JP4828357B2 - Accumulator - Google Patents

Description

  The present invention relates to an accumulator that is installed between an upstream device that sends a belt-like film and a downstream device that uses the belt-like film sent from the upstream device.

  For example, a long strip-shaped label forming substrate folded into a sheet with a cylindrical label formed of a synthetic resin film such as a shrink label or a stretch label attached to a bottle or the like continuously connected. A base material feeding device that feeds out and feeds a label forming base material from a base material roll wound around a paper tube, and a cylindrical shape by sequentially cutting the label forming base material sent from the base material feeding device. In general, an accumulator is installed between the labeling device to be mounted on a bottle or the like while forming the label, and the label forming base material is fed in accordance with the replacement work of the base material roll in the base material feeding device. Even if it is temporarily stopped, it is stored in the accumulator so that it is not necessary to stop the operation of the labeling device until the delivery of the label forming substrate is resumed. Label formation base material there are adapted to be sent to the labeling device.

  In such an accumulator, as shown in FIG. 8, a belt-like film F such as a label forming substrate fed from a film roll such as a substrate roll set in an upstream device such as a substrate feeding device is stretched. The plurality of fixed rollers 51 and a plurality of movable rollers 52 that move up and down between the plurality of fixed rollers 51 are provided, and the plurality of movable rollers 52 are supported by a common base member 53 that can be moved up and down.

  Therefore, when the feeding operation of the belt-like film F by the upstream device is temporarily stopped during the operation of the downstream device such as the labeling device, the belt-like film F stored in the accumulator device 50 is on the downstream device side. Accordingly, the movable roller 52 rises together with the base member 53, and when the feeding of the belt-like film F is resumed, in order to replenish the belt-like film F to the accumulator 50, the upstream side Since the feeding speed of the belt-like film F of the side device is rapidly increased, the movable roller 52 is lowered together with the base member 53 accordingly.

Japanese Patent Laid-Open No. 2004-10211

  Incidentally, as described above, in the accumulator 50 of the type in which the belt-like film F is passed over the fixed roller 51 and the movable roller 52, the belt-like film F in contact with the fixed roller 51 and the movable roller 52 is fixed to the fixed roller 51 and the movable roller 52. Static electricity is likely to be generated when leaving, and the static electricity is accumulated in the belt-like film F while passing through the accumulator 50. Accordingly, the belt-like film F is sent while meandering, There is a problem that the belt-like film F is detached from the fixed roller 51 or the movable roller 52, or the belt-like film F is folded.

  Further, when static electricity is accumulated in the belt-like film F, adjacent belt-like films are adsorbed between the fixed roller 51 and the movable roller 52, and accordingly, the feeding resistance of the belt-like film F increases. There is also a problem that the belt-like film F cannot be sent out smoothly.

  In particular, if the number of the fixed rollers 51 and the movable rollers 52 is increased in order to increase the amount of accumulation, the amount of static electricity accumulated in the belt-like film F also increases.

  Accordingly, an object of the present invention is to provide an accumulator capable of removing static electricity accumulated in a belt-like film.

To solve the above problems, the invention according to claim 1, an upstream device that sent the filmstrip, installed between the downstream device using the filmstrip sent from the upstream device Accumulation An apparatus comprising a plurality of fixed rollers fixedly installed on which belt-shaped films are alternately wound and a plurality of movable rollers moving up and down on the lower side or the upper side of the fixed rollers . It is configured to be retractable at the upper side or the lower side of the fixed roller at the time of initial setting, so that the movable roller is within the ascending / descending range of the movable roller between the adjacent movable rollers so as not to overlap the movable roller in a plane. An accumulator is provided in which a grounded bar-like conductive member is fixedly installed at a height position.

In order to solve the above problems, the invention according to claim 2 is the accumulation device of the invention according to claim 1, in plan view, of the movable roller in the outer least one side edge of the film web A grounded conductive member extending from the introduction side of the belt-like film toward the delivery side is installed in the vicinity of the end portion and at a height position within the movable range of the movable roller . .

  As described above, in the accumulator according to the first aspect of the present invention, since the grounded conductive member is installed at the height position within the movable roller ascending / descending range between the adjacent movable rollers, When the belt-like film in which static electricity has accumulated passes through the vicinity of the conductive member, the charged belt-like film discharges and the static electricity moves to the conductive member, and the ground Since it flows, static electricity is removed from the strip film, and the strip film does not meander in the accumulator, and adjacent strip films do not stick to each other between the fixed roller and the movable roller. Therefore, like a conventional accumulator in which static electricity is accumulated in the belt-like film while passing, the belt-like film may meander and come off from the fixed roller or the movable roller, or the belt-like film may be folded. The belt-like film can be smoothly delivered.

