JP2004175557A - Reel rotating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively prevent damages of a reel when holding the reel, to hold the reel without any play, and to hold the reel irrespective of the shape of a center hole of rotation of the reel. <P>SOLUTION: A rotating device 10 has a holding unit 13 having a main drive unit 11 and a driven unit 12 capable of holding a pair of flange-shaped members R4 to form a reel R therebetween. The main drive unit 11 is brought into contact with one flange-shaped member R4 to give the rotational force to the reel R. The driven unit 12 is brought into contact with the other flange-shaped member R4, and attachable/detachable to/from the main drive unit 11. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a reel rotating device, and more particularly, to a reel rotating device capable of effectively preventing damage to a reel when holding the reel.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a tape winding device that automatically winds a carrier tape on which chip-type electronic components are mounted on a reel and automatically replaces the reel is used. This winding device has a rotating shaft capable of holding a reel, and by mounting and rotating the reel on the rotating shaft, the carrier tape sequentially fed can be wound on the reel. Here, as the structure of the rotating shaft and the reel, the type shown in FIG. 6 is known.
[0003]
In the figure, a rotating shaft 80 is provided with a shaft portion 81 formed in a round bar shape whose tip becomes gradually thinner, and is provided at intervals of 120 degrees in a circumferential direction of the shaft portion 81 and a shaft portion via an elastic member (not shown). And three blade members 82 provided so as to be able to protrude and retract from the outer peripheral surface of the blade 81. The reel 83 has a cylindrical rotation center hole 84 through which the shaft portion 81 can be inserted, and three rotation center holes 84 formed on the inner side of the rotation center hole 84 and having a shape corresponding to each of the blade members 82. And a groove-shaped receiving portion 85.
[0004]
In such a configuration, when winding a belt-shaped carrier tape (not shown) around the reel 83, first, the reel 83 is transferred by a predetermined arm member, and the shaft portion 81 is inserted into the rotation center hole 84. At this time, if the positions of the blade member 82 and the receiving portion 85 do not match, the blade member 82 is buried in the shaft portion 81 against the elasticity of the elastic member. From this state, the reel 83 and the rotating shaft 80 are relatively rotated to match the positions of the blade member 82 and the receiving portion 85, so that the blade member 82 returns to the initial position and is received in the receiving portion 85. 83 is held on the rotating shaft 80. After positioning the reel 83 at a predetermined angle, in order to fix the lead end of the carrier tape to the reel 83, the lead end was inserted into a groove 83A formed on the reel 83 via a delivery device (not shown). Thereafter, by rotating the rotation shaft 80, the tape is wound on the reel 83.
[0005]
[Patent Document 1]
JP-A-9-314968 [Patent Document 2]
JP-A-10-148889 [Patent Document 3]
JP-A-11-208049
[Problems to be solved by the invention]
However, in such a configuration of the rotating shaft 80, when the processing accuracy of the reel 83 is low, that is, when the formation position of the receiving portion 85 is shifted or the width of the receiving portion 85 is narrow, the shaft portion 81 is rotated. A disadvantage arises in that it cannot be inserted into the center hole 84. Therefore, in forming the rotation center hole 84 and the receiving portion 85, it is sufficient to provide sufficient play in these shapes, but in this case, the reel 83 rattles, and the positioning of the reel 83 becomes difficult. This leads to inconvenience that it becomes difficult to insert the lead end of the tape into the groove 83A.
[0007]
Further, when the reel 83 is set on the rotation shaft 80, the blade member 82 is almost always inserted so as to scratch the inner peripheral surface of the rotation center hole 84, so that the rotation center hole 84 is easily damaged. In particular, when a paper reel is used, there is a problem that the rotation center hole 84 is broken. In addition, in order to set the reel 83 on the rotating shaft 80 having the blade member 82, it is necessary to prepare a reel 83 which is a dedicated product corresponding to the shape of the blade member 82, which is not convenient.
[0008]
By the way, Patent Documents 1 to 3 disclose configurations in which a rotation shaft is inserted into a rotation center hole of a reel. In these documents, the rotating shaft is provided with a projection protruding from the outer peripheral surface, and the reel is held on the rotating shaft by receiving the projection in a groove-shaped notch formed in the rotation center hole of the reel. It has become so.
