JP2008132395A - Device for applying paste to web - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device for applying paste capable of accurately and uniformly applying paste to a desired application region of a web. <P>SOLUTION: The device for applying paste comprises a paste roller 42 applying paste to a paper web PW forming tip paper of a filter cigarette and taking out the paste from a paste pod 40, a transfer roller 50 coming into rolling contact with the paste roller 42 and having, on its outer circumferential surface, a groove pattern GP for receiving the paste from the paste roller 42, and a pressing roller 66 for pressing the paper web PW against the transfer roller 50. The outer circumferential surface of the pressing roller 66 is constructed from an elastic outer layer 106 which, by its elastic deformation, transfers the paste in the groove pattern GP to the paper web PW, with part of which entering into the groove pattern GP of the transfer roller 50 together with the paper web PW. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a glue applying device for applying glue according to a predetermined pattern to a web, particularly a paper web for forming chip paper for a filter cigarette.

  This type of glue applicator includes a glue pod and three rotatable rollers, that is, a glue roller partially immersed in the glue pod, a transfer roller in contact with the glue roller, and a transfer roller. A pressure roller for sandwiching the paper web, the glue in the glue pod is transferred to the paper web through the glue and the transfer roller, and when the paper web passes between the transfer roller and the pressure roller, Glue is applied (see FIG. 1 of Patent Document 1 and FIG. 2 of Patent Document 2).

  More specifically, the glue application device of Patent Document 1 has a groove, that is, a groove pattern, on the outer peripheral surface of the glue roller, and this groove pattern is formed according to a predetermined glue application area on the paper web. In this case, the transfer roller can receive the glue from the groove pattern of the glue roller on the outer peripheral surface thereof and then transfer it to the paper web, thereby forming a glue application area corresponding to the groove pattern on the paper web. .

On the other hand, the coating apparatus of Patent Document 2 has a flat area formed on the outer peripheral surface of the transfer roller in accordance with the paste application area, that is, a flat pattern. By receiving the glue and transferring the received glue to the paper web, it is possible to form a glue application area corresponding to the flat pattern on the paper web.
When obtaining chip paper for a filter cigarette from a paper web, the paste application area is formed avoiding the ventilation area of the paper web and the cutting area at the center.
Special Table 2001-511422 U.S. Pat.No. 4,252,527

  In the case of the glue application device of Patent Document 1, the glue transfer from the glue roller to the transfer roller is realized by separating the glue in the groove pattern into the transfer roller side and the glue roller side. The transferred glue becomes a spotted pattern. For this reason, even if glue is transferred from the transfer roller to the paper web, the patch pattern is maintained. As a result, the glue cannot be uniformly applied to the paper web, and application spots are generated.

When chip paper is formed from a paper web, the application spots of glue on the paper web decrease the adhesive strength of the chip paper and become a major factor in causing defective molding of filter cigarettes.
Further, in the case of the glue application device of Patent Document 1, pressing by the pressing roller may cause the glue to be eaten out from the glue application area to be formed on the paper web, and the glue that has been fed out may not be in the above-described ventilation area or cutting area. It will also be applied as desired.

  On the other hand, in the case of the glue application device of Patent Document 2, since glue moves from the glue roller onto the flat pattern of the transfer roller, it is inevitable that a spot pattern appears on the glue on the flat pattern. However, in the case of Patent Document 2, since the outer peripheral surface of the pressing roller has an uneven shape, when the paste is transferred from the transfer roller to the paper web, the patch pattern of the paste is eliminated to some extent. It is not possible to reliably form an adhesive application area where the adhesive is uniformly applied to the paper web.

Further, since the flat pattern is formed from an open recess on the outer peripheral surface of the transfer roller, in this case as well, it is impossible to avoid paste from the paste application area.
The present invention has been made on the basis of the above-mentioned circumstances, and the object of the present invention is to uniformly apply glue within the paste application area to be formed on the web, and to feed out the paste from the paste application area. It is an object of the present invention to provide a web glue applicator which can be reliably prevented.

