JP4494806B2 - Label sticking device and sticking method - Google Patents

Description

  The present invention relates to a label sticking apparatus and a sticking method, and more specifically, peels off the label from a label base material on which a label is temporarily temporarily attached to a strip-like release sheet at approximately equal intervals. When sticking to a label, a label sticking device and a sticking device that does not cause a sticking leak of a label on an adherend conveyed at a predetermined timing even if there is a partial missing label (so-called missing tooth). It relates to how to wear.

  2. Description of the Related Art Conventionally, for example, a label sticking device that can automatically stick a campaign label or the like to an adherend transported on a transport device such as a belt conveyor is known. This label sticking device is provided with a feeding means for feeding out a label base material in which a label is temporarily attached to one surface of a strip-like release sheet wound in a roll shape, and the labels are sequentially peeled off in the course of feeding out the label base material. And a peeling means composed of a peel plate or the like to be adhered to the adherend, and a driving means for applying an intermittent feeding force at a predetermined pitch to the label base material.

According to such a label sticking apparatus, the labels can be peeled off one by one from the adherend transported via the transport device and automatically pasted, and a predetermined display can be displayed. Can be attached.
However, the label base material applied to the label sticking apparatus may be in a so-called tooth-missing state in which a label that should originally exist is not partially present for some reason in the manufacturing process. Therefore, when a roll-shaped label base material partially including such a tooth-missing state is used in a label sticking device, the adherend is not stuck to the adherend to which the label is to be stuck. This causes the inconvenience of being transported.

  By the way, for example, Patent Documents 1 and 2 disclose a label sticking apparatus that employs a label detection unit that can detect whether or not the above-described tooth missing exists in a label base material.

JP-A-60-172635 JP-A-62-208339

  However, Patent Documents 1 and 2 prevent label sticking leakage by continuing the feeding of the label as it is until the next label reaches the sticking standby position even if the label is in a tooth-missing state. The label feeding speed is not temporarily increased, for example, at a speed that is several times faster. Therefore, for example, when the adherends are transported at high speed in close contact with each other, even if the next adherend reaches the label sticking position, the next label supply cannot be made in time, and label sticking is not possible. This causes the inconvenience of causing leakage.

[Object of invention]
The present invention has been devised paying attention to such inconveniences, and its purpose is to temporarily and rapidly feed out a subsequent label when a so-called label missing state is detected, Provide a label sticking device and sticking method that does not cause label sticking leakage by supplying the next label to the sticking standby position until the next adherend reaches the level sticking position. There is to do.

In order to achieve the above object, the present invention provides a feeding means for feeding out a label base material on which a label is temporarily attached to one surface of a strip-like release sheet; In a label sticking apparatus provided with a peeling means for sticking to an adherend conveyed at the timing, and a drive means for giving intermittent feed output at a predetermined pitch to the label base material,
Further comprising a detecting means arranged along the feeding direction of the label base material to detect the presence or absence of the label,
The detection means is disposed at two locations along the feeding direction of the label base material, and the mutual separation distance is set shorter than the length of the label and longer than the interval between adjacent labels. Consists of first and second label sensors,
When neither the first label sensor nor the second label sensor detects a label, the driving means temporarily raises the label feeding speed and feeds the next label that follows. . At this time, it is preferable that the detection means is disposed in the region of the peeling means, and at least the first label sensor is provided at a position where the most advanced label at the sticking standby position can be detected.

In order to achieve the above object, the present invention provides a feeding means for feeding out a label base material on which a label is temporarily attached to one surface of a strip-like release sheet; In a label sticking apparatus provided with a peeling means for sticking to an adherend conveyed at the timing, and a drive means for giving intermittent feed output at a predetermined pitch to the label base material,
Further comprising a detecting means arranged along the feeding direction of the label base material to detect the presence or absence of the label,
The detection means is disposed at two locations along the feeding direction of the label base material, and is set in a state in which the mutual separation distance is shorter than the length of the label and longer than the inter-label pitch between adjacent labels. Constituted by the first and second label sensors,
When neither the first label sensor nor the second label sensor detects a label, the driving means temporarily raises the label feeding speed and feeds the next label that follows. . At this time, it is preferable that the detection means is disposed in the region of the peeling means, and at least the first label sensor is provided at a position where the most advanced label at the sticking standby position can be detected.

