Sticking apparatus

Abstract

To realize sticking of a sheet piece onto an object with a simple configuration.SOLUTION: A sticking apparatus for sticking a sheet piece onto a side circumferential surface of a columnar or cylindrical object comprises a rotary unit and a conveyance unit. The rotary unit is capable of rotating the object around a central axis while the central axis is kept horizontal. The conveyance unit, on which the sheet piece is placed with an adhesive surface facing upwards, forwards the sheet piece in that state into the side circumferential surface of the object which the rotary unit rotates.SELECTED DRAWING: Figure 1A

Description

[Technical field]

[0001] The present invention relates to a technique for attaching a sheet piece to an object. [Background technology]

[0002] As an example of a technique for attaching a sheet piece to an object (attaching technique), Patent Document 1 discloses a technique in which the object is a container with a cylindrical body (such as a plastic bottle), and a sheet piece is attached to the side surface of the object (the outer surface of the body) while the object is placed upright. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2011-93583 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in order to attach a sheet piece to a vertically oriented object, the sheet piece must also be vertically oriented, and a complicated mechanism is required to enable the sheet piece to be transported in such a vertical position. For example, in Patent Document 1, a suction belt is required to suck the sheet piece and maintain the vertical position.

[0005] SUMMARY OF THE PRESENT DISCLOSURE An object of the present invention is to provide a method for attaching a sheet piece to an object using a simple structure. [Means for solving the problem]

[0006] The application device according to the present invention is a device for applying a sheet piece to a side peripheral surface of a columnar or cylindrical object, and includes a rotation unit and a transport unit. The rotation unit is capable of rotating the object around its central axis while keeping the central axis horizontal. The transport unit places the sheet piece with the adhesive side facing upward, and feeds the sheet piece in this state onto the side peripheral surface of the object being rotated by the rotation unit (mode 1).

[0007] According to the above-mentioned bonding device, it is possible to feed a horizontally placed sheet piece to the side peripheral surface of the horizontally placed object while rotating the horizontally placed object. Therefore, it is possible to bond the sheet piece to the side peripheral surface of the object while it is in the horizontally placed state. In other words, when bonding the sheet piece to the object, it is possible to supply the sheet piece to the object simply by placing it on the conveying unit (in other words, without requiring a complicated mechanism such as a suction belt).

[0008] In the application device of the above-mentioned aspect 1, the rotation unit is capable of rotating the object around a central axis without changing its position and may include at least one rotating roller that supports the object from below, and the transport unit may feed a sheet piece placed with the adhesive side facing upwards between the object and the rotating roller that supports the object from below (aspect 2).

[0009] According to the above-mentioned aspect 2, it is possible to feed the horizontally placed sheet piece between the object and the rotating roller supporting it from below while rotating the horizontally placed object in the same position. This makes it possible to sandwich the sheet piece between the object and the rotating roller by utilizing the gravity of the object itself and to continue to feed the sheet piece along the side surface of the rotating object. In other words, it becomes possible to make the object itself function as a nip roller for attaching the sheet piece to the object.

[0010] In the application device of the above-mentioned aspect 2, the rotation unit may include at least two rotating rollers that support the object from below, and the at least two rotating rollers may be arranged so that their rotation axes are parallel and horizontal to each other (aspect 3).

[0011] According to the above-mentioned aspect 3, it is possible to realize, with a simple configuration, placement of the object on its side and rotation of the object in that state.

[0012] In the application device according to the above-mentioned aspect 1, the transport unit may have a transport surface for transporting the sheet piece, and the rotation unit may be configured to be able to rotate the object around its central axis while the object is placed on the transport surface with its central axis horizontal (aspect 4). In this case, the transport unit can feed the sheet piece, placed with its adhesive surface facing upward, between the object and the transport surface.

[0013] According to the above-mentioned aspect 4, it is possible to continuously feed the sheet piece along the side circumferential surface of the rotating object while sandwiching the sheet piece between the object and the conveying surface by utilizing the gravity of the object itself. In other words, it is possible to make the object itself function as a nip roller for attaching the sheet piece to the object.

[0014] In the application device according to any one of the above aspects 1 to 4, the transport unit may be configured to include a transport section that transports the sheet piece, and to be able to move the transport section from a first position, which is a reference position for transporting a sheet piece placed there, to a second position different from the first position, and then to return the transport section to the first position again (aspect 5).

[0015] According to the above-mentioned aspect 5, it becomes possible to set the sheet piece at a position (second position) different from the first position, move it to the first position, and then start conveying it toward the rotation unit.

[0016] The application device according to the above-mentioned aspect 5 may further include a pressing unit (aspect 6). Here, the pressing unit is a unit that can press the sheet piece or a part of the strip-shaped sheet that will become the sheet piece toward the conveying part at the second position, maintain the state while the conveying part moves from the second position to the first position, and thereafter release the state after the conveying part reaches the first position.

[0017] According to the sixth aspect, by pressing the sheet piece set at the second position with the pressing unit, it is possible to prevent the sheet piece from falling off while the conveying section is moving. Then, when the conveying section reaches the first position, the pressing of the sheet piece by the pressing unit is released, making it possible to start conveying the sheet piece toward the rotating unit. Effect of the Invention

[0018] According to the present invention, the attachment of a sheet piece to an object can be realized with a simple configuration. [Brief description of the drawings]

