JP2008191511A - Guide tape attaching device for endless belt - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a guide tape attaching device for an endless belt, the device being designed so that one end face of guide tape can be attached accurately to the endless belt straight in its circumferential direction. <P>SOLUTION: The guide tape attaching device includes a belt-holding mechanism 2 for holding the endless belt B; a tape-pressing mechanism 3, having a tape pressing part 41 that continuously presses guide tape T to the internal peripheral face of the end of the endless belt B, from the leading end to the trailing end of the guide tape T; a rotating mechanism 5 for rotating the tape pressing mechanism 3 along the internal peripheral face of the endless belt B, thereby attaching the guide tape T. The tape-pressing part 41 has a pressing face part 53a, having a pressing face; a flange part 53b projecting from the pressing face part 53a and used to position one of the end faces of the guide tape T, which serves as a reference for preventing meandering; a disk part 54a for sideways pulling over the guide tape to a positioning guide part; and a coil spring 55 for pressing the disk part 54a to the positioning guide part. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an endless belt guide tape attaching apparatus for attaching a guide tape to an inner peripheral surface of an endless belt such as a photosensitive belt or a transfer belt.

Conventionally, as this kind of guide tape sticking device, a belt holding means for holding an endless belt in a cylindrical shape, and an end of the endless belt held by the belt holding means, and a guide on the inner peripheral surface of the endless belt. A tape pressing means having a grooved roller for pressing the tape and a circumferential sticking means for causing the tape pressing means to circulate along the inner peripheral surface of the endless belt are known (Patent Document 1). reference). The tape pressing means includes a grooved roller having an annular groove corresponding to the tape width of the guide tape, an air cylinder that presses the grooved roller against the endless belt, a roller rotation driving unit that rotates the grooved roller, and a guide tape. And a supply guide that leads to the grooved roller. With the air cylinder, the guide tape is attached to the inner peripheral surface of the end portion of the endless belt by pressing the end portion of the guide tape against the endless belt and rotating the endless belt and rotating the grooved roller.
Japanese Patent Laid-Open No. 10-86232

  By the way, the endless belt to which the guide tape is stuck is used by being stretched between a pair of grooved pulleys. The annular groove formed in each pulley is formed to be somewhat wider than the guide tape, and the running endless belt has one end surface in the width direction of the guide tape brought into contact with one groove wall of each annular groove. Positioned. That is, meandering of the endless belt is prevented by running while one end face of the guide tape and one groove wall of the annular groove are in contact with each other.

  On the other hand, since the width of the annular groove of the grooved roller is the same as the width of the guide tape in the conventional guide tape sticking device, the guide tape is compressed and deformed when the guide tape is pressed against the endless belt. Then, the end surface may meander and stick in the circumferential direction. Further, when the end surface of the guide tape is meandering due to a problem of manufacturing accuracy, the guide tape is stuck while the end surface of the guide tape is meandering. That is, when the guide tape is attached to the endless belt, the end face of the guide tape that becomes the positioning portion with respect to the pulley may be meandered and attached depending on the accuracy of pressure control and the manufacturing accuracy of the guide tape. There was a problem that the endless belt meandered during running.

  This invention makes it a subject to provide the guide tape sticking apparatus of the endless belt which can stick the end surface of a guide tape linearly with sufficient accuracy to the endless belt with respect to the endless belt.

  An endless belt guide tape sticking apparatus according to the present invention is an endless belt guide tape sticking apparatus for annularly sticking a guide tape with an adhesive used to prevent meandering of an endless belt to the inner peripheral surface of an end of the endless belt. A belt holding means for holding the endless belt, and a tape pressing portion that faces the end inner peripheral surface of the endless belt held by the belt holding means and continuously presses the guide tape from the tip to the tail end on the inner peripheral surface of the end. A tape pressing means, and a belt attaching means for rotating the tape pressing means relatively along the inner peripheral surface of the endless belt, and a circular attaching means for attaching the guide tape to the endless belt in an annular shape, The tape pressing portion includes a pressing surface portion having a pressing surface, a positioning guide portion that projects from the pressing surface portion and serves as a reference for preventing meandering, and a guide tape. Characterized in that it comprises a lateral move guide portion for Asked width up to the positioning guide portion, a biasing member which biases the transversely shifting guide portion for positioning the guide portion.

  According to this configuration, the guide tape is urged by the urging member to the positioning guide portion side via the width adjusting guide portion, and is pressed and positioned by the positioning guide portion. As a result, one end surface of the guide tape is deformed following the contact surface of the positioning guide portion, so that the end surface does not meander due to compression deformation at the time of attaching the guide tape, and the end surface of the guide tape is originally meandering (tape Even if the width is not constant), it can be adhered to the endless belt with one end face straight in the circumferential direction. Therefore, the end face of the endless belt during traveling by the pulley can be prevented by using the one end face as an end face for positioning with respect to the annular groove of the pulley.

