Seal application device and seal application method

Abstract

To smoothly wind up a separate tape by effectively reducing a force applied to the separate tape.SOLUTION: A seal application device includes: a tape holding part that rotatably holds a tape with a seal, which is a belt-like separate tape with a hole-closing seal affixed at a predetermined interval in a rolled state; a seal peeling part in which the tape with the seal is fed toward a tip part, the hole closing seal is peeled off from the separate tape at the tip part, and only the peeled separate tape is folded back at the tip part; and a tape winding part that winds up the separate tape folded back at the tip part. The seal peeling part is provided with an outer guide part that guides the separate tape so as to spread the separate tape outward relative to the tip part.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a sticker affixing device and a sticker affixing method. [Background technology]

[0002] There is known a seal application device that includes a tape holding section that rotatably holds a roll of sealed tape, which is a strip of release tape with hole closing seals affixed at predetermined intervals to it, a seal peeling section that pays out the sealed tape in a certain direction while folding it back to peel the hole closing seals from the release tape, and a tape winding section that winds up only the release tape from which the hole closing seals have been peeled off, via a guide roller (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-055617 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the above-mentioned seal application device, there is a risk that excessive force will act on the release tape at the folded-back portion of the seal peeling section, causing the release tape to tear, and making it difficult to wind up the release tape smoothly.

[0005] The present disclosure has been made to solve such problems, and has as its main object to provide a seal application device and a seal application method that can effectively reduce the force applied to the release tape and smoothly wind up the release tape. [Means for solving the problem]

[0006] In order to achieve the above object, one aspect of the present disclosure is to a tape holding section that rotatably holds a tape with a seal, which is a strip of release tape and has hole closing seals attached at predetermined intervals, in a rolled state; a seal peeling section configured such that the tape with the seal is fed toward a tip portion, the hole closing seal is peeled off from the release tape at the tip portion, and only the peeled release tape is folded back at the tip portion; A tape winding section that winds up the release tape folded back at the tip portion; A seal attachment device comprising: The seal peeling portion is provided with an outer guide portion that guides the release tape so as to spread the release tape outward relative to the tip portion. Sticker attachment device It is. In this embodiment, The seal tape is fed from the tape holding portion to the tip of the seal peeling portion via a pair of guide rollers, The pair of guide rollers guide the seal-attached tape in a sandwiched state, The pair of guide rollers may be provided with an adjustment portion for adjusting the clamping pressure between the pair of guide rollers. In this embodiment, The outer guide portion may be configured as a semi-cylindrical member provided below the tip portion. In this embodiment, The tape winding unit may change a rotation speed of the tape winding unit in accordance with a core diameter of the release tape wound by the tape winding unit. In order to achieve the above object, one aspect of the present disclosure is to A step of unwinding the tape with the seal, which is a strip-shaped release tape with hole closing seals affixed at predetermined intervals, from a tape holding section that rotatably holds the tape with the seal wound in a roll toward a tip of a seal peeling section; the hole closing seal is peeled off from the release tape at the tip of the seal peeling portion, and only the peeled release tape is folded back at the tip; The folded release tape is guided by an outer guide portion of the seal peeling portion so as to be spread outward relative to the tip portion; The release tape guided by the outer guide portion of the seal peeling unit is wound up by a tape winding unit; Including, How to apply stickers may be also possible. Effect of the Invention

[0007] According to the present disclosure, it is possible to provide a seal application device and a seal application method that can effectively reduce the force applied to a release tape and smoothly wind up the release tape. [Brief description of the drawings]

[0008] [Figure 1] 1 is a diagram showing a schematic configuration of a sticker affixing device according to an embodiment of the present invention; [Diagram 2] FIG. 2 is an enlarged view of part A shown in FIG. 1, showing the seal peeling portion. [Diagram 3] 1 is a diagram showing a schematic configuration of a sticker affixing device according to an embodiment of the present invention; [Figure 4] 3 is a flowchart showing a flow of a sticker pasting method according to the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the present disclosure will be described through the present embodiment, but the invention according to the claims is not limited to the following embodiment. Also, not all of the configurations described in the embodiment are necessarily essential as means for solving the problem. For clarity of explanation, the following description and drawings have been omitted and simplified as appropriate.