[0019] [Figure 1A] 1 is a perspective view conceptually showing a sticking device according to an embodiment; [Figure 1B] 1 is a block diagram conceptually illustrating a pasting device according to an embodiment. [Diagram 2] 2 is a perspective view conceptually showing a belt-shaped sheet used in a sheet piece forming device provided in the bonding device; FIG. [Figure 3A] FIG. 2 is a perspective view showing a sheet piece forming device provided in the bonding device with a portion of the configuration thereof omitted. [Figure 3B] FIG. 2 is a perspective view showing a main part of a configuration of a pressing unit included in the sheet piece forming device. [Figure 4A] FIG. 2 is a side view showing the main components of the sheet piece forming device. [Figure 4B] 4 is a conceptual diagram showing a cutting mechanism included in the sheet piece forming device, as viewed from the opposite direction to the pulling-out direction. FIG. [Diagram 5]4 is a flowchart showing a control process executed by a control device included in the pasting device. [Figure 6A] 3A to 3C are conceptual diagrams sequentially showing the operation (forming operation) of the sheet piece forming device. [Figure 6B] 3A to 3C are conceptual diagrams sequentially showing the operation (forming operation) of the sheet piece forming device. [Figure 6C] 3A to 3C are conceptual diagrams sequentially showing the operation (forming operation) of the sheet piece forming device. [Figure 6D] 3A to 3C are conceptual diagrams sequentially showing the operation (forming operation) of the sheet piece forming device. [Figure 6E] 3A to 3C are conceptual diagrams sequentially showing the operation (forming operation) of the sheet piece forming device. [Figure 6F] 3A to 3C are conceptual diagrams sequentially showing the operation (forming operation) of the sheet piece forming device. [Figure 6G] 3A to 3C are conceptual diagrams sequentially showing the operation (forming operation) of the sheet piece forming device. [Figure 7] 3A and 3B are conceptual diagrams showing a pasting operation performed by the pasting device. [Figure 8] FIG. 11 is a side view showing a main part of the configuration of a sheet piece forming device according to a first modified example. [Figure 9] 13 is a conceptual diagram showing a pasting device according to a fourth modified example and its pasting operation. FIG. [Figure 10] 13 is a conceptual diagram showing a pasting device according to a fifth modified example and its pasting operation. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] [1] Configuration of the application device 1A and 1B are a perspective view and a block diagram conceptually showing a bonding device according to an embodiment. The bonding device of this embodiment is a device that bonds a sheet piece Qs (such as a label; see Figs. 7(A) to 7(C)) to a side circumferential surface (outer circumferential surface of the body) of an object G, which is a container (such as a plastic bottle) having a columnar or cylindrical body, while the object G is placed horizontally. The bonding device includes a sheet piece forming device Ds that forms the sheet piece Qs, a rotation unit UtX that rotates the object G while placed horizontally, and a control device Dt that controls them. The configuration of each part will be specifically described below.

[0021] [1-1] Sheet piece forming device 2 is a perspective view conceptually showing a strip-shaped sheet Q used in the sheet piece forming device Ds. As shown in this figure, the strip-shaped sheet Q is a long sheet in which a plurality of regions Rf that become sheet pieces Qs (see FIG. 6E) are continuously connected via perforations Pm.

[0022] In addition, the strip sheet Q is pre-coated with an adhesive to enable the sheet piece Qs to be attached to the side peripheral surface of the object G. In this embodiment, the adhesive is applied to one side of the strip sheet Q. Specifically, in this embodiment, the sheet piece Qs formed from the strip sheet Q is wrapped around the body of the object G. More specifically, one end of the sheet piece Qs is attached to the body, and the sheet piece Qs is wrapped around the body starting from that end, and then the other end is attached onto the one end (see Fig. 7(A) to Fig. 7(C)). Therefore, the strip sheet Q is pre-coated with an adhesive on both ends in the width direction dw of one side. The sheet piece Qs is not limited to being wrapped around the body of the object G, and may be attached only to a part of the circumference of the body. In addition, the strip sheet Q may be pre-coated with an adhesive on a part of the area other than both ends in the width direction dw, or may be pre-coated with an adhesive on the entire area including both ends.

[0023] The sheet piece forming device Ds of this embodiment makes it possible to use the above-mentioned strip-shaped sheet Q to sequentially form and transport (discharge) sheet pieces Qs from a leading region Rft (see Figure 2) at the leading end of the strip-shaped sheet Q among the multiple regions Rf.

[0024] FIG. 3A is a perspective view conceptually showing the sheet piece forming device Ds. FIG. 4A is a side view showing the main components of the sheet piece forming device Ds. Note that the support portion 33 (see FIG. 1A) of the pressing unit Ut3 is omitted in FIG. 3A. As shown in these figures, the sheet piece forming device Ds of this embodiment includes a drawing mechanism 101 that draws out the strip-shaped sheet Q, and a cutting mechanism 102 that cuts off the leading region Rft from the strip-shaped sheet Q. The configuration of each mechanism will be specifically described below.

[0025] [1-1-1]Drawer mechanism The pull-out mechanism 101 is a mechanism that enables the leading region Rft of the strip sheet Q to be pinched and pulled out. Specifically, the pull-out mechanism 101 is a mechanism that pulls out the strip sheet Q only by the pull-out force generated by the pull-out mechanism 101 itself, and does not necessarily require a motor for unwinding the strip sheet Q from the upstream side. In the example of FIG. 3A, the strip sheet Q is wound around a core material or the like to form a roll Qr (see also FIG. 2), and is pulled out from the roll Qr only by the pull-out force of the pull-out mechanism 101. In this embodiment, the strip sheet Q is disposed so that the adhesive application surface (adhesive surface) faces up when the strip sheet Q is pulled out by the pull-out mechanism 101. The sheet piece forming device Ds may be provided with a motor that supplementarily unwinds the strip sheet Q from the upstream side in response to the pull-out of the strip sheet Q by the pull-out mechanism 101.

[0026] More specifically, the drawer mechanism 101 includes a position maintaining unit Ut1, a transport unit Ut2, and a pressing unit Ut3. The configuration of each unit will be specifically described below.

[0027] <Attitude holding unit> The attitude maintaining unit Ut1 is a unit that maintains the attitude of a portion of the strip sheet Q that is pulled out from the roll Qr. Specifically, the attitude maintaining unit Ut1 includes an attitude maintaining section 11 that maintains the attitude of the leading region Rft of the strip sheet Q, and a first nip section 12A and a second nip section 12B that nip the strip sheet Q at two locations upstream of the portion of the strip sheet Q that is maintained by the attitude maintaining section 11.

[0028] The first nip portion 12A is composed of a receiving roller 121 that contacts the lower surface of the strip sheet Q, and a nip plate 122 that presses the strip sheet Q against the receiving roller 121 (see FIG. 4A). Specifically, the nip plate 122 is biased by a biasing member (such as a spring, not shown) so as to nip the strip sheet Q with an appropriate pressure. Here, the appropriate pressure is a pressure that can suppress slackness and twisting of the strip sheet Q without preventing the strip sheet Q from being pulled out.

[0029] More specifically, the first nip portion 12A is configured to nip the strip sheet Q over a wide range in the width direction dw with the nip plate 122 so as to suppress slack or twisting of the strip sheet Q as much as possible at the first upstream location of the two locations where the strip sheet Q is nipped. Note that the nip plate 122 may be provided with a cushioning material interposed between the strip sheet Q and the nip plate 122 when the strip sheet Q is nipped to prevent the strip sheet Q from being damaged.

