KR20140023180A - Roller structure and forming method of the same - Google Patents

Roller structure and forming method of the same Download PDF

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Publication number
KR20140023180A
KR20140023180A KR1020120090318A KR20120090318A KR20140023180A KR 20140023180 A KR20140023180 A KR 20140023180A KR 1020120090318 A KR1020120090318 A KR 1020120090318A KR 20120090318 A KR20120090318 A KR 20120090318A KR 20140023180 A KR20140023180 A KR 20140023180A
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KR
South Korea
Prior art keywords
roller
roller body
heat
circumferential surface
heater
Prior art date
Application number
KR1020120090318A
Other languages
Korean (ko)
Inventor
유지언
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유지언
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 유지언 filed Critical 유지언
Priority to KR1020120090318A priority Critical patent/KR20140023180A/en
Publication of KR20140023180A publication Critical patent/KR20140023180A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/02—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to separate articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0808—Details thereof, e.g. surface characteristics

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  • Rolls And Other Rotary Bodies (AREA)
  • Coating Apparatus (AREA)

Abstract

The present invention relates to a roller structure and a method of forming the same. According to one embodiment of the present invention, the method of forming a roller structure includes a step of mounting a roller body (22) in the combination groove (110) of a lower heater mold (100); a step of arranging a heat melting material (21A); and a step of molding a coating roller (20).

Description

ROLLER STRUCTURE AND FORMING METHOD OF THE SAME

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller structure and a method for forming the same, and more particularly, to a roller structure having improved bonding property and a method for forming the same, to prevent separation of an application layer of a coating roller and a roller body for applying a conductive paste.

As the functions of electronic products are diversified and the spread of portable electronic devices increases, the parts constituting these electronic devices are also becoming more functional and bulky.

As an example, multilayer ceramic capacitors (MLCCs), which are one of the main chip components in electronic products, have been actively developed in the direction of miniaturization, thinning, and large capacity.

Such microchip components generally form an external electrode by applying a conductive paste for forming an external electrode to an electronic component, and then curing it in a high temperature oven.

However, in recent years, as the miniaturization and thinning of electronic components are continuously demanded, the size of electronic components is becoming smaller and smaller. Therefore, when the conductive paste is applied to the electronic components, application precision is a problem.

Therefore, there is a demand for an apparatus capable of applying the conductive paste to the microelectronic component more precisely.

Conventional conductive paste coating device is disclosed in Korean Patent Registration No. 10-5988886 and shown in Figures 1 and 2, the edges of the chip 10 is maintained at a predetermined interval while being projected by the transfer device Coated roller 20 with a carrier tape 50 and a groove 21a formed in a circumferential direction with a predetermined width so as to be rotated and driven on a transport path of the carrier tape 50 so as to correspond to the terminals 11 on an outer circumferential surface thereof. 30, and paste storage tanks 25 and 35 for supplying the conductive paste 40 to the grooves 21a of the application rollers 20 and 30.

The paste 40 of the reservoirs 25 and 35 is provided with feed rollers 27 and 37 which are partially submerged and rotated in contact with the application rollers 20 and 30. The feed rollers 27 and 37 are provided. The excess amount of the paste 40 applied to the application rollers 20 and 30 from the surface of the application roller 20 is removed by the scrapers 26 and 36.

The application rollers 20 and 30 are provided so that two are rotationally driven on the conveyance path of the electronic component, that is, the carrier tape 50, and are disposed so that the outer peripheral surfaces thereof face each other.

In addition, each application roller 20, 30 is provided with an application layer 21, 31 on the outer peripheral surface of the roller body.

The coating layers 21 and 31 are actually used to apply the conductive paste to the terminal portions of the carrier tape 50. Therefore, since the coating layers 21 and 31 are in continuous contact with the conductive paste and the carrier tape 50, the coating layers 21 and 31 are formed of a material having high wear resistance and protecting the carrier tape 50. Specifically, the coating layers 21 and 31 may be made of a material such as rubber or urethane having elasticity.

The application rollers 20 and 30 are formed of a heterogeneous metallic material different from the application layer of the roller body, and adopt an adhesive method using an adhesive to bond the roller body and the application layer.

That is, in the conventional forming method of the application roller, the adhesive is applied around the outer circumferential surface of the roller body, and the adhesive is applied to surround the outer circumferential surface of the roller body to which the adhesive is applied, and then the upper and lower portions are connected to connect the ends of the coating layer. It has a molding process that is integrated by heat fusion into the heater mold.