[0010] The present embodiment will be described with reference to the drawings. Fig. 1 is a diagram showing a schematic configuration of a seal affixing device according to the present embodiment. The seal affixing device 1 according to the present embodiment includes a seal supply unit 3 that supplies a hole closing seal to a seal affixing unit 2, and a seal affixing unit 2 that affixes the hole closing seal supplied by the seal supply unit 3.

[0011] The sticker affixing unit 2 affixes a hole closing sticker to a through hole formed in, for example, a panel of a vehicle, to close the through hole. The sticker affixing device 1 is mounted on, for example, an arm robot.

[0012] As shown in FIG. 1, the seal supply unit 3 according to this embodiment includes a tape holding unit 31 that rotatably holds the sealed tape X wound in a roll, a seal peeling unit 32 that is configured so that the sealed tape X is unwound toward a tip end 321 and the hole sealing seal is peeled off from the release tape at the tip end 321, and a tape winding unit 33 that winds up the release tape from which the hole sealing seal has been peeled off.

[0013] Fig. 2 is an enlarged view of part A shown in Fig. 1, showing the seal peeling portion. The seal-attached tape X is a tape in which hole-closing seals X2 are attached at predetermined intervals to a strip-shaped release tape X1.

[0014] 1, the tape holding part 31 rotates around a rotation axis supported by a bearing or the like of the main body part 7. The tape holding part 31 may have a remaining amount sensor 311 that detects the remaining amount of the sealed tape X wound around the tape holding part 31. The remaining amount sensor 311 is, for example, a distance sensor that detects the radial thickness of the sealed tape X wound around the tape holding part 31. The remaining amount sensor 311 can detect the actual remaining amount of the sealed tape X, thereby preventing the seal from running out during operation.

[0015] The tape holding unit 31 rotates in response to the take-up of the release tape X1 by the tape take-up unit 33, and pays out the seal-attached tape X. The seal-attached tape X coming out of the tape holding unit 31 passes through a first guide roller 4, a pair of second guide rollers 5, and a third guide roller 6 in this order, and is sent out to a tip end 321 of the seal peeling unit 32.

[0016] The sealed tape X coming out of the tape holding part 31 first reaches and is guided by the outer circumferential surface of the first guide roller 4 which is rotatably provided on the main body 7 below the tape holding part 31. Next, the sealed tape X coming out of the first guide roller 4 is guided while being sandwiched between the outer circumferential surfaces of a pair of second guide rollers 5 which are rotatably provided on the main body 7 below the first guide roller 4. The second guide rollers 5 can apply a desired tension to the sealed tape X.

[0017] Here, the second guide roller in the conventional method was fixed, so that if there was variation in the thickness of the sticker-attached tape X due to manufacturing tolerances, the clamping pressure would change and the tension would also change, which could lead to a decrease in manufacturing quality.

[0018] In contrast to this, in this embodiment, the second guide roller 5 is provided with an adjustment unit 8 that adjusts the clamping pressure applied by the outer circumferential surfaces of the pair of second guide rollers 5. This adjustment unit 8 can adjust the clamping pressure applied by the pair of second guide rollers 5 in accordance with changes in the thickness of the sealed tape X due to production errors. This adjustment unit 8 makes it possible to maintain the above-mentioned clamping state constant, and also to maintain the tension constant.

[0019] For example, one of the second guide rollers 5 is configured as a fixed roller. The other second guide roller 5 is configured as a movable roller that can swing in a direction away from and toward the one second guide roller 5 with the sealed tape X sandwiched therebetween. The adjustment unit 8 may be configured as a hydraulic or pneumatic damper mechanism that presses the other second guide roller 5 against the one second guide roller 5 with a constant pressure.

