Index cutting device of mlcc sheet

Abstract

The present invention relates to an index cutting device for an MLCC sheet, comprising: a table having a support wall portion on its upper side; a stage fixed to the front of the table for supplying an MLCC sheet; and an MLCC index cutting module fixed to the upper side of the table for cutting an index of an MLCC sheet supplied from the stage; wherein a storage portion for recovering the cut MLCC index is built into the interior of the table.

Description

Technology Field

[0001] The present invention relates to an index cutting device for an MLCC sheet, and more specifically, to an index cutting device for an MLCC sheet that can instantaneously cut off the index of the MLCC sheet to obtain a precise cut surface, thereby preventing damage to the MLCC adjacent to the cut-off index and allowing the cut-off index to be easily recovered. Background Technology

[0003] MLCC (Multi Layer Ceramic Capacitor) has the function of supplying electricity to semiconductors at a constant rate.

[0004] MLCCs are recognized as an essential component in semiconductor circuits.

[0005] MLCCs can function as capacitors by stacking multiple layers.

[0006] Recently, as circuits containing semiconductors have become smaller, MLCCs are also becoming smaller, and to mass-produce small MLCCs, a method of manufacturing them through a process of fabricating and cutting a single sheet is widely used.

[0007] A document for cutting MLCCs is “Electronic component cutting device having blade exchange function (Korean Published Patent No. 10-2022-0052740)”.

[0008] Subsequently, a process is required to remove unnecessary indices from the MLCC sheet, but removing these indices from the MLCC sheet quickly is difficult due to the physical properties of the sheet. Prior art literature

[0010] Republic of Korea Published Patent No. 10-2022-0052740 The problem to be solved

[0011] The present invention has been devised in consideration of the above-mentioned problems, and the first objective of the present invention is to provide an index cutting device for an MLCC sheet that can instantaneously cut off the index of the MLCC sheet to obtain a precise cut surface, thereby preventing damage to the MLCC adjacent to the cut-off index.

[0013] The second objective of the present invention is to provide an index cutting device for an MLCC sheet that allows the MLCC index cutting module to be easily replaced, as well as the cut-off index to be easily recovered. means of solving the problem

[0015] According to the features for achieving the above-mentioned purpose, the first invention relates to an index cutting device for an MLCC sheet, comprising: a table having a support wall portion formed on its upper side; and a stage fixed to the front of the table for supplying an MLCC sheet. The invention is characterized by comprising: an MLCC index cutting module that is fixed to the upper part of the table and cuts the index of an MLCC sheet supplied from a stage, wherein a storage unit for recovering the cut MLCC index is built into the interior of the table, and an actuator for operating the MLCC index cutting module is mounted on the upper part of the support wall, and the actuator is slidably connected to a movable block that moves up and down along a guide rail installed on the support wall, and the MLCC index cutting module is composed of a movable block connected to the movable block and fixed to a punch unit that cuts the index of the MLCC sheet, a gripping block that moves down together with the movable block and fixes the upper surface of the MLCC sheet by applying pressure, a fixed block that is fixed to the upper part of the table and has a fixed die coupled thereto that aligns along a vertical line with the index cutting surface of the MLCC sheet, and a lifting die that is in close contact with the fixed die on the same horizontal line within the fixed block and moves down together with the index of the MLCC sheet by applying pressure to the punch unit so that the index is cut-off.

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[0021] The fourth invention is characterized in that, in the first invention, the grip block is connected to the moving block via an elastic means.

[0023] The fifth invention is characterized in that, in the first invention, the grip block and the fixed block are slidably connected through a plurality of shafts coupled to the movable block.

[0025] The sixth invention is characterized in that, in the first invention, the punch portion is structured to be embedded and moved in and out while slidingly coupled inside the grip block.

[0027] The seventh invention is characterized in that, in the first invention, the lifting die is formed with a support surface located on the vertical line of the punch portion and supporting the bottom surface of the index, and an inclined surface inclined downward from the support surface so as to guide the cut-off index.

