JP6913358B2 - Picking device - Google Patents

Description

The present invention relates to a knob forming device that forms a knob on a tape having an adhesive surface.

As an example of the picking forming device, there is a device for making a non-adhesive tag (picking) by sticking adhesive surfaces of adhesive tapes (tapes) together (for example, Patent Document 1). In this device, an air pump is provided between a cutter portion for cutting the adhesive tape and a protruding plate located between the adhesive tape roll and the cutter portion.

Japanese Unexamined Patent Publication No. 2013-60296

When the cutter portion moves to the protrusion plate side, the air pump ejects air toward the adhesive tape attached to the protrusion plate and the cutter portion. As a result, the adhesive tape was curved and a tag was formed. Therefore, the shape of the non-adhesive tag has varied.

These problems are generally common not only in the device for making a non-adhesive tag on the adhesive tape but also in the pinch forming device for forming a knob on the tape.
An object of the present invention is to provide a pinch forming apparatus capable of reducing variations in the shape of a pinch.

Hereinafter, means for solving the above problems and their actions and effects will be described.
The knob forming device for solving the above problems has a support portion having a support surface capable of supporting a tape having one of the front and back surfaces as an adhesive surface and the other as a non-adhesive surface from the non-adhesive surface side, and the support. The support portion is provided with a spray portion capable of blowing air on the portion, and the support portion is formed with a groove that is recessed from the support surface so that the tape can be curved and accepted, and the groove is larger than the bottom portion of the groove. A wide portion having a wide groove width located near the support surface and a narrow portion having a narrow groove width narrower than the wide portion by communicating with the wide portion located closer to the bottom portion than the wide portion. The spraying portion has a portion and a portion, and the spraying portion sprays the air toward the groove.

According to this configuration, when the spraying portion blows air toward the groove through the tape supported on the support surface so as to extend across the groove, the tape is curved and pushed into the groove. Since the wide portion located on the support surface side has a wide groove width, the tape can be easily pushed into the groove. Since the narrow portion located in the back has a narrower groove width than the wide portion, the tape is a portion where the tape is pushed in with the portion connected to the portion pushed into the groove supported by the support portion in the length direction. The adhesive surfaces of the above are stuck together to form a knob. Therefore, the variation in the shape of the pick can be reduced.

In the knob forming device, the support portion has a non-support surface different from the support surface, and the support portion has a communication hole that opens in the non-support surface and allows the narrow portion and the outside to communicate with each other. Is preferably formed.

According to this configuration, since the support portion is formed with a communication hole that opens to the non-support surface, the air blown by the spray portion can be discharged to the outside through the communication hole. Therefore, since the air blown into the groove does not bounce back from the back of the groove to the inlet side, the behavior of the tape forming the knob at the back of the groove can be stabilized by the blown air.

In the knob forming device, it is preferable that a part of the communication hole constitutes the inner surface of the bottom portion and the inner surface of the bottom portion is a curved surface.
According to this configuration, since a part of the communication hole constitutes the inner surface of the bottom of the groove, the tape pushed into the back of the groove is deformed along the inner surface of the bottom which is a part of the communication hole. In this case, since the inner surface of the bottom of the groove is a curved surface, the tape can be easily run along the inner surface of the bottom.

In the knob forming device, the spraying portion is positioned at the free end of the tape cut in a state of being supported by the support surface so as to extend across the groove among the walls forming the inner surface of the groove. It is preferable to blow the air toward the wall located on the side opposite to the side where the air is to be blown.

According to this configuration, the spray section blows air toward a wall located away from the free end of the cut tape. Therefore, when the tape is cut and then curved and pushed into the groove by blowing air, the free end of the cut tape can be pulled into the groove to form a knob. Therefore, the behavior of the tape can be stabilized and the variation in the shape of the knob can be further reduced.

In the knob forming device, it is preferable that the support portion is rotatable about an axis between the time when the cutting portion capable of cutting the tape cuts the tape and the time when the spraying portion blows the air. .. According to this configuration, when the support rotates after the cut cuts the tape, the groove moves relative to the edge of the tape. Therefore, the size of the knob formed can be changed.

The knob forming device includes a nip roller capable of pressing the tape from the adhesive surface side against the support portion, and a pressing roller capable of holding the tape from the non-adhesive surface side. It is preferable to have a drum in which an accommodating portion for accommodating the pressing roller is formed, and a guide having a diameter larger than that of the drum.

According to this configuration, a nip roller that presses the tape against the support portion, a pressing roller that is housed in the drum of the support portion and holds the tape, and a guide are provided, so that the behavior of the tape can be stabilized. can.

