KR200292836Y1 - Device for coating of label - Google Patents

Abstract

The present invention relates to an apparatus for coating a liquid epoxy coating on a surface of a level. In the apparatus for coating a liquid epoxy coating on the surface of the level, the conveying means 24 and the label 32 conveyed by the conveying means 24 are disposed in a linear direction by placing the label to be coated on a transparent label substrate. The detecting means 42 and 44 for detecting and the injector 48 are arranged so that a plurality of rows are arranged obliquely with respect to the conveying direction of the label, and a plurality of liquid coatings are applied to the label detected by the detecting means in the form of a coating line. It is characterized by consisting of a coating liquid supply stage 16 for applying water.

Description

Label Coating Equipment {DEVICE FOR COATING OF LABEL}

The present invention relates to a coating apparatus for a label, and in particular, in the process of moving a label, the surface of the label is arbitrarily divided so that the liquid coating is applied to the surface of the label in the form of a plurality of coating lines parallel to the moving direction. It relates to a coating apparatus for a label so that the coating can be coated with the coating covering the entire surface of the label.

Labels normally used for manufacturer's marks or trademarks, such as home appliances, are required to be durable so that the manufacturer's marks or trademarks are not erased during the life of the product. It is known to coat relatively soft epoxy coatings on these labels in order to meet these needs and also to make the trademark or similar marks look beautiful.

One prior art method of coating an epoxy coating on the surface of a label is described in FIGS. 1-5.

1 shows that a plurality of labels 3 are printed on a label 2 to which the backing paper 1 is attached. In the illustrated example, the label 3 is shown as having a circular contour, but such a label may have various contours other than circular. The label 3 is cut in the margin of the label paper 2 so that only the label 3 remains on the backing paper 1 (FIG. 2). Conventionally, in the process of coating the epoxy coating on the label (3), a liquid container containing a liquid coating liquid is infused by a human hand, and a suitable amount of the liquid epoxy coating liquid (4) is supplied to the surface of the label (3). The liquid epoxy coating liquid supplied to the surface of the label 3 is spread evenly on the label 3 without departing from the periphery of the label 3 due to the property of the surface tension. Thereafter, the epoxy coating solution 4 is cured after a certain time has elapsed to form a coating 5 on the label (3).

Such a label coating method of the prior art is inefficient because it takes a lot of labor and time because it is performed by a lot of manual work.

The present invention has been made in view of the above-described conventional art, and an object thereof is to provide an efficient apparatus for coating a label with an automated mass production system regardless of the outline shape of the label.

To this end, the present invention provides a label coating device, the device of the present invention is disposed on a transparent label substrate to be coated on the conveying means for conveying in a linear direction, detecting means for detecting the label conveyed by the conveying means, It is characterized in that it comprises a coating liquid supply stage for applying a plurality of liquid coatings in the form of a coating line to the label detected by the detecting means is arranged in a plurality of rows arranged inclined with respect to the conveying direction of the label. The detection means is composed of a pair of infrared light emitting diodes and an optical sensor, and the coating liquid supplying holes are arranged in a plurality of rows inclined with respect to the conveying direction of the label on the light emitting substrate on which the light emitting diodes are arranged, and in front of each coating liquid supplying hole. The light emitting diode is disposed. The coating liquid supplying end may be transported on the detecting means such that the axis of the coating liquid supplying hole formed in the light emitting substrate of the detecting means coincides with the axis of the pouring liquid of the coating liquid supplying end.

Referring to the present invention in more detail based on the accompanying drawings as follows.

1 is an exploded perspective view of a label showing that a plurality of labels are printed on the label to which the backing is adhered.

Figure 2 is a perspective view of a label showing that only the label is adhered on the backing paper by the cutting portion of the label except the label in the label paper.

3 to 5 are cross-sectional views illustrating a process of coating an epoxy coating on the surface of a label according to the prior art.

Figure 6 is a plan view of the subject innovation label coating device.

7 is a schematic side cross-sectional view of the device shown in FIG. 6.

Figure 8 is a schematic cross-sectional view similar to Figure 7 showing the process of moving the label carrier in the device of the present invention.

