JP3979956B2 - Mouth belt applicator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a mouthband applicator for attaching a belt-like cutout paper or the like along an end of an adhesive sheet wound in a roller shape.
[0002]
[Prior art]
One end of a long adhesive sheet is connected to a winding shaft such as a paper tube, and the winding shaft is rotated to wind the adhesive sheet around the winding shaft, thereby winding the adhesive sheet in a roller shape. Techniques for finishing products are known. In the final step of winding the adhesive sheet around the winding shaft so that the other end can be easily peeled off when the adhesive sheet is first unwound from the roller-shaped product described above, the mouth paper is attached to the other end of the adhesive sheet. Is pasted. Such a technique is disclosed in Patent Document 1 below as a mouthband applicator.
[0003]
As shown in FIG. 11, the conventional bandage sticking device 101 sequentially feeds a band-like cutout paper 103 from a cutout raw material 102 and winds it around the peripheral surface of the suction drum 104, A cutting band 113 is formed by cutting into a predetermined dimension T as shown in FIG. The suction drum 104 can suck and hold the mouthpiece band 113 by a negative pressure generated by evacuating the inside of a body portion in which a large number of small holes are formed on the peripheral surface. The cut-out paper cutter 105 cuts the cut-out paper 103 by pressing a pair of blades 115 separated by a dimension T in the circumferential direction of the suction drum 104 against the peripheral surface of the suction drum 104.
[0004]
On the other hand, the pressure-sensitive adhesive sheet 106 is supplied from the left side of FIG. 11 to the mouthpiece banding device 101, and one end of the pressure-sensitive adhesive sheet 106 is wound around the turret 108 rotating around the support shaft 107 at an equiangular pitch. It is connected to a shaft 109 (a and b are individual indicators). The winding shaft 109a is rotationally driven by a motor or the like at the position of the winding shaft 109b, winds the adhesive sheet 106 around the peripheral surface, and then moves to the illustrated position as the turret 108 turns. By repeating the above steps, the adhesive sheets 106 are sequentially wound around the individual winding shafts 109 arranged on the turret 108.
[0005]
Immediately before finishing winding of the adhesive sheet 106 having a predetermined length on one winding shaft 109, the cutting band 113 divided into the above-described dimension T is attached to the adhesive surface of the adhesive sheet 116. In this process, a backup roller 121 is provided at the front end of the main arm 111 that rotates according to the expansion and contraction of the air cylinder 110, and a suction bar 114 is provided at the front end of the sub arm 122 that rotates according to the expansion and contraction of the air cylinder 120. This is performed by the configured mouthband transfer device 123.
[0006]
That is, as shown in FIG. 11 (b), the mouthband 113 held on the suction drum 104 is first transferred to the suction bar 114. This is because the suction drum 104 is rotated and the suction band 113 held by the suction drum 104 faces the suction bar 114, and at the same time, the negative pressure of the suction drum 104 is interrupted for a moment and a negative pressure is generated in the suction bar 114. By doing. The suction bar 114 is obtained by substantially reducing the diameter of the suction drum 104.
[0007]
Subsequently, as shown in FIG. 5A, the subarm 122 is rotated together with the main arm 111 to press the mouthband 113 held by the suction bar 114 against the adhesive surface of the adhesive sheet 116, and the adhesive sheet 106. The mouthband 113 is pasted in the middle of the longitudinal direction. In addition to this operation, while the backup roller 121 is pressed against the adhesive sheet 106, the sheet cutter 131 that crosses the adhesive sheet 106 according to the expansion and contraction of the air cylinder 130 cuts the edge of the cut band 113 of the adhesive sheet 106. Further, the cut band 113 is wound around the winding shaft 109a together with the cut portion (the other end).
[0008]
On the other hand, the cut portion of the adhesive sheet 106 remaining on the supply side (left side in the drawing) from the portion cut by the sheet cutter 131 becomes a new end. The new end is guided to a pad provided on the winding shaft 109b side of the sheet cutter 131 and pressed against the winding shaft 109b simultaneously with the operation of the sheet cutter 131 crossing the adhesive sheet 106. As a result, the adhesive surface of the adhesive sheet 116 facing the winding shaft 109b sticks to the peripheral surface of the winding shaft 109b, and one end of the adhesive sheet 106 is connected to the winding shaft 109b. In this state, if the take-up shaft 109b is driven to rotate as described above, the adhesive sheet 106 is wound around the take-up shaft 109b.
[0009]
[Patent Document 1]
Japanese Patent Laid-Open No. 62-12574
[0010]
[Problems to be solved by the invention]
In the conventional bandage sticking device 101, as shown in FIG. 11, the full width of the cutout paper 103 and the width dimension W of the original cutout band 102 must be substantially equal to the width dimension of the adhesive sheet 106. . The adhesive sheet 106 has a unique width dimension for each standard or type. For this reason, it is necessary to prepare a plurality of cut-out strip original fabrics 102 having different width dimensions W, and replace the cut-out strip original fabric 102 with appropriate ones according to the width dimensions of various adhesive sheets 106. Therefore, such replacement cropping causes a delay in manufacturing time.
[0011]
Further, in the conventional mouthband applicator 101, since the sheet cutter 131 reciprocates only in the thickness direction of the adhesive sheet 106 according to the expansion and contraction of the air cylinder 130, a saw blade that can bite into the adhesive sheet 106 at a substantially right angle is provided. Must be applied. Accordingly, the shape of the cut surface of the pressure-sensitive adhesive sheet 106 becomes a saw-tooth, and the appearance of the appearance is impaired.
[0012]
Accordingly, an object of the present invention is to provide a mouthband applicator that does not require replacement of the adhesive sheet even if the width dimension of the adhesive sheet changes.
[0013]
[Means for Solving the Problems]
The mouthband applicator according to the present invention includes a winding shaft that extends in the width direction of the pressure-sensitive adhesive sheet and winds up the pressure-sensitive adhesive sheet, and a sheet cutter that cuts the pressure-sensitive adhesive sheet wound around the winding shaft in the width direction. A mouthband applicator for attaching a mouthband extending in the width direction to an end of an adhesive sheet that is cut by the sheet cutter and wound on the take-up shaft, A slider unit equipped with a raw fabric supporting portion that supports the raw fabric of the mouthpiece belt, feeding means for feeding out the mouthpiece belt from the original fabric, and a cutter for cutting off the mouthpiece belt from the original fabric The slider unit is slidably engaged in the width direction of the pressure-sensitive adhesive sheet, and is disposed between the feed rail disposed on the pressure-sensitive adhesive surface side of the pressure-sensitive adhesive sheet, and between the slider unit and the pressure-sensitive adhesive surface of the pressure-sensitive adhesive sheet A suction drum for sucking the mouthpiece belt drawn from the original fabric with a negative pressure, and a drive means for causing the slider unit to travel along the feed rail with a stroke corresponding to the width dimension of the adhesive sheet; And the feeding means runs the slider unit while feeding the mouthband from the original fabric for a length corresponding to the width dimension of the pressure-sensitive adhesive sheet, The entire length of the mouthpiece band is cut into a length that matches the widthwise dimension of the pressure-sensitive adhesive sheet by a mouthpiece cutter, and the end of the pressure-sensitive adhesive sheet is held while the mouthpiece band is held by the suction drum. It is configured to press against the adhesive surface of the part It is what.
[0014]
Further, in the mouthpiece band pasting device according to the present invention, the feeding means of the slider unit is a position where the mouthpiece band is wound around a peripheral surface and is in rolling contact with the suction drum, or a position away from the suction drum. A first pinch roller that is displaced to the first pinch roller, a position that is arranged in a direction in which the slider unit travels with respect to the first pinch roller, and the suction band that is sucked by the suction drum is pressed against the suction drum, or the suction A second pinch roller displaced to a position away from the drum, and the cutting cutter is advanced and retracted between the first pinch roller and the second pinch roller in a direction crossing the cutting belt. It is characterized by.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIG. 1 and FIG. 2, a mouthband banding device 1 according to an embodiment of the present invention includes a winding shaft 3 for winding an adhesive sheet 2 and an adhesive sheet 2 wound on the winding shaft 3. And a cutting belt 5 in the vicinity of the end (cut) of the adhesive sheet 2 cut by the sheet cutter 4, a slider unit 6, a feed rail 7, and a suction drum 8 described below. And by the driving means 9.
[0016]
As the cut band 5, for example, a paper tape or a vinyl tape having a width of about 10 mm may be applied. This width dimension corresponds to the thickness of the original fabric 50.
