JPH0534220B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Object of the Invention (Field of Industrial Application) This invention relates to a pasting device for pasting a long adhesive tape onto an object.

(Prior art and problems to be solved) When attaching a tape material to a separator (backing member) and attaching a double-sided tape to an object, for example, as shown in FIG. A tape consisting of a separator 1 and an adhesive tape 2 is mounted on the object 3 that spans the entire length of the object 3, and the head 5 is lowered to adhere the object 3 at once over the entire length. The method is well known.

However, with such adhesive means, it is not easy to bond the entire tape well and uniformly when the tape is long, and after bonding, air bubbles may remain encapsulated on the adhesive surface, which may cause This tends to cause defects such as reduced adhesive strength and poor appearance.

In order to avoid such drawbacks, the adhesive head is moved from one end of the base plate on which the object to be adhered is placed to the other end, and the tape is applied to the base plate in accordance with the movement of the head. It has been proposed that the supply be made between the

However, with this type of tape, the tape is applied one after another by squeezing it from one end of the tape, so as the tape gets longer, it tends to slip off from the base plate without being able to fit in the designated position on the base plate. The reality is that we are not getting what we can.

The present invention has been made in order to cope with the current situation, and it is an object of the present invention to provide a pasting device that can always and accurately stick a long adhesive tape to a predetermined position. be.

(2) Structure of the invention (technical means for solving the problem, its effect) In order to achieve the above object, the present invention sequentially supplies adhesive tapes having separators to a transfer head, and connects the transfer head to a surface to be adhered. In the pasting device, the transfer head is moved so as to be able to come into contact with and separate from the tape material, and after the two come into contact, the transfer head is moved along the pasted surface to stick the tape material to the pasted surface. The adhesive tape is mounted and the abutting end that abuts the surface to be adhered is formed into a tapered shape, and after pasting, the separator part that moves away from the abutting end separates from the surface to be adhered. It is characterized by being guided in the direction.

With this configuration, bubbles are not generated on the adhesive surface, and it is possible to accurately adhere to a predetermined surface.

(Description of Embodiments) FIGS. 2 and 3 are a front view and a side view of a pasting device which is an embodiment of the present invention.

The frame 46 includes a main slider 41 that is movable in the vertical direction, and a transfer slider 37 that is mounted on the slider and moves in the horizontal direction.

A reel unit attachment member 12 is attached to the transfer slider 37, and the attachment member 12 includes:
A rotary shaft 7 is provided which is connected via a joint 10 arranged in the housing to a brake 11, for example a hysteresis brake, which produces a braking force proportional to the current flowing through a coil arranged thereon.

One support plate 6b of the reel 6 is fixed to the shaft 7, and the other support plate 6a is detachably attached to a portion opposite to this, and a separator is provided between them. Tape T is rolled up.

A switch bracket 17 is further attached to the reel unit mounting plate 12, and a contact 15 is disposed on a contact support bracket 16 disposed on the reel unit mounting plate 12 so as to be able to move up and down automatically. It comes into contact with the outer peripheral surface of the suspended tape and descends in response to changes in tape diameter.

A light shielding plate 14 is provided at the other end of the contactor 15, and photo switches 13a, 13 attached to the bracket 17 are connected in accordance with the displacement of the contactor 15.
b and 13c are sequentially shielded and switched.

FIG. 4 shows a brake control circuit using the above switch, which functions as a circuit to maintain the tension of the tape within a certain range when the normally closed contact SW _4TC of the switch SW ₄ is closed, and the photo switch 13a etc. 14, the resistors R ₁ , R ₂ and R ₃ connected to the normally open contact 13a _TO of the photo switch 13a etc. act selectively to reduce the current flowing to the brake coil 11c. control and generate braking force according to them.
This maintains the tension of the tape within a certain range as it is unwound.

Further, when the SW ₄ is on, the braking force of the brake 11 is 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 a roller 18a attached to a slider 37, a cutter 19, and a roller 18b, and then engages with the adhesive head 20. At the position of the cutter 19, only the tape material is cut and the separator remains as it is. At the position of the head 20, as will be described later, the tape material is applied to the object 3, and only the separator is wound onto a reel (not shown) via the drive system mounting plate 48.

