JPH0159176B2 - - Google Patents

Description

[Detailed description of the invention]

<Industrial Application Field> The present invention relates to a labeling device for a winding mechanism, and more specifically, when winding up a synthetic resin sheet or the like and fixing the end with a label, the labeling device can reliably perform the labeling operation. We are trying to provide equipment. <Prior art> Conventionally, in production lines for synthetic resin sheets such as foamed polystyrene sheets, it has become possible to automate most of the processes from sheet extrusion molding to sheet unwinding to perform continuous work. ing. Then, in the sheet winding machine,
To prevent the sheet from unrolling, the end of the sheet is fixed with an adhesive label, and a labeling device is used to attach the label. In this type of labeling device, the label tape is bent at an acute angle while running, the label and the release tape are separated, and only the label is fed out. A mechanism for applying pressure to the surface of the fabric is known (for example, manufactured by Nippon Postal Franca Co., Ltd.; see labeling device, etc.). <Problems to be Solved by the Invention> However, with the above-mentioned conventional device, the rotational speed of the winding torque motor of the winding machine fluctuates, and the rotational speed of the unwinding may not be constant. Because the winding diameter of the reel is not constant, the surface speed may vary even at the same rotation speed.As the mechanical loss between the labeling device and the winder is different, it may be difficult to synchronize the two. Also, the operator may make a setting error when adjusting the speed to synchronize the label feeding speed and the surface speed of the rewind. In some cases, the labels are not the same, resulting in troubles such as failure to attach, entanglement of release tape, or double attachment of labels. The above-mentioned trouble in attaching the label has also caused problems in the subsequent handling of the roll, resulting in problems such as product scrap, complaints, and an increase in work man-hours. Therefore, various improvement measures have been taken, but currently the success rate of labeling can only be improved to about 98 to 99%, which has been a major obstacle to fully automating sheet production lines. In particular, there is a need for further improvements to the above-mentioned labeling apparatus, in view of not only the automation of sheet production but also the introduction of robots into logistics lines for transporting and handling rolls. Therefore, the present invention aims to solve the above-mentioned drawbacks of the conventional device, and to provide a convenient labeling device that causes almost no labeling troubles and does not require any adjustment even if the winding conditions in the winder change. There is. <Means for solving the problems> In order to solve the above problems, the configuration of the present invention is as follows.
It has a drive mechanism that bends a label tape with an adhesive label affixed to one side of the release tape at an acute angle and runs the release tape after separating the labels to a collection section, and near the bent part of the label tape there is a , a label sticking roll is provided which rotates in contact with the label pasting roll and presses and pastes the label separated by the bending of the label tape onto the roll, and between the label pasting roll and the drive mechanism. for,
A clutch mechanism and a brake mechanism are provided to control the driving of the drive mechanism which is driven in synchronization with the label pasting roll, and the actuation timing of the clutch mechanism and brake mechanism is detected by a sheet end detection mark formed on the unrolled sheet. The present invention is characterized in that it is equipped with a control mechanism that can be freely controlled by the output signals of the label detection sensor and the label detection sensor. <Function> According to the labeling device of the present invention configured as described above, the rotational force of the labeling roll that rotates in contact with the roll is transmitted to the drive mechanism for running the label tape, so that the labeling device can easily label the label. It is possible to synchronize the unwinding speed and the surface speed of the unwinding. Even if there are fluctuations in the number of rotations of the rewind or changes in the reel diameter, labels can be affixed in sync without adjustment. Since it is equipped with a control mechanism that can freely control the activation timing of the clutch mechanism and brake mechanism using the output signals of the sensor for detecting the sheet end detection mark formed on the unwinding sheet and the sensor for label detection, it is possible to You can time the start and stop of travel and attach labels to the winding terminal. <Example> Next, examples of the present invention will be illustrated below with reference to the drawings. First, the label tape T used in the labeling apparatus of the present invention will be explained. As shown in Fig. 1, the label tape T has a release surface side of the release tape t made of synthetic resin or paper.
