Auxiliary tool for brushing silver on ceramic capacitor powder dry-pressed sheet

Abstract

The utility model discloses an auxiliary tool for brushing silver on a ceramic capacitor powder dry-pressing sheet, which comprises a base and a die, limiting columns are arranged in four directions of the top surface of the base, the die is placed on the top surface of the base and limited among the limiting columns in all directions, and a plurality of placing holes for placing the dry-pressing sheet are formed in the die. The aperture of the placing hole is 0.5-1mm larger than the diameter of the dry pressing sheet, and the thickness of the mold is 0.5-1mm larger than the thickness of the dry pressing sheet, so that the side end of the dry pressing sheet can be completely hidden in the placing hole. According to the utility model, the silver brushing time is greatly shortened, the production efficiency is improved, the silver paste is ensured not to be adhered to the side surface of the dry-pressing sheet in the silver brushing process, the short-circuit sparking phenomenon of the positive electrode and the negative electrode in the polarization process is avoided, the risks of dry-pressing sheet explosion and polarization equipment damage are reduced, and the personal safety of operators and the uniformity of silver brushing are guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to ceramic capacitor preparation technical field, especially a kind of auxiliary tool for ceramic capacitor powder dry pressing piece silvering. BACKGROUND

[0002] In the ceramic capacitor preparation process, the quality of powder is directly related to the quality of finished product, so accurately judging the performance of each batch of powder is particularly important. The current method to judge whether the powder is qualified is to use the same batch of powder to granulate, then use a tablet press to obtain dry pressing pieces, then test the related data obtained after sintering, silvering and polarization to judge. Among them, the silvering step is crucial for the smooth polarization of dry pressing pieces, and is a key link of dry pressing piece testing. Because the uniformity of silver paste attached to the surface of dry pressing piece directly affects the polarization effect of dry pressing piece, thus determines the performance of powder. If the uniformity of silver paste is poor, it will lead to incomplete polarization, and inaccurate test data will mislead the operator to judge the performance of powder, which will bring hidden dangers to subsequent production. Moreover, if silver paste is attached to the side of dry pressing piece during silvering process, it may cause positive and negative short circuit during polarization process, causing dry pressing piece to burst or polarization equipment to be damaged, causing property loss to the company. Moreover, the short circuit of high-voltage direct current even affects the personal safety of the operator. The current method to silver dry pressing piece is that the operator clamps the dry pressing piece with tweezers, and then brushes each piece with a brush. This method not only has low efficiency, greatly affects the production efficiency of the company, but also easily attaches silver paste to the side of dry pressing piece, seriously affecting the safety of the operator. CONTENT OF THE UTILITY MODEL

[0003] In view of the problems existing in the prior art, the utility model aims to provide an auxiliary tool for silvering of ceramic capacitor powder dry pressing piece, which can improve the silvering efficiency, avoid the attachment of silver paste to the side of dry pressing piece, and ensure product quality and production safety.

[0004] In order to achieve the above purpose, the utility model provides an auxiliary tool for silvering of ceramic capacitor powder dry pressing piece, which comprises a base and a mold, four positions of the top surface of the base are provided with limiting columns, the mold is placed on the top surface of the base, and is limited between each limiting column from front to back and left to right, a plurality of placing holes for placing dry pressing pieces are formed in the mold, the hole diameter of the placing hole is 0.5-1mm larger than the diameter of the dry pressing piece, and the thickness of the mold is 0.5-1mm thicker than the thickness of the dry pressing piece, so that the side end of the dry pressing piece can be completely hidden in the placing hole, and then when the operator brushes silver paste on the dry pressing piece with a brush, the silver paste will not adhere to the side of the dry pressing piece.

[0005] In the scheme, the base is equipped with multiple sets of molds, and the placement holes on each set of molds correspond to dry-pressed tablets of different sizes, that is, multiple sets of molds are designed according to the sizes of the dry-pressed tablets, and the molds matched with the dry-pressed tablets are selected and placed on the top surface of the base during silver brushing, so as to meet the silver brushing requirements of dry-pressed tablets of different specifications.

[0006] In the scheme, the molds are arranged in a matrix and have multiple placement holes, so that the number of dry-pressed tablets in one round of silver brushing is increased, and the production efficiency is further improved.

[0007] In the scheme, the molds are arranged in a matrix and have 9 or 12 placement holes, and the specific number can be reasonably designed according to actual production requirements and the size of the molds.

[0008] In the scheme, the four positions of the top surface of the base are provided with insertion holes corresponding to the limiting columns, the limiting columns are inserted into the insertion holes, and the molds are limited in the space surrounded by the four limiting columns, so that the structure is simple and convenient to arrange.

[0009] In the scheme, the base and the mold are both made of aluminum alloy material, which has the advantages of light weight, high strength, corrosion resistance and the like, is convenient for operators to carry and use, and can ensure the service life of the auxiliary tool.

[0010] In the scheme, the top surface of the base is provided with a recess corresponding to the positions of the opposite ends of the mold, the recess is designed to facilitate the operators to clamp or grab the mold from the recesses on both sides, so that the mold is separated from the base upwardly, and the mold is conveniently taken out.