Furthermore, the label sticking method according to the present invention includes a feeding means for feeding out a label base material on which a label is temporarily attached to one surface of a strip-like release sheet, and the labels are sequentially peeled in the middle of feeding out the label base material. It is disposed along a feeding direction of the label base material, a peeling means for sticking to an adherend conveyed at a predetermined timing, a driving means for applying an intermittent feeding force to the label base material at a predetermined pitch, and the label base material. In addition, in a label sticking method using an apparatus provided with a detecting means for detecting the presence or absence of the label,
Detecting the preceding label along the feeding direction of the label substrate and the label following the label by the detecting means;
When the detection means detects a missing label that follows, the label feeding speed is temporarily increased to feed the next label that follows further.

According to the present invention, it is possible to detect whether or not there is a partial label omission based on the state of the ON-OFF signal of the first label sensor and the second label sensor. When the presence of the label is detected, the label base material can be fed out at a preset feeding speed, and the labels can be sequentially attached to the adherend conveyed in accordance with the feeding speed. Here, even though the label that should originally exist is not detected, if the feeding is performed at the set feeding speed, the adherend corresponding to the label has passed the label attaching position, and the label Will not be attached. According to the present invention, by rapidly feeding out the label positioned thereafter, the amount of the label that has not been detected can be absorbed, and the label can be reliably attached to the adherend. Note that the feeding speed in this case can be dealt with without difficulty, for example, by temporarily setting it to several times the speed.
In addition, in the configuration in which each of the label sensors is arranged in the area of the peeling means, it becomes possible to have a relationship with the label at the sticking standby position (position just before peeling), and it is necessary to consider time lag etc. It is possible to impart high responsiveness. In other words, when a configuration is adopted in which a label positioned several times before the position immediately before peeling (for example, a label positioned ten sheets before) is detected, it is detected that the label should be in a missing state. Therefore, it becomes necessary to control the number of intermittent operations (10 intermittent feeds) until it is sent to the position immediately before peeling. However, if the configuration is such that the label immediately before peeling is detected, such a count control is not required, so the speed can be controlled immediately, and in this respect, high responsiveness can be imparted. Further, even if unintentional slack or the like occurs in the label base material, it is not adversely affected by the slack.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
FIG. 1 shows a schematic plan view of the label sticking apparatus according to the first embodiment, and FIGS. 2 and 3 show enlarged views of main parts. In these drawings, the label sticking device 10 is supported by a frame F and feeds a label base material A on which labels L are temporarily attached to one surface of a strip-like release sheet S at equal intervals. The feeding means 11, the peeling means 12 for sequentially peeling the label L in the course of feeding the label base material A and sticking it to the adherend W, and the drive for giving the label base material A intermittent output at a predetermined pitch. In order to collect the release sheet S after being peeled off by the peeling means 12 and the detection means 14 for detecting the presence or absence of the label L, being arranged along the feeding direction of the means 13 and the label substrate A And a winding roller 16 that is driven to rotate in synchronization with the driving means 13 by a motor that does not.
The adherend W is mainly a can container or the like which is continuously transported in a state of being substantially in contact with each other by a transport device 17 such as a belt conveyor, and the label is attached to the outer peripheral surface of the adherend W. L can be attached. Although not particularly limited, in this embodiment, the adherend W is conveyed at a speed of 100 m to 300 m per minute, while the label base material A is intermittently fed at a speed corresponding to this. It is provided so that it can.

  The frame F has a plate-like shape that is substantially trapezoidal, and is supported by passing a support shaft 21 (not shown) on the column frame side through a block 20 fixed to the upper end of the frame F in the figure. Yes.

  The feeding means 11 is constituted by a reel 23 rotatably provided on a support arm 22 projecting obliquely upward from the upper part of the frame F. The reel 23 supports a roll-shaped label substrate A. Thus, the label substrate A can be fed out. Although not shown here, the reel 23 gives a constant feeding resistance when the label base material A is fed out, so that a constant tension is applied to the fed label base material A. Is granted.