It is made of kraft paper or the like, and a label r with an adhesive layer formed on one side is temporarily attached. The labels r are in the form of strips of appropriate length, and are sequentially temporarily adhered to the release tape t at appropriate intervals, and the gaps between the labels r are used for label detection, which will be described later. The label tape T usually uses a rolled tape wound around a core tube made of cardboard or the like, and in the case of the figure, the label tape T is wound so that the label r is on the inner side of the rolled tape. The entire labeling device is shown in FIGS. 2 to 4, and 10 is a holding part for the label tape T.
A thin circular tube is horizontally protruded from the device frame 2, and serves as a core tube P of the winding tape of the label tape T.
is inserted into a holding portion 10 made of a circular tube with a smaller diameter than the core tube P, and is rotatably locked therein. Holding part 1
A thin rod-shaped folding bar 11 is placed diagonally below 0.
are provided horizontally protruding from the device frame 2, and thin rod-shaped guide rods 1 are provided at the left and right ends of the folding bar 11.
2 and 12 are attached so that the tips of the guide rods 12 and 12 come into contact with the upper surface of the holding part 10. Then, the unrolled label tape T fitted into the holding part 10 is held between the guide rods 12, 12 to prevent the label tape T from shifting or swinging to the left or right, and the running direction of the label tape T is reversed using the folding bar 11. change direction. 3 is a guide plate, and the guide plate 3 has a rectangular shape.
is attached obliquely downward from directly below the folding bar 11, and the label tape T is run along the upper surface of the guide plate 3. 30 is a guide roll for making the label tape T run along the guide plate 3. A label detection sensor 4 is provided halfway up the guide plate 3.
The presence or absence of the label r on the label tape T can be detected. The label detection sensor 4 is preferably an optical sensor using a phototube or an optical semiconductor, but other non-contact sensors can also be used. Next, 13 is a drive roll for the label tape T;
Reference numeral 4 denotes an auxiliary roll that rotates in contact with the upper part of the drive roll 13, and the label tape T that has run diagonally downward along the guide plate 3 is moved to the tip 3 of the guide plate 3.
1, it is bent horizontally at an acute angle and run in the opposite direction, then it is sandwiched between the driving roll 13 and the auxiliary roll 4, meandering in an S-shape, and sent upward. Note that at the position of the drive roll 13, the label r of the label tape T is separated and only the release tape t runs. A label tape T collecting section 15 is provided diagonally above the drive roll 13 and the auxiliary roll 14, and in the case of the figure, a thin circular tubular winding drum is rotatably mounted horizontally to the device frame 2. A winding drum 15 constitutes this collecting section.
, the used release tape t out of the label tape T
Wrap it around and collect it. Next, a barrel-shaped labeling roll 5 is rotatably provided in front of the guide plate tip 31, which is the bending part of the label tape T, and this labeling roll 5 is used for winding the labeling tape M. The winding M contacts the outer circumferential surface of the winding M, and is rotated by the rotational force of the winding M. Then, as the label tape T runs while being bent at an acute angle at the bending part 31 at the tip of the guide plate 3, the label r, which cannot be bent with respect to the flexible release tape t, is fed diagonally downward from the tip of the guide plate 3. This fed-out label r comes into contact with the label pasting roll 5 and is caught in the rotation of the roll 5, so that the label r is pressed and pasted onto the roll M. As described above, the label tape T runs and the label r is pasted. The drive mechanism of the drive roll 13 and the like will be explained with reference to FIG. 3. First, as described above, the labeling roll 5 is driven by the rotational force of the winder M. This labeling roll 5 is then transmitted to and driven by a drive roll 13 and a winding drum 15. Reference numeral 6 denotes a clutch brake that serves as both a clutch mechanism and a brake mechanism, and can transmit or block the rotation of the input shaft to the output shaft and control the rotation of the output shaft. A pulley 60 is attached to the input shaft of the clutch brake 6, and a label pasting roll 5 is attached to the input shaft of the clutch brake 6.
A timing belt 61 connects the roller 5 and a pulley 50 coaxially mounted, and transmits the rotational force of the roll 5 to the clutch brake 6. Incidentally, the timing belt 61 is mounted across the belt so that the clutch brake 6 rotates in the opposite direction to the labeling roll 5. The output shaft of the clutch brake 6 is the drive roll 13
A belt 64 is stretched between the winding drum 15 and a pulley 63 mounted coaxially with the winding drum 15 so that the winding drum 15 rotates in synchronization with the drive roll 13. There is. Therefore, the label tape T is caused to run by the rotation of the drive roll 13 and the winding drum 15. The operation of the clutch brake 6 is electrically controlled by a control panel 7, as shown in FIG. m is a sheet end detection mark formed on the outer circumferential surface of the winding M; this mark m is detected by an optical sensor such as a phototube 70, and a signal is sent to the control panel 7. Information on the sheet end position detected by this phototube 70,
