JP4494193B2 - Winding device - Google Patents

Description

  The present invention relates to a winding device for winding a belt-like mount, and more particularly, to a label sticking device that peels off a label temporarily attached to a belt-like mount and sticks it to an adherend, and winds the belt-like mount from which the label is peeled off. The present invention relates to a take-up device.

  For label affixing devices that peel off the label temporarily attached to the belt-like mount and attach it to the adherend, a plurality of labels are temporarily attached to the belt-like backing at intervals in order to feed out the label to be attached to the adherend. And a take-up device having a take-up reel, and the belt-like mount from which the label has been peeled is transferred to the take-up device by the transfer means. It is configured to be wound on a reel.

  When winding the belt-like mount on the take-up reel, with the change in the winding diameter of the belt-like mount wound on the take-up reel, the transfer speed of the belt-like mount by the transfer means, the winding speed of the belt-like mount by the winding device, Therefore, a mechanism for absorbing the speed difference between the transfer speed and the winding speed is required.

  As a mechanism for absorbing the speed difference between the transfer speed and the take-up speed, the take-up torque is made constant by interposing a torque limiter in one of the train wheels that transmits the rotational driving force from the drive source to the take-up reel. In general, a mechanism for winding the belt-like mount without slackening (see, for example, Patent Document 1).

However, in recent years, there is a tendency that the label sticking speed to the adherend is increased, and it is required to increase the transfer speed and the winding speed. Therefore, the torque limiter provided as a mechanism for absorbing the speed difference between the transfer speed and the winding speed is also required to cope with a high rotational speed, and in order to follow the increase in the winding speed, Although it is necessary to increase the winding torque, that is, the set torque in the torque limiter, a torque limiter that can handle high torque is expensive and generally has a small upper limit for the number of rotations used. When used, there is a problem that durability is reduced.
JP-A-5-96802

  The present invention has been made in view of such problems, and an object of the present invention is to cope with an increase in transfer speed and take-up speed, and to provide an inexpensive and durable transfer speed. It is in the point which provides the winding device provided with the mechanism which absorbs the speed difference with winding speed.

In order to solve the above problems, the present invention has the following configuration.
The gist of the invention described in claim 1 is that a label continuous body in which a plurality of labels are temporarily attached to a belt-like mount at intervals is transferred, and the label is peeled off from the belt-like mount and attached to an adherend. A winding device that is used in a sticking device and that winds the belt-like mount from which the label has been peeled off by rotating a winding drive shaft that is rotationally driven in the winding direction, and is mounted on the winding drive shaft. A final gear to which a rotational driving force for rotating the winding drive shaft is transmitted, a plurality of torque limiters disposed on both sides of the final gear, and the winding drive shaft, And a guide plate fixed to the take-up reel, and the take- up drive shaft and the take-up reel are connected to the take-up drive shaft. Ringed Via a guide plate having biased in a direction to rotate in the winding direction relative to the coupling and the coupling was mounted with a predetermined play angle in the rotational direction, the final gear, the winding The rotational driving force that is idled with respect to the drive shaft and transmitted to the final gear exists in a winding device that rotates the winding drive shaft through the plurality of torque limiters.
A loose fitting protrusion formed on the opposite surface of the coupling facing the guide plate; an arcuate groove formed in the guide plate; and the loose fitting groove in which the loose fitting protrusion is loosely fitted; and the guide plate; Located between the couplings, mounted on the take-up drive shaft, one end locked to the coupling and the other end locked to the guide plate, respectively, and the guide plate is urged against the coupling in the rotational direction. The winding device according to claim 1 , further comprising a torsion spring to be wound.
The gist of the invention described in claim 3 resides in the winding device according to claim 1 or 2, wherein the winding drive shaft is mounted around a one-way hinge .

  The winding device of the present invention absorbs the speed difference between the transfer speed and the winding speed by configuring the winding drive shaft to rotate through the torque limiters respectively arranged on both sides of the final gear. As a mechanism, it is possible to use an inexpensive low-torque torque limiter that supports high-speed rotation without using an expensive torque limiter that supports high torque. In addition, the durability can be improved, and the rotational driving force transmitted to the final gear is transmitted from both sides of the final gear to the take-up drive shaft. The load on the limiter is not biased, and the durability can be further improved.

