JPH11179820A - Label punching device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable smooth and stable securing of a punching performance for an adhesive label for a long time without the necessity to perform an operation to clean a punching blade accompanied by the suspension of a punching operation. SOLUTION: This label punching device is equipped with a punching machine 3 having a punching blade 31 which punches a sheet for a label with a pressure- sensitive adhesive layer formed on the back face, in a label contour shape and an antiadhesive agent supply machine 7 which supplies to the part to be punched of the sheet for a lab the antiadhesive agent for preventing a adhesive which forms the adhesive layer from sticking to the punching blade 31. Thus it is possible to prevent the adhesive on the back face of the sheet for a label from sticking to the punching blade 31 by the antiadhesive agent to be supplied to the part to be punched from the antiadhesive agent supply machine 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a label punching device,
In particular, the present invention relates to a label punching apparatus that can ensure smooth and stable punching performance for a long time without performing a special operation for cleaning a punching blade.

[0002]

2. Description of the Related Art An adhesive label on which a pattern, characters, and the like are printed is releasably attached to the surface of a separator, and is manufactured by, for example, a punching operation as shown in FIG. Below the punching blade (31) formed in a frame shape, a long raw material sheet (23) composed of a separator (11) and a label sheet (22) removably adhered to the upper surface thereof is provided. Stopping the feeding operation of the raw material sheet (23) and simultaneously lowering the punching blade (31) to punch out only the upper label sheet (22) from the separator (11) into the label contour shape. . Then, the inside of the label outline shape (the punching blade (3
The inside of 1) becomes the adhesive label (26). When the raw material sheet (23) is intermittently transferred while repeating this punching operation, a large number of adhesive labels arranged at a predetermined interval on the upper surface of the separator (11) are obtained.

[0003]

However, when the adhesive label (26) is punched from the label sheet (22), the cutting edge of the punching blade (31) reaches the adhesive layer (21).
In the conventional case, the pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer (21) adheres to the cutting edge, thereby hindering a smooth punching operation.
Specifically, when the adhesive and the punching blade (31) adhere,
The entirety of the raw material sheet (23) is in an adhesive state on the punching blade (31), and the raw material sheet (23) floats or is taken up by the ascending punching blade (31), or the punched adhesive label (26) Is separated from the separator (11) and fitted into the punching blade (31), whereby smooth punching of the adhesive label (26) is hindered.

[0004] In order to solve the above disadvantages, a punching blade (31)
In some cases, smooth punching can be ensured by cleaning the cutting edge with a cleaning liquid or the like, but in such a case, it is necessary to interrupt the punching work at the time of the above cleaning, so the cleaning work is troublesome. In addition, there remains a problem that after the cleaning, the smoothness of the punching gradually decreases as the next cleaning time approaches.

[0005] The present invention has been made in view of the above-mentioned point, and a smooth and stable punching performance of an adhesive label can be ensured for a long period of time without performing a punching blade cleaning operation that requires interruption of the punching operation. The task is to be able to do so.

[0006]

According to a first aspect of the present invention, there is provided a punching blade for punching a label sheet having a pressure-sensitive adhesive layer on a back surface into a label contour shape. A punching machine comprising: and an anti-adhesive agent supply device for supplying an anti-adhesive agent for preventing the adhesive constituting the adhesive layer from adhering to the punching blade to the punched portion of the label sheet. It is to be.

According to the above technical means, since the label sheet is punched by the punching blade together with the adhesion preventing agent supplied to the punched portion of the label sheet, there is no fear that the adhesive will adhere to the punching blade. . As in the invention according to claim 2, "further comprising a sheet supply means for sequentially supplying the label sheet to the punching machine, wherein the anti-adhesive agent supply machine sends the label sheet to the punching machine. In addition to the above-mentioned "provided on the supply side", as in the invention of claim 3, "the anti-adhesion agent supply device is provided near the punching blade in the punching machine" Is also good.

According to the fourth aspect of the present invention, the "adhesion preventing agent supplying device is a sprayer for spraying a powdery anti-adhesion agent onto the punched portion". The surface of the adhesive label punched from the label sheet does not get wet as in the case of applying or spraying the chemical solution of the above, and even if the label sheet is formed of a material weak to moisture, the adhesive label shrinks and deforms. There is no inconvenience such as dripping or deterioration.

