JP5002314B2 - Interlayer material insertion device - Google Patents

Description

  The present invention relates to an interlayer material insertion device that is inserted when winding an optical fiber cable spacer.

  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.

  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.

  Recently, in order to reduce the price and installation cost of optical fiber cables, PE spacers that store optical fibers are also required to have a smaller diameter. As spacers become thinner, the dimensions of optical fiber storage grooves change. Therefore, the thickness of the ribs defining the storage groove is reduced. As a result, in the adjacent spacer, the rib easily enters the groove of the adjacent spacer, so that the so-called engagement easily occurs.

  With regard to the problem of the engagement between the spacers, conventionally, an interlayer material such as kraft paper having a thickness of about 0.1 mm or a corrugated cardboard having a thickness of about 1.1 to 1.3 mm is interposed between the winding layers. It was solved by inserting.

  However, in the conventional method of inserting the 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. 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.

  An interlayer material insertion device that can solve such a problem is proposed in Patent Document 1. In the insertion device proposed in Patent Document 1, when a fiber optic cable spacer is wound around the outer periphery of a rotationally driven bobbin in a multilayer shape via a traverse mechanism, a kraft paper or a corrugated cardboard sheet is used. The sheet-like interlayer material is inserted between the upper and lower layers of the spacer to be wound, and sucks and holds the end portion of the interlayer material sent out from the stock portion of the sheet-like interlayer material, and is guided by the traverse mechanism. Before the spacer rides on the pre-wound spacer on the lower layer side, press the interlayer material against the pre-wound spacer, rotate it with the bobbin, and immediately before the spacer rides on the pre-wound spacer on the lower layer side In addition, the interlayer material winding mechanism for inserting the end portion of the interlayer material between them, and the state in which the interlayer material winding mechanism presses the interlayer material against the already wound spacer is released. After the, with the rotation of the bobbin, a burr up of the interlayer material to be wound onto the already wound spacer, and a winding auxiliary mechanism for restricting from above.

  The inter-layer material winding mechanism includes an inter-layer material adsorbing / holding portion that sucks and holds the end portion of the inter-layer material, and a position detection roller that is movable in the front-rear direction in contact with the already-wound spacer and detects its position. And a pressure roller that can move back and forth to press the end of the interlayer material against the pre-wound spacer, and air that urges the end of the interlayer material held by the interlayer material adsorption holding unit toward the pressure roller. An air nozzle, an interlayer material adsorption holding part, a support for supporting the position detection and pressing roller, a swivel moving part of the support, and an air nozzle, a support and swivel moving part are mounted on the bobbin. It has a cart that moves close to or away from it.

  According to the interlayer material insertion device configured as described above, it is possible to reduce costs and manpower by automatically or semi-automatically inserting the interlayer material, but the technical problems described below was there.

JP 2002-370867 A

  That is, in the interlayer material insertion device disclosed in Patent Document 1, the end of the interlayer material to be inserted is sucked and held by the interlayer material suction portion that is movable back and forth, but the vicinity of the most advanced portion of the interlayer material is sucked. Since it cannot be held, there is a problem that it is difficult to insert the leading edge portion accurately between the upper and lower layers of the spacer due to its own weight, sheet curl, curl due to moisture in the outside air, and the like.

  The present invention has been made in view of such conventional problems, and an object of the present invention is to provide an interlayer material insertion device capable of accurately inserting an interlayer material between upper and lower layers of a spacer. It is to provide.

In order to achieve the above object, the present invention provides an optical fiber cable spacer on the outer periphery of a rotationally driven bobbin, such as kraft paper or cardboard sheet, when wound in multiple layers via a traverse mechanism. In the interlayer material insertion device for inserting the sheet-like interlayer material between the upper and lower layers of the spacer to be wound, while sucking and holding the end of the interlayer material fed from the sheet-like interlayer material supply unit, Before the spacer guided by the traverse mechanism rides on the pre-wound spacer on the lower layer side, the interlayer material is pressed against the pre-wound spacer and rotated together with the bobbin so that the spacer is on the lower layer side. An interlayer material winding mechanism for inserting an end portion of the interlayer material between them immediately before riding on the already wound spacer, and the interlayer material winding mechanism After releasing the state in which the interlayer material is pressed against the already-wound spacer, the upward rolling of the interlayer material wound on the already-wound spacer is restricted from above as the bobbin rotates. A winding auxiliary mechanism, and the interlayer material winding mechanism is in contact with the previously wound spacer and an interlayer material adsorbing / holding portion that is capable of sucking and holding an end of the interlayer material. A position detection roller that can move back and forth, a pressure roller that can move back and forth to press the end of the interlayer material against the wound spacer, and a pin that pierces the tip of the interlayer material and holds it a support portion supporting the said interlayer material suction holder pin, the position detection and the pressing roller, and a pivoting movement of the support portion, the pivotal movement portion and the support and the air nozzles are mounted, these said Relative bottle, and a moving base to close or away movement.

