JP4704150B2 - Accumulator - Google Patents

Description

  The present invention relates to an upstream film delivery speed and a downstream film delivery speed, which are installed between an upstream apparatus that sends a belt-like film and a downstream apparatus that uses the belt-like film delivered from the upstream apparatus. The present invention relates to an accumulator that absorbs a difference in speed when a difference occurs between them.

  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. 7, 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 the plurality of movable rollers 52 that move up and down between the plurality of fixed rollers 51 are provided, and all the movable rollers 52 are supported by a common base member 53. 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. As a result, all the movable rollers 52 of the accumulator 50 are lifted simultaneously.

Japanese Patent Laid-Open No. 2004-10211

  By the way, in order to replenish the accumulator 50 with the belt-like film F when the feeding of the belt-like film F is resumed after the feeding of the belt-like film F is temporarily stopped due to the film roll replacement work in the upstream device. In addition, although the feeding speed of the belt-like film F of the upstream device is rapidly increased, in the accumulator device 50 as described above in which all the movable rollers 52 are supported by the common base member 53, the movable rollers Since the responsiveness of 52 is poor and the movable roller 52 that has moved up cannot be lowered immediately, there is a problem in that the belt-like film F is slack on the introduction side of the belt-like film F in the accumulator 50.

  In order to prevent the occurrence of such slack in the belt-like film F, the base member 53 on which the movable roller 52 is supported is used instead of the natural fall due to the weight of the base member 53 including the movable roller 52. However, if the base member 53 is forcibly pulled down in this manner, the band-like film in which no slack is generated on the side of the accumulator 50 where the band-like film F is led out is conversely considered. Excessive tension is applied to the film F, which causes a new problem that the band-shaped film F is kinked.

  Therefore, the object of the present invention is to sag the belt film without forcibly pulling down the movable roller when the film feeding speed on the upstream device side is suddenly increased to replenish the used belt film. An object of the present invention is to provide an accumulator device that is difficult to perform.

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 that are fixedly installed, and a plurality of movable rollers supported by a movable body that moves up and down, wherein one or more of the movable films on the introduction side of the belt-like film are provided. An introductory movable body arranged on the introductory side of the belt-like film so that the rollers are moved up and down independently of the other movable rollers as an introductory side movable roller or an introductory side movable roller group And the main movable body, the introduction-side movable roller or the introduction-side movable roller group is supported by the introduction-side movable body, and the other movable rollers are moved forward. The weight per one of the introduction side movable rollers in the introduction side movable part including the introduction side movable body supported by the main movable body is determined as the weight per one of the movable rollers in the main movable part including the main movable body. The present invention provides an accumulator characterized by being set smaller than the weight .
Further, the invention according to claim 2 is an accumulator device 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. A plurality of fixed rollers that are fixedly installed and a plurality of movable rollers supported by a movable body that moves up and down are provided, and one or a plurality of the movable rollers on the introduction side of the belt-like film are provided on the introduction side. Alternatively, as the introduction-side movable roller group, one or a plurality of the movable rollers on the strip-shaped film lead-out side are moved up and down independently of the other movable rollers as the lead-out side movable roller or the lead-out side movable roller group, respectively. In addition, the movable body includes an introduction-side movable body arranged on the introduction side of the belt-like film, and a lead-out side movable body arranged on the lead-out side of the belt-like film. And the main movable body arranged between the introduction-side movable body and the lead-out side movable body, and the introduction-side movable roller or the introduction-side movable roller group is used as the introduction-side movable body. The introduction-side movable roller in the introduction-side movable part including the introduction-side movable body that supports the roller or the derivation-side movable roller group on the derivation-side movable body and the other movable rollers on the main movable body. Per unit weight Wi, per unit weight Wm of the movable roller in the main movable part including the main movable body, per one of the outlet side movable roller in the outlet side movable part including the outlet side movable body The weight Wo is set such that Wi <Wo <Wm, so that an accumulator is provided.

