JPS6234756Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to an automatic tape pasting device for pasting tape such as FRP prepreg tape onto the surface of an object to be pasted such as a mold. This invention relates to an improvement of a pressing roll part for running and pasting while pressing.

As shown in FIG. 1, in this type of device, a tape 1 pulled out from a tape reel 3 via a guide roll 4 by pull-out rolls 5, 5 and a protective paper 2 pasted on one side of the tape is cut into a tape cutting section 6. , the pressing roll 9 via the preheating section 7 and the guide roll 8
The pressing roll 9 presses the tape 1 onto the surface of the object to be applied 10 through the protective paper 2, and the X, Y, Z axes shown in FIG. a rotation axis a centered on the axis;
The tape 1 is applied to the surface of the object 10 without any gaps by running the press roll 9 along the surface of the object 10 under simultaneous 6-axis NC control of b and c, and the tape is applied multiple times by changing the direction of application. 1 to form a plate of a desired shape. The protective paper 2 is wound onto a take-up tape reel 11, and only the tape 1 is cut by the tape cutting section 6 according to the length of pasting each time.

In this device, if there is an uneven surface on the surface of the object 10 that is not perpendicular to the running direction of the press roll 9, that is, the pasting direction, only one side of the press roll 9 will be pressed against the object 10, and a gap will be created on the other side. , or the pressing force on the other side becomes weak, making it impossible to bring the tape 1 into close contact with the surface of the object 10 to be applied.

The present invention was devised in view of the above-mentioned points, and includes a pressing roll located approximately in the center of its width direction and rotatably mounted around an axis approximately parallel to the pressing direction of the pressing roll, and a press roll to be pasted. To provide an automatic tape pasting device in which even if the surface of an object has an uneven surface not perpendicular to the pasting direction, a pressing roll turns along the uneven surface and a uniform pressing force can be obtained over the entire width.

Figures 2 to 4 below show an embodiment of the present invention.
The diagram will be explained. In FIG. 2, 1 is a tape, 8 is a guide roll, and 9 is a pressing roll.
Note that the protective paper 2 is omitted in this figure. The pressing roll 9 is attached to the stay 1 via a bearing (not shown).
It is rotatably attached to 2. A shaft 13 is projected from the center of the upper part of the stay 12, and a shank 14 is attached to the shaft 13 so as to be rotatable only. The shank 14 is adapted to be detachably attached to a socket 16 provided on the movable plate 15. The movable plate 15 has two cylinders 17 and 1 mounted on a cylinder mounting plate 18 attached to a main body (not shown) that supports the guide roll 8 and the like of this device.
They are connected via 7. These cylinders 1
7 and 17 are provided parallel to the shaft 13 and the shank 14, and apply a downward pressing force to the pressing roll 9 parallel to the shaft 13 and in FIGS. 2 to 4.

Next, the operation of this device will be explained. For example, as shown in FIG. 5, when attaching the tape 1 to the surface of an object to be attached 10 that has a convex portion 10a inside, the tape 1 is attached multiple times to form a plate that follows the shape of the surface. In order to do this, as shown in the same figure, the tape 1 is pasted at a certain angle, such as 45°, to the edge 10b of the convex portion 10a, and the second layer to be pasted thereon is It is desirable to apply a tape (not shown) in a direction substantially perpendicular to the tape 1. In this way, even if there is an uneven surface extending linearly on the surface of the object 10 to be applied, if the application direction is not perpendicular to the uneven surface, or if the uneven surface is curved in the middle, the pressing The roll 9 hits the uneven surface obliquely. At this time, the side of the pressing roll 9 that first hit the convex portion is lifted against the pressing force of the cylinder 17, and the roll surface of the other side tends to separate from the surface of the object 10. Note that the pressing roll 9 is generally made of rubber or the like and has a certain degree of elasticity, so if the degree of unevenness is small, it will be absorbed and will not separate, but the pressing force will be insufficient and it will not work properly. The tape 1 may not be able to be applied to the surface of the object, and the tape 1 may lift off the surface of the object.

However, since the pressing roll 9 of this device is provided so as to be able to freely turn around the shaft 13, when the convex surface comes into contact with one side of the pressing roll 9, the pressing roll 9 follows suit and turns, and the entire width of the pressing roll 9 is rotated. Then, the tape 1 is pressed onto the surface of the object 10 with uniform pressing force.

This is done in the same way for concave surfaces to ensure that the tape 1 is affixed to the concave and convex surfaces.

Moreover, when the surface of the object 10 to be pasted is flat,
Tape 1 from guide roll 8 to pressing roll 9
Alternatively, the pressure roll 9 is automatically oriented in the pasting direction by the tension of the protective paper 2 extending from the pressure roll 9 to the take-up tape reel 11.

In addition, in the case of pasting that does not require rotating the pressing roll 9 at all, it is better to fix the shaft 13 to the shank 14. For this reason, it is preferable to provide a locking means between the shaft 13 and the shank 14.

As described above, according to the present invention, even if the surface of the object to be pasted has an uneven surface that is not perpendicular to the pasting direction,
The pressing roll rotates following the uneven surface, expelling air between the surface of the object to be applied and the tape, and thereby making it possible to reliably apply the tape in close contact with the object.

[Brief explanation of the drawing]

Fig. 1 is a schematic perspective view of an automatic tape pasting device, Fig. 2 is a perspective view of essential parts showing an embodiment of the present invention, and Fig. 3
4 is a left side view of FIG. 3, and FIG. 5 is a partial perspective view showing an example of an object to be applied and the direction in which the tape is applied to the object. DESCRIPTION OF SYMBOLS 1... Tape, 2... Protective paper, 3... Tape reel, 4, 8... Guide roll, 5... Drawer roll, 6... Tape cutting section, 7... Preheating section, 9
... Pressing roll, 10 ... object to be applied, 11 ... winding tape reel, 12 ... stay, 13 ... shaft,
14...Shank, 15...Movable plate, 16...Socket, 17...Cylinder, 18...Cylinder mounting plate.

Claims (1)

[Scope of utility model registration request] In an automatic tape applicator, the tape is applied onto the surface of an object by pressing the tape pulled out from a tape reel with a press roll and moving the press roll in the longitudinal direction of the tape to apply the tape onto the surface of the object to be applied. 1. An automatic tape pasting device, characterized in that it is mounted so as to be rotatable around an axis that is located approximately in the center of the pressing direction and is approximately parallel to the pressing direction of the pressing roll.