  In order to achieve the above object, a web glue applicator of the present invention causes a web to travel through a glue roller rotatably provided, a transfer roller in contact with the glue roller, and an outer peripheral surface of the transfer roller. A glue supply means for supplying glue to the outer peripheral surface of at least one of the travel path, the glue roller and the transfer roller, and the glue supplied to the outer peripheral surface is transferred from the transfer roller to the web on the travel path, and desired on this web A transfer means for forming a paste application area, and the transfer means is formed on the outer peripheral surface of the transfer roller in accordance with the paste application area and receives a glue in cooperation with the glue roller, and a transfer pattern. A pressure roller that is in rolling contact with the roller via a web on the travel path and that presses the web against the outer peripheral surface of the transfer roller, the press roller forming the outer peripheral surface, and the outer peripheral surface of the transfer roller Press When that is elastically deformed in accordance with the groove pattern has a resilient outer layer fits partially within the groove pattern with the web (claim 1).

  According to the above-described glue application device, the glue supplied to the outer peripheral surface of at least one of the glue roller and the transfer roller is received in the groove pattern of the transfer roller by the rolling contact action of the glue roller and the transfer roller. Thereafter, when the groove pattern passes through the pressing roller, a part of the elastic outer layer of the pressing roller is inserted into the groove pattern with the web, and a part of the web is pressed against the glue in the groove pattern. By such pressing, the glue in the groove pattern is uniformly applied to the web, and as a result, a glue application area corresponding to the groove pattern is formed on the web.

Preferably, the groove pattern has a closed shape in the width direction of the transfer roller. In this case, even if the pressure applied by the pressure roller is high, the glue of the groove pattern does not leak out of the groove pattern, and the glue does not stick out from the glue application area.
The web is a paper web for forming chip paper for a filter cigarette by cutting, and the transfer means further includes contact / separation means for contacting and separating the pressure roller with respect to the transfer roller, and the pressure roller is an outer peripheral surface of the transfer roller. When the web is pressed through the web, the peripheral surface of the elastic outer layer forms an arc-shaped contact surface along the outer peripheral surface of the transfer roller by elastic deformation. The contact surface is positioned upstream of the contact point of the web on the outer peripheral surface of the transfer roller before being pressed by the pressure roller in the running direction of the web. Furthermore, it is preferable that the downstream end of the contact surface is aligned with the contact point in the running direction of the paper web.

  Specifically, the transfer unit is provided on the travel path upstream of the pressing roller, and a lift guide that guides the travel of the web, and an operating position of the lift guide that contacts the web at the contact point of the transfer roller, And further comprising lift means for moving the lift guide in conjunction with or independently of the pressing roller at a rest position of the lift guide for separating the web from the contact point.

  When the glue applicator is in a resting state, the pressure roller and the lift guide are both separated from the transfer roller. When the lift guide is positioned at the operating position from such a state, the paper web travels toward the cutting supply device disposed at the subsequent stage of the glue application device while contacting the outer peripheral surface of the transfer roller at the contact point, and the cutting supply device Cuts into individual chip papers on the paper web.

  Thereafter, when the pressure roller moves toward the transfer roller and rolls into contact with the transfer roller via the paper web, the operation of the glue applying device is started. At this time, as described above, the elastic outer layer of the pressure roller Since the contact surface is positioned on the upstream side of the contact point on the transfer roller described above, the transfer of the glue from the groove pattern of the transfer roller to the paper web is also performed on the upstream side of the contact point. Therefore, after the glue is transferred, when the paper web passes through the contact point of the transfer roller, the paper web is immediately separated from the outer peripheral surface of the transfer roller and travels toward the cutting and feeding device.

  Note that the lift guide and the pressing roller may move in conjunction with each other toward the transfer roller, and may simultaneously contact and press the transfer roller via the paper web.

In the web paste application apparatus according to claims 1 and 2, since a part of the elastic outer layer of the pressing roller is inserted into the groove pattern of the transfer roller with the web, the glue in the groove pattern is uniformly applied to the web. Not only can this be done, but the paste application area of the web can be exactly matched to the groove pattern.
In the web paste application apparatus according to claims 3 to 5, the elastic outer layer of the pressure roller forms a contact surface with respect to the transfer roller upstream of the contact point between the paper web and the transfer roller at the start of operation. After the glue is transferred to the paper web, the paper web is smoothly separated from the outer peripheral surface of the transfer roller, and the paper web after applying the glue does not wrap around the outer peripheral surface of the transfer roller, and the operation of the glue applying device is stabilized. Can be implemented.