  In this case, it is preferable that the positioning guide portion and the width adjusting guide portion protrude from the pressing surface portion so as to be equal to or less than the thickness of the guide tape that is compressed and deformed by pressing of the pressing surface portion.

  According to this configuration, the positioning guide portion and the width adjusting guide portion do not contact the inner peripheral surface of the endless belt. Thereby, since the pressing force from the pressing surface portion to the guide tape does not escape from the positioning guide portion and the width adjusting guide portion to the inner peripheral surface of the endless belt, the guide tape can be adhered efficiently.

  In this case, the circumferential sticking means has a holding means support frame that supports the belt holding means, and a pressing means support frame that supports the tape pressing means, and the holding means support frame and the pressing means support frame via It is preferable to have a revolving mechanism that revolves the tape pressing means relative to the belt holding means.

  According to this configuration, the holding means support frame, the pressing means support frame, and the orbiting mechanism can accurately move the tape pressing means relative to the belt holding means with a simple structure.

  In this case, the tape pressing portion includes a pressing portion supporting member attached to the pressing means supporting frame, a roller shaft rotatably supported by the pressing portion supporting member, and a hooked pressing roller pivotally attached to the roller shaft, A hook-shaped disk that is slidably supported on the roller shaft, and a spring that is wound around the roller shaft and biases the hook-shaped disk toward the hooked pressure roller, and is pressed by the hooked pressure roller. It is preferable that the surface portion and the positioning guide portion are configured, the width adjusting guide portion is configured by a bowl-shaped disk, and the biasing member is configured by a spring.

  According to this configuration, since the friction between the guide tape and the pressing surface of the tape pressing portion can be suppressed by using the roller mechanism as the tape pressing portion, the guide tape can be smoothly applied to the inner peripheral surface of the endless belt. Can be attached to. The flanged pressing roller may be a driving roller, but is preferably a free rotating roller.

  In this case, it is preferable to further include an adjustment nut that is screwed onto the roller shaft to adjust the urging force of the spring.

  According to this configuration, the urging force of the spring can be adjusted with a simple configuration, and the shifting force can be adjusted to an appropriate value depending on the material of the guide tape or the like.

  In the guide tape sticking device for the endless belt, the tape pressing portion includes a pressing portion supporting member attached to the pressing means supporting frame, a stepped tongue-like member supported by the pressing portion supporting member, and a stepped tongue. A pair of guide pins protruding from the piece-like member, a tongue piece member slidably supported by the pair of guide pins, and a pair of springs wound around the pair of guide pins, It is preferable that the pressing surface portion and the positioning guide portion are configured, the width guide portion is configured by the tongue piece member, and the biasing member is configured by the pair of springs.

  According to this configuration, the guide tape can be attached to the endless belt with a simple structure with high accuracy based on one end surface.

  In these cases, it is preferable that the tape pressing means further includes a receiving roller configured to freely rotate while facing the tape pressing portion with the endless belt interposed therebetween.

  According to this configuration, the guide tape and the endless belt are sandwiched between the tape pressing portion and the receiving roller, and the endless belt is not deformed outward by the pressing force from the tape pressing portion. Tape can be attached.

  In this case, the tape pressing portion is slidably attached to the pressing means support frame via the pressing portion support member, and the tape pressing means presses the tape pressing portion against the endless belt via the pressing portion support member. It is preferable to further have.

  According to this configuration, the guide tape can be brought into contact with the endless belt with a desired pressure by adjusting the pressing force of the pressing mechanism. In addition, the amount of compressive deformation of the guide tape due to the guide tape pressing can be managed.

  In this case, the pressing mechanism is preferably an air cylinder.

  According to this configuration, the pressing force in the pressing mechanism can be adjusted with high accuracy with a simple configuration.

  In this case, the belt holding means preferably holds the endless belt in a cylindrical shape from the inside.

  According to this configuration, since the endless belt can be prevented from shifting in the width direction on the holding region of the belt holding means when the guide tape is attached, the guide tape can be attached more accurately. Can do.

  In this case, the endless belt has an annular unnecessary end outside the annular sticking portion of the guide tape, and the unnecessary end is cut along with the relative rotation of the tape pressing means with respect to the belt holding means. It is preferable to further include means.

  According to this structure, the shaping cutting process of an endless belt edge part can be performed by this guide tape sticking apparatus. That is, the guide tape sticking process and the belt end shaping and cutting process can be performed by one apparatus. As a result, the time required for these processes can be reduced, and the cost of the apparatus for performing these processes can be reduced.