According to the present invention, it is possible to reduce variations in the shape of the knob.

The schematic diagram of one Embodiment of a picking forming apparatus. FIG. 1 is a cross-sectional view taken along the line 2-2. Schematic cross-sectional view of the groove and the sprayed portion. Block diagram of the knob forming device. Flowchart of the picking formation processing routine. Schematic cross-sectional view of a knob forming device in which a tape is set. Schematic cross-sectional view of a knob forming device for cutting a tape. Schematic cross-sectional view of a knob forming device that rotates a support to change the knob size. Schematic cross-sectional view of a knob forming apparatus in which a cut portion is located at a non-cut position. Schematic cross-sectional view of a knob forming device that blows air into a groove. Schematic cross-sectional view of a knob forming apparatus which holds a knob with a holding roller. The schematic cross-sectional view of the knob forming apparatus which the 2nd suction part sucks a tape. Schematic cross-sectional view of a knob forming device that rotates a support portion while adsorbing tape. FIG. 3 is a schematic cross-sectional view of a knob forming device in which the first suction part and the second suction part suck the tape. Schematic cross-sectional view of a knob forming device that presses the tip of a tape against a work. Schematic cross-sectional view of a knob forming device for attaching tape to a work. Schematic cross-sectional view of a knob forming apparatus in which a cut portion cuts a tape. Schematic cross-sectional view of a knob forming device for attaching tape to a work. Schematic cross-sectional view of a knob forming device in which the nip roller is located at the nip position. Schematic cross-sectional view of a knob forming device in which the support portion is separated from the work. Schematic cross-sectional view of a knob forming device that blows air into a groove. Schematic cross-sectional view of the groove and the spraying portion of the modified example.

Hereinafter, an embodiment of the picking forming apparatus will be described with reference to the drawings. The picking and forming device of the present embodiment is a frame pasting machine that attaches a sheet-like work such as a ceramic green sheet or a flexible printed circuit board to a frame using an adhesive tape.

As shown in FIG. 1, the knob forming device 11 includes a feeding portion 13 for feeding out the tape 12 wound in a roll shape, a nip roller 14 for holding the tape 12, and a supporting portion 15 for supporting the tape 12. Further, the knob forming device 11 includes a drive source 17 that rotates the support portion 15 around a drive shaft 16 that is an example of a shaft, and a first movement mechanism 18 that moves the support portion 15. In the present embodiment, the posture of the support portion 15 shown in FIG. 1 is used as a reference posture.

The support portion 15 has a support surface 15a capable of supporting the tape 12. The support portion 15 is formed with a groove 20 recessed from the support surface 15a so that the tape 12 can be bent and accepted. In the present embodiment, the size of the groove 20 in the axial direction X of the drive shaft 16 is defined as the length of the groove 20, and the size of the groove 20 in the circumferential direction Y around the drive shaft 16 is defined as the width of the groove 20. That is, the axial direction X is also the length direction of the groove 20, and the circumferential direction Y is also the width direction of the groove 20. The axial direction X of the present embodiment intersects (preferably orthogonally) the vertical direction Z. In the following description, the length of the groove 20 is also referred to as “groove length”, and the width of the groove 20 is also referred to as “groove width”. The groove length of the groove 20 is larger than the maximum groove width.

The length of the tape 12 is defined as the size in the direction in which the tape 12 is pulled out from the rolled state, and the width of the tape 12 is defined as the size intersecting (preferably orthogonal to) the length. Therefore, the size of the tape 12 in the axial direction X is the width of the tape 12, and the size of the tape 12 in the circumferential direction Y is the length of the tape 12. That is, the axial direction X is also the width direction of the tape 12, and the circumferential direction Y is also the length direction of the tape 12. In the following description, the length of the tape 12 is also referred to as "tape length" and the width of the tape 12 is also referred to as "tape width". The end of the tape 12 on the side closer to the feeding portion 13 is called the rear end. The support portion 15 can support the tape 12 whose tape width is smaller than the groove length.

The tape 12 is wound around a cylindrical core 22 (see FIG. 2) so that one of the front and back surfaces is an adhesive surface and the other is a non-adhesive surface, and the adhesive surface is on the inside. The feeding portion 13 includes a holding portion 23 for holding the tape 12 wound around the core 22, and at least one flange 24 (a pair in the present embodiment) having a diameter larger than that of the holding portion 23. At least one of the pair of flanges 24 is detachably provided with respect to the holding portion 23. The holding portion 23 rotatably holds the set tape 12.

The knob forming device 11 includes a second moving mechanism 25 such as a cam for moving the nip roller 14. The nip roller 14 can move between the separation position P1 (see FIG. 2) separated from the support portion 15 and the nip position P2 (see FIG. 7) that presses the tape 12 against the support portion 15 from the adhesive surface side. It is provided. The nip roller 14 is rotatably provided. Therefore, when the support portion 15 rotates or the tape 12 moves while the nip roller 14 is located at the nip position P2, the nip roller 14 rotates while holding the tape 12. The surface of the nip roller 14 is preferably subjected to non-adhesive processing such as knurling.

The support portion 15 is provided below the feeding portion 13 and the nip roller 14 in the vertical direction Z. The support portion 15 includes a drum 26 having a substantially disk shape or a substantially cylindrical shape, and at least one guide 27 (a pair in the present embodiment) provided so as to sandwich the drum 26 from both sides in the axial direction X. Be prepared. The guide 27 has a substantially disk shape or a substantially cylindrical shape, and has a diameter larger than that of the drum 26. Therefore, the guide 27 guides the tape 12 supported by the support surface 15a from both sides in the axial direction X. The groove 20 is formed in the drum 26 along the axial direction X, and both ends of the groove 20 in the axial direction X are closed by the guide 27.

The support portion 15 has a support surface 15a capable of supporting the tape 12 from the non-adhesive surface side, and a non-support surface 15b different from the support surface 15a. The support surface 15a is an outer peripheral surface of the drum 26 located inside the pair of guides 27 in the axial direction X, and is a curved surface along the circumference. The non-supporting surface 15b is the surface of the guide 27.

The support portion 15 is formed with a plurality of suction holes 29 that open in the support surface 15a and at least one (two in this embodiment) suction flow paths 30 to which the plurality of suction holes 29 are connected. There is. A plurality of suction holes 29 formed in one of the circumferential directions Y with the groove 20 interposed therebetween are connected to the first suction flow path 30a, and are formed in the other of the circumferential directions Y in the second suction flow path 30b. A plurality of suction holes 29 are connected. That is, in the support portion 15 in the reference posture, the suction hole 29 located above the groove 20 in the vertical direction Z is connected to the first suction flow path 30a and is located below the groove 20 in the vertical direction Z. The suction hole 29 is connected to the second suction flow path 30b. In the present embodiment, the plurality of suction holes 29 connected to the first suction flow path 30a are designated as the first suction section 31, and the plurality of suction holes 29 connected to the second suction flow path 30b are referred to as the second suction section 32. do.

The knob forming device 11 includes a suction mechanism 33 that sucks the first suction portion 31 and the second suction portion 32 through the suction flow path 30. The suction mechanism 33 includes a suction pump 34 to which the first suction flow path 30a and the second suction flow path 30b are connected, a first suction valve 35 provided in the first suction flow path 30a, and a second suction flow path 30b. The second suction valve 36 provided in the above is provided.

The suction mechanism 33 opens and closes the first suction valve 35 and the second suction valve 36 to change the suction state of the first suction portion 31 and the second suction portion 32. In the following description, opening the first suction valve 35 with the second suction valve 36 closed and applying a negative pressure to the first suction portion 31 is referred to as "suctioning the first suction portion 31". .. Opening the second suction valve 36 with the first suction valve 35 closed to apply a negative pressure to the second suction portion 32 is called "suctioning the second suction portion 32". Opening the first suction valve 35 and the second suction valve 36 to apply a negative pressure to the first suction part 31 and the second suction part 32 means that the first suction part 31 and the second suction part 32 are sucked. ".

As shown in FIG. 2, the drum 26 and the guide 27 have a chord portion 38 that is chipped in a bow shape. In the reference posture, the string portion 38 is located at the lower end of the support portion 15. The drum 26 is formed with a side surface in contact with the guide 27 and an accommodating portion 40 that is open to the chord portion 38 and accommodates the pressing roller 39. Both sides of the accommodating portion 40 in the axial direction X are closed by guides 27. The pressing roller 39 is accommodated in the accommodating portion 40 so that a part thereof protrudes from the chord portion 38, and is rotatably supported by the drum 26 or the guide 27.

The pressing roller 39 is formed of, for example, rubber or silicon having adhesiveness, flexibility, etc., and can hold the tape 12 in contact with the pressing roller 39 from the non-adhesive surface side. The adhesive force of the pressing roller 39 is preferably smaller than the adhesive force of the adhesive surface of the tape 12.