As described above, in the accumulation device of the invention according to claim 1, one or more of the movable roller in the introduction side of the filmstrip, as introduced movable roller or introduced movable rollers against the other movable roller The weight of each of the introduction-side movable rollers in the introduction-side movable portion including the introduction-side movable body is smaller than the weight of each of the movable rollers in the main movable portion including the main movable body. since setting is made such that, when the delivery of the film strip by the upstream device is stopped, it is located in the inlet side of the filmstrip, because it is separated from the other movable roller, per one weight The movable part including the introduction side movable roller or the introduction side movable roller group that has a small height first rises, and then the feeding of the belt-like film by the upstream device is resumed. If the feeding speed of the belt-like film of the upstream device is rapidly increased in order to store the belt-like film in the belt device, the movable device including the introduction-side movable roller or the introduction-side movable roller group located on the belt-side film introduction side Since the portion starts to descend immediately, no slack occurs in the strip film on the introduction side of the strip film.

  Hereinafter, embodiments will be described with reference to the drawings. As shown in FIG. 1, the accumulator 1 is 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 being continuously connected. A long film-like label-forming substrate (hereinafter referred to as a belt-like film) F is fed out from a roll roll wound around a paper tube, and a film sending device 2 for feeding the belt-like film F and sending it out. It is installed between the labeling device 3 attached to the bottle B while forming a cylindrical label by sequentially cutting the belt-like film F sent from the device 2, and the film sending speed on the film sending device 2 side. And a difference between the film delivery speed on the labeling device 3 side, the speed difference is absorbed.

  As shown in FIGS. 2A and 2B, the accumulator 1 includes 19 fixed rollers 11 fixedly installed on the upper portion of the frame 10 and 18 movable members that move up and down between adjacent fixed rollers 11. The belt-like film F delivered from the film delivery device 2 is fed to the labeling device 3 side in a state of being alternately wound around the 19 fixed rollers 11 and the 18 movable rollers 12. It has come to be.

  The movable roller 12 is attached to a movable plate 13 supported by a plurality of slide poles 15a and 15b fixedly installed on the frame 10 so as to be movable up and down. The movable plate 13 is moved up and down by a lifting mechanism 17. It has become.

  The movable plate 13 is a main movable member that supports the two movable rollers 12 on the introduction side of the belt-like film F as an introduction-side movable roller group and the other 16 movable rollers 12. It is divided into the plate 13b, and the introduction side movable plate 13a and the main movable plate 13b can be moved up and down independently. The introduction-side movable plate 13a is supported by the two slide poles 15a and 15a, and the main movable plate 13b is supported by the two slide poles 15b and 15b. The raising operation is restricted by the stopper 16 provided at the upper part.

  Further, the weight per movable roller 12 in the introduction side movable part including the introduction side movable plate 13a and the two movable rollers 12 (the total weight of the introduction side movable part is divided by the number (2) of the movable rollers 12). Weight) is the weight per movable roller 12 in the main movable portion including the main movable plate 13b and the 16 movable rollers 12 (the weight obtained by dividing the total weight of the main movable portion by the number of movable rollers 12 (16)). ) Is set to be smaller.

  The introduction-side movable plate 13a and the main movable plate 13b can be connected to each other via the connecting member 14, and can be moved up and down integrally by connecting the both. It is.

  The elevating mechanism 17 includes a driving pulley 18 and a driven pulley 19 installed on the lower and upper parts of the frame 10, and an endless belt that is stretched over the driving pulley 18 and the driven pulley 19 and to which the main movable plate 13b is connected. 20 and a drive motor 21 for rotating the drive pulley 18. When the drive motor 21 is rotated forward, the main movable plate 13 b is raised, and when the drive motor 21 is rotated reversely, the main movable plate 13 b is lowered. It is supposed to be.