[0029] The eighth invention is characterized in that, in the first or seventh invention, the lifting die is elastically supported by an elastic means disposed on the bottom surface.

[0031] The ninth invention is characterized in that, in the first invention, the fixed block has a rectangular opening formed therein to provide an installation space for the fixed die and the lifting die, and a space for dropping the cut-off index.

[0033] The 10th invention is characterized in that, in the 9th invention, a scrap discharge path is further formed inside the table to guide the index falling through the cut opening to the storage section. Effects of the invention

[0035] According to the index cutting device for an MLCC sheet of the present invention, the index of the MLCC sheet can be instantaneously cut off to obtain a precise cutting surface, and since this prevents damage to the MLCC adjacent to the cut-off index, the effect of increasing the production yield of the MLCC is achieved.

[0036] In addition, the MLCC index cutting module can be easily replaced, which has the effect of making maintenance convenient.

[0037] In addition, it has the effect of allowing cut-off indexes to be easily retrieved through the storage unit. Brief explanation of the drawing

[0039] FIG. 1 is a perspective view of an index cutting device for an MLCC sheet according to the present invention. FIG. 2 is a perspective view of an MLCC index cutting module extracted from FIG. 1, FIG. 3 is an exploded perspective view of FIG. 2, FIG. 4 is a front view of the movable block extracted from FIG. 3, FIG. 5 is a conceptual diagram showing the shear angle of a punch portion according to another embodiment, FIG. 6 is a bottom perspective view of a movable block extracted from FIG. 3, FIG. 7 is a perspective view and a cross-sectional view of a grip block extracted from FIG. 3, FIG. 8 is a cross-sectional view of an MLCC index cutting module, FIG. 9 is a side view showing a cross-section of the main part in FIG. 1, FIGS. 10 to 12 are operation diagrams of an MLCC index cutting module according to the present invention. Specific details for implementing the invention

[0040] The following objects, other objects, features, and advantages of the present invention will be easily understood through the following preferred embodiments associated with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms.

[0041] Rather, the embodiments introduced herein are provided to ensure that the disclosed content is thorough and complete, and to ensure that the spirit of the invention is sufficiently conveyed to those skilled in the art.

[0042] The embodiments described and illustrated herein also include complementary embodiments.

[0043] In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used in this specification, 'comprise' and / or 'comprising' does not exclude the presence or addition of one or more other components to the mentioned component.

[0044] The present invention will be described in detail below with reference to the drawings. In describing the specific embodiments below, various specific details have been included to explain the invention more specifically and to aid in understanding. However, a reader with sufficient knowledge in the art to understand the invention will recognize that it can be used without these various specific details. In some cases, it is noted in advance that commonly known parts that are not significantly related to the invention have been omitted to prevent confusion in describing the invention.

[0046] Hereinafter, an index cutting device for an MLCC sheet according to the present invention will be described in detail together with the attached drawings.

[0048] Before describing the present invention, the MLCC sheet is a structure in which MLCCs (Multi-Layer Ceramic Capacitors: a structure made by alternately stacking thin ceramic dielectric layers and metal electrode layers) are arranged on the upper surface of the sheet, and a process of cutting off unnecessary outer indexes of the MLCC sheet is required during the manufacturing process. (It is manufactured from a single base material during the manufacturing process and can be cut to the same size during the subsequent cutting step.)

[0050] FIG. 1 is a perspective view of an index cutting device for an MLCC sheet according to the present invention, FIG. 2 is a perspective view of an MLCC index cutting module extracted from FIG. 1, FIG. 3 is an exploded perspective view of FIG. 2, FIG. 4 is a front view of a moving block extracted from FIG. 3, FIG. 5 is a conceptual diagram showing the shear angle of a punch part according to another embodiment, FIG. 6 is a bottom perspective view of a moving block extracted from FIG. 3, FIG. 7 is a perspective view and cross-sectional view of a grip block extracted from FIG. 3, FIG. 8 is a cross-sectional configuration diagram of an MLCC index cutting module, and FIG. 9 is a side view showing a cross-section of a main part in FIG. 1.

