JPH0471767B2 - - Google Patents

Description

[Detailed Description of the Invention] (1) Purpose of the Invention (Field of Industrial Application) This invention relates to a pasting method and device that automatically repeats cutting and pasting of a long adhesive tape according to the object to be pasted. It is.

(Prior art and problems to be solved) When attaching a double-sided tape having a separator (backing member) to an object, conventionally, as shown schematically in FIG. A head 5 having a length spanning the entire length of the member 3 is disposed so as to be removable and removable, and the adhesive member 2 having the separator 1 is attached at once by lowering the head 5. It is usually constructed so that it can be adhered to.

However, since this type of tape is relatively flexible, it is not easy to apply it uniformly over the entire surface using this adhesive method.
The adhesive member 2 and the adhesive member 3 may not match accurately and may become misaligned or wrinkle due to various causes such as warping or bending of the adhered object, unevenness of the adhesive surface on the tape side, or deviation in the position of the head. In addition, air bubbles remain on the abutting surfaces of the two, which weakens the adhesive force.

As this type of attachment means, for example, JP-A No. 53
-55298 and JP-A-53-125800 have already been proposed, but in both of these, the tape, label, etc. to be attached is separated from the backing member and then attached to the member to be attached. It has the same defect as that explained with reference to FIG. 1 above.

The present invention has been developed to deal with this situation, and includes sequentially pasting tapes having separators in the longitudinal direction of the object to be adhered, and peeling off the separators after the pasting work is completed. ,
It is an object of the present invention to provide a pasting method and apparatus that can perform pasting without the above-mentioned drawbacks by automatically performing pasting using the separator as a guide.

(2) Structure of the invention (technical means for solving the problem and its effect) In order to achieve the above object, the present invention provides an adhesive tape attached to a separator via an adhesive and supplied onto an object to be attached. The method includes a transfer head for pressing the adhesive tape pasted on the separator onto the object, and a transfer head that is moved up and down for pressing. a means for moving the transfer head (cylinder 44), a means (cylinder 40) for moving the transfer head in the pasting direction of the object, and a means (cylinder 40) for moving the adhesive tape to the object when the transfer head runs in the pasting direction. Means for positioning the surface (positioning plate 21a,
21b, a spring 22, and a contactor 23), the adhesive tape is pressed and run while being aligned with the object by the alignment means, and the adhesive tape is moved in the adhesion direction of the transfer head. A pasting method for pasting an adhesive tape onto an object to be pasted, characterized in that after pasting is completed, the adhesive tape and the separator are separated behind the transfer head and the separator is wound up. and an apparatus for supplying an adhesive tape affixed to a separator via an adhesive onto an object to be affixed, and then adhering the cut adhesive tape to an object to be affixed, the adhesive tape affixed to the separator to the object to be affixed. A transfer head for pressing the object to be adhered, a means (cylinder 44) for moving the transfer head up and down for pressing, a means (cylinder 44) for moving the transfer head in the direction in which the object is to be adhered; Means (positioning plates 21a, 21
b, a spring 22, and a contactor 23), and the contactor attached to the spring fixed to one positioning plate 21b is loosely fitted into a notch formed in the other positioning plate. It is.

With this configuration, there is no risk of the adhesive surface of the adhesive tape adhering to other objects or misalignment between the adhesive tape and the object to which it is adhered, and there is no risk of foreign matter getting into the space between the object to be adhered and the adhesive tape. It is possible to perform adhesion without causing bubbles or bubbles.

(Description of Examples) FIGS. 2 and 3 are a front view and a side view of a sticking device showing an embodiment of the present invention.

A main slider 41 is disposed on the frame 46 and is movable in the vertical direction (vertical direction in the figure), and a transfer slider 37 is disposed on the main slider so as to be movable in the horizontal direction (horizontal direction in the figure). .

A reel unit attachment member 12 is attached to the transfer slider 37, and a housing 9 is attached to the attachment member 12. This housing 9 has a brake 11 such as a hysteresis brake that generates a braking force proportional to the current flowing through the coil.
and a rotating shaft 7 connected thereto via a joint 10.

One support plate 6b of the reel 6 is attached to the shaft 7, and the other support plate 6a is opposite to this.
are fixed by appropriate means, and a tape T having a separator is wound between these support plates 6a and 6b.

A switch bracket 17 is disposed on the reel unit mounting plate 12, and a contact 15 is disposed on a contact support bracket 16 provided thereon so as to be movable up and down, one end of which is attached to the tape T. The tape contacts the outer surface of the tape and descends according to the amount of tape. A light shielding plate 14 is fixed to the upper end of the contactor 15, and as the contactor 15 descends, it sequentially blocks light from the photo switches 13a, 13b, 13c disposed on the bracket 17 to perform a switching action. It's summery.