  Therefore, when setting the belt-like film F in the accumulator 1, first, the introduction side movable plate 13a and the main movable plate 13b are connected to each other via the connecting member 14, and the stopper 16 is retracted. By rotating the drive motor 21 forward, the 18 movable rollers 12 are raised above the 19 fixed rollers 11, and the belt-like film F is interposed between the 18 movable rollers 12 and the 19 fixed rollers 11. When the eighteen movable rollers 12 are lowered to the lowest position by rotating the drive motor 21 in reverse, the belt-like film F fed from the film feeding device 2 is moved to the nineteen fixed rollers 11 and Since it is in a state of being alternately wound around the 18 movable rollers 12, at that time, the introduction side movable plate 13a and the main movable plate 13b When returning the stopper 16 to its original state while releasing the binding, the initial setting of the accumulator device 1 is completed.

  Further, in this accumulator 1, as shown in FIGS. 2A and 2B, a cylindrical cam 22 having a helical cam groove on the outer peripheral surface is supported on the lower portion of the frame 10 so as to be rotatable at a fixed position. In addition, a pin 23 that fits into a cam groove of the cylindrical cam 22 is attached to the introduction side movable plate 13a to which the two movable rollers 12 are attached, and the introduction is supported by the introduction side movable plate 13a. When the pin 23 moves up and down as the side movable roller group moves up and down, the cylindrical cam 22 rotates accordingly. Therefore, during the steady operation in which both the film delivery device 2 and the labeling device 3 are operated, the cylinder is rotated. By detecting the rotation angle of the cam 22 with the potentiometer 24, the height position of the introduction-side movable roller group is detected while detecting the height position of the introduction-side movable roller group. , By varying the delivery rate of the filmstrip F by the film delivery device 2, the strip film F is adapted to be sent to the labeling apparatus 3 as a transmission rate that the labeling device 3 side is requesting.

  In addition, when the strip film F is temporarily stopped during the operation of the labeling device 3 such as when the strip film F is connected, the strip film F stored in the accumulator 1 is temporarily stopped. Is pulled out to the labeling device 3 side, and the movable roller 12 of the accumulator device 1 gradually rises. On the contrary, when the operation of the labeling device 3 is stopped during the feeding of the belt-like film F by the film sending device 2, the introduction-side movable roller group descends to the lowest position. The feeding of the belt-like film F by 2 is stopped.

  Hereinafter, the operation of the accumulator 1 will be described with reference to FIGS. 3 and 4. First, when both the film delivery device 2 and the labeling device 3 are operating in a steady state, as shown in FIG. 3A, the main movable plate 13b supporting a large number of movable rollers 12 is at the lowest position. The introduction side movable plate 13a supporting the introduction side movable roller group composed of the two movable rollers 12 is lowered to the vicinity of the lowest position, and is attached to the introduction side movable plate 13a. The pin 23 is fitted in the cam groove of the cylindrical cam 22. Therefore, in this state, a sufficient band-shaped film F is stored in the accumulator 1, and as described above, the height of the introduction-side movable roller group is detected while detecting the height position of the introduction-side movable roller group. Accordingly, the belt-like film F is sent to the labeling device 3 side at the sending speed requested by the labeling device 3 side by changing the sending speed of the belt-like film F by the film sending device 2.

  In this state, when the feeding of the belt-like film F is temporarily stopped in order to change the original roll in the film delivery device 2, the movable roller 12 rises to raise the belt-like shape stored in the accumulator device 1. The film F begins to be sent out to the labeling device 3 side. At this time, as shown in FIG. 5B, the introduction side movable plate 13a portion having a small weight per movable roller 12 first rises. When the raising operation is restricted by the stopper 16, the main movable plate 13b portion having a large weight per movable roller 12 is then raised as shown in FIG.

