An automatic dosing device for silver-plated protective water of lead frame

Abstract

The utility model provides an automatic dosing device for silver-plated protective water for lead frames, comprising: a protective jellyfish tank, a circulation pump, a coating protection treatment tank, a protective water configuration module, a dosing pump, a controller and a concentration index detection module, wherein the protective water configuration module is connected to the protective jellyfish tank via the dosing pump, the protective jellyfish tank is circulatedly connected to the coating protection treatment tank via the circulation pump, the concentration index detection module is arranged inside the protective jellyfish tank, and the protective water configuration module, the dosing pump, the circulation pump and the concentration index detection module are electrically connected to the controller. The automatic dosing device for silver-plated protective water for lead frames provided by the utility model can realize automatic configuration and addition of protective water, ensure that the concentration of protective water meets the requirements, and is easy to use.

Description

Technical Field

[0001] The utility model relates to the technical field of silver plating of lead frames, in particular to an automatic dosing device for silver plating protective water of lead frames. Background Art

[0002] At present, the lead frame must be sealed with protective water after silver plating to form a protective film on the silver layer. The functions of the protective water are mainly to prevent the silver plating layer from oxidizing and discoloring, improve the high temperature resistance of the silver layer, increase the bonding force of the solid crystal silver glue, improve the firmness of the gold wire welding, and prevent the packaging glue from creeping. The concentration of the protective water is constantly consumed with the increase in the number of products produced, and the quality of the protective film is gradually deteriorating. Due to the complex composition of the protective water and the lack of regularity in manual addition, the concentration of the protective water fluctuates, resulting in uneven silver plating protective layer, high temperature discoloration, loose welding wires and other abnormal problems during the back-end packaging test. Therefore, it is very necessary to design a new type of automatic dosing device for lead frame silver plating protective water. Utility Model Content

[0003] The utility model aims to provide an automatic dosing device for silver-plated protective water of a lead frame, which can realize automatic configuration and addition of protective water, ensure that the concentration of the protective water meets the requirements, and is easy to use.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] A lead frame silver-plated protective water automatic dosing device, comprising: a protective jellyfish tank, a circulation pump, a coating protection treatment tank, a protective water configuration module, a dosing pump, a controller and a concentration index detection module, wherein the protective water configuration module is connected to the protective jellyfish tank through the dosing pump, the protective jellyfish tank is circulatedly connected to the coating protection treatment tank through the circulation pump, the concentration index detection module is arranged inside the protective jellyfish tank, and the protective water configuration module, the dosing pump, the circulation pump and the concentration index detection module are electrically connected to the controller;

[0006] The protection water configuration module includes a configuration box, a dosing component, a stirring module, a moving module and a water outlet module. The moving module is arranged at the bottom of the configuration box, the dosing component is arranged at the top of the configuration box, the stirring module is arranged inside the configuration box corresponding to the dosing component, a water inlet is arranged at the upper part of one side of the configuration box, the water outlet module is arranged at the lower part of one side of the configuration box, the water outlet module is connected to the protection jellyfish tank through a dosing pump, and the stirring module and the water outlet module are electrically connected to the controller.

[0007] Optionally, the stirring module includes a motor, a first partition, a drug feed hopper, a rotating rod, and a stirring assembly. The first partition is arranged on the upper side of the interior of the configuration box, the motor is arranged on the top of the configuration box, the bottom output end of the motor passes through the top of the configuration box to connect to the rotating rod, the drug feed hopper is arranged on the top of the first partition, and an opening is arranged on the lower side of the drug feed hopper, the stirring assembly is arranged at the bottom of the rotating rod, a fixed block is arranged on the top of the motor, the drug adding assembly is arranged on the top of the fixed block, the output end of the drug adding assembly extends into the interior of the configuration box relative to the drug feed hopper, and the motor is electrically connected to the controller.

[0008] Optionally, the stirring assembly includes a second partition, a first stirring shaft, a second stirring shaft, a third stirring shaft, a stirring rod and a transmission assembly. The second partition is arranged on the lower inner side of the configuration box, the first stirring shaft is arranged at the bottom of the rotating rod, the second stirring shaft and the third stirring shaft are arranged on both sides of the first stirring shaft, the tops of the second stirring shaft and the third stirring shaft are rotatably connected to the first partition through a rotating member, the bottoms of the first stirring shaft, the second stirring shaft and the third stirring shaft pass through the second partition, and the bottoms of the first stirring shaft are transmission-connected to the second stirring shaft and the third stirring shaft through the transmission assembly, the stirring rods are evenly arranged on the first stirring shaft, and the second stirring shaft and the third stirring shaft are arranged in the opposite direction to the stirring rod arranged on the first stirring shaft.

