JP2006151550A - Tape take-up device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a defective part from entering a tape roll by effectively coping with the abnormal condition where a magnetic tape on the outer peripheral surface of the tape roll is damaged by nozzle or the like in taking up the magnetic tape. <P>SOLUTION: This tape take-up device 10 includes: a take-up shaft 12 for taking up the tape 14 to form a tape roll 15; and a nozzle 16 for spraying gas to the outer peripheral surface of the tape roll in taking up the tape. The device includes: a moving means for moving the nozzle in the direction of moving forward and backward to the take-up shaft; a space measuring means for measuring the space between the tip of the nozzle and the outer peripheral surface of the tape roll; and an interlock means for stopping the operation of the device when the space between the tip of the nozzle and the outer peripheral surface of the tape roll becomes zero. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a tape winding device, and more particularly to a tape winding device suitable for winding a belt-like object such as a magnetic tape around a winding shaft in a roll shape.

  As a technique for winding a belt-like object such as a magnetic tape around a take-up shaft in a roll shape, various improved techniques have been proposed so far, and corresponding effects have been obtained.

For example, the winding device described in Patent Document 1 includes a contact pressure roll that is in rolling contact with the outer peripheral surface of the tape roll during winding, a wind pressure unit that blows air onto the outer peripheral surface of the tape roll during winding, and a pressure roll. And a movable part moving means for displacing the wind pressure means according to the winding diameter of the tape roll, and controlling the distance between the nozzle and the outer peripheral surface of the tape roll to be constant, regardless of the winding diameter of the tape roll, The winding pressure is configured to be constant by the cooperation of the contact pressure roll and the wind pressure means.
JP-A-6-329308

  However, in the conventional winding device, when the variation in the thickness of the tape is large, or when vibration is generated in the device, the nozzle may come into contact with the outer peripheral surface of the tape roll to cause damage. As described above, when the damaged tape is mixed into the tape roll and wound up, the entire tape roll becomes a defective product, and when the tape is overlooked and shipped, a complaint is made from the customer.

  In particular, many recent magnetic tapes are thin and smooth, making winding difficult compared to conventional magnetic tapes, and the above-described defects are a problem.

  On the other hand, it is technically difficult to detect damaged parts of a tape that is wound at high speed online, and it is also a factor to increase costs by rewinding a tape roll that has been wound once and inspecting it offline. It is difficult to execute.

  Further, in the conventional winding device, when controlling the distance between the nozzle tip and the outer peripheral surface of the tape roll, the winding diameter including the eccentric amount of the tape roll must be calculated at a high speed. In addition to this, there is a problem that a complicated control system is required to correct the nozzle position at high speed according to the calculation result.

  The present invention has been made in view of such circumstances, and can effectively cope with an abnormal situation in which the magnetic tape on the outer peripheral surface of the tape roll is damaged by a nozzle or the like when winding the magnetic tape, and the defective portion of the tape. An object of the present invention is to provide a tape winding device that can prevent mixing into a roll.

  In order to achieve the above object, the present invention comprises a winding means for winding a tape to form a tape roll, and a gas blowing means for blowing gas toward the outer peripheral surface of the tape roll when winding the tape. A moving means for moving the gas blowing means in a direction to advance and retreat with respect to the winding means, an interval measuring means for measuring an interval between a tip portion of the gas blowing means and the outer peripheral surface of the tape roll, Provided is a tape winding device comprising: interlocking means for stopping the operation of the apparatus when the distance between the tip of the gas blowing means and the outer peripheral surface of the tape roll becomes zero. To do.

  According to the present invention, the distance between the tip of the gas blowing means and the outer peripheral surface of the tape roll is measured, and the operation of the apparatus is automatically stopped when this distance becomes zero. It is possible to effectively cope with an abnormal situation in which the magnetic tape on the outer peripheral surface of the tape roll is damaged, and to prevent the defective portion from being mixed into the tape roll.

