JP4607732B2 - How to connect strip films - Google Patents

Description

  In this invention, one of the pair of strip films set in a parallel state and extending in the opposite direction from each connection end is translated so that the connection ends correspond to each other. Thus, the present invention relates to a method for connecting strip films, in which the connection ends of one strip film and the connection ends of the other strip film are overlapped or abutted with each other.

  Cylindrical labels formed of synthetic resin films, such as shrink labels and stretch labels attached to bottles, etc., are long strip labels that are folded into sheets with many labels connected continuously. It is common to mount the forming substrate on a bottle or the like while forming individual labels by sequentially cutting in a labeling device. Such a long strip-shaped label forming substrate is usually a paper tube. A base material roll wound around in the form of a roll is set in a base material delivery device of a labeling system, and is sent out to the labeling device while being continuously fed out from the base material delivery device.

  By the way, since the length of the label-forming base material that can be wound in a roll shape is naturally limited, the base material roll set in the base material feeding device must be frequently replaced, and the labeling device It cannot be operated efficiently.

  For this reason, after the label forming base material has been sent out from the base material roll, the end portion of the label forming base material is automatically connected to the starting end portion of the label forming base material fed out from the new base material roll. A base material feeding device for feeding a label forming base material from a new base material roll to a labeling device has been developed. In such a base material feeding device, for example, a connection method as shown below is adopted. .

  First, as shown in FIG. 5 (a), a new base material set at a setup position (not shown) on the side of the label forming base material M1 being sent toward the labeling device on the base material feed line SL. From the roll, the base material setting unit (not shown) feeds the label forming base material M2 onto the standby line WL, and the starting end thereof is pulled out to the connection position α as shown in FIG. The label-forming base material M1 being fed toward the labeling device is positioned on the base-material feed line SL at the connection position α by passing outside the plate-shaped inner guide IG installed at a predetermined position. The label forming base material M2 to be connected to the terminal end portion of the label forming base material M1 is separated so that the end portions of the label forming base material M1 are sandwiched by obliquely cutting off both side edges of the starting end portion. Possible pinching portions are formed.

  Subsequently, when the remaining label forming base material M1 is being sent out, the feeding of the label forming base material M1 is temporarily stopped, and as shown in FIG. After being cut, as shown in FIG. 6A, the label-forming base material M1 is slightly fed out until the terminal portion reaches the connection position α.

  Then, as shown in the figure, the label forming base material M2 waiting on the standby line WL is formed with the base material roll by the distance D between the standby line WL and the base material delivery line SL. By moving parallel to the substrate M1 side, the end portion of the label forming substrate M1 is sandwiched between the sandwiching portions formed at the starting end portion of the label forming substrate M2, as shown in FIG. By heat-sealing the overlapped portion or attaching an adhesive tape, the starting end portion of the label forming substrate M2 and the terminal end portion of the label forming substrate M1 are connected.

Japanese Patent Laid-Open No. 2004-10211

  By the way, in the base material delivery apparatus as described above, for example, as shown in FIGS. 7 and 9, the paper tube PP of the base material roll R is hooked and suspended on the two support rods 51 a of the plurality of roll support members 51. In the lowered state, the base roll R is stocked, and the roll stock means 50 for sequentially transferring the roll support members 51 to the roll take-out position γ, and the paper tube of the base roll R as shown in FIGS. A roll supply unit 60 on which a roll holder 61 capable of holding the base roll R and releasing the holding thereof by opening and closing the three chuck claws 61a inserted into the PP is provided. As shown by the one-dot chain line in FIG. 9, the roll holder 61 enters the paper tube of the base roll R suspended from the roll support member 51 that has been transported to the predetermined roll take-out position γ. paper When the tube is gripped and the roll holder 61 is retreated in this state, the base roll R is taken out from the roll support member 51, and is conveyed and set to the set-up position δ as shown by a two-dot chain line in the figure. It has become.

  Accordingly, when the operator properly suspends the base roll R from the predetermined position of the two support rods 51a of the roll support member 51, the base roll R is always suspended from the predetermined position at the roll extraction position. Therefore, the roll holder 61 can receive the base roll R in a predetermined state and set it appropriately at the set-up position δ. However, as shown in FIG. When the base roll R is suspended at a position shifted from the normal suspension position of the two support bars 51a, the label forming base M2 fed out from the base roll R set at the setup position δ is in the width direction. Will be misaligned.