As can be seen from FIG. 2, the transfer head 20 is tapered toward the bottom in the figure, and the roller 18 is disposed above the tip of the transfer head 20.
b, 24a, the tape is wound around the head 20 in a substantially V-shape;
It is assumed that the tape performs the transfer operation as described later while maintaining this shape.

Next, the structure and operation of the portion near the transfer head 20 will be explained with reference to FIG.

A slider guide member 26 is fixed to the transfer slider 37 (not shown) below it, and the transfer head 20 is arranged below it. In the guide member 26, a rod 27 is slidably disposed in bearings 29, 29, . There is. Further, a spring 30 is housed in the blind hole provided in the guide member 26,
Its free end abuts the head 20 and always biases it downward in the figure.

As described above, the transfer head 20 is formed into a tapered shape, and the top portion (lower end in the figure) is marked with the symbols a,
Only the area indicated by b is formed so as to be parallel to the direction during adhesion, and the distance between a and b is shorter than the length of the tape to be applied.

Positioning plates 21a are provided on both sides of the head 20,
21b is fixed by appropriate means, one of the plates (21a in the illustrated case) is formed into a flat shape as a whole, and the other plate (21b in the illustrated case) has recesses 21c formed at appropriate locations. . A leaf spring 2 whose one end is attached to the positioning plate 21b is provided in the recess 21c.
A contact 23 provided at the other end of 2 is loosely fitted. This contactor 23 connects the positioning plate 21b to the head 20.
It is preferable that the tip is configured so that when attached to the head 20, the tip fits loosely into the notch 20a provided in the head 20 by a small amount.

As can be seen from FIG. 5, both the positioning plates 21
When the positioning plates a and 21b are attached to both sides of the head 20, the lower ends of these positioning plates form falling parts located on both sides of the tape, thereby preventing the guided tape from coming off the head. can. Furthermore, the tip of the contactor 23, which is elastically supported by one positioning plate 21b, presses one side edge of the tape T against the side surface of the other positioning plate 21a, so that the tape is forcibly held in a fixed position. will be maintained.

Furthermore, as described above, since the tape T in contact with the head 20 is pressed from the side when it becomes concave upward, the teeth of the tape do not curve in any direction, allowing accurate positioning.

After the tape introduced into the transfer head 20 transfers the tape material portion to the object, the separator T _S is placed behind the head 20 with the positioning plate 2
It is peeled off from the adherend material portion by rollers 24a and 24b mounted on shafts 25a and 25b that are supported by shafts 1a and 21b.
It is transported in the direction shown in the figure.

Returning to FIGS. 2 and 3, the transfer slider 37 supporting the reel 6 and the like is slidably supported by a guide member 38, and is supported by a fluid cylinder 40 fixed to this guide member as shown in FIG. Can move left and right. Further, the transfer slider 37, guide member 38, and cylinder 40 are supported by a slider 41, and the slider 41 is moved up and down by a fluid cylinder 44 along a guide 42 provided on a frame 46.

Further, a bracket 45 is attached to the slider 41, and this bracket 45 is attached to the slider 4.
1 comes into contact with a stopper attached to the frame 46 to determine the lower position of the slider 41 and therefore the transfer head 20, thereby allowing the transfer head 20 to press the slider 41 at the time of pasting. Spring 3
Contact the object within the range where zero is applied.

As described above, the separator peeled off at the position of the transfer head 20 is attached to the rollers 18c and 18d and the arm 32, which are disposed on the drive system mounting plate 48 fixed to the guide member 38, as shown in FIG.
a roller 31 attached to the roller 31 and always elastically biased in the direction of contact with the limit switch SW ₁ ;
The paper is pulled and discharged outside the machine via rollers 18e and 18f by a pair of transport rollers 33 driven by a motor 34. In addition, the limit switch
SW ₁ controls starting and stopping of the motor 34.

The switch SW ₂ provided on the cylinder 40 is used as a signal for detecting the completion of movement of the slider 37, and the cylinder sensor SW ₃ is used as a signal for detecting the completion of movement of the slider 41 fixed to the cylinder 44.

Next, the operation of this device will be explained.

