JPH072494B2 - Adhesive sheet pasting device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a device for peeling an adhesive sheet from a mount and attaching it to another member.

[Prior Art] A head having a suction surface formed by forming a plurality of suction holes on a cylindrical surface or a circular arc surface at intervals is moved while contacting the adhesive sheet attached to a mount, and the head is attached to the head. After the sheet is adsorbed and held, the device for adhering the adhesive sheet to another member by releasing the adsorbent is a label sticking machine, which is used as a practical machine 63-57208, 63-46517, 63-18660.
It is disclosed and known in Japanese Utility Model Publication No. 63-3911.

However, each of the above publications does not disclose the timing of suction and release of suction of a plurality of suction holes, and some suction holes are sucked simultaneously in all suction holes. Therefore, there is also a suction hole that starts suction before coming into contact with the label.

On the other hand, JP-A-62-208338 discloses a device in which a label is sucked and conveyed by a drum, an adhesive is applied to the label during the conveyance, and then the label is attached to a work. According to this device, a large number of suction holes are formed on the peripheral surface of the drum,
Each suction hole communicates with a vacuum path opened at each position in the circumferential direction on the side surface of the drum. On the other hand, a fixed portion that rotatably supports this drum is provided with a vacuum chamber that is capable of communicating with a vacuum path that opens to the side surface of the drum and that is formed over a predetermined region in the circumferential direction. . Therefore, by sequentially setting the opening of the vacuum path to the position facing the vacuum chamber by the rotation of the drum, it becomes possible to perform suction in the suction holes in the order of the rotation advancing direction of the drum peripheral surface.

[Problems to be Solved by the Invention] When the present inventor develops a device for peeling an adhesive sheet, which does not have a constant width and whose shape changes two-dimensionally, from a mount and attaches it to another work. , It has been confirmed that a device worthy of practical application cannot be developed without changing the above-mentioned conventional technique.

In the case of adhesive sheets having the same width, the advancing direction of the drum and the extending direction of the adhesive sheet always coincide with each other, so that the force for winding the adhesive sheet around the drum peripheral surface can always be secured as the peeling force. Since such an inertial force acts as a peeling force, it is not necessary to increase the suction force so much. However, in the case of an adhesive sheet whose shape changes two-dimensionally, the extending direction of the sheet may not coincide with the drum advancing direction, and the sheet-like adhesive sheet having low rigidity depending on the winding force of the drum. Will be twisted and deformed.

As an adhesive sheet whose shape changes two-dimensionally, for example, in the case of an arc-shaped label disclosed in Japanese Patent Publication No. Sho 61-3686, the two-dimensional change rate is uniform according to a constant curvature and Since the change is continuous, the twisting deformation described above does not occur even if the suction holes are arranged at equal intervals as in the case of the band-shaped label having a constant width. This problem occurs remarkably when the adhesive sheet has a discontinuous change in which the adhesive sheet is bent substantially linearly in a direction intersecting with the longitudinal direction in the middle of the longitudinal direction. Further, this problem does not occur in a wide sheet in which two or more suction holes can face each other in the sheet width direction as in Japanese Patent Publication No. 61-3686, and only one sheet is sucked in the sheet width direction. It occurs remarkably in the case of a narrow and weakly rigid strip-shaped sheet in which the holes cannot be faced.

According to the conventional labeling machine, only a rectangular label is assumed, so such a situation cannot be predicted, and no improvement for it has been found.

Such a problem cannot be solved by simply applying the technology of JP-A-62-208338 to the peeling / pasting device for the adhesive sheet and vacuuming on and adsorbing in the order of arrangement of the drum in the direction of rotation. It was found that the points must be improved or the reliance on the inertial force of the drum as the peeling force must be reduced to increase the momentary suction force itself at the time of peeling.

Therefore, the object of the present invention is to improve the adsorption point, even if the adhesive sheet has a discontinuous two-dimensional change by linearly bending in the middle of the longitudinal direction. An object of the present invention is to provide a device for attaching an adhesive sheet that can be peeled off while retaining its original shape and adsorbed to the head side.

Another object of the present invention is to increase the momentary suction force at the time of peeling without lowering the capacity of the vacuum pump and reduce the dependence on the inertial force of the head as the peeling force, thereby reducing the adhesive sheet. An object of the present invention is to provide an adhesive sheet sticking device capable of adsorbing to a head according to its shape.

