JP2018111573A - Automatic tape winding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a lap width between an adhesive tapes wound around a winding object from being insufficient.SOLUTION: An automatic tape winding device M includes: a movable member 10 movable in an axial direction of a corrugated tube T; a rotating member 14 provided on the movable member 10 and rotating about the axis of the corrugated tube T; a sensor 20; and control means 23. The rotating member 14 is provided with an accommodating portion 15 for accommodating the corrugated tube T and a tape holding portion 17 that rotatably holds a roll portion 33 of an adhesive tape 30 at a position eccentric from the corrugated tube T. The sensor 20 detects a width dimension of a lead-out portion 34 which is pulled out from the roll portion 33 of the adhesive tape 30 and is under tension with the corrugated tube T. The control means 23 controls the moving speed of the movable member 10 based on a detection signal from the sensor 20.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an automatic tape winding apparatus.

  Patent Document 1 discloses an automatic tape winding device for spirally winding an adhesive tape around the outer periphery of an electric wire. The electric wire is accommodated in the slit of the rotating disk member, and the roll portion of the adhesive tape is rotatably held at a position eccentric to the electric wire in the rotating disk member. The tip part of the part pulled out from the roll part of the adhesive tape is adhered to the outer periphery of the electric wire. When the rotating disk member rotates around the electric wire while sliding parallel to the axis of the electric wire, the roll of the adhesive tape rotates planetarily around the electric wire, and the adhesive tape drawn from the roll is spiraled around the outer circumference of the electric wire. Wrapped in a shape.

JP2015-210905A

  When the adhesive tape is spirally wound around the outer periphery of the electric wire, the side edges of the adhesive tape are wrapped to prevent a part of the electric wire from being exposed from the gap between the adhesive tapes. In order to reliably prevent the exposure of the electric wires, it is necessary to accurately manage the wrap size between the adhesive tapes.

  However, the drawn-out part drawn from the roll part of the adhesive tape is always pulled in the length direction between the roll part and the electric wire in the winding process. Therefore, the drawer portion is elastically extended in the drawer direction due to the tension, and there is a concern that the width of the drawer portion becomes narrow accordingly. Factors that reduce the width of the drawer include the temperature in the usage environment, the dimensional tolerance of the adhesive tape as a product, and variations in the adhesive strength of the adhesive tape. When the lead portion is wound around the electric wire in a narrow state, the wrap width between the adhesive tapes is insufficient.

  This invention is completed based on the above situations, Comprising: It aims at preventing lack of the wrap width between the adhesive tapes wound helically.

The present invention
An automatic tape winding device for winding an adhesive tape on the outer periphery of a winding object in a spiral manner so that side edges of the adhesive tape wrap around each other,
A movable member movable in the axial direction of the winding object;
A rotating member provided on the movable member and rotatable about the axis of the winding object;
An accommodating portion that is provided on the rotating member and accommodates the wound object;
A tape holding portion provided on the rotating member and rotatably holding the roll portion of the adhesive tape at a position eccentric from the winding object;
A sensor that detects a width dimension of a drawing portion that is drawn from the roll portion of the adhesive tape and receives a tension with the winding object;
And a control means for controlling a moving speed of the movable member based on a detection signal from the sensor.

  When the width | variety of the drawer | drawing-out part of an adhesive tape is narrow, a control means reduces the moving speed of a movable member based on the detection signal from a sensor. Thereby, the lap | wrap dimension of the side edge parts of an adhesive tape is kept at an appropriate dimension.

The side view showing the state just before winding an adhesive tape around a corrugated tube in the automatic tape winding apparatus of Example 1. 1 is a side view showing a state where the rotating member is eccentrically rotated by 120 ° from the state of FIG. 1 in the process of winding the adhesive tape around the corrugated tube. 2 is a side view showing a state where the rotating member is eccentrically rotated by 120 ° from the state shown in FIG. 2 in the process of winding the adhesive tape around the corrugated tube. Front view of automatic tape winding device Flow chart showing control method by control means Flow chart showing another control method by control means Block diagram showing configuration of automatic tape winding device

  In the present invention, the control means may control the rotational speed of the rotating member based on a detection signal from the sensor. According to this structure, when the width | variety of the drawer | drawing-out part of an adhesive tape is narrow, the drawer | drawing-out part which became narrow can be recovered to a wide state by reducing the rotational speed of a rotation member. If the drawer portion is restored to the wide state, a predetermined lap width can be secured without reducing the moving speed of the movable member.

