JPS628953A - Peeling noise reducer for laminator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Field of Application of the Invention) The present invention relates to a peeling noise reduction device for a laminator that laminates a transparent strip-shaped film onto a strip-shaped member such as a label, and particularly relates to a device for reducing peeling noise of a laminator that laminates a transparent strip-shaped film onto a strip-shaped member such as a label. This invention relates to a device for reducing peeling sound of a laminator, which reduces noise when a film is peeled off from a supply roll by pressing the film against the feed roll.

(Prior Art) A general laminator 1 will be outlined based on FIG. A strip-shaped label 4 as a printing medium is attached to an unwinding roll arm 3 provided on the side surface of the base 2, and this label 4 passes through a turning roller 5, 6, a sensor 7, a film cutting device 8, and Pinch roller 9, this pinch roller 9
Idle roller 10 biased in the direction. Furthermore, it passes through a turning roller 11 and is wound onto a winding roll 12. A bar code and other necessary information are preprinted on the label 4 by a desired printer (not shown). Note that a tension bar 13 is elastically biased on the roll of the label 4 to stabilize the unwinding tension.

Further, the transparent film F is unwound from a supply roll 15 attached to a film unwinding shaft 14.

The film pasting passes through the freely rotating guide roller 16 to the film setting table 17, and the film urged in the direction of the film setting table 17 is pasted to the label 4 at the roller 18 portion, and then passes through the transport path of the label 4. The laminate M is formed by being stacked on the label 4 and taken up by the winding roll 1.
It is wound up as 2.

FIG. 2 shows this laminate M, and the label 4 is the mount S.
A label piece is temporarily attached to the top, and the printed content P can be protected by laminating film F, which is a transparent resin film coated with a pressure-sensitive adhesive on the back side. ing. This laminate M is cut at the cutting line C using a cutting device 8 so that a laminate label A of any size can be obtained. Note that a trimming portion T is formed between each label piece so that the position of the label piece can be detected by the sensor 7.

A drive motor (not shown) equipped with a slip mechanism is provided to take up the winding roll 12, and a step motor (not shown) is used to drive the pinch roller 9.

Returning to FIG. 1, the cutting device 8 is internally covered by a top cover 19, and a rotary base roller 21 rotating around a drive shaft 24 and a fixed cutter 23 are connected to the laminated body M.
They are placed facing each other with the two sides in between.

When the laminator 1 is started, the laminated label 4 and film F (that is, the laminate M) pass through the sensor 7 section, and the laminate film is cut by the cutting device 8 according to the detection signal.

However, such a laminator I has the following problems. That is, when the film F is fed out from the outer periphery of the supply roll 15, that is, when it is peeled off, since the pressure-sensitive adhesive is applied to the back surface of the film F, as shown by the imaginary line in FIG. The film F is still stuck to the supply roll 15 over the arc from point Q1 to point Q2. However, when the tension of the film F overcomes the adhesive force of the pressure-sensitive adhesive, the film F is suddenly and sharply peeled off from the outer peripheral surface of the supply roll 15, but at this time, the vibration of the film F causes a large make a sound,
This phenomenon was repeated and caused unpleasant noise.

(Purpose of the invention) - The invention has been made in view of the above circumstances, and it is an object of the present invention to reduce the noise of this type of device by preventing vibration when the film is peeled off from its supply roll. It is an object of the present invention to provide a device for reducing peeling sound of a laminator.

(Invention: Overview) That is, the present invention applies to the outer periphery of the film supply roll.

A peeling assisting roller is brought into contact with a predetermined biasing force, and the +i film is guided so that the film is turned by this roller portion, and the film is fed out at an angle of approximately 90 degrees to 180 degrees with respect to the central axis of the supply roll. This is a laminator peeling noise reduction device configured to have the following characteristics.

(Embodiment □Example) Next, an embodiment of the present invention will be described along with the principle of the invention with reference to FIG. 4.

FIG. 4 shows the supply roll 14 and turning roller 6 of the film F.
In this section, a roller 30 for assisting peeling is brought into contact with the outer circumferential surface of the supply roll 15 with a certain biasing force. The angle between the straight line connecting this roller 30 and the film feeding direction and the straight line connecting the center of the supply roll 15 and the roller 30 is 90 degrees in the state shown by the solid line, but this angle is approximately 90 degrees. □Good if it is degree. That is, if this angle is set to 90 degrees at the beginning of feeding the film P from the supply roll 15, this angle will become larger than 90 degrees when the film F runs out; 9
If the angle is set to 0 degrees, this angle will be smaller than 90 degrees at the beginning of feeding out the fill'jaF, and it is sufficient that it is approximately 90 degrees, including both of these cases.

