KR200240110Y1 - Multistage lamination device having a dummy plate - Google Patents

Abstract

A lamination mechanism is disclosed to prevent damage to a ceramic sheet in a lamination process. This lamination mechanism includes a first plate having a guide pin; A dummy plate having a first hole through which the guide pin can pass; A second plate having a second hole through which the guide pin can pass; And a third plate provided with a heating wire for preheating the first plate, the second plate, and the dummy plate. The dummy plate, the first plate or the second plate may further include a handle coupled to both sides of the main body to be thermally compressed in use, and a jig is formed on the side of the third plate so that the handle can be inserted. The jig may be formed at the end of the jig to prevent the handle from being pushed in.

Description

Multi lamination device having a dummy plate

The present invention relates to a lamination plate, and more particularly to a lamination plate of a ceramic green sheet used in the manufacture of ceramic electronic components.

Electronic components used in mobile communication and information communication devices include multilayer ceramic components such as multilayer ceramic capacitors or multilayer ceramic resistors, multilayer ceramic sensors, ceramic integrated circuit boards, and the like.

First, an adhesive solution in which a polymer binder is dissolved in a volatile solvent is prepared, and then a ceramic powder having electrical properties is dispersed therein to make a slurry for ceramic sheets, and the slurry for ceramic sheets is coated on a silicone-coated PET film such as a doctor blade or the like. Applying and drying to a predetermined thickness using a mechanism produces a ceramic sheet.

When the ceramic sheet is prepared, the required number of ceramic sheets are laminated according to the required electrical characteristics. To this end, a lamination machine and a lamination machine are applied to give a lamination mechanism and heat and pressure.

As a lamination mechanism, two lamination plates in which guide holes and guide pins are formed are used. In this case, punched guide holes are also formed in the ceramic sheet to guide the guide pins. And, the guide hole of the ceramic sheet is used as the reference coordinate in the previous process or the subsequent process.

When the guide hole formed in the lamination plate and the ceramic sheet is inserted into the guide pin of the lamination plate, that is, the ceramic sheet is placed between the two lamination plates, and then the lamination plate is heated and pressurized by using a hydraulic machine such as a lamination machine. A laminated ceramic sheet of structure is produced.

The laminated ceramic component is manufactured by separating the laminated ceramic sheet from the guide pin of the lamination plate, cutting it into a predetermined size, and then sintering.

However, in the manufacture of a multilayered ceramic sheet using a lamination plate having a guide hole and a guide pin, the ceramic sheet from the guide pin of the lamination plate due to the spreading phenomenon in the guide hole portion of the ceramic sheet during the lamination process Since it does not escape well, when an excessive force is applied, problems such as being caught by the guide pin and being torn or deformed in the ceramic sheet are caused.

When the guide hole of the ceramic sheet is deformed or torn, it affects the subsequent process (cutting process) of cutting the guide hole of the ceramic sheet as a reference coordinate, resulting in product defects.

The present invention has been made to solve the above problems, and an object thereof is to provide a lamination mechanism in which the ceramic sheet is not damaged in the lamination process.

1 is an exploded perspective view of a lamination mechanism having a multi-stage plate as an embodiment according to the present invention,

FIG. 2 is an exploded perspective view of one plate of FIG. 1;

3 is an exploded perspective view of a heating plate and a multistage plate for preheating the multistage plate at a predetermined temperature;

4 schematically shows a temperature controller in which the multi-stage plate and the heating plate of FIG. 3 are placed, and

FIG. 5 illustrates a block diagram of a circuit provided inside the temperature controller as an example for keeping the preheat temperature constant.

<Description of the symbols for the main parts in the drawings>

1. Bottom plate 3. Guide pin

5. Dummy Plate 7. Ceramic Sheet

9: upper plate 10. heating plate

12. Hot wire 50. Plate body

50a. Guide hole 50b. Body screw groove

51. Bracket 51a. Punching hole

52. Fastening screw 53. Handle

53a. Thumbscrew 100. Temperature Controller

110. Temperature setting section 120. Temperature detection section

130. Comparator 140. Output

In order to achieve the above object, as an embodiment according to the present invention, the lamination mechanism includes: a first plate having a guide pin; A dummy plate having a first hole through which the guide pin can pass; And a second plate having a second hole through which the guide pin can pass.