  In this case, the cutting means preferably comprises a rotary cutter disposed on one of the front side and the back side of the endless belt and a freely rotating blade receiving roller disposed on the other side.

  According to this configuration, the end portion of the endless belt can be cut using the relative rotation of the pressing unit support frame with respect to the holding unit support frame, and the cutting unit can have a simple configuration.

Hereinafter, an endless belt guide tape sticking apparatus according to the present invention will be described with reference to the accompanying drawings. This guide tape sticking device sticks a guide tape to the inner peripheral surface of the end portion of the endless belt and shapes and cuts an unnecessary end portion of the endless belt.
Here, the endless belt and the guide tape will be described before the details of the guide tape sticking apparatus are described.

  As shown in FIG. 1A, the endless belt B is a wide belt, for example, a photosensitive belt, a transfer belt, a carrier belt, and the like. Further, since the endless belt B is a molded product, the endless belt B has an unnecessary end portion Ba (see FIG. 1C), and the endless belt B appropriately travels by shaping and cutting the unnecessary end portion Ba. Processed.

  As shown in FIG. 1B and FIG. 1C, the guide tape T is slightly shorter than the designed circumferential length of the endless belt B when introduced into the guide tape adhering apparatus 1. Used by cutting. The guide tape T is composed of a base tape Ta formed of urethane resin and a double-sided adhesive tape Tb attached to the surface of the base tape Ta, and a release paper Tc is attached to the double-sided adhesive tape Tb. Has been. The guide tape T is adhered to the endless belt B while being pressed against the endless belt B while peeling the release paper Tc. The adhesive means for the guide tape T is not limited to the adhesive double-sided adhesive tape Tb, and an adhesive may be attached to the guide tape T (base tape Ta) in advance.

  As shown in FIG. 1 (d), the endless belt B to which the guide tape T is stuck is used by being stretched between a pair of grooved pulleys P. The annular groove formed in each pulley P is formed to be somewhat wider than the guide tape T, and the running endless belt B has one end surface in the width direction of the guide tape T in contact with one groove wall of each annular groove. Positioning. That is, the endless belt B is prevented from meandering by running while one end face of the guide tape T and one groove wall of the annular groove are in contact with each other. In addition, although mentioned later for details, in the guide tape sticking apparatus 1 of embodiment, it sticks to the endless belt B so that one end surface of this guide tape T becomes a reference | standard surface, and this end surface becomes a straight line. In addition, the endless belt B includes an endless belt in which a guide tape T is attached to only one end, and an endless belt in which the guide tape T is attached to both ends. When the belt B is used, a pulley P provided with annular grooves at both ends is used.

  As shown in FIG. 2, the guide tape sticking device 1 includes a belt holding mechanism (belt holding means) 2 that holds the endless belt B in a sideways posture in a cylindrical shape, and an endless belt B that is held by the belt holding mechanism 2. A tape pressing mechanism (tape pressing means) 3 that faces the inner peripheral surface and sticks while pressing the guide tape T to the inner peripheral surface of the endless belt B, and an end of the endless belt B that faces the end of the endless belt B. The end cutting mechanism (cutting means) 4 for cutting the portion Ba and the belt holding mechanism 2 are fixedly supported, and the tape pressing mechanism 3 and the end cutting mechanism 4 can be moved around the end surface of the endless belt B. Is provided with a peripheral movement mechanism (circular sticking means) 5 and a machine base 11 for supporting them.

  The circling movement mechanism 5 is installed on the machine base 11, and is supported by a main frame (holding means support frame) 12 that supports the belt holding mechanism 2, a main frame 12, and a tape pressing mechanism. 3 and a subframe (pressing means support frame) 13 that supports the end cutting mechanism 4, a motor unit (circulation mechanism) 14 that is disposed on the upper portion (outer peripheral surface) of the main frame 12 and rotates the subframe 13. It has.

  The main frame 12 has a bowl-like shape composed of a support frame 20 erected on the machine base 11, a disc frame portion 21 a supported by the support frame 20, and a cylindrical frame portion 21 b fixed to the end face of the disc frame portion 21 a. Frame 21. A belt holding mechanism 2 is disposed inside the bowl-shaped frame 21 so as to be supported by the disk frame portion 21a. A rotary actuator 81 of the belt holding mechanism 2 described later is provided outside the disk frame portion 21a. Is supported. A motor unit 14 is attached to the upper outer peripheral surface of the disc frame portion 21a. Furthermore, a bearing 22 that rotatably supports the sub-frame 13 is provided at the tip of the cylindrical frame portion 21b.