FIG. 1 schematically shows a filter cigarette manufacturing process (a) and a manufacturing apparatus (b) thereof.
The manufacturing apparatus includes a drum row 10, and the drum row 10 is formed by connecting a plurality of grooved drums, and adjacent grooved drums are rotated in opposite directions. Specifically, the grooved drum shown in FIG. 1 is referred to as a separator drum 12, a transfer drum 14, a hopper drum 16, a rolling drum 18 and an inspection drum 20 from the right end side.

The separator drum 12 is supplied with a cigarette rod CR in the groove, and the cigarette rod CR has a length corresponding to two cigarettes and is cut into individual cigarettes C equally.
The separator drum 12 as a result of such rotation, received cigarette rod CR, that is, to convey the cigarettes C of two, in this conveying process, (see P ₁ position in FIG. 1) that these cigarettes C are separated from each other.

Thereafter, the two cigarettes C on the separator drum 12 are received by the groove of the hopper drum 16 through the transfer drum 14 and are conveyed along with the rotation of the hopper drum 16.
On the other hand, another drum row is connected to the hopper drum 16 upstream from the rolling contact point with the transfer drum 14, and this drum row has a grooved drum 22 at its end. The grooved drum 22 receives the filter plug FP at the P ₂ position, conveys the received filter plug FP along with its rotation, and supplies it to the groove of the hopper drum 16. Here, the two cigarettes C supplied from the transfer drum 14 to the groove of the hopper drum 16 are positioned on both sides of the filter plug FP.

Thereafter, at the process of being conveyed on the hopper drum 16, cigarettes C of the two is moved toward the opposite ends of the filter plug FP, at P ₃ position, double cigarettes C are in close contact at both ends of the filter plug FP An intermediate product I of the filter cigarette is formed.
On the other hand, a suction drum 24 is disposed in the vicinity of the hopper drum 16 so as to be separated from the drum 22 with the groove in the diameter direction, and the suction drum 24 is rotated in the opposite direction to the hopper drum 16.

A travel path extends from the suction drum 24 to a web roll (not shown) of the paper web PW, and a feed roller unit 26 is disposed in the middle of the travel path. As the feed roller unit 26 is driven, the paper web PW is fed from the web roll onto the travel route and travels toward the suction drum 24 on the travel route.
Further, a glue applying device 28 is disposed between the feed roller unit 26 and the suction drum 24 in the traveling path, and this glue applying device 28 applies glue on one side (back side) of the paper web PW to obtain a desired one. A paste application area is formed. The glue application device 28 will be further described later.

  The suction drum 24 sucks the surface of the paper web PW, and supplies the paper web PW toward the hopper drum 16 with the rotation. A coke knife 30 is disposed in the vicinity of the suction drum 24. As the coke knife 30 rotates, the paper web PW is periodically cut on the suction drum 24 to form individual chip papers TP. Accordingly, the suction drum 24 supplies the chip paper TP to the hopper drum 16.

Tip paper TP, at P ₄ position on the hopper drum 16, is bonded to the intermediate product I as described above, the intermediate product I is formed as a so-called Hatamaki.
Thereafter, the intermediate product I is transported toward the rolling drum 18 together with the chip paper TP adhered thereto. A plate-shaped rolling hand 32 faces between the rolling drum 18 and the hopper drum 16, and this rolling hand 32 forms a rolling passage for the intermediate product I with the rolling drum 18.

The intermediate product I including the chip paper TP is received from the hopper drum 16 into the groove of the rolling drum 18 and enters the rolling passage at the same time. In the process in which the intermediate product I passes through the rolling passage, the intermediate product I rotates in the groove due to frictional contact with the rolling hand 32, and the tip paper TP is wound around the intermediate product I along with this rotation. . Accordingly, at the position P ₅ that has passed through the rolling passage, a double filter cigarette DFC in which two cigarettes C are connected by the chip paper TP via the filter plug FP is formed.

Thereafter, the double filter cigarette DFC is transferred from the rolling drum 18 to the groove of the inspection drum 20 and is transported on the inspection drum 20 as it rotates.
The inspection drum 20 includes a rotary knife 34. When the double filter cigarette DFC passes through, the rotary knife 34 cuts the double filter cigarette DFC equally to form the filter cigarette FC here.