[0020] The tape X with the seal coming out from the pair of second guide rollers 5 reaches and is guided by the outer circumferential surface of the third guide roller 6 that is rotatably provided on the main body 7 below and to the left of the second guide roller 5. The tape X with the seal coming out from the third guide roller 6 is unwound toward the tip 321 of the seal peeling section 32.

[0021] The seal peeling section 32 is configured such that the sealed tape X is fed toward the tip 321, the hole closing seal X2 is peeled off from the release tape X1 at the tip 321, and only the peeled release tape X1 is folded back at the tip 321. At the tip 321 of the seal peeling section 32, the hole closing seal X2 is peeled off from the release tape X1.

[0022] The seal application unit 2 peels the hole closing seal X2 from the release tape X1 at the tip 321 and applies it to the through hole. The seal application unit 2 includes an adsorption pad 21 that adsorbs the hole closing seal X2, an expansion mechanism 22 that expands and contracts in the vertical direction, and a movement mechanism 23 that moves the expansion mechanism 22.

[0023] The suction pad 21 is provided at the lower end of the extension mechanism 22. The suction pad 21 has a substantially conical rubber pad that adsorbs the hole closing seal X2. The suction pad 21 is configured such that the rubber pad adsorbs the hole closing seal X2 by negative pressure generated by a vacuum ejector or the like.

[0024] The telescopic mechanism 22 has a cylinder 221 and a piston 222 that telescopically extends relative to the cylinder 221. A suction pad 21 is provided at the tip of the piston 222. As shown in Fig. 3, the piston 222 may have a guide shaft 223 for guiding the telescopic movement of the piston 222 attached to a piston shaft 224. Furthermore, the piston shaft 224 may be supported by a bearing 225 such as an Oiles bushing.

[0025] The guide shaft 223 and the bearing 225 can suppress rattling of the piston 222 and the suction pad 21 at the tip thereof, and can improve the accuracy with which the hole closing seal X2 is attached by the suction pad 21.

[0026] As shown in FIG. 2, each hole closing seal X2 stops at the leading end 321 of the seal peeling portion 32 with a predetermined amount of its front side in the feed direction peeled off from the release tape X1 (seal adsorption position P).

[0027] For example, the drive motor of the tape winding unit 33 operates intermittently to intermittently pay out the roll of the sealed tape X held by the tape holding unit 31. Then, the drive motor of the tape winding unit 33 stops each hole closing seal X2 at the seal adsorption position P of the seal peeling unit 32 when a predetermined amount of the front side portion in the feed direction has been peeled off from the release tape X1.

[0028] At this seal suction position P, the extension mechanism 22 extends, thereby moving the suction pad 21 downward and bringing it closer to and into contact with the hole closing seal X2. This allows the suction pad 21 to adsorb the hole closing seal X2.

[0029] A sticker detection sensor 9 is provided near the tip 321 of the sticker peeling section 32. The sticker detection sensor 9 may be, for example, an optical sensor that detects reflected light from a colored portion (black and white portion) of the sticker-attached tape X. The drive motor of the tape winding section 33 may stop the hole closing sticker X2 at the sticker adsorption position P based on the reflected light detected by the sticker detection sensor 9.

[0030] A pressing guide portion 10 for pressing the sealed tape X downward may be provided near the seal detection sensor 9. The pressing guide portion 10 is preferably configured as, for example, a rotatable roller member or a cylindrical member that suppresses friction with the sealed tape X while pressing the sealed tape X downward.

[0031] This holding and guiding portion 10 prevents the tape X with the seal from floating near the seal detection sensor 9, so that the reflected light can be detected with higher accuracy and the hole closing seal X2 can be stopped at the seal adsorption position P with higher accuracy.

[0032] 1, the expansion / contraction mechanism 22 contracts to move the suction pad 21 upward, and moves upward the hole closing seal X2 adsorbed to the suction pad 21. This allows the hole closing seal X2 to be peeled off from the release tape X1.

[0033] The moving mechanism 23 may be configured to move the telescopic mechanism 22 laterally along the rail portion by the driving force of the actuator. For example, as shown in Fig. 3, the moving mechanism 23 moves the suction pad 21 of the telescopic mechanism 22 laterally toward above the through-hole (1). At that position, the telescopic mechanism 22 extends the piston, and the hole closing seal X2 of the suction pad 21 is affixed to the through-hole, thereby closing the through-hole (2).