  According to the interlayer material insertion device configured as described above, the end of the interlayer material is sucked and held by the interlayer material adsorption holding part and the most advanced part is held by the pin, so that the most advanced part is deformed by its own weight. Can be prevented and can be accurately inserted between the upper and lower layers of the spacer to be wound.

  Also, the insertion timing of the interlayer material is controlled by the angle control according to the rotational speed of the winder (bobbin) with respect to the peripheral speed required by the production line speed and the winding diameter. It is possible to solve the problem that the engagement of the spacer occurs due to the deviation of the distance.

The winding assist mechanism includes a plastic chain mounted on the movable table and an operation unit for extending and retracting the plastic chain, and the plastic chain includes a plate-like link whose bending direction is restricted to one direction. When connected to the bobbin side by the operating portion, it curves along the outer periphery of the pre-wound spacer and stops feeding when the bobbin rotates by 225 °, and the bobbin moves to 390 °. When it rotates, it starts retreating, and when the rear end of the interlayer material reaches the vicinity of the apex of the bobbin, the plastic chain and the interlayer material are superposed within a range of a central angle of the bobbin of 30 °. Can do.

  According to this configuration, the plastic chain stop timing and return (reverse) start timing are controlled by angle control according to the rotation angle of the winder (bobbin), so that the spacer to be wound is near the full winding of the drum. Then, the problem that the tip of the interlayer material gets caught by the winding auxiliary mechanism and the problem that the plastic chain takes too much time to retract and interfere with the spacer to be damaged due to the excessive extension of the plastic chain can be solved.

  According to the interlayer material insertion device of the present invention, the leading edge of the interlayer material is prevented from being deformed by its own weight, and this can be accurately inserted between the upper and lower layers of the spacer to be wound.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings. 1 to 13 show an 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.

  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.

  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. .

  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.

  The interlayer material insertion device of the present embodiment includes a supply unit 18 for the interlayer material 16, a winding mechanism 20 for the interlayer material 16, a winding assist mechanism 28, and a control unit 29. The supply unit 18 includes a support base 18a and a stopper 18b fixed to one end of the support base 18a so that the surfaces are orthogonal to each other. A winding drum 18c for the interlayer material 16 is rotatably provided on the other end side of the support base 18a.

  A feed roller 18d that sandwiches and feeds the interlayer material 16 is disposed on the front side of the drum 18c, and a cutter 18e for cutting the interlayer material 16 is provided on the front side of the roller 18d. Further, as shown in FIG. 2, a vertically movable gate 18f that presses the interlayer material 16 fed onto the support base 18a from above is provided at the upper front portion of the support base 18a, and at the front end of the support base 18a. A sensor 18g is provided for detecting when the tip of the interlayer material 16 comes into contact with the stopper 18b.

  In the supply portion 18 of the interlayer material 16 configured as described above, the interlayer material 16 is sent out as follows. That is, the interlayer material 16 is required to have a length that substantially covers the entire circumference of one layer of the spacer 121 wound around the bobbin body 10a of the bobbin 10, but this required amount increases as the layer becomes higher. .

  Therefore, in the case of the present embodiment, the length of the interlayer material 16 is adjusted as follows to cope with such a change in length. In this embodiment, the length is determined by cutting the interlayer material 16 with the cutter 18e. In this case, the feed length of the interlayer material 16 is determined by measuring the rotation amount of the roller 18d with a rotary encoder (not shown). The length required for the interlayer material 16 is adjusted based on the amount of rotation.

  On the other hand, in the case of the present embodiment, the supply unit 18, the winding mechanism 20, and the winding auxiliary mechanism 28 are mounted on the moving table 30, and the moving table 30 is mounted in the horizontal direction in FIG. Is moved by a cylinder 32. Further, the winding mechanism 20 and the winding auxiliary mechanism 28 are mounted on the movable carriage 34 and can be moved independently by being separated from the movable stage 30 by driving the motor 36.