[0052] As illustrated in FIGS. 1 to 9, the present invention relates to an index cutting device (300) for an MLCC sheet that can instantaneously cut off the index of an MMLCC sheet to obtain a precise cut surface, thereby preventing damage to the MLCC adjacent to the cut-off index and allowing the cut-off index to be easily recovered.

[0054] The index cutting device (300) of the MLCC sheet of the present invention is largely composed of three parts, which may consist of a table (310), a stage (330), and an MLCC index cutting module (100).

[0056] As shown in FIGS. 1 and 9, the table (310) has a structure in which a support wall (320) is formed on the upper part, and an actuator (321) for operating an MLCC index cutting module (100) is mounted on the upper part of the support wall (320).

[0057] And the actuator (321) is slidably connected to a movable block (323) that moves up and down along a guide rail (322) installed on a support wall (320), and the movable block (323) is connected to an MLCC index cutting module (100).

[0059] The above stage (330) is fixed in front of the table (310) and has the function of placing the MLCC sheet (200) and supplying the MLCC sheet (200) to the MLCC index cutting module (100).

[0061] The above MLCC index cutting module (100) may be composed of a moving block (10), a gripping block (20), and a fixed block (30), as shown in FIGS. 2 and 3. In this case, the gripping block (20) and the fixed block (30) may be structured to be slidably connected through a plurality of shafts (12) coupled to the moving block (10).

[0062] Here, the moving block (10) is connected to the movable block (323) connected to the actuator (321), and the fixed block (30) is fixed to the table (310), thereby providing a structure that allows the MLCC index cutting module (100) to be easily replaced.

[0063] At this time, the fixed block (30) has a structure having the same horizontal plane as the stage (330) on which the MLCC sheet (200) is placed. Therefore, a structure can be provided so that the MLCC sheet (200) supplied through the stage (330) can be guided to the upper surface of the fixed block (30).

[0064] The above-mentioned moving block (10) has a structure in which a punch part (11) that cuts the index (210) of the MLCC sheet (200) is fixed.

[0065] At this time, the above punch part (11) cuts off the index (210) of the MLCC sheet (200) and is structured to be downwardly coupled so as to be exposed on the bottom surface of the moving block (10).

[0066] The bottom surface of the above-mentioned punch portion (11) may be formed with a shear angle (θ) inclined in the range of 0.1 to 1° along the longitudinal direction, as shown in FIG. 4.

[0067] In addition, as shown in FIG. 5, as another embodiment, the bottom surface of the punch portion (11) may be formed with a shear angle (θ) that is inclined in the range of 0.1 to 1° from the center to both sides along the longitudinal direction.

[0068] This shear angle (θ) allows the pressure of the punch portion (11) to be locally transmitted to the cutting surface of the index (210), so that the index (210) of the MLCC sheet (200) can be cut-off with only a smaller pressure.

[0069] The grip block (20) descends together with the moving block (10) and functions to fix the upper surface of the MLCC sheet (200) by elastic pressure.

[0070] This grip block (20) is structured to be connected to the moving block (10) via an elastic means (C).

[0071] Through this, when the moving block (10) descends, as shown in FIG. 10, the grip block (20) can primarily elastically press and fix the upper surface of the MLCC sheet (200).

[0072] At this time, the bottom surface of the grip block (20) may be configured with a cushioning sheet (not shown) combined to mitigate contact impact with the MLCC (220).

[0073] Meanwhile, the punch part (11) fixed to the above-mentioned moving block (10) is embedded and moved in and out while slidingly coupled inside the grip block (20).

[0074] Accordingly, when the moving block (10) descends, the grip block (20) first elastically presses and fixes the upper surface of the MLCC sheet (200), and as shown in FIG. 11, the punch part (11) descends secondarily to cut off the index (210) of the MLCC sheet (200).