  Furthermore, the winding device according to the present invention is configured so that the same number of the torque limiters having the same set torque are arranged on both sides of the final gear, respectively. Since the load acts evenly and it is possible to prevent the load from being concentrated on any of the torque limiters and being damaged, there is an effect that durability is improved.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a perspective view showing a configuration of a label sticking device in which an embodiment of a winding device according to the present invention is used, and FIG. 2 is a label sticking in which an embodiment of a winding device according to the present invention is used. It is a schematic side view which shows the structure of an apparatus, FIG. 3 is a perspective view which shows the external appearance structure of embodiment of the winding apparatus which concerns on this invention.

  The winding device 1 according to the present embodiment is a device that is used in the label sticking device 2 shown in FIGS. 1 and 2 and winds the belt-like mount 4 from which the label 3 has been peeled off.

  The label sticking device 2 is a device that is arranged above the conveyor 5 and peels off the label 3 temporarily attached to the belt-like mount 4 and sticks it to the adherend 6 conveyed on the conveyor 5. Referring to FIGS. 1 and 2, a label supply unit 22 is provided on the upper portion of the main body frame 21. The label supply unit 22 includes a supply reel 221 that is mounted in a state in which a label continuous body 7 on which a plurality of labels 3 are temporarily attached to the belt-like mount 4 is wound in a roll shape, and the supply reel 221. The label continuous body 7 which is composed of guide plates 222 and 223 for respectively guiding both end surfaces of the attached label continuous body 7 and is wound in a roll shape is rotatably held on the supply reel 221.

  The label continuous body 7 fed out from the supply reel 221 passes through the upper surface side of the transfer unit 23 and is transferred to the peeling plate 24. Reference numeral 25 shown in FIGS. 1 and 2 is a tension roller that absorbs a change in tension applied to the label continuum 7, and is arranged in the transfer path from the supply reel 221 to the transfer unit 23.

  The release plate 24 is formed with an acute angle at the tip, and turns the belt-like mount 4 and peels off the label 3 having a higher rigidity than the belt-like mount 4 from the belt-like mount 4, and the peeled label 3 is peeled off from the release plate 24. It is drawn forward from. The label 3 fed out from the peeling plate 24 is pressed against the upper surface of the adherend 6 conveyed by the conveyor 5 by a sticking roller 26 provided in front of the peeling plate 24 in the label feeding direction. It is affixed at a predetermined position on the upper surface.

  Further, a label detection sensor 27 for detecting the leading end of the label 3 is arranged on the upstream side of the peeling plate 24 in the transport direction of the label continuum 7, and by grasping the leading end of the label 3 by the label detection sensor 27, Control is performed so that the tip of the label 3 fed out from the peeling plate 24 is stuck to a predetermined position on the upper surface of the adherend 6.

  On the other hand, the strip-shaped mount 4 from which the label 3 has been peeled is transferred to the winding device 1 through the lower surface side of the transfer unit 23 and wound. A reference numeral 28 shown in FIGS. 1 and 2 is a tension roller that absorbs a change in tension applied to the belt-like mount 4, and is arranged in a transfer path from the transfer unit 23 to the winding device 1.

  The transfer unit 23 includes a transfer roller 231 that is rotationally driven by a drive motor (not shown), a first nip roller 232, and a second nip roller 233, and is nipped and transferred by the transfer roller 231 and the first nip roller 232. The label continuous body 7 fed out from the supply reel 221 is transferred to the peeling plate 24, and the belt-like mount 4 that is nipped and transferred by the transfer roller 231 and the second nip roller 233 and turned by the peeling plate 24 is transferred to the winding device 1. Transport.

  1 and 3, the take-up reel 1 is wound around the take-up drive shaft 101 protruding from the take-up device support frame 211 protruding from the main body frame 21. The take-up reel 102 is rotated following the rotation of the drive shaft 101, and the belt-like mount 4 turned by the peeling plate 24 is taken up on the take-up reel 102.