  When the interlayer material 16 of the drum 18c is used up, the supply unit 18, the winding mechanism 20, and the entire winding auxiliary mechanism 28 are moved backward, and then only the moving base 30 is moved forward to move the spacer 12. The winding work of the interlayer material 16 or the replacement work of the drum 18c can be performed at a position that does not interfere with the winding of the drum 18c.

  As shown in an enlarged view in FIG. 4, the winding mechanism 20 includes an adsorption holding unit 21 for the interlayer material 16, a position detection roller 22, a pressing roller 23, an air nozzle 24, a support unit 25, and a support unit 25. And the support 27.

  The suction holding unit 21 includes a hollow rectangular pipe 21a slightly shorter than the width of the interlayer material 16, and a plurality of suction holes are provided on one side surface of the rectangular pipe 21a so that the rectangular pipe 21a serves as a vacuum pump (not shown). By connecting and sucking the air in the square pipe 21a, the end portion of one interlayer material 16 placed on the support base 18a is adsorbed and held.

  In this case, the suction position of the interlayer material 16 by the square pipe 21 a of the suction holding portion 21 is a position slightly shifted inward from the end of the interlayer material 16. The square pipe 21a is attached to the telescopic end of the cylinder 21b, and is moved back and forth (up and down in FIG. 4) by the operation of the cylinder 21b.

  A bracket 21c having a substantially Z-shaped cross section is fixed to the telescopic end of the cylinder 21b, and a pair of pins 21d protrudes from one end surface of the bracket 21c. The mounting surface of the bracket 21c on which the pin 21d is provided is located on the same plane as the square pipe 21a, and when the cylinder 21b is driven, the pin 21d becomes the outermost part of the interlayer material 16 placed on the support base 18a. At the tip, it is pierced at both ends in the width direction.

  In the case of the present embodiment configured as described above, the interlayer material 16 is held by the piercing of the pin 21d in addition to the adsorption of the square pipe 21a. The tip shape of the pin 21d may be a cone, a triangular pyramid, or a quadrangular pyramid, the length of the cone may be about 5 to 10 mm, and the diameter of the pin 21d is preferably about 3φ.

  As will be described later, the position detection roller 22 is in contact with a pre-wrapped spacer of the bobbin 10 to detect its position. The roller main body 22a provided at the tip and the roller main body 22a are rotatable. And a cylinder 22b that supports and moves the roller body 22a back and forth.

  The pressing roller 23 presses the end portion of the interlayer material 16 against the pre-wound spacer, and supports the roller main body 23a provided at the tip, the roller main body 23a rotatably, and the roller main body 23a. And a cylinder 23b that moves back and forth.

  The air nozzle 24 ejects air that urges the end portion of the interlayer material 16 held by the suction holding portion 21 toward the pressing roller 23, and is supported by the tip of the support base 18 a so that the air is upward. It is designed to spout toward In the case of this embodiment, the pin 21d is pierced to hold the interlayer material 16, and therefore the air nozzle 24 is not necessarily required.

  The support unit 25 supports the suction holding unit 21, the pressing roller 23, and the position detection roller 22 arranged in a line in this order, and the support unit 25 is swung by the expansion and contraction operation of the swivel moving unit 26. It is moved and it changes from the state shown in FIG. 4 to the state shown in FIG. 6 thru | or FIG. The support 27 supports the swivel moving unit 26, and the support 27 is mounted and supported on the moving table 30.

  The moving table 30 includes an adsorption holding unit 21 for the interlayer material 16, a position detection roller 22, a pressing roller 23, an air nozzle 24, and a swivel moving unit 26, and these are moved close to or away from the bobbin 10.

  The winding auxiliary mechanism 28 includes a plastic chain 28a mounted on the movable table 30, a feeding part 28b thereof, and a guide part 28c of the plastic chain 28a. As shown in FIG. 5, the plastic chain 28a is formed by arranging a pair of plate-like links 280a whose bending direction is restricted to one direction in parallel and providing a connecting rod 281a on the tip side and connecting them. The interval between the links 280a is smaller than the interval between the flanges 10b of the bobbin 10.

  The plastic chain 28a is configured to be guided along the outer periphery of the already-wound spacer by being guided by the guide portion 28c when the plastic chain 28a is fed to the bobbin 10 side by the feeding portion 28b.

  The feeding portion 28b includes a sprocket wheel 280b that meshes with the plastic chain 28a, and a brake motor 281b that rotationally drives the sprocket wheel 280b.