[0017]
As shown in FIG. 3, the slider unit 6 includes a raw fabric support portion 10 that supports the raw fabric 50 of the mouthpiece belt 5, a feeding means 11 that feeds the mouthpiece belt 5 from the raw fabric 50, and A slider on which a cutting cutter 12 for separating the band 5 is mounted, and is slidably engaged with the feed rail 7.
[0018]
As shown in FIGS. 1 and 2, the feed rail 7 includes a leg portion 71 raised on the floor surface 70 on the adhesive surface 20 side of the adhesive sheet 2, and a side frame 72 of the main frame of the mouthband applicator 1. Is fixed to the upper surface of the horizontal member 73 that is bridged in a horizontal posture. A linear bearing can be used as the feed rail 7. The longitudinal direction of the feed rail 7, that is, the direction in which the slider unit 6 slides along the feed rail 7 coincides with the width direction of the adhesive sheet 2. Hereinafter, these directions are simply referred to as “width direction”.
[0019]
The original fabric support portion 10 has a shaft that rotatably supports the original fabric 50 in the circumferential direction thereof and protrudes from the upper surface of the frame 62 of the slider unit 6.
[0020]
The feeding means 11 includes a first pinch roller 13 that winds the cut strip 5 around the circumferential surface, a second pinch roller 14 that is arranged at an interval in the width direction with respect to the first pinch roller 13, and an original fabric The roller group 15 is configured to meander the mouthband 5 between the first pinch roller 13 and the first pinch roller 13 without slack.
[0021]
Although the detailed illustration is omitted, the first pinch roller 13 is rotated only by the frictional force when traveling on the suction drum 8 in this example. The first pinch roller 13 may be driven to rotate intermittently or continuously by a servo motor or the like. A plurality of suction holes are provided on the peripheral surface of the body portion of the first pinch roller 13 for sucking the mouthband 5 with negative pressure. This negative pressure is generated by a vacuum pump or the like connected to the inside of the first pinch roller 13 via a flexible hose 131.
[0022]
The first and second pinch rollers 13 and 14 are displaced in directions orthogonal to the suction drum 8 by air cylinders 130 and 140, respectively. That is, the air cylinders 130 and 140 are respectively fixed to the frame 62 in a posture parallel to each other with a gap in the width direction, and the first and second pinch rollers 13 and 14 are advanced and retracted by extending and contracting the respective operating rods. Is.
[0023]
As shown in FIGS. 6 and 7, the mouthpiece cutter 12 has a cutter advancing / retreating air cylinder 120 fixed on the suction drum 8 side of the frame 62 in the direction along the width direction, and the mouthpiece cutter 12 extends and retracts as the operating rod extends and retracts. It advances and retreats in the direction crossing the belt 5. Details will be described later in conjunction with the description of FIG.
[0024]
The suction drum 8 is disposed between the slider unit 6 and the adhesive surface 20 of the adhesive sheet 2. A single convex portion Y0 is formed on the body portion of the suction drum 8. Further, the convex portion Y0 has an adsorption hole for sucking the mouthpiece 5 extending from the raw fabric 50 and extending from the slider unit 6 with a negative pressure. Provided. Since the technique related to the suction hole is the same as that of the first pinch roller 13 described above, illustration and description thereof are omitted.
[0025]
The suction drum 8 and the feed rail 7 are arranged so that their longitudinal directions are parallel to each other. That is, the longitudinal direction of the suction drum 8 coincides with the width direction. Both ends of the suction drum 8 are rotatably supported by bearings 80 on the side frame 72 of the main frame and the side frame 74 on the opposite side. A motor 81 with a speed reducer that rotationally drives the suction drum 8 is provided on the outer surface of the side frame 74.
[0026]
Further, a rubber roller 82 is provided in parallel with the suction drum 8. Both ends of the rubber roller 82 are rotatably supported by bearings 83 on the side frame 72 and the side frame 74 of the main frame, respectively. The rubber roller 82 is in rolling contact with the adherend surface 21 of the adhesive sheet 2 and presses the adhesive sheet 2 against the peripheral surface of the suction drum 8.
[0027]
The driving means 9 is for causing the slider unit 6 to travel along the feed rail 7 with a stroke corresponding to the width dimension of the adhesive sheet 2. This width dimension is set to be equal to or slightly narrower than the distance between both ends in the width direction of the body portion of the suction drum 8 shown in FIG.