  In this way, when the label forming substrate fed out from the substrate roll set at the setup position is displaced in the width direction, as in the label forming substrate connecting method described above, the label forming substrate is placed on the standby line WL. If the label forming substrate M2 that has been waiting is moved together with the substrate roll to the label forming substrate M1 side by a distance D between the standby line WL and the substrate delivery line SL, 11, the label forming substrate M2 is displaced in the width direction with respect to the label forming substrate M1 positioned on the substrate delivery line SL by the inner guide IG. There is a problem that the label-forming substrate M2 cannot be properly connected to the material M1.

  Accordingly, an object of the present invention is to provide a method for connecting strip films, in which a pair of strip films can be properly connected even when the set position of one strip film to be translated is shifted in the width direction of the strip film. There is to do.

To solve the above problems, the invention according to claim 1, so as not to overlap in the width direction, in a state of shifting the position in the width direction, the connection ends with each other so as to correspond, set in a parallel state, By translating either one of the pair of strip films extending in the opposite direction from each connection end to the other strip film side, the connection end of one strip film and the connection end of the other strip film are In the method of connecting strip films which are connected to each other in the overlapped state or the butted state, the side edge closer to the other strip film in one strip film to be translated and the center of the other strip film When a reference position is set between the strip film and one strip film is moved in parallel, it is close to the other strip film in the strip film. After the side edge reaches the reference position, the film is moved by the sum of the shortest distance SD from the reference position to the center line of the other film and the half width HW of the film. A connection method is provided.

In order to solve the above problems, the invention according to claim 2, so as not to overlap in the width direction, in a state of shifting the position in the width direction, the connection ends with each other so as to correspond, being set in a parallel state In addition, by translating either one of the pair of strip films extending in the opposite direction from each connection end to the other strip film side, the connection end of one strip film and the connection end of the other strip film In the method of connecting strip films which are connected to each other in a state where they are overlapped or butted together, the side edge farther from the other strip film in one strip film to be translated and the other strip film When the reference position is set between the edge of the belt film and the edge closer to the belt film, After the side end of the strip-shaped film far from the other strip-shaped film reaches the reference position, it is moved by the difference between the shortest distance SD from the reference position to the center line of the other strip-shaped film and the half-width HW of the strip-shaped film. The present invention provides a method for connecting strip-shaped films characterized by the above.

  Further, the invention according to claim 3 is the method for connecting the strip films of the invention according to claim 1 or 2, when the one strip film is translated, the full width FW of the strip film is measured, and from the measured value The half width HW of the strip film was calculated.

As described above, in the method of connecting filmstrip of the invention according to claim 1, so as not to overlap in the width direction, in a state of shifting the position in the width direction, so that the connection end between the corresponding set in the parallel state A reference position is set between a side end closer to the other strip-shaped film in one of the strip-shaped films to be translated, and a center line of the other strip-shaped film, and one strip-shaped film When the side edge of the belt-like film close to the other belt-like film reaches the reference position, the shortest distance SD from the reference position to the center line of the other belt-like film and the half-width of the belt-like film Since it is moved only by the sum of HW, even if the set position of one of the strip-like films to be translated is shifted in the width direction of the strip-like film, At the time of translation of Irumu is completed, it is possible to the center line of the film strip center line and the other of one of the filmstrip is consistent with the state, to properly connect the filmstrip both.

As described above, in the method of connecting filmstrip of the invention according to claim 2, so as not to overlap in the width direction, in a state of shifting the position in the width direction, so that the connection end between the corresponding set in the parallel state A reference position between a side edge farther from the other band-shaped film in one band-shaped film to be translated, and an edge closer to one band-shaped film in the other band-shaped film among the pair of band-shaped films When one of the strip films is moved in parallel, after the side edge of the strip film far from the other strip film reaches the reference position, the distance from the reference position to the center line of the other strip film is set. Since the movement is made by the difference between the shortest distance SD and the half width HW of the strip film, the set position of one strip film to be translated is Even if they are displaced in the direction, when the parallel movement of one strip film is completed, the center line of one strip film coincides with the center line of the other strip film. Can be connected.

  In the strip film connecting method of the invention according to claim 3, when one of the strip films is translated, the full width FW of the strip film is measured, and the half width HW of the strip film is calculated from the measured value. Therefore, it is not necessary to give the width information of the strip film in advance. In addition, even when the width of one strip film and the width of the other strip film are slightly different, since the center lines of both strip films are connected to each other, the difference in film width is the center. It will be allocated on both sides of the line, and the influence of the difference in film width can be minimized.