The tape transport motor 34 is activated by the start signal.
When activated, the roller pair 33 rotates to convey the separator, and the tape material integrated with the separator is transferred to the lower end a of the transfer head 20 (FIG. 5).
Located in At this time, the switch SW ₄ in FIG. 4 is off, the tension control circuit is selected, and the tape is unwound from the reel 6 at a tension within a certain range.

The tape is placed on the positioning plate 2 at the transfer head 20.
The vehicle travels with its lateral position determined by 1a and 21b. At this time, the roller 31 is biased in a direction approaching the limit switch _SW1 , so the switch is turned on.

Next, the main cylinder 44 is driven and the slider 41
is lowered and stopped at the stopper 47 position. At this position, the spring 30 acts so that the tape material side of the tape mounted on the transfer head 20 comes into pressure contact with the object to be adhered.

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. While the separator is being peeled off, only the adhesive tape material is adhered to the object.

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 _SW2 is turned on. At this time, the terminal end of the tape material to be adhered to the object 3 is located at the contact edge b of the lower end of the head 20 to the object 3.

Further, the switch SW ₄ is turned on by the signal from the cylinder sensor switch SW ₂ , and the braking force of the brake 11 becomes maximum, and the rotation of the reel is stopped. Furthermore, the cutter 19 is activated by the signal from the switch _SW2.
is activated, and only the tapered material on the separator is cut (it goes without saying that the cutting at this time determines the length of the next transfer tape material).

Then, by the action of the cylinder 44, the slider 4
1 rises, the separator corresponding to the length between the end edges a and b of the head 20 is peeled off from the tape material, and the adhesion is completed.

Next, the cylinder 40 is driven and the slider 37
When the separator returns, the swing arm 32 rotates in a direction to remove the slack in the separator, and the switch _SW1 is turned off.

The motor 34 is driven by the signal from the switch _SW1 to transport the separator. Needless to say, the drive of the motor in this case is set so that the separator transfer speed is slower than the return speed of the slider 37 and the swing arm 32 cannot swing completely.

When the slider 37 and the arm 32 return to their original positions and the roller 31 comes into contact with the switch _SW1 , the switch _SW1 is turned on and the motor 34 is stopped.

Then, when the switch SW ₄ is turned off and the tension control circuit is selected, one pasting process is completed and preparations for the next process are made, and the same operations as described above are repeated.

(3) Effects of the invention As explained above, according to the present invention,
In a transfer device that adheres an adhesive tape having a separator to a surface to be adhered sequentially from the end, the tip of the transfer head on the side of the surface to be adhered that brings the adhesive tape into contact with the surface to be adhered and then adheres while moving. Since the adhesive tape is formed into a tapered shape and the adhesive tape is mounted along this tape in a V-shape with the adhesive side inferior, the part where the head presses the tape material can be configured to be extremely small. It is possible to perform reliable transfer without leaving any air bubbles in the parts, and since the transferred tape material and separator are sufficiently separated immediately after transfer, there is no possibility that the separator may be transferred due to insufficient adhesion. Good transfer can be achieved by preventing interference with the tape material and disturbing the position of the tape.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram schematically showing a known tape bonding means, Fig. 2 is a front view of a transfer device showing an embodiment of the present invention, Fig. 3 is a side view of the same, and Fig. 4 is a brake control circuit diagram. , and FIG. 5 is a perspective view showing the structure of a portion near the transfer head same as above. 3... Object to be transferred, 6... Reel, 7... Shaft, 1
1...Brake, 13a, 13b, 13c...Photo switch, 20...Transfer head, 21a, 2
1b...Positioning plate, 37, 41...Slider,
38, 42... Guide member, 40, 44... Fluid cylinder, 47... Stopper, 48... Drive system mounting plate.

Claims (1)

[Scope of Claims] 1. An adhesive tape having a separator is sequentially supplied to a transfer head, and the transfer head is moved toward and away from the surface to be adhered, and after the two have come into contact, a tape is applied to the surface to be adhered. In the pasting device for sticking the tape material to the surface to be pasted by running the transfer head along the tape, the adhesive tape of the transfer head is mounted and the contact end that comes into contact with the surface to be pasted is tapered. A pasting device characterized in that the separator is formed into a separator and separated from the abutting end portion after pasting is guided in a direction away from the surface to be pasted.