Information on the label position detected by the label detection sensor 4 is received by the control panel 7, and the clutch brake 6 is commanded to operate. Next, the operation of the entire labeling apparatus of the present invention will be explained with reference to FIG.
The clutch brake 6 is operated in response to a command from the control panel 7 to engage the clutch, and the rotation of the labeling roll 5 rotating together with the winding material M is transmitted to the drive roll 13 and the winding drum 15. Then, the label tape T is pulled out from the holding part 10 and runs on the guide plate 3.
After being bent at an acute angle at the tip 31 of the sheet, the sheet travels through a drive roll 13 and an auxiliary roll 14 to a winding drum 15 and is collected. Then, by bending the label tape T at an acute angle, the label r is separated from the release tape t and fed out to the labeling roll 5 side. The fed-out label r is wound around the pasting roll 5 and is pasted onto the roll M by pressure. When the label tape T travels a certain amount, the label detection sensor 4 detects the gap between the labels r, and the clutch brake 6 is actuated in response to a command from the control panel 7 to release the clutch, and the label pasting roll is removed. 5 to the drive roll 13 side is cut off. Further, a brake is applied to the output shaft side of the clutch brake 6 to stop the rotation of the drive roll 13 side. In this way, when the label r is completely pasted onto the roll M, the label tape T stops running, and one labeling process is completed. As mentioned above, the operation of the clutch brake 6 is
The control panel 7 receives output signals from sensors such as the label detection sensor 4 and the phototube 70 for sheet end detection.
If it is electrically controlled by incorporating the information into the label tape T, the running start and stop timing of the label tape T will be accurate, and the label r pasting position on the unwinding M will also be accurate, which will prevent troubles such as poor pasting and misalignment. It becomes suitable immediately. It is assumed that the control panel 7 adjusts the actuation timing of the clutch brake 6 in accordance with the dimensions of the label r and the traveling speed. In the labeling device as described above, in the label tape T traveling mechanism, the holding section 10 includes a circular tube into which a rolled tape of the label tape T is inserted as shown, as well as a tube that holds the label tape T and sequentially pulls it out. If possible, it can be changed to various known structures; for example, it may be one that holds the label tape T in a folded state. In addition, in the case of the figure, the installation position of the holding part 10 is that it is provided above the guide plate 3, and the running direction of the drawn-out label tape T is reversed by the folding bar 11, but the holding part 10 is If the folding bar 11 is provided on the extension line of the guide plate 3, the folding bar 11 is not necessary. Furthermore, the guide rod 12
In addition, an appropriate guide mechanism is provided to label tape T.
It can also stabilize the running of the vehicle. In addition to the winding drum, the collection section 15 can be freely changed as long as it rotates in synchronization with the drive roll 13 and can collect the used release tape t. The drive roll 13 is combined with the upper auxiliary roll 14 to ensure that the label tape T can run, but the way the rolls are combined can be changed freely, and the installation position of the drive roll 13 can also be adjusted to match the label tape T. It can be changed freely as long as it is behind the bending point. The guide plate 3 can be freely changed as long as it has a bending structure such as the tip 31 that can bend the label tape T at an acute angle. For example, a thin roller or rod may be provided in place of the guide plate 3. Then, the label tape T may be bent. Next, by connecting the label pasting roll 5 and the clutch brake 6 with a timing belt 61, rotation transmission is ensured, but it is also possible to change to a roller chain, V-belt, gear transmission, or other rotation transmission mechanism. . The clutch brake 6 is preferable because it can serve both as a clutch mechanism and a brake mechanism, but a single-function clutch and brake may be provided side by side. Furthermore, the belt 64 that rotates the drive roll 13 and the take-up drum 15 in synchronism can be replaced by various rotation mechanisms similar to the timing belt 61. ●Specific example (1) Winder and label Rewinding diameter 760mm Unwinding surface speed 10 to 60 m/min Label tape Label material Kraft paper Label dimensions 45 x 200 mm Interval 5 mm (unwinding surface speed 10 to 40 m/min) 45 x 195mm interval 10mm (winding surface speed 50~60
(m/min) (2) Labeling device clutch brake MP-6 (made by SHINKO) 10% torque extinction time 55 msec 80% torque rise time 73 msec Label detection sensor MUIONR (made by Takenaka) Response delay 5 msec Control panel Optical fiber sensor 06FRX22N (Takenaka) ) Response delay: 3 msec or less (3) Test results Using the above device, labeling was performed while changing the winding surface speed, and the results shown in the table below were obtained.