[0028]
As shown in FIG. 1, the specific configuration of the drive means 9 includes a motor 90 with a speed reducer provided on the outer surface of the side frame 72, a pair of belt pulleys 91 respectively disposed on both ends outward of the horizontal member 73, and The timing belt 92 is wound around a pair of belt pulleys 91 and the slider unit 6 is fixed on the way. When one of the belt pulleys 91 is rotationally driven by the motor 90 with a speed reducer, the timing belt 92 travels so as to circulate through the pair of belt pulleys 91, and the slider unit 6 travels accordingly.
[0029]
Next, operation | movement of the mouthpiece band sticking apparatus 1 which concerns on this Embodiment is demonstrated. In the following, detailed description and illustration of the items described as the prior art will be omitted. Further, all the operations relating to the slider unit 6, the suction drum 8, and the driving means 9 are performed based on a command from a microprocessor or the like. The position, timing, speed, and the like at which these operations are started / stopped are determined by a program that can be read by the microprocessor or the like in a timely manner.
[0030]
First, as shown in FIG. 1, the slider unit 6 stands by at one end side (left side in the drawing) of the feed rail 7. In this state, as shown in FIG. 3, the first pinch roller 13 and the second pinch roller 14 are retracted to positions away from the suction drum 8.
[0031]
On the other hand, the adhesive sheet 2 is supplied to the mouthband applicator 1 from the lower left of FIG. Reference numerals 84 to 88 shown in the figure indicate a group of rollers for guiding the adhesive sheet 2 between the suction drum 8 and the rubber roller 82 and further to the winding shaft 3 (a and b are individual indexes). ing. A plurality of winding shafts 3 are arranged at equiangular pitches on the turret, the adhesive sheet 2 is connected to these winding shafts 3, and one winding shaft 3a is a motor or the like at the position of the other winding shaft 3b. In the same manner as in the prior art, after the adhesive sheet 2 is wound around and wound around the peripheral surface, the sheet moves to the position shown in the drawing as the turret turns.
[0032]
Immediately before the pressure-sensitive adhesive sheet 2 having a predetermined length is wound around the take-up shaft 3, it is a portion to be an end of the pressure-sensitive adhesive sheet 2 having a predetermined length, in other words, a portion to be cut by the sheet cutter 4. Then, it is detected where the portion (hereinafter simply referred to as “termination”) that is wound around the winding shaft 3 after being cut by the sheet cutter 4 is detected. This is because the length of the pressure-sensitive adhesive sheet 2 wound around the take-up shaft 3 is read by, for example, reading the angle at which the roller group 84 to 86 or the suction drum 8 is rotated while being in contact with the pressure-sensitive adhesive sheet 2 with an encoder. This can be done by measuring. For example, the roller 86 may be a counter roll connected to an encoder.
[0033]
When the pressure-sensitive adhesive sheet 2 is wound around the winding shaft 3a at the position of the winding shaft 3b, the entire pressure-sensitive adhesive sheet 2 travels toward the winding shaft 3a. The end of the pressure-sensitive adhesive sheet 2 is pulled by the pressure-sensitive adhesive sheet 2a that has already been wound around the take-up shaft 3a and changed in the form of a roll, and from the X between the suction drum 8 and the rubber roller 82 to the take-up shaft 3a. Move towards. In this process, the winding shaft 3a is moved to the position described as 3a in FIG. The timing of this movement is set so as to be completed before the end of the pressure-sensitive adhesive sheet 2 passes just below the winding shaft 3b.
[0034]
When the end of the adhesive sheet 2 reaches X between the suction drum 8 and the rubber roller 82 (hereinafter simply referred to as X) as shown in FIG. Affixed to the end of the adhesive surface 20. A series of pasting steps of the mouthpiece 5 is performed through the following steps A to J. Note that the adhesive sheet 2 continues to be wound at the position of the winding shaft 3a shown in FIG. 2 during the following steps A to J.
[0035]
A: The slider unit 6 waiting on one end side of the feed rail 7 in the state shown in FIG. 3 is caused to travel toward the other end side (right side in FIG. 1) of the feed rail 7 by the driving means 9. Further, as shown in FIG. 4, the first pinch roller 13 of the feeding means 11 is advanced to a position where it rolls into contact with the convex portion Y0 of the suction drum 8. Such a position of the first pinch roller 13 is shown as an imaginary line 13a in FIG.