Figure 4 shows the brake control circuit operated by the above switch, with the normally closed contact of switch SW ₄ .
When SW _4TC is closed, it acts as a circuit to keep the tape tension constant, and the photo switch 1
3a, 13b, and 13c are sequentially switched by the light shielding plate 14, so that each switch 13a
Resistor R ₁ connected to normally open contact 13 _aTO , etc.
R ₂ and R ₃ selectively act on the brake coil 11
The current flowing through c is controlled to produce a braking action in response to these resistances to maintain the tension of the tape within a certain range as the tape is unwound. Further, when the switch SW ₄ is on, the braking force of the brake 11 becomes maximum and the rotation of the reel 6 is stopped.

As can be seen from FIG. 2, the tape T unwound from the reel 6 passes through the rollers 18a, 18b and the cutter 19 disposed on the transfer slider 37, and engages with the adhesive head 20, and at this position, the tape T is engaged with the adhesive head 20, which will be described later. Assume that the adhesive tape is attached to the object 3 to be attached, and only the separator is wound onto a reel (not shown) via the mounting plate 48.

Next, the sticking head will be explained with reference to FIG.

A slider guide member 26 is fixed to the transfer slider 37 below, and the transfer head 20 is arranged below the slider guide member 26. The guide member 2
At 6, a rod 27 is slidably disposed in bearings 29, 29, . Furthermore, a coil spring 30 is accommodated in the blind hole formed in the guide member 26, and its lower end is pressed against the adhesion head 20 to bias it downward in the drawing.

As can be seen from FIG. 5, the transfer head 20 is
It is formed in an almost triangular shape, arranged so as to be convex downward, and the lower ends, which are the tops, are marked a and b.
The range indicated by 2 extends approximately parallel to the direction in which the tape runs during operation. The length of the above range a to b is shorter than the length to be pasted.

Positioning plates 21 are provided on both sides of the head, respectively.
a, 21b are attached, one of the plates (in the case shown, the reference numeral 21a is formed in a planar shape as a whole, and the other positioning plate 21b has a recess 21c).
A contactor 23 provided at the other end of the leaf spring 22, one end of which is attached to the positioning plate 21b, is loosely fitted into the recess 21c. This contact 23
When the positioning plate 21b is attached to the head 20, its tip fits into a notch 20a provided in the head by a small amount.

Both positioning plates 21a and 21b are connected to the head 20.
When attached to the tape, those edges form rib-like raised portions on each side of the head to guide the tape. Furthermore, the contactor 23 provided on the spring 22 arranged on the positioning plate 21b comes into contact with the side edge of the running tape, causing the tape to run at a predetermined position.

The tape T introduced into the pasting head 20 is
Passing through the aforementioned range a to b at the lower end of the head,
After the part with the adhesive is transferred to the object to be adhered,
The separator TS that has peeled off is removed from the rollers 24a and 24 provided on the shafts 25a and 25b provided in the head.
b, and is conveyed in the direction of the above-mentioned mounting plate 48.

Returning to FIGS. 2 and 3, the transfer slider 3
7 is slidably mounted on the guide member 38,
A cylinder 40 attached to the guide member 38 moves it in the left-right direction in FIG. Further, the transfer slider 37, the guide member 38, and the cylinder 40 attached thereto are attached to a slider 41, and the slider 41 is moved vertically by a cylinder 44 along a guide 42 provided on a frame 46. to slide.

A bracket 45 is attached to the slider 41, and as the slider 41 descends, this bracket 45 comes into contact with a stopper attached to a frame 46, and the slider 41 and therefore the transfer head 2 are moved.
The lowering position of 0 is determined.

As shown in FIG. 2, the separator TS peeled off at the lower end of the transfer head at the position in the above-mentioned range a to b passes through the rollers 18c and 18d disposed on the mounting plate 48, and is further mounted. It is elastically biased in the direction of the limit switch SW ₁ attached to the plate 48 and is passed through the roller 31 attached to the arm 32, rollers 18e and 18f, and then by the conveying roller 33 driven by the motor 34. shall be ejected from the aircraft. The limit switch _SW1 controls driving and stopping of the motor 34.

The switch SW ₂ attached to the cylinder 40 provides a signal for detecting the completion of movement of the slider 37, and the cylinder sensor SW ₃ provides a signal for completion of movement of the slider 41 fixed to the cylinder 44, respectively.

Next, the operation of the device will be explained.

The motor 3 for transporting the tape is activated by the start signal.
4 is activated, the roller 33 rotates and the separator is conveyed, and at the same time, the adhesive tape integrated with the separator reaches position a within the range a to b at the lower end of the head 20.

At this time, the switch SW ₄ in FIG. 4 is off, and the tape is unwound from the reel 6 with a tension within a certain range, depending on the selection of the tension control circuit. This tape is first applied to the positioning plate 2 in the head 20.
Lateral positioning is performed by 1a and 21b. At this time, the roller 31 is activated by the limit switch.
It comes into contact with SW ₁ and turns it on.