  After that, the exchange of the original fabric roll is completed, and when the film feeding device 2 starts to feed the belt-like film F at a high speed in order to store the belt-like film F in the accumulator 1, the number of the movable rollers 12 is small and the responsiveness The excellent introduction side movable plate 13a portion first descends, and when the pin 23 attached to the introduction side movable plate 13a fits into the cam groove of the cylindrical cam 22, as shown in FIG. Since the delivery speed of the belt-like film F by the film delivery device 2 decreases, the introduction-side movable plate 13a portion having a small weight per movable roller 12 starts to rise as shown in FIG. 4 (e). At the same time, the main movable plate 13b portion having a large weight per movable roller 12 starts to descend. Here, when the introduction side movable plate 13a part rises, when the pin 23 is removed from the cam groove of the cylindrical cam 22, the film delivery device 2 starts feeding the belt-like film F again at a high speed. Since the introduction side movable plate 13a part is lowered to some extent, the main movable plate 13b part having a large weight per movable roller 12 is lowered.

  And as shown in the figure (f), after the main movable plate 13b part falls to the lowest position, as shown in the figure (g), the introduction side movable plate 13a falls to near the lowest position, When a sufficient band-like film F is stored in the accumulator device 1, the film delivery device 2 shifts to a steady operation.

  As described above, in the accumulator 1, the introduction-side movable plate 13a portion that supports the two movable rollers 12 on the introduction side of the belt-like film F as the introduction-side movable roller group, and the other 16 movable rollers The main movable plate 13b portion that supports 12 is moved up and down independently, and the weight of each movable roller 12 in the introduction side movable plate 13a portion is equal to one per movable roller 12 in the main movable plate 13b portion. Therefore, when the feeding of the belt-like film F by the film feeding device 2 is stopped, the portion of the introduction-side movable plate 13a having a small weight per movable roller 12 rises first. Thereafter, the feeding of the belt-like film F by the film feeding device 2 is resumed, and the belt-like film is transferred to the accumulator device 1 When the feeding speed of the belt-like film F by the film feeding device 2 is rapidly increased, the belt-like film F is located on the introduction side, and the number of the movable rollers 12 is small and the response is excellent. Since the introduction side movable plate 13a portion starts to descend immediately, the belt-like film F is not slackened on the introduction side of the belt-like film F.

  In the above-described embodiment, the weight per movable roller 12 in the introduction-side movable plate 13a portion is set to be smaller than the weight per movable roller 12 in the main movable plate 13b portion. However, the weight relationship between the two is not particularly limited.

  Further, in order to improve the responsiveness of the introduction side movable plate 13a, the number of the movable rollers 12 attached to the introduction side movable plate 13a is reduced, the diameter of the movable roller 12 is increased, or one of the movable rollers 12 is provided. It is conceivable to increase the weight per hit.

  Further, in the above-described embodiment, the introduction movable plate 13 a portion that supports the two movable rollers 12 on the introduction side of the belt-like film F as the introduction movable roller group and the main movable member that supports the other movable rollers 12. The plate 13b portion is moved up and down independently, and the weight per movable roller 12 in the introduction side movable plate 13a portion is made smaller than the weight per movable roller 12 in the main movable plate 13b portion. However, the present invention is not limited to this. For example, as shown in FIG. 5A, the movable plate 13 is connected to the introduction side movable plate 13a, the main movable plate 13b, and the strip film F lead-out side. The movable movable plate 13c that supports the two movable rollers 12 as a group of movable movable rollers is moved up and down independently. And a weight Wi per movable roller 12 in the introduction side movable plate 13a portion, a weight Wm per movable roller 12 in the main movable plate 13b portion, and one of the movable rollers 12 in the lead side movable plate 13c portion. It is also possible to set so that Wi <Wo <Wm when the weight per unit is Wo.