The knob forming device 11 includes a spraying portion 42 capable of blowing air toward the groove 20 formed in the supporting portion 15, and a pressurizing pump 43 connected to the spraying portion 42. The spraying portion 42 is, for example, an air pipe or an air nozzle that ejects air. The spraying portion 42 is formed with a spout 44 for ejecting pressurized air supplied from the pressurizing pump 43.

The knob forming device 11 includes a cutting portion 46 such as a cutter capable of cutting the tape 12, and a third moving mechanism 47 such as a solenoid that moves the cutting portion 46 relative to the support portion 15. The third moving mechanism 47 has a non-cutting position P3 (see FIG. 2) separated from the support portion 15 and a cutting position P4 shown by a two-dot chain line in FIG. 2 for cutting the tape 12 supported by the support portion 15. The cutting portion 46 is moved between them.

The drum 26 and the guide 27 are formed with a recess 49 that receives the cutting portion 46 that moves to the cutting position P4. In the present embodiment, the position where the recess 49 opens on the support surface 15a is the cutting position P4 where the tape 12 is cut by the cutting portion 46, and in the supporting portion 15 in the reference posture, the cutting positions of the supporting portion 15 and the cutting portion 46 are set. P4 matches. The groove 20 and the recess 49 are formed at positions between the first suction portion 31 and the second suction portion 32 in the circumferential direction Y. Specifically, the groove 20 is located between the first suction portion 31 and the cutting position P4, and the cutting position P4 is located between the groove 20 and the second suction portion 32. The first suction portion 31, the groove 20, the recess 49, the second suction portion 32, the chord portion 38, and the pressing roller 39 are located on a semicircle about the drive shaft 16. The groove 20 is located at a position about 90 degrees away from the pressing roller 39 with the drive shaft 16 as the center.

Next, the groove 20 will be described.
As shown in FIG. 3, the groove 20 has a first wall 51 and a second wall 52 facing each other at intervals in the circumferential direction Y. In the circumferential direction Y, the first wall 51 is located at a position farther from the recess 49 than the second wall 52, and the second wall 52 is located between the first wall 51 and the recess 49. That is, in the reference posture, the first wall 51 is located above the second wall 52 in the vertical direction Z. In the present embodiment, the distance between the first wall 51 and the second wall 52 is the groove width.

The spraying portion 42 is provided with the ejection port 44 tilted with respect to the support surface 15a. Therefore, the spraying portion 42 blows air diagonally to the support surface 15a as shown by a white arrow in FIG. Specifically, the spraying portion 42 is provided below the first wall 51 in the vertical direction Z, and blows air toward the first wall 51.

When the cutting portion 46 enters the recess 49 and cuts the tape 12 while the tape 12 is supported by the support surface 15a so as to extend across the groove 20 and the recess 49, the free end of the tape 12 is located at the position of the recess 49. Can be done. Therefore, the spraying portion 42 blows air toward the first wall 51 located on the side opposite to the recess 49 side where the free end of the tape 12 cut in the circumferential direction Y is located.

The groove 20 has a wide portion 53 having a wide groove width and a narrow portion 54 having a narrower groove width than the wide portion 53. The wide portion 53 is located closer to the support surface 15a than the bottom of the groove 20. The narrow portion 54 is located closer to the bottom than the wide portion 53 and communicates with the wide portion 53. The bottom of the groove 20 is a portion located at the position farthest from the support surface 15a.

The first angle θ1 formed by the first wall 51 and the support surface 15a is smaller than the second angle θ2 formed by the second wall 52 and the support surface 15a. The groove width in the wide portion 53 has the widest groove width in the support surface 15a, and becomes narrower as it approaches the drive shaft 16 away from the support surface 15a.

The second wall 52 is formed so as to bend at the boundary between the wide portion 53 and the narrow portion 54. Specifically, the second wall 52 in the wide portion 53 is formed so as to approach the first wall 51 as the distance from the support surface 15a increases, and the second wall 52 in the narrow portion 54 is substantially parallel to the first wall 51. Is formed in. The groove width of the narrow portion 54 is preferably twice or more the thickness of the tape 12 and narrower than the width (diameter) of the communication hole 55 in the circumferential direction Y.

The support portion 15 is formed with a communication hole 55 that opens in the non-support surface 15b and communicates the narrow portion 54 with the outside. A part of the communication hole 55 constitutes the inner surface of the bottom portion of the groove 20, and the inner surface of the bottom portion is a curved surface. The communication hole 55 of the present embodiment is a round hole formed by penetrating the drum 26 and the guide 27 in the axial direction X.