9 is a cross-sectional view of a liquid coating pour device for supplying an epoxy coating on a label.

10 to 12 are partial cross-sectional view showing a process in which the label carrier to move the label paper carrier to be coated and the liquid coating is supplied and applied,

Figure 13a-13i is an explanatory view showing a continuous process in which a liquid coating is applied to the surface of the label in the course of moving the label.

Explanation of Signs of Major Parts of Drawings

32 ... label 42 ... infrared light emitting diode

44 ... light sensor 46 ... coating solution supply hole

48 ... Injector 76 ... Liquid Coating

6 to 8 show the label coating apparatus of the present invention. The apparatus consists of a label transfer stage 12, a label detection stage 14, and a coating liquid supply stage 16 on the base 10 in turn. The coating liquid supply stage 16 has a first position, which is a non-use position, and a second position, which is moved to and used above the label detection end 14, as will be described in detail later.

On the base 10, guide rails 18 and 20 are disposed in the first and second half to move the label transfer end 12 and the coating liquid supply end 16, respectively. The guide rails 18 and 20 have a conventional structure and each rail element is arranged in parallel in pairs. On the other hand, a plurality of feed rollers 22 are arranged above the guide rail 20 adjacent to the rear end of the guide rail 18 for guiding the label transfer stage 12.

The label conveying end 12 is composed of a rectangular conveying frame 24, which is conveyably coupled to the guide rail 18 on the guide rail 18. Support pieces 26 are installed on both front and rear sides of the transfer frame 24 so that the transparent glass plate 28 can be disposed.

The label substrate 30 is placed on the transparent glass plate 28. The label substrate 30 is transparent and is arranged with a number of labels 32 to be coated thereon. Such a label substrate 30 corresponds to a conventional label as long as the label 30 is printed and cut in a conventional manner. Ordinary label backing is usually opaque, but the label substrate 30 corresponding thereto in the present invention is transparent.

In the transfer frame 24 of the label transfer stage 12 on which the transparent glass plate 28 on which the label substrate 30 is placed is disposed, the pressure sensor 34 in the form of a load cell is disposed on the lower side of the transparent glass plate 28. A drive cable 36 or other drive means extending from a drive system (not shown) which 28 is placed on the transfer frame 24 to drive the label transfer stage 12 when its load is detected therefrom. It can be driven forward by

The conveying frame 24 stops conveying at the end of the guiding rail 18 after being conveyed along the guiding rail 18. At this time, the transparent glass plate 28 disposed on the conveying frame 24 and conveyed together with the conveying frame 24 is continuous at the position where the guide rail 18 ends and arranged on the upper part of the guide rails 18 and 20. By the feed roller 24, it can continue to advance to the label detection end 14 side. The transparent glass plate 28 can be conveyed along the feed roller 22 to the final discharge position of the base 10.

Next, the label detecting end 14 is photodetected by the label 32 on the label substrate 30 to be transported by being placed on the transparent glass plate 28 on the conveying frame 24 and transferred to the label detecting end 14. The coating solution may be supplied from the coating solution supply stage 16 to the label 32.

The label detecting end 14 is composed of a light emitting substrate 38 and a light receiving substrate 40 which are disposed above and below a path through which the transparent glass plate 28 passes. A plurality of infrared light emitting diodes 42 are arranged on the light emitting substrate 38 toward the lower light receiving substrate 40 side, and a plurality of light sensors 44 are arranged on the light receiving substrate 40 corresponding to the light emitting diodes 42. It is. The arrangement of these light emitting diodes 42 and the light sensor 44 is described in detail later.

On the other hand, a plurality of coating liquid supply hole 46 is arranged in the upper light emitting substrate 40 in the label detection end (14). The arrangement pattern of these coating liquid supply holes 46 depends on the arrangement pattern of the pouring machine 48 of the coating liquid supply stage 16 which will be described later in detail.

The pouring machine 48 of the coating liquid supply stage 16 for supplying and applying the liquid epoxy coating liquid to the label is illustrated in FIG.