[0011] The beneficial effects of the utility model are as follows:

[0012] 1. Multiple placement holes are arranged, and multiple dry-pressed tablets can be subjected to silver brushing in one round, compared with the traditional way of using tweezers to clamp the dry-pressed tablets for silver brushing, the silver brushing time is greatly shortened, and the production efficiency is improved. 2. The side end of the dry-pressed tablet is completely hidden in the placement hole, and the silver paste will not adhere to the side of the dry-pressed tablet during silver brushing, avoiding the phenomenon of positive and negative short circuit sparking in the polarization process, reducing the risk of dry-pressed tablet explosion and polarization equipment damage, protecting the personal safety of the operators, and reducing the occurrence of production accidents. 3. The silver brushing surface of the dry-pressed tablet will not be interfered by the tweezers, ensuring uniform coating of the silver paste on the surface of the dry-pressed tablet, improving the polarization effect, making the test data more accurate, and thus the performance of the powder can be more accurately judged. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a structural schematic view of the utility model.

[0014] Figure 2 is an exploded schematic view of the utility model. DETAILED DESCRIPTION

[0015] As shown in Figure 1 An auxiliary tool for dry pressing piece silver brushing of ceramic capacitor powder, mainly composed of a base 1 and a mold 2.

[0016] The top surface of the base 1 is provided with four limit posts 3, and the mold 2 is placed on the top surface of the base 1 and limited in front, back, left and right by the limit posts 3. Specifically, the middle part of the top surface of the base 1 in four directions is provided with a plug hole corresponding to the limit post 3, and the limit post 3 is inserted into the plug hole. The mold 2 is limited in front, back, left and right in the space surrounded by the four limit posts 3, which is simple in structure and convenient to arrange.

[0017] A plurality of placement holes 4 for placing dry pressing pieces are formed on the mold 2, the hole diameter of the placement hole 4 is 0.5-1mm larger than the diameter of the dry pressing piece, and the thickness of the mold 2 is 0.5-1mm thicker than the thickness of the dry pressing piece, so that the side end of the dry pressing piece can be completely hidden in the placement hole 4, thereby ensuring that the silver paste will not adhere to the side surface of the dry pressing piece when the operator brushes the silver paste on the dry pressing piece (since the silver paste has viscosity, and the hole diameter of the placement hole 4 is only slightly larger than the diameter of the dry pressing piece, it is difficult for the silver paste to flow into the side surface of the dry pressing piece through the gap).

[0018] Specifically, a plurality of placement holes 4 are arranged in a matrix on the mold 2 to increase the number of dry pressing pieces in one round of silver brushing and further improve production efficiency.

[0019] Specifically, 9 or 12 placement holes 4 are arranged in a matrix on the mold 2, and the specific number can be reasonably designed according to actual production needs and the size of the mold 2.

[0020] The base 1 is equipped with multiple sets of molds 2, and the placement holes 4 on each set of molds 2 correspond to dry pressing pieces of different sizes, i.e. multiple sets of molds 2 are designed according to the size of the dry pressing piece. When brushing silver, select the mold 2 matched with the corresponding dry pressing piece and place it on the top surface of the base 1 to meet the silver brushing needs of dry pressing pieces of different specifications.

[0021] The base 1 and the mold 2 are both made of aluminum alloy material, which has the advantages of light weight, high strength, corrosion resistance, etc., and is convenient for operators to carry and use, while ensuring the service life of the auxiliary tool.

[0022] A sink is provided on the top surface of the base 1 corresponding to the position of the opposite ends of the mold 2, which facilitates the operator to clamp or grab the mold from both sides of the sink, so that it can be separated from the base 1 upward, and the mold 2 is convenient to take out.

Claims

1. An auxiliary tool for dry pressing and silvering ceramic capacitor powder, characterized in that: The device includes a base (1) and a mold (2). The base (1) has four limiting posts (3) on its top surface. The mold (2) is placed on the top surface of the base (1) and is limited in all directions between the limiting posts (3). The mold (2) has multiple placement holes (4) for placing dry pressing sheets. The diameter of the placement holes (4) is 0.5-1mm larger than the diameter of the dry pressing sheets. The thickness of the mold (2) is 0.5-1mm thicker than the thickness of the dry pressing sheets, so that the side of the dry pressing sheets can be completely hidden in the placement holes (4).

2. The auxiliary tool for dry pressing and silvering ceramic capacitor powder according to claim 1, characterized in that: The base (1) is equipped with multiple sets of molds (2), and the placement holes (4) on each set of molds (2) correspond to dry pressing sheets of different sizes.

3. The auxiliary tool for dry pressing and silvering ceramic capacitor powder according to claim 1, characterized in that: The mold (2) has multiple placement holes (4) arranged in a matrix.

4. The auxiliary tool for dry pressing and silvering ceramic capacitor powder according to claim 3, characterized in that: The mold (2) has 9 or 12 placement holes (4) arranged in a matrix.

5. The auxiliary tool for dry pressing and silvering ceramic capacitor powder according to claim 1, characterized in that: The base (1) has insertion holes in the middle of the four directions of the top surface corresponding to the limiting posts (3). The limiting posts (3) are inserted into the insertion holes, and the mold (2) is limited in the space enclosed by the four limiting posts (3).

6. The auxiliary tool for dry pressing and silvering ceramic capacitor powder according to claim 1, characterized in that: Both the base (1) and the mold (2) are made of aluminum alloy.

7. The auxiliary tool for dry pressing and silvering ceramic capacitor powder according to claim 1, characterized in that: The base (1) has a groove on its top surface at the position corresponding to the opposite ends of the mold (2).

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