Therefore, the conventional method of forming the application roller has a problem in that it is not only troublesome in the work to apply the adhesive and heat fusion with the heater mold, but also the roller body and the coating layer are easily detached because the adhesive portion is vulnerable.

The present invention was created in view of the above-mentioned problems, and an object thereof is to integrally combine the roller body and the application layer of the application roller without using an adhesive, and to provide a bonding force between the application layer and the roller body. It is to provide a roller structure and its forming method improved in the structure so that it can be improved.

The present invention for achieving the above object is the step of seating the roller body so as to generate a gap in the coupling groove of the lower heater mold,

A heat-melt material that forms an application layer of an application roller on an upper heater mold disposed on an upper side of the lower heater mold and having a hollow having a first and second flow paths communicating with a gap between an inner circumferential surface of the coupling groove and a roller body at a lower side thereof. Placing it,

After lowering the pressurized heater mold disposed above the upper heater mold to pressurize and heat the heat meltable material to liquefy the heat meltable material, the liquefied heat meltable material is passed through the first and second flow paths. It is characterized in that it comprises the step of forming a coating roller in which the heat-melting material and the roller body are integrated by flowing into the gap between the inner circumferential surface of the coupling groove and the roller body and integrally curing the outer peripheral surface of the roller body.

The method may further include forming an annular groove in which the liquefied heat-melt material flows into the upper and lower sides of the roller body near the outer circumference.

Another characteristic element of the present invention is a roller structure, the coating layer is bonded to the outer peripheral surface of the roller body,

Annular grooves are formed on the upper and lower sides of the roller body near the periphery of the outer circumference thereof,

The coating layer is bonded to surround the outer periphery and the upper and lower edge portions of the roller body.

First, it is possible to easily combine the roller body and the coating layer integrally without using an adhesive, it is possible to produce in a single mold operation has a useful effect of improving productivity.

Second, in the case where the groove is formed in the roller body, the roller body and the coating layer are firmly coupled as the liquid molten heat-melt material is introduced into the groove and then integrally coupled.

1 is a configuration diagram showing a conventional conductive paste coating device.
2 is a perspective view showing an application roller.
Figure 3 is a schematic view showing a method of forming a roller structure according to the present invention.
Figures 4a, 4b, 4c, 4d sequentially showing the state of use of the present invention.
5 is a perspective view showing a roller structure of the present invention.
Figure 6 is a perspective view of the roller body of the present invention.
7 is a cutaway perspective view of FIG. 5;

The present invention provides a roller structure and a method for forming the same, which firmly bond the roller body and the application layer of the application roller for applying the conductive paste and easily bond the roller body and the application layer without applying an adhesive. It is about.

3 and 4, the roller structure according to the present invention, the step of seating the roller body 22 so that a gap occurs in the coupling groove 110 of the lower heater mold 100, and An upper heater disposed above the lower heater mold 100 and having a hollow 210 having first and second flow paths 222 and 224 communicating with a gap between the inner circumferential surface of the coupling groove 110 and the roller body 22 on the lower side. Arranging the heat-melt material 21A constituting the coating layer 21 of the coating roller 20 on the mold 200, and the pressurized heater mold 300 disposed above the upper heater mold 200. Down to pressurize and heat the heat meltable material 21A to liquefy the heat meltable material 21A, and then the liquefied heat meltable material 21A through the first and second flow paths 222 and 224. Flow into the gap between the inner peripheral surface of the coupling groove 110 and the roller body 22 and the outer peripheral surface of the roller body 22 It is composed of a step of molding the application roller 20 in which the heat-melt material 21A and the roller body 22 are integrally cured in an integral manner.

In more detail, the lower heater mold 100 has a coupling groove 110 formed at an upper side of the center, and the coupling pin 115 is fitted into the coupling hole 22a of the application roller 20 at the center of the coupling groove 110. ) Is formed.

The heat meltable material 21A may adopt a rubber material which can be melted as it is heated, but is not limited to the rubber material.

The upper heater mold 200 has a hollow 210 having a seating jaw 212 is formed in the center so that the heat-melt material 21A is seated in the center, and the roller body 22 is coupled to the lower side of the hollow 210. First and second flow paths 222 and 224 are formed in communication with the gap generated in the seated state 110.

The first and second flow paths 222 and 224 have a function of guiding the flow of the liquefied hot melt material 21A.

More preferably, as shown in FIG. 6, the roller body 22 may form an annular groove portion 22b at a portion close to the outer circumference of the upper and lower edges.