[0034] The seal application device 1 repeats the above-mentioned feeding operation of the sealed tape X, the expansion and contraction operation of the expansion mechanism 22, suction of the hole sealing seal X2 by the suction pad 21, peeling of the hole sealing seal X2 from the release tape X1, movement of the suction pad 21 by the movement mechanism 23, and application of the hole sealing seal X2 to the through hole by the extension operation of the expansion mechanism 22 for each hole sealing seal X2.

[0035] Next, a description will be given of the operation of the seal affixing device 1 after the hole closing seal X2 has been peeled off from the sealed tape X. As shown in FIG.

[0036] However, in conventional seal application devices, there is a risk that excessive force will act on the release tape X1 at the folded-back portion of the seal peeling section, causing the tape to tear, and making it difficult to wind up the release tape X1 smoothly.

[0037] In contrast to this, in this embodiment, the seal peeling portion 32 is provided with an outer guide portion 322 that guides the release tape X1 so as to spread the release tape X1 outward relative to the tip portion 321. The outer guide portion 322 is configured as, for example, a semi-cylindrical member provided below the tip portion 321.

[0038] The outer peripheral surface of this outer guide portion 322 spreads the release tape X1 outward relative to the tip portion 321, making it possible to make the folding angle of the release tape X1 at the tip portion 321 gentle. This reduces the local force applied to the release tape X1 at the folding portion of the seal peeling portion 32, preventing the tape from being torn, and allowing the release tape X1 to be wound up smoothly. In addition, by making the outer guide portion 322 a semi-cylindrical member, the release tape X1 and the outer guide portion 322 come into curved surface contact, making it possible to suppress the frictional force generated between the release tape X1 and the outer guide portion 322 from affecting the winding tension.

[0039] 1, the release tape X1 folded back at the tip 321 of the seal peeling section 32 reaches and is guided by the outer circumferential surface of the fourth guide roller 11 rotatably attached to the main body 7. Then, the release tape X1 guided by the fourth guide roller 11 reaches and is guided by the outer circumferential surface of the fifth guide roller 12 rotatably attached to the main body 7. Finally, the release tape X1 guided by the fifth guide roller 12 reaches the tape take-up section 33 and is taken up.

[0040] The tape winding section 33 winds up the release tape X1 guided by the fifth guide roller 12. The tape winding section 33 rotates about a rotation shaft supported by a bearing or the like of the main body section 7 by a drive motor or the like.

[0041] Here, when the rotation speed of the tape winding unit 33 is constant, the moving speed of the seal tape X increases as the core diameter of the release tape X1 wound by the tape winding unit 33 increases. On the other hand, as described above, in order to stop the hole closing seal X2 at the seal adsorption position P with high accuracy, it is preferable that the moving speed of the seal tape X is constant.

[0042] Therefore, it is preferable that the drive motor of the tape winding unit 33 changes the rotation speed of the tape winding unit 33 according to the core diameter of the release tape X1 wound by the tape winding unit 33. Specifically, it is preferable that the drive motor of the tape winding unit 33 decreases the rotation speed of the tape winding unit 33 as the core diameter of the release tape X1 wound by the tape winding unit 33 increases. Note that the tape winding unit 33 may calculate the core diameter of the release tape X1 based on, for example, the number of affixed hole closing seals X2.

[0043] This makes it possible to keep the moving speed of the tape X with the seal constant, and to stop the hole closing seal X2 at the seal adsorption position P with high accuracy.

[0044] Next, the sticker pasting method according to this embodiment will be described with reference to the flowchart of FIG 4.

[0045] The tape holding section 31 pays out the seal-attached tape X toward the tip 321 of the seal peeling section 32 (step S101).

[0046] The seal affixing section 2 adsorbs the hole closing seal X2 by the adsorption pad 21 at the tip 321 of the seal peeling section 32 and peels it off from the release tape X1 (step S102).