[0036]
B: The first pinch roller 13 is rotated in the clockwise direction in the drawing while sucking the cutting strip 5 fed from the original fabric 50 through the roller group 15 to the peripheral surface of the first pinch roller 13 with negative pressure. . As a result, the cutting band 5 is unwound from the original fabric 50 while being wound around the first pinch roller 13.
[0037]
C: The slider unit 6 is further moved from the position of the A step toward the other end side of the feed rail 7 by the driving means 9.
[0038]
D: The cutting band 5 that continues to be fed out from the original fabric 50 is held on the peripheral surface of the first pinch roller 13 and turns around toward the suction drum 8 as the first pinch roller 13 rotates clockwise. As shown in FIG. 5, the mouthpiece 5 is separated from the first pinch roller 13 and is sucked and held by the suction drum 8 when it comes into contact with the convex portion Y0 of the suction drum 8.
[0039]
This is because the suction force generated in the suction drum 8 is larger than that in the first pinch roller 13 in order to place the mouthband 5 on the suction drum 8 from the first pinch roller 13.
[0040]
As described above, the entire length of the mouthpiece belt 5 held by the convex portion Y0 of the suction drum 8 extends along the width direction. The total length dimension corresponds to the distance traveled by the first pinch roller 13 from the position of the imaginary line 13a toward the other end of the feed rail 7.
[0041]
E: When the above-mentioned distance that the slider unit 6 travels on the feed rail 7 reaches or exceeds the widthwise dimension (full width) of the pressure-sensitive adhesive sheet 2, that is, as shown by the imaginary line 13b in FIG. When the pinch roller 13 slightly passes the other side edge of the adhesive sheet 2 near the other end of the suction drum 8, the driving unit 9 is stopped and the slider unit 6 is stopped. The position 13b can be determined because the number of rotations (distance) of the motor 90 is detected.
[0042]
F: As shown in FIG. 6, the first pinch roller 13 indicated by the imaginary line 13b in FIG. 1 is moved backward again to be separated from the suction drum 8, and the second pinch roller 14 is advanced. As a result, the mouthband 5 is sucked between the first pinch roller 13 and the second pinch roller 14 while the mouthband 5 sucked by the suction drum 8 is pressed against the suction drum 8 by the second pinch roller 14. The mouthpiece cutter 12 is crossed in the forward / backward direction.
[0043]
G: As shown in FIG. 7, the cutting cutter 12 is advanced to cut the cutting band 5. Thereby, the full length of the cut-out belt 5 can be cut to a length that matches the dimension in the width direction W of the pressure-sensitive adhesive sheet 2 shown in FIG. Immediately, as shown in FIG. 8, the mouthpiece cutter 12 is retracted again.
[0044]
When the mouthpiece cutter 12 is moved forward as described above, the mouthpiece 5 is stopped by the stopper 121 sandwiched between the mouthpiece belt 5 in order to prevent the mouthpiece belt 5 from being unnecessarily pulled out of the original fabric 50 by the reaction force of cutting. The belt 5 may be temporarily held. As the stopper 121, for example, a stopper that presses an operating rod against one roller of the roller group 15 and sandwiches the cutting band 5 between these rollers and the operating rod can be applied. It should be noted that the slider unit 6 that has finished cutting the mouthband 5 travels back to the original position.
[0045]
H: It is detected by the encoder of the roller 86 described above that the winding of the adhesive sheet 2 of a predetermined length is nearing completion and the end of the adhesive sheet 2 has reached the position indicated by the symbol X0 in FIG. The clockwise circumferential distance from the convex portions Y0 to X of the suction drum 8 is set equal to the length dimension from X0 to X in the adhesive sheet 2. In addition, the termination | terminus of the said adhesive sheet 2 means the location used as the termination | terminus of the adhesive sheet 2 wound up by the winding shaft 3a, and the adhesive sheet 2 has repeated the process wound up by the next winding shaft. Therefore, the guidance is continued by the roller groups 84 to 87.