  The motor unit 14 includes a drive motor 31 configured by a geared motor or the like, a motor frame 32 that supports the drive motor 31, and an output gear 33 that is fixed to the main shaft of the drive motor 31. The cylindrical frame portion 21b of the bowl-shaped frame 21 is attached. The output gear 33 is meshed with an external gear 37 of the subframe 13 described later. In the present embodiment, the rotational movement by the circular movement mechanism 5 is performed by the drive motor 31. However, instead of this, a rotation handle may be provided and manually rotated.

  The sub-frame 13 includes a ring-shaped frame 35 that is rotatably supported at the tip of the bowl-shaped frame 21, and a one-character frame 36 that is attached to the end surface of the ring-shaped frame 35 and supports the tape pressing mechanism 3. I have. An external gear 37 is formed on the outer peripheral surface of the front end of the ring-shaped frame 35, and the bearing 22 is fitted on the inner peripheral surface of the front end. The external gear 37 meshes with the output gear 33, and when the output gear 33 is rotated by the drive motor 31, the ring-shaped frame 35 is rotated around the outer peripheral surface of the front end portion of the bowl-shaped frame 21 via the bearing 22. It rotates on the same axis as the belt holding mechanism 2. By this rotation, the tape pressing mechanism 3 performs a planetary motion with respect to the endless belt B held by the belt holding mechanism 2 (details will be described later).

  The one-character frame 36 extends in the diameter direction of the ring-shaped frame 35, and an oval opening 38 through which a roller shaft 51 of the tape pressing mechanism 3 described later passes is formed at the center. Further, an end cutting mechanism 4 that cuts the end of the endless belt B and a receiving roller 42 of the tape pressing mechanism 3 to be described later are attached to the single character frame 36 at opposite positions away from the center. The one character frame 36 is rotatably supported by the ring-shaped frame 35 at one end. That is, the one-character frame 36 is rotatably supported by the ring-shaped frame 35 so as to fall outward while the tape pressing mechanism 3 is supported, and by rotating the one-character frame 36 so as to fall, the tape The pressing mechanism 3 is opened to the outside of the apparatus. By opening the one-character frame 36, the guide tape T is set on the tape pressing mechanism 3, and the endless belt B is taken out and attached to the belt holding mechanism 2.

  The tape pressing mechanism 3 has a pressing roller 52 (see FIGS. 3 and 4) that is supported on the lower outer surface of the single character frame 36 and presses the guide tape T against the inner peripheral surface of the endless belt B inside the single character frame 36. The tape pressing portion 41, a slide guide 46 provided outside the single character frame 36 and slidably supporting the tape pressing portion 41 in the longitudinal direction of the single character frame 36, and the tape pressing portion 41 using the slide guide 46 as a guide. An air cylinder 45 (pressing mechanism) to be slid and a receiving roller 42 that is rotatably supported inside the single character frame 36 and is opposed to the tape pressing portion 41 with the endless belt B interposed therebetween.

  The tape pressing portion 41 has a pressing roller 52 and is slidably supported by a slide guide 46 on the outer side of the pressing portion unit 43 disposed so as to penetrate the elliptical opening 38 and the one character frame 36. In addition, a slide support member (press support member) 44 that supports the pressing unit 43 is provided. After the guide tape T is initially set in the pressing portion unit 43, the pressing portion unit 43 is pulled (retracted) in the radial direction via the slide support member 44 by the air cylinder 45, and the guide tape T is moved into the endless belt B. Press against the peripheral surface with a certain pressure. In this state, the guide tape T is stuck to the end of the endless belt B held in a cylindrical shape by rotating the sub-frame 13 and causing the tape pressing portion 41 to perform a planetary motion.

  Thus, by having a pressing mechanism that presses the tape pressing portion 41 against the endless belt B, the pressing force of the pressing mechanism can be adjusted, and the guide tape T can be brought into contact with the endless belt B with a desired pressure. The amount of compressive deformation of the guide tape T due to the pressing of the tape T can be managed. Further, by using the air cylinder 45 as the pressing mechanism, the pressing force in the pressing mechanism can be adjusted with high accuracy with a simple structure.

  As shown in FIGS. 3 and 4, the pressing unit 43 includes a support block 50 that is screwed to the distal end portion of the slide support member 44, and is rotatably supported by the support block 50. A roller shaft 51 extending through the circular opening 38, and a pressing roller 52 with a flange that is attached to the end of the roller shaft 51 and presses the guide tape T against the endless belt B are provided. The roller shaft 51 is supported on the support block 50 so as to be freely rotatable with both hands, and a main roller 53 of a pressing roller 52 (to be described later) is integrally formed at a tip portion thereof. The pressing roller 52 includes a main roller (wrinkled pressing roller) 53 on the front end side, and a sub-roller (wrinkled disk) 54 provided so as to be attached to the main roller 53. The main roller 53 includes an annular pressing surface portion 53 a and a flange portion (positioning guide portion) 53 b protruding from one end of the pressing surface portion 53 a, and is configured to be freely rotatable via a roller shaft 51. The sub roller 54 faces the flange portion 53b with the pressing surface portion 53a interposed therebetween, and has a disc portion (width guide portion) 54a formed with the same diameter as the flange portion 53b, and a boss portion that holds the disc portion 54a. 54b and are integrally formed. An adjustment nut 56 is screwed onto the roller shaft 51, and a coil spring (spring) that urges the sub roller 54 toward the main roller 53 between the adjustment nut 56 and the sub roller 54. 55 is interposed.