[0030] The second nip section 12B is disposed downstream of the first nip section 12A, and is composed of a flat base 123 that comes into surface contact with the underside of the strip sheet Q, and a nip roller 124 that presses the strip sheet Q against the flat base 123 (see FIGS. 3A and 4A). Specifically, the nip roller 124 is biased by a biasing member (such as a spring, not shown) so as to nip the strip sheet Q with an appropriate pressure. Here, the appropriate pressure is a pressure that can suppress slack or twisting of the strip sheet Q without preventing the strip sheet Q from being pulled out.

[0031] More specifically, the nip roller 124 is composed of a plurality of disks 124X arranged coaxially so as to be able to nip the strip-shaped sheet Q at a plurality of points in the width direction dw. The disks 124X are biased toward the flat base 123 by a biasing member (such as a spring, not shown).

[0032] The position maintaining unit 11 has a holding surface 11a that comes into surface contact with the lower surface of the leading region Rft of the strip-shaped sheet Q in order to maintain the horizontal position of the leading region Rft of the strip-shaped sheet Q. The position maintaining unit 11 is also configured to be movable forward and backward in the pull-out direction dx of the strip-shaped sheet Q. Specifically, the position maintaining unit 11 can move between an advanced position PxA (see FIG. 4A) where most of the position maintaining unit 11 is exposed downstream from the flat base 123, and a retracted position PxB (see FIG. 4A) where most of the position maintaining unit 11 is slid under the flat base 123, by moving downstream. Furthermore, the position maintaining unit 11 is urged in the same direction as the pull-out direction dx (from the retracted position PxB to the advanced position PxA) by an urging member (such as a spring, not shown).

[0033] <Transport unit> The transport unit Ut2 is a unit that supplies the sheet piece Qs formed by cutting the strip sheet Q (separating the leading region Rft) by the cutting mechanism 102 described later to the target object G. In this embodiment, the transport unit Ut2 is a unit that sends the sheet piece Qs to the side peripheral surface of the target object G that is being rotated by the rotation unit UtX. Moreover, in this embodiment, the transport unit Ut2 is also used to pull out the strip sheet Q. Specifically, the transport unit Ut2 includes a transport section 21 that transports the sheet piece Qs in a predetermined direction dy, and a drive section 22 that reciprocates the transport section 21 in a pull-out direction dx. Here, the predetermined direction dy is a direction perpendicular to the pull-out direction dx in a horizontal plane (the width direction dw of the strip sheet Q (see FIG. 2)).

[0034] The conveying section 21 includes a driving roller 211, a driven roller 212, and a conveying belt 213 (endless belt) stretched around these rollers, and converts the rotational motion of the driving roller 211 into the circulating motion of the conveying belt 213. The upper surface of the outer circumferential surface of the conveying belt 213, which moves in a predetermined direction dy by the circulating motion, is used as a conveying surface St for conveying the sheet piece Qs. In other words, the sheet piece Qs is placed horizontally on the conveying surface St with the adhesive application surface (adhesive surface) facing upward. In this embodiment, the conveying section 21 further includes a holding table 214 that holds the conveying belt 213 from the back surface (inner circumferential surface) so that the conveying surface St is a horizontal plane.

[0035] The driving unit 22 is a part that enables the conveying unit 21 to move from the first position P1 to the second position P2 and return to the first position P1 again (see FIG. 4A). Here, the first position P1 is a reference position of the conveying unit 21 when conveying the sheet piece Qs toward the target object G (see FIG. 6G). The second position P2 is a position of the conveying unit 21 that can overlap the leading region Rft of the strip-shaped sheet Q (see FIG. 6B). In this embodiment, the second position P2 is a position of the conveying unit 21 that can overlap the conveying surface St with the leading region Rft that has become the new leading region after cutting by the cutting mechanism 102, which will be described later. Hereinafter, the region of the conveying surface St that will overlap with the leading region Rft at the second position P2 will be referred to as the "specific region Stp" (see FIG. 4A).

[0036] More specifically, the driving unit 22 is composed of a guide rail 221 extending in the pull-out direction dx and a slide table 222 that moves along the guide rail 221. The transport unit 21 is installed on the slide table 222. The movement of the slide table 222 is realized by, for example, converting the rotational motion of a servo motor (not shown) into the translational motion of the slide table 222 through a ball screw (not shown). The driving unit 22 controls the movement of the slide table 222 by a control device Dt described later (for example, by controlling the movement of the slide table 222 through the control of a servo motor (not shown)), thereby causing the transport unit 21 to move back and forth between the first position P1 and the second position P2, and can further stop the transport unit 21 midway (specifically, at a third position P3 described later).

[0037] <Press unit> The pressing unit Ut3 is a unit that cooperates with the transport unit Ut2 to enable the strip sheet Q to be pulled out. The pressing unit Ut3 is installed on the slide table 222 together with the transport unit 21. In other words, the pressing unit Ut3 is installed on the transport unit 21 via the slide table 222. Therefore, the pressing unit Ut3 moves together with the transport unit 21 as the transport unit 21 moves in the pull-out direction dx.

[0038] Specifically, the pressing unit Ut3 includes a first pressing portion 31A, a driving portion 32, and a support portion 33 that supports these (see Figs. 3B and 4A). Fig. 3B is a perspective view showing the main portion (excluding the support portion 33) of the pressing unit Ut3.

[0039] The first pressing unit 31A includes a first contact portion 311A ​​that contacts the leading region Rft of the strip sheet Q when pressing the leading region Rft, and is configured to be able to move the first contact portion 311A ​​up and down between a separated position (see FIG. 4A) where the first contact portion 311A ​​is separated upward from a specific region Stp of the conveying surface St and a proximity position (see FIG. 6C) where the first contact portion 311A ​​is close to the specific region Stp in relation to the conveying surface St. Here, the proximity position where the first contact portion 311A ​​is close to the specific region Stp means a position where the first contact portion 311A ​​contacts the leading region Rft and presses the leading region Rft from above when the first contact portion 311A ​​is lowered with the leading region Rft placed on the specific region Stp (see FIG. 6C).

[0040] More specifically, the first contact portion 311A ​​is a plate extending in the predetermined direction dy and arranged to come into surface contact with the leading region Rft at a nearby position. The plate may have a part or all of its contact surface made of a cushioning material so as to reduce the impact when it comes into surface contact with the leading region Rft. The first contact portion 311A ​​may be a bar extending in the predetermined direction dy (transport direction) and coming into contact (including line contact) with the leading region Rft at a nearby position, instead of a plate. The first pressing portion 31A further includes two arms 312A and two weights 313 in addition to the first contact portion 311A. The two arms 312A have a pivot 314 pivoted to the support portion 33 so as to be able to rotate like a seesaw in a plane perpendicular to the predetermined direction dy (see FIG. 3B and FIG. 4A). The two arms 312A are disposed at different positions in the predetermined direction dy, pivoted at the same height, and have one end connected to both ends of the first contact portion 311A. The two weights 313 are attached to the other ends of the two arms 312A, respectively, so as to bias the two arms 312A about the pivots 314 in a direction that moves the first contact portion 311A ​​from the close position to the separate position.