[0009]

As described above, according to the first to fourth aspects of the present invention, the adhesive on the back surface of the label sheet is produced by the adhesion preventing agent supplied to the punched portion from the adhesion preventing agent supply machine. Can be prevented from adhering to the punching blade, so that a smooth and stable punching performance of the adhesive label can be ensured for a long period of time without performing a punching blade cleaning operation that requires interruption of the punching operation.

Since the adhesive can be prevented from adhering to the cutting edge of the punching blade, the cutting edge is not stained with the adhesive. Therefore, there is no room for the adhesive to adhere to the surface of the adhesive label as a product from the cutting edge, and the inconvenience of the adhesive label being stained with the adhesive can be prevented. According to the invention of claim 4, there is no fear that the adhesive label is deformed or deteriorated as described above.

[0011]

Next, embodiments of the present invention will be described. FIG. 1 is a schematic view of a label manufacturing apparatus according to an embodiment of the invention of claim 1 and the subordinate concepts of the inventions of claims 2 and 4, wherein the label production apparatus is provided downstream of a raw material roll (5). Is a printing machine (6), a sprayer (7) as an anti-adhesion agent supply machine,
A punching machine (3) and sheet pulling rolls (55) and (56) as sheet feeding means are sequentially arranged in this order. still,
The assembly of the sprayer (7) and the punching machine (3) constitutes a label punching apparatus to which the present invention is applied.

The details of each section will be described below. [About web roll (5) and printing press (6)]
(5), a long label sheet (22) having an adhesive layer (21) formed on the back surface thereof and a separator (11) releasably attached to the back surface of the adhesive layer (21). The raw material sheet (23) as shown in FIG. 2 is wound around the raw material roll (5).
The raw material sheet (23) pulled out from the printer is supplied to a printing machine (6) so that predetermined characters and figures are printed at a constant pitch on the surface of the label sheet (22). The label sheet (22) may be made of various materials such as synthetic resin such as polyester or paper. [Label Punching Apparatus] Next, a label punching apparatus according to the present invention, which is constituted by the sprayer (7) and the punching machine (3), will be described. * About sprayer (7) * Sprayer which composes label punching device together with punching machine (3)
(7) is disposed downstream of the printing press (6). The sprayer (7) is configured as shown in FIG. 3, and is printed by the printing unit (printer (6)) on the label sheet (22) attached to the surface of the raw material sheet (23). Portion), that is, a nozzle (71) for spraying the powder as an anti-adhesion agent to the punched portion. The nozzle (71) is covered with a rectangular box-shaped scattering prevention hood (72) that opens downward, and the nozzle (71) is connected to the powder storage container (74) via a flexible tube (73).
The powder storage container (74) contains a powder (75) as an anti-adhesion agent containing 60% by weight of starch and 40% by weight of calcium carbonate.

A pump (7) is provided in the powder storage container (74).
7) → Pressure chamber (78) → Open / close valve (79) → Pressurized air supply circuit (70) connected to powder storage container (74) is connected, and pump (77)
The pressure air generated in the step (1) is stored in the pressure chamber (78). * About the punching machine (3) * The punching machine installed downstream and adjacent to the sprayer (7)
(3) includes a holder (33) for holding a punching blade (31) for punching a label sheet (22) into a label contour shape, and a receiving table (35) provided at a lower opposing portion thereof. I have. [Others] On the downstream side of the punching machine (3),
Pull out the raw material sheet (23) from (5) and put it on the printing machine (6)
Pulling rolls (55) and (56), which are sheet feeding means for supplying to the sheet and punching machine (3), and the scrap removing roll (5
7) and a product take-up roll (58) are provided. [Label Manufacturing Operation] Next, the actual operation of the label manufacturing apparatus according to the above embodiment will be described.

The raw material sheet (23) pulled out from the raw material roll (5) is supplied to a printing machine (6), and characters and graphics are printed on the surface of the label sheet (22) by the printing machine (6). Printed at a constant pitch. Next, a powder as an anti-adhesion agent is sprayed on a label sheet (22) on the upper surface of the raw material sheet (23) fed from the printing machine (6) with a sprayer (7). It is sprayed over a range slightly wider than the contour of the label surrounding the printing portion on the label sheet (22). That is, the on-off valve (79) shown in FIG.
(79) → powder storage container (74) → flexible tube (73) → nozzle (7
The pressurized air is supplied through a path connected to 1), and the powder (75) in the powder storage container (74) is sprayed from the nozzle (71) onto the surface of the label sheet (22) together with the pressurized air.