  The guide tape T is loaded so as to be loosely wound around the pressing surface portion 53a of the main roller 53, and the width direction is positioned between the flange portion 53b of the main roller 53 and the outer peripheral end of the disc portion 54a of the sub roller 54. To be set. In the initial set state, the leading end of the guide tape T is pressed against the endless belt B by the pressing surface 53a, and the pressing position is continuously moved from the leading end to the tail end by the planetary motion. Then, the guide tape T is attached to the endless belt B. The guide tape T on the pressing surface portion 53a is pressed against the flange portion 53b of the main roller 53 by the coil spring 55 via the sub roller 54, and is adhered to the endless belt B with reference to the inner surface of the flange portion 53b. Is done.

  Thus, by positioning the guide tape T against the flange 53b of the main roller 53, one end surface in the width direction of the guide tape T is deformed following the contact surface of the flange 53b. The end face does not meander due to compression deformation at the time of sticking, and even if the end face of the guide tape T originally meanders (including the case where the tape width is not constant), one end face is straight in the circumferential direction. In this state, it can be attached to the endless belt B. Therefore, the meandering of the endless belt B during traveling by the pulley P can be prevented by using this one end face as a positioning end face for the annular groove of the pulley P. Moreover, since the friction between the guide tape T and the pressing surface portion 53a can be suppressed by using a roller mechanism as the tape pressing portion 41, the guide tape T can be smoothly applied to the inner peripheral surface of the endless belt B. Can be attached.

  Further, according to the pressing unit 43, the pressing force of the sub roller 54 against the guide tape T is appropriately adjusted by adjusting the spring force of the coil spring 55 with the adjusting nut 56. By having the adjustment nut 56 in this way. With a simple configuration, the pressing force against the guide tape T can be adjusted, and the pressing force can be adjusted to an appropriate value depending on the material of the guide tape T and the like.

  In addition, the protrusion dimension of the flange part 53b and the disk part 54a (the outer peripheral part thereof) with respect to the pressing surface part 53a is shorter than the expected deformation (crushing) dimension when the guide tape T is attached, When the guide tape T is adhered to the endless belt B, the flange portion 53b and the disc portion 54a are configured not to contact the endless belt B (constant pressing force). As a result, the pressing force of the pressing surface portion 53a does not escape from the flange portion 53b and the disc portion 54a to the inner peripheral surface of the endless belt B, so that the guide tape T can be attached efficiently.

  When the guide tape T is set, the end portion of the release paper Tc of the set guide tape T is peeled off and held by a release paper holding mechanism (not shown) installed on the single character frame 36. Thereby, the guide tape T is stuck, peeling the release paper Tc of the guide tape T at the time of the rotational movement of the sub-frame 13. Further, the main roller 53 of the pressing roller 52 may be a driving roller and rotated in synchronization with the ring-shaped frame 35.

  As shown in FIG. 5, the receiving roller 42 includes a roller main body 58 that faces the pressing roller 52 of the tape pressing portion 41 with the endless belt B interposed therebetween, a fixed shaft 59 that rotatably supports the roller main body 58, and And a mounting plate 60 for attaching the roller main body 58 to the inside of the single character frame 36 via a fixed shaft 59. A bearing (not shown) is interposed between the fixed shaft 59 and the roller main body 58, and the fixed shaft 59 and the roller main body 58 have a so-called roller follower configuration. The endless belt B and the guide tape T are nipped while being rotated by the pressing roller 52 of the tape pressing portion 41 and the roller main body 58 of the receiving roller 42, and when the guide tape T is stuck to the endless belt B. The roller 42 receives the pressing force of the pressing roller 52. Therefore, the endless belt B is not deformed outward by the pressing force of the pressing roller 52, and the guide tape T can be adhered with high accuracy.

  As shown in FIGS. 2, 6, and 7, the end cutting mechanism 4 is attached to the outer surface of the single character frame 36, passes through the single character frame 36 and faces the end of the endless belt B, and the single character cutting mechanism 4. A blade receiving roller 62 that is attached to the inner surface of the frame 36 and faces the rotary cutter 61 across the endless belt B is provided.