  As shown in FIG. 6, the control unit 29 includes a sequence control unit 29a and an operation unit 29b. The operation unit 29b includes an operation input unit 290b and an operation output unit 291b. Operation switches 41 and sensors 42 of each cylinder are connected to the operation input unit 290b.

  Electromagnetic valves 43, indicator lights 44, motors 45, and an inverter 46 are connected to the operation output unit 291b, and a feeding motor 281b of the plastic chain 28a is connected to the inverter 46.

  On the other hand, the cut signal a, the winding preparation b, and the winding signal c are input to the sequence control unit 29a. The cut signal a is a signal for starting the cutting of the interlayer material 16. It is a condition that the length of the interlayer material 16 is the length of the winding circumference + α, and the value of α is preferably about 130 to 230 mm according to the outer diameter of the spacer.

  In order to calculate the length of the interlayer material 16, the values of the spacer diameter, the thickness of the interlayer material 16, the current number of layers, the body diameter of the bobbin 10, and the overlapping portion α are necessary. In the case of the present embodiment, the spacer diameter is input from the touch panel, the thickness of the interlayer material, the bobbin body diameter is stored as a parameter inside the sequencer, the current total number is automatically determined from the number of operations, and the length of the overlapping portion α is from the spacer diameter Judgment is automatic.

As a formula,
{(Spacer diameter + interlayer material thickness) × 2 × number of layers + drum body diameter} × circumferential rate + α
Ask for.

  In the case of the present embodiment, in addition to automatically determining the number of layers from the number of operations, the number of layers can be input from the touch panel, and the start can be performed even in the middle of the winding layer. Further, although the spacer diameter is input from the touch panel, the measured value may be taken in using an outer diameter measuring instrument or the like separately.

  Hereinafter, a procedure for determining the length of the interlayer material 16 when the cut signal a is input will be described with reference to FIG. Before receiving this signal, the above-described values are input in advance from the operation switches 41 and the like. When the cut signal a is received in this state, the length of the interlayer material 16 is then calculated in s1. This calculation is performed based on the above-described calculation formula, and is calculated according to the target number of layers.

  When this calculation is completed, a cutting start signal is sent to the supply unit 18 at s4, whereby the feed roller 18d rotates at a low speed, and the tip end portion of the interlayer material 16 sent out by this is fed by the cutter 18e. Disconnected.

  Next, in s5, it is determined whether or not the tip position of the interlayer material 16 is detected by the sensor 18g. If this is detected by the sensor 18g, the process proceeds to s6. In s6, the gate 18f is lowered to press the interlayer material 16 on the support base 18a to prevent the interlayer material 16 from being separated from the support base 18a, and also to prevent the tip of the interlayer material 16 from shifting in the left-right direction. To do.

  Next, in s7, the speed of the feeding roller 18d of the interlayer material 16 is set to a high speed, and in s8, it is determined whether or not the length of the interlayer material 16 obtained by the above-described calculation formula has been sent out. The feed length of the interlayer material 16 is obtained by measuring the rotation amount of the roller 18d with a rotary encoder, measuring the current value of the interlayer material 16 from this rotation amount, and calculating the length of the interlayer material 16 calculated in advance. In comparison, the length of the appropriate interlayer material 16 is determined.

  When it is determined that the necessary length of the interlayer material 16 has been delivered, the rear end portion of the interlayer material 16 is cut by s9 by the cutter 18e. Through the execution of the above steps, the cut interlayer material 16 is sent out to a position where the tip abuts against the stopper 18b, and is cut to an appropriate length.

  Next, a winding preparation procedure will be described. The winding preparation signal b is sent when the traversing mechanism 14 detects that the winding position in each layer has reached 90 mm from the heel end of the bobbin 10, and this signal b is input. Then, the preparation is performed according to the procedure shown in FIG. 8. When this signal b is received, the suction holding unit 21 is lowered in s1. In addition, before execution of this procedure, the winding mechanism 20 is in the state shown by the solid line in FIG.

  When the suction holding portion 21 is lowered and the square pipe 21a comes into contact with the interlayer material 16 on the support base 18a, the square pipe 21a is sucked in s2. The relationship between the suction holding part 21 and the interlayer material 16 at this time is shown in FIG. When the interlayer material 16 is adsorbed by the square pipe 21a, in the present embodiment, as shown in FIG. 9A, the pin 21d pierces the end portion of the interlayer material 16 together with this. In this case, as shown in FIG. 9C, the pin 16d is pierced at two positions on both ends in the width direction on the front end side of the interlayer material 16.