[0009]
However, in Patent Documents 1 to 3, in order to maintain the function of holding the reel by the rotating shaft, the material of the reel must have a hardness that can withstand the force acting between the projection and the notch. For this reason, when the reel is formed of a relatively soft material such as paper, if a strong rotational force acts on the reel, the notch may be broken by a large amount of stress generated around the notch.
[0010]
[Object of the invention]
The present invention has been devised in view of such inconvenience, and an object of the present invention is to hold a reel in the middle so as to prevent the reel from being damaged, and to reduce the rotation center of the reel. An object of the present invention is to provide a reel rotating device that can hold the reel firmly regardless of the hole shape and has improved versatility.
[0011]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is a reel rotating device including a holding unit that holds a reel that can take up or unwind a tape,
The holding portion is provided such that a pair of flange-like members forming the reel are sandwiched in the middle so that a rotational force can be applied to the reel. According to such a configuration, the reel can be held without inserting the shaft member into the rotation center hole of the reel as in the conventional example. As a result, it is possible to prevent the rattling of the reel and accurately position the reel, so that even when the lead end of the tape is inserted into the groove formed on the reel, this can be stably performed. It is possible to do. In addition, it is possible to eliminate the necessity of using a reel which is a dedicated product, and to provide a versatile rotating device.
[0012]
In the present invention, the holding portion includes a driving portion that contacts the outside of one of the flange-shaped members, and a driven portion that contacts the outside of the other flange-shaped member, and the driving portion and the driven portion can be separated from and approached to each other. It is preferable to adopt a configuration of being provided in According to such a configuration, the main driving portion and the driven portion are in contact with the outside of the flange-shaped member, so that the rotation center hole can be prevented from being damaged when the reel is set and rotated.
[0013]
In addition, a configuration may be adopted in which the main driving portion and the driven portion have a non-slip structure at a contact portion with the reel. With such a configuration, the reel can be firmly held, and the rotational force of the driving portion can be stably applied to the reel.
[0014]
Furthermore, a configuration is also preferably employed in which the holding portion includes a positioning shaft portion provided on the axis of the cylindrical rotation center hole of the reel and insertable into the center hole. In such a configuration, the positioning of the reel can be performed without difficulty, and the rotation center position of the reel can be more accurately maintained.
[0015]
Note that terms indicating directions or positions in this specification are used with reference to FIG. 1 unless otherwise specified.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
FIG. 1 is a schematic side sectional view of a reel rotating device in a tape winding device to which the present invention is applied. In this figure, a rotating device 10 includes a holding unit 13 including a driving unit 11 and a driven unit 12 for holding the reel R in a middle position, a driving device 15 for rotating the driving unit 11, and a cylindrical rotation of the reel R. And a positioning shaft portion 16 provided on the axis of the center hole R1.
[0018]
As shown in FIGS. 2 (A) and 2 (B), the reel R is connected to a disc-shaped portion R2 continuously provided on the outer periphery of the cylindrical rotation center hole R1, and is connected to an outer periphery of the disc-shaped portion R2. It comprises a cylindrical hub portion R3, and a pair of flange-shaped members R4, R4 provided continuously on both sides of the hub portion R3 in the axial direction (the direction perpendicular to the paper surface of FIG. 2B). The disc-shaped portion R2 and the hub portion R3 are formed at intervals of 120 ° in the circumferential direction, and have a groove R5 extending toward the cylindrical rotation center hole R1, into which a lead end of a tape (not shown) is inserted. It is supposed to be. A round hole R6 is formed in the lower right region in FIG. 2B in the plane of the disc-shaped portion R2.
[0019]
As shown in FIG. 1, the driving unit 11 is connected to a driving rotor 19 disposed outside (left side) of a side plate 18 forming a housing of the tape winding device, and is connected to a right side of the driving rotor 19. A hollow cylindrical body 20 that extends through the side plate 18 in a horizontal direction, and is disposed inside (right side) of the side plate 18 so that the body 20 is inserted into the body 20; And a stepped support cylinder 21 having bearings 21A and 21B. As shown in FIG. 3, the driving rotor 19 includes a concave portion 23 which is open to the side of the contact surface 19A with the reel R. The positioning shaft portion 16 is provided on the bottom side (right side in FIG. 3) of the concave portion 23. A supporting bearing 24 is provided. A non-slip member 25 made of silicone rubber or the like is attached to the contact surface 19A.