[Means for Solving the Problems] According to the invention of claim 1, with respect to a narrow strip-shaped adhesive sheet attached to a mount, a cylindrical surface or an arc surface is used as a suction surface, and the suction surfaces are arranged in a line at intervals. A head having a plurality of opening suction holes is moved in contact with each other, and a plurality of valves that respectively interrupt vacuum paths leading to the suction holes are sequentially opened to adsorb and hold the adhesive sheet on the head, and then the plurality of valves Is a device for adhering the adhesive sheet to another member by sequentially closing the adhesive sheet, wherein the adhesive sheet has a portion that is bent substantially linearly in a direction intersecting the longitudinal direction in the middle of the longitudinal direction thereof. By having it, the shape changes two-dimensionally, and the suction holes are opened on the suction surface at positions corresponding to the bent portions of the adhesive sheet.

According to a second aspect of the present invention, a head having a plurality of suction holes having a cylindrical surface or a circular arc surface as a suction surface and having a plurality of suction holes opened to the suction surface is moved in contact with the adhesive sheet attached to the mount, and each suction hole is moved to each suction hole. A device for adhering the adhesive sheet to the head by adsorbing and holding the adhesive sheet on the head by sequentially opening a plurality of valves that respectively connect and disconnect the communicating vacuum paths, and adhering the adhesive sheet to another member. The plurality of valves are set to an open state, a closed state, and a half-open state which is an intermediate state between them, and a drive means for driving the plurality of valves is provided. When the suction hole of the head faces the adhesive sheet and the adhesive sheet is peeled off from the mount by suction, the valve corresponding to the suction hole is opened from the closed state. Driven, after the adhesive sheet is sucked and held to the head, the adhesive sheet so that the suction force sufficient to adsorb maintain, and drives the valve from the open state to the half-open state.

[Operation] In the invention of claim 1, the rigidity is small enough to allow only one suction hole to face each other in the sheet width direction, and the longitudinal The target is an adhesive sheet having a two-dimensionally changing shape that bends substantially linearly in a direction intersecting the direction. When adsorbing such an adhesive sheet to the head, the bent portion of the adhesive sheet is always adsorbed by facing the adsorption hole of the head. Therefore, even if the sheet extends in the longitudinal direction of the sheet, that is, in the direction intersecting with the moving direction of the head, the start point and the end point extending in the intersecting direction are always adsorbed, and the sheet with low rigidity is not twisted and deformed, The adhesive sheet can be adsorbed to the head side while maintaining its original shape and peeled off from the mount.

According to the second aspect of the present invention, after the adhesive sheet is peeled off from the mount and fully adsorbed to the head by fully opening the valve, the valve is in a half-opened state. As the suction force, the force required for peeling off the adhesive sheet from the backing sheet is the most necessary, and the force for sucking and holding the adhesive sheet on the head after that is small. The suction force reduced by opening this valve in a half-opened state can be used for suction in the suction holes that are driven after that, and even if the vacuum pump's capacity is not increased, it is necessary to remove the suction force in each suction hole when peeling. The instantaneous suction power can be increased.

In this way, the momentary suction force at the time of peeling at each suction hole is increased, so that the peeling force can be less dependent on the inertial force at the time of moving the head, and the peeling force can be changed in a two-dimensional manner. Even an adhesive sheet can prevent twisting deformation.
Further, the invention of claim 2 has an effect superior to that of the conventional labeling machine in that the instantaneous suction force can be increased without improving the performance of the vacuum pump, so that the shape does not change two-dimensionally. It can be applied to labels.

[Example] An example of an adhesive sheet sticking apparatus to which the present invention is applied will be specifically described below with reference to the drawings.

First, the adhesive sheet 10 will be described with reference to FIG. 4. The adhesive sheet 10 is, for example, a urethane foam seal, and is as shown in FIG. 4B which is a sectional view taken along the line I-I of FIG. The double-sided adhesive tape 16 is fixed to the back side of the flexible urethane foam 12 via the base material 14,
The adhesive sheet 10 is attached and supported on a mount 18 at predetermined intervals, as shown in FIG. The mount 18 has holes 18a penetrating the front and back surfaces. By inserting a pin or the like into the hole 18a and driving it, step feed can be performed in the arrow direction shown in FIG. .

The outer shape of the adhesive sheet 10 has a shape as shown in FIG. 3A, and one end side thereof is a peeling start end 10a and the other end side is a peeling end end 10b. further,
This adhesive sheet 10 is not linear, but has a shape that is bent on a two-dimensional plane as shown in the figure, and the four points A, B, C, and D shown in FIG. It is a two-dimensional shape change position.

The sticking apparatus according to this embodiment peels off the adhesive sheet 10 shown in FIG. 4 from the mount 18 and sticks it to the area shown by the chain line of the mounting bracket 1 shown in FIG. The mounting bracket 1 is used in a copying machine and is used in a cleaning device for cleaning the residual toner on the photosensitive drum. The adhesive sheet 10 scatters the toner removed from the photosensitive drum to the outside. It functions as a sealing material to prevent the occurrence of

Next, a sticking device for sticking the adhesive sheet 10 will be described with reference to FIGS. 1 to 3.

The rotary head 20 is formed in a cylindrical shape having a cylindrical surface 22, and has a contour along the outer shape of the adhesive sheet 10 on the cylindrical surface 22 and is a groove shallower than the plate thickness t of the adhesive sheet 10. A groove 24 having a depth H is formed. As the groove 24, as shown in FIG. 1, the cylindrical surface 22 of the rotary head 20 is cut, or the groove 24 is formed on the cylindrical surface 22.
An elastic member, such as natural rubber, which has been perforated according to the above shape may be attached.

The bottom surface of the groove 24 in the rotary head 20 acts as a suction surface 26, and the suction surface 26 is provided with a plurality of suction holes 30 arranged at intervals along the circumferential direction thereof. . Incidentally, of the suction surface 26 where the suction holes 30 are formed, the portion where the suction holes 30 for sucking the peeling start end portion 10a of the adhesive sheet 10 is formed is inclined as shown in FIG. 2 (B). Configured as surface 28.

As shown in FIG. 1, the suction holes 30 are formed in the rotary head 20.
Is communicated with a vacuum path 31 provided along the radial direction of the rotary head 20, and further communicates with a vacuum port 32 provided along the central axis of the rotary head 20. A spool valve 40 is arranged in the middle of each vacuum path 31. That is, each vacuum path 31
A plurality of guide holes 42 are formed in parallel with the rotation axis of the rotary head 20 so as to be orthogonal to, and the operation pins 44 are inserted and arranged in the respective guide holes 42. This operating pin 44 is
A suction groove 46 that can communicate with the vacuum path 31 is provided at an intermediate position thereof, and O-ring grooves 48a, 48a in which O-rings 48b can be arranged are formed on both sides thereof. The operating pin 44 is
It is movable along the guide hole 42 by an external force, and has a length protruding at least from both ends of the guide hole 42.

As shown in FIG. 1, the rotary head 20 is rotatably supported by rotary support portions 52, 52 formed on a U-shaped frame 50, and the rotary head 20 is supported by the power of a drive source (not shown). It can be rotated in the forward and reverse directions. Further, a peeling drive cam 54 and a sticking drive cam 56 are provided on the inner surfaces of the frame 50 which face each other. The peeling drive cam 54 is configured as a beveled cam, and has a beveled surface 54a and a flat surface 54b that come into contact with the tip of the actuating pin 44, and a back surface 54c that also serves as a stopper for the actuating pin 44. The pasting drive cam 56 is also configured as a sloped cam, and has a sloped surface 56a, a flat surface 56b, and a back surface 56c.
a and 56a are parallel.

Although the peeling drive cam 54 and the sticking drive cam 56 are located substantially opposite to each other, the slope 54 of the peeling drive cam 54
The point a at which the height of a is the lowest is set at a position deviated from the back surface 54c of the sticking drive cam 56 in the rotational direction of the arrow A in FIG. Further, the position where the suction groove 46 of the operating pin 44 is in complete communication with the vacuum path 31 is the fully open position P in the middle of the slope 54a of the peeling drive cam 54, and therefore the operating pin 44 is driven to peel off. Cam 54
When it reaches the flat surface 54b of the spool valve, the positional relationship between the vacuum path 31 and the suction groove 46 is displaced as shown in FIG.
40 is set to half open. The half open state means a position between the fully open state and the fully closed state, and can be set as desired between these positions.