  The rotary cutter 61 includes a mounting block 64 screwed to the outer surface of the single character frame 36, a cutter shaft 65 extending through the single character frame 36 while being supported by the mounting block 64 so as to be freely rotatable. And a disc-shaped cutter blade 66 detachably fixed to the tip of the shaft 65. In this case, the cutter blade 66 rotates with the relative rotation of the endless belt B, and the unnecessary end Ba is cut. On the other hand, the blade receiving roller 62 has the form of a roller follower, similar to the receiving roller 42 described above, and is directly fixed to the single character frame 36 by a screw threaded on the base end portion of the shaft portion. The blade receiving roller 62 is adapted to receive a cutting force with respect to the endless belt B of the rotary cutter 61. By having such an end cutting mechanism 4, the shaping and cutting processing of the end of the endless belt B can be performed by the guide tape sticking device 1. That is, the sticking process of the guide tape T and the shaping / cutting process of the belt end can be performed by one apparatus. As a result, the time required for these processes can be reduced, and the cost of the apparatus for performing these processes can be reduced. Further, by using the rotary cutter 61 as a cutting means for the unnecessary end portion Ba, the unnecessary end portion Ba can be cut using the rotational motion of the subframe 13. Note that the receiving roller 42 and the blade receiving roller 62 may be formed by winding an elastic body on the outer peripheral surface.

  Next, the belt holding mechanism 2 will be described with reference to FIG. As shown in FIG. 8, the belt holding mechanism 2 is supported on the inner side of the divided cylindrical body 72 formed of four divided holding pieces 71 that are in contact with the endless belt B and divided in the circumferential direction, and the disc frame portion 21 a. At the same time, four cylindrical body support sliders 73 that support each of the divided holding pieces 71 in a slidable manner in the radial direction, and four linear guides 76 provided on the inner side of the disk frame portion 21 a corresponding to the four cylindrical body support sliders 73. And a chuck mechanism 74 that moves each divided holding piece 71 forward and backward in the radial direction using each linear guide 76 as a guide. The endless belt B is attached to the four divided holding pieces 71 with the chuck mechanism 74 retracted toward the center of the divided cylindrical body 72, and then the four divided holding pieces 71 are moved outward. The endless belt B is set in the belt holding mechanism 2 by moving forward. Further, in this state, the tape pressing mechanism 3 and the end cutting mechanism 4 are moved by the circular moving mechanism 5 so that the guide tape T is adhered and the unnecessary end Ba is shaped and cut.

  Thus, by using the belt holding mechanism 2 that holds the endless belt B in a cylindrical shape from the inside, the endless belt B is shifted in the width direction on the holding area of the belt holding mechanism 2 when the guide tape T is stuck. Therefore, the guide tape T can be attached more accurately.

  Each divided cylindrical body 72 is composed of four divided holding pieces 71 formed in a stepped cross-sectional fan shape, and is formed in a bowl shape that is laid sideways as the entire divided cylindrical body 72. Further, the base portion of each divided holding piece 71 is lacking in a fan shape, whereby the divided cylindrical body 72 has a through hole 72a at the center. Each divided holding piece 71 is held in such a manner that the endless belt B is stretched by being in direct contact with the inner peripheral surface of the endless belt B at its arcuate portion (outer peripheral surface viewed from the entire divided cylindrical body 72). The contour formed by the outer peripheral surface of the body 72 is formed in the same circle as the designed circle formed by the inner peripheral surface of the endless belt B.

  The four linear guides 76 are provided on the inner surface of the disc frame portion 21a so as to form a cross shape, and the four cylindrical body support sliders 73 are arranged in a cross shape correspondingly. As each cylindrical body support slider 73 slides in the radial direction with respect to each linear guide 76, each divided holding piece 71 fixed to the cylindrical body support slider 73 advances and retreats in the radial direction.

  The chuck mechanism 74 includes an air-driven rotary actuator 81 supported on the outside of the disc frame portion 21a, an input shaft 83 that extends through the shaft center portion of the disc frame portion 21a to the divided cylindrical body 72, and an input shaft. The crank member 84 fixed to the tip of 83 and disposed at the center of the divided cylindrical body 72, and the crank member 84 and the four divided holding pieces 71 (the bottom surfaces of the stepped portions of the divided holding pieces 71) are connected to each other. And four links 85 to be provided. The input shaft 83 is connected to the rotary actuator 81 via a coupling 82 and is rotatably supported by the disc frame portion 21a coaxially with the endless belt B. The crank member 84 is configured to have crank pins 84b at four eccentric positions on a crank disk 84a formed in a disk shape. That is, the crank member 84 and the four links 85 constitute four sets of crank mechanisms. When the input shaft 83 is rotated in the forward direction by the rotary actuator 81, the four divided holding pieces 71 are simultaneously advanced in the radial direction via the crank member 84 and the links 85, and when the input shaft 83 is rotated in the reverse direction, the crank member 84 and the links are rotated. The four divided holding pieces 71 are simultaneously retracted in the radial direction via 85.