4 and 5, the take-up drive shaft 101 and the take-up reel 102 have a predetermined play angle in the rotation direction via the coupling 104 and the guide plate 103 that are mounted on the take-up drive shaft 101. Hereinafter, the mounting configuration of the take-up reel 102 to the take-up drive shaft 101 will be described in detail.
FIG. 4 is an exploded perspective view showing a configuration for attaching the take-up reel to the take-up drive shaft shown in FIG. 3, and FIG. 5 is an explanation for explaining the rotation operation of the take-up drive shaft and the take-up reel. FIG.

  A fixing protrusion 102a is formed on the end surface of the take-up reel 102 facing the guide plate 103, and a fixing hole 103a into which the fixing protrusion 102a is fitted is formed in the guide plate 103. The fixing protrusion 102a is fitted into the fixing hole 103a with the rib 101a formed on the drive shaft 101 interposed therebetween, and the winding reel 102 and the guide plate 103 are fixed by fixing means such as a screw (not shown). The reel 102 and the guide plate 103 are fixed, and the positions of the take-up reel 102 and the guide plate 103 in the axial direction of the take-up drive shaft 101 are fixed.

  The end face of the coupling 104 facing the guide plate 103 is formed with a loose fitting protrusion 104a, and the guide plate 103 is formed with a loose fitting groove 103b into which the loose fitting protrusion 104a is loosely fitted. The coupling 104 is fixed to the winding drive shaft 101 by a fixing means such as a screw (not shown) in a state where the loose fitting protrusion 104a is loosely fitted in the loose fitting groove 103b. As shown in FIG. 4, the loose fitting groove 103b is formed in an arc shape, and the loose fitting protrusion 104a is movable on a concentric circle of the winding drive shaft 101 along the loose fitting groove 103b.

  Further, a torsion spring 105 is mounted on the take-up drive shaft 101 between the guide plate 103 and the coupling 104, and a coupling fixed end 105 a that is one end of the torsion spring 105 is connected to the coupling 104. The reel fixing end 105b, which is the other end of the torsion spring 105, is locked in a spring fixing groove 104b formed on the end surface facing the guide plate 103, and the take-up reel is connected to the guide plate 103 through the fixing hole 103a. It is latched by the fixed protrusion 102a of 102. The torsion spring 105 biases the guide plate 103 in the direction of rotating the guide plate 103 in the winding direction.

  Accordingly, when the take-up drive shaft 101 is not rotationally driven, the take-up reel 102 and the guide plate 103 are rotated in the take-up direction with respect to the coupling 104 by the urging force of the torsion spring 105, as shown in FIG. Thus, the loose fitting protrusion 104a of the coupling 104 is located on the rear end side in the winding direction of the loose fitting groove 103b.

  When the take-up drive shaft 101 is rotationally driven in the take-up direction, the take-up reel 102 and the guide plate 103 are rotated in the opposite direction to the take-up direction by the tension of the belt-like mount 4 taken up by the take-up reel 102. The take-up reel 102 and the guide plate 103 are rotated against the coupling 104 in the direction opposite to the take-up direction against the urging force of the torsion spring 105, as shown in FIG. The loose fitting protrusion 104a of the coupling 104 is located on the distal end side in the winding direction of the loose fitting groove 103b.

  If the rotational drive of the take-up drive shaft 101 is stopped when the loose fitting protrusion 104a of the coupling 104 is in the position shown in FIG. 5B, the take-up of the belt-like mount 4 on the take-up reel 102 is stopped. Therefore, the force for rotating the take-up reel 102 and the guide plate 103 in the direction opposite to the take-up direction does not act, and the loose fitting protrusion 104a of the coupling 104 is loosely fitted as shown in FIG. The take-up reel 102 and the guide plate 103 are rotated in the take-up direction with respect to the coupling 104 by the urging force of the torsion spring 105 until the groove 103 b is positioned on the rear end side in the take-up direction. Accordingly, after the rotational drive of the take-up drive shaft 101 is stopped, the belt-like mount 4 is taken up by the take-up reel 102 by the amount that the take-up reel 102 is rotated in the take-up direction by the biasing force of the torsion spring 105. The slack of the belt-like mount 4 can be prevented.

Next, the drive mechanism of the winding drive shaft 101 will be described in detail with reference to FIGS.
FIG. 6 is a perspective view showing a configuration of a drive mechanism of the take-up drive shaft in the embodiment of the take-up device according to the present invention, and FIG. 7 is a view showing a durability test result of the torque limiter shown in FIG. is there.