  The double filter cigarette DFC and the filter cigarette FC are subjected to a desired inspection such as dilution and appearance of mainstream smoke on the inspection drum 20 and then passed through a reversing drum (not shown) connected to the subsequent stage of the inspection drum 20. It is supplied to a belt conveyor (not shown). The reversing drum reverses the posture of one of the left and right filter cigarettes FC received from the inspection drum 20 and sends it to the belt conveyor with the orientation of the filter cigarettes FC.

FIG. 2 shows the glue applying device 28 described above more specifically.
The glue applying device includes a glue pod 40, and the glue pod 40 has a box shape with an upper surface opened. The glue pod 40 accommodates approximately the lower half of the glue roller 42, and a roller shaft 44 of the glue roller 42 is rotatably supported by the glue pod 40 via a bearing (not shown).
A partition wall 46 is provided immediately below the glue roller 42 on the bottom wall of the glue pod 40, and the partition wall 46 extends between the inner side walls of the glue pod 40 in the axial direction of the glue roller 42. Accordingly, the inside of the glue pod 40 is partitioned into left and right chambers by the partition wall 46, and the left chamber as viewed in FIG. 2 is formed as a glue reservoir 48 storing glue.

  The glue roller 42 has a smooth outer peripheral surface, and a predetermined gap is secured between the glue roller 42 and the partition wall 46. Therefore, in FIG. 2, when the glue roller 42 rotates counterclockwise, and the outer peripheral surface of the glue roller 42 passes through the glue reservoir 48 with this rotation, the glue roller 42 corresponds to a gap on the outer peripheral surface. The glue can be removed from the glue reservoir 48 by depositing a thick glue layer. In FIG. 2, reference numeral GL indicates a glue layer attached to the outer peripheral surface of the glue roller 42.

  As is apparent from FIG. 2, the upper half of the glue roller 42 protrudes upward from the glue pod 40, and the transfer roller 50 is disposed between the glue roller 42 and the paper web PW on the travel path described above. ing. The transfer roller 50 is always in rolling contact with the outer peripheral surface of the glue roller 42 and is rotated in opposite directions at the same peripheral speed as that of the glue roller 42. That is, as shown in FIG. 3, gears 54 and 56 that mesh with each other are attached to the roller shaft 52 of the transfer roller 50 and the roller shaft 44 of the glue roller 42, respectively, and rotational force is applied to the roller shaft 44 of the glue roller 42. It is supposed to be entered.

  As apparent from FIG. 3, the transfer roller 50 has the same width as the glue roller 42, and a pair of groove patterns GP are formed on the outer peripheral surface thereof. In this embodiment, as apparent from FIG. 4, the pair of groove patterns GP are separated in the width direction of the transfer roller 50 through the thin center land 58, and the center land 58 is positioned at the center of the transfer roller 50 in the width direction. ing.

  Each groove pattern GP is intermittently provided in the circumferential direction of the transfer roller 50 between the circumferential grooves 60 and the left and right circumferential grooves 60 that are spaced apart in the width direction of the transfer roller 50 and continuous in the circumferential direction of the transfer roller 50. The cross grooves 62 are formed by connecting the left and right circumferential grooves 60 to each other. The cross groove 62 of each groove pattern GP is positioned at the same rotational phase in the circumferential direction of the transfer roller 50 and has the same depth as the circumferential groove 60. Specifically, the circumferential groove 60 and the cross groove 62 have a depth of 15 to 30 μm.

  The pair of groove patterns GP described above are formed on the outer peripheral surface of the transfer roller 50 by recesses that leave both side edge portions, the center land 58, and a plurality of protrusions 64 for forming the cross grooves 62. Yes. Accordingly, each groove pattern GP has a shape in which both sides thereof are closed by the side periphery of the transfer roller 50 and the center land 58 when viewed in the width direction of the transfer roller 50.

Note that the width W (see FIG. 4) of the pair of groove patterns GP including the center land 58 is slightly smaller than the width of the paper web PW described above or matches the width of the paper web PW.
When the pair of groove patterns GP described above are formed on the outer peripheral surface of the transfer roller 50, when the transfer roller 50 is brought into rolling contact with the glue roller 42 via the glue layer GL, the glue of the glue layer GL is paired with the grooves. As a result, a pair of glue transfer patterns GT is formed on the outer peripheral surface of the transfer roller 50 according to the pair of groove patterns GP, as shown in FIG.