[Table] From the above test results, it can be seen that the labeling device of the present invention does not cause any label sticking troubles even when the unwinding surface speed changes, and can be used suitably. <Effects of the Invention> According to the labeling device of the present invention configured as described above, the rotational force of the labeling roll that rotates in contact with the roll is transmitted to the drive mechanism for running the label tape. The repetition speed of the label and the surface speed of the rewind are completely synchronized, and even if there are fluctuations in the rotation speed of the rewind or changes in the reel diameter, labels are always applied in synchronization without any adjustment. be able to. Therefore, labeling troubles caused by poor synchronization of the conventional apparatus can be completely eliminated, and accurate and error-free labeling work can be realized. Moreover, the labeling device does not require a motor to drive the label tape at all, nor does it require a mechanism to adjust the label feeding speed.
There is also a great effect in reducing the size of the device and the cost of the device. Since it is equipped with a control mechanism that can freely control the activation timing of the clutch mechanism and brake mechanism using the output signals of the sensor for detecting the sheet end detection mark formed on the unwinding sheet and the sensor for label detection, it is possible to The timing of start and stop of running is accurate, and the position of label pasting on the reel is also accurate, which is preferable without causing troubles such as poor pasting or misalignment.

[Brief explanation of drawings]

The figure illustrates an embodiment of the invention,
FIG. 1 is a perspective view of the label tape, FIG. 2 is a front view of the labeling device, FIG. 3 is a plan view, and FIG. 4 is a rear view. , FIG. 5 is a schematic diagram showing the operating mechanism. 10... Holding part, 13... Drive roll, 15...
...Recovery section, 2...Device frame, 3...Guide plate, 31...Bending portion, 4...Label detection sensor, 5...Label pasting roll, 6...Clutch brake, 7...Control panel, 70 ...Phototube, T...
... Label tape, r... Label, t... Peeling tape, M... Unwinding, m... Sheet end detection mark.

Claims (1)

[Claims] 1. It has a drive mechanism that bends a label tape with an adhesive label affixed to one side of the release tape at an acute angle and runs the release tape after separating the labels to a collection section, is provided with a label pasting roll that rotates in contact with the label pasting roll and presses and pastes the label separated by the bending of the label tape onto the winding roll, and the label pasting roll and the drive mechanism are connected to each other. A clutch mechanism and a brake mechanism are provided in between to control the drive of the drive mechanism that is driven in synchronization with the labeling roll, and furthermore, the actuation timing of the clutch mechanism and brake mechanism is controlled by a sheet end formed on the unrolled sheet. A labeling device for a winder, characterized in that it is provided with a control mechanism that can be freely controlled by the output signals of a detection mark detection sensor and a label detection sensor.