  Further, the present invention provides winding means for winding a tape to form a tape roll, gas blowing means for blowing gas toward the outer peripheral surface of the tape roll when winding the tape, and the gas blowing means. A moving means for moving in a direction to advance and retreat with respect to the winding means, a distance measuring means for measuring a distance between a tip portion of the gas blowing means and an outer peripheral surface of the tape roll, and a tip portion of the gas blowing means And an interlocking means for stopping the operation of the apparatus when the distance between the tape roll and the outer peripheral surface of the tape roll deviates from a set value of upper and lower limits.

  According to the present invention, the distance between the tip of the gas blowing means and the outer peripheral surface of the tape roll is measured, and the operation of the apparatus is automatically stopped when this distance deviates from the upper and lower limit setting values. It is possible to effectively cope with an abnormal situation in which the magnetic tape on the outer peripheral surface of the tape roll is damaged by the gas blowing means, and to prevent the defective portion from being mixed into the tape roll.

  Here, the upper and lower set values are preferably about 10 to 70 μm.

  In this invention, it is preferable that the said space | interval measurement means is a position sensor which detects the position of the said gas spraying means. If such a position sensor is used, the space | interval of the front-end | tip part of a gas spraying means and the outer peripheral surface of a tape roll can be measured accurately at high speed.

  In the present invention, the distance measuring means includes a light projecting means provided on one side sandwiching the outer peripheral surface of the tape roll and the tip of the gas blowing means, the outer peripheral surface of the tape roll, and the gas blowing. A combination with a light receiving means provided on the other side across the tip of the means is preferable. With such a combination of light projecting means and light receiving means, it is resistant to noise, and the distance between the tip of the gas blowing means and the outer peripheral surface of the tape roll can be measured with high speed and accuracy.

  Moreover, in this invention, it is preferable to provide the interlock means which stops the driving | operation of an apparatus, when the vibration of the said gas spraying means detected with the said position sensor becomes more than predetermined. By detecting the vibration of the gas blowing means above a predetermined level and stopping the operation of the apparatus in this way, it is possible to effectively cope with an abnormal situation in which the magnetic tape on the outer peripheral surface of the tape roll is damaged, and the tape in the defective part Mixing into the roll can be prevented.

  The “vibration of a predetermined value or more” is not limited to the case where the vibration is defined by the amplitude, but may be a case where the vibration is defined by the frequency, or may be a case where the vibration is defined by combining the amplitude and the frequency.

  As described above, according to the present invention, it is possible to effectively cope with an abnormal situation in which the magnetic tape on the outer peripheral surface of the tape roll is damaged by the gas blowing means, and mixing of defective portions into the tape roll can be prevented.

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a tape winding device according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view showing a tape winding device 10 according to the present invention, and FIG. 2 is a plan view thereof.

  As shown in these drawings, the winding device 10 includes a reel (corresponding to a winding means) 12, and the reel 12 is connected to a motor (not shown). Then, by driving the motor, the reel 12 rotates, and the tape 14 is wound around the outer peripheral surface of the reel 12. Thereby, the tape roll 15 is formed. 1 and 2 show the reel 12 without a flange for easy understanding of the configuration, the invention is not limited to this. That is, the structure using the reel with a flange which provided the flange in the edge part of one side or both sides may be sufficient.

  The nozzle 16 which is a gas blowing means is disposed so as to face the outer peripheral surface of the tape roll 15. 3 is a cross-sectional view of the nozzle 16, and FIG. 4 is a cross-sectional view taken along the line AA of FIG. As shown in these drawings, a concave blowout portion 16 </ b> A that is an opening is formed at the tip of the nozzle 16. The blowing portion 16 </ b> A is formed in a slit shape elongated in the width direction of the tape 14, and the size thereof is formed according to the dimension of the tape 14. For example, when the width of the tape 14 is 12.7 mm (1/2 inch), the width W of the blowing portion 16A is formed to be 8 to 15 mm, and the slit interval S (the length in the running direction of the tape 14) is 0.2. Formed to ˜2.0 mm. Moreover, the depth D of a slit is formed, for example with a magnitude | size of 0.1-2.0 mm.

  A hose 18 is connected to the rear end side of the nozzle 16. The hose 18 is connected to a fluid supply source (not shown), and fluid is supplied from the fluid supply source to the hose 18. In addition, a flow path 16B and a flow path (throttle portion) 16C for communicating the nozzle 16 and the hose 18 are formed inside the nozzle 16. The channel 16 </ b> B is a hole having the same diameter as the inner diameter of the hose 18.