In particular, in this A Kyumu apparatus, the movable roller, when the initial set of the filmstrip, which is configured to be retracted upward or downward side of the fixing roller, if the initial set filmstrip, below the fixed roller In the type of accumulator in which the movable roller moves up and down on the side, in the type of accumulator in which the movable roller moves up and down on the upper side of the fixed roller while the movable roller is retracted above the fixed roller, the movable roller is attached to the fixed roller. In general, the belt-like film is passed between the fixed roller and the movable roller by lowering or raising the movable roller after passing the belt-like film between the movable roller and the fixed roller in the state of being retracted downward. because it is, if the fixed installation rod-like conductive member in the height position within the lifting range of the movable roller, the conductive member is in the initial set There is likely to be harmful, in the accumulation apparatus, a rod-shaped conductive member is fixedly installed at a height position within the lifting range of the movable roller, so as not to overlap with the movable roller in plan view, adjacent movable Since the conductive member is disposed between the rollers, the conductive member does not become an obstacle to the initial setting, and the initial setting operation can be easily performed as in the conventional accumulator.

Further, in accumulation device of the invention according to claim 2, in plan view, a vicinity of the end portion of the movable roller outside the at least one side edge of the filmstrip, the height position of the lifting range of the movable roller In addition, since a grounded conductive member extending from the introduction side of the belt-like film toward the delivery side is installed, the belt-like film always passes in the vicinity of the conductive member, and the belt-like film in which static electricity has accumulated is formed. When passing through the vicinity of the conductive member, the charged belt-like film causes a discharge, and static electricity moves to the conductive member and flows to the ground, so that the static electricity is removed from the belt-like film and the belt-like film is formed in the accumulator. serpentine or in between the fixed roller and the movable roller, without filmstrip adjacent to or adsorbed to each other, to facilitate delivery of the strip-like film It is possible.

  In particular, in this accumulator, since the conductive member is disposed outside the movable roller, the belt-like film being fed does not come into contact with the conductive member, and the belt-like film can be fed smoothly and reliably. it can.

  Hereinafter, embodiments will be described with reference to the drawings. The accumulator device 1 shown in FIGS. 1 and 2 is folded into a sheet in a state in which cylindrical labels formed of a synthetic resin film such as a shrink label or a stretch label attached to a bottle are continuously connected. From a raw film roll in which a long belt-shaped label-forming substrate (hereinafter referred to as a belt-shaped film) F is wound around a paper tube in a roll shape, a film feeding device that feeds and feeds the belt-shaped film F; It is installed between the labeling device to be attached to the bottle while forming the cylindrical label by sequentially cutting the fed strip film F, and the film sending speed on the film sending device side and the film on the labeling device side When a difference occurs between the delivery speed and the delivery speed, the speed difference is absorbed.

  As shown in FIGS. 1 and 2, the accumulator 1 includes 19 fixed rollers 11 fixedly installed on the upper part of the frame 10 and 18 movable rollers 12 that move up and down between adjacent fixed rollers 11. The belt-like film F delivered from the film delivery device is fed to the labeling device side while being alternately wound around the 19 fixed rollers 11 and the 18 movable rollers 12. Yes.

  The movable roller 12 is attached to a movable plate 13 supported by a slide pole (not shown) fixed to the frame 10 so as to be movable up and down, and the movable plate 13 is moved up and down by a lifting mechanism 14. Can be done. Further, a stopper (not shown) is provided on the upper portion of the frame 10, and the upward movement of the movable plate 13 can be restricted as necessary by this stopper. Although not shown in FIG. 1, on the front side of the frame 10, as shown in FIG. 2, a double door type door 19 is installed in two upper and lower stages, and by opening the door 19, The inside can be inspected.

  The elevating mechanism 14 includes a driving pulley 15 and a driven pulley 16 installed at the lower and upper portions of the frame 10, and an endless belt 17 that is stretched over the driving pulley 15 and the driven pulley 16 and to which the movable plate 13 is connected. And a drive motor 18 that rotates the drive pulley 15. When the drive motor 18 is rotated forward, the movable plate 13 is raised, and when the drive motor 18 is rotated reversely, the movable plate 13 is lowered. It has become.