The rotational driving direction of the rotary head 20 is the direction of arrow A shown in FIG. 3 during the peeling drive, and the direction of arrow B in the drawing during the sticking drive. At this time, before performing the peeling drive, the operation pin 44 in FIG.
It is designed to project to the right more than the rotary head
As 20 is rotationally driven in the direction of arrow A, each actuating pin 44 shifts to the left by the slope 54a of the peeling drive cam 54, and at the position set when it comes into contact with the plane 54b,
After that, the state of the operating pin 44 will be maintained. At the time of peeling drive, the rotary head 20 makes almost one rotation,
The rotation drive is stopped at the position where the actuating pin 44 that is first driven to project to the left comes into contact with the back surface 54c of the sticking drive cam 56. On the other hand, during the sticking drive, the rotary head 20 is rotated in the direction of the arrow B in FIG. 3, so that the operating pins 44 are sequentially moved to the right in FIG. 1 by the slope 56a and the flat surface 56b of the sticking drive cam 56. It will be driven to project.

FIG. 6 shows an entire mechanism for driving the peeling and sticking of the adhesive sheet 10. At the time of peeling driving, the rotary head 20 rotates in the direction of arrow A while The rotary head 20 is linearly moved together with the frame 50 in the direction toward the right in FIG. After that, the rotation drive and the linear movement are stopped at the position shown in the figure, and the rotary head 20 and the frame 50 are integrally moved upward toward the position. Further, the rotary head 20 and the frame 50 are linearly moved toward a position from this position, and the rotary head 20 is moved downward toward the subsequent position, so that the mounting bracket 1 supported by the work fixing portion 2
The rotary head 20 is stopped at a position on the one end side of. Further, while the rotary head 20 is rotationally driven in the direction of arrow B in the figure, the rotary head 20 is moved straight to the left, and the above-mentioned each drive is stopped at the position after being moved in the width direction of the mounting bracket 1. After that, the position is returned to and the next adhesive sheet 10 is driven.

Next, the peeling operation and the sticking operation of the adhesive sheet 10 using the apparatus of this embodiment will be described.

First, the frame 50 that supports the rotary head 20 is set to the position shown in FIG. At this time, the formation position of the slope 28 formed at one end of the suction surface 26 of the rotary head 20 is
It is set at a position corresponding to the peeling start end 10a of the adhesive sheet 10. Thereafter, while rotating the rotary head 10 in the direction of arrow A, the rotary head 20 is linearly moved toward the position from the position shown in FIG.

Here, each actuating pin 44 supported by the rotary head 20 is set to a position projecting to the right of the guide hole 42 in FIGS. 1 and 3 before the peeling drive is started. . Therefore, the suction groove 46 formed in the operation pin 44 is located to the right of the suction hole 30, and the spool valve 40 is fully closed.

When the rotary head 20 is rotationally driven in the direction of the arrow A in such a state, the operating pin 44 protruding rightward from the guide hole 42.
The tip of the drive cam 54 is peeled off one after another
It will come into contact with b. Then, the guide hole 42
The actuating pin 44 protruding further to the right is the peeling drive cam.
The slope 54a at 54 gradually moves to the left, and the movement of the operating pin 44 to the left ends at the position where it abuts the plane 54b. At this time, as the operating pin 44 moves to the left, the suction groove formed in the operating pin 44
46 is in communication with suction hole 30 and the peeling drive cam
When the operating pin 44 reaches the fully open position P on the inclined surface 54a of 54, the suction groove 56 and the suction hole 30 are completely communicated, and the spool valve 40 is fully opened. The timing at which the fully open state is achieved is before and after the rotary head 20 contacts the adhesive sheet 10, and in this embodiment, the fully open state of the spool valve 40 is achieved immediately before the contact. As a result, the adhesive sheet 10 is peeled off from the mount 18 with the maximum suction force. When the rotary head 20 further rotates, the operating pin 44 moves further leftward, so that the position of the suction groove 46 shifts leftward with respect to the suction hole 30, and the spool valve 40 is set to a half open state. Become. When the spool valve 40 in the rotary head 20 is fully opened, it is adsorbed to the suction surface 26 of the rotary head 20 attached on the mount 18, but the spool valve 40 is half-opened thereafter. Is due to the following reasons. That is, since the suction pressure of the vacuum pump connected to the vacuum port 32 is constant, when the plurality of spool valves 40 are sequentially opened by the above action, the suction force in each suction hole 30 gradually increases. Will be reduced to. Therefore, in the latter half of the rotation of the rotary head 20 in the direction A, the suction force for peeling off the adhesive sheet 10 from the mount 18 may not be obtained in some cases. Must be raised. According to this embodiment, the spool valve 40
After the adhesive sheet 10 is peeled off from the mount 18 by a predetermined peeling force by fully opening the adhesive sheet 10
The spool valve 50 is set to a half-opened state so that a sufficient suction force can be obtained for suction-holding by the suction surface 26 of the rotary head 20. As a result, it is possible to always ensure a predetermined peeling force in each of the suction holes 30 formed in the suction surface 26 without increasing the capacity of the vacuum pump.