The groove portion 22b is hardened after the liquefied heat-melt material 21A flows in through the first and second flow paths 222 and 224, thereby improving the bonding force between the coating layer 21 and the roller body 22. Has

The pressurized heater die 300 passes through the hollow 210 of the upper heater die 200 and contacts the hot melt material 21A at a lower portion thereof to protrude a press portion 310 for providing a pressing force.

In the present invention having such a configuration, the roller main body 22 is fixed to the coupling groove 110 of the lower heater mold 100 as shown in FIG. 4A.

At this time, the coupling hole 22a of the roller body 22 is fitted to the coupling pin 115 to prevent the flow of the roller body 22.

Subsequently, as shown in FIG. 4B, after the heat-melt material 21A is seated on the seating jaw 212 through the hollow 210 of the upper heater mold 200, the pressurized heater as shown in FIG. 4C. The mold 300 is disposed above the upper heater mold 200.

Subsequently, as shown in FIG. 4D, after the pressing part 310 of the pressure heater mold 300 is brought into contact with the upper side of the hot melt material 21A through the hollow 210 of the upper heater mold 200. When the upper and lower heater molds 200 and 100 and the pressurized heater mold 300 are heated, after the heat meltable material 21A is melted and liquefied, the grooves 22b and the first and second flow paths 222 and 224 are liquefied. It is introduced into the gap between the outer periphery of the roller body 22 and the coupling groove 110.

For this reason, as shown in FIG. 7, the heat-melt material 21A is cooled and cured by natural cooling or forced cooling after heating is completed, and thus the periphery and the outer periphery of the roller main body 22, It is combined integrally to surround the lower rim.

As shown in FIG. 5, the coating roller 20 manufactured through the molding method has a structure in which the coating layer 21 is integrally coupled to surround the outer circumference of the roller body 22 and the upper and lower edge portions thereof. Has

6 and 7, when the grooves 22b are formed on both upper and lower sides of the roller body 22, after the liquefied heat-melt material 21A flows into the grooves 22b. As the integrally coupled, the roller body 22 and the coating layer 21 are firmly coupled.

Description of the Related Art [0002]
20: coating roller 21: coating layer
21A: heat meltable material 22: roller body
22a: coupling hole 22b: groove
100: lower heater mold 110: coupling groove
115: coupling pin 200: upper heater mold
210: hollow 212: seating jaw
222,224: 1, 2, euro 300: pressurized heater mold
310: pressurization

Claims (3)

Seating the roller body 22 to generate a gap in the coupling groove 110 of the lower heater mold 100;
An upper portion of the lower heater mold 100 having a hollow 210 having first and second flow paths 222 and 224 disposed therein and communicating with a gap between the inner circumferential surface of the coupling groove 110 and the roller body 22. Arranging the heat-melt material 21A constituting the application layer 21 of the application roller 20 on the heater die 200;
After lowering the pressurized heater die 300 disposed above the upper heater die 200 to pressurize and heat the heat meltable material 21A to liquefy the heat meltable material 21A, and then liquefy the hot melt. The material 21A flows into the gap between the inner circumferential surface of the coupling groove 110 and the roller body 22 through the first and second flow paths 222 and 224 and is integrally cured on the outer circumferential surface of the roller body 22. And forming a coating roller (20) in which the heat-melting material (21A) and the roller body (22) are integrated. The method according to claim 1,
The roller structure further comprises the step of forming an annular groove portion 22b into which the liquefied heat-melting material 21A flows in the upper and lower sides of the roller body 22 near the outer circumference of the outer circumference. Molding method. In the roller structure in which the coating layer 21 is bonded to the outer circumferential surface of the roller body 22,
Annular grooves 22b are formed on the upper and lower sides of the roller body 22 near the outer circumference of the outer circumferential surface thereof.
Forming method of the roller structure, characterized in that the coating layer 21 is coupled to surround the outer periphery and the upper, lower edge portion of the roller body (22).
KR1020120090318A 2012-08-17 2012-08-17 Roller structure and forming method of the same KR20140023180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020120090318A KR20140023180A (en) 2012-08-17 2012-08-17 Roller structure and forming method of the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020120090318A KR20140023180A (en) 2012-08-17 2012-08-17 Roller structure and forming method of the same

Publications (1)

Publication Number Publication Date
KR20140023180A true KR20140023180A (en) 2014-02-26

Family

ID=50268793

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020120090318A KR20140023180A (en) 2012-08-17 2012-08-17 Roller structure and forming method of the same

Country Status (1)

Country Link
KR (1) KR20140023180A (en)

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