[0041] The driving unit 32 is, for example, a part constituted by a solenoid, and enables the two arms 312A to rotate in opposite directions (directions in which the first contact portion 311A ​​moves from the separated position toward the close position; see FIG. 6C) against the biasing force of the weight 313. Specifically, two driving units 32 are provided, one for each of the two arms 312A. Each driving unit 32 includes a movable portion 321 that can be moved up and down, and the lower end of the movable portion 321 is connected to a position closer to the weight 313 than the pivot 314 of the corresponding arm 312A.

[0042] As a result, by generating a driving force in the two driving units 32 that moves the movable unit 321 upward (see FIG. 6C), the two arms 312A can be rotated in opposite directions against the biasing force of the weight 313, and as a result, the first contact unit 311A ​​can be moved to the close position. On the other hand, by stopping the generation of the driving force in the two driving units 32 (see FIG. 6G), the two arms 312A can be rotated in the forward direction by the biasing force of the weight 313, and as a result, the first contact unit 311A ​​can be moved to the separated position.

[0043] According to such a pressing unit Ut3, when the conveying section 21 overlaps with the leading region Rft of the strip-shaped sheet Q at the second position P2 (see FIG. 6B), the leading region Rft is clamped by being pressed toward the conveying section 21 by the first pressing section 31A (see FIG. 6C), and this state can be maintained while the conveying section 21 moves from the second position P2 to the first position P1 (see FIG. 6D). After that, the pressing can be released after the conveying section 21 reaches the first position P1 (see FIG. 6G). Note that the driving section 32 is not limited to a solenoid, and various actuators can be used as long as they can rotate the two arms 312A against the biasing force of the weight 313.

[0044] In this embodiment, the pressing unit Ut3 further includes a second pressing portion 31B.

[0045] The second pressing portion 31B is configured to be able to, when the first pressing portion 31A presses the leading region Rft of the strip sheet Q overlapping the conveying portion 21 (see FIG. 6C), press the next region Rf of the leading region Rft toward the attitude maintaining portion 11 in parallel therewith. Specifically, the second pressing portion 31B includes a second contact portion 311B disposed at a position upstream of the first contact portion 311A, and is configured to be able to move the second contact portion 311B up and down in conjunction with the up and down movement of the first contact portion 311A.

[0046] More specifically, the second contact portion 311B is a bar extending in the same direction (predetermined direction dy) as the first contact portion 311A ​​and arranged to contact the next region Rf at a nearby position. The bar may have a part or all of its contact surface made of a cushioning material so as to reduce the impact when it contacts the strip-shaped sheet Q (specifically, the region Rf next to the leading region Rft). Instead of a bar, the second contact portion 311B may be a plate extending in the same direction (predetermined direction dy) as the first contact portion 311A ​​and arranged to contact the next region Rf at a nearby position. The second pressing portion 31B further includes two arms 312B in addition to the second contact portion 311B, and both ends of the second contact portion 311B are connected to both ends of the first pressing portion 31A via the two arms 312B. By such a connection, the second contact portion 311B is fixed to the first contact portion 311A. The second contact portion 311B is fixed to the first contact portion 311A ​​so that the second contact portion 311B can press the next region Rf of the leading region Rft in parallel (for example, simultaneously) with the first contact portion 311A ​​when the first contact portion 311A ​​presses the leading region Rft. In this embodiment, the second contact portion 311B is fixed to be at the same height as the first contact portion 311A ​​when the first contact portion 311A ​​is disposed in the adjacent position.

[0047] According to the pressing unit Ut3, the first pressing section 31A and the second pressing section 31B can press the strip sheet Q at both the downstream and upstream positions of the intended cutting line (such as the perforation Pm) (see FIG. 6C). This makes it possible to reliably prevent the strip sheet Q from bending or twisting when the strip sheet Q is cut by the cutting mechanism 102 described below.

[0048] [1-1-2] Cutting mechanism The cutting mechanism 102 is a mechanism that cuts the strip sheet Q to separate the leading region Rft from the strip sheet Q. Specifically, the cutting mechanism 102 includes a cutting blade 41 used to cut the strip sheet Q, and a drive unit 42 that moves the cutting blade 41 up and down (see FIGS. 3A and 4A). The cutting mechanism 102 is also installed on the slide table 222 together with the conveying unit 21. In other words, the cutting mechanism 102 is installed on the conveying unit 21 via the slide table 222. Therefore, the cutting mechanism 102 moves together with the conveying unit 21 as the conveying unit 21 moves in the pull-out direction dx.

[0049] More specifically, the cutting mechanism 102 is installed so that the blade length direction of the cutting blade 41 coincides with the width direction dw (which is the same as the predetermined direction dy in this embodiment) of the strip-shaped sheet Q (see Figs. 4A and 4B). Fig. 4B is a conceptual diagram showing the cutting mechanism 102 as viewed from the opposite direction to the pull-out direction dx.

[0050] The cutting mechanism 102 is configured to cut the strip sheet Q from below by moving the cutting blade 41 upward. As a result, the strip sheet Q is cut from the back surface opposite the adhesive surface. Therefore, the adhesive applied to the adhesive surface is less likely to adhere to the cutting edge of the cutting blade 41, and as a result, the cutting edge of the cutting blade 41 is less likely to be soiled by the adhesive. Note that in cases where the adhesive is less likely to adhere to the cutting edge or where adhesion of the adhesive to the cutting edge is not a problem, the cutting mechanism 102 may be appropriately modified to one configured to cut the strip sheet Q from above by moving the cutting blade 41 downward.

[0051] Furthermore, the cutting blade 41 is disposed on the second position P2 side (upstream in the pull-out direction dx) with respect to the conveying section 21 so as to be under the strip sheet Q when the leading edge region Rft of the strip sheet Q overlaps the conveying surface St.

[0052] In this embodiment, the cutting blade 41 has a W-shaped cutting edge (see FIG. 4B). Therefore, when cutting the strip sheet Q, cutting can be started from three locations, namely, both ends and the center of the strip sheet Q in the width direction dw. The cutting blade 41 is not limited to such a cutting edge, and can be changed to a cutting edge of a different shape (including a cutting edge extending straight horizontally and a cutting edge extending straight at an angle) as appropriate according to changes in the cutting start position and the material of the strip sheet Q.