  The label base material A fed from the feeding means 11 is supplied to the peeling means 12 through the guide rollers 24 and 25. The peeling means 12 is constituted by a peel plate 27 fixed to a plate-like support member 26 fixed to the lower part of the frame F and projecting outward from the lower part. The peel plate 27 is provided with a tapered tip, and the label L on the release sheet S can be peeled sequentially by abruptly reversing the feeding direction of the label substrate A at the tip position. Yes. Here, in the surface of the peel plate 27, there is a punch hole 27A (see FIGS. 4 and 5) for detecting the presence or absence of the label L in the passage region of the label base material A slightly in front of the tip. Is formed.

  The detection means 14 is arranged in the area of the punched hole 27A. As shown in FIG. 6, the detection means 14 is provided on the most advanced label L1 at the sticking standby position where a length specified in a range of 3 mm to 5 mm is projected from the tip side of the peel plate 27, for example. The first label sensor 30 is located at least in the area, and the second label sensor 31 is located upstream of the first label sensor 30 in the feeding direction. The first and second label sensors 30 and 31 are constituted by light transmissive sensors including a pair of upper side light emitting elements and lower side light receiving elements above and below the hole 27A. The presence or absence of the label L can be detected through the surface of the label substrate A passing through the 27A region. Here, the mutual separation distance between the first and second label sensors 30 and 31 is set to be shorter than the length (full length) along the feeding direction of the label L and longer than the inter-label pitch P. These sensors 30 and 31 output an ON signal when the label L exists, and output an OFF signal when the label L does not exist. Therefore, in a state where any one of the first and second label sensors 30 and 31 outputs an ON signal, it can be specified that the label L is normally present on the release sheet S, while any label is present. It can be specified that the above-mentioned tooth missing has occurred while the sensors 30 and 31 are also outputting the OFF signal.

  The first and second sensors 30 and 31 are supported by block-shaped sensor holders 35 and 36 arranged at symmetrical positions, respectively. These sensor holders 35 and 36 are respectively supported by a substantially square upper support plate 38 and a lower support plate 39 arranged along the feeding direction of the label base material L, and the upper support plate 38 supports the peel plate 27. A plate-like support arm 41 oriented in the transverse direction is supported in a position-adjustable state. The support arm 41 is fixed to the upper surface of a substantially prismatic base block 43 extending along the feeding direction of the label base material A at one end in the width direction of the peel plate 27, and on both sides in the longitudinal direction of the base block 43, An upstream roller 44 and a downstream roller 45 extending substantially parallel to the extending direction of the support arm 41 are disposed. Each of these rollers 44 and 45 acts to regulate the lifting of the label base material A that is fed along the upper surface of the peel plate 27. The lower support plate 39 is held on the peel plate 27 in a state in which the position can be adjusted in the same manner as the upper support plate 38 while being received on the lower surface side of the peel plate 27.

  The drive means 13 includes a drive roller 50 disposed in the vicinity of the guide roller 49 in the plane of the frame F, a pinch roller 51 that sandwiches the release sheet S between the outer peripheral surface of the drive roller 50, and A driven pulley 54 that is fixed on the same axis as the rotating shaft 52 of the driving roller and is located on the back side of the frame F, a servo motor M provided along with the driving roller 50, and an output shaft 57 of the servo motor M The main driving pulley 58 is fixed and positioned on the back side of the frame F, and the belt 60 is wound around the main driving pulley 58 and the driven pulley 54.

  The pinch roller 51 is supported by an arm 62 that is rotatably supported in a cantilever posture on the back side of the frame F. The arm 62 is always on the outer peripheral surface of the drive roller 50 via a coil spring 63. It is urged to be pressed. Further, on the free end side (left end side in FIG. 1) of the arm 62, an operation shaft 65 protruding from the front side of the frame F in the direction orthogonal to the paper surface is disposed through the slot hole 66. By grasping and pulling upward, a gap can be formed between the pinch roller 51 and the driving roller 50, whereby the release sheet S can be routed.

  Next, the operation in the embodiment will be described with reference to FIG.