  More specifically, as shown in FIG. 5, when the transfer roller 50 is brought into rolling contact with the glue roller 42 via the glue layer GL, the glue of the glue layer GL corresponding to the groove pattern GP is transferred between the transfer roller 50 and the glue roller 42 side. Thus, a pair of paste transfer patterns GT is formed on the outer peripheral surface of the transfer roller 50. In FIG. 5, reference numerals OG and GR respectively indicate glue pools that cannot pass through the transfer roller 50 and glue remaining on the outer peripheral surface of the glue roller 42 among the glue of the glue layer GL.

Further, as shown in FIG. 2, a pressure roller 66 is arranged above the transfer roller 50 with the paper web PW on the travel path interposed therebetween. In FIG. 2, reference numeral 68 is transferred on the travel path. The guide roller rotatably arranged on the upstream side of the roller 50 is shown.
A roller shaft 70 of the pressing roller 66 is rotatably supported by a roller holder 72 via a bearing, and the roller holder 72 is attached to a bracket 74 via a plurality of screws 76. The bracket 74 is rotatably attached to a support shaft 78, and the support shaft 78 is supported by the frame of the glue applying device 28. Accordingly, the pressing roller 66 can swing around the support shaft 78, and can be brought into and out of contact with the transfer roller 50 by this swinging.

Further, as shown in FIG. 6, a link 80 is rotatably attached to the support shaft 78 adjacent to the bracket 74, and the link 80 is connected to the bracket 74 via a connection screw 82. Therefore, the bracket 74 can be rotated integrally with the link 80.
As apparent from FIG. 2, the air cylinder 94, that is, the tip of the piston rod 96 is rotatably connected to the link 80, and the base end of the air cylinder 94 is rotatably attached to the rotating bracket 98. It has been. In addition, the rotation bracket 98 is rotatably supported by the frame 92 of the glue application device 28 indicated by a one-dot chain line in FIG.

When the air cylinder 94 is extended from the operating position shown in FIG. 2, the pressing roller 66 rotates counterclockwise around the support shaft 78 via the link 80 and the bracket 74, and the transfer roller as shown by a two-dot chain line. You can leave 50.
Furthermore, as shown in FIG. 2, a lift guide 100 of the paper web PW is attached to the bracket 74, and the lift guide 100 rotates integrally with the bracket 74, that is, the pressing roller 66. . The lift guide 100 includes a pair of guide rollers 102 and 104 that are disposed upstream of the transfer roller 50 in the travel path of the paper web PW and are separated along the travel path. Accordingly, the paper web PW on the travel path is guided toward the transfer roller 50 while being guided by the guide rollers 102 and 104.

When the pressing roller 66 is in the illustrated operating position, the paper web PW that has passed through the guide rollers 102 and 104 is tangent to the outer peripheral surface of the transfer roller 50 as shown by a two-dot chain line in FIG. The contact point of the paper web PW is indicated by CP in FIG.
On the other hand, when the lift guide 100 is lifted together with the bracket 74 to the rest position indicated by the two-dot chain line in FIG. 2 in response to the contraction operation of the air cylinder 94, the paper web PW is moved together with the pressing roller 66 as indicated by the two-dot chain line. The transfer roller 50 can be separated from the outer peripheral surface.

On the other hand, as is apparent from FIG. 6, the pressing roller 66 has a double structure, and its outer peripheral surface is formed by the elastic outer layer 106. The elastic outer layer 106 is elastically deformable and has a thickness sufficiently larger than the depth of the groove pattern GP in the transfer roller 50.
When the pressing roller 66 is in the operating position shown in FIG. 2, the pressing roller 66 rolls against the outer peripheral surface of the transfer roller 50 via the paper web PW, and presses the paper web PW against the outer peripheral surface of the transfer roller 50 with a predetermined pressing force. It is in an open state.