  Further, as shown in FIGS. 1 to 3, the accumulator 1 is provided with a static electricity removing unit 20, and when the strip film F is separated from the fixed roller 11 and the movable roller 12 by the static electricity removing unit 20. And static electricity accumulated in the belt-like film F is removed.

  As shown in FIGS. 1 to 3, the static eliminator unit 20 has a predetermined height position (stopper) within the ascending / descending range of the movable roller 12 outside the open end of the movable roller 12 not supported by the movable plate 13. And an intermediate position between the lowermost position of the movable roller 12 and a metal support plate 21 having good conductivity and electrically fixed to the support plate 21. 19 cylindrical bars 22 having good conductivity, and the support plate 21 is grounded via a ground wire 23.

  As shown in FIG. 3, the 19 bars 22 are arranged between the adjacent movable rollers 12 so as not to overlap the movable rollers 12, and each bar 22 is arranged as shown in FIG. In addition, a cylindrical core rod 22a having a diameter of 8 mm formed of copper and a covering material 22b formed of a fabric having a thickness of 0.5 mm knitted with carbon fiber covering the outer peripheral surface of the core rod 22a. It is configured.

  As described above, in the accumulator 1, the grounded bar 22 is installed at a height position within the ascending / descending range of the movable roller 12 between the adjacent movable rollers 12. When the belt-like film F in which static electricity has accumulated passes through the vicinity of the bar 22, the charged belt-like film F discharges and the static electricity moves to the bar 22 and passes through the support plate 21. Since it flows to the ground, static electricity is removed from the belt-like film F, and the belt-like film F meanders in the accumulator 1 or between the fixed roller 11 and the movable roller 12, adjacent belt-like films F are mutually connected. It will not be adsorbed on. Therefore, unlike the conventional accumulator device, the belt-like film F meanders and does not come off from the fixed roller 11 or the movable roller 12 and the belt-like film F is not folded, so that the belt-like film F is smooth. Can be sent out.

  Here, Table 1 shows the measurement results of the amount of static electricity accumulated in the belt-like film F for both the case where the static electricity removal unit 20 is installed and the case where it is not installed. As shown in Table 1, when the static elimination unit 20 described above is installed, the amount of static electricity accumulated in the belt-like film F is extremely small as compared with the case where it is not installed, and a sufficient static elimination effect is exhibited. I understand. In addition, as a measuring device for the amount of static electricity, a digital electrostatic potential measuring device (KSD-0103) manufactured by Kasuga Electric Co., Ltd. was used.

  Further, in the accumulator 1, when initial setting is performed, as shown in FIG. 5A, the stopper is retracted and the drive motor 18 is rotated forward, whereby the 18 movable rollers 12 are fixed to 19 pieces. After being raised above the roller 11 and passing the belt-like film F between the 18 movable rollers 12 and the 19 fixed rollers 11, the drive motor 18 is rotated in the reverse direction to thereby rotate the 18 movable rollers 12. Is lowered to the lowest position, the belt-like film F sent from the film sending device is alternately wound around the 19 fixed rollers 11 and the 18 movable rollers 12, but as described above, Since the bar 22 of the static electricity removing unit 20 is disposed between the adjacent movable rollers 12 so as not to overlap the movable roller 12 in a plan view, When the movable roller 12 is raised above the fixed roller 11 in order to perform the initial setting of the cum device 1, the bar 22 does not become an obstacle to the initial setting as in the conventional accumulator. Work can be done.

  Further, since the static electricity removing unit 20 mounted on the accumulator 1 is simply provided with a grounded conductive member such as a bar 22 in the vicinity of the transport path of the belt-like film F, static electricity using air ions is used. Compared with the case where an expensive corona discharge type static eliminator or light irradiation type static eliminator is installed, the installation space is small, the entire accumulator device 1 can be downsized, and no power source is required. An equivalent charge eliminating effect can be realized at low cost.

  In the above-described embodiment, 19 bars 22 are installed so as to correspond to all the fixed rollers 11, but the present invention is not limited to this. May be set as appropriate.

  Moreover, in embodiment mentioned above, the bar 22 formed by coat | covering the outer peripheral surface of the cylindrical core bar 22a formed with copper with the coating | covering material 22b which consists of a fabric knitted with carbon fiber is used as an electroconductive member. However, the present invention is not limited to this, and a bar formed only of a rod-shaped member made of a metal having good conductivity such as copper or aluminum may be used.