[0020]
As shown in FIG. 1, the driven portion 12 includes a driven rotor 27 having a contact surface 27A with the reel R, a receiving plate 29 connected to the driven rotor 27 via a bearing 28, and a receiving plate 29. And a holding cylinder 30 which is connected to the driven rotor 27 and moves the driven rotor 27 and the receiving plate 29 in the left-right direction. A non-slip member 32 made of silicone rubber or the like is affixed to the contact surface 27A of the driven rotor 27 similarly to the contact surface 19A of the driven rotor 19. The driven rotor 27 and the receiving plate 29 are provided with openings 27B and 29A at the center in the plane, respectively, and the rod 33A of the positioning cylinder 33 and the tip of the positioning shaft 16 are provided in the openings 27B and 29A. Each side can be inserted. Here, the holding cylinder 30 and the positioning cylinder 33 are supported via an arm member 34 having an L-shape in a side view, and the arm member 34 is centered on the lower right end side in FIG. It is provided rotatably.
[0021]
The driving device 15 includes a support plate 37 supported by the side plate 18 via columns 36 positioned vertically, a motor 38 attached to the left side of the support plate 37 at a lower position in FIG. 38, a first pulley 39 fixed to the output shaft 38A, a second pulley 40 provided on the outer periphery of the body 20, and a first pulley 39, which is wound around the first and second pulleys 39, 40. The body portion 20 and the driven rotor 19 are rotatable by rotating the motor 38.
[0022]
The positioning shaft portion 16 penetrates through the inside of the body portion 20, and has a hollow cylindrical shaft body 43 having a length protruding from the driving portion 11 at both ends, and is connected to an outer periphery on the left end side of the shaft body 43. And a flange portion 44 located in the concave portion 23 and in contact with the bearing 24. One end side (left end side) of the shaft main body 43 is formed in a tapered shape, and is provided so as to be positioned in the opening 27B of the driven rotor 27 while holding the reel R. On the other hand, the other end (right end) of the shaft main body 43 is non-rotatably fixed to an auxiliary support plate 45 located on the right side of the support plate 37.
[0023]
As shown in FIGS. 3 and 4, a plate member 47 having a substantially oval planar shape is attached to the left side of the flange portion 44 in FIG. 3. , A sensor 48 capable of detecting the rotation angle of the reel R is attached. A lead wire 49 extending from the sensor 48 passes through a small hole 44A formed in a lower region of the flange portion 44 and the inside of the shaft main body 43, and is connected to a control device (not shown).
[0024]
In FIG. 1, reference numeral 51 denotes an extruding plate for the reel R. The extruding plate 51 is supported by a pair of upper and lower extrusion cylinders 52 attached to the side plate 18 so as to be movable in the left and right directions. ing.
[0025]
Next, the overall operation in the embodiment will be described.
[0026]
Here, after the cylindrical rotation center hole R1 of the reel R is set on the rod 33A of the positioning cylinder 33 from a transfer device (not shown), the arm member 34 is set upright as shown in FIG. It is assumed that the shape portion R4 is opposed to the driving rotor 19 side. From this state, when the reel R is held on the holding portion 13, first, the rod 33 </ b> A is moved to the extent that a slight gap is formed between the rod 33 </ b> A and the tip of the positioning shaft portion 16 (the position indicated by the two-dot chain line in FIG. Let go forward. Next, the clamping cylinder 30 is operated to move the driven rotor 27 rightward, and as shown in FIG. 1, the positioning shaft 16 is inserted into the cylindrical rotation center hole R1 of the reel R, and The shape portion R4 is pressed against the contact surface 19A of the driving rotor 19. As a result, the reel R is sandwiched between the driving rotor 19 and the driven rotor 27. In this state, by rotating the body 20 and the driving rotor 19 by the driving device 15, a rotational force can be applied to the reel R. The driven rotor 27 also rotates while pressing the reel R against the driven rotor 19.
[0027]
Here, when starting to wind a tape (not shown) on the reel R, first, the reel R is rotated several times. At this time, the sensor 48 detects the position of the round hole R6 of the reel R and stops the rotation of the reel R with the reel at a fixed rotation angle. Then, the lead end of the tape is inserted into the groove R5 of the reel R via an unillustrated feeding device, and the reel R is rotated in this state, whereby the lead end is held in the groove R5. .
[0028]
When the reel R finishes winding the tape, the rod 33A of the positioning cylinder 33 approaches the positioning shaft 16 again, and the driven rotor 27 separates from the reel R. Then, the pushing plate 51 moves leftward in FIG. 1 to insert the cylindrical rotation center hole R1 of the reel R into the rod 33A, rotate the arm member 34, and mount the reel R on the transfer device.