Further, in this embodiment, the peeling start end 10 of the adhesive sheet 10 is
The suction surface 26 for peeling a is configured as a slope 28. By providing such a slope 28, the rotary head 20
Even if an external force that tries to shift the suction position is generated by rotating, since the slope 28 acts so as to become an obstacle, once the adhesive sheet 10 is suctioned on the slope 28, the position after this It becomes possible to suck and hold without causing a shift.

In this way, the peeling start end of the adhesive sheet 10
By rotating the rotary head 20 in the direction of the arrow A in the drawing with 10a sucked at a predetermined position, the adhesive sheet 10 is sucked and held on the suction surface 26 of the rotary head 20 as shown in FIG. become. Further, the state of the spool valve 40 in the middle of the peeling process is as schematically shown in FIG. 8, and it is in a fully closed state before contacting the adhesive sheet 10, and becomes a fully open state by contacting it, and a latter half open state thereof. Will be set to.

In this embodiment, in order to secure the above suction state, a groove 24 is formed on the cylindrical surface 22 of the rotary head 20 so as to match the contour of the adhesive sheet 10, and the adhesive sheet 10 is housed in this groove 24. Is configured. As a result, the groove 24 serves as a positioning guide when sucking and holding the adhesive sheet 10, and also serves to enhance the suction effect. That is, as shown in FIG. 4 (B), the adhesive sheet 10 in this embodiment is composed of urethane foam 12, a base material 14 and a double-sided adhesive tape 16, but the double-sided adhesive tape 16 and the base material 14 are Both have air permeability, and when used as a liquid sealing material even as the urethane foam 12, they do not have air permeability as closed cells, but the urethane foam 12 used as a toner sealing material as in this embodiment is It is configured as semi-closed cells or open cells and has air permeability. Therefore, when the groove 24 comes into contact with the end surface of the adhesive sheet 10, it acts as a measure against air leakage, and the suction force can be increased.

Further, as described above, the suction force in the rotary head 20 can be increased by setting the spool valve 40 to the half-open state after the fully-open state or forming the groove 24. Head 20 is adhesive sheet 10
By opening all the spool valves 40 immediately before contacting with, the suction force at each suction hole can be increased as compared with the case where all the spool valves 40 are opened at once. Incidentally, the inventor of the present invention need only about 600 mHg as the force for peeling the adhesive sheet 10 from the mount 18 as shown in FIG. 4, even if the peeling force increases due to aging of the adhesive sheet 10. It was confirmed that the peeling force can be secured by the above-mentioned device.

Further, in this embodiment, the adhesive sheet 10 is applied to the one having a two-dimensional shape changed as shown in FIG. 4 (A). In peeling off the adhesive sheet 10 whose shape is two-dimensionally changed, the suction holes 30 of the rotary head 20 are set at the two-dimensional shape change positions A to D shown in FIG.
This can be dealt with by arranging in a corresponding manner. That is, with respect to the rotation direction of the rotary head 20, the direction extending from the two-dimensional shape change position point A to point B is a direction intersecting with this direction.
This is because the adhesive sheet 10 having a high flexibility is twisted and deformed if it is not adsorbed at the points, and the adsorption sheet 26 of the rotary head 20 cannot be adsorbed correctly. This two-dimensional shape change A ~
The suction holes 30 do not necessarily have to be provided at positions other than the point D, but the suction holes 30 may be arranged at predetermined intervals in order to increase the certainty of suction.

