CN-224210753-U - Double-sided solder paste printing device for tube core

CN224210753UCN 224210753 UCN224210753 UCN 224210753UCN-224210753-U

Abstract

The utility model discloses a die double-sided solder paste printing device in the technical field of electronic element processing. The device comprises a first printing part and a second printing part, wherein the first printing part comprises a first carrier and a first steel mesh, the second printing part comprises a second carrier and a second steel mesh, the first carrier is provided with a plurality of first step through holes, a die can be loaded in each first step through hole, a first step surface is arranged in each first step through hole, the top surface of the die contacts with the first step surface, the bottom surface of the die is exposed out of the first step through hole, the second carrier is provided with a plurality of second step through holes, the die can be loaded in each second step through hole, a second step surface is arranged in each second step through hole, the bottom surface of the die contacts with the second step surface, the top surface of the die is exposed out of the second step through hole, the first steel mesh is used for conducting solder paste printing on the bottom surface of the die loaded on the first carrier, and the second steel mesh is used for conducting solder paste printing on the top surface of the die loaded on the second carrier. The utility model has the advantage of improving the die filling efficiency.

Inventors

CHENG CHEN
ZHANG KUI
TENG JIABING

Assignees

扬州四菱电子有限公司

Dates

Publication Date: 20260508
Application Date: 20250630

Claims (8)

1. A die double-sided solder paste printing device is characterized by comprising a first printing part and a second printing part which are arranged on a workbench, wherein the first printing part comprises a first carrier and a first steel mesh, the second printing part comprises a second carrier and a second steel mesh, the first carrier is provided with a plurality of first step through holes, a die can be loaded in each first step through hole, a first step surface is arranged in each first step through hole, the top surface of the die contacts the first step surface, the bottom surface of the die is exposed out of the first step through hole, the second carrier is provided with a plurality of second step through holes, each second step through hole can be loaded with the die, a second step surface is arranged in each second step through hole, the bottom surface of the die contacts the second step surface, the top surface of the die is exposed out of the second step through hole, the first step through holes of the first carrier and the second step through holes of the second carrier are arranged in opposite alignment when the two carriers are aligned, the first step surface of the first step through holes and the second step through holes are in contact with the second step through holes, the second step through holes and the second step through holes are formed on the second carrier and are used for carrying out of the second movable die loading of the solder paste when the die is aligned, and the die can be used for printing the die on the second carrier.
2. The device for printing double-sided solder paste on a die of claim 1, wherein the number of the first step through holes is the same as that of the second step through holes, the first step through holes comprise first upper through holes and first lower through holes, the diameter of the first upper through holes is larger than that of the first lower through holes, a first step surface is formed at the joint of the first upper through holes and the first lower through holes, the die is placed in the first upper through holes, the top surface of the die is in contact with the first step surface, the thickness of the die is larger than the depth of the first upper through holes, the second step through holes comprise second upper through holes and second lower through holes, the diameter of the second upper through holes is larger than that of the second lower through holes, a second step surface is formed at the joint of the second upper through holes and the second lower through holes, the die is placed in the second upper through holes, and the bottom surface of the die is in contact with the second step surface.
3. The device for printing double-sided solder paste on a die of claim 2, wherein the first steel mesh is provided with a plurality of first printing holes, the aperture of each first printing hole is smaller than that of each second lower through hole, the first printing holes are opposite to the bottom surface of the die in the first stepped through hole, and the second steel mesh is provided with a plurality of second printing holes opposite to the top surface of the die in the second stepped through hole.
4. The device for printing double-sided solder paste on a die of claim 1, wherein the second carrier is provided with a plurality of first strip-shaped grooves and second strip-shaped grooves, the first strip-shaped grooves are uniformly distributed along the transverse direction of the second carrier, each first strip-shaped groove is arranged in a long strip shape along the width direction of the second carrier, the second strip-shaped grooves are uniformly distributed along the longitudinal direction of the second carrier, each second strip-shaped groove is arranged in a long strip shape along the length direction of the second carrier, the intersection of the first strip-shaped grooves and the second strip-shaped grooves is connected with a second step through hole, and the slotted holes of the first strip-shaped grooves and the second strip-shaped grooves are communicated with the inside of the second step through hole.
5. The device for printing double-sided solder paste on a tube core of claim 1, wherein the first printing part further comprises a first base, a first positioning plate is arranged on the first base, a first carrier is arranged at the top of the first positioning plate in a positioning mode, a first steel mesh capable of overturning is arranged above the first carrier, a first support is arranged at one end of the first base, one end of the first steel mesh is hinged with the first support, first positioning holes are formed in four corner positions of the first carrier, and first positioning columns penetrating through the first positioning holes are arranged on the first positioning plate.
6. The device for printing double-sided solder paste on a die of claim 5, wherein the second printing part further comprises a second base, a second positioning plate is arranged on the second base, a second carrier is arranged at the top of the second positioning plate in a positioning mode, a second steel mesh capable of overturning is arranged above the second carrier, a second support is arranged at one end of the second base, one end of the second steel mesh is hinged to the second support, second positioning holes are formed in four corner positions of the second carrier, and second positioning columns penetrating through the second positioning holes are arranged on the second positioning plate.
7. The device for printing double-sided solder paste on a die according to claim 2, wherein the die is loaded in a die storage box, the die storage box is provided with a plurality of storage grooves, the die is placed in each storage groove, the number of the first step through holes is the same as that of the storage grooves, the first step through holes and the storage grooves can be aligned when the first carrier and the die storage box are attached, and a second movable channel is formed between the first step surface of the first step through holes and the bottom of the storage grooves in attaching alignment.
8. The device of claim 6, wherein the first and second positioning holes are aligned in alignment with each other.