Next, the cylinder 44 is driven and the slider 41
is lowered and stopped at the stopper 47 position. At this position, the tape mounted on the transfer head 20 is adhered to the member 3 by the action of the spring 30.

At the same time, the cylinder sensor SW ₃ is turned on, thereby driving the cylinder 40 and moving the slider 37 to the right in FIG. The tape is sequentially applied from the end of the member to be adhered while the separator is peeled off.

As mentioned above, the length of the part at the tip of the head that is pasted is small compared to the length of the material to be pasted, and the pasting is carried out successively from the end of the material to be pasted. In addition, since the lateral position of the tape is precisely set, it is possible to reliably prevent the tape from bending or from entering air and creating bubbles.

The slider 37 comes into contact with a stopper (not shown) provided on the guide member 38 and stops, and at the same time, the cylinder sensor switch SW ₂ is turned on. At this time, the lower end of the head 20, the end b of the contact edge to the member to be adhered.
reaches the position where it corresponds to the end of the member to be adhered, and the tape is surely applied to the entire area to be applied. Also, the switch is activated by the signal from cylinder sensor switch SW ₂ .
SW ₄ is turned on, the braking force of the brake 11 is maximized, and the rotation of the reel is stopped. In addition, the switch
The cutter 19 is actuated by the signal of SW ₂ and cuts only the tape portion excluding the separator portion.

Next, the slider 41 is raised by the operation of the cylinder 44, and the separator corresponding to the length between ranges a to b at the lower end of the transfer head 20 is peeled off from the tape, completing the adhesion.

Next, the cylinder 40 is driven and the slider 37
When the separator returns, the swing arm 32 swings in a direction to remove the slack in the separator, and the switch _SW1 is turned on. The motor 34 is driven by this signal to transport the separator. Needless to say, the drive of the motor in this case is set so that the moving speed of the separator is slower than the return speed of the slider 37 and the swinging arm 32 cannot fully swing.

When the slider 37 returns to its original position and the arm 32 also returns to its original position, the roller 31 comes into contact with the switch _SW1 , turning off the switch and stopping the motor 34.

Switch S _W4 is then turned off and one pasting cycle is completed.

(3) Effects of the Invention As explained above, according to the present invention, the transfer head, which is shorter than the member to be adhered, transfers the transfer head to the member to be adhered while pressing the tape body and the separator together. The tape is applied while being squeezed, and the separators are sequentially peeled off immediately after application, and the positioning of the tape and the member to be applied is ensured. Prevents air bubbles from leaking and dust from entering,
Stable and strong adhesion can be achieved without bending or relative positional displacement between the tape and the adhered member.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram showing a known tape attachment means;
FIG. 2 is a front view of a pasting device showing an embodiment of the present invention, FIG. 3 is a top side view of the same, FIG. 4 is a brake control circuit, and FIG. 5 is an enlarged perspective view of a transfer head. 3... Member to be adhered, 6... Reel, 7... Shaft,
11...Brake, 13a-13c...Photo switch, 20...Transfer head, 21a, 21b...
...Positioning plate, 37, 41...Slider, 38,
42... Guide member, 40, 44... Cylinder,
47...Stopper, 48...Mounting plate.

Claims (1)

[Scope of Claims] 1. A method of supplying an adhesive tape pasted to a separator via an adhesive onto an object to be adhered to and then adhering the cut adhesive tape to the object, the method comprising: adhering the adhesive tape to the separator; a transfer head for pressing the applied adhesive tape onto the object; a means (cylinder 44) for moving the transfer head up and down for pressing; and a cylinder 44 for moving the transfer head in the direction in which the object is to be applied. means (cylinder 40), and means (positioning plates 21a, 21b, springs 22,
a contactor 23), the adhesive tape is pressed and moved while being aligned with the object to be adhered by the positioning means, and after the attachment is completed by running the transfer head in the attachment direction; . A method of attaching an adhesive tape to an object, characterized in that the adhesive tape and the separator are separated behind the transfer head and the separator is wound up. 2 An apparatus for supplying an adhesive tape pasted to a separator via an adhesive onto an object to be pasted, and then adhering the cut adhesive tape to the object, wherein the adhesive tape pasted to the separator is A transfer head for pressing the object to be adhered, a means (cylinder 44) for moving the transfer head up and down for pressing, a means (cylinder 44) for moving the transfer head in the direction in which the object is to be adhered; It has means (positioning plates 21a, 21b, springs 22, contacts 23) for positioning the adhesive tape on the attachment surface of the object to be attached when the transfer head runs in the attachment direction, one of the positioning plates A pasting device characterized in that a contact attached to a spring fixed to 21b is loosely fitted into a notch formed in the other positioning plate.