  According to the present invention, the winding object can be elastically deformed such that its axis is curved, and the control means is responsive to an inclination angle of the winding object with respect to a moving direction of the movable member. The moving speed of the movable member may be controlled. According to this configuration, even when the wound object is curved and deformed, the wrap dimension of the adhesive tape can be maintained at an appropriate dimension.

<Example 1>
A first embodiment of the present invention will be described below with reference to FIGS. In the following description, the left and right directions in FIGS. For the up and down directions, the directions appearing in FIGS. For the left and right directions, the directions shown in FIG. 4 are defined as left and right as they are.

  The automatic tape winding apparatus M of the present embodiment is configured so that the adhesive tape 30 having a certain width is spirally wrapped around the outer periphery of the corrugated tube T as an elongated winding object and the side edges 31 of the adhesive tape 30 are wrapped together. It is a device for winding around. As shown in FIG. 4, both ends of one region of the corrugated tube T where the adhesive tape 30 is continuously wound are fixed in a state in which movement is restricted by a pair of holders H. The region between the pair of holders in the corrugated tube T is held in a state where the axis (length direction) faces in the left-right direction, but can be elastically deformed in such a manner that the axis is curved. Yes.

  The pressure-sensitive adhesive tape 30 is made of an elastic material, and a portion of the pressure-sensitive adhesive tape 30 that is wound around the core member 32 is an annular roll portion 33. The leading end portion of the drawing portion 34 drawn from the roll portion 33 in the adhesive tape 30 is adhered to the outer periphery of the corrugated tube T. In the process of winding the adhesive tape 30 around the outer periphery of the corrugated tube T, the drawing portion 34 is in a state of being tensioned in the length direction between the corrugated tube T and the roll portion 33. When the drawing portion 34 is in a tension state, the drawing portion 34 elastically extends in the length direction, and accordingly, the width dimension of the adhesive tape 30 becomes small.

  The automatic tape winding device M includes a movable member 10, a rotating member 14, a slide mechanism 18, a rotation drive mechanism 19, a sensor 20, and a control unit 23.

  As shown in FIGS. 1 to 3, the movable member 10 includes an arm portion 11 and a main body portion 12. The arm portion 11 has a base end attached to a drive mechanism (not shown), and has a form that cantilevered forward from the drive mechanism. The main body 12 has a ring shape as a whole in a side view, and a part (front end) in the circumferential direction of the main body 12 is a notch 13. The notch 13 is arranged at the front end of the main body 12, and the inside of the main body 12 is opened forward in the notch 13. The main body portion 12 is integrally connected to the distal end portion (front end portion) of the arm portion 11.

  The rotary member 14 has a substantially circular shape in a side view, and is accommodated in the main body 12 so as to be relatively rotatable. The rotating member 14 is provided with an accommodating portion 15 for accommodating the corrugated tube T. The accommodating portion 15 has an accommodating concave portion 16 that is disposed at a position eccentric in the radial direction from the center of the rotating member 14 and that is open to the outer peripheral edge of the rotating member 14. The rotary member 14 is provided with a circular tape holding portion 17 that holds the roll portion 33 of the adhesive tape 30 so as to be relatively rotatable. The tape holding part 17 is arranged at a position eccentric from the center of the rotating member 14 to the side opposite to the accommodating part 15.

  The main body 12 is moved in the axial direction of the corrugated tube T by a slide mechanism 18 (detailed structure is omitted). Further, the main body 12 is rotated eccentrically about the corrugated tube T in the accommodating portion 15 by a rotation drive mechanism 19 (detailed structure is omitted) without largely changing the orientation in the side view. As the main body part 12 rotates eccentrically, the rotating member 14 pushed by the inner peripheral surface of the main body part 12 rotates about the corrugated tube T, and the roll part 33 held by the tape holding part 17 is moved. Then, the corrugated tube T is turned about the center.

  When the adhesive tape 30 is wound around the outer periphery of the corrugated tube T, as shown in FIG. 1, the main body portion 12 is moved rearward with the housing portion 15 aligned with the notch portion 13 of the main body portion 12 and opened forward. Then, the corrugated tube T is accommodated in the accommodating portion 15. In the accommodating part 15, it waits so that the front-end | tip part of the drawer | drawing-out part 34 pulled out from the roll part 33 among the adhesive tapes 30 may approach the outer periphery of the corrugated tube T, and may oppose.