Description

Double-sided solder paste printing device for tube core Technical Field The utility model relates to the technical field of electronic element processing, in particular to a die double-sided solder paste printing device. Background At present, the welding mode of the bridge core die of the single-arm rectifier bridge series is as follows, a tin sheet is added between the tube core and the pole piece through die fixing, and the tube core and the pole piece are sent into a sintering furnace to be sintered, so that welding is completed. However, the method of placing the tin sheet for welding can lead to very complicated die filling steps, the thin tin paste needs to be used for coating the pole piece in advance, and then the tin sheet is added during die filling, so that the die filling efficiency is greatly reduced. Disclosure of utility model The utility model aims to provide a die double-sided solder paste printing device capable of improving die filling efficiency. In order to achieve the purpose of the utility model, the die double-sided solder paste printing device adopts the following technical scheme: The die double-sided solder paste printing device comprises a first printing part and a second printing part which are arranged on a workbench, wherein the first printing part comprises a first carrier and a first steel mesh, the second printing part comprises a second carrier and a second steel mesh, the first carrier is provided with a plurality of first step through holes, a die can be loaded in each first step through hole, a first step surface is arranged inside each first step through hole, the top surface of the die is contacted with the first step surface, the bottom surface of the die is exposed out of the first step through hole, the second carrier is provided with a plurality of second step through holes, each second step through hole can be loaded with the die, a second step surface is arranged inside each second step through hole, the bottom surface of the die is contacted with the second step surface, the top surface of the die is exposed out of the second step through hole, the first step through holes of the first carrier and the second step through holes of the second carrier are arranged in a positive alignment manner when the two carriers are aligned, the first step surface of the first step through holes and the second step through holes of the second step through holes are in contact with the first step surfaces of the two carriers, the die can be conveniently aligned, the second step through holes can be formed on the second step surfaces of the second carrier, and the second step through holes can be used for carrying out of the movable solder paste printing on the second steel mesh when the top surface of the die is formed on the second carrier, and the second step through holes can be used for carrying movable printing a movable printing paste. Preferably, the number of the first step through holes is the same as that of the second step through holes, the first step through holes comprise first upper through holes and first lower through holes, the diameter of the first upper through holes is larger than that of the first lower through holes, a first step surface is formed at the joint of the first upper through holes and the first lower through holes, a tube core is placed in the first upper through holes, the top surface of the tube core is contacted with the first step surface, the thickness of the tube core is larger than the depth of the first upper through holes, the second step through holes comprise second upper through holes and second lower through holes, the diameter of the second upper through holes is larger than that of the second lower through holes, a second step surface is formed at the joint of the second upper through holes and the second lower through holes, and the bottom surface of the tube core is contacted with the second step surface. Preferably, the first steel mesh is provided with a plurality of first printing holes, the aperture of each first printing hole is smaller than that of each second lower through hole, the first printing holes are opposite to the bottom surface of the tube core in the first stepped through hole, the second steel mesh is provided with a plurality of second printing holes, and the second printing holes are opposite to the top surface of the tube core in the second stepped through hole. Preferably, the second carrier is provided with a plurality of first strip-shaped grooves and second strip-shaped grooves, the first strip-shaped grooves are uniformly distributed in the transverse direction of the second carrier, each first strip-shaped groove is uniformly distributed in the longitudinal direction of the second carrier, each second strip-shaped groove is uniformly distributed in the longitudinal direction of the second carrier, the intersection of the first strip-shaped groove and the second strip-shaped groove is connected with