[0053] [1-1-3] Drawer mechanism (continuation of explanation) <Setting the second and third positions for the transport unit> In this embodiment, the second position P2 of the conveying unit 21 is set so that when the conveying unit 21 overlaps the leading region Rft of the strip sheet Q at the second position P2, the cutting edge of the cutting blade 41 faces the planned cutting line (perforation Pm in this embodiment) between the leading region Rft and the next region Rf (see FIG. 6C). By setting the second position P2 in this way, it is possible to simultaneously overlap the conveying unit 21 with the leading region Rft so that the leading region Rft can be clamped, and to make the cutting edge of the cutting blade 41 face the planned cutting line so that cutting can be performed at any time, simply by stopping the conveying unit 21 at the second position P2.

[0054] Furthermore, the position of the conveying section 21 when cutting the strip sheet Q by the cutting mechanism 102 is set as a third position P3 between the first position P1 and the second position P2 (see FIG. 6E). More specifically, the third position P3 is set so that the distance Lx (see FIG. 4A) between the third position P3 and the second position P2 in the pull-out direction dx matches the length of one of the regions Rf that will become the sheet pieces Qs. The conveying unit Ut2 is controlled by a control device Dt, which will be described later, to stop the conveying section 21 at the third position P3 (see FIG. 6D).

[0055] <Advance and retreat movement of the posture holding unit according to the movement of the transport unit> As described above, the posture maintaining section 11 can move between the advanced position PxA and the retracted position PxB (see FIG. 4A), and is biased in the same direction as the pull-out direction dx (from the retracted position PxB to the advanced position PxA) by a biasing member (such as a spring, not shown). In other words, the posture maintaining section 11 is biased toward the transport section 21. Therefore, by pushing the posture maintaining section 11 in the direction opposite to the pull-out direction dx against the biasing force of the biasing member, the posture maintaining section 11 can be retracted toward the retracted position PxB. Also, by stopping the pushing after retracting the posture maintaining section 11, the posture maintaining section 11 can be advanced toward the advanced position PxA by the action of the biasing force.

[0056] In this embodiment, such forward and backward movement of the posture maintaining unit 11 is realized by utilizing the movement of the transport unit 21. Specifically, the posture maintaining unit 11 and the transport unit 21 are disposed so that the transport unit 21 can come into contact with the posture maintaining unit 11 midway when the transport unit 21 moves from the first position P1 toward the second position P2.

[0057] According to such a configuration of the attitude maintaining section 11 and the transport section 21, it becomes possible to advance and retreat the attitude maintaining section 11 in accordance with the movement of the transport section 21 between the first position P1 and the second position P2.

[0058] Specifically, when the conveying unit 21 moves toward the second position P2, the posture maintaining unit 11 is pushed by the conveying unit 21 and moves toward the retreated position PxB (in the opposite direction to the pull-out direction dx) against the biasing force. Also, when the conveying unit 21 moves toward the first position P1, the posture maintaining unit 11 moves toward the advanced position PxA (in the same direction as the pull-out direction dx) following the conveying unit 21 due to the action of the biasing force. This allows the advancement and retreat of the posture maintaining unit 11 in response to the movement of the conveying unit 21 to be achieved with a simple configuration that does not use electric components such as a motor.

[0059] In this embodiment, the third position P3 is set to be the position of the conveying unit 21 when it is in contact with the attitude maintaining unit 11 (see Figs. 6D and 6E). Therefore, when the conveying unit 21 moves at least between the second position P2 and the third position P3, the attitude maintaining unit 11 and the conveying unit 21 are always maintained in contact with each other. On the other hand, the first position P1 is set to be the position of the conveying unit 21 when it moves away from the attitude maintaining unit 11 at the advance position PxA and further downstream (see Fig. 6G).

[0060] In addition, even at the third position P3 where the position maintaining unit 11 and the conveying unit 21 are in contact with each other, the position maintaining unit 11 and the conveying unit 21 are configured as follows so that the strip-shaped sheet Q can be cut from below. Specifically, the position maintaining unit 11 and the conveying unit 21 are configured to abut on one or both sides of the cutting blade 41 via abutting members 215 (see FIGS. 4A and 4B) having a thickness equivalent to the width of the gap Vg so that the gap Vg (see FIG. 3A) for passing the cutting blade 41 can be secured even when the position maintaining unit 11 and the conveying unit 21 are in contact with each other. In this embodiment, the abutting members 215 are fixed to the holding base 214 of the conveying unit 21 at positions on both sides of the cutting blade 41 (see FIG. 4B). With this abutting structure, the gap Vg for passing the cutting blade 41 can be formed with a simple configuration in which the position maintaining unit 11 is in contact with the conveying unit 21. In other words, control for forming the gap Vg is not required.

[0061] <Positional relationship between the conveying surface and the holding surface> In this embodiment, the holding surface 11a of the posture maintaining unit 11 and the transport surface St of the transport unit 21 are aligned on the same plane (see Figs. 3A and 4A). Specifically, the posture maintaining unit 11 and the transport unit 21 are configured such that the holding surface 11a and the transport surface St are aligned on the same plane, and the aligned state is maintained even when the posture maintaining unit 11 advances and retreats as the transport unit 21 moves.

[0062] According to such a positional relationship, the conveying unit 21 is brought into contact with the posture maintaining unit 11, so that the holding surface 11a and the conveying surface St form a single plane. As a result, when the conveying unit 21 is moved toward the second position P2, the leading region Rft of the strip sheet Q can be moved relatively in the pull-out direction dx within the single plane. In other words, the conveying unit 21 (conveying surface St) can be smoothly slid under the leading region Rft whose horizontal posture is maintained. Therefore, when the conveying unit 21 is moved to the second position P2, the conveying unit 21 can be smoothly shifted from a state where it is not overlapped with the leading region Rft to a state where it is overlapped.

[0063] According to the above-described sheet piece forming device Ds, by moving the conveying unit 21 to the second position P2 in order to pull out the strip sheet Q, the conveying unit 21 can be overlapped with the leading region Rft of the strip sheet Q, and as a result, a state in which the leading region Rft is placed on the conveying unit 21 can be created. Then, after the leading region Rft is sandwiched between the conveying unit 21 and the first pressing unit 31A at the second position P2, the conveying unit 21 is moved toward the first position P1 in this state, so that the strip sheet Q can be pulled out by the movement amount of the conveying unit 21. This makes it possible to pull out the strip sheet Q only by the pulling force of the pull-out mechanism 101. In other words, it is not necessary to provide a motor for unwinding the strip sheet Q from the upstream side.

