JPH0662249B2 - Laminator peeling noise reduction device - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a peeling noise reducing device for a laminator in which a transparent strip-shaped film is laminated on a strip-shaped member such as a label. TECHNICAL FIELD The present invention relates to a peeling noise reducing device for a laminator, which reduces noise when the film is peeled off from a supply roll by pressing against.

(Prior Art) A general laminator 1 will be outlined with reference to FIG. A strip-shaped label 4 as a medium to be printed is attached to the unwinding roll arm 3 provided on the side surface of the base 2, and the label 4 passes through the deflecting rollers 5 and 6, the sensor 7, the film cutting device 8 and Pinch roller 9, this pinch roller 9
It is taken up by the take-up roll 12 through the idle roller 10 biased in the direction, and further the turning roller 11. A bar code and other necessary information are previously printed on the label 4 by a desired printer (not shown). A tension bar 13 is elastically biased to the roll of the label 4 to stabilize the unwinding tension.

The transparent film F is unwound from a supply roll 15 attached to the film unwinding shaft 14, passes through a freely rotating guide roller 16, and is urged toward the film set table 17 and the film set table 17 direction. After being stuck to the label 4 at the film sticking roller 18 part,
The label M passes through the transfer path of the label 4 and is laminated on the label 4 to form a laminated body M, which is wound up as a winding roll 12.

FIG. 2 shows this laminated body M, and the label 4 is the mount S.
A label piece L is temporarily adhered on top of the transparent resin film, and a film F having a pressure-sensitive adhesive applied to the back surface of a transparent resin film can be laminated thereon to protect the print content P. ing. The position of the cutting line C of the laminated body M is cut by the cutting device 8 so that the laminated label A having an arbitrary size can be obtained. A trimming portion T is formed between the label pieces L so that the position of the label piece L can be detected by the sensor 7.

A drive motor (both not shown) having a slip mechanism is provided for winding the winding roll 12, and a step motor (not shown) is used for driving the pinch roller 9.

Referring back to FIG. 1, the inside of the cutting device 8 is covered by a top cover 19, and a rotary base roller 21 and a fixed cutter 23 that rotate around a drive shaft 24 are provided in a laminated body M.
They are placed opposite to each other.

The label 4 and the film F (that is, the laminated body M) laminated by the start of the laminator 1 pass through the sensor 7 portion, and the laminating film is cut by the cutting device 8 according to the detection signal.

However, such a laminator 1 has the following problems. That is, since the pressure sensitive adhesive is applied to the back surface of the film F when the film F is fed from the outer periphery of the supply roll 15, that is, is peeled off, as shown by the phantom line in FIG. The film F is still attached to the supply roll 15 over the arc from the point Q1 to the point Q2. Then, when the tension of the film F overcomes the adhesive force of the pressure sensitive adhesive, the film F suddenly
The film is abruptly peeled off from the outer peripheral surface of the supply roll 15, but at this time, a large noise is generated due to the vibration of the film F, and this phenomenon is repeated, which causes annoying noise.

(Object of the Invention) The present invention has been made in view of the above circumstances, and it is possible to prevent the film from vibrating when peeled from the supply roll, and reduce the noise of this type of device. It is an object of the present invention to provide a peeling noise reducing device for a laminator.

(Outline of the Invention) In the present invention, a roller 30 for peeling assistance having elastic biasing members 33 and 34 is brought into contact with the outer peripheral surface of a supply roll 15 which is transparent and is made of a film F with an adhesive. At the 30th part, the film F fed from the supply roll 15 is extended and guided in reverse, and the diameter of the supply roll 15 is reduced by the feeding of the film F, so that the roller 3
0 is a laminator separation noise reducing device configured to move by elastically biasing in the direction of the center K of the supply roll 15.

(Embodiment) Next, an embodiment of the present invention will be described based on FIG. 4 together with the principle of the invention.

FIG. 4 shows a film F supply roll 14 and a turning roller 6.
The peeling assisting roller 30 is brought into contact with the outer peripheral surface of the supply roll 15 with a constant biasing force. The angle formed by the straight line connecting the roller 30 and the film feeding direction and the straight line connecting the center K of the supply roll 15 and the roller 30 is a solid line. In the state shown in the figure, the reverse feeding angle of the film is 90 degrees. This angle may be about 90 degrees. That is, if the reverse feeding angle of the film F is 90 degrees at the beginning of feeding the film F from the supply roll 15, the film F
When the film F disappears, this angle becomes larger than 90 degrees. Conversely, when the film F disappears, the angle becomes 90 degrees.
Since it is smaller than 90 degrees, it is sufficient if it is about 90 degrees including both cases.

Further, the roller 30 may be positioned slightly asymmetrical in the figure as shown by the phantom line in FIG. Even in this case, the angle is 9
Although it is smaller than 0 degree, the roller 30 is provided in a range in which the pre-peeling film F and the post-peeling film F that are still on the outer circumference of the supply roll 15 do not generate noise due to contact with each other.