  Hereinafter, embodiments will be described with reference to the drawings. FIG. 1 is an explanatory diagram for explaining a method for connecting strip-shaped films of the present invention. Note that the steps shown in FIGS. 5A to 5C in the conventional connection method are the same in the connection method of the present invention, so that the description thereof will be omitted and the subsequent steps will be described.

  First, as shown to Fig.1 (a), the sensor S which can detect the side edge of the label formation base material M2 in the area | region where the label formation base material M2 approachs on the base material delivery line SL. It is installed and the label forming substrate M2 is moved in parallel to the label forming substrate M1 side. As the sensor S to be installed, for example, a transmissive or reflective optical sensor may be used.

  As shown in FIG. 4B, the side edge closer to the label forming substrate M1 in the label forming substrate M2 is detected by the sensor S during the movement of the label forming substrate M2, and from that position, When the label forming base materials M1 and M2 are moved by a half (half width HW) of the width W of the label forming base materials M1 and M2, the center line of the label forming base material M2 becomes the center line of the label forming base material M1 as shown in FIG. Since it corresponds to (base material delivery line SL), the terminal portion of the label forming base material M1 and the starting end portion of the label forming base material M2 are connected in this state.

  As described above, in this strip-shaped film connection method, the position at which the side edge closer to the label forming substrate M1 in the label forming substrate M2 is detected by the sensor S, that is, the center line of the label forming substrate M1 ( Since the label forming substrates M1 and M2 are moved from the position corresponding to the substrate feeding line SL) by a half (half width HW) of the label forming substrates M1 and M2, in the state before the label forming substrate M2 is moved in parallel. Even when the label-forming base material M2 is displaced in the width direction from the normal position, at the stage of connecting the label-forming base materials M1 and M2, with respect to the label-forming base material M1, The label forming substrate M2 is not displaced in the width direction, and the center line of the label forming substrate M2 can be surely matched with the center line of the label forming substrate M1. Accordingly, the terminal end of the label forming substrate M1 and the starting end of the label forming substrate M2 can always be properly connected.

  In the connection method described above, the sensor S for detecting the side edge of the label forming substrate M2 is installed on the center line (substrate feeding line SL) of the label forming substrate M1, but the present invention is not limited to this. 2A, as shown in FIG. 2 (a), the side end closer to the other label-forming substrate M1 in one label-forming substrate M2 to be translated, and the center line of the label-forming substrate M1 It is also possible to install a sensor S in between, in which case the side edge closer to the label forming substrate M1 in the label forming substrate M2 is detected by the sensor S, as shown in FIG. Only the sum of the shortest distance SD from the position of the sensor S to the center line of the label forming substrate M1 (see FIG. 5A) and 1/2 of the width W of the label forming substrates M1 and M2 (half width HW) By moving it, as shown in the figure (c) It can be matched reliably center line of the label formation base material M2 to the center line of the label formation base material M1.

  Further, as shown in FIG. 3 (a), the label forming base material M2 is in the region into which the label forming base material M2 enters and the one label forming base material M2 to be translated is farther from the other label forming base material M1. A sensor S is installed between the side end and the side end closer to the label forming substrate M2 in the label forming substrate M1, and the side end farther from the label forming substrate M1 in the label forming substrate M2 is the sensor. The shortest distance SD (see (a) in the figure) and the widths of the label forming substrates M1 and M2 from the position detected by S to the center line of the label forming substrate M1 from the position shown in FIG. By moving the difference by 1/2 of W (half-width HW), the center line of the label forming substrate M2 is surely aligned with the center line of the label forming substrate M1, as shown in FIG. be able to.