The peeling operation by rotating the rotary head 20 in the direction A is completed by rotating the rotary head 20 almost once, that is, the actuating pin 44 that is first protruded leftward is attached to the sticking drive cam.
The rotation drive is stopped when the back surface 56c of 56 is contacted. After that, this rotary head 20 and frame 50
Is integrally moved from the position shown in FIG. 6 and stopped at a position in contact with one end position in the longitudinal direction of the mounting member 1 to which the adhesive sheet 10 is to be attached. Thereafter, the rotary head 20 is rotationally driven in the direction B opposite to the direction of the arrow A, and the rotary head 20 is linearly moved toward the other end while being in contact with the mounting member 1. During such a pasting operation, the operation pin 44 protruding leftward in FIGS. 1 and 3 by the action of the pasting drive cam 56.
Is sequentially released in the right direction to release the suction. At this time, as the spool valve 40, the operating pin
44 moves to the right as it abuts the slope 54a of the sticking drive cam 56, and the half open state is set to the fully open position at the fully open position P thereof. afterwards,
When the operating pin 44 moves further to the right due to the slope 56a, the spool valve 40 is fully closed and the suction hole 30
The suction operation via the is released, and the adhesive sheet 10 can be bonded to the front surface side of the mounting member 1. At this time, since the adhesive sheet 10 has a plate thickness t larger than the groove depth H in the groove 24 of the rotary head 20, the rotary head 20 is pressed toward the mounting metal fitting 1 side by a predetermined pressing force. It becomes possible to smoothly carry out the bonding operation. As shown in FIG. 9, each of the spool valves 40 is in a half-open state before the rotary head 20 is in contact with the mounting member 1 and is in a fully open state in a contact state as shown in FIG. The adhesive sheet 10 is set and then fully closed, so that the adhesive sheet 10 can be sequentially adhered to the mounting member 1.

The present invention is not limited to the above embodiment, and various modifications can be made within the scope of the present invention.

For example, the valve for connecting and disconnecting the vacuum path 31 communicating with each suction hole 30 is not limited to the spool valve 40 as in the above embodiment, but a vacuum valve such as a butterfly valve 60 as shown in principle in FIG. Various valves that can connect and disconnect the path 31 can be adopted. Further, as the drive means for opening and closing the valve at a timing before and after the corresponding suction holes 30 come into contact with the adhesive sheet 10, the one using the cam as in the above embodiment can be realized at low cost. Other mechanical components that can open and close the valve depending on the driving force of the above, or those that open and close the valve based on an electric signal may be used.
When a cam is used, the operating pin 44 is biased in one direction by a biasing member such as a coil spring, and the cam is arranged along the movement locus of the operating pin 44. A configuration can also be adopted.

Further, in this embodiment, when performing the peeling operation and the sticking operation using the rotary head 20, the rotary head 20
However, the rotary head 20 may be driven to rotate in the same direction both during peeling and pasting. The rotary head 20 having a smaller diameter is superior in that the peeling displacement force after contacting the adhesive sheet 10 is large, but in the present embodiment, the circumferential length of the cylindrical surface 22 of the rotary head 20 is large. In the determination of, in addition to the entire length of the adhesive sheet 10, the peeling drive cam 54 and the sticking drive cam 56 is configured to have a minimum length sufficient to secure a space, so that the rotary head 20 It is excellent in that the diameter can be made as small as possible.

In addition, as the adhesive sheet 10 to which the present invention is applied,
Not only the urethane foam seal as shown in the drawing, but also the adhesive sheet 10 which can be applied to various things such as a label and other seals as long as it is a sheet-like member having at least an adhesive surface.
For example, a rectangular frame-shaped packing material as shown in FIG. 11 can be cited. In this case, the peeling drive and the sticking drive can be performed along the diagonal direction shown by the arrow in the figure, and its two-dimensional The head 20 may be configured so that at least the suction holes 30 correspond to the target shape change positions A to D.

Further, the head on which the suction surface is formed is not limited to the rotary head 20 having the cylindrical surface 22 as in the above embodiment, but at least a shape that can move while contacting the adhesive sheet, for example, a head having an arc surface, etc. Good.

[Advantage of the Invention] According to the invention of claim 1, the suction holes of the head intersect with the longitudinal direction of the adhesive sheet, which can face only one in the sheet width direction, in the longitudinal direction of the sheet. Adhesion can be made by always adhering the bent parts that bend in a substantially straight line in the direction, and the original shape of the narrow and weakly rigid adhesive sheet is maintained by the adsorption of the start point and end point of the sheet extending in the cross direction. It can be adsorbed to the head side as it is and peeled off from the mount.