This injector 48 used in the present invention is widely used, for example, in the semiconductor manufacturing field, and is a form of a conventional injector for supplying a fixed amount of adhesive or other liquid substance.

In FIG. 9, the pouring machine 48 shows one unit pouring machine. This pouring machine 48 is composed of a coating liquid holding tank 50, a first pneumatic cylinder 52, a second pneumatic cylinder 54, and a solenoid actuator 56 arranged in series from the lower side. The coating liquid container 50 has a coating liquid ejection opening 60 having a valve sheet 58 at the bottom thereof, and the valve head 62 is separated from the valve sheet 58 by a pressure plate 64. The valve body 68 which is formed and upwardly supported by the spring 66 is installed. The upper portion of the coating liquid container 50 is composed of a flexible diaphragm 70.

The piston 72 of the first pneumatic cylinder 52 is pressurized to the upper pressure plate 64 of the valve body 68 through the diaphragm 70, and the pneumatic pressure supplied to the first pneumatic cylinder 52 is provided. May be supplied or interrupted by the operation of the piston 74 of the second pneumatic cylinder 54 and the pneumatic pressure of the second pneumatic cylinder 54 is controlled by the solenoid actuator 56.

Such a pouring machine 48 is well known in the art as the unit pouring machine. In the present invention, a plurality of such injectors 48 have a structure in which the coating liquid receiving tank 50 is shared, and an arrangement structure of the plurality of injectors 48 is described in detail later.

The transfer frame 24 for transporting the transparent glass plate 28 takes over the transparent glass plate 28 to the transfer roller 22 arranged in front of it, returns to the initial starting position, and the transparent glass plate taken over the transfer roller 22. 28 continues to advance to the label detection end 14 by these feed rollers 22. As shown in FIG.

On the label detection end 14, the coating liquid supply end 16 is moved and disposed in the process of coating the label 32 (FIG. 9). At the superposed label detection stage 14 and the coating liquid supply stage 16, the level 32 is coated with a liquid epoxy coating.

In the present invention, the surface of the label 32 is arbitrarily partitioned in the process of moving the label 32 so that the liquid epoxy coating liquid is applied to the surface of the label 32 in the form of a plurality of coating lines parallel to the moving direction. The purpose is to allow this coating to coat the coating covering the entire surface of the label 32.

To this end, it is required that the liquid epoxy coating liquid is supplied to one label 32 in the form of a plurality of coating lines through the plurality of injectors 48. However, since the pouring machine 48 has the structure as mentioned above, its width or diameter cannot be greatly reduced.

Accordingly, the injector 48 is repeatedly arranged at an inclined angle with respect to the advancing direction of the label 32 so that the longitudinal axis of the adjacent injector 48 in the advancing direction of the label 32 can be arranged in close proximity. The liquid epoxy coating liquid can be applied in the form of a plurality of coating lines parallel to and close to the moving direction.

In FIG. 7, a plurality of liquid injectors 48 in the coating liquid supply stage 16 are arranged in a repeating arrangement in which the inclination angle is formed with respect to the moving direction (arrow F) of the label substrate 30 on which the labels 32 are disposed. Is showing. Therefore, in the first row, the interval between the longitudinal axis of the first main injector and the second second injector can be narrowly defined. This spacing is also maintained between the final injector of the first pouring sequence and the first injector of the second pouring sequence.

Correspondingly, the arrangement of the coating liquid supply holes 46 formed in the light emitting substrate 38 is also arranged in a repeating arrangement in which the inclined angle is arranged with respect to the moving direction (arrow F) of the label substrate 30.

The infrared light emitting diode 42 disposed downward from the light emitting substrate 38 is disposed in front of each coating liquid supply hole 46 of the light emitting substrate 38, and the light receiving substrate 40 corresponds to a plurality of optical sensors ( 44 is disposed.

13A-13I illustrate a continuous process in which the liquid coating 76 is applied to the surface of the label 32 as the label 32 moves.