When the pressing roller 66 is pressed against the outer peripheral surface of the transfer roller 50 via the paper web PW, the outer peripheral surface of the elastic outer layer 106 is elastically deformed to form an arc shape along the outer peripheral surface of the transfer roller 50 as shown in FIG. The contact surface 108 is formed, and the paper web PW is sandwiched between the contact surface 108 and the outer peripheral surface of the transfer roller 50 as shown by a solid line in FIG.
Here, the contact surface 108 is positioned on the upstream side of the contact CP described above in the traveling direction of the paper web PW. In this embodiment, the downstream end of the contact surface 108 matches the contact CP.

Further, when the contact surface 108 of the elastic outer layer 106 is pressed against the outer peripheral surface of the transfer roller 50, a part of the contact surface 108 is accompanied by the paper web PW as shown in FIG. The paper web PW is pressed against the glue in each groove pattern GP in a pressed state.
Therefore, even if the glue in the groove pattern GP is a spotted pattern, the spotted glue is uniformly leveled by pressing the paper web PW. As a result, the thickness of the glue transferred from each groove pattern GP to the paper web PW, that is, the applied glue is uniform.

  In addition, as described above, each groove pattern GP is closed only in the width direction of the transfer roller 50, and has an open shape in the circumferential direction thereof, so that the glue in the groove pattern GP is pressed by the paper web PW. Even if this is the case, no glue sticks out in the width direction from the groove pattern GP. As a result, as shown in FIG. 9, the paste is applied to the paper web PW accurately and surely according to the groove pattern GP (transfer pattern GT), and a paste application area GA corresponding to each groove pattern GP is formed. .

As described above, the elastic outer layer 106 has a hardness of about 45 to 55 Hs (JIS A) in order to ensure the insertion of the elastic outer layer 106 into the groove pattern GP having a depth of 15 to 30 μm. The pressing force of the pressing roller 66 is preferably about 30 N or more.
In this embodiment, as is apparent from FIG. 9, the pair of paste application areas GA are separated from each other by a dry zone Dc (non-applied area of glue) positioned at the center of the paper web PW. A dry zone Dv is also formed in the fabric area GA with an interval in the longitudinal direction of the paper web PW. Further, the paper web PW shown in FIG. 9 has dry zones Ds formed on both side edges thereof.

As shown in FIG. 8, the dry zone Ds is formed by making the width of the paper web PW slightly larger than the width W of the pair of groove patterns GP, but it is not indispensable.
On the other hand, the dry zones Dc and Dv are formed by the center land 58 and the projections 64 of the transfer roller 50 as is clear from the above description. In the dry zones Dc and Dv, the paper web PW has a perforated area in the filter chip FT. This is indispensable when the filter cigarette FC is used, that is, when it is used for cutting the chip paper TP having a perforated region.

That is, as described above, when the double filter cigarette DFC is cut from the center by the rotary knife 34 (see FIG. 1 (b)), this cutting is performed in the dry zone Dc of the paper web PW. Thus, it is possible to reliably prevent the glue from adhering to the rotary knife 34.
When each chip paper TP is cut from the paper web PW, each chip paper TP has one dry zone Dv, and the dry zone Dv is positioned corresponding to the perforated area of the chip paper TP.

  Specifically, the filter cigarette FC shown in FIG. 10 has one perforated row PL as a perforated area in its chip paper TP, and this perforated row PL is each dry zone Dv of the paper web PW as apparent from FIG. Will be positioned within. As described above, since the paste is accurately applied to the paper web PW according to the groove pattern GP, the paste does not protrude from the application area GA into the dry zone Dv, and the filter chip FT corresponding to the dry zone Dv (see FIG. 10)) and the perforated row PL are not blocked by glue. Therefore, when smoking the filter cigarette FC, air is reliably introduced into the filter chip FT through the perforated row PL of the chip paper TP and the outer peripheral surface portion, and the air permeability of the filter chip FT is accurately maintained at a desired value. Can do.

  As described above, when the chip paper TP is cut from the paper web PW, since the paste is uniformly applied to the individual chip paper TP by the action of the pressing roller 66, the chip paper TP is surely attached to the intermediate product I described above. The flag is stably formed. After that, the chip paper TP wound around the intermediate product I is securely bonded to the intermediate product I, and the double filter cigarette DFC is stably formed. That is, the chip paper TP not only exhibits sufficient initial adhesive strength to the intermediate product I, but also the winding to the intermediate product I becomes good, and the molding failure of the filter cigarette FC due to the poor winding of the chip paper TP. Greatly improved.