As shown in FIG. 4, the knob forming device 11 includes a control unit 57 that comprehensively controls the drive of each mechanism, and an operation unit 58 such as a touch panel or a button for operating the knob forming device 11. .. The control unit 57 controls the drive of the drive source 17, the first movement mechanism 18, the second movement mechanism 25, the suction mechanism 33, the spraying unit 42, and the third movement mechanism 47 based on the information input from the operation unit 58. do.

Next, with reference to the flowchart shown in FIG. 5, a knob forming method in which the control unit 57 adheres the adhesive surfaces at the tips of the tapes 12 to form a non-adhesive knob 60 (see FIG. 10) will be described. This picking formation processing routine is executed at the timing when the operation unit 58 is operated and the picking forming process is executed. The size of the pick 60 to be formed shall be specified together with the execution command of the pick formation process.

As shown in FIG. 5, the control unit 57 sucks the first suction unit 31 in step S101, and moves the nip roller 14 to the nip position P2 in step S102. The control unit 57 moves the cutting unit 46 to the cutting position P4 in step S103, and moves the cutting unit 46 to the non-cutting position P3 in step S104.

In step S105, the control unit 57 determines whether or not to change the size of the knob 60. When the size of the knob 60 is changed to form a knob 60 having a size different from the reference size (step S105: YES), the control unit 57 moves the nip roller 14 to the separation position P1 in step S106. In step S107, the suction of the first suction unit 31 is released.

In step S108, the control unit 57 determines whether or not to increase the size of the knob 60. When the size of the knob 60 is made larger than the reference size (step S108: YES), in step S109, the control unit 57 rotates the support unit 15 in the clockwise direction. When the size of the knob 60 is made smaller than the reference size (step S108: NO), in step S110, the control unit 57 rotates the support unit 15 in the counterclockwise direction.

The control unit 57 sucks the first suction unit 31 in step S111, and moves the nip roller 14 to the nip position P2 in step S112. In step S113, the control unit 57 blows air from the spray unit 42 toward the groove 20 to end the picking formation process.

When forming the reference size knob 60 in step S105 (step S105: NO), the control unit 57 shifts the process to step S113.
Next, regarding the action of the picking forming device 11, the action when the picking 60 is formed at the tip of the tape 12 will be described.

As shown in FIG. 6, the initial state is a state in which the support portion 15 takes a reference posture, the nip roller 14 is located at the separation position P1, and the cutting portion 46 is located at the non-cutting position P3. In the initial state, the user pulls out the tape 12 set in the feeding portion 13 and causes the support portion 15 to support the non-adhesive surface of the tape 12 through the gap between the nip roller 14 and the support portion 15. At this time, the tip of the tape 12 is pulled out to a position farther from the feeding portion 13 than the recess 49. The state in which the tape 12 extends across the groove 20 and the recess 49 in this way is defined as the state in which the tape 12 is set.

As shown in FIG. 7, when the operation unit 58 is operated with the tape 12 set and the picking formation process is executed, the control unit 57 sucks the first suction unit 31 and sucks the nip roller 14. Move to the nip position P2. The tape 12 is held on the support surface 15a by the first suction portion 31 and the nip roller 14. In this state, the control unit 57 moves the cutting unit 46 to the cutting position P4 to cut the tape 12. As a result, the tip of the tape 12 becomes a free end that is not sucked and niped by the support portion 15.

As shown in FIG. 8, when forming a knob 60 having a size different from the reference size, the control unit 57 moves the cutting portion 46 to the non-cutting position P3 and moves the nip roller 14 to the separating position P1. The suction of the first suction unit 31 is released. That is, the control unit 57 causes the support unit 15 and the tape 12 to slide, and rotates the support unit 15. In other words, the support portion 15 is rotatable about the drive shaft 16 between the time when the cutting portion 46 capable of cutting the tape 12 cuts the tape 12 and the time when the spraying portion 42 blows air.

When forming a large knob 60, the control unit 57 rotates the support unit 15 in the clockwise direction in FIG. 8 so that the groove 20 is separated from the tip of the tape 12. When forming the small knob 60, the control unit 57 rotates the support unit 15 in the counterclockwise direction in FIG. 8 so that the groove 20 approaches the tip of the tape 12. At this time, the larger the angle at which the support portion 15 is rotated in the clockwise direction, the larger the size of the knob 60 formed, and the larger the angle at which the support portion 15 is rotated in the counterclockwise direction, the smaller the size of the knob 60 formed. Become. After rotating the support unit 15, the control unit 57 sucks the first suction unit 31 and moves the nip roller 14 to the nip position P2 (see FIG. 9).