[0064] In this embodiment, as described above, the third position P3 is set so that the distance Lx between the third position P3 and the second position P2 in the pull-out direction dx coincides with the length of one region Rf that will become the sheet piece Qs. Therefore, while the conveying section 21 moves from the second position P2 to the third position P3 (i.e., from the time the strip sheet Q is clamped until the strip sheet Q is cut), one region Rf that will become the sheet piece Qs is pulled out. As a result, the region Rf next to the leading region Rft (the region Rf that will become the new leading region Rft by cutting the strip sheet Q) is pulled out to the second position P2. In this way, by pulling out the next region Rf to the second position P2, preparation for the formation of the next sheet piece Qs can be performed. Therefore, it is possible to realize the continuous formation of the sheet piece Qs by repeating the same operation.

[0065] Furthermore, as described above, when the conveying unit 21 reaches the second position P2, a state in which the leading region Rft is placed on the conveying unit 21 is created, so that thereafter, the sheet piece Qs already placed on the conveying unit 21 can be formed simply by cutting the strip-shaped sheet Q with the cutting mechanism 102. Therefore, after cutting, the supply of the sheet piece Qs to the target object G can be started simply by moving the conveying unit 21 to the first position P1 and starting conveyance.

[0066] Therefore, according to the above-mentioned sheet piece forming device Ds, the operations from the formation of the sheet piece Qs to the conveyance (discharge) are realized with a simple configuration. As a result, it is possible to realize the miniaturization of the sheet piece forming device Ds and to prevent the sheet piece forming device Ds from becoming large.

[0067] Furthermore, in this embodiment, the sheet piece Qs is maintained in a pressed (clamped) state until the conveying unit 21 reaches the first position P1, which prevents the sheet piece Qs from falling off during the movement of the conveying unit 21. Then, when the conveying unit 21 reaches the first position P1, the pressing (clamping) of the sheet piece Qs is released, which makes it possible to start conveying the sheet piece Qs toward the rotation unit UtX.

[0068] [1-2] Rotating unit The rotation unit UtX is a unit that can rotate the object G around its central axis without changing its position while keeping the central axis horizontal (see FIG. 1A). Specifically, the rotation unit UtX includes two rotating rollers 51 that support the object G from below, and the two rotating rollers 51 are arranged so that their rotation axes are parallel and horizontal to each other. The rotation unit UtX may be appropriately modified to support the object G with three or more rotating rollers 51.

[0069] The rotation unit UtX is positioned so that when the conveying section 21 moves to the first position P1 and conveys the sheet piece Qs (see Figure 6G), the sheet piece Qs (sheet piece Qs placed horizontally on the conveying surface St) is sent between the object G and the two rotating rollers 51 that support the object G from below (see Figures 7(A) to (C)).

[0070] The placement (setting) of the objects G on the two rotating rollers 51 may be performed manually one by one, or may be automated by a separate device (not shown).

[0071] [1-3] Control device The control device Dt includes a memory unit 61 and a control unit 62 (see FIG. 1B). The memory unit 61 is a part that stores information necessary for controlling the bonding device (such as parameters necessary for controlling the sheet piece forming device Ds and the rotation unit UtX), and is composed of a storage device such as a ROM or a RAM. The control unit 62 is a part that executes control of the bonding device, and is composed of a processing device such as a CPU. Below, the control process executed by the control device Dt in the bonding device will be specifically described. The control device Dt may be regarded as one of the components of the sheet piece forming device Ds.

[0072] Fig. 5 is a flow chart showing the control process executed by the control device Dt. Figs. 6A to 6G are perspective views sequentially showing the operation (forming operation) of the sheet piece forming device Ds caused by the control process, and Figs. 7(A) to 7(C) are conceptual diagrams showing the pasting operation performed by the pasting device. Fig. 5 shows the flow from the point in time when the conveyance of the sheet piece Qs formed by the cutting of the strip-shaped sheet Q is completed (the conveyance section 21 is at the first position P1; see Fig. 4A).

[0073] The control device Dt first controls the transport unit Ut2 to cause the transport unit Ut2 to start moving the transport section 21 from the first position P1 to the second position P2 (step S101, see FIG. 6A). As a result, the transport section 21 comes into contact with the position holding section 11 on the way to the second position P2, and then moves toward the second position P2 while pushing the position holding section 11 against the biasing force applied to the position holding section 11 (see FIG. 6A). At this time, the position holding section 11 and the transport section 21 maintain a state in which they are in contact with each other, and the holding surface 11a and the transport surface St maintain a state in which they are aligned on the same plane. Therefore, the transport section 21 can smoothly transition from a state in which it does not overlap with the leading region Rft of the strip-shaped sheet Q to a state in which it overlaps with the leading region Rft in the process of moving to the second position P2.

[0074] After step S101, the control device Dt judges whether the conveying unit 21 has reached the second position P2 (step S102). As an example, in each region Rf of the strip-shaped sheet Q, a detection mark is formed at the same position within that region Rf, and the detection mark is detected at a specific position in the pull-out direction dx. Then, the control device Dt can judge whether the conveying unit 21 has reached the second position P2 based on the detection results for those detection marks. Specifically, in the process in which the conveying unit 21 moves toward the second position P2, the control device Dt can judge that the conveying unit 21 has "reached (Yes)" the second position P2 when a detection result for a first detection mark (a detection mark formed in the leading region Rft) is obtained and then a detection result for a second detection mark (a detection mark formed in the next region Rf) is obtained. According to this judgment, when the conveying section 21 moves one area Rf that becomes the sheet piece Qs after the first detection mark is detected, it is judged that the conveying section 21 has "reached (Yes)" the second position P2.

[0075] The control device Dt repeats step S102 until it can determine that the target position has been reached (Yes) in step S102. When the control device Dt determines that the target position has been reached (Yes) in step S102, it controls the transport unit Ut2 to have the transport unit Ut2 immediately stop the transport section 21 (step S103, see FIG. 6B). This causes the transport section 21 to stop at the second position P2, and creates a state in which the leading region Rft of the strip sheet Q overlaps the transport section 21 (transport surface St) at the second position P2. In addition, a state is created in which the cutting edge of the cutting blade 41 faces the planned cutting line (perforation Pm in this embodiment), and cutting can be performed at any time.