  Referring to FIG. 6, the winding drive shaft 101 is rotatable by bearings 106 and 107 to a winding device support frame 211 and a support plate 212 (fixed to the winding device support frame 211), respectively. It is pivotally supported and penetrates a one-way hinge 108 fixed to the support plate 212.

  The one-way hinge 108 is a hinge that functions as a one-way clutch and a torque limiter. When the winding drive shaft 101 rotates in the winding direction, the winding drive shaft 101 is idled without generating torque, and the winding drive shaft 101 is wound. Torque is generated in the rotation in the direction opposite to the taking direction. Accordingly, the one-way hinge 108 functions as a means for preventing reverse rotation of the take-up drive shaft 101. When the take-up drive shaft 101 stops in synchronization with the transfer roller 231 of the transfer unit 23, the take-up drive shaft 101 takes up. Prevents rotation in the opposite direction to the direction.

  The take-up drive shaft 101 is rotationally driven using a drive motor (not shown) that drives the transfer roller 231 of the transfer unit 23 as a drive source, and the rotational drive force from the drive motor is taken up via the gear 109 and the gear 110. It is transmitted to the final gear 111 that is mounted on the 101. The final gear 111 rotates freely with respect to the winding drive shaft 101, and the rotational driving force transmitted to the final gear 111 is mounted on the winding drive shaft 101 on both sides of the final gear 111. The winding drive shaft 101 is rotationally driven through a torque limiter 112 and a torque limiter 113 fixed in the rotation direction.

  The set torque in each of the torque limiter 112 and the torque limiter 113 is a value obtained by equally allocating torque necessary for rotation of the winding drive shaft 101 (hereinafter referred to as necessary torque). For example, the required torque is 392 mN. In the case of m, each set torque in the torque limiter 112 and the torque limiter 113 is 196 mN · m.

  FIG. 7 shows the results of an endurance test using the torque limiter 112 and the torque limiter 113 with a set torque of 196 mN · m. In the endurance test, the belt 4 having a length of 300 m was used, and the torque applied to the take-up drive shaft 101 by the torque limiter 112 and the torque limiter 113 was measured for each number of turns. As a comparison, an endurance test using one torque limiter with a set torque of 392 mN · m was also performed.

  As a result, when one torque limiter with a set torque of 392 mN · m is used, if the belt-like mount 4 for 4 turns (1.2 km) is run, the measured torque becomes 340 mN · m or less and breaks. On the other hand, when the torque limiter 112 and the torque limiter 113 with a set torque of 196 mN · m are used, the torque measurement value is maintained at 360 mN · m or more even if the strip mount 4 for 3300 turns (990 km) is used. It can be seen that it has excellent durability.

Next, a configuration for mounting the final gear 111, the torque limiter 112, and the torque limiter 113 to the winding drive shaft 101 to which the winding reel 102, the guide plate 103, and the coupling 104 are mounted will be described in detail with reference to FIG. To do.
FIG. 8 is an exploded perspective view showing a configuration for attaching the final gear and the torque limiter to the winding drive shaft shown in FIG.

  First, the retaining ring 114 is fitted into a positioning groove 101b formed on the winding drive shaft 101, and the bearing 106 mounted on the winding drive shaft 101 is positioned in the axial direction, and then the bearing 106 is supported by the winding device. The take-up drive shaft 101 is pivotally supported on the take-up device support frame 211 by fitting in an opening (not shown) of the frame 211.

  Next, the rotation stop pin 116 longer than the diameter of the take-up drive shaft 101 is passed through the through-hole 101d formed in the take-up drive shaft 101 with a loose fit, and the inner diameter is larger than the rotation stop pin 116. The retaining ring 118 is mounted on the winding drive shaft 101, and the retaining ring 118 is brought into contact with the bearing 106. When the retaining ring 118 is in contact with the bearing 106, the retaining ring 118 is disposed at a position facing the through hole 101d, and the retaining ring 118 prevents the retaining ring 118 from falling off.