  From this state, the main body 12 is rotated eccentrically as shown in FIGS. 2 and 3 while moving in the axial direction of the corrugated tube T. As the main body 12 rotates eccentrically, the rotating member 14 rotates eccentrically, and the lead-out portion 34 is spirally wound around the outer periphery of the corrugated tube T. At this time, as shown in FIG. 4, the side edges of the lead-out portions 34 are overlapped (so that the peripheral surfaces of the lead-out portions 34 overlap). In the present embodiment, the width dimension of one wrap region (wrap width W) is 1/3 of the entire width of the extraction portion 34, and the width dimension of a region that does not wrap at all is also 1/3 of the total width of the extraction portion 34.

  In the process of winding the adhesive tape 30 around the corrugated tube T, the drawn-out portion 34 of the adhesive tape 30 drawn from the roll portion 33 is always pulled in the length direction between the roll portion 33 and the corrugated tube T. Therefore, the drawer part 34 is elastically extended in the drawer direction by the tension, and the width of the drawer part 34 is reduced accordingly. Factors that cause the width of the lead-out portion 34 to be narrow include the temperature in the usage environment, the dimensional tolerance of the adhesive tape 30 as a product, and the variation in the adhesive strength of the adhesive tape 30. When the drawer part 34 is wound around the corrugated tube T in a narrow state, the wrap width W between the adhesive tapes 30 is insufficient.

  In view of this point, the automatic tape winding apparatus M according to the present embodiment includes a sensor 20 that detects the width dimension of the drawer portion 34, and a control unit that controls the slide mechanism 18 and the rotation drive mechanism 19 based on the detection signal of the sensor 20. 23. The sensor 20 includes a light emitting unit 21 and a light receiving unit 22. The light emitting unit 21 is disposed at a position above the notch 13 on the left side surface of the main body unit 12. The right side surface of 12 is arranged at a position below the notch 13. A lead-out portion 34 is located between the light emitting portion 21 and the light receiving portion 22.

  The light emitting unit 21 emits a plurality of detection lights (for example, laser beams) in parallel with the width direction of the extraction unit 34, and the light receiving unit 22 receives the plurality of detection lights. The sensor 20 detects the width dimension of the lead-out part 34 based on the number of detection lights received by the light receiving part 22 every time the rotating member 14 rotates and reaches the orientation and position shown in FIG. Is output. A detection signal from the sensor 20 is input to the control means 23.

  In the control means 23, a preset threshold value is compared with a detection signal from the sensor 20. When the width dimension value of the detection signal is smaller than the threshold value or larger than the threshold value, the control means 23 determines that the width dimension of the lead-out portion 34 is within an appropriate range, and the moving speed of the movable member 10 in the axial direction is appropriate. The slide mechanism 18 is controlled so as to achieve a speed, and the rotational drive mechanism 19 is controlled so that the eccentric rotational speeds of the main body 12 and the rotating member 14 become appropriate speeds.

  When the width dimension value of the detection signal is smaller than the threshold value, the control unit 23 determines that the width dimension of the lead-out portion 34 is smaller than the proper range, and the moving speed of the movable member 10 in the axial direction is lower than the proper speed. Thus, the slide mechanism 18 is controlled. Moreover, the rotational drive mechanism 19 may be controlled so that the eccentric rotational speed of the main-body part 12 and the rotation member 14 may become lower than an appropriate speed as needed.

  Next, two control methods by the control means 23 will be described based on the flowcharts of FIGS. In the first control method shown in FIG. 5, first, it is determined whether or not the width dimension of the lead-out portion 34 of the adhesive tape 30 is within an appropriate range (step S100), and the width dimension of the lead-out portion 34 is within the proper range. If this is the case, the movable member 10 is moved at the standard speed in the axial direction of the corrugated tube T, and the rotating member 14 is eccentrically rotated at the standard speed (step S101). Here, the “standard speed” means that when the width dimension of the lead-out portion 34 is within an appropriate range, the wrap width W between the adhesive tapes 30 is a predetermined dimension (in this embodiment, the entire width of the adhesive tape 30). 1/3 dimension).

  While the movable member 10 is moved in the axial direction at the standard speed and the rotating member 14 is eccentrically rotated at the standard speed and the adhesive tape 30 is wound around the corrugated tube T, the width dimension of the drawer portion 34 is continuously detected (step S102). ). When the width dimension of the drawer | drawing-out part 34 is in an appropriate range, it is detected whether the movable member 10 reached | attained the end point of the movement path | route of an axial direction (step S103). When the movable member 10 has not reached the end point of the movement path, the winding of the adhesive tape 30 around the corrugated tube T and the detection of the width dimension of the drawing portion 34 are continued (step S102). When the movable member 10 reaches the end point of the movement path, the movement of the movable member 10 and the eccentric rotation of the rotating member 14 are stopped, and the winding of the adhesive tape 30 around the corrugated tube T is completed.

  Further, when the width dimension of the lead-out portion 34 becomes smaller than the appropriate range while the adhesive tape 30 is wound around the corrugated tube T at the standard speed, the moving speed of the movable member 10 in the axial direction is made higher than the standard speed. While switching to a low speed, the eccentric rotation speed of the rotating member 14 is switched to a lower speed than the standard speed (step S104), and the winding of the adhesive tape 30 around the corrugated tube T is continued.

  By reducing the moving speed of the movable member 10, the wrap width W between the adhesive tapes 30 increases. At the same time, by reducing the eccentric rotation speed of the rotating member 14, the tension applied to the drawing portion 34 is reduced, so that the width dimension of the drawing portion 34 is increased. Thereby, the wrap width W between the adhesive tapes 30 becomes an appropriate dimension.

  While the adhesive tape 30 is being wound, the width dimension of the drawer portion 34 is detected (step S105). If the width dimension of the drawer portion 34 is within an appropriate range, the moving speed of the movable member 10 in the axial direction and the rotating member are detected. The eccentric rotational speed of 14 is kept in a low speed state. When the width dimension of the drawer | drawing-out part 34 becomes larger than the appropriate range, the moving speed to the axial direction of the movable member 10 and the eccentric rotational speed of the rotating member 14 are returned to a standard speed (step S106).

  When the moving speed of the movable member 10 is increased to the standard speed, the wrap width W between the adhesive tapes 30 is reduced as compared with the case of the low speed. At the same time, when the eccentric rotation speed of the rotating member 14 is increased to the standard speed, the tension applied to the drawing portion 34 is increased as compared with the low speed case, so that the width dimension of the drawing portion 34 is reduced as compared with the low speed case. Thereby, the wrap width W between the adhesive tapes 30 is a dimension within an appropriate range.

  Even after the moving speed of the movable member 10 and the eccentric rotational speed of the rotating member 14 are returned to the standard speed, the width dimension of the drawer portion 34 is detected (step S107), and the width dimension of the drawer portion 34 becomes smaller than the appropriate range. If this happens, the moving speed of the movable member 10 and the eccentric rotational speed of the rotating member 14 are again lowered (step S104). If the width dimension of the lead-out portion 34 remains within the appropriate range, as described above, it is detected whether or not the movable member 10 has reached the end point of the movement path in the axial direction (step S103).

  In the second control method shown in FIG. 6, first, it is determined whether or not the width dimension of the drawing portion 34 of the adhesive tape 30 is within an appropriate range (step S200), and the width dimension of the drawing portion 34 is within the appropriate range. If it is, the movable member 10 is moved at the standard speed in the axial direction of the corrugated tube T, and the rotating member 14 is eccentrically rotated at the standard speed (step S201).

  While the movable member 10 is moved in the axial direction at the standard speed and the rotating member 14 is eccentrically rotated at the standard speed and the adhesive tape 30 is wound around the corrugated tube T, the width dimension of the drawer portion 34 is continuously detected (step S202). ). When the width dimension of the drawer | drawing-out part 34 is in an appropriate range, it is detected whether the movable member 10 reached | attained the end point of the movement path | route of an axial direction (step S203). When the movable member 10 reaches the end point of the movement path, the movement of the movable member 10 and the eccentric rotation of the rotating member 14 are stopped, and the winding of the adhesive tape 30 around the corrugated tube T is completed.

  Further, when the width of the drawer portion 34 becomes smaller than the appropriate range while the adhesive tape 30 is wound around the corrugated tube T at the standard speed, the eccentric rotational speed of the rotating member 14 remains at the standard speed and is movable. The moving speed of the member 10 in the axial direction is switched to a lower speed than the standard speed (step S204), and the winding of the adhesive tape 30 around the corrugated tube T is continued.

  Since the eccentric rotational speed of the rotating member 14 remains at the standard speed, the tension applied to the drawer portion 34 does not change, and therefore the width dimension of the drawer portion 34 does not increase or decrease. And by making the moving speed of the movable member 10 low, the wrap width W between the adhesive tapes 30 is kept at a regular dimension. Thereafter, it is detected whether or not the movable member 10 has reached the end point of the movement path in the axial direction (step S203).

  As described above, the automatic tape winding device M of the present embodiment includes the movable member 10 that can move in the axial direction of the corrugated tube T, the rotating member 14, the sensor 20, and the control means 23. The rotating member 14 is provided on the movable member 10 and is rotatable about the axis of the corrugated tube T as a substantial center. The rotating member 14 is provided with an accommodating portion 15 that accommodates the corrugated tube T and a tape holding portion 17. The tape holding part 17 rotatably holds the roll part 33 of the adhesive tape 30 at a position eccentric from the corrugated tube T.

  The sensor 20 detects the width dimension of the lead-out portion 34 that is pulled out from the roll portion 33 of the adhesive tape 30 and receives tension with the corrugated tube T. The control means 23 controls the moving speed of the movable member 10 in the axial direction based on the detection signal from the sensor 20. According to this configuration, when the width of the drawing portion 34 of the adhesive tape 30 is narrow, the control means 23 reduces the moving speed of the movable member 10 based on the detection signal from the sensor 20. Thereby, the lap dimension of the side edge parts of the adhesive tape 30 is maintained at an appropriate dimension.

  The control means 23 also controls the eccentric rotational speed of the rotating member 14 based on the detection signal from the sensor 20. According to this structure, when the width | variety of the drawer | drawing-out part 34 of the adhesive tape 30 is narrow, the drawer | drawing-out part 34 which became narrow can be recovered to a wide state by reducing the rotational speed of the rotating member 14. FIG. If the drawer portion 34 is restored to the wide state, the predetermined wrap width W can be secured without reducing the moving speed of the movable member 10.

  Further, the corrugated tube T can be elastically deformed so as to bend its axis, but the control means 23 is arranged so that the inclination angle of the corrugated tube T with respect to the moving direction of the movable member 10 (the axial direction of the corrugated tube T). Accordingly, the moving speed of the movable member 10 is controlled. According to this configuration, even if the corrugated tube T is curved and deformed, the lap dimension of the adhesive tape 30 can be maintained at an appropriate dimension.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.
(1) In the above embodiment, the rotational speed of the rotating member is reduced when the width of the drawn portion of the adhesive tape is narrow. However, when the width of the drawn portion of the adhesive tape is narrow, the rotational speed of the rotating member is reduced. May remain constant.
(2) In the above-described embodiment, the winding object can be deformed so as to bend the axis (corrugated tube), but the winding object may be a metal pipe having high rigidity. .

M ... Automatic tape winding device T ... Corrugated tube (winding object)
DESCRIPTION OF SYMBOLS 10 ... Movable member 14 ... Rotating member 15 ... Storage part 17 ... Tape holding part 20 ... Sensor 23 ... Control means 30 ... Adhesive tape 31 ... Side edge part of adhesive tape 33 ... Roll part 34 ... Pull-out part

Claims (3)

An automatic tape winding device for winding an adhesive tape on the outer periphery of a winding object in a spiral manner so that side edges of the adhesive tape wrap around each other,
A movable member movable in the axial direction of the winding object;
A rotating member provided on the movable member and rotatable about the axis of the winding object;
An accommodating portion that is provided on the rotating member and accommodates the wound object;
A tape holding portion provided on the rotating member and rotatably holding the roll portion of the adhesive tape at a position eccentric from the winding object;
A sensor that detects a width dimension of a drawing portion that is drawn from the roll portion of the adhesive tape and receives a tension with the winding object;
An automatic tape winding apparatus comprising: a control unit that controls a moving speed of the movable member based on a detection signal from the sensor.   2. The automatic tape winding device according to claim 1, wherein the control means controls the rotational speed of the rotating member based on a detection signal from the sensor. The wound object can cause elastic deformation that curves its axis,
The said control means controls the moving speed of the said movable member according to the inclination angle of the said winding target object with respect to the moving direction of the said movable member, The Claim 1 or Claim 2 characterized by the above-mentioned. The automatic tape winding device described.

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