  As an initial operation, the label base material A is pulled out from the reel 23, hung around the tip of the peel plate 27 through the guide rollers 24 and 25, the label base material A is sandwiched between the drive roller 50 and the pinch roller 51, and then the lead The end is fixed to the winding roller 16. At this time, at the front end of the peel plate 27, the front end side of the most advanced label L1 serving as a sticking standby position protrudes a specific length in a range of 3 mm to 5 mm, for example, and the first and second labels. The sensors 30 and 31 are set so as to simultaneously detect the label L1 and the subsequent label L2 and to be in the ON signal output state (see FIG. 4). Further, the feeding speed is set to the same speed as the conveyance speed of the adherend W, for example, 100 m / min, and, for example, 200 m / min is set as the temporary feeding ascent speed when a missing tooth is detected. Keep it. These settings are made via a control device (not shown) that controls the drive means 13 and the like described above.

  In the above state, when the adherend W transported through the transport device at a transport speed of 100 m / min is detected through a sensor (not shown), the label base A is made the same as the transport speed by the servo motor M. It is fast-fed and the state-of-the-art label L1 is adhered to the surface of the adherend W while being peeled from the peel plate 27. Here, the first and second label sensors 30 and 31 periodically output an ON-OFF signal during the feeding process as shown in FIG. Become. That is, as shown in FIGS. 6A to 6C, the presence of the labels L1 and L2 is detected in a state where at least one of them outputs an ON signal. As shown by the dotted line in FIG. 6D, when the label L2 is not present, the first and second label sensors 30 and 31 output OFF signals at the same time. Detected as When such missing teeth are detected, the label base material A is temporarily fed out at 200 m / min, and the subsequent label L3 is fed out at a high speed without delaying the adherend W. Affixed. That is, by temporarily raising the feeding speed with respect to the distance that should be fed out and feeding the subsequent label L3 further, the position (sticking) where the first label sensor 30 detects the further subsequent label L3. Arrival standby position). The sticking standby position is a position where the motor M is driven for a predetermined pulse after the label sensor 30 detects the leading end of the label (ON state) and then stops. That is, if the feeding speed is increased so that the label L3 can reach the sticking standby position before the start of the sticking operation of the adherend W to be stuck is detected by the adherend detection sensor. It will be good. This speed increase can be performed by controlling the motor using a timer or a clock pulse according to the length of the label L and the pitch between labels. Therefore, even if the label L is missing, the label L can be reliably adhered to the adherend W without leakage without stopping the conveyance of the conveyance device 17. In addition, when a plurality of missing states of the label L occur continuously, it is sufficient to temporarily stop the conveyance of the conveying device 17, but the length of the label L and the adherend W are fed. Since the speed setting for high-speed feeding can be arbitrarily changed by the coming pitch, it is possible to cope with it.

  Therefore, according to such 1st Embodiment, the label L can be stuck continuously, without stopping the driving | operation of the whole apparatus, especially each to-be-adhered body like a drinking can etc. The label sticking apparatus which can perform sticking efficiently when it is the target object conveyed continuously in the state which touches can be provided.

[Second Embodiment]
FIG. 7 shows a second embodiment according to the present invention. This embodiment is characterized in that the relative separation distance between the first sensor 30 and the second label sensor 31 is set to a length located in the area of the two labels L and L. That is, the first label sensor 30 and 31 simultaneously detect the label L1 in the state where the feeding is stopped at the preceding sticking standby position and the label L2 that follows the first label sensor. It is configured so that the label L3 is judged to be missing on the condition that the second label sensor 31 is outputting the OFF signal while the 30 is in the ON signal output state, and the subsequent label L3 is temporarily fed out at a high speed. Has been. At this time, the normal set feeding speed is set until the preceding label L1 is completely peeled off, and after the peeling is completed, the label L3 is fed to the sticking standby position at a high speed. As a result, the feeding speed is temporarily increased with respect to the distance that should be fed out, and the subsequent label L3 is fed out to a position where the first label sensor 30 detects the further following label L3. Can be reached.

  Therefore, according to such 2nd Embodiment, the label L can be stuck continuously, without stopping the driving | operation of the whole apparatus.