  Next, the torque limiter 112 is mounted on the take-up drive shaft 101, and the inner ring of the torque limiter 112 is connected to the anti-rotation groove 112 a formed on the inner ring of the torque limiter 112. 116 is inserted into the gap between the take-up drive shaft 101 and the retaining ring 118, so that the retaining ring 118 is sandwiched between the bearing 106 and the torque limiter 112 so that the retaining ring 118 faces the through hole 101 d. While positioning, the inner ring | wheel of the torque limiter 112 and the winding drive shaft 101 are fixed in a rotation direction.

  Next, the final gear 111 is mounted on the take-up drive shaft 101, and the fixing protrusion 112b formed on the outer ring of the torque limiter 112 is fitted into a fixing hole (not shown) formed in the final gear 111. Thus, the final gear 111 and the outer ring of the torque limiter 112 are fixed in the rotational direction.

  Next, the torque limiter 113 is mounted on the winding drive shaft 101, and the fixed projection 113b formed on the outer ring of the torque limiter 112 is fitted into the fixed hole 111a formed in the final gear 111, whereby the final gear. 111 and the outer ring of the torque limiter 113 are fixed in the rotational direction.

  Next, with the through hole 101e formed in the winding drive shaft 101 and the rotation stop groove 113a formed in the inner ring of the torque limiter 113 facing each other, the rotation stopping pin longer than the diameter of the winding drive shaft 101 The inner ring of the torque limiter 113 and the take-up drive shaft are inserted into the through-hole 101e with a loose fit and the anti-rotation pin 117 protruding from the take-up drive shaft 101 is fitted into the rotation stop groove 113a. 101 is fixed in the rotation direction.

  Next, the retaining ring 119 having an inner diameter larger than that of the rotation preventing pin 117 is mounted on the winding drive shaft 101, and the retaining ring 119 is mounted on the inner ring of the torque limiter 113 so that the rotation stopping pin 117 is dropped. To prevent.

  Next, a bearing 107 fitted in an opening (not shown) of the support plate 212 is mounted on the take-up drive shaft 101, and the take-up drive shaft 101 is pivotally supported on the support plate 212, and the bearing 107, the torque limiter 113, The retaining ring 119 is positioned at a position opposite to the through hole 101 e by holding the retaining ring 115, and the retaining ring 115 is fitted into the positioning groove 101 c formed in the winding drive shaft 101, and the bearing is mounted on the winding drive shaft 101. Positioning in the axial direction 107 is performed.

  Next, the one-way hinge 108 is mounted on the winding drive shaft 101, and the one-way hinge 108 is fixed to the support plate 212 by fixing means such as screws.

  When the final gear 111, the torque limiter 112, and the torque limiter 113 attached to the take-up drive shaft 101 are removed, the above procedure is performed in the reverse order so that they can be easily removed, and the torque limiter 112 and the torque limiter are removed. The replacement of 113 can be easily performed.

  As described above, according to the present embodiment, by configuring the winding drive shaft 101 to be rotationally driven via the torque limiters 112 and 113 respectively disposed on both sides of the final gear 111, the transfer speed can be increased. As a mechanism for absorbing the speed difference between the winding speed and the winding speed, inexpensive low-torque torque limiters 112 and 113 corresponding to high-speed rotation can be used, so that the transfer speed and winding speed can be increased. In addition, the durability can be improved, and the rotational driving force transmitted to the final gear 111 is transmitted from both sides of the final gear 111 to the take-up drive shaft 101, respectively. The load on the arranged torque limiters 112 and 113 is not biased, and the durability can be further improved. The effect say.

  Furthermore, according to the present embodiment, a plurality of torque limiters 112, 113 having the same set torque are arranged on both sides of the final gear 111, thereby providing a plurality of torque limiters. It is possible to prevent the load from acting evenly on the torque limiters 112 and 113 and to damage the load due to the torque limiters 112 and 113 being damaged. Therefore, the durability is improved.

  In the present embodiment, the take-up drive shaft 101 is rotationally driven via the two torque limiters 112 and the torque limiter 113 respectively mounted on the take-up drive shaft 101 on both sides of the final gear 111. However, an even number (4 or more) of torque limiters are used, and the same number of torque limiters are wound around the winding shaft 101 on both sides of the final gear 111, and the even number (4 or more) of torque limiters are passed through. Thus, the winding drive shaft 101 may be driven to rotate. In addition, each set torque in the even number (four or more) torque limiters is a value obtained by equally allocating necessary torque.