  Next, in s3, it is determined whether or not the suction pressure is increasing. If it is determined that the suction pressure is increasing, it is confirmed that the interlayer material 16 is securely held by suction. After confirming this, the suction holding unit 21 is moved up in s4, and then the swivel moving unit 26 is driven to turn 90 °.

  FIG. 5B shows the state of the winding mechanism 20 after turning 90 °. Next, in s6, the detection roller 22 is moved forward, and this state is shown in FIG. 10, and the position detection roller 22 is in a state where the roller body 22a protrudes forward from the presser roller 23.

  Next, in s7, the moving table 30 is moved forward, and when the position detection roller 22 detects the spacer wound around the bobbin 10 by this movement, the moving table 30 stops moving forward and the winding preparation is completed. Completed (s8, s9).

  Next, when receiving the winding signal c, first, as shown in FIG. 11, the detection roller 22 is moved backward and the presser roller 23 is moved forward. Thereby, the interlayer material 16 is detached from the pin 21b and is also separated from the suction force of the square pipe 21a, and the leading end of the interlayer material 16 and the spacer 12 about to be wound on the upper layer from now on, After that, as the bobbin 10 rotates, it is wound so as to cover the spacer on the lower layer side.

  The timing for winding the interlayer material 16 at this time is slightly better than the inflection point, but there is a time lag between the reception of the winding signal c and the actual insertion of the interlayer material 16, and the optimum timing. In order to insert, it is necessary to consider the circumference (product length) due to continuing the winding operation even at this time.

  The circumference (product length) per unit time depends on the winding line speed and the winding diameter, and the distance obtained by multiplying this by the time lag time is the actual circumference. Since the rotation angle of the winder can be calculated from the circumference at this time, the angle of the timing of the winding signal c can be controlled by the rotation angle of the bobbin 10.

For example, if the winding line speed is 6.0 m / min, the winding diameter is 1000 mm, and the time lag from when the winding signal c is received is 1.5 sec,
Since line speed ≒ peripheral speed,
Peripheral speed ≒ 6.0m / min = 100m / sec
Time lag: The perimeter to advance in 1.5 seconds is
Perimeter 1 = 100 × 1.5 = 150mm
When the winding diameter is 1000 mm, the circumference around 1 ° is
Circumference length 2 = 1000 × circumference ÷ 360≈8.727 mm / °
Therefore, when the winding diameter is 1000 mm, the rotation angle that proceeds for 1.5 seconds is: rotation angle = 150 mm ÷ 8.727≈17.2 °
Therefore, in the case of the above condition, if the winding signal c is received 17.2 ° earlier than the insertion start point (winding start angle), the interlayer material 16 can be inserted at the optimum timing.
Thus, by always keeping the insertion timing of the interlayer material 16 optimal, it is possible to solve the problem that the engagement of the spacer occurs due to the timing difference of the interlayer material 16.

  On the other hand, the winding auxiliary mechanism 28 operates as shown in FIGS. That is, when the winding signal c is received, the rotation angle signal of the bobbin 10 is detected at s1, and it is determined whether or not it is a forward angle.

  This advance angle is set as follows. As shown in FIG. 13, the tip position of the plastic chain 28a moved by the winding assist mechanism 28 is the same as the tip position of the guide portion 28c. The interlayer material 16 is inserted from the side (below) of the bobbin 10 by the pressing roller 23. At this time, if the timing for ejecting the plastic chain 28a is not changed with respect to the winding diameter of the bobbin 10, the plastic chain 28a starts to move forward before the interlayer material 16 reaches the guide portion 28c. It will move forward later than 16.

In order to make the arrival of the interlayer material 16 coincide with the advance timing of the plastic chain 28a with respect to the winding diameter, it can be controlled by an angle connecting the tip of the guide portion 28c and the center of the bobbin 10 as shown in FIG. . That is, as shown in FIG. 13A, the angle A is when the winding diameter is small, but the angle B is smaller than this when the winding diameter is large. In this embodiment, the control is simply divided into six steps, but may be calculated and controlled for each layer.
When it is determined that the advance angle has been reached, the plastic chain 28a is moved forward in s2, and when it is determined that the bobbin 10 has been rotated forward by 225 °, the plastic chain 28a is moved forward at that time. Stop (s3, s4). Next, when it is determined that the bobbin 10 has been rotated forward by 390 °, the plastic chain 28a is moved backward (s5, s6). Then, when the rear end of the plastic chain 28a is retracted to the vicinity of the top of the bobbin 10 (position about 30 ° before the top), the backward movement of the plastic chain 28a is stopped (s7, s8). The plastic chain 28a and the interlayer material 16 are polymerized in the range of the central angle of the bobbin 10 of 30 °. FIG. 14 shows such a movement state of the plastic chain 28a.