[0009] Optionally, the water outlet module includes a water outlet pipe, a solenoid valve and a filter screen. The lower side of the configuration box is connected to the input end of the water outlet pipe, and the output end of the water outlet pipe is provided with a filter port and a water outlet. The filter screen is obliquely arranged inside the water outlet pipe corresponding to the filter port, the switch cover is arranged on the filter port, the water outlet is connected to the dosing pump, the solenoid valve is arranged on the water outlet pipe, and the solenoid valve is electrically connected to the controller.

[0010] Optionally, the mobile module includes a plurality of universal wheels, and the plurality of universal wheels are arranged at the bottom of the configuration box.

[0011] According to the specific embodiments provided by the utility model, the utility model discloses the following technical effects: the utility model provides an automatic dosing device for silver-plated protective water for lead frames, the device comprises a protective jellyfish tank, a circulation pump, a coating protection treatment tank, a protective water configuration module, a dosing pump, a controller and a concentration index detection module, wherein the protective water is configured by the protective water configuration module, during the configuration process, the dosing component is used to add the drug, the stirring module is used to stir, and finally the protective water is discharged into the protective jellyfish tank through the water outlet module and the dosing pump, the water outlet module is provided with a filter screen, which can filter and remove undissolved solids, the protective water circulation of the protective jellyfish tank and the coating protection treatment tank is realized by the circulation pump, the concentration of the protective jellyfish tank is detected by the concentration index detection module, and the protective water configuration and protective water addition are started according to specific needs. The device can realize automatic configuration and addition of protective water to ensure that the concentration of the protective water meets the requirements and is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0013] Figure 1 This is a schematic structural diagram of an automatic dosing device for silver-plated protective water for lead frames according to an embodiment of the utility model;

[0014] Figure 2 Schematic diagram of the module structure for water protection configuration.

[0015] Figure numerals: 1. Protection water configuration module; 2. Dosing pump; 3. Protection jellyfish tank; 4. Circulation pump; 5. Coating protection treatment tank; 6. Controller; 7. Configuration box; 8. Dosing assembly; 9. Motor; 10. Rotating rod; 11. Drug feed hopper; 12. Filter; 13. First partition; 14. Water inlet; 15. Second stirring shaft; 16. First stirring shaft; 17. Third stirring shaft; 18. Second partition; 19. Transmission assembly; 20. Universal wheel; 21. Solenoid valve; 22. Water outlet pipe. DETAILED DESCRIPTION

[0016] The utility model aims to provide an automatic dosing device for silver-plated protective water of a lead frame, which can realize automatic configuration and addition of protective water, ensure that the concentration of the protective water meets the requirements, and is easy to use.

[0017] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0018] like Figure 1 As shown, the lead frame silver-plated protection water automatic dosing device provided by the embodiment of the utility model includes: a protection jellyfish tank 3, a circulation pump 4, a coating protection treatment tank 5, a protection water configuration module 1, a dosing pump 2, a controller 6 and a concentration index detection module, wherein the protection water configuration module 1 is connected to the protection jellyfish tank 3 through the dosing pump 2, the protection jellyfish tank 3 is circulatedly connected to the coating protection treatment tank 5 through the circulation pump 4, the concentration index detection module is arranged inside the protection jellyfish tank 3, and the protection water configuration module 1, the dosing pump 2, the circulation pump 4 and the concentration index detection module are electrically connected to the controller 6;

[0019] like Figure 2 As shown, the protection water configuration module includes a configuration box 7, a dosing component 8, a stirring module, a moving module and a water outlet module. The moving module is arranged at the bottom of the configuration box 7, the dosing component 8 is arranged at the top of the configuration box 7, the stirring module is arranged inside the configuration box 7 corresponding to the dosing component 8, a water inlet 14 is arranged at the upper part of one side of the configuration box 7, the water outlet module is arranged at the lower part of one side of the configuration box 7, the water outlet module is connected to the protection jellyfish tank 3 through the dosing pump 2, the stirring module and the water outlet module are electrically connected to the controller, and in addition, a liquid level meter can be re-arranged in the configuration box to realize liquid level detection.