  The flow path (throttle section) 16C is a flow path that connects the flow path 16B and the blowing section 16A. The width V of the throttle portion 16C is formed so that the pressure loss between the flow path 16B and the blowing portion 16A is small. That is, as shown in FIG. 4, the flow path 16 </ b> C is formed so that the vertical size V gradually increases and becomes the width W of the blowing portion 16 </ b> A.

  On the other hand, the interval U (length in the running direction of the tape 14) of the narrowed portion 16C is formed smaller than the inner diameter of the hose 18 and the slit interval S of the blowing portion 16A. This interval U is formed to 0.05 to 0.2 mm, for example.

  That is, the cross-sectional area of the restricting portion 16C is smaller than the cross-sectional area of the blowing portion 16A. With such a configuration, a range in which the blown gas tape 14 is pressed is widened, and an overall force for pressing the tape 14 is also increased. Thereby, a fixed urging force can be applied to the outer peripheral surface of the tape roll 15, and as a result, a tape roll 15 of good quality can be obtained.

  The ratio of the cross-sectional area of the blowing part 16A and the cross-sectional area of the throttle part 16C is preferably in the range of 2-50. By setting the cross-sectional area ratio in such a range, a stable urging force can be applied. When the ratio of the cross-sectional areas is less than 2, the force by which the sprayed fluid presses the tape 14 is not strong. On the other hand, when the ratio of the cross-sectional areas is more than 50, the sprayed fluid is in the entire range of the blowing portion 16A. In any case, the effect of restricting the position of the tape 14 is diminished.

  When a fluid is supplied from the hose 18 to the nozzle 16 formed as described above, the fluid passes through the flow path 16B and the narrowed portion 16C from the blowing portion 16A that is the opening of the nozzle 16 toward the outer peripheral surface of the tape roll 15. And blown out. The flow rate of the fluid at that time is controlled to, for example, 5 to 50 (nL / min). In addition, the kind of fluid is not specifically limited, Air, inert gas (for example, nitrogen gas), etc. can be used. Hereinafter, an example using air as a fluid will be described.

  FIG. 5 is an explanatory view for explaining the air blowing position with respect to the tape roll 15. When the point where the tape 14 contacts the tape roll 15 is defined as the contact point P, the air blowing position needs to be downstream from the contact point P in the winding direction. This is because even if air is blown onto the tape 14 upstream of the contact point P, the effect of adjusting the winding hardness of the tape roll 15 cannot be obtained.

  Further, the most preferable blowing position of air is preferably slightly downstream of the contact point P as shown in FIG. Specifically, it is preferable that the upstream edge portion Q of the nozzle 16 is downstream of the contact point P. That is, it is preferable to arrange the nozzle 16 so that the distance X from the contact point P to the edge portion Q in the winding direction is a positive number. When the nozzle 16 is arranged in this way, the tape 14 can be prevented from vibrating when air is blown.

  As shown in FIGS. 1 and 2, the tape 14 is wound around the guide roller 13 and wound around the tape roll 15. The guide roller 13 is fixed to a housing (not shown) of the winding device 10. For this reason, as the winding diameter of the tape roll 15 increases, there is a problem that the position of the contact point P changes in the circumferential direction, and the positional relationship between the contact point P and the air blowing position changes. Therefore, when the winding diameter of the tape roll 15 is the smallest (see the two-dot chain line in FIG. 2), the guide roller 13 and the nozzle 16 are positioned so that the contact point P and the air blowing position satisfy the above relationship. Install. As a result, when the winding diameter of the tape roll 15 increases, the contact point P moves upstream in the winding direction, so that the air blowing position is always arranged downstream of the contact point P.

  The nozzle 16 arranged as described above is fixed on the slider 20 constituting the linear guide 21. The slider 20 is slidably supported by a rail 22, and the rail 22 is disposed in the radial direction of the reel 12 (that is, in a direction orthogonal to the surface in contact with the outer peripheral surface of the tape roll 15). Thereby, the nozzle 16 is supported so as to be able to advance and retract with respect to the outer peripheral surface of the tape roll 15.