[0046]
In the process where the end of the adhesive sheet 2 that has reached X0 moves to X, the suction drum 8 is rotated in synchronization with this. Then, when the mouthband 5 held by the convex portion Y0 of the suction drum 8 reaches X, it contacts the terminal end of the adhesive sheet 2 and the adhesive surface 20 in the vicinity thereof. In this state, the pressure-sensitive adhesive sheet 2 and the cut-out band 5 are overlapped and compressed between the suction drum 8 and the rubber roller 82. For this reason, the mouthband 5 adheres and adheres to the terminal surface of the adhesive sheet 2 and the adhesive surface 20 in the vicinity thereof. Thereafter, the suction drum 8 further rotates and returns to the original standby position. In addition, by providing a proximity sensor between the rotating shaft of the suction drum 8 and the fixed side, the rotation stop position when the suction drum 8 rotates to the adhesive sheet 2 is detected by the proximity sensor, and the suction drum The rotation of 8 is stopped.
[0047]
I: After the above H step is completed, the pressure-sensitive adhesive sheet 2 is further wound around the take-up shaft 3a, whereby the entire pressure-sensitive adhesive sheet 2 travels toward the take-up shaft 3a. The end of the pressure-sensitive adhesive sheet 2 to which the cut-out band 5 is attached is pulled by the pressure-sensitive adhesive sheet 2a that has already been wound around the winding shaft 3a and changed into a roll shape, and is directed toward the winding shaft 3a in FIG. Move.
[0048]
J: The adhesive sheet 2 is stopped when the end of the adhesive sheet 2 reaches the position 40 in FIG. This temporarily stops the rotation of the winding shaft 3a, thereby interrupting the winding of the adhesive sheet 2 on the winding shaft 3a and at the same time interrupting the supply of the adhesive sheet 2 from the roller 84 side. To do. And the wrinkle which stuck the mouthpiece band 5 of the adhesive sheet 2 is cut | disconnected by the sheet cutter 4 cut into the adhesive sheet 2 moving to the width direction. Here, the wrinkle to which the mouthband 5 is pasted is a portion that is about 0.1 to 0.5 mm closer to the X (left in FIG. 2) side of the adhesive sheet 2 than the mouthband 5 in FIG. is there. Thereafter, the sheet cutter 4 is lowered to a position indicated by a solid line in FIG. Further, when the cutting of the adhesive sheet 2 is completed, the encoder of the roller 86 is reset. Then, the winding shaft 3a is rotated again, and the end of the pressure-sensitive adhesive sheet 2 reaches the winding shaft 3a, and all winding of the winding shaft 3a is completed.
[0049]
In addition, you may perform without interrupting supply of the adhesive sheet 2 to the mouthpiece band sticking apparatus 1 so that operation of the whole production line which produces the adhesive sheet 2 may not be disturbed. For example, simultaneously with temporarily stopping the rotation of the take-up shaft 3a, the adhesive sheet 2 is moved to the upper part of the drawing by moving the roller 84 or another moving roller not shown in the drawing upward. Temporarily extend the process leading to 1. The adhesive sheet 2 on the side of the take-up shaft 3a with respect to the roller 84 or the other moving roller is kept stationary for about 0.5 to 2 seconds until the adhesive sheet 2 is extended. Also good.
[0050]
2 and 9, the sheet cutter 4 includes a slide holder 41 that supports the flat blade 40, and a blade guide rail 42 that slidably engages the slide holder 41 in the width direction of the adhesive sheet 2. A drive source (not shown) for causing the flat blade 40 to cut into the adhesive sheet 2 by running the slide holder 41 in the width direction is provided.
[0051]
As shown in FIG. 10, the flat blade 40 has an inclined posture with its tip protruding to the upper end of the slide holder 41, and the vicinity of the other end is joined to the slide holder 41 via a pin 43. At the upper end of the slide holder 41, a slit that does not appear in the figure is formed in order to insert the flat blade 40. A stopper 44 is provided on one side surface of the slide holder 41 to maintain the inclination angle of the flat blade 40 and to define the length that the tip of the flat blade 40 protrudes from the slide holder 41.
[0052]
A brush 46 is provided on the other side of the slide holder 41 via an L-shaped metal fitting 46. The brush 46 is in sliding contact with the pressure-sensitive adhesive surface 21 of the pressure-sensitive adhesive sheet 2 and presses the pressure-sensitive adhesive surface 20 of the pressure-sensitive adhesive sheet 2 to stick to the winding shaft 3b. This corresponds to the operation of the pad described as the prior art. Therefore, the edge part of the adhesive sheet 2 cut | disconnected by said M process sticks to the winding axis | shaft 3b right above it, and can repeat above A step continuously.