[0047] The sticker application unit 2 applies the hole closing sticker X2, which has been adsorbed by the suction pad 21, to the through hole (step S103).

[0048] Only the peeled release tape X1 is folded back at the tip 321 of the seal peeling portion 32 (step S104). The outer guide portion 322 guides the folded release tape X1 so as to spread it outward relative to the tip portion 321 (step S105).

[0049] The tape winding section 33 winds up the release tape X1 guided by the outer guiding section 322 (step S106).

[0050] As described above, the seal application device 1 according to this embodiment includes a tape holding section 31 that rotatably holds the sealed tape X, which is a strip-shaped release tape X1 to which hole closing seals X2 are attached at predetermined intervals, wound in a roll, a seal peeling section 32 that is configured so that the sealed tape X is fed toward a tip portion 321, the hole closing seal X2 is peeled off from the release tape X1 at the tip portion 321, and only the peeled release tape X1 is folded back at the tip portion 321, and a tape winding section 33 that winds up the release tape X1 folded back at the tip portion 321. The seal peeling section 32 is provided with an outer guide section 322 that guides the release tape X1 so as to spread it outward relative to the tip portion 321.

[0051] This outer guide portion 322 spreads the release tape X1 outward relative to the tip portion 321, making it possible to make the folding angle of the release tape X1 gentler at the tip portion 321. Therefore, it is possible to reduce the local force applied to the release tape X1 at the folding portion of the seal peeling portion 32, prevent the tape from being torn, and allow the release tape X1 to be smoothly wound up.

[0052] Although some embodiments of the present disclosure have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0053] 1 seal application device, 2 seal application section, 3 seal supply section, 4 first guide roller, 5 second guide roller, 6 third guide roller, 7 main body section, 8 adjustment section, 9 seal detection sensor, 10 holding guide section, 11 fourth guide roller, 12 fifth guide roller, 21 suction pad, 22 expansion mechanism, 23 movement mechanism, 31 tape holding section, 32 seal peeling section, 33 tape winding section, 221 cylinder, 222 piston, 223 guide shaft, 224 piston shaft, 225 bearing, 311 remaining amount sensor, 321 tip section, 322 outer guide section, X seal attached tape, X1 release tape, X2 hole closing seal

Claims

1. a tape holding section that rotatably holds a tape with a seal, the tape having hole closing seals attached at predetermined intervals to a strip-shaped release tape, in a rolled state; a seal peeling section configured such that the tape with the seal is fed toward a tip portion, the hole closing seal is peeled off from the release tape at the tip portion, and only the peeled release tape is folded back at the tip portion; A tape winding section that winds up the release tape folded back at the tip portion; A seal attachment device comprising: The seal peeling portion is provided with an outer guide portion that guides the release tape so as to spread the release tape outward relative to the tip portion. Sticker application device.

2. The seal application device according to claim 1, The seal tape is fed from the tape holding portion to the tip of the seal peeling portion via a pair of guide rollers, The pair of guide rollers guide the seal-attached tape in a sandwiched state, The pair of guide rollers is provided with an adjustment unit for adjusting the clamping pressure of the pair of guide rollers. Sticker application device.

3. The seal application device according to claim 1, The outer guide portion is configured as a semi-cylindrical member provided below the tip portion. Sticker application device.

4. The seal application device according to claim 1, The tape winding unit changes a rotation speed of the tape winding unit according to a core diameter of the release tape wound by the tape winding unit. Sticker application device.

5. A step of unwinding the tape with the seal, which is a strip-shaped release tape with hole closing seals affixed at predetermined intervals, from a tape holding section that rotatably holds the tape with the seal wound in a roll toward a tip of a seal peeling section; the hole closing seal is peeled off from the release tape at the tip of the seal peeling portion, and only the peeled release tape is folded back at the tip; The folded release tape is guided by an outer guide portion of the seal peeling portion so as to be spread outward relative to the tip portion; The release tape guided by the outer guide portion of the seal peeling unit is wound up by a tape winding unit; Including, How to apply stickers.

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