[0076] After step S103, the control device Dt controls the pressing unit Ut3 to cause the pressing unit Ut3 to press the leading region Rft (to the conveying unit 21 (conveying surface St)) by the first pressing unit 31A (step S104, see FIG. 6C). As a result, the leading region Rft is sandwiched between the conveying unit 21 and the first pressing unit 31A.

[0077] In this embodiment, by executing step S103, in parallel with the pressing of the leading region Rft by the first pressing unit 31A, the region Rf next to the leading region Rft is pressed by the second pressing unit 31B toward the attitude maintaining unit 11. As a result, the band-shaped sheet Q is pressed at positions both downstream and upstream of the intended cutting line (such as the perforation Pm).

[0078] After step S104, the control device Dt controls the conveying unit Ut2 to start moving the conveying section 21 from the second position P2 to the third position P3 (step S105) while causing the pressing unit Ut3 to maintain the pressing of the leading region Rft by the first pressing section 31A, thereby starting the drawing of the strip-shaped sheet Q in the drawing direction dx.

[0079] After step S105, the control device Dt determines whether the conveying section 21 has reached the third position P3 (step S106). As an example, the control device Dt can determine whether the conveying section 21 has reached the third position P3 by determining whether the conveying unit Ut2 has caused the conveying section 21 to move a predetermined distance (a preset distance) corresponding to one area Rf that becomes the sheet piece Qs.

[0080] The control device Dt repeats step S106 until it determines "reached (Yes)" in step S106. When it determines "reached (Yes)" in step S106, the control device Dt controls the transport unit Ut2 to cause the transport unit Ut2 to immediately stop the transport section 21 (step S107; see FIG. 6D). This causes the transport section 21 to stop at the third position P3.

[0081] After step S107, the control device Dt controls the cutting mechanism 102 to cut the strip sheet Q with the cutting blade 41 (step S108, see FIG. 6E). As a result, the leading region Rft is cut off from the strip sheet Q, and as a result, a sheet piece Qs is formed from the leading region Rft, and the region Rf next to the leading region Rft becomes a new leading region Rft. At this time, the sheet piece Qs is formed in a state where it is already placed horizontally on the conveying surface St of the conveying unit 21. As a result, a state where the sheet piece Qs is placed at a position where it can start being supplied to the target object G can be created by simply moving the conveying unit 21 from the third position P3 to the first position P1 (see FIG. 6F). In addition, the new leading region Rft is formed in a state where it is placed horizontally on the holding surface 11a of the position holding unit 11. In other words, the leading region Rft of the strip sheet Q that has become the new leading region as a result of cutting by the cutting mechanism 102 is held by the position holding unit 11. This prepares for the formation of the next sheet piece Qs.

[0082] After step S108, the control device Dt controls the transport unit Ut2 to move the transport section 21 from the third position P3 to the first position P1 (step S109, see FIG. 6F). This creates a state in which the sheet piece Qs can be transported toward the rotation unit UtX. In this embodiment, the first position P1 is set to be the position of the transport section 21 when it moves away from the attitude maintaining section 11 at the advance position PxA and further downstream. Therefore, in the process of moving from the third position P3 to the first position P1, the transport section 21 temporarily moves away from the attitude maintaining section 11 after the attitude maintaining section 11 advances to the advance position PxA.

[0083] After step S109, the control device Dt controls the pressing unit Ut3 to cause the pressing unit Ut3 to release the pressing of the sheet piece Qs against the conveying unit 21 (conveying surface St) by the first pressing unit 31A (step S110, see FIG. 6G). This releases the sheet piece Qs from being pinched between the conveying unit 21 and the first pressing unit 31A, and as a result, a state is created in which the supply of the sheet piece Qs to the target object G can be started.

[0084] After step S110, the control device Dt controls the rotation unit UtX to rotate the object G on the rotation roller 51, and controls the transport unit Ut2 to transport the sheet piece Qs toward the rotation unit UtX (step S111; see Figs. 7(A) to 7(C)). At this time, the rotation speed of the rotation roller 51 or the orbital speed of the transport belt 213 is adjusted so that the speed of the side peripheral surface around the central axis of the object G matches the transport speed of the sheet piece Qs.

[0085] According to step S111, while rotating the horizontally placed object G, it is possible to feed the horizontally placed sheet piece Qs to the side peripheral surface of the object G. Specifically, while rotating the horizontally placed object G in the same position, it is possible to feed the horizontally placed sheet piece Qs between the object G and the two rotating rollers 51 supporting it from below. This makes it possible to continue to feed the sheet piece Qs along the side peripheral surface of the rotating object G while sandwiching it between the object G and the rotating rollers 51 by utilizing the gravity of the object G itself (see FIG. 7(B)). In other words, it is possible to make the object G itself function as a nip roller for attaching the sheet piece Qs to the object G.

[0086] Then, by feeding the horizontally placed sheet piece Qs to the side peripheral surface of the object G, it becomes possible to attach the sheet piece Qs to the side peripheral surface of the object G while it is in the horizontally placed state (see FIG. 7(C)). In other words, when attaching the sheet piece Qs to the object G, it becomes possible to supply the sheet piece Qs to the object G in a state in which the sheet piece Qs is merely placed on the conveyor belt 213 (in other words, without requiring a complex mechanism such as a suction belt). Therefore, according to the above-mentioned attaching device, the sheet piece Qs can be attached to the object G with a simple configuration. As a result, it becomes possible to realize a compact attaching device and to prevent the attaching device from becoming large.

[0087] [2] Variations [2-1] First modified example 8 is a side view showing the main components of the sheet piece forming device Ds according to the first modified example. As shown in this figure, the sheet piece forming device Ds may be modified as appropriate so that the pressing unit Ut3 does not include the second pressing portion 31B.

[0088] [2-2] Second variant In the above-mentioned sheet piece forming device Ds, the third position P3 (the position of the conveying unit 21 when cutting the strip sheet Q by the cutting mechanism 102) may be set to the same position as the first position P1 (the reference position of the conveying unit 21 when conveying the sheet piece Qs toward the target object G).

[0089] According to the second modification, after the strip sheet Q is cut, it is possible to start conveying the sheet piece Qs without moving the conveying section 21.

[0090] [2-3] Third variant The above-mentioned bonding device includes at least a rotation unit UtX and a transport unit Ut2, and may be appropriately modified by these units to bond a sheet piece Qs formed by another device to an object G. With this configuration, it becomes possible to set the sheet piece Qs on the transport section 21 moved to the second position P2 or the third position P3, move it to the first position P1, and then start transporting it toward the rotation unit UtX.