As shown in FIG. 9, when forming the reference size knob 60, the control unit 57 moves the cutting unit 46 from the state shown in FIG. 7 to the non-cutting position P3.
As shown in FIG. 10, the control unit 57 blows air from the spraying unit 42 toward the groove 20 covered with the tape 12 for a certain period of time (for example, 1 second), and pushes the tape 12 into the groove 20. At this time, since the spraying portion 42 blows air toward the first wall 51, the tip of the tape 12 having a free end is drawn into the groove 20 while being supported by the first wall 51. Further, the tape 12 is supported by the guide 27 on both sides in the axial direction X. The air is deformed so as to press the tape 12 against the inner surface of the communication hole 55 formed at the bottom of the groove 20, and is discharged to the outside through the communication hole 55. As a result, in the tape 12, the adhesive surfaces of the portions located in the narrow portion 54 are stuck together to form the knob 60.

Next, the operation when the tape 12 on which the knob 60 is formed is attached to the work 61 (see FIG. 14) will be described.
As shown in FIG. 11, the control unit 57 releases the suction of the first suction unit 31 and moves the nip roller 14 to the separation position P1. That is, the control unit 57 puts the tape 12 in a state of sliding with respect to the support surface 15a, rotates the support unit 15 by about 270 degrees in the counterclockwise direction, and causes the knob 60 and the pressing roller 39 formed at the tip of the tape 12 to slide. Align the position of. As a result, the knob 60 is held by the pressing roller 39.

As shown in FIG. 12, the control unit 57 sucks the second suction unit 32 and moves the nip roller 14 to the nip position P2.
As shown in FIG. 13, the control unit 57 rotates the support unit 15 in the counterclockwise direction by about 90 degrees, and sets the pressing roller 39 in the reference posture in which the pressing roller 39 is located below the vertical direction Z of the drive shaft 16. Since the tip of the tape 12 is held by the pressing roller 39 and is attracted to the second suction portion 32, the tape 12 is pulled out from the feeding portion 13 and supported by the support surface 15a.

As shown in FIG. 14, the control unit 57 sucks the first suction unit 31 and the second suction unit 32, and moves the nip roller 14 to the separation position P1.
As shown in FIGS. 14 and 15, the control unit 57 drives the first moving mechanism 18 and supports the support unit 15 so that the tape 12 is located between the work 61 to which the tape 12 is attached and the pressing roller 39. While moving, the tape 12 is pressed against the work 61 by the pressing roller 39. The first moving mechanism 18 may integrally move the feeding portion 13, the nip roller 14, the spraying portion 42, and the cutting portion 46 together with the supporting portion 15.

As shown in FIG. 16, the control unit 57 releases the suction of the first suction unit 31 and the second suction unit 32, and moves the support portion 15 along the work 61 in a state where the tape 12 slides with respect to the support portion 15. It is moved in the sticking direction A orthogonal to the axial direction X. For example, when the sticking surface of the work 61 to which the tape 12 is stuck is horizontal, the axial direction X and the sticking direction A are along the horizontal plane. When the support portion 15 moves, the pressing roller 39 rotates while pressing the tape 12 against the work 61. The tape 12 whose tip is attached to the work 61 is pulled out from the feeding portion 13 and attached to the work 61.

As shown in FIG. 17, the control unit 57 stops the movement of the support unit 15 and sucks the first suction unit 31 and the second suction unit 32. The control unit 57 cuts the tape 12 by moving the cutting unit 46 to the cutting position P4 while the tape 12 is attracted to the support unit 15. That is, the cutting portion 46 forms the rear end of the tape 12 that is attracted to the second suction portion 32 and the tip of the tape 12 that is attracted to the first suction portion 31.

As shown in FIG. 18, the control unit 57 moves the cutting unit 46 to the non-cutting position P3 and releases the suction of the second suction unit 32. In this state, the control unit 57 moves the support unit 15 again along the work 61 in the sticking direction A.

As shown in FIG. 19, when the support portion 15 moves to a position where the pressing roller 39 presses the rear end of the tape 12 against the work 61, the control unit 57 stops the support portion 15 and moves the nip roller 14 to the nip position P2. Move to.

As shown in FIG. 20, the control unit 57 raises the support unit 15 to separate the pressing roller 39 from the work 61.
As shown in FIG. 21, the control unit 57 blows air from the spraying unit 42 toward the groove 20 covered with the tape 12, pushes the tape 12 into the groove 20, and forms a knob 60 at the tip of the tape 12. do. After that, the control unit 57 repeatedly executes the operations shown in FIGS. 11 to 14, and causes the pressing roller 39 to hold the knob 60 so that the support unit 15 is in the reference posture.

According to the above embodiment, the following effects can be obtained.
(1) When the spraying portion 42 blows air toward the groove 20 through the tape 12 supported on the support surface 15a so as to extend across the groove 20, the tape 12 is curved and pushed into the groove 20. Since the wide portion 53 located on the support surface 15a side has a wide groove width, the tape 12 can be easily pushed into the groove 20. Since the narrow portion 54 located at the back has a narrower groove width than the wide portion 53, the tape 12 is in a state where the portion connected to the portion pushed into the groove 20 in the length direction is supported by the support portion 15. , The adhesive surfaces of the pushed portion are stuck to each other to form a knob 60. Therefore, the variation in the shape of the knob 60 can be reduced.

(2) Since the support portion 15 is formed with a communication hole 55 that opens in the non-support surface 15b, the air blown by the spray portion 42 can be discharged to the outside through the communication hole 55. Therefore, the air blown into the groove 20 does not bounce back from the back of the groove 20 to the inlet side, and the blown air stabilizes the behavior of the tape 12 forming the knob 60 at the back of the groove 20. be able to.

(3) Since a part of the communication hole 55 constitutes the inner surface of the bottom portion of the groove 20, the tape 12 pushed into the back of the groove 20 is deformed along the inner surface of the bottom portion which is a part of the communication hole 55. In this case, since the inner surface of the bottom of the groove 20 is a curved surface, the tape 12 can be easily aligned with the inner surface of the bottom.

(4) The spraying portion 42 blows air toward a wall located at a position away from the free end of the cut tape 12. Therefore, when the tape 12 is curved and pushed into the groove 20 by blowing air after the tape 12 is cut, the knob 60 can be formed by pulling the free end of the cut tape 12 into the groove 20. Therefore, the behavior of the tape 12 can be stabilized, and the variation in the shape of the knob 60 can be further reduced.

(5) When the support portion 15 rotates after the cutting portion 46 cuts the tape 12, the groove 20 moves relative to the end of the tape 12. Therefore, the size of the knob 60 formed can be changed.

(6) The tape 12 is provided with a nip roller 14 that presses the tape 12 against the support portion 15, a pressing roller 39 that is housed in the drum 26 of the support portion 15 and holds the tape 12, and a guide 27. The behavior can be stabilized.

(7) For example, in a device for forming a knob on a tape by mechanical movement, a complicated mechanism is required, and there is a possibility that the mechanism may break down. In that respect, since the picking forming device 11 blows air to form the picking 60, the picking 60 can be formed with a simple structure.

The above embodiment may be modified as in the modification shown below. The above embodiment and the following modified example may be arbitrarily combined.
A plurality of grooves 20 may be formed in the support portion 15. The knob forming device 11 may move or rotate the spraying portion 42 to blow air into each of the plurality of grooves 20, or may include a plurality of spraying portions 42. For example, as shown in FIG. 22, the support portion 15 may be formed with the first groove 20a and the second groove 20b so as to sandwich the recess 49 in the circumferential direction Y.

-As shown in FIG. 22, the second wall 52 may be formed in a staircase pattern. That is, the groove width of the first groove 20a may be gradually narrowed from the wide portion 53 located on the support surface 15a side to the narrow portion 54 located on the bottom side.

As shown in FIG. 22, in the support portion 15 in the reference posture, the first wall 51 may be located below the second wall 52 in the vertical direction Z. That is, the second groove 20b is a first wall 51 located at a position away from the recess 49 and forming a first angle θ1 with the support surface 15a, and a second wall 51 located near the recess 49 and forming a support surface 15a. It has a second wall 52 whose angle θ2 is larger than the first angle θ1. When air is blown from the spraying portion 42 onto the cut tape 12, a knob 60 can be formed at the tip of the tape 12 in the first groove 20a, and a knob can be formed at the rear end of the tape 12 in the second groove 20b.

The first groove 20a may not be formed on the support portion 15, but only the second groove 20b may be formed. For example, the second groove 20b may be formed at a position between the first suction portion 31 and the cutting position P4.
The support portion 15 may form a groove 20 at a position between the cutting position P4 and the second suction portion 32.

The groove length of the groove 20 may be equal to or less than the maximum groove width.
The picking forming device 11 may be configured not to include the cutting portion 46.
The cutting portion 46 may cut the tape 12 while the spraying portion 42 is blowing air on the tape 12. For example, the cutting portion 46 may cut the tape 12 in a state where the spraying portion 42 blows air onto the tape 12 covering the second groove 20b located below the cutting position P4 in the vertical direction Z.