  An air cylinder 24 is provided behind the nozzle 16. The air cylinder 24 is fixed to a housing of the apparatus main body (not shown). The rod 24A of the air cylinder 24 is expanded and contracted in the radial direction of the reel 12, and the nozzle 16 is taped by a constant urging force such as 0.49N to 10N (= 50 gf to 1.02 kgf) by the tip of the rod 24A. It is biased toward the roll 15 side. When the nozzle 16 is urged from the rear toward the tape roll 15 in this way, the nozzle 16 approaches the tape roll 15, and the repulsive force of the air layer formed at a certain position, that is, the gap between the nozzle 16 and the tape roll 15, Then, it automatically moves to a position where the urging force by the air cylinder 24 balances and stops.

  For example, when the distance (gap) between the nozzle 16 and the outer peripheral surface of the tape roll 15 is small, the flow rate of air flowing out into the gap decreases, so the pressure in the air layer increases and the repulsive force increases. Therefore, since the repulsive force becomes larger than the urging force of the air cylinder 24, the nozzle 16 moves backward to a point where both are balanced.

  On the contrary, when the distance (gap) between the nozzle 16 and the outer peripheral surface of the tape roll 15 is large, the flow rate of air flowing out into the gap increases, so the pressure of the air layer decreases and the repulsive force decreases. Therefore, since the repulsive force is smaller than the urging force of the air cylinder 24, the nozzle 16 moves forward by the urging force of the air cylinder 24 and stops when both are balanced.

  In this way, the nozzle 16 is automatically adjusted to a position where the pressure of the air layer and the urging force of the air cylinder 24 are balanced, so that the nozzle 16 is always kept at a constant distance from the outer peripheral surface of the tape roll 15. . The air cylinder 24 is not limited to the piston type, and a bellows type urging means that does not generate a frictional force when the rod 24A is moved may be used.

  Next, a distance measuring unit that measures the distance between the tip of the nozzle 16 and the outer peripheral surface of the tape roll 15 will be described. In FIG. 2, a linear scale 30 is fixed to a gantry (housing) of a device (not shown) via a stay 30A. The stylus at the tip of the linear scale 30 is pressed against a fixed arm 32 extending from the side surface of the nozzle 16 so that the advance / retreat position of the nozzle 16 can be measured. In FIG. 1, the interval measuring means is not shown.

  The linear scale 30 is also referred to as a moire scale, and is a displacement meter that can detect a position based on the principle of moire fringes generated between a built-in fixed scale and a moving scale.

  In FIG. 2, a laser-type position sensor (displacement meter) 33 is disposed on the opposite side of the nozzle 16 with the tape roll 15 interposed therebetween, and the displacement of the surface of the tape roll 15 can be measured.

  With the above configuration, signals taken from the linear scale 30 and the laser type position sensor 33 are compared by a control means (not shown), and the distance between the tip of the nozzle 16 and the outer peripheral surface of the tape roll 15 can be calculated. Yes.

  That is, the reading of the linear scale 30 in a state where the tip of the nozzle 16 is in contact with the surface of the reel 12 on which the tape 14 is not wound on the outer peripheral surface is set to 0 point of the linear scale 30, and the tape 14 is applied to the outer peripheral surface. The value measured by the laser-type position sensor 33 on the surface of the reel 12 that is not wound is set as the zero point of the laser-type position sensor 33, and the measured values thereafter are compared with each other to obtain the tip of the nozzle 16 The distance from the outer peripheral surface of the tape roll 15 can be calculated.

  Then, when the calculation result of the distance between the tip of the nozzle 16 and the outer peripheral surface of the tape roll 15 becomes 0, a control means (not shown) is set so that the operation of the tape winding device 10 is stopped. Thus, an interlock means can be formed.

  Further, if a control means (not shown) is set so as to stop the operation of the apparatus when the vibration of the nozzle 16 exceeds a predetermined value by the detection of the linear scale 30, an interlock means can be formed thereby.

  Next, the operation of the winding device 10 configured as described above will be described.