[0075] Accordingly, the grip block (20) can have a primary function of fixing the MLCC sheet (200) and an additional function of guiding the punch part (11) to come close to the MLCC sheet (200) and to be raised by the shortest distance.

[0076] The above fixed block (30) is a structure in which a fixed die (31) is combined that aligns along a vertical line with the index (210) cutting surface of the MLCC sheet (200).

[0077] The above fixed block (30) may be in the form of a rectangular opening (33) formed to provide a space for installing the fixed die (31) and the lifting die (32) and a space for dropping the cut-off index (210).

[0078] That is, the structure is such that a fixed die (31) is further coupled to the above-mentioned cut (33), and a lifting die (32) is installed in close contact with the fixed die (31) on the same horizontal line.

[0079] The above fixed die (31) has a nose portion (311) that is vertically aligned with the cut surface of the index (210), and friction with the lifting die (32) can be minimized through the nose portion (311).

[0080] The above lifting die (32) functions to descend together with the index (210) of the MLCC sheet (200) by the pressure of the punch part (11) so that the index (210) is cut-off. (Illustrated in FIG. 11)

[0081] As shown in FIG. 7 (b), the above-mentioned lifting die (32) may be composed of a support surface (321) that is positioned on the vertical line of the punch portion (11) and supports the bottom surface of the index (210), and an inclined surface (322) that is inclined downward from the support surface (321) to guide the cut-off index (210).

[0082] At this time, it is preferable that the width of the support surface (321) be 4 mm or less, so that the pressing force of the punch part (11) is locally transmitted to the cut surface of the index (210), and also so that the center of gravity of the cut-off index (210) is tilted toward the inclined surface (322) so that the index is smoothly discharged along the inclined surface (322).

[0083] In addition, the lifting die (32) is structured so that it can be automatically restored to its original position after being lowered by an elastic means (C) placed on the bottom surface and cutting off the index (210).

[0084] Meanwhile, the structure is such that N nozzle holes (N) are further formed on the bottom surface of the punch part (11) of Fig. 6 and the inclined surface (322) of the lifting die (32) of Fig. 7 to facilitate the separation of the cut-off index (210).

[0085] The nozzle hole (N) is connected to an air tank (not shown) and functions to guide the cut-off index (210) to the inclined surface (322) of the lifting die (32) by releasing air when the punch part (11) has stopped descending, and also reduces the frictional force of the index (210) discharged along the inclined surface (322) of the lifting die (32) so that it can be discharged more quickly (shown in FIG. 12).

[0087] Meanwhile, as shown in FIG. 9, the table (310) may be configured to have a built-in storage unit (311) for recovering and storing the cut MLCC index (210).

[0088] At this time, a scrap discharge path (312) may be formed inside the table (310) to guide the index (210), which falls into the cut-off opening (33), to the storage unit (311).

[0089] The upper part of the scrap discharge path (312) is connected to the cut-off opening (33), and the lower part is connected to the storage section (311) so that the cut-off index (210) can be stored and recovered in real time.

[0091] Below, we will briefly explain the operation of the MLCC index cutting module.

[0092] FIGS. 10 to 12 are operation diagrams of an MLCC index cutting module according to the present invention.

[0093] The MLCC sheet (200) placed on the stage (330) can be aligned through an alignment means such as a separate robot feeding device (not shown).

[0094] At this time, the index (210) cut surface of the MLCC sheet (200) is aligned to match the end of the nose portion (311) of the fixed die (31). (Illustrated in FIG. 10)

[0095] More specifically, the index (210) cut surface of the MLCC sheet (200) is aligned with the nose portion (311) of the fixed die (31) and the support surface (321) of the lifting die (32).

[0096] In this state, the moving block (10) is lowered by the moving block (323) which is raised by the actuator (321).

[0097] Then, as shown in Fig. 10, the grip block (20), which descends together with the moving block (10), primarily fixes the upper surface of the MLCC (220) by elastically pressing it.