  Hereinafter, the operation of the accumulator will be described with reference to FIGS. First, when both the film delivery device 2 and the labeling device 3 are operating in a steady state, as shown in FIG. 5A, a main movable plate 13b supporting a large number of movable rollers 12 and two pieces of movable plates 12 are supported. The lead-out side movable plate 13c composed of the movable rollers 12 is lowered to the lowest position, and the introduction-side movable plate 13a supporting the introduction-side movable roller group composed of the two movable rollers 12 is near the bottom position. The pin 23 is lowered, and the pin 23 attached to the introduction-side movable plate 13 a is fitted in the cam groove of the cylindrical cam 22. Therefore, in this state, a sufficient band-shaped film F is stored in the accumulator 1, and as described above, the height of the introduction-side movable roller group is detected while detecting the height position of the introduction-side movable roller group. Accordingly, the belt-like film F is sent to the labeling device 3 side at the sending speed requested by the labeling device 3 side by changing the sending speed of the belt-like film F by the film sending device 2.

  In this state, when the feeding of the belt-like film F is temporarily stopped in order to change the original roll in the film delivery device 2, the movable roller 12 rises to raise the belt-like shape stored in the accumulator device 1. The film F starts to be fed to the labeling device 3 side. At this time, as shown in FIG. 5B, the portion of the lead-out side movable plate 13c where the rotational speed of the movable roller 12 is highest rises first, and the stopper 16c. Then, as shown in FIG. 3C, the portion of the introduction-side movable plate 13a having the smallest weight per movable roller 12 is raised. When the upward movement of the introduction side movable plate 13a is restricted by the stopper 16a, the main movable plate 13b having the largest weight per movable roller 12 is lifted as shown in FIG. Will do.

  After that, the exchange of the raw roll is completed, and when the film delivery device 2 starts to send the belt-like film F at a high speed in order to store the belt-like film F in the accumulator, it is located on the introduction side of the belt-like film F, Moreover, the introduction side movable plate 13a portion having a small number of the movable rollers 12 and excellent in responsiveness first descends and is attached to the introduction side movable plate 13a as shown in FIG. 6 (e). When the pin 23 is fitted into the cam groove of the cylindrical cam 22, the feeding speed of the belt-like film F by the film feeding device 2 is reduced, so that the weight per movable roller 12 is as shown in FIG. The small introduction side movable plate 13a portion starts to rise in reverse, and the main movable plate 13b portion and the movable roller 12 having the largest weight per movable roller 12 are provided. Weight next largest discharge side movable plate 13c portion or starts to drop. Here, when the introduction side movable plate 13a part rises, when the pin 23 is removed from the cam groove of the cylindrical cam 22, the film delivery device 2 starts feeding the belt-like film F again at a high speed. Since the introduction-side movable plate 13a part is lowered to some extent, the main movable plate 13b part and the lead-out side movable plate 13c part having a large weight per movable roller 12 are lowered.

  Then, after the main movable plate 13b portion and the lead-out side movable plate 13c portion are lowered to the lowest position as shown in FIG. 5G, the introduction side movable plate 13a is moved to the lowest position as shown in FIG. When the film is lowered to the vicinity of the lower position and a sufficient band-shaped film F is stored in the accumulator device 1, the film delivery device 2 shifts to a steady operation.

  In this accumulator, the weight Wi per movable roller 12 in the introduction-side movable plate 13a portion, the weight Wm per movable roller 12 in the main movable plate 13b portion, the movable roller 12 in the lead-out movable plate 13c portion. Is set so that Wi <Wo <Wm, but the weight relationship of Wi, Wo, and Wm is not particularly limited.

  In the embodiment described above, the two movable rollers 12 are attached to the introduction-side movable plate 13a. However, the number of movable rollers 12 attached to the introduction-side movable plate 13a may be one or three or more. In order to store the belt-like film F in the accumulator, the film feeding speed when the film delivery device 2 starts to feed the belt-like film F may be set as appropriate.

  In each of the above-described embodiments, the movable roller 12 is moved up and down below the fixed roller 11. However, the present invention is not limited to this, and conversely, the movable roller is above the fixed roller 11. The present invention can also be applied to an accumulator that moves up and down. However, in that case, it is necessary to always urge the movable plate supporting the movable roller upward by a driving force of a motor, an air cylinder or the like.