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

Next, a specific structure of an embodiment of the present invention will be described with reference to FIG.

The supply roll 15 is transparent and is composed of a strip-shaped film F with a pressure-sensitive adhesive on the back surface (inner surface of the roll). That is, this roll-shaped supply roll 1
The adhesive is not present on the roll surface of roll No. 5.

Further, the roller 30 for assisting peeling of the strip-shaped film F is
It is rotatably held by a frame 31 and is movable in a guide groove 32 formed in the center K direction of the substrate 2, and a pressing spring 33 elastically biases the roller 30 to the surface of the supply roll 15. is there.

Therefore, even if the film F is fed out and the supply roll 15 is successively reduced in diameter, the roller 30 is always in contact with the elastic force of the pressing spring 33. That is, the roller 30 is horizontally driven in the direction of the center K according to the diameter reduction of the supply roll 15. A guide groove 32 is a moving means of the roller 30 that is elastically biased as the diameter of the supply roll 15 is reduced.

Thus, when the film F is fed from the supply roll 15, the film F is always reversed at the portion of the roller 30, so that the film F is peeled and fed at a constant speed. That is, unstable feeding is prevented, and the generation 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. On the fixed shaft 41 portion, the rotating arm 42
And the pin 43 planted on the base 2 between the winding spring 4
4 is provided to constantly urge the rotating arm 42 toward the outer peripheral surface of the supply roll 15. Reference numeral 40a indicates a fixed shaft of the frame 40.

The roller 30 for assisting the peeling of the film F is the supply roll 1
Corresponding to the diameter reduction of 5, the arcuate follower is moved in the direction of the center K with the fixed shaft 41 of the rotating arm 42 as a fulcrum. That is, as the diameter of the supply roll 15 is reduced, the roller 30 is elastically biased.
The moving means is a rotating arm 42.

A roller 30 for peeling assistance similar to that in the above-described embodiment is rotatably provided at the tip of the rotating arm 42, and the winding spring is provided on the surface (the surface without adhesive) of the film F of the supply roll 15. Due to the elastic bias of 44, they are in contact with each other 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 K of the supply roll 15 and the roller 30 in the same manner as in the above embodiment.

Since the peeling noise preventing action by such a configuration is substantially the same as the configuration shown in FIG. 4, a detailed description thereof will be omitted, but in this embodiment, the film F is peeled in the peeling direction by the roller 30 attached to the rotating arm 42. Since the guide is provided to assist the peeling, the roller 30 can be reliably held and the roller 30 can be biased to the supply roll 15 more easily.

(Effect of the Invention) As described above, according to the present invention, the peeling assisting roller 30 that comes into contact with the outer peripheral surface of the supply roll 15 that is transparent and is made of the film F with the adhesive, and the freely rotating roller 30 are supplied. Elastic biasing members 33, 3 that bias the roll 15 in the axial direction.
4, the roller 30 elastically urges the outer peripheral surface of the film F without the adhesive, so that the film F is fed out and the diameter of the supply roll 15 is reduced. Can always be elastically biased.

Therefore, the film F is elastically biased and the supply roll 1
5 is a structure that is movable in the axial direction of the roller 5, and is reversed and fed at the freely rotating roller 30 portion for peeling assistance,
The film F wound into a roll is peeled off from the adhesive at a constant speed, the generation of peeling noise is suppressed, and the vibration due to peeling is prevented.

[Brief description 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 view of a laminated body in which films are laminated, and FIG. 3 is a schematic view of a conventional film supply mechanism.
FIG. 5 is an explanatory diagram for explaining the principle and one embodiment of the present invention.
The drawing is a plan view of another embodiment of the present invention. In the figure, 1 ... Laminator, 2 ... Board, 4 ... Label, 6 ... Turning roller, 8 ... Cutting device, 12 ... Winding roll, 14 ... Unwinding shaft, 15 ... Supply roll, 16 ... Guide roll 30 ... Rollers for assisting peeling, 31, 40 ... Frame, 32 ... Guide groove (moving means) 33 ... Push spring (elastic biasing member, elastic biasing means), 4
0a, 41 ... Fixed shaft 42 ... Rotating arm (moving means), 44 ... Winding spring (elastic biasing member / elastic biasing means) A ... Stacked label, C ... Cutting line F ... Film, K: Center of supply roll L: Label piece, M: Laminate S: Mount

Claims (1)

[Claims] 1. A peeling noise reducing device for a laminator for laminating a strip-shaped medium to be laminated, which is transported on a predetermined path, and a transparent and adhesive strip-shaped film, which is fed from a supply roll. A roller for assisting peeling of the film, which is in contact with the outer peripheral surface of the roll, is an elastic urging means, and a moving means that follows the axial direction of the supply roll along with the reduction of the diameter of the supply roll by feeding the film. A peeling noise reducing device for a laminator, comprising: