, as the bobbin 10 rotates, it is sequentially wound around the already-wound spacer 12 ', and this position is where the spacer 12 is about to ride on the already-wound spacer 12' (position d shown in FIG. 9). ) Is inserted immediately before that, it is inserted between the already wound spacer 12 'and the spacer 12 to be wound on the upper layer.
[0057]
In order to accurately set the insertion position, the delivery timing is set in consideration of the distance between the winding position of the spacer 12 and the standby position A and the winding speed of the bobbin 10.
[0058]
In this case, since the diameter of the already-wound spacer 12 ′ increases with the progress of winding, the standby position A varies depending on the number of winding layers. It is necessary to set for each number of winding layers.
[0059]
When the sequence control unit 29 receives the winding start signal b, as shown in FIG. 9, the sequence control unit 29 extends the pressing roller 20c and is urged by the air blown from the air nozzle 20d around the outer periphery of the roller body 200c. The interlayer material 16 is pressed against the already wound spacer 12 '.
[0060]
At this time, simultaneously with this pressing operation, the air urging by the air nozzle 20d is stopped, the suction of the suction holding part 20a by the square pipe 200a is also released, and the pressing is performed only by the roller body 200c.
[0061]
When the interlayer material 16 is pressed only by the roller body 200c, the interlayer material 16 is sent out with the rotation of the bobbin 10 while being pressed by the roller body 200c, as indicated by a dotted line in FIG.
[0062]
Then, when the bobbin 10 is rotated by a predetermined angle, for example, about 25 to 30 °, and the leading end of the fed interlayer material 16 reaches the vicinity of the winding auxiliary mechanism 26, the feeding portion 26b of the winding auxiliary mechanism 26 is driven. Then, the plastic chain 26a is drawn out to the bobbin 10 side.
[0063]
The pressing of the interlayer material 16 by the pressing roller 20c is such that when the delivered interlayer material 16 is inserted between the pre-wrapped spacer 12 ′ and the spacer 12, the roller body 200c is retracted to release the pressing. To do.
[0064]
The plastic chain 26a that is fed by driving the feeding portion 26b has a pair of plate-like links 260a whose bending directions are regulated in one direction arranged in parallel, and a connecting rod 261a provided on the tip side for connection. When it is drawn out to the bobbin 10 side by the feeding portion 26b, as shown in FIG. 9, it is curved along the outer periphery of the already wound spacer 12 ', and the upward rolling of the interlayer material 16 is restricted.
[0065]
In this case, for example, as shown in FIG. 10, the feeding amount of the plastic chain 26a may be approximately half the circumference of the winding body portion 10a of the bobbin 10. 16, the detection of the rear end detection photoelectric switch 201d and the reflection mirror 201e returns to the original position by the reverse operation of the feeding portion 26b.
[0066]
When the series of operations described above is completed, the winding mechanism 20 and the winding auxiliary mechanism 26 are returned to the positions shown by the solid lines in FIG. 1, and preparation for inserting the interlayer material 16 into the next layer is started. The above-described operations are sequentially continued.
[0067]
Now, according to the interlayer material insertion device configured as described above, the interlayer material can be automatically inserted, and cost and manpower can be reduced. In the interlayer material insertion device shown in the above embodiment, the case where the interlayer material 16 is automatically inserted in response to the preparation signal a and the winding start signal b is illustrated. For example, the winding start signal b is The operator may visually check the state of the spacer 12 wound around the bobbin 10 and send it artificially at a predetermined timing.
[0068]
11 to 13 show a second embodiment of an interlayer material inserting device according to the present invention. The same or corresponding parts as those in the first embodiment are designated by the same reference numerals and the description thereof is omitted. Only the feature points will be described below.
[0069]
FIG. 11 shows a stock portion 180 of the interlayer material inserting device of the present embodiment, and this stock portion 180 is replaced with the stock portion 18 of the first embodiment, and this stock portion 180 is Similar to the first embodiment, a support base 18c and a stopper 18d fixed to one end of the support base 18c so as to be orthogonal to each other are provided.
[0070]
In addition, the stock unit 180 of the present embodiment includes a delivery unit 181 that feeds the interlayer material 16 to the interlayer material winding 20 side, a cut unit 182, an ear cutter unit 183, a stock space 184, and a gate 185. ing.
[0071]
In the case of the present embodiment, the interlayer material 16 is wound around the winding core 16a in a roll shape and is rotatably installed on the opposite side of the stopper 18d of the support base 18c. The feeding portion 181 is disposed in the vicinity of the interlayer material 16 wound in a roll shape, and a pair of upper and lower rollers 181a and 181b that sandwich the interlayer material 16 up and down, and a motor 181c that rotationally drives the lower roller 181b, An encoder 181d that detects the amount of rotation of the upper roller 181a and measures the feed amount of the interlayer material 16 and a cylinder 181e for lowering the upper roller 181a are provided.
[0072]
When the end portion of the interlayer material 16 is sandwiched between the upper and lower rollers 181a and 181b of the delivery portion 181 and the motor 181c is driven to rotate, the interlayer material 16 is delivered to the interlayer material winding 20 side. Measured by 181d.
[0073]
The cutting portion 182 is disposed in proximity to the upper and lower rollers 181a and 181b of the feeding portion 181. And a rodless cylinder 182d that expands and contracts in the width direction.
[0074]
The cutting blade 182a is a double-edged blade having a thickness of 1.2 mm and a length of 60 mm, and is attached to the rodless cylinder 182d in an inclined state, and is disposed below the interlayer material 16. The holding cylinder 182 c is disposed above the interlayer material 16.
[0075]
When the interlayer member 16 is fed out by a feeding portion 181 for a predetermined length, the cut portion 182 raises the rod cylinder 182d to which the cutting blade 182a is attached by the driving cylinder 182b.
[0076]
After the LS 14 is operated, the cutting blade 182a is advanced in the width direction of the interlayer material 16 by the rodless cylinder 182d, and the interlayer material 16 is cut. In addition, since the predetermined length of the interlayer material 16 differs according to the number of winding layers, a predetermined length is set in advance by calculating a necessary length for each winding layer.
[0077]
Further, when the interlayer material 16 is cut, the pressing cylinder 182c is lowered to a predetermined position. Thereafter, the cutting blade 182a and the rodless cylinder 182d are lowered by the cylinder 182b. Then, the cutting blade 182a is returned to the original position by the rodless cylinder 182d.
[0078]
The ear cutter unit 183 is disposed in the vicinity of the cut unit 182 and includes a slit blade 183a and a drive cylinder 183b. In this ear cutter unit 183, the slit blade 183a is positioned above the support base 18c, and when the cylinder 183b is driven, the slit blade 183a presses the interlayer material 16 against the support base 18c, as shown in FIG. In addition, slits s are formed at both ends in the width direction of the interlayer material 16.
[0079]
In the case of this embodiment, the slits s are formed at both ends of the interlayer material 16 in the width direction, and therefore, in FIG. 11, a pair of ear cutter portions 183 are arranged at a predetermined interval.
[0080]
The slit s has a predetermined width, and a plurality of slits s are formed at one end so as to reach the interlayer material 16 and at a predetermined interval along the longitudinal direction of the interlayer material 16. The interlayer material 16 is provided at the same location at the end in the width direction.
[0081]
When such slits s are provided, it is possible to prevent the winding from being difficult due to the rigidity of the interlayer material 16 itself when the interlayer material 16 is wound.
[0082]
The gate 185 is disposed on the upper side of the support base 18c on the stopper 18d side, and includes a pressing plate 185a and a drive cylinder 185b. When the end portion of the interlayer material 16 delivered by the delivery portion 181 is detected at PH5, the gate 185 moves down the holding plate 185a on the support base 18c by the cylinder 185b while holding the interlayer material 16 therebetween. The interlayer material 16 delivered thereafter is accommodated in the stock space 184 in a zigzag manner.
[0083]
The stock space 184 is separated by an upper plate 184a and an L-shaped plate 184b. 11 is a limit switch that detects a moving stroke of a cylinder or the like, and PH5 and PH6 are photoelectric proximity detectors that detect the front and rear end portions of the interlayer material 16, respectively. It is a sensor.
In this case, as shown in FIG. 10, the feeding amount of the plastic chain 26a may be approximately half the circumference of the winding body portion 10a of the bobbin 10. When the rear end portion of 16 is detected by the proximity sensor PH6, it is returned to its original position by the reverse operation of the feeding portion 26b.
[0084]
The operation of the stock section 180 configured as described above is controlled by the control device 28 in the same manner as in the above embodiment. In this embodiment, as shown in FIG. The cutter drive cylinder 183b and the like receive a control signal from the sequencer control unit 29, and the drive is controlled by a signal sent from the operation output unit 30b, and a cut signal c is input to the sequencer control unit 29. The signal c is sent from the winder side of the spacer 12 for each layer.
[0085]
When the cut signal c is input, a drive signal is sent to the sending part 181 and the interlayer material 16 is sent by a predetermined length. At this time, first, the tip of the interlayer material 16 is sent out at a low speed and stopped so that the position of the tip of the interlayer material 16 is easily determined.
[0086]
Then, after a predetermined time (about 0.5 seconds) after the feeding, the ear cutter unit 183 is driven to form a slit s in the interlayer material 16. The interlayer material 16 is fed while alternately repeating the feeding of the interlayer material 16 and the driving of the ear cutter 183.
[0087]
When the proximity sensor PH5 detects the tip of the interlayer material 16, the gate 185 is driven downward, and the interlayer material 16 is pressed onto the support base 18c by the roller 185b to prevent the interlayer material 16 from being displaced.
[0088]
Thereafter, in order to shorten the operation time, the delivery speed of the delivery unit 181 is increased and stored in the stock space 184. When the feed amount of the feed portion 181 reaches a predetermined amount, the feed is stopped, a drive signal is sent to the cut portion 182 and the interlayer material 16 is cut at that portion.
[0089]
When the cut portion 182 is moved downward to enter the standby state, the preparation for winding the interlayer material 16 is completed. In this state, the suction angle pipe 200a descends, lifts and holds the end of the interlayer material 16 by suction, and after the winding mechanism 20 moves horizontally, the blower air nozzle 40a is used to suck and hold the end of the interlayer. Assist air is blown behind the material 16.
[0090]
In this air blasting, the rear end side of the interlayer material 16 that is sucked and held at the front end side hangs down due to its own weight and enters the flange of the bobbin 10 to be wound early or when the final winding is wound. This is performed in order to prevent the upper and lower spacers from being directly wound around each other.
[0091]
When the stock unit 180 configured as described above is employed, the following effects can be obtained in addition to the operational effects of the above-described embodiment.
[0092]
That is, in the case of the present embodiment, the interlayer material 16 is wound in a roll shape, and is automatically cut to a predetermined length by the cut portion 182. Therefore, a long length corresponding to each layer is used. It is not necessary to set the length, and it is not necessary to mount the cassette on the cassette, so that the work time can be greatly reduced.
[0093]
In this embodiment, the feeding speed of the plastic chain 26a and the winding speed of the spacer 12 are synchronized. The reason is based on the following knowledge. That is, when the feeding speed of the plastic chain 26a becomes slower than the winding speed of the spacer 12, the feeding speed of the interlayer material 16 proceeds at the same speed as the spacer 12 by the pressing roller body 200c, and the speed is slow from above. The plastic chain 26a is pressed by the tip portion.
[0094]
In such a state, the interlayer material 16 fed out later does not follow the winding of the spacer 12, but it is wrinkled and bent or bulged. Also, if the speed is high, the plastic chain 26a comes out from the tip of the interlayer material 16, and the interlayer material 16 cannot be pressed down well, or is in direct contact with the already-wound spacer 12 ', so that the wound is damaged. It becomes defective.
[0095]
Therefore, in this embodiment, as shown in FIG. 12, a winding signal of the spacer 12 (sent from a take-off machine of the manufacturing apparatus of the spacer 12 not shown) 36a is converted into an F / V conversion 36b, a current conversion ( 4 to 20 mA) through the inverter 36 that controls the feeding motor 261b of the plastic chain 26a.
[0096]
By adopting such control of the inverter 36, the feeding speed of the plastic chain 26a and the winding speed of the spacer 12 can be synchronized, and the above-mentioned disadvantages can be avoided.
[0097]
14 and 15 show a third embodiment of the interlayer material inserting device according to the present invention. The same or corresponding parts as those in the above embodiment are designated by the same reference numerals and the description thereof is omitted. Only the characteristic points will be described in detail below.
[0098]
The present embodiment is a modification of the winding assist mechanism 26 of the first embodiment, and is provided with a swinging portion 50 that makes the feeding angle K of the plastic chain 26a shown in the first embodiment variable.