  The winding device 10 rotates the reel 12 so that the tape 14 is wound around the reel 12 and a tape roll 15 is formed. At that time, by blowing air from the nozzle 16 to the outer peripheral surface of the tape roll 15, the tape 14 is brought into close contact with the outer peripheral surface of the tape roll 15, and air entrainment is prevented.

  During winding, the nozzle 16 is urged toward the outer peripheral surface of the tape roll 15 with a constant urging force by the air cylinder 24. Further, the nozzle 16 receives a repulsive force from the air layer at the tip of the nozzle 16 by blowing air from the nozzle 16. Therefore, the nozzle 16 automatically moves to a position where the repulsive force due to the air layer at the tip of the nozzle 16 and the urging force due to the air cylinder 24 at the rear end of the nozzle 16 are balanced and stops.

  As a result, the distance between the nozzle 16 and the outer peripheral surface of the tape roll 15 is kept constant, so that a constant pressing force is always applied to the outer peripheral surface of the tape roll 15 and the tape 14 is wound with an appropriate winding hardness. Can be taken.

  As described above, according to the winding device 10 of the present embodiment, the nozzle 16 is slidably supported and urged toward the tape roll 15 with a constant urging force. It is kept at a constant distance from the 15 outer peripheral surfaces. In addition, since a constant pressing force is applied to the outer peripheral surface of the tape roll 15 by the air blown from the nozzle 16, the tape 14 is wound with an appropriate winding hardness.

  In particular, the distance between the nozzle 16 and the outer peripheral surface of the tape roll 15 is always measured by a distance measuring means (linear scale 30 and laser type position sensor 33), and the distance between the tip of the nozzle 16 and the outer peripheral surface of the tape roll 15 is measured. When the calculation result of 0 is 0, or when the vibration of the nozzle 16 becomes equal to or greater than a predetermined value, the operation of the tape winding device 10 is stopped by the interlock means. Thereby, it is possible to effectively cope with an abnormal situation in which the tape 14 on the outer peripheral surface of the tape roll 15 is damaged by the nozzle 16, and mixing of defective portions into the tape roll 15 can be prevented.

  Next, a second embodiment of the present invention will be described. FIG. 6 is a plan view showing the tape winding device 100 of the second embodiment of the present invention, and corresponds to FIG. 2 of the first embodiment. In addition, the same code | symbol is attached | subjected about the same and similar member as a 1st embodiment, and the detailed description is abbreviate | omitted.

  The tape winding device 100 is different from the tape winding device 10 of the first embodiment in that the configuration of the interval measuring means and the guide roller 13 is different. Hereinafter, it demonstrates in order.

  In the tape winding device 100 of this embodiment, a linear encoder 34 is employed as the interval measuring means instead of the linear scale 30 of the first embodiment. The linear encoder 34 includes a reading unit 34B fixed to the side surface of the nozzle 16 and a scale 34A fixed to a frame (housing) of an apparatus (not shown) so as to face the reading unit 34B. Since the function of the linear encoder 34 is substantially the same as the function of the linear scale 30, description thereof will be omitted.

  Further, in the tape winding device 100 of the present embodiment, the guide roller 13 is configured to move as the winding diameter of the tape roll 15 increases. The guide roller 13 is fixed to the slider 20 of the linear guide 21 (not shown). Thereby, when the winding diameter of the tape roll 15 increases, the nozzle 16 moves so as to retract from the reel 12, and the guide roller 13 also moves accordingly. Therefore, the relationship between the contact point P and the air blowing position is kept substantially constant regardless of the winding diameter of the tape roll 15. That is, the air blown from the nozzle 16 is always blown downstream of the contact point P.

  The operation of the winding device 100 of the present embodiment configured as described above is substantially the same as the operation of the winding device 10 of the first embodiment. Therefore, the description is omitted.

  Next, a third embodiment of the present invention will be described. FIG. 7 is a plan view showing the tape winding device 110 of the third embodiment of the present invention, and corresponds to FIG. 2 of the first embodiment and FIG. 6 of the second embodiment. In addition, the same code | symbol is attached | subjected about the same and similar member as a 1st embodiment, and the detailed description is abbreviate | omitted. The guide roller 13 is not shown.