According to the invention of claim 2, even if the performance of the vacuum pump is not improved, the instantaneous suction force at the time of peeling the sheet is increased in each suction hole, and after the peeling, the suction pump is driven by a suction force sufficient for holding by suction. it can. Therefore, the peeling force can be less dependent on the inertial force when the head is moved, and even if the adhesive sheet has a two-dimensionally changing shape, it can be prevented from being twisted and deformed. However, there is an effect that the instantaneous suction force at the time of peeling can be increased as compared with the conventional case.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a rotary head and a frame that constitute a main part of an adhesive sheet sticking apparatus to which the present invention is applied, and FIGS. 2A and 2B are schematic perspective views of the rotary head. , A schematic cross-sectional view of the end of the suction surface, FIG. 3 is a schematic explanatory view for explaining the relationship between the operation pin and the cam, and FIGS. 4 (A) and 4 (B) are plan views of the adhesive sheet, respectively. FIG. 5A is a sectional view taken along the line I-I of FIG. 5A, FIG. 5 is a schematic plan view of a mounting member to which an adhesive sheet is to be attached, and FIG. 6 is an embodiment apparatus for peeling and attaching the adhesive sheet. FIG. 7 is a schematic explanatory view for explaining the entire configuration, FIG. 7 is a schematic perspective view for explaining a peeling operation of an adhesive sheet using a rotary head, and FIG. 8 is a valve state during the peeling operation. FIG. 9 is a schematic explanatory diagram for doing the pasting operation. Schematic explanatory view for explaining a definitive valve state, FIG. 10 is a schematic explanatory view showing a modification of the valve, FIG. 11 is a schematic explanatory view showing a modification of the adhesive sheet. 10 ... Adhesive sheet, 18 ... Mount, 20 ... Head, 22 ... Cylindrical surface,
24 ... Groove, 26 ... Suction surface, 28 ... Slope, 30 ... Suction hole, 32 ... Vacuum port, 40, 60 ... Valve, 44 ... Actuating pin, 46 ... Suction groove, 54 ... Peeling drive cam, 56 ... Sticking Drive cam.

Claims (4)

[Claims] 1. A head having a plurality of suction holes, which have a cylindrical surface or a circular arc surface as a suction surface and have a plurality of suction holes opened in the suction surface, is in contact with a narrow strip adhesive sheet attached to a mount. While moving, and sequentially opening a plurality of valves that respectively connect and disconnect the vacuum path leading to each suction hole to suck and hold the adhesive sheet on the head, and then sequentially close and drive the plurality of valves to remove the adhesive sheet. The device for sticking to the member according to claim 1, wherein the adhesive sheet has a portion that bends substantially linearly in a direction intersecting with the moving direction of the head, so that the shape changes two-dimensionally, The adhesive sheet sticking device is characterized in that the suction holes are opened on the suction surface at least at positions corresponding to the bent portions of the adhesive sheet. 2. An adhesive sheet attached to a mount,
A head having a plurality of suction holes, which have a cylindrical surface or an arc surface as a suction surface and open to the suction surface, is moved while being in contact with the head, and a plurality of valves that respectively interrupt the vacuum paths leading to the suction holes are sequentially opened to the head. A device for adsorbing and holding the adhesive sheet, and subsequently driving the plurality of valves to be sequentially closed to attach the adhesive sheet to another member, wherein the plurality of valves are in open and closed states, and It is set to a half-open state, which is an intermediate state, and is provided with a driving unit that drives the plurality of valves, and the driving unit is configured such that the suction holes of the head face the adhesive sheet and the adhesive bonds by suction. When peeling the sheet from the mount, the valve corresponding to the suction hole is driven from the closed state to the open state, and after the adhesive sheet is suction-held by the head. It said adhesive sheet so that the suction force sufficient to adsorb maintain applier of the adhesive sheet, which comprises driving the valve from the open state to the half-open state. 3. The adhesive sheet according to claim 1, wherein the head has a suction surface on which an adsorption hole for adsorbing a peeling start end portion of the adhesive sheet is formed as an inclined surface. Pasting device. 4. The groove according to claim 1, wherein the suction surface of the head has a contour along the outer shape of the adhesive sheet and is shallower than the thickness of the adhesive sheet. An adhesive sheet pasting device.