Here, the guide pin, the first hole and the second hole is preferably at least two, the dummy plate is located between the first plate and the second plate, when in use, the ceramic sheet is the dummy plate And is pressed between the second plate.

The dummy plate may be plural, and the dummy plate, the first plate, or the second plate may have a handle coupled to both sides of the main body to be thermally compressed in use.

In addition, the material of the main body, it is preferable to use an alloy containing aluminum or aluminum for easy heat transfer.

In addition, the handle may be screwed to the body. Here, the first screw groove is formed on both sides of the main body, the second screw groove is formed at the end of the handle, the first fastening screw is inserted into the first screw groove, the second screw groove is inserted into A bracket having a second fastening screw, a third hole through which the first fastening screw passes, and a fourth hole through which the second fastening screw passes, can be coupled to the main body and the handle by the bracket. have. Here, the first fastening screw and the second fastening screw may be a dish screw or a general screw. In addition, the first screw groove and the second screw groove may be at least two, the second screw groove may be formed at both ends of the handle of the '' 'shape.

Preferably, the apparatus further includes first means for preheating the first plate, the second plate, and the dummy plate. Here, the first means may be a third plate having a jig and a heating wire for providing a heat source so that the handle can be inserted into the side. In addition, it is preferable that a locking jaw is formed at one end of the jig to prevent the handle from being pushed.

Furthermore, the heating wire is a heating wire, it provides a lamination mechanism further comprising a second means for maintaining a constant preheating temperature by the heating wire.

The second means includes: a temperature setting unit for setting a preheating temperature; A temperature detector for detecting a preheated temperature; A comparator configured to receive the set voltage of the temperature setter as a reference voltage and receive a detected voltage of the temperature detector as a comparison voltage to compare and output two input voltages; And an output unit for starting or stopping the heating wire according to the comparison output signal of the comparison unit.

In one embodiment according to another aspect of the present invention, before the thermocompression bonding the ceramic sheet disposed between the plurality of plates using a plurality of plates having a body and a handle coupled to both sides of the main body An apparatus for preheating a lamination plate is disclosed, which is used for preheating to a temperature, having a grooved jig on its side so that the handle can be inserted, and a heating wire for providing a heat source.

Further, the heating wire is a heating wire, and further comprising means for maintaining a constant preheating temperature by the heating wire, the means comprising: a temperature setting unit for setting the Yeel temperature; A temperature detector for detecting a preheated temperature; A comparator configured to receive the set voltage of the temperature setter as a reference voltage and receive a detected voltage of the temperature detector as a comparison voltage to compare and output two input voltages; And an output unit for starting or stopping the heating wire according to the comparison output signal of the comparison unit.

Hereinafter, with reference to the accompanying drawings will be described in more detail lamination mechanism as an embodiment according to the present invention.

Figure 1 shows an exploded perspective view of the lamination mechanism using a multi-stage plate according to an embodiment of the present invention.

Referring to FIG. 1, the lamination mechanism includes a lower play, an upper plate 9, and a dummy plate 5 positioned between the upper and lower plates 1.

In the lower plate 1, for example, four guide pins 3 are provided to fix the horizontal position of the dummy plate 5 and the upper plate 9 and to guide the vertical movement. The guide pin 3 may be integrally formed with the lower plate 1, but is preferably attached to the lower plate 1 so that the guide pin 3 may be detachably attached to the lower plate 1 body.

In the dummy plate 5 and the upper plate 9, four guide holes 50a are respectively provided in portions corresponding to the guide pins 3 so as to be guided and inserted into the guide pins 3 of the lower plate 1. Is formed.

The dummy plate 5 is guided to the guide pin 3 provided in the lower plate 1 by the guide hole 50a and is disposed on the lower plate 1. In the state where the dummy plate 5 is stacked, the guide pin of the lower plate 1 is protruded to the top of the dummy plate.

The several sheets of ceramic sheet 7 to be laminated are formed with punching holes pre-punched in the peripheral portions corresponding to the guide pins 3, and the punching holes of the ceramic sheets 7 respectively protrude above the lower plate 1. Inserted into the guide pin 3 of the guide plate is disposed on the dummy plate (5).

The upper plate 9 has a guide hole of the upper plate 9 inserted into the guide pin 3 of the lower plate 1 protruding thereon, on a plurality of ceramic sheets 7 arranged on the dummy plate 5. Guided and placed on the ceramic sheet 7.

Here, in the lamination mechanism assembled by the guide pin 3 and the guide hole into the lower plate 1, the dummy plate 5, and the upper plate 9, the ceramic sheet 7 to be stacked is a separate dummy plate ( 5) It is in the state inserted in the guide pin 3 of the lower plate 1 from above.

In the lamination mechanism as one embodiment according to the present invention, the lamination mechanism is heated and pressurized by a lamination-only machine or the like on the upper and lower portions thereof, and the ceramic sheet 7 inserted into the lamination mechanism is thermally compressed to have a multilayer structure. do.

When the ceramic sheet 7 is separated from the lamination mechanism after thermal compression, first, the upper plate 9 / ceramic sheet 7 / pile plate 5 is moved along the guide pin 3 to the lower plate 1. ) And then separate the top plate (9) from the separated top plate (9) / ceramic sheet (7) / pile plate (5) to separate the multilayer ceramic sheet (7) on the dummy plate (5). Do it. As a result, even when the ceramic sheet 7 spreads during the lamination process, the ceramic sheet 7 is separated between the dummy plate 5 and the upper plate 9 along the guide pin 3 and thus, the ceramic Deformation by the guide pin 3 in the punching hole of the sheet 7 does not occur. Here, the illustrated example is described using one dummy plate 5 as an example, but the present invention is not limited thereto, and the ceramic having a plurality of multilayer structures in one lamination process using a plurality of dummy plates 5 may be used. The sheet 7 may also be heat bonded.

In the lamination mechanism, each plate is preferably provided with a handle 53 so that it can be easily separated from the guide pin 3.

Figure 2 shows the handle portion of each plate separately in the lamination mechanism of Figure 1 shown. Here, the illustrated example shows a dummy plate, but may also be commonly applied to the upper or lower plate.

Referring to FIG. 2, the dummy plate 5 includes a plate body 50, a handle 53, and a bracket 51.

The plate body 50 has four guide holes 50a formed at corresponding positions thereof so that the guide pins 3 of the lower plate 1 can pass therethrough, and brackets are provided at both sides of the plate 53 to which the handle 53 is attached. For example, two screw grooves are formed for engaging 51. Here, the plate is preferably made of a heat transfer material such as aluminum heat transfer metal.

Handle 53 is a shape that can easily grip each plate, for example, has a 'c' shape and both ends of the screw groove 53a to be coupled to the bracket 51 by a plate screw or a general screw 52, etc. ) Is formed.

The bracket 51 is formed with four through holes between the plate and the handle 53 to attach the handle 53 to the plate body 50 using a plate screw 52 or the like corresponding to the side of the plate.

Accordingly, in the state where the bracket 51 and the handle 53 are in contact with each other, the plate screw 52 is tightened to the through hole of the bracket 51 and the screw groove 53a of the handle 53, and then the bracket The plate 51 is brought into contact with the side of the plate main body 50, and the two remaining through holes formed in the bracket and the two plate screws 52 are fastened and coupled to the screw groove 50b of the plate main body 50, as shown in FIG. The dummy plate 5 as assembled is assembled. Here, but preferably shows an example of attaching the handle 53 to the plate body 50 using the plate screw 52 and the bracket 51, the present invention is not limited to this, of course, the general screw It may be attached using welding or other adhesives.

And, the temperature used for thermocompression bonding in the laminating process is usually used 70 ℃-120 ℃, if the lamination apparatus at room temperature or cold state into the thermocompression process takes a long time to transfer heat to the ceramic sheet (7) Since a delay time is required, the work speed and its efficiency decrease. Therefore, it is preferable for the lamination step to preheat the lamination mechanism to a predetermined temperature before the lamination mechanism is put into the thermocompression step and to put the lamination mechanism into the thermocompression step.

To this end, the lamination mechanism according to the present invention is a heating plate 10 for preheating to a predetermined temperature in advance in order to more effectively achieve the lamination process according to the heat pressurization in the lamination machine before heat pressurization using a lamination-only machine or the like. Is preferably provided.

Figure 3 shows an exploded perspective view of the lamination mechanism with a heating plate according to the present invention.

Referring to FIG. 3, the heating plate 10 is provided with a heating wire 12 on its bottom surface such that a multi-stage plate in which top / dummy / bottom plates are stacked may be inserted and heat-transmitted to be preheated. The heating wire 12 may be internalized by forming a heating wire groove under the heating plate 10 and inserting a heating wire and then attaching the rear iron plate by welding or the like. In addition, a separate heater may be attached to the heating plate instead of the heating wire.

On both sides of the heating plate 10, a 'c' shaped handle holder jig 13 is formed to fit the handle 53 of the lower plate 1 of the multi-stage plate. Then, the locking jaw 11 is formed in the rear portion of the jig 13 into which the handle 53 is inserted to prevent the multi-stage plate from being pushed out.

Accordingly, the handle 53 of the lower plate 1 is fitted into the jig 13 formed on both sides of the heating plate 10, and the plate handle is pushed into the locking jaw 11 at the rear of the jig 13 so as to catch the handle. In the state, before the lamination process using a lamination-only machine or the like, the multi-stage plate can be preheated by the heating plate 10 to a predetermined temperature, for example, 70 ° C to 120 ° C.

In addition, it is preferable that the heating plate 10 is provided with a temperature controller 100 so that the preheating temperature supplied to the multi-stage plate is constant.

FIG. 4 schematically illustrates a temperature controller in which the multi-stage plate and the heating plate of FIG. 3 are placed, and FIG. 5 is a block diagram of a circuit provided inside the temperature controller as an example to make the preheating temperature constant. will be.

Referring to FIG. 4, the temperature controller 100 includes a base on which the heating plate 10 is placed, an electric cord for applying an external current to the heating wire, and a temperature controller for adjusting the preheating temperature to be kept constant. 101).

Referring to FIG. 5, as an example for maintaining a constant preheating temperature by a heating wire, the temperature controller 100 may include a temperature setting unit 110 for setting a preheating temperature by a user using the temperature controller 101. In addition, the temperature detector 120 for detecting the temperature of the heating plate 10 to be preheated and the set voltage of the temperature setter 110 are applied as a reference voltage, and the detected voltage of the temperature detector 120 is compared to the comparison voltage. The general purpose load, that is, the heating wire 12 is started in accordance with the comparator 130 for comparing the two voltages inputted by using the comparators U1 and U2 and outputting the comparator and the output signal of the comparator 130. Or an output unit 140 for stopping. Here, the TR 131 is turned off when the external temperature decreases, and the heating wire 12 is started. When the external temperature rises, the TR 131 is turned on and the heating wire 12 is stopped.

According to this configuration, as the heating plate 10 is supplied with power to the heating wire 12, in a state in which the temperature to be preheated is automatically adjusted to be kept constant, the multi-stage plate can be preheated to a constant temperature.

In the case where it is desired to preheat the multistage plate to a constant temperature by using such a device, in the multistage plate in which the ceramic sheet 7 to be laminated between the dummy plate 5 and the upper plate 9 is arranged, first the lower plate 1 When the handle portion disposed on the side of the heating plate 10 is inserted into the groove 13 of the handle holder jig of the heating plate 10 and then power is applied, the temperature of the heating wire 12 is controlled by the internal circuit of the temperature controller 100. Is kept constant and the multistage plate is preheated to a constant temperature.