On the other hand, when the above-described filter cigarette FC manufacturing apparatus, that is, the operation of the glue applying apparatus 28 is in a ready state, the air cylinder 94 is in an extended state, so that the pressing roller 66 is separated from the transfer roller 50. And the lift guide 100 is also positioned in the upper rest position.
At this time, the glue roller 42 and the transfer roller 50 of the glue applying device 28 are both in a rotating state, and the paper web PW on the travel path is separated from the transfer roller 50 as indicated by a two-dot chain line in FIG. In the state, the traveling is stopped.

  When the paper web PW starts to start the operation of the glue applying device 28 from the above-described state, and the air cylinder 94 is contracted to the original state, the lift guide 100 is lowered to the operating position on the transfer roller 50 side. The lift guide 100 brings the paper web PW on the travel path into contact with the contact CP of the transfer roller 50, and at the same time, the pressing roller 66 rolls into contact with the transfer roller 50 via the paper web PW.

  Accordingly, since the elastic outer layer 106 of the pressing roller 66 is pressed against the transfer roller 50 through the paper web PW from this point, glue is transferred, that is, applied to the paper web PW from each groove pattern GP of the transfer roller 50 as described above. The At this time, the contact surface 108 (see FIG. 7) formed on the elastic outer layer 106 is upstream of the contact CP of the transfer roller 50, more specifically, the downstream end thereof coincides with the contact CP, and the upstream of the contact CP. Therefore, as soon as the paper web PW coated with glue passes through the contact CP, the insertion of the transfer roller 50 into the groove pattern GP is immediately released and smoothly separated from the outer peripheral surface of the transfer roller 50. It goes to the suction drum 24 described above. As a result, after starting the operation of the glue applying device 28, the paper web PW is supplied to the suction drum 24 without being wound around the outer peripheral surface of the transfer roller 50, and the operation of the glue applying device 28 can be started stably.

The present invention is not limited to the above-described embodiment, and various modifications can be made.
For example, in the case of the glue applying device 28 of FIG. 11, the lower half of the transfer roller 50 is accommodated in the glue pod 40, and the transfer roller 50 can receive the glue in the glue reservoir 48 on the outer peripheral surface thereof. Accordingly, when the outer peripheral surface of the transfer roller 50 comes out of the glue reservoir 48, a glue layer is formed on the outer peripheral surface in a state where the groove pattern GP is filled with glue.

On the other hand, the glue roller 42 rolls in contact with the outer peripheral surface of the transfer roller 50 downstream of the glue reservoir 48 as viewed in the rotation direction of the transfer roller 50, and removes excess glue adhering to the outer peripheral surface of the transfer roller 50. The glue in the pattern GP is separated into the transfer roller 50 and the glue roller 42 side when the outer peripheral surface of the transfer roller 50 passes through the glue roller 42 (see FIG. 5).
Thereafter, when the paper web PW is sandwiched between the transfer roller 50 and the pressing roller 66, the glue is transferred from the groove pattern GP to the paper web PW in the same manner as described above, and the glue application area GA of the paper web PW is formed. Is done.

  The glue application device 28 shown in FIG. 12 includes a glue supply nozzle 110 instead of the glue pod 40, and the glue supply nozzle 110 is disposed above a region where the glue roller 42 and the transfer roller 50 are in rolling contact with each other. The glue discharged from the glue supply nozzle 110 forms a glue pool X between the glue roller 42 and the transfer roller 50, and the glue in the glue pool X is transferred by the rolling contact between the glue roller 42 and the transfer roller 50. It is supplied in the same manner only in the groove pattern GP on the side. Accordingly, even in the case of the glue applying device 28 of FIG. 12, the glue is uniformly and accurately applied from the transfer roller 50 to the paper web PW.