  The tape winding device 110 is different from the tape winding device 10 of the first embodiment in that the configuration of the interval measuring means is different. That is, in the tape winding device 110 of the present embodiment, the distance measuring means is replaced by the projector 36 and the light receiver 38 instead of the linear scale 30 and the laser type position sensor (displacement meter) 33 of the first embodiment. Set is adopted.

  Both the projector 36 and the light receiver 38 are fixed to the slider 20 of the linear guide 21 (not shown). Thereby, when the winding diameter of the tape roll 15 increases, the nozzle 16 moves so as to retract from the reel 12, and accordingly, the projector 36 and the light receiver 38 also move so as to retract from the reel 12.

  As the light projector 36 of the interval measuring means, various known light sources can be used as long as they are capable of irradiating a beam having a predetermined luminance and a predetermined luminous flux size. As the light receiver 38 of the interval measuring means, a beam irradiated from the light projector 36 and passed between the tip of the nozzle 16 and the outer peripheral surface of the tape roll 15 is received, and the size of the received beam can be measured or received. Various known light receiving means can be employed as long as the brightness of the beam can be measured.

  An example of the former is a one-dimensional line sensor (CCD line sensor or the like), and an example of the latter is a luminance sensor (photomal or the like).

  Next, the operation of the winding device 110 of the present embodiment configured as described above will be described. However, description of operations similar to those of the first embodiment will be omitted.

  Similar to the first embodiment, according to the winding device 110 of the present embodiment, the nozzle 16 is slidably supported and urged toward the tape roll 15 with a constant urging force. 16 is always kept at a constant distance from the outer peripheral surface of the tape roll 15. In addition, since a constant pressing force is applied to the outer peripheral surface of the tape roll 15 by the air blown from the nozzle 16, the tape 14 is wound with an appropriate winding hardness.

  During the operation of the apparatus, the distance between the nozzle 16 and the outer peripheral surface of the tape roll 15 is always measured by the distance measuring means. That is, the beam irradiated from the projector 36 and passed between the tip of the nozzle 16 and the outer peripheral surface of the tape roll 15 is received by the light receiver 38, and this is measured by measuring the size of the received beam or the brightness of the received beam. The distance between the tip of the nozzle 16 corresponding to the outer peripheral surface of the tape roll 15 is calculated.

  If the calculation result of the distance between the tip of the nozzle 16 and the outer peripheral surface of the tape roll 15 becomes 0 during the operation of the apparatus, the operation of the tape winding apparatus 10 is stopped by the interlock means. Thereby, it is possible to effectively cope with an abnormal situation in which the tape 14 on the outer peripheral surface of the tape roll 15 is damaged by the nozzle 16, and mixing of defective portions into the tape roll 15 can be prevented.

  Next, a fourth embodiment of the present invention will be described. FIG. 8 is a plan view showing a tape winding device 120 according to the fourth embodiment of the present invention. FIG. 8 shows the first embodiment shown in FIG. 2, the second embodiment shown in FIG. 6 and the third embodiment. This corresponds to FIG. In addition, the same code | symbol is attached | subjected about the same and similar member as a 3rd embodiment, and the detailed description is abbreviate | omitted. The guide roller 13 is not shown.

  The tape winding device 120 is different from the tape winding device 110 of the third embodiment in that the configuration of the interval measuring means is different. That is, in the tape winding device 120 of the present embodiment, a set of the projector 40 and the light receiver 42 is adopted as the interval measuring means as in the third embodiment, but in addition to this, the mirrors 44 and 46 are used. Is arranged on the optical axis of the projector 40 and the light receiver 42.

  That is, in the tape winding device 120 of this embodiment, unlike the third embodiment, the light projector 40 and the light receiver 42 so that the mirrors 44 and 46 sandwich the tip of the nozzle 16 and the outer peripheral surface of the tape roll 15. Therefore, it is possible to obtain an effect that the layout in the vicinity of the tip of the nozzle 16 can be made compact. Thereby, the freedom degree of a structure of a space | interval measuring means increases so that it may not interfere with the tape 14. FIG.