[0020] The concentration index detection module can use conductivity test module, specific gravity test module and pH value test module to realize index test, or directly collect the protection water in the jellyfish protection tank and use other methods to realize concentration test, perform concentration test at fixed time intervals, and choose whether to start the protection water addition.

[0021] The stirring module includes a motor 9, a first partition 13, a medicine feed hopper 11, a rotating rod 10, and a stirring assembly. The first partition 13 is arranged on the upper side of the interior of the configuration box 7, the motor 9 is arranged on the top of the configuration box 7, the bottom output end of the motor 9 passes through the top of the configuration box 7 to connect to the rotating rod 10, the medicine feed hopper 11 is arranged on the top of the first partition 13, and an opening is arranged on the lower side of the medicine feed hopper 11, the stirring assembly is arranged at the bottom of the rotating rod 10, a fixed block is arranged on the top of the motor 9, the dosing assembly 8 is arranged on the top of the fixed block, the output end of the dosing assembly 8 extends into the interior of the configuration box 7 with respect to the medicine feed hopper 11, and the motor 9 is electrically connected to the controller.

[0022] The stirring assembly includes a second partition 18, a first stirring shaft 16, a second stirring shaft 15, a third stirring shaft 17, a stirring rod and a transmission assembly 19. The second partition 18 is arranged at the lower side of the configuration box 7. The first stirring shaft 16 is arranged at the bottom of the rotating rod 10. The second stirring shaft 15 and the third stirring shaft 17 are arranged on both sides of the first stirring shaft 16. The tops of the second stirring shaft 15 and the third stirring shaft 17 are rotatably connected to the first partition 13 through a rotating member. The bottoms of the first stirring shaft 16, the second stirring shaft 15 and the third stirring shaft 17 pass through the second partition 18, and the bottoms of the first stirring shaft 16 are transmission-connected to the second stirring shaft 15 and the third stirring shaft 17 through the transmission assembly 19. The stirring rods are evenly arranged on the first stirring shaft 16. The second stirring shaft 15 and the third stirring shaft 17 are arranged in the opposite direction to the stirring rod arranged on the first stirring shaft 16.

[0023] The utility model provides an embodiment, in which the transmission component 19 can be implemented by a driving gear and a driven gear, wherein the bottom of the first stirring shaft 16 is connected to the driving gear, and the bottoms of the second stirring shaft 15 and the third stirring shaft 17 are connected to the driven gear, and the driving gear is meshed with the driven gear, and the driving gear drives the driven gear to rotate, thereby realizing that the first stirring shaft 16 drives the second stirring shaft 15 and the third stirring shaft 17 to rotate.

[0024] The water outlet module includes a water outlet pipe 22, a solenoid valve 21 and a filter 12. The lower side of the configuration box 7 is connected to the input end of the water outlet pipe 22. The output end of the water outlet pipe 22 is provided with a filter port and a water outlet. The filter 12 is obliquely arranged inside the water outlet pipe 22 corresponding to the filter port. The switch cover is arranged on the filter port. The water outlet is connected to the dosing pump 2. The solenoid valve 23 is arranged on the water outlet pipe 22, and the solenoid valve 23 is electrically connected to the controller.

[0025] The mobile module includes a plurality of universal wheels 20 , and a plurality of universal wheels 20 are disposed at the bottom of the configuration box 7 .

[0026] The use process of the utility model is as follows: the concentration index detection module detects the concentration of the protection water of the protection jellyfish tank 3. If the concentration is lower than the preset threshold value, the controller controls the protection water configuration module 1 to start. First, a preset number of grams of configuration agent is added through the dosing component 8, and a preset number of milliliters of configuration liquid is added through the water inlet 14, wherein the liquid level detection can be achieved through a liquid level meter. At this time, the controller controls the stirring module to start, and the medicine liquid falls into the configuration liquid through the opening of the medicine feed hopper 11. At this time, the motor 9 drives the first stirring shaft 16 to rotate, and drives the second stirring shaft 15 and the third stirring shaft 17 to stir through the transmission component 19, so as to achieve full mixing of the configuration liquid, obtain protection water, and discharge it through the water outlet module, wherein dust and impurities that may appear are filtered out through the filter net 12 and discharged from the filter port.