  Note that the present invention is not limited to the above-described embodiments, and it is obvious that the embodiments can be appropriately changed within the scope of the technical idea of the present invention. In addition, the number, position, shape, and the like of the constituent members are not limited to the above-described embodiment, and can be set to a number, position, shape, and the like that are suitable for implementing the present invention. In each figure, the same numerals are given to the same component.

It is a perspective view which shows the structure of the label sticking apparatus with which embodiment of the winding apparatus which concerns on this invention is used. It is a schematic side view which shows the structure of the label sticking apparatus with which embodiment of the winding apparatus which concerns on this invention is used. It is a perspective view which shows the external appearance structure of embodiment of the winding apparatus which concerns on this invention. It is a disassembled perspective view which shows the attachment structure of the take-up reel to the take-up drive shaft shown in FIG. It is explanatory drawing for demonstrating rotation operation | movement with a winding drive shaft and a winding reel. It is a perspective view which shows the structure of the drive mechanism of the winding drive shaft in embodiment of the winding apparatus which concerns on this invention. It is a figure which shows the durability test result of the torque limiter shown in FIG. It is a disassembled perspective view which shows the attachment structure of the last gear and the torque limiter to the winding drive shaft shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Winding device 2 Label sticking device 3 Label 4 Band-shaped mount 5 Conveyor 6 Adhering body 7 Label continuous body 21 Main body frame 22 Label supply part 23 Transfer part 24 Peeling plate 25 Tension roller 26 Sticking roller 27 Label detection sensor 28 Tension roller 101 Winding drive shaft 101a Rib 101b, 101c Positioning groove 101d, 101e Through hole 102 Take-up reel 102a Fixing protrusion 103 Guide plate 103a Fixing hole 103b Free fitting groove 104 Coupling 104a Free fitting protrusion 104b Spring fixing groove 105 Torsion spring 105a Coupling Fixed end 105b Reel fixed end 106, 107 Bearing 108 One-way hinge 109, 110 Gear 111 Final gear 111a Fixing hole 112 Torque limiter 112a Anti-rotation groove 112b Fixed protrusion 113 Torque limiter 113a Anti-rotation groove 113b Fixed protrusion 114, 115 Retaining ring 116, 117 Anti-rotation pin 118, 119 Retaining ring 211 Winding device support frame 212 Support plate 221 Supply reel 222, 223 Guide plate 231 Transfer roller 232 First nip roller 233 Second nip roller

Claims (3)

Used for a label sticking apparatus that transports a label continuous body in which a plurality of labels are temporarily attached to a belt-like mount at intervals, and peels the label from the belt-like mount and sticks it to an adherend, and is rotationally driven. A take-up device for taking up the strip-like mount from which the label has been peeled off by rotating a take-up drive shaft in the take-up direction;
A final gear that is mounted on the winding drive shaft and to which a rotational driving force for rotating the winding drive shaft is transmitted;
A plurality of torque limiters respectively disposed on both sides of the final gear ;
A take-up reel that is mounted on the take-up drive shaft, rotates following the rotation of the take-up drive shaft, and winds up the belt-like mount;
A guide plate fixed to the take-up reel,
The take-up drive shaft and the take-up reel are predetermined in the rotation direction via a coupling that is mounted on the take-up drive shaft and a guide plate that is urged in the direction of rotation in the take-up direction with respect to the coupling. It is attached with a play angle of
The final gear is idle with respect to the winding drive shaft;
The rotary driving force transmitted to the final gear drives the winding drive shaft to rotate through a plurality of the torque limiters. Loose fitting protrusions formed on opposite surfaces of the coupling facing the guide plate;
A loosely fitting groove formed in an arc shape on the guide plate and loosely fitting the loosely fitting protrusion;
Located between the guide plate and the coupling, is mounted on the take-up drive shaft, one end is locked to the coupling and the other end is locked to the guide plate, and the guide plate is rotated with respect to the coupling. A torsion spring biasing in the direction,
The winding device according to claim 1 , comprising: The winding device according to claim 1 or 2, wherein the winding drive shaft is mounted around a one-way hinge .

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