  Next, with reference to FIG. 8, especially a different part is mainly demonstrated about the press part unit 43 which concerns on 2nd Embodiment of this invention. In this embodiment, the pressing unit 43 is supported by the slide support member 44, and the pressing unit support 95 that penetrates the single character frame 36 through the oval opening 38, and the distal end portion of the pressing unit support 95 And a stepped tongue-shaped member 91 facing outward in the radial direction, and protruding from the upper surface of the stepped portion of the stepped tongue-shaped member 91 to the one-character frame 36 side, and a collar portion at the tip thereof A pair of guide pins 92, 92, a tongue piece member (width-adjusting guide portion) 93 slidably supported by the pair of guide pins 92, 92, and a tongue piece member on the pair of guide pins 92, 92 93 and a pair of urging springs (springs) 94 that are wound between the flange portions of the guide pins 92 and 92 and urge the tongue piece member 93 toward the stepped tongue piece member 91.

  The stepped tongue-like member 91 includes a tongue-like tongue piece pressing surface portion (pressing surface portion) 91a for pressing the guide tape T, and a tongue-like tongue piece positioning guide (positioning guide portion) protruding from the tongue piece pressing surface portion 91a. ) 91b, and the guide tape T is placed on the end face of the tongue piece pressing surface portion 91a of the stepped tongue piece member 91, the tip portion of the tongue piece positioning guide 91b, and the tongue piece member 93 The width direction is positioned between the ends and set. The set guide tape T is pressed against the tongue piece positioning guide 91b by the biasing spring 94 through the tongue piece member 93, and is adhered to the endless belt B with the side surface as a reference. According to such a configuration, the guide tape T can be attached to the endless belt B with a simple structure with high accuracy based on one end surface.

  As described above, according to the above two embodiments, the guide tape T is moved by the biasing means (the coil spring 55 and the biasing spring 94) via the width adjusting guide portion (the sub roller 54 and the tongue piece member 95). The positioning guide portion (the main roller 53 and the stepped tongue-like member 91) is urged toward the positioning guide portion and is positioned by pressing. As a result, one end surface of the guide tape T is deformed following the contact surface of the positioning guide portion, so that the end surface does not meander due to compression deformation when the guide tape T is adhered, and the end surface of the guide tape T is originally formed. Even if meandering (including the case where the tape width is not constant), the end face can be stuck to the endless belt B with the end face straight in the circumferential direction. Accordingly, by making this one end face an end face for positioning with respect to the annular groove of the pulley P, meandering of the endless belt B during traveling by the pulley P can be prevented.

  In addition, in this embodiment, although what adheres guide tape T only to one end part of endless belt B is adopted, when attaching guide tape T also to the other end part, After sticking the guide tape T to one end, once remove the endless belt B, set the endless belt B in the reverse direction so that the other end faces the sticking area, and guide tape T to the other end You may make it stick. In this case, a groove into which the affixed guide tape T enters is provided on the base side of the divided cylindrical body 72 so that the endless belt B with the guide tape T affixed to one end can be appropriately set. To set up.

  In this embodiment, the belt holding mechanism 2 is fixed and the tape pressing mechanism 3 is rotated (planetary motion). However, the tape pressing mechanism 3 is fixed and the belt holding mechanism 2 is rotated. Also good. In such a case, the motor unit 14 is mounted on the ring-shaped frame 35, and the external gear 37 is formed at the tip of the bowl-shaped frame 21 (cylindrical frame portion 21b). Further, as the belt holding mechanism 2, a belt holding and holding the endless belt B by a pair of pulleys P may be used.

It is explanatory drawing which represented the endless belt and the guide tape typically. It is a structure figure showing typically the guide tape sticking device concerning one embodiment of this embodiment. It is a block diagram of the tape press part in a tape press mechanism. It is a perspective view of a tape press part. It is a structural diagram of the receiving roller in the tape pressing mechanism. It is a block diagram of the rotary cutter in an edge part cutting mechanism. It is a perspective view of a rotary cutter. It is a block diagram which represented the chuck mechanism periphery typically. It is the block diagram which represented typically the tape press mechanism periphery which concerns on 2nd Embodiment.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1: Guide tape sticking apparatus, 2: Belt holding mechanism, 3: Tape pressing mechanism, 4: End part cutting mechanism, 5: Circulation movement mechanism, 12: Main frame, 13: Sub frame, 14: Motor unit, 41: Tape pressing part, 42: receiving roller, 44: slide support member, 45: air cylinder, 51: roller shaft, 53: main roller, 53a: pressing surface part, 53b: collar part, 54: sub-roller, 54a: disk part 55: Coil spring, 56: Adjustment nut, 61: Rotary cutter, 62: Blade receiving roller, 91: Stepped tongue piece member, 91a: Tongue piece pressing surface part, 91b: Tongue piece positioning guide, 92: Guide pin, 93: Tongue piece member 94: Biasing spring B: Endless belt Ba: Unnecessary end T: Guide tape