[0091] As another example, the bonding device may be modified to include a rotation unit UtX, a transport unit Ut2, and a pressing unit Ut3. With this configuration, the sheet piece Qs set on the transport section 21 at the second position P2 or the third position P3 is pressed by the pressing unit Ut3, thereby preventing the sheet piece Qs from falling off during the movement of the transport section 21. Then, when the transport section 21 reaches the first position P1, the pressing of the sheet piece Qs by the pressing unit Ut3 is released, making it possible to start transporting the sheet piece Qs toward the rotation unit UtX.

[0092] [2-4] Fourth variant 9(A) to 9(C) are conceptual diagrams showing a bonding device and its bonding operation according to a fourth modified example. As shown in these figures, the rotation unit UtX may be appropriately modified to support the target object G with two rotating rollers 52 from the left and right (front and back in the predetermined direction dy (transport direction)) and with one rotating roller 51 from below.

[0093] According to the fourth modified example, while rotating the horizontally placed object G in the same position, the horizontally placed sheet piece Qs can be fed between the object G and the single rotating roller 51 supporting it from below. This makes it possible to sandwich the sheet piece Qs between the object G and the rotating roller 51 by utilizing the gravity of the object G itself, and to continue to feed the sheet piece Qs along the side circumferential surface of the rotating object G (see FIG. 9(B)). In other words, even in the fourth modified example, the object G itself can function as a nip roller for attaching the sheet piece Qs to the object G.

[0094] Also in the fourth modified example, the sheet piece Qs can be fed horizontally to the side peripheral surface of the object G, so that the sheet piece Qs can be attached to the side peripheral surface of the object G while being placed horizontally (see FIG. 9(C)). Thus, similar to the above embodiment, the sheet piece Qs can be attached to the object G with a simple configuration.

[0095] [2-5] Fifth variant 10(A) to 10(C) are conceptual diagrams showing a bonding device and its bonding operation according to a fifth modified example. As shown in these figures, the rotation unit UtX may be configured to be able to rotate the target object G about its central axis while the target object G is placed on the conveying surface St with its central axis kept horizontal.

[0096] 10(A) to 10(C), the rotation unit UtX includes two rotation rollers 53 that support the object G from the left and right (front and back in the predetermined direction dy (transport direction)) with the object G laid horizontally on the transport surface St. As another example, the rotation unit UtX may rotatably support both ends of the object G in the central axis direction (for example, the cap and bottom in the case of a plastic bottle) with the side peripheral surface of the object G in contact with the transport surface St (not shown).

[0097] According to the fifth modified example, it becomes possible to continuously feed the horizontally placed sheet piece Qs along the side circumferential surface of the rotating object G while sandwiching the horizontally placed sheet piece Qs between the object G and the conveying surface St by utilizing the gravity of the horizontally placed object G itself (see FIG. 10(B)). In other words, even in the fifth modified example, it becomes possible to make the object G itself function as a nip roller for attaching the sheet piece Qs to the object G.

[0098] Also in the fifth modified example, the sheet piece Qs can be fed horizontally to the side peripheral surface of the object G, so that the sheet piece Qs can be attached to the side peripheral surface of the object G while being placed horizontally (see FIG. 10(C)). Thus, similar to the above embodiment, the sheet piece Qs can be attached to the object G with a simple configuration.

[0099] [2-6] Other variations The above-described sheet piece forming device Ds can also be applied to forming sheet pieces Qs from a belt-shaped sheet Q having no perforations Pm on the intended cutting line by appropriately changing the sharpness of the cutting edge of the cutting blade 41.

[0100] The above-mentioned embodiments and the description of the modifications should be considered as illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims, not by the above-mentioned embodiments and modifications. Furthermore, the scope of the present invention is intended to include all modifications within the meaning and scope of the claims. [Explanation of symbols]

[0101] G. Object Q Strip Sheet 11 Posture holding part 11a Holding surface 12A First nip section 12B Second nip section 21 Conveyor 22 Drive unit 31A First pressing part 31B Second pressing part 32 Drive unit 33 Support part 41 Cutting blade 42 Drive unit 51, 52, 53 Rotating roller 61 Storage section 62 Control section Ds Sheet forming device Dt Control Device Lx distance P1 1st position P2 2nd position P3 3rd position Pm Perforation Qr Roll Qs Sheet piece Rf area St conveying surface Vg Gap dw Width direction dx withdrawal direction dy specified direction 101 Drawer mechanism 102 Cutting mechanism 121 Support roller 122 Nip plate 123 Flat table 124 Nip roller 124X Disc 211 Drive roller 212 Driven roller 213 Conveyor Belt 214 Holding stand 215 Contact member 221 Guide rail 222 Slide 311A 1st contact part 311B 2nd contact part 312A, 312B Arm 313 Weight 314 Axis 321 Moving parts PxA advance position PxB Retract position Rft start area Stp specific area Ut1 attitude control unit Ut2 Transport unit Ut3 Pressing unit UtX Rotating Unit

Claims

1. A bonding device that bonds a sheet piece to a side peripheral surface of a columnar or cylindrical object, a rotation unit capable of rotating the object around a central axis while keeping the central axis horizontal; a conveying unit that conveys the sheet piece, with the adhesive surface facing upward, to the side circumferential surface of the object being rotated by the rotating unit; The application device comprises:

2. the rotating unit is capable of rotating the object around the central axis without changing its position, and includes at least one rotating roller that supports the object from below; The application device according to claim 1 , wherein the transport unit feeds the sheet piece, placed with the adhesive surface facing upward, between the object and the rotating roller that supports the object from below.

3. 3. The bonding device according to claim 2, wherein the rotating unit includes at least two rotating rollers that support the object from below, and the at least two rotating rollers are arranged such that their rotation axes are parallel and horizontal to each other.

4. the conveying unit has a conveying surface for conveying a sheet piece, the rotation unit is capable of rotating the object around a central axis while the object is placed on the conveying surface with the central axis horizontal; The application device according to claim 1 , wherein the transport unit feeds the sheet piece, which is placed with the adhesive surface facing upward, between the object and the transport surface.

5. The application device of any one of claims 1 to 4, wherein the transport unit includes a transport section for transporting a sheet piece, and is configured to be able to move the transport section from a first position, which is a reference position when transporting the sheet piece placed there, to a second position different from the first position, and then return the transport section to the first position again.

6. a pressing unit that is capable of pressing the sheet piece or a portion of the strip-shaped sheet that will become the sheet piece toward the conveying section at the second position, maintaining that state while the conveying section is moving from the second position to the first position, and then releasing the state after the conveying section reaches the first position; The application device according to claim 5 , further comprising:

Images