Next, the surface of the label sheet (22) on which the powder is sprayed is punched into a label contour shape by a punching blade (31) of a punching machine (3). That is, when the printing portion (on which powder is sprayed) on the surface of the label sheet (22) is fed into the punching machine (3), the feeding operation is temporarily stopped, and then the punching blade (31) is moved to the holder (33). At the same time, the cutting edge of the punching blade (31) descends and penetrates from the surface of the label sheet (22) to which the powder adheres to the lower surface of the pressure-sensitive adhesive layer (21). Then, at the time of this punching, the pressure-sensitive adhesive layer (21) is kept in a state where the powder (75) on the surface of the label sheet (22) adheres to the cutting edge of the punching blade (31).
Since it penetrates to the part, there is no inconvenience that the adhesive of the adhesive layer (21) adheres to the cutting edge.

When the punching is completed and the holder (33) is raised to the initial position, the raw material sheet (23) is sent out to the downstream side, and unnecessary portions located outside the label contour shape in the label sheet (22). Is wound on a scrap removing roll (57). As a result, a continuous label body in which the adhesive labels (26) (26) punched from the label sheet (22) are arranged at predetermined intervals on the surface of the long separator (11) is wound on the product winding roll (58). Can be

Since the surface of the adhesive label (26) (26) of the continuous label wound on the product take-up roll (58) is in a state where the above-mentioned powder as the anti-adhesion agent is adhered, the product Even when the printing ink on the surface of the adhesive label (26) (26) wound on the winding roll (58) is not completely dried,
There is no inconvenience that the printing ink adheres to the back surface of the separator (11) wound on the product take-up roll (58). [Second Embodiment] Next, a second embodiment will be described with reference to FIG.

This corresponds to the invention of claims 3 and 4 which are subordinate concepts of claim 1, and is surrounded by a punching blade (31) mounted on a holder (33) of a punching machine (3). The nozzle (71) of the sprayer (7) is disposed inside (near the punching blade (31)). Further, the nozzle (71) applies the above-described first to the surface of the label sheet (22) in the raw material sheet (23).
It is to spray powder as in the second embodiment,
Except for the disposition position of the atomizer (7), the sprayer (7) is formed in the same manner as in the first embodiment. In this thing, punching blade (31)
Since the nozzle (71) is disposed in the surrounding space, there is an advantage that the entire punching device can be reduced in size as compared with the first embodiment.

When the powder is sprayed by the sprayer (7),
The powder may be sprayed only on the punched portion on the label sheet (22), or the powder may be continuously sprayed on the entire upper surface of the label sheet (22).

[Brief description of the drawings]

FIG. 1 is an overall schematic diagram of a label manufacturing apparatus according to an embodiment of the present invention.

FIG. 2 is an enlarged sectional view of a raw material sheet (23).

FIG. 3 is a detailed view of the sprayer (7).

FIG. 4 is an explanatory view when punching a label sheet (22).

FIG. 5 is an enlarged sectional view of a main part showing a modification of the punching machine (3).

FIG. 6 is an explanatory view of a conventional example.

[Explanation of symbols]

 (3) ・ ・ ・ Punching machine (7) ・ ・ ・ Anti-adhesive agent supply device (21) ・ ・ ・ Adhesive layer (22) ・ ・ ・ Label sheet (31) ・ ・ ・ Punching blade (75) ・ ・・ Anti-adhesive

Claims (4)

[Claims] 1. A punching machine having a punching blade for punching a label sheet having a pressure-sensitive adhesive layer formed on a back surface into a label contour shape, and an adhesive forming the pressure-sensitive adhesive layer being attached to the punching blade. A label punching apparatus, comprising: an anti-adhesion agent supply device for supplying an anti-adhesion agent to be prevented to the punched portion of the label sheet. 2. The apparatus according to claim 1, further comprising a sheet supply unit configured to sequentially supply the label sheet to the punching machine, wherein the anti-adhesion agent supplying machine is provided on a supply side of the label sheet with respect to the punching machine. The label punching apparatus according to claim 1, wherein: 3. The apparatus according to claim 1, wherein the anti-adhesion agent supply device is provided near the punching blade in the punching machine.
Label punching equipment. 4. The label punching apparatus according to claim 1, wherein the antiadhesive agent supply device is a sprayer that sprays a powdery antiadhesive agent onto the punched portion.