Claims (12)

In an endless belt guide tape sticking device for sticking a guide tape with an adhesive used to prevent meandering of the endless belt in an annular manner to the inner peripheral surface of the end of the endless belt,
Belt holding means for holding the endless belt;
A tape pressing means having a tape pressing portion facing the inner peripheral surface of the endless belt held by the belt holding means and continuously pressing the guide tape from the tip to the tail end on the inner peripheral surface of the end;
A rotation sticking means for rotating the tape pressing means relative to the belt holding means along the inner peripheral surface of the endless belt, and attaching the guide tape to the endless belt in an annular shape;
The tape pressing portion includes a pressing surface portion that forms a pressing surface, a positioning guide portion that projects from the pressing surface portion and serves as a reference for preventing meandering, and a positioning guide portion that positions the guide tape. A guide tape affixing to an endless belt, characterized by comprising: a width adjusting guide portion that adjusts the width toward the guide portion; and a biasing member that biases the width adjusting guide portion toward the positioning guide portion. apparatus.   The said positioning guide part and the said width adjustment guide part protrude from the said press surface part so that it may become below the thickness of the said guide tape which compresses and deforms by pressing of the said press surface part. Endless belt guide tape sticking device. The circumferential sticking means includes a holding means support frame for supporting the belt holding means,
A pressing means support frame for supporting the tape pressing means,
3. A rotating mechanism for rotating the tape pressing means relative to the belt holding means via the holding means supporting frame and the pressing means supporting frame. An endless belt guide tape sticking device as described in 1. The tape pressing portion includes a pressing portion supporting member attached to the pressing means supporting frame, a roller shaft rotatably supported by the pressing portion supporting member, and a hooked pressing roller pivotally attached to the roller shaft. A saddle-shaped disk that is slidably supported on the roller shaft, and a spring that is wound around the roller shaft and biases the collar-shaped disk toward the flange pressing roller.
The pressing surface portion and the positioning guide portion are configured by the flange pressing roller, the width guide portion is configured by the flange disk, and the biasing member is configured by the spring. The guide tape sticking device for an endless belt according to claim 3.   The guide tape sticking device for an endless belt according to claim 4, further comprising an adjustment nut that is screwed onto the roller shaft to adjust a biasing force of the spring. The tape pressing portion includes a pressing portion supporting member attached to the pressing means supporting frame, a stepped tongue-like member supported by the pressing portion supporting member, and a pair of protrusions protruding from the stepped tongue-like member. A guide pin, a tongue piece member slidably supported by the pair of guide pins, and a pair of springs wound around the pair of guide pins,
The stepped tongue-like member constitutes the pressing surface portion and the positioning guide portion, the tongue piece member constitutes the width adjusting guide portion, and the pair of springs constitutes the biasing member. The guide tape sticking device for an endless belt according to claim 3.   7. The tape pressing unit according to claim 1, further comprising a receiving roller configured to freely rotate while facing the tape pressing portion with the endless belt interposed therebetween. An endless belt guide tape sticking device as described in 1. The tape pressing portion is slidably attached to the pressing means support frame via the pressing portion support member.
The endless tape according to any one of claims 3 to 7, wherein the tape pressing means further includes a pressing mechanism that presses the tape pressing portion against the endless belt via the pressing portion supporting member. Belt guide tape sticking device.   The guide tape sticking device for an endless belt according to claim 8, wherein the pressing mechanism is an air cylinder.   The guide tape sticking device for an endless belt according to any one of claims 1 to 9, wherein the belt holding means holds the endless belt in a cylindrical shape from the inside. The endless belt has an annular unnecessary end outside the annular sticking portion of the guide tape,
The endless belt according to any one of claims 1 to 10, further comprising a cutting means for cutting off the unnecessary end portion as the tape pressing means rotates relative to the belt holding means. Guide tape sticking device.   The cutting means comprises a rotary cutter disposed on one of the front side and the back side of the endless belt, and a freely rotating blade receiving roller disposed on the other side. Endless belt guide tape sticking device.

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