Although the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, the present invention is not limited to this.
That is, the invention has been illustrated and described primarily with respect to particular embodiments, but the embodiments described above are within the scope of the technical idea and purpose of the invention. On the other hand, those skilled in the art can make various changes in other detailed configurations such as shape, position, and component configuration.
Therefore, the description limited to the shape, position, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such is included in this invention.

  For example, the first and second sensors 30 and 31 are light transmission type sensors, but may be replaced with a light reflection type sensor or a touch sensor depending on the properties of the label substrate A. In short, the present invention can use various sensors as long as the preceding label L1 and the following label L2 can be detected.

  INDUSTRIAL APPLICATION This invention can be utilized as an apparatus which sticks a label on the outer surface side by making the container etc. which are conveyed on a conveying apparatus into a to-be-adhered body.

The schematic front view of the sticking apparatus which concerns on 1st Embodiment. The principal part enlarged view of FIG. The enlarged front view of a peeling means area | region. FIG. 4 is a plan view of FIG. 3. The schematic perspective view which expands and shows a peeling means and a detection means. (A) thru | or (D) is operation | movement explanatory drawing in the said embodiment. (A) thru | or (B) is operation | movement explanatory drawing which concerns on 2nd Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Label sticking apparatus 11 Feeding means 12 Peeling means 13 Drive means 14 Detection means 17 Conveyance apparatus 27 Peel plate 30 1st label sensor 31 2nd label sensor A Label base material L Label L1 Preceding label L2 Following label L3 Further following label S Release sheet

Claims (5)

A feeding means for feeding out a label base material with a label temporarily attached to one surface of a strip-like release sheet, and a label is peeled off in the course of feeding out the label base material, and then attached to an adherend to be conveyed at a predetermined timing. In a label sticking apparatus comprising: a peeling means for attaching; and a driving means for providing intermittent output at a predetermined pitch to the label base material;
Further comprising a detecting means arranged along the feeding direction of the label base material to detect the presence or absence of the label,
The detection means is disposed at two locations along the feeding direction of the label base material, and is set in a state in which the mutual separation distance is shorter than the length of the label and longer than the inter-label pitch between adjacent labels. Constituted by the first and second label sensors,
When neither the first label sensor nor the second label sensor detects a label, the driving means temporarily raises the label feeding speed and feeds the next label that follows. Landing gear. The detection means is disposed in an area of the peeling means, and at least the first label sensor is provided at a position where a state-of-the-art label at the sticking standby position can be detected. The label sticking apparatus according to 1. A feeding means for feeding out a label base material with a label temporarily attached to one surface of a strip-like release sheet, and a label is peeled off in the course of feeding out the label base material, and then attached to an adherend to be conveyed at a predetermined timing. In a label sticking apparatus comprising: a peeling means for attaching; and a driving means for providing intermittent output at a predetermined pitch to the label base material;
It is arranged along the feeding direction of the label base material, and further comprises a detecting means for detecting the presence or absence of the label,
The detection means includes a first label sensor that detects a preceding label, and a second label sensor that detects a label that immediately follows the preceding label,
When intermittent feeding of the label base material is stopped and the first label sensor detects a preceding label, the second label sensor does not detect the following label. The label sticking apparatus characterized in that the driving means temporarily raises the label feeding speed and feeds the next label that follows further from the middle of the feeding operation. The detection means is disposed in the area of the peeling means, and the first label sensor detects the most advanced label at the sticking standby position, while the second label sensor detects the most advanced label. 4. The label sticking apparatus according to claim 3, wherein a label that is located immediately after and detects a subsequent label is detected. A feeding means for feeding out a label base material with a label temporarily attached to one surface of a strip-like release sheet, and a label is sequentially peeled off while the label base material is being fed out and attached to an adherend that is conveyed at a predetermined timing. A peeling means for attaching, a driving means for applying intermittent feeding output to the label base material at a predetermined pitch, and a detecting means for detecting the presence or absence of the label while being arranged along the feeding direction of the label base material In the label sticking method using the apparatus provided with
Detecting the preceding label along the feeding direction of the label substrate and the label following the label by the detecting means;
A label adhering method, wherein when the detecting means detects a missing label that follows, the label feeding speed is temporarily increased to feed the next label that follows further.

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