[0099]
The guide portion 26c of the winding assist mechanism 26 includes a rail 260c on which the plastic chain 26a is placed and a cover 261c that covers the rail 260c, and cuts the tip end side of the rail 260c to provide a pin 262c. By connecting with each other, they are coupled so as to be swingable in the vertical direction.
[0100]
On the other hand, the swinging part 50 includes an L-shaped member 50a having one end fixedly provided below the rail 260c and a gear 50b provided on the other end of the L-shaped member. It arrange | positions at a pair of rail 260c arrange | positioned in parallel at predetermined intervals, respectively.
[0101]
The pair of gears 50b are connected by a rod 50c, and a driving gear 50e fixed to the rotation shaft of the drive motor 50d is engaged with one gear 50b.
[0102]
The other gear 50b is coupled with an absolute encoder 50f for detecting the rotation amount of the gear 50b, and the absolute value pulse output is taken in by the cam positioner 50g. If the plaque angle is 20 °, 30 °, or 40 ° by the cam positioner 50g, for example, when the angle is converted into the angle and enters ± 2 ° before and after, control output is made to the operation input unit 30a according to each angle. Thus, the angle of the plastic guide 260c can be adjusted.
[0103]
According to the swing unit 50 configured as described above, when the drive motor 50d is driven to rotate, the rail 260c on the tip side from the pin 262c swings in the vertical direction and is placed on the rail 260c. The feeding angle K of the plastic chain 26a can be adjusted to, for example, 20 °, 30 °, 40 °, or the like.
[0104]
In this case, the cam positioner 50g converts the output of the encoder 50f into an angle, and controls the operation output unit 30a when the output angle K of the plastic chain 26a is within a range of about ± 2 °. A signal is output to control the rotation of the drive motor 50d.
[0105]
14 and 15 is a guide piece for preventing lateral displacement of the plastic chain 26a erected at the tip of the rail 260c.
[0106]
Employing the swinging portion 50 as described above can avoid inconveniences when the feeding angle K of the plastic chain 26a is made constant. That is, when the interlayer member 16 is inserted, the winding of the spacer 12 around the bobbin 10 progresses, and the winding diameter becomes extremely large. When this becomes, for example, about φ1650 mm, the climb angle to the winding diameter becomes large. .
[0107]
At this time, when the feeding angle K of the interlayer material 16 is constant, the angle difference from the winding diameter becomes large, and even if the plastic chain 26a is fed at the angle K, it advances forward along the spacer 12 '. First, it becomes difficult to smoothly insert the interlayer material 16 by forming a mountain on the spacer 12 '.
[0108]
In such a case, such inconvenience can be avoided by changing the feeding angle K of the plastic chain 26a. Note that the above-described inconvenience can be more reliably prevented by sticking an adhesive tape or the like partially on the top surface side of the plastic chain 26a.
[0109]
【The invention's effect】
As described above in detail, according to the interlayer material insertion device of the present invention, the interlayer material can be automatically inserted, and the cost and manpower can be reduced.
[Brief description of the drawings]
FIG. 1 is an overall side view showing a first embodiment of an interlayer material inserting device according to the present invention.
2 is a top view of the interlayer material insertion device of FIG. 1; FIG.
FIG. 3 is a detailed explanatory view of a stock portion of the interlayer material insertion device shown in FIG. 1;
FIG. 4 is an enlarged view of a main part of FIG. 1;
FIG. 5 is an enlarged view of a main part of a winding assist mechanism of the interlayer material insertion device shown in FIG. 1;
6 is a block diagram of a control unit of the interlayer material insertion device shown in FIG. 1;
7 is an explanatory diagram of a state at a standby position A of the winding mechanism of the interlayer material insertion device shown in FIG. 1; FIG.
8 is an explanatory diagram of an initial operation state of a winding mechanism that operates in response to a winding start signal from the standby position A shown in FIG. 6;
9 is an operation explanatory diagram of the winding mechanism performed subsequently from the state shown in FIG. 7;
10 is an operation explanatory view of the winding mechanism performed subsequently from the state shown in FIG. 8. FIG.
FIG. 11 is an explanatory side view of a stock portion showing a second embodiment of an interlayer material inserting device according to the present invention.
12 is a block diagram of a control unit of the stock unit shown in FIG. 11. FIG.