  Further, in the above-described embodiment, the bar 22 that is a conductive member is disposed between the adjacent movable rollers 12, but the present invention is not limited to this. For example, FIGS. As shown in FIG. 4B, there is an electrical conductivity formed by copper or the like extending in the width direction over the entire width of the door 19 on the inner surface side of the door 19 so as to be arranged in the vicinity of the end of the movable roller 12 in a plan view. A plurality of favorable metal bars 22 </ b> A may be attached, and these metal bars 22 </ b> A may be grounded via the ground wire 23.

  In this case, the belt-like film F necessarily passes in the vicinity of the metal bar 22A, and when the belt-like film F in which static electricity has accumulated passes through the vicinity of the metal bar 22A, the charged belt-like film F causes a discharge to cause static electricity. Since it moves to the metal bar 22A and flows to the ground, static electricity is removed from the belt-like film F, and the belt-like film F meanders in the accumulator, or between the fixed roller 11 and the movable roller 12, the adjacent belt-like shape. The films F are not adsorbed to each other, and the belt-like film F can be smoothly fed out in the same manner as the accumulator 1 described above.

  In particular, in this accumulator, since the metal bar 22A, which is a conductive member, is disposed outside the movable roller 12, the belt-like film F being fed does not come into contact with the metal bar 22A, and the belt-like film F is removed. It can be delivered smoothly and reliably.

  Further, the grounded conductive member attached to the door 19 is not limited to the metal bar 22A described above, and a metal plate having a predetermined height can also be used.

  Further, the conductive member made of the metal bar 22A, the metal plate, or the like does not necessarily need to be installed on the door 19 side, and can be installed on the opposite side of the door 19; It can also be installed on both sides. When the conductive member is installed on the opposite side of the door 19, the vicinity of the outer side of the movable plate 13 supporting the movable roller 12 so that the conductive member is arranged in the vicinity of the end of the movable roller 12 in a plane. Will be installed in.

  In addition, as shown in FIGS. 7A and 7B, when the door 19 itself is disposed in the vicinity of the end of the movable roller 12, the door 19 itself is formed of a metal plate having good conductivity. If the door 19 itself is grounded via the ground wire 23, it is not necessary to separately install a conductive member for removing static electricity, and the installation space for the conductive member can be reduced. .

  Further, when the cover is fixedly installed instead of the door and the cover is disposed near the end of the movable roller 12, the cover itself is formed of a metal plate having good conductivity. If the cover itself is grounded, the same effect can be obtained.

It is a front view which shows one Embodiment of the accumulator apparatus concerning this invention. It is sectional drawing along the XX line of FIG. It is a partial enlarged plan view which shows the static electricity removal unit provided in the accumulator same as the above. It is sectional drawing which shows the bar | burr which comprises the static electricity removal unit same as the above. (A), (b) is explanatory drawing which shows the method of setting a strip | belt-shaped film to the accumulator apparatus same as the above. (A) is a front view which shows the accumulator which is other embodiment, (b) is sectional drawing along XX of (a). (A) is a front view which shows the accumulator which is other embodiment, (b) is sectional drawing along XX of (a). It is a front view which shows the conventional accumulator.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Accumulator 10 Frame 11 Fixed roller 12 Movable roller 13 Movable plate 14 Lifting mechanism 15 Drive pulley 16 Driven pulley 17 Belt 18 Drive motor 19 Door 20 Static electricity removal unit 21 Support plate 22 Bar (conductive member)
22a Core rod 22b Coating material 22A Metal bar (conductive member)
23 Ground wire F Strip film

Claims (2)

An accumulator installed between an upstream device for sending a belt-like film and a downstream device using a belt-like film sent from the upstream device;
A plurality of fixed rollers fixedly installed, and a plurality of movable rollers moving up and down on the lower side or the upper side of the fixed rollers, on which belt-shaped films are alternately wound,
The movable roller is configured to be retractable on the upper side or the lower side of the fixed roller at the initial setting of the belt-shaped film,
A grounded rod-like conductive member is fixedly installed at a height position within the movable roller ascending / descending range between the adjacent movable rollers so as not to overlap the movable roller in a plan view. An accumulator device. The flat surface, the a end portion of the movable roller in the outer least one side edge of the filmstrip, the height position of the lifting range of the movable roller, sender from the introduction side of the film web The accumulator according to claim 1, further comprising a grounded conductive member extending toward .

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