FIG. 13A shows the arrangement of the light emitting diodes 42, the coating liquid supply hole 46, and the pouring liquid 48 of the inclined rows forming the inclined angle on the light emitting substrate 38 with respect to the moving direction of the label, and the respective light emitting diodes and coating liquid supply holes. And the axis 78 extending the longitudinal axis of the pouring machine. The spacing between these axes 78 is smaller than the size of the substantial width or diameter of the pourer 48.

13B shows that the label 32 moves in the arrow direction F with respect to the light emitting substrate 38. The label 32 is conveyed by the conveying frame 24 of the label conveying stage 12 by being placed on the transparent glass plate 28 in a state in which the label 32 is disposed on the label substrate 30 as described above. In the following, only the label 32 is shown to be easy to explain the invention. In FIG. 13B, the advancing edge of the label 32 has not yet reached the light emitting diode 42 and does not trigger the corresponding light sensor 44.

In FIG. 13C, a portion of the advancing edge of the label 32 blocks the light path of the light emitting diode 42 which is first in contact with it so that the corresponding optical sensor 44 is triggered and the edge of the label 32 is coated liquid supply hole. After the time that reaches the coating liquid outlet 60 of the pouring machine 48 located in the center of the 46 has elapsed, the pouring machine 48 is operated so that the liquid coating 76 can be supplied to the label 32. Be prepared.

In FIG. 13D, the label 32 continues to advance so that the dispenser 48 begins supplying the liquid coating 76 in the form of a coat line to the surface of the label 32. The label 32, on the other hand, continues to move forward and is detected by the other light emitting diodes 42 where the other part of the edge is first closest to it and ready for the injector 48 to be operated.

In FIG. 13E, the liquid coating 76 in the form of a coating line that is first applied to the surface of the label 32 has a light emitting diode 42 that detects a portion of the advancing edge of the first label 32. The optical path to the optical sensor 44 is recovered from the rear end of the rear end to block the operation of the pouring machine 48 so that the liquid coating 76 is no longer supplied. However, the operation of the other injector 48 triggered by the light sensor is still maintained.

In Fig. 13E-H, this process is repeated repeatedly so that the liquid coating 76 in the form of a coating line is applied to the entire surface of the label 32. These liquid coatings 76 are laterally diffused from the surface of the label 32 in an uncured state so that a uniform coating is applied to the entire surface of the label 32.

After the entire label 32 of the label substrate 32 is coated with a coating, the transparent glass plate 28 on which the label substrate 30 is placed is continuously advanced through the feed roller 22 to discharge the base 10. It is discharged to the side and the operator can move the transparent glass plate 28 on which the label substrate 30 on which the entire label 32 of the label substrate 32 is applied as a coating to a separate coating hardening facility can be cured. Make sure

The coating applied uniformly on the entire surface of the label 32 protects the surface of the label 32 after curing and makes it appear beautiful.

In the above description, the label 32 is merely shown as a circular shape, but the label 32 may have various rims and shapes.

As such, the present invention provides an efficient apparatus for coating a label with an automated mass production system regardless of the contour shape of the label.

Claims (3)

In the apparatus for coating a liquid epoxy coating on the surface of the level, the conveying means 24 and the label 32 conveyed by the conveying means 24 are disposed in a linear direction by placing the label to be coated on a transparent label substrate. The detecting means 42 and 44 for detecting and the injector 48 are arranged so that a plurality of rows are arranged obliquely with respect to the conveying direction of the label, and a plurality of liquid coatings are applied to the label detected by the detecting means in the form of a coating line. Label coating device, characterized in that consisting of a coating liquid supply stage 16 for applying water. The method according to claim 1, wherein the detecting means comprises a pair of infrared light emitting diodes 42 and an optical sensor 44, and a plurality of rows inclined with respect to a conveying direction of a label are repeated on a light emitting substrate on which the light emitting diodes are arranged. The coating liquid supply hole (46) is arranged, characterized in that the light emitting diodes (42) are disposed in front of each coating liquid supply hole (46). 4. The coating liquid supplying stage according to claim 2 or 3, wherein the axis of the coating liquid supplying hole 46 formed in the light emitting substrate of the detecting means coincides with the axis of the pouring machine 48 of the coating liquid supplying end 16. Apparatus characterized in that 16 can be conveyed.