[0053]
The slide holder 41 is engaged with the blade guide rail 42 via a slider 47 connected to the lower end thereof. Both ends of the blade guide rail 42 are respectively connected to brackets 49 that can turn around a horizontal axis 48 extending in the width direction. Although not shown in the figure, both ends of the horizontal shaft 48 are respectively supported rotatably on the side frames 72 and 74 of the main frame. Each bracket 49 is pin-bonded with an operating rod 52 of an air cylinder 51 that is pin-bonded to a floor surface 50 on which the mouthband applicator 1 is installed.
[0054]
As shown in FIG. 2, the slide holder 41 moves up and down together with the blade guide rail 42 according to the advance / retreat operation of the operating rod 52. As a result, as indicated by a solid line in the figure, the tip of the flat blade 40 rises to a position where it contacts the winding shaft 3 or slightly bites into the winding shaft 3, or as indicated by a virtual line in the figure. Then, the flat blade 40 descends to a position away from the winding shaft 3.
[0055]
With the slide holder 41 raised as described above, the pressure-sensitive adhesive sheet 2 is made stationary as described above. Further, when the driving means constituting the sheet cutter 4 is activated and the slide holder 41 is caused to travel from one end side (left side in the drawing) of the blade guide rail 42 shown in FIG. The sheet 2 is cut by the flat blade 40 that crosses the sheet 2 in the width direction. When the cutting of the pressure-sensitive adhesive sheet 2 is completed, the slide holder 41 is lowered, and the ascending slide holder 41 is caused to travel in the opposite direction to the one end side of the blade guide rail 42.
[0056]
The reason why the slide holder 41 is separated from the take-up shaft 3 together with the blade guide rail 42 as described above is to retract them so as not to obstruct the movement of the take-up shaft 3 as the turret turns. .
[0057]
Further, as indicated by the solid line in the drawing, the roller 88 is pushed up the pressure-sensitive adhesive sheet 2 just before being wound on the winding shaft 3a, and the tension is applied to the portion of the pressure-sensitive adhesive sheet 2 cut by the flat blade 40. As shown by the phantom line in the figure, it may be moved up and down between the position away from the winding shaft 3a. This is to retract the roller 88 for the same reason as described above.
[0058]
It should be noted that the present invention can be implemented in variously modified, modified, and modified forms based on the knowledge of those skilled in the art without departing from the spirit of the present invention.
[0059]
【The invention's effect】
According to the mouthband applicator according to the present invention, the mouthband is supplied along the end of the pressure-sensitive adhesive sheet, and the total length of the mouthband is arbitrarily matched with the widthwise dimensions of various pressure-sensitive adhesive sheets. Therefore, it is possible to reduce the manufacturing time by replacing the original fabric of the mouthpiece belt as in the prior art, and eliminating the miscellaneous work.
[0060]
Further, according to the mouthband applicator according to the present invention, the driving means causes the slider unit to travel while the feeding means feeds out the mouthband of the length corresponding to the width dimension of the adhesive sheet from the original fabric. Since the entire length of the mouthpiece band is cut to a length that matches the widthwise dimension of the adhesive sheet by the cutter for cutting, the entire length of the mouthpiece band is matched to the widthwise dimensions of various adhesive sheets. Can be cut to any length. In addition, since the cut-out cut band is held by the suction drum, the cut-out cut-out band is securely pressed against the pressure-sensitive adhesive surface at the end of the pressure-sensitive adhesive sheet. It can transfer to an edge part and can affix on an adhesive sheet.
[0061]
Therefore, even if the process from cutting the cutting band to sticking to the adhesive sheet is repeated, the relative positioning of the cut cutting band and the end (cut) of the adhesive sheet is accurately determined each time. Since it can be done, the finished product can be kept uniform.