  In this way, the stop timing and return (retreat) start timing of the plastic chain 28a are performed by angle control according to the rotation angle of the winder (bobbin 10). Solves the problem that the tip of the interlayer material 16 gets caught by the winding auxiliary mechanism 28 near the winding, and that the plastic chain takes too much time to retract, interferes with the spacer and gets scratched. it can.

  Now, according to the interlayer material insertion device configured as described above, the end of the interlayer material 16 is sucked and held by the suction holding portion 21 and the most advanced portion is held by the pin 21d. Therefore, it can be accurately inserted between the upper and lower layers of the spacer 12 to be wound.

  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.

It is a whole side view showing the 1st example of the interlayer material insertion device concerning the present invention. It is a top view of the interlayer material insertion apparatus of FIG. It is principal part detailed explanatory drawing of the interlayer material insertion apparatus shown in FIG. It is a principal part enlarged view of FIG. It is a principal part enlarged view of the winding assistance mechanism of the interlayer material insertion apparatus shown in FIG. It is a block diagram of the control part of the interlayer material insertion apparatus shown in FIG. It is a flowchart figure of the cutting procedure of the interlayer material performed in the supply part of the interlayer material insertion apparatus shown in FIG. It is a flowchart figure of the winding preparation procedure of the winding mechanism of the interlayer material insertion apparatus shown in FIG. It is action | operation explanatory drawing of the adsorption | suction holding part of the winding mechanism in the procedure shown in FIG. It is operation | movement explanatory drawing of the position detection roller of the winding mechanism in the procedure shown in FIG. It is action | operation explanatory drawing of the press roller of the winding mechanism in the procedure shown in FIG. It is a flowchart figure which shows the operation | movement procedure of the winding assistance mechanism of the interlayer material insertion apparatus shown in FIG. It is explanatory drawing of the setting reason of the advance angle shown in FIG. 12, and an advance angle. It is principal part state explanatory drawing of the winding assistance mechanism which operate | moves in the procedure shown in FIG.

Explanation of symbols

10 bobbins
10a Winding body part 12 Spacer 14 Traverse mechanism
14a Traverse guide 16 Interlayer material 20 Winding mechanism
21 Adsorption holding part
21a Square pipe 21d Pin 22 Position detection roller
23 Pressing roller
24 Air nozzle
25 Support part 28 Winding auxiliary mechanism 28a Plastic chain 28b Feeding part 29 Control part

Claims (2)

When the optical fiber cable spacer is wound around the outer periphery of the rotationally driven bobbin in multiple layers via the traverse mechanism, a sheet-like interlayer material such as kraft paper or cardboard-like sheet is wound around the spacer. In the interlayer material insertion device for inserting between the upper and lower layers,
Before sucking and holding the end portion of the interlayer material fed from the sheet-like interlayer material supply unit, 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. A winding auxiliary mechanism that regulates from above,
The interlayer material winding mechanism is
An inter-layer material adsorbing / holding portion that freely holds back and forth to suck and hold an end portion of the interlayer material;
A position detection roller that comes into contact with the already-wound spacer and can move 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 wound spacer;
A pin that pierces and holds the leading edge of the interlayer material;
A support part for supporting the interlayer material adsorption holding part and the pin, position detection and pressing roller;
Interlayer material insertion characterized by having a swivel moving part of the support part, an air nozzle , the support part, and the swivel moving part mounted thereon, and a moving base for moving these close to or away from the bobbin. apparatus. The winding assist mechanism includes a plastic chain mounted on the movable table, and an operation unit for extending and retracting the plastic chain,
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 drawn out to the bobbin side by the operation portion. When the bobbin is rotated 225 °, the feeding is stopped, and when the bobbin is rotated 390 °, the retraction is started, and when the rear end of the interlayer material reaches the vicinity of the top of the bobbin, the plastic chain and the interlayer material The interlaminar material insertion device according to claim 2, wherein the bobbin is superposed in a range of a central angle of 30 °.

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