  Further, in each of the connection methods described above, it is necessary to obtain information on the width W of the label forming base materials M1 and M2 in advance, but as shown in FIG. Within the region that enters, the side end closer to the other label-forming substrate M1 in one label-forming substrate M2 to be translated, and the closer to the label-forming substrate M2 in the label-forming substrate M1 When the sensor S is installed between the label forming substrate M2 and the label forming substrate M2 is moved in parallel, the side closer to the label forming substrate M2 in the label forming substrate M1 as shown in FIG. Label formation from the time when the edge is detected by the sensor S to the time when the side edge farther from the label forming substrate M2 in the label forming substrate M1 is detected by the sensor S, as shown in FIG. Movement distance of base material M2 It is also possible to actually measure the width W of the label forming substrate M2 by actually measuring the width W of the label forming substrate M1 and the label forming substrate. Even when the width of the material M2 is slightly different, since the center lines of both the label forming base materials M1 and M2 are connected with each other, the difference in width between the label forming base materials M1 and M2 is. Thus, the label forming base material M1 is allocated on both sides of the center line (base material sending line SL), and the influence of the difference in width between the label forming base materials M1 and M2 can be minimized. In addition to the sensor S described above, a sensor for actually measuring the width of the label forming substrate M2 can be provided separately.

  Moreover, in the connection method of the label formation base material mentioned above, the termination | terminus part of label formation base material M1 is pinched | interposed into the clamping part formed in the start end part of label formation base material M2, and both the overlapping parts are heat-sealed. The adhesive tape is attached to connect the starting end of the label forming substrate M2 and the terminal end of the label forming substrate M1, but the present invention is not limited to this. You may make it connect by abutting the starting end part of M2, and the terminal part of label formation base material M1, and sticking an adhesive tape to the abutting part.

  Moreover, although each connection method mentioned above demonstrated the case where the cylindrical label formation base material folded by the sheet form was connected, the connection method of this invention is such a cylindrical label formation base material. It is needless to say that the present invention is not limited to the connection, and can be applied to connecting various belt-like films.

(A)-(c) is process drawing which shows the connection method of the label formation base material which is one Example of this invention. (A)-(c) is process drawing which shows the connection method of the label formation base material which is another Example. (A)-(c) is process drawing which shows the connection method of the label formation base material which is another Example. (A)-(c) is process drawing which shows the connection method of the label formation base material which is another Example. (A)-(c) is process drawing which shows the connection method of the conventional label formation base material. (A), (b) is process drawing which shows the connection method of the conventional label formation base material. (A) is a front view which shows the roll support member mounted in the roll stock means of a base material delivery apparatus, (b) is a side view which shows a roll support member same as the above. It is a side view which shows the roll supply means of the base material delivery apparatus same as the above. It is a schematic plan view which shows the roll stock means and roll supply means of a base material delivery apparatus same as the above. It is a figure which shows the suspended state of the inappropriate base-material roll to the roll support member same as the above. It is explanatory drawing for demonstrating the problem of the connection method of the conventional label formation base material.

Explanation of symbols

M1, M2 Label forming substrate (band film)
IG inner guide S sensor (reference position)
SL Substrate delivery line WL Standby line α Connection position β Cutting position W Width of label forming substrate Shortest distance from the SD sensor to the center line of the label forming substrate (substrate feeding line)

Claims (3)

Either of the pair of strip-like films extending in the opposite direction from each connection end set in a parallel state so that the connection ends correspond to each other with the position shifted in the width direction so as not to overlap in the width direction By translating one strip film to the other strip film side, the connection end of one strip film and the connection end of the other strip film are overlapped or butt-connected to each other. In the connecting method of the strip-shaped film
A reference position is set between the side end closer to the other strip film in one strip film to be translated and the center line of the other strip film,
When translating one strip film, the shortest distance SD from the reference position to the center line of the other strip film after the side end of the strip film closer to the other strip film reaches the reference position. A method for connecting strip-shaped films, wherein the strip-shaped film is moved by the sum of the half-width HW of the strip-shaped film. Either of the pair of strip-like films extending in the opposite direction from each connection end set in a parallel state so that the connection ends correspond to each other with the position shifted in the width direction so as not to overlap in the width direction By translating one strip film to the other strip film side, the connection end of one strip film and the connection end of the other strip film are overlapped or butt-connected to each other. In the connecting method of the strip-shaped film
A reference position is set between the side edge farther from the other band-shaped film in one band-shaped film to be translated and the end edge closer to one band-shaped film in the other band-shaped film,
When translating one strip film, the shortest distance SD from the reference position to the center line of the other strip film after the side edge of the strip film far from the other strip film has reached the reference position. A method for connecting strip films, wherein the strip films are moved by a difference from the half width HW of the strip films.   3. The method for connecting strip films according to claim 1, wherein when the strip film is translated, the full width FW of the strip film is measured, and the half width HW of the strip film is calculated from the measured value.

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