[0027] The utility model provides different configuration concentration records of protection water, as shown in Table 1;

[0028] Table 1 Record of different protection water concentrations

[0029]

[0030]

[0031] The utility model provides an automatic dosing device for silver-plated protective water for a lead frame, which comprises a protective jellyfish tank, a circulation pump, a coating protection treatment tank, a protective water configuration module, a dosing pump, a controller and a concentration index detection module, wherein the protective water is configured through the protective water configuration module, during the configuration process, the drug is added through the dosing component, and the drug is stirred through the stirring module, and finally discharged into the protective jellyfish tank through the water outlet module and the dosing pump, the water outlet module is provided with a filter screen, which can filter and remove undissolved solids, and the protective water circulation of the protective jellyfish tank and the coating protection treatment tank is realized through the circulation pump, the concentration of the protective jellyfish tank is detected through the concentration index detection module, and the protective water configuration and protective water addition are started according to specific needs. The device can realize automatic configuration and addition of protective water, ensure that the concentration of the protective water meets the requirements, and is easy to use.

[0032] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. At the same time, for those skilled in the art, according to the ideas of the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. An automatic dosing device for silver-plated protective water for lead frame, comprising a protective jellyfish tank, a circulation pump and a coating protection treatment tank, characterized in that: include: A protection water configuration module, a dosing pump, a controller and a concentration index detection module, wherein the protection water configuration module is connected to the protection jellyfish tank through the dosing pump, the protection jellyfish tank is circulatedly connected to the coating protection treatment tank through a circulation pump, the concentration index detection module is arranged inside the protection jellyfish tank, and the protection water configuration module, the dosing pump, the circulation pump and the concentration index detection module are electrically connected to the controller; The protection water configuration module includes a configuration box, a dosing component, a stirring module, a moving module and a water outlet module. The moving module is arranged at the bottom of the configuration box, the dosing component is arranged at the top of the configuration box, the stirring module is arranged inside the configuration box corresponding to the dosing component, a water inlet is arranged at the upper part of one side of the configuration box, the water outlet module is arranged at the lower part of one side of the configuration box, the water outlet module is connected to the protection jellyfish tank through a dosing pump, and the stirring module and the water outlet module are electrically connected to the controller.

2. The lead frame silver plating protection water automatic dosing device according to claim 1 is characterized in that: The stirring module includes a motor, a first partition, a medicine feed hopper, a rotating rod, and a stirring assembly. The first partition is arranged on the upper side of the interior of the configuration box, the motor is arranged on the top of the configuration box, the bottom output end of the motor passes through the top of the configuration box to connect to the rotating rod, the medicine feed hopper is arranged on the top of the first partition, and an opening is arranged on the lower side of the medicine feed hopper, the stirring assembly is arranged at the bottom of the rotating rod, a fixed block is arranged on the top of the motor, the medicine adding assembly is arranged on the top of the fixed block, the output end of the medicine adding assembly extends into the interior of the configuration box relative to the medicine feed hopper, and the motor is electrically connected to the controller.

3. The lead frame silver plating protection water automatic dosing device according to claim 2 is characterized in that: The stirring assembly includes a second partition, a first stirring shaft, a second stirring shaft, a third stirring shaft, a stirring rod and a transmission assembly. The second partition is arranged on the lower inner side of the configuration box, the first stirring shaft is arranged at the bottom of the rotating rod, the second stirring shaft and the third stirring shaft are arranged on both sides of the first stirring shaft, the tops of the second stirring shaft and the third stirring shaft are rotatably connected to the first partition through a rotating member, the bottoms of the first stirring shaft, the second stirring shaft and the third stirring shaft pass through the second partition, and the bottoms of the first stirring shaft are transmission-connected to the second stirring shaft and the third stirring shaft through the transmission assembly, the stirring rods are evenly arranged on the first stirring shaft, and the second stirring shaft and the third stirring shaft are arranged in the opposite direction to the stirring rod arranged on the first stirring shaft.

4. The lead frame silver plating protection water automatic dosing device according to claim 3 is characterized in that: The water outlet module includes a water outlet pipe, a solenoid valve and a filter screen. The lower side of the configuration box is connected to the input end of the water outlet pipe. The output end of the water outlet pipe is provided with a filter port and a water outlet. The filter screen is obliquely arranged inside the water outlet pipe corresponding to the filter port. A switch cover is arranged on the filter port. The water outlet is connected to the dosing pump. The solenoid valve is arranged on the water outlet pipe, and the solenoid valve is electrically connected to the controller.

5. The lead frame silver plating protection water automatic dosing device according to claim 1, characterized in that: The mobile module includes a plurality of universal wheels, and the bottom of the configuration box is provided with a plurality of the universal wheels.

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