[0029]
Therefore, according to such an embodiment, when the reel R is held, the driven rotor 19 and the driven rotor 27 come into surface contact with the outer surface of the flange portion R4, so that the load applied to the reel R is reduced as much as possible. Thus, damage to the reel R can be effectively prevented. Thereby, even if the reel R is made of paper, it can be held without any trouble, and the degree of freedom of the material for forming the reel R can be increased.
[0030]
The best configuration and method for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this.
That is, although the present invention has been particularly shown and described with particular reference to particular embodiments, it should be understood that the invention may be practiced without departing from the spirit and scope of the invention. On the other hand, those skilled in the art can make various modifications in shape, quantity, position or direction, and other detailed configurations.
Therefore, the description of limiting the shapes and the like disclosed above is illustratively described to facilitate understanding of the present invention, and does not limit the present invention. The description of the names of members excluding some or all of the limitations is included in the present invention.
For example, the reel R has the same configuration as that of the conventional example for convenience of description, but various design changes are possible as long as the main driving unit 11 and the driven unit 12 can sandwich the reel R. However, the provision of the groove R5 and the round hole R6 as in the above embodiment is advantageous in that a configuration capable of automatically holding the lead end of the tape can be employed.
Further, in the above-described embodiment, only the driven rotor 27 is configured to be movable in the left-right direction. However, only the driven rotor 19 or both the driven rotor 27 and the driven rotor 19 are configured to be movable left and right. An accessible configuration may be used. Further, the rotating device 10 can be applied to a reel for feeding out a tape.
[0031]
【The invention's effect】
As described above, according to the present invention, since the holding portion is provided so as to be able to apply a rotational force to the reel by sandwiching the flange-like member of the reel in the middle, the shaft is provided in the rotation center hole of the reel as in the related art. The reel can be securely held without inserting a member, and rattling of the reel can be suppressed. In addition, versatility that the reel can be held regardless of the shape of the rotation center axis of the reel can be obtained.
[0032]
In addition, since the driving part and the driven part that constitute the holding part are in contact with the outside of the flange-shaped member and are provided so as to be separated from and approachable to each other, the load applied to the reel when holding the reel is reduced. Thus, it is possible to avoid occurrence of damage to the reel.
[0033]
Further, in the case where the contact portions of the driving portion and the driven portion with the reel have a non-slip structure, the rotation force of the driving portion can be stably applied to the reel by increasing the holding force of the reel.
[0034]
In addition, since the holding portion has the positioning shaft portion that can be inserted into the cylindrical rotation center hole of the reel, when holding the reel, the reel can be easily positioned and the rotation center position of the reel can be easily adjusted. Can be accurately maintained.
[Brief description of the drawings]
FIG. 1 is a schematic side sectional view showing an embodiment of a reel rotating device according to the present invention.
2A is a schematic perspective view of a reel, and FIG. 2B is a front view of FIG.
FIG. 3 is an enlarged sectional view of a main part of FIG. 1;
FIG. 4 is a front view of FIG. 1 from which a driven portion is omitted.
FIG. 5 is a sectional view similar to FIG. 1, but showing a state immediately before holding the reel;
FIG. 6 is a schematic perspective view showing a reel according to a conventional example and a rotating shaft holding the reel.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Rotating device 11 Main drive part 12 Follower part 13 Holding part 16 Positioning shaft part 19A Contact surface 25 Non-slip member 27A Contact surface R Reel R1 Cylindrical rotation center hole R4 Flange member

Claims (4)

A reel rotating device including a holding unit that holds a reel that can take up or unwind a tape,
The reel rotating device according to claim 1, wherein the holding portion is provided so as to apply a rotational force to the reel by sandwiching a pair of flange-like members forming the reel in the middle. The holding portion includes a driving portion that contacts the outside of one flange-like member, and a driven portion that contacts the outside of the other flange-like member, and the driving portion and the driven portion are provided so as to be separated from and approachable to each other. 2. The reel rotating device according to claim 1, wherein: 3. The reel rotating device according to claim 2, wherein a contact portion of the main driving portion and the driven portion with the reel has a non-slip structure. 4. The reel rotation according to claim 1, wherein the holding portion includes a positioning shaft portion provided on an axis of a cylindrical rotation center hole of the reel and insertable into the center hole. apparatus.

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