-It is not necessary to form the recess 49 in the support portion 15. For example, the cutting portion 46 may be a slide cutter that cuts the tape 12 by moving the blade along the tape 12. The cutting portion 46 may be a scissors that sandwiches the tape 12 from both the front and back sides and cuts the tape 12.

-The support portion 15 may be configured not to include the guide 27.
The support portion 15 may be configured not to include the pressing roller 39. For example, the control unit 57 may move the support unit 15 so as to press the tape 12 attracted to the first suction unit 31 against the work 61.

The picking forming device 11 may not be provided with the first moving mechanism 18 for moving the support portion 15.
-The support surface 15a may be flat.

The direction in which the support portion 15 is rotated between the time when the cutting portion 46 cuts the tape 12 and the time when the spraying portion 42 blows air is the same regardless of whether the size of the knob 60 is increased or decreased. May be good. That is, the control unit 57 may rotate the support unit 15 in the counterclockwise direction by 270 degrees or more and less than 360 degrees (for example, 350 degrees) to form a knob 60 larger than the reference size.

The support portion 15 may be made non-rotatable about the drive shaft 16 between the time when the cutting portion 46 cuts the tape 12 and the time when the spraying portion 42 blows air.
The spraying portion 42 blows air toward the second wall 52, which is the side on which the tip of the cut tape 12 is located, of the first wall 51 and the second wall 52 forming the inner surface of the groove 20. May be good. The spraying portion 42 may blow air perpendicularly to the support surface 15a.

The communication hole 55 may be opened in the groove 20 at a position different from the bottom. That is, the communication hole 55 does not have to form the inner surface of the bottom of the groove 20.
The inner surface of the bottom of the groove 20 may be a flat surface.

-It is not necessary to form the communication hole 55 in the support portion 15.
The communication hole 55 may communicate the wide portion 53 with the outside of the groove 20.
The communication hole 55 may be opened in the support surface 15a. In this case, as shown in FIG. 21, when air is blown onto the tape 12 covering the groove 20 to form the knob 60, it is preferable to open the communication hole 55 in the region where the tape 12 is not located.

The pick forming device 11 may be a device for forming a knob on a masking tape attached to a material at the time of painting or the like.

11 ... Picking device, 12 ... Tape, 14 ... Nip roller, 15 ... Support, 15a ... Support surface, 15b ... Non-support surface, 16 ... Drive shaft (an example of shaft), 20 ... Groove, 26 ... Drum, 27 ... guide, 39 ... pressing roller, 40 ... accommodating part, 42 ... spraying part, 46 ... cutting part, 51 ... first wall, 52 ... second wall, 53 ... wide part, 54 ... narrow part, 55 ... communication hole ..

Claims (6)

A support portion having a support surface capable of supporting the tape having one of the front and back surfaces as an adhesive surface and the other as a non-adhesive surface from the non-adhesive surface side.
A spraying part that can blow air to the support part,
A suction part that opens to the support surface and a suction mechanism that sucks the suction part,
With
The support portion has a drum having a substantially disk shape or a substantially cylindrical shape, and the support surface is an outer peripheral surface of the drum.
The support portion is formed with a groove recessed from the support surface so that the tape can be bent and accepted.
The groove communicates with a wide portion having a wide groove width located closer to the support surface than the bottom portion of the groove and communicating with the wide portion located closer to the bottom portion than the wide portion. It has a narrow portion with a groove width narrower than the wide portion,
The spraying portion is a knob forming device that blows the air toward the groove. The support portion has a non-support surface different from the support surface and has a non-support surface.
The knob forming apparatus according to claim 1, wherein the support portion is formed with a communication hole that opens in the non-support surface and communicates the narrow portion with the outside. A part of the communication hole constitutes the inner surface of the bottom portion.
The knob forming device according to claim 2, wherein the inner surface of the bottom is a curved surface. The spray portion is a side of the wall forming the inner surface of the groove, which is opposite to the side where the free end of the tape cut in a state of being supported by the support surface so as to extend across the groove is located. The knob forming apparatus according to any one of claims 1 to 3, wherein the air is blown toward a wall located at. Of claims 1 to 4, the support portion is rotatable about an axis between the time when the cutting portion capable of cutting the tape cuts the tape and the time when the spraying portion blows the air. The picking forming apparatus according to any one item. A nip roller capable of pressing the tape against the support portion from the adhesive surface side, and
With a pressing roller that can hold the tape from the non-adhesive surface side,
With
The support portion
With the drum
A guide with a diameter larger than the drum and
Have a,
The drum, the pressing knob forming apparatus according to any one of claims 1 to 5 containing portion that is formed to accommodate the roller.

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