[0098] Afterwards, as shown in Fig. 11, when the moving block (10) continues to descend, the punch part (11) coupled to the moving block (10) comes into contact with the index (210) of the MLCC sheet (200).

[0099] As shown in Fig. 12, the lifting die (32) descends along with the continuous descent of the punch part (11) to cut off the index (210).

[0100] At this time, the lowering depth of the lifting die (32) is lowered to a range of about 2 to 3 mm, and through this, a structure can be provided that can have a precise cutting surface of the MLCC sheet (200) and increase the production yield of the MLCC (220).

[0102] The embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention; therefore, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application. Explanation of the symbols

[0104] 10: Moving block 11: Punch part 12: Shaft θ: Share angle 20: Grip Block 30: Fixed block 31: Fixed die 311: Nose part 32: Lifting die 321: Support surface 322: Inclined surface 33: Cut C: Elastic means N: Nozzle hole 100: MLCC Index Cutting Module 200: MLCC Sheet 210: Index 220: MLCC 300: MLCC cutting device 310: Table 311: Storage unit 312: Scrap Discharge Line 320: Support wall 321: Actuator 322: Guide rail 323: Movable block 330: Stage

Claims

Claim 1 A table (310) having a support wall (320) on its upper side; a stage (330) fixed to the front of the table (310) to supply an MLCC sheet (200); and an MLCC index cutting module (100) fixed to the upper part of the table (310) and cutting an index (210) of an MLCC sheet (200) supplied from a stage (330); wherein a storage unit (311) for recovering the cut MLCC index (210) is built inside the table (310), and an actuator (321) for operating the MLCC index cutting module (100) is mounted on the upper part of the support wall (320), and the actuator (321) is slidably coupled with a movable block (323) that moves up and down along a guide rail (322) installed on the support wall (320), and the MLCC index cutting module (100) is connected to the movable block (323), and a movable block (10) to which a punch unit (11) for cutting the index (210) of the MLCC sheet (200) is fixed is fixed, and the An index cutting device for an MLCC sheet, characterized by comprising: a grip block (20) that descends together with a moving block (10) to fix the upper surface of an MLCC sheet (200) by applying pressure; a fixed block (30) that is fixed to the upper part of the table (310) and has a fixed die (31) that is aligned along a vertical line with the cutting surface of the index (210) of the MLCC sheet (200); and a lifting die (32) that is in close contact with the fixed die (31) on the same horizontal line within the fixed block (30) and descends together with the index (210) of the MLCC sheet (200) by applying pressure from a punch part (11) to cut off the index (210). Claim 2 delete Claim 3 delete Claim 4 An index cutting device for an MLCC sheet according to claim 1, wherein the grip block (20) is connected to the moving block (10) via an elastic means (C). Claim 5 An index cutting device for an MLCC sheet according to claim 1, characterized in that the grip block (20) and the fixed block (30) are slidably connected through a plurality of shafts (12) coupled to the moving block (10). Claim 6 An index cutting device for an MLCC sheet according to claim 1, characterized in that the punch part (11) is embedded and moves in and out while slidingly coupled inside the grip block (20). Claim 7 An index cutting device for an MLCC sheet according to claim 1, wherein the lifting die (32) is formed by a support surface (321) that is positioned on the vertical line of the punch part (11) and supports the bottom surface of the index (210), and an inclined surface (322) that is inclined downward from the support surface (321) to guide the cut-off index (210). Claim 8 An index cutting device for an MLCC sheet according to claim 1 or 7, characterized in that the lifting die (32) is elastically supported by an elastic means (C) disposed on the bottom surface. Claim 9 An index cutting device for an MLCC sheet according to claim 1, characterized in that the fixed block (30) has a rectangular opening (33) formed therein to provide a space for installing the fixed die (31) and the lifting die (32) and a space for dropping the cut-off index (210). Claim 10 An index cutting device for an MLCC sheet according to claim 9, characterized in that a scrap discharge path (312) is further formed inside the table (310) to guide the index (210) falling into the cut opening (33) to the storage section (311).

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