Further, as shown by the imaginary line in FIG. 4, the roller 30 may be positioned slightly lower in the figure, and in this case, the angle is 9
Although the angle is smaller than 0 degrees, the roller 30 is provided in such a range that the film F before peeling and the film F after peeling, which are still on the outer circumference of the supply roll 15, come into contact with each other and do not generate a single noise.

Furthermore, the auxiliary roller 30 may be provided at a position where the angle is within a range of approximately 90 degrees to approximately 180 degrees. That is, as shown by the imaginary line in the upper part of FIG. 4, the roller 30 is located at a position where the angle is 180 degrees, that is, the feeding direction of the film F is on the extension line from the center of the supply roll 15, or at a position slightly deviated from this extension line. It's okay.

An example of an embodiment based on this principle is Koro 30.
is rotatably held in a frame 31 and movable in a guide groove 32 formed in the center of the substrate 2, and the roller 30 is urged in the direction of the supply roll 15 by a push spring 33.

In this way, when the film F is fed out from the supply roll 15, it is always turned around by the rollers 30, so that it is peeled off and fed out at a constant speed. In other words,
Unstable feeding is prevented, and the occurrence of peeling noise is almost suppressed.

FIG. 5 shows another embodiment of the present invention, in which a rotating arm 42 is pivotally attached to a frame 40 of the turning roller 6 with a fixed shaft 41. As shown in FIG. A rotating arm 42 is attached to the fixed shaft 41 part.
and the pin 43 planted on the base m2.
4 is disposed to constantly urge the rotating arm 42 in the direction of the outer peripheral surface of the supply roll 15. Note that the reference numeral 40a indicates a fixed axis of the frame 40.

At the tip of the rotating arm 42, a peeling assisting roller 30 similar to that of the previous embodiment is rotatably provided, and is brought into contact with the film F of the supply roll 15 at a predetermined pressure. Further, the straight line connecting the fixed shaft 41 of the rotating arm 42 and the roller 30 is substantially perpendicular to the straight line connecting the center of the supply roll 15 and the roller 30, as in the above embodiment.

The effect of preventing peeling noise with such a configuration is almost the same as that shown in FIG. 4, so a detailed explanation will be omitted. Since the rollers 30 are guided to assist the peeling, the rollers 30 can be held securely and the rollers 30 can be urged against the supply roll 15 more easily.

(Effects) As described above, according to the present invention, since the roller for assisting peeling is urged into contact with the outer periphery of the film supply roll, harsh noise can be reliably suppressed.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an example of a laminator to which the present invention is applied, FIG. 2 is an explanatory diagram of a laminate in which films are laminated, FIG. 3 is a schematic diagram of a conventional film supply mechanism, and FIG.
Figure 5 is an explanatory diagram explaining the principle and one embodiment of the present invention.
The figure is an explanatory plan view of another embodiment of the present invention. In the figure: 1. Φ laminator 2. Base 4. Label 6. Turning roller 8. Cutting device 12. Winding roll 14. Unwinding shaft
15φ・Supply roll 16-e Guide roll 30・Roller for peeling assistance 31.40・Frame 32・Guide groove 33・Press spring 40a, 41・Fixed shaft 42・Rotating arm 44・Winding Spring A... Laminated label C11... Cutting line F... Film K... Center of supply roll LL1...
Label piece M...Laminated body Sφ/mount

Claims (1)

[Claims] In a peeling noise reduction device for a laminator that laminates a strip-shaped medium to be laminated that is transported on a predetermined path and a transparent strip-shaped film that is fed out from a supply roll, the peeling noise reduction device is installed to freely rotate and is attached to the outer periphery of the supply roll. and a biasing member that biases this roller in the direction of the center axis of the supply roll, such that a straight line connecting the film feeding direction and the roller connects the center of the supply roll and the roller. A device for reducing peeling sound of a laminator, characterized in that the device forms an angle of approximately 90 degrees to approximately 180 degrees with respect to the connecting straight lines.