11 and 12, it goes without saying that the pressing roller 66 has the contact surface 108 for the transfer roller 50 positioned on the upstream side of the contact CP described above.
In the above-described embodiment, the pressing roller 66 and the lift guide 100 are brought into contact with and separated from the transfer roller 50 in conjunction with each other. However, these contacting and separating may be independent. In this case, when the operation of the glue applying device 28 is started, first, the lift guide 100 is lowered, and after the paper web PW comes into contact with the outer peripheral surface of the transfer roller 50 at the contact CP, the pressing roller 66 passes through the paper web PW. When the transfer roller 50 is pressed and, conversely, when the operation of the glue applying device 28 is stopped, the pressure roller 50 first moves away from the transfer roller 50 side, and then the lift guide 100 is raised, and the paper web PW is moved from the transfer roller 50. Leave.

  The glue applicator of the present invention is not limited to applying glue to the paper web for forming chip paper, but can apply glue to webs for various applications, The pattern is not limited to the illustrated pattern.

It is a figure for demonstrating manufacture of a filter rod, (a) shows the manufacturing process of a filter rod roughly, (b) shows the manufacturing apparatus which implements a manufacturing process schematically. It is the front view which partially cut and showed the paste application | coating apparatus of one Example integrated in the manufacturing apparatus of FIG. It is sectional drawing of the glue application | coating apparatus of FIG. FIG. 4 is a partially developed outer peripheral surface of the transfer roller in FIGS. 2 and 3. It is a figure for demonstrating transfer of the glue from a glue roller to a transfer roller. It is sectional drawing which showed the press roller which roll-contacts to a transfer roller, and its periphery. It is a figure for demonstrating the rolling contact position of the press roller with respect to a transfer roller. It is sectional drawing which expanded and showed the rolling contact area | region of a transfer roller and a press roller. It is the figure which showed the application area | region of the glue apply | coated to the paper web from the transfer roller. It is a longitudinal cross-sectional view of a filter cigarette. It is the front view which showed the paste coating device of the modification. It is the front view which showed the glue application | coating apparatus of the other modification.

Explanation of symbols

40 Paste pod (paste supply means)
42 Glue roller 50 Transfer roller 66 Press roller (transfer means)
94 Air cylinder (contacting / separating means and moving means)
106 Elastic outer layer (transfer means)
108 contact surface 110 glue supply nozzle (glue supply means)
CP contact FC filter cigarette GP groove pattern (transfer means)
PW Paper Web TP Chip Paper

Claims (5)

A glue roller provided rotatably;
A transfer roller that is in rolling contact with the glue roller;
A travel path for traveling the web through the outer peripheral surface of the transfer roller;
Glue supply means for supplying glue to the outer peripheral surface of at least one of the glue roller and the transfer roller;
Transfer means for transferring the glue supplied to the outer peripheral surface from the transfer roller to a web on the travel path, and forming a desired glue application area on the web;
The transfer means includes
A groove pattern formed on the outer peripheral surface of the transfer roller according to the paste application area, and receiving glue in cooperation with the glue roller;
A pressing roller that is in rolling contact with the transfer roller via the web on the travel path, and that presses the web against an outer peripheral surface of the transfer roller;
The pressing roller forms an outer peripheral surface thereof, and is elastically deformed according to the groove pattern when pressed against the outer peripheral surface of the transfer roller, and is elastically partially embedded in the groove pattern with the web. A web glue applicator characterized by having an outer layer.   2. The web glue applicator according to claim 1, wherein the groove pattern has a closed shape in the width direction of the transfer roller. The web is a paper web for forming chip paper for a filter cigarette by cutting,
The transfer means further includes contact / separation means for contacting / separating the pressing roller with respect to the transfer roller,
When the pressing roller is pressed against the outer peripheral surface of the transfer roller via the web, the peripheral surface of the elastic outer layer forms an arcuate contact surface along the outer peripheral surface of the transfer roller by elastic deformation thereof. And
The contact surface is positioned on the upstream side in the running direction of the web with respect to the contact point with which the web contacts on the outer peripheral surface of the transfer roller before the pressing of the pressing roller. 2. A web glue applicator according to 2.   4. The web glue applicator according to claim 3, wherein the downstream end of the contact surface is aligned with the contact point in the traveling direction of the paper web. The transfer means includes
A lift guide that is provided upstream of the pressing roller in the travel path and guides the travel of the web;
The lift guide is interlocked with or independent of the transfer roller between an operating position of the lift guide that contacts the web at the contact point of the transfer roller and a rest position of the lift guide that separates the web from the contact point. The web paste applicator according to claim 3, further comprising lift means for contacting and separating the web.

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