After the multi-stage plate is preheated, after removing the multi-stage plate from the handle holder jig 13 of the heating plate 10, the multi-stage plate is moved to a lamination-only machine, and the multi-stage plate is thermocompressed to produce a ceramic sheet having a multi-layer structure. .

In order to separate the thermocompression-bonded multilayer ceramic sheet 7 from the multi-stage plate, since the flatness of the contact surface of the lower plate 1 and the dummy plate 5 is maintained in a precise state, the lower plate 1 ), It is not easy to separate the dummy plate 5 by hand. Accordingly, after the thermocompression bonding, the handle portion of the lower plate 1 is inserted into the groove of the handle holder jig 13 of the heating plate 10 again, so that the handle of the lower plate 1 is attached to the catching jaw 11 of the jig. When the handle portion of the dummy plate 5 is lifted up in a locked state, it can be more easily removed.

In the above, the present invention is described as an example with reference to the accompanying drawings, but the present invention is not limited to this, various modifications or changes can be made without departing from the technical gist of the present invention, The technical scope of the design shall be interpreted by the claims.

In manufacturing a ceramic sheet having a multi-layer structure using the lamination mechanism according to the present invention, it is possible to prevent deformation of the punching hole portion of the ceramic green sheet or tearing of the ceramic green sheet after thermal compression, thus, subsequent steps This can prevent work defects and product defects in

Claims (16)

A first plate having a guide pin; A dummy plate having a first hole through which the guide pin can pass; And a second plate having a second hole through which the guide pin can pass. The method of claim 1, And the guide pin, the first hole, and the second hole are at least two. The method of claim 1, The dummy plate is located between the first plate and the second plate, and in use, a ceramic sheet is pressed between the dummy plate and the second plate. The method of claim 1, Lamination mechanism, characterized in that the plurality of dummy plates. The method of claim 1, The dummy plate, the first plate or the second plate, Lamination mechanism characterized in that it has a handle coupled to both sides of the body that is thermally compressed in use. The method of claim 5, The material of the main body is a lamination mechanism, characterized in that the alloy containing aluminum or aluminum. The method of claim 5, And the handle is screwed to the body. The method of claim 7, wherein First screw grooves are formed on both side surfaces of the main body, A second screw groove is formed at the end of the handle, A first fastening screw inserted into the first screw groove, a second fastening screw inserted into the second screw groove, a third hole through which the first fastening screw passes, and a second fastening screw passing through the first fastening screw And a bracket having four holes, wherein the main body and the handle are coupled by the bracket. The method of claim 8, And the first fastening screw or the second fastening screw is a countersunk screw. The method of claim 8, And at least two of the first screw groove and the second screw groove, wherein the second screw grooves are formed at both ends thereof. The method of claim 10, The handle is a lamination mechanism, characterized in that the '' 'shape. The method of claim 5, In order to preheat the first plate, the second plate and the dummy plate, further comprising a third plate having a jig with a groove so that the handle can be inserted and a heating wire for providing a heat source. Lamination mechanism. The method of claim 12, Lamination mechanism, characterized in that the locking step is formed at one end of the jig to prevent the push of the handle is inserted. The method of claim 12, The heating wire is a heating wire, A temperature setting section for setting a preheating temperature; A temperature detector for detecting a preheated temperature; A comparator configured to receive the set voltage of the temperature setter as a reference voltage and receive a detected voltage of the temperature detector as a comparison voltage to compare and output two input voltages; And a temperature controller including an output unit for starting or stopping the heating wire according to the comparison output signal of the comparison unit. For preheating before thermocompression bonding the ceramic sheet disposed between the plurality of plates using a plurality of plates having a main body and a handle coupled to both sides of the main body, And a grooved jig for inserting the handle and a heating wire for providing a heat source. The method of claim 17, The heating wire is a heating wire, A temperature setting section for setting a preheating temperature; A temperature detector for detecting a preheated temperature; A comparator configured to receive the set voltage of the temperature setter as a reference voltage and receive a detected voltage of the temperature detector as a comparison voltage to compare and output two input voltages; And a temperature controller including an output unit for starting or stopping the heating wire according to the comparison output signal of the comparison unit.