13 is an explanatory diagram of a slit formed by the ear cut part shown in FIG. 11. FIG.
FIG. 14 is a perspective view of a winding auxiliary mechanism showing a third embodiment of the interlayer material inserting device according to the present invention.
15 is a side view of the main part of FIG. 14;
[Explanation of symbols]
10 bobbins
10a winding body
12 Spacer
12 'Pre-wound spacer
14 Traverse mechanism
14a Traverse Guide
16 Interlayer material
18 Stock Department
18a Cylindrical holder
18b Fixed flange 18c support stand
18d Desorption stopper
20 Winding mechanism
20a Adsorption holding part
20b Position detection roller
20c pressure roller
20d air nozzle
20e support
20f Moving cart cylinder
22g moving cart
26 Winding assist mechanism
26a plastic chain
26b Feeding part
28 Control unit
29 Sequence controller
30 Operation unit
30a Operation input section
30b Operation output section
31 Operation switches
32 Sensors
33 Solenoid valve
34 Indicator lights
35 Motors
35a Moving table motor
36 inverter
200a square pipe
200b Roller body
201a square pipe cylinder
201b Position detection roller cylinder
201c Position detection roller sensor
201d Rear end detection photoelectric switch
261b Feeding motor

Claims (8)

When the optical fiber cable spacers are wound around the outer periphery of the rotationally driven bobbin in multiple layers via the traverse mechanism, sheet-like interlayer materials such as kraft paper and cardboard sheets are wound between the upper and lower layers of the spacers In the interlayer material insertion device to be inserted into
Before sucking and holding the end portion of the interlayer material fed from the stock portion of the sheet-shaped interlayer material, and before the spacer guided by the traverse mechanism rides on the pre-wound spacer on the lower layer side, Press the inter-layer material against the pre-wound spacer, rotate it with the bobbin, and insert the end of the inter-layer material between them just before the spacer rides on the pre-wound spacer on the lower layer side An interlayer material winding mechanism to be
After releasing the state in which the interlayer material winding mechanism presses the interlayer material against the pre-wound spacer, the inter-layer material is rolled up on the pre-wound spacer as the bobbin rotates. An interlaminar material insertion device, comprising: a winding auxiliary mechanism that regulates from above. The stock portion includes a plurality of cylindrical holders for storing the interlayer material cut to a predetermined length,
The one end side of the interlayer material stored in the holder is protruded from the slit of the holder, and the end portions of the protruded interlayer materials are aligned and stacked. Interlayer material insertion device. The stock portion includes an end portion of the interlayer material wound in a roll shape, a feed portion that feeds the end portion of the interlayer material toward the interlayer material winding mechanism, and a length of the interlayer material when the interlayer material is fed a predetermined length. The interlayer material insertion device according to claim 1, further comprising a cut portion that cuts the interlayer material at a portion. 4. The interlayer material insertion device according to claim 3, wherein the stock portion has an ear cutter portion that forms a slit at an end portion in the width direction of the interlayer material fed by the feeding portion. 4. The interlayer material insertion device according to claim 3, wherein the stock portion has a stock space for the interlayer material sent out by the feeding. The interlayer material winding mechanism is
An interlayer material adsorbing / holding portion that is freely movable before and after suctioning and holding the end of the interlayer material;
A position detection roller that comes into contact with the already-wound spacer and is movable back and forth to detect its position;
A pressure roller that is movable back and forth to press the end of the interlayer material against the already wound spacer;
An air nozzle that ejects air that urges the end of the interlayer material held by the interlayer material adsorption holding portion toward the pressing roller;
The interlayer material adsorbing and holding unit, a support for supporting the position detection and pressing roller, a swivel moving unit of the support, the air nozzle, the support and the swivel moving unit are mounted on the bobbin. On the other hand, the interlayer material insertion device according to claim 2, further comprising a carriage that moves close to or apart from the carriage. The winding assist mechanism includes a plastic chain mounted on the carriage, and a feeding portion thereof.
The plastic chain is formed by connecting plate-like links whose bending direction is restricted to one direction, and is bent along the outer periphery of the pre-wound spacer when the plastic chain is fed to the bobbin side by the feeding portion. The interlayer material insertion device according to claim 3. 8. The interlayer material insertion device according to claim 7, wherein the winding assist mechanism has a swinging portion that makes a feeding angle of the plastic chain variable.

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