  Moreover, in embodiment mentioned above, a cylindrical label is cut | disconnected in order from the film delivery apparatus 2 which draws | feeds out and sends out the strip | belt-shaped film F from an original fabric roll, and the strip | belt-shaped film F sent out from this film delivery apparatus 2. While the accumulator 1 installed between the labeling device 3 attached to the bottle B while being formed has been described, the present invention is not limited to this, and the present invention includes an upstream device for sending a strip-shaped film, The present invention can be applied to various accumulators installed between a downstream apparatus using a strip film sent from an upstream apparatus.

It is a schematic block diagram which shows the label mounting system in which one Embodiment of the accumulator apparatus concerning this invention was installed. (A) is a front view which shows the accumulator same as the above, (b) is sectional drawing along the XX line of (a). (A)-(d) is operation | movement explanatory drawing of an accumulator apparatus same as the above. (E)-(g) is operation | movement explanatory drawing of an accumulator apparatus same as the above. (A)-(d) is operation | movement explanatory drawing of the accumulator which is other embodiment. (E)-(h) is operation | movement explanatory drawing of an accumulator apparatus same as the above. It is a front view which shows the conventional accumulator.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Accumulation apparatus 2 Film delivery apparatus 3 Labeling apparatus 10 Frame 11 Fixed roller 12 Movable roller 13 Movable plate 13a Introduction side movable plate 13b Main movable plate 13c Outlet side movable plate 14 Connecting member 15a, 15b Slide pole 16, 16a, 16c Stopper 17 Elevating mechanism 18 Drive pulley 19 Driven pulley 20 Belt 21 Drive motor 22 Cylindrical cam 23 Pin 24 Potentiometer B Bottle 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;
It is provided with a plurality of fixed rollers fixedly installed and a plurality of movable rollers supported by a movable body that moves up and down, on which belt-shaped films are alternately wound.
The movable body is shaped like a belt so that one or a plurality of the movable rollers on the introduction side of the belt-like film can be moved up and down independently of the other movable rollers as an introduction-side movable roller or an introduction-side movable roller group. Divided into an inlet movable body and a main movable body arranged on the film inlet side,
The introduction-side movable roller or the introduction-side movable roller group is supported by the introduction-side movable body, and the other movable rollers are supported by the main movable body,
The weight per one introduction side movable roller in the introduction side movable part including the introduction side movable body is set smaller than the weight per one movable roller in the main movable part including the main movable body. An accumulator characterized by. 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;
It is provided with a plurality of fixed rollers fixedly installed and a plurality of movable rollers supported by a movable body that moves up and down, on which belt-shaped films are alternately wound.
One or a plurality of the movable rollers on the introduction side of the belt-like film is used as an introduction-side movable roller or a group of introduction-side movable rollers, and one or a plurality of the movable rollers on the lead-out side of the belt-like film is used as a delivery-side movable roller or a delivery-side movable roller group As described above, the movable body is arranged on the introduction side of the belt-like film, and the lead-out side arranged on the lead-out side of the belt-like film so as to be lifted and lowered independently with respect to the other movable rollers. Dividing into a movable body and a main movable body arranged between the introduction-side movable body and the derivation-side movable body,
The introduction-side movable roller or the introduction-side movable roller group is the introduction-side movable body, the derivation-side movable roller or the derivation-side movable roller group is the derivation-side movable body, and the other movable rollers are the main movable. Support each body,
Weight Wim per one introduction side movable roller in the introduction side movable part including the introduction side movable body, Weight Wm per one movable roller in the main movable part including the main movable body, Derivation side movable An accumulator characterized in that a weight Wo per one of the lead-out movable rollers in the lead-out movable part including the body is set to satisfy Wi <Wo <Wm.

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