  Both the projector 36 and the light receiver 38 are fixed to the slider 20 of the linear guide 21, and the mirrors 44 and 46 are also fixed to the slider 20 of the linear guide 21 (not shown). Thereby, when the winding diameter of the tape roll 15 increases, the nozzle 16 moves so as to retract from the reel 12, and accordingly, the light projector 36, the light receiver 38 and the mirrors 44, 46 also retract from the reel 12. Move to.

  As the projector 40 and the light receiver 42 of the interval measuring means, the same ones as the projector 36 and the light receiver 38 of the third embodiment can be adopted.

  About the effect | action of the winding apparatus 120 of this embodiment comprised as mentioned above, it is the same as that of a 3rd embodiment. Therefore, the description is omitted.

  As mentioned above, although embodiment of the winding device of the tape which concerns on this invention was described, this invention is not limited to the said embodiment, Various aspects can be taken.

  For example, in this embodiment, the air cylinder 24 is used as means for urging the nozzle 16 with a constant urging force. However, the present invention is not limited to this, and a hydraulic cylinder, gravity, magnetic force, or the like is used. An urging means for urging may be used.

  The tape winding device according to the present invention is particularly suitable as a winding device for winding a magnetic tape. It is necessary for the magnetic tape to align the edges of the tape at the time of winding, and to surely prevent air from being caught between the wound tapes. However, if the tape winding device of the present invention is used, the magnetic tape Can be wound up with appropriate winding hardness, and can be wound up neatly with the edges aligned without involving air.

The perspective view which shows the winding apparatus which concerns on this invention The top view which shows the winding apparatus which concerns on this invention Cross section of nozzle Sectional drawing which follows the AA line of FIG. Explanatory drawing explaining the blowing position of air The top view of the winding device of other embodiments The top view of the winding device of other embodiments The top view of the winding device of other embodiments

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Winding device, 12 ... Reel, 13 ... Guide roller, 14 ... Tape, 15 ... Tape roll, 16 ... Nozzle, 16A ... Outlet part, 16B ... Flow path, 16C ... Restriction part (flow path), 18 ... Hose , 20 ... slider, 21 ... linear guide, 22 ... rail, 24 ... air cylinder, 30 ... linear scale, 32 ... fixed arm, 33 ... laser type position sensor, 34 ... linear encoder, 36, 40 ... projector, 38, 42 ... receiver, 44, 46 ... mirror

Claims (5)

Winding means for winding a tape to form a tape roll;
Gas blowing means for blowing gas toward the outer peripheral surface of the tape roll when winding the tape;
Moving means for moving the gas blowing means in a direction to advance and retreat with respect to the winding means;
An interval measuring means for measuring an interval between the tip of the gas blowing means and the outer peripheral surface of the tape roll;
Interlock means for stopping the operation of the apparatus when the distance between the tip of the gas blowing means and the outer peripheral surface of the tape roll becomes zero;
A tape take-up device comprising: Winding means for winding a tape to form a tape roll;
Gas blowing means for blowing gas toward the outer peripheral surface of the tape roll when winding the tape;
Moving means for moving the gas blowing means in a direction to advance and retreat with respect to the winding means;
An interval measuring means for measuring an interval between the tip of the gas blowing means and the outer peripheral surface of the tape roll;
Interlock means for stopping the operation of the apparatus when the gap between the tip of the gas blowing means and the outer peripheral surface of the tape roll deviates from the upper and lower limit setting values;
A tape take-up device comprising:   The tape winding device according to claim 1 or 2, wherein the interval measuring means is a position sensor that detects a position of the gas blowing means.   The distance measuring means includes a light projecting means provided on one side sandwiching the outer peripheral surface of the tape roll and the tip of the gas spraying means, and the outer peripheral surface of the tape roll and the tip of the gas spraying means. The tape winding device according to claim 1 or 2, which is a combination with a light receiving means provided on the other side of the tape.   The tape winding device according to claim 3, further comprising an interlock unit that stops the operation of the apparatus when the vibration of the gas blowing unit detected by the position sensor becomes equal to or greater than a predetermined value.

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