[0062]
Further, according to the mouthband applicator according to the present invention, the first pinch roller and the second pinch roller are moved forward and backward with respect to the suction drum, so that the first pinch roller and the second pinch roller It is possible to strain the mouthband. Since the mouthpiece cutter is advanced and retracted in a direction crossing the tensioned mouthpiece band, the shearing force by which the mouthpiece cutter cuts the mouthpiece band does not escape due to the slackness of the mouthpiece band. For this reason, it is possible to shorten the stroke time by shortening the mouthpiece band, and to straighten the cut edge of the mouthpiece band to make the finished product beautiful.
[Brief description of the drawings]
1A and 1B are a plan view and a front view of a main part of a mouthband applicator according to an embodiment of the present invention.
FIG. 2 is a side view of the main part of the mouthband applicator according to the embodiment of the present invention.
FIG. 3 is a plan view showing a first step of the operation of the slider unit applied to the mouthband applicator according to the embodiment of the present invention.
FIG. 4 is a plan view showing a second step of the operation of the slider unit applied to the mouthband applicator according to the embodiment of the present invention.
FIG. 5 is a plan view showing a third step of the operation of the slider unit applied to the mouthband applicator according to the embodiment of the present invention.
FIG. 6 is a plan view showing a fourth step of the operation of the slider unit applied to the mouthband applicator according to the embodiment of the present invention.
FIG. 7 is a plan view showing a fifth step of the operation of the slider unit applied to the mouthband applicator according to the embodiment of the present invention.
FIG. 8 is a plan view showing a sixth step of the operation of the slider unit applied to the mouthband applicator according to the embodiment of the present invention.
FIG. 9 is a front view of a sheet cutter applied to the mouthband applicator according to the embodiment of the present invention.
FIG. 10 is a front view showing a main part of a sheet cutter applied to the mouthband applicator according to the embodiment of the present invention.
FIG. 11 is a side view showing an operating state of a conventional mouthband applicator and its main part.
FIG. 12 is a perspective view of a material manufactured using a conventional mouthband applicator.
[Explanation of symbols]
1: Mouth belt applicator
2: Adhesive sheet
3: Winding shaft
4: Sheet cutter
5: Mouth belt
6: Slider unit
7: Feed rail
8: Suction drum
9: Driving means
10: Raw fabric support part
11: Feeding means
12: Cutting cutter
13: First pinch roller
14: Second pinch roller
20: Adhesive surface
50: Original fabric

Claims (2)

A winding shaft that extends in the width direction of the pressure-sensitive adhesive sheet and winds up the pressure-sensitive adhesive sheet; and a sheet cutter that cuts the pressure-sensitive adhesive sheet wound around the winding shaft in the width direction. A mouthband application device for attaching a mouthband extending in the width direction to the end of the pressure-sensitive adhesive sheet wound around the take-up shaft,
A slider unit equipped with a raw fabric supporting portion that supports the raw fabric of the mouthpiece belt, feeding means for feeding out the mouthpiece belt from the original fabric, and a cutter for cutting off the mouthpiece belt from the original fabric When,
The slider unit is slidably engaged in the width direction of the adhesive sheet, and a feed rail disposed on the adhesive surface side of the adhesive sheet;
A suction drum that is arranged between the slider unit and the adhesive surface of the adhesive sheet, and sucks the mouthpiece belt drawn out from the original fabric with a negative pressure;
Drive means for causing the slider unit to travel along the feed rail with a stroke corresponding to the width dimension of the adhesive sheet;
While the feeding means feeds out the mouthpiece belt corresponding to the width of the adhesive sheet from the original fabric, the driving means runs the slider unit, and the mouthpiece cutter cuts the mouthpiece. The entire length of the strip is cut into a length that matches the widthwise dimension of the pressure-sensitive adhesive sheet, and the mouthband is pressed against the pressure-sensitive adhesive surface at the end of the pressure-sensitive adhesive sheet while being held by the suction drum. A mouthband banding device characterized by that . A first pinch roller that displaces the feeding means of the slider unit to a position at which the mouthpiece belt is wound around a circumferential surface and is in rolling contact with the suction drum, or a position away from the suction drum;
The first pinch roller is arranged in a direction in which the slider unit travels, and is displaced to a position where the suction band sucked by the suction drum is pressed against the suction drum or a position away from the suction drum. It consists of two pinch rollers,
The groom cutter, wherein between the first pinch roller and the second pinch roller, groom bands sticking apparatus according to claim 1, wherein the advancing and retracting in a direction transverse to the horse boy band.

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