CN205133757U - Granular material's rotatory electroplating device of disconnect -type - Google Patents

Abstract

The utility model discloses a separated rotary electroplating device for granular materials, which comprises a power supply unit, a plating solution circulation unit and an electroplating unit; The plating solution constitutes a loop; the plating solution circulation unit circulates the plating solution through the electroplating unit through the action of a peristaltic pump; the main body of the electroplating unit is an electroplating drum, and a carbon brush is provided in the middle of the outer wall of the drum to slide and connect with the conductive layer. It is connected to the cathode of the power supply, and the conductive layer is connected to the graphite cathode plate inside the drum through the cathode connecting wire buried in the drum wall. The utility model increases the stability of various performance parameters of the plating solution through the synergistic effect of the power supply unit, the plating solution circulation unit and the electroplating unit, improves the electroplating efficiency, and avoids missing plating of granular materials, burning or uneven plating. Phenomenon, significantly improve the coating quality.

Description

A separate rotary electroplating equipment for granular materials

technical field

The utility model relates to an electroplating equipment, in particular to a separated rotary electroplating equipment for granular materials.

Background technique

Electroplating is a process that uses electrolysis to attach a layer of metal film to the surface of metal or other materials, so as to prevent metal oxidation, improve material wear resistance, conductivity, reflectivity or change material properties; the quality of electroplating products depends on Due to the uniformity and firmness of the coating, especially granular materials (such as alloy powder, activated carbon, expanded graphite, etc.), since the granular materials themselves are easy to disperse and concentrate in the electroplating solution, it is easy to cause uneven distribution of current on the plated parts. Both, in the traditional electroplating method, it is easy to have missed plating, burnt coating or uneven phenomenon, and the electroplating efficiency is low. Because the particle size of the granular material itself is small, it is easy to disperse into the electroplating solution, causing the plating solution to be polluted, which is serious. Affect the quality of electroplating finished products.

Utility model content

The purpose of this utility model is to provide a separate rotary electroplating equipment for granular materials to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A separate rotary electroplating device for granular materials, which includes a power supply unit, a plating solution circulation unit, and an electroplating unit. The cathode and anode of the power supply unit are separately connected to the electroplating unit and the plating solution circulation unit, and a circuit is formed by circulating the plating solution; The plating solution circulation unit circulates the plating solution through the electroplating unit through the action of the peristaltic pump, and the performance parameters of the electroplating solution are kept stable by the stirring device and the electric heating tube; The role of the coupling realizes the rotation. There is a conductive layer in the middle of the outer wall of the drum. It goes around the drum and connects the carbon brush to the conductive layer through a spring. The carbon brush is connected to the cathode of the power unit, and the conductive layer is buried in the drum wall. The cathode connecting wire is connected to the graphite cathode plate inside the drum, and four graphite cathode plates of a certain height are evenly arranged inside the drum, and a filter screen is installed at the inlet and outlet of the drum, and the inlet and outlet are set at the bottom of the drum.

Preferably, the electroplating drum is coated with an insulating layer.

Preferably, the material of the carbon brush is electrochemical graphite, which is slidingly connected to the conductive layer, and the conductive layer is connected to the graphite cathode plate inside the drum through the wire buried in the drum wall.

Preferably, the number of graphite cathode plates in the electroplating drum is 2-8, and the ratio of the height to the diameter of the electroplating drum is 1:5-1:10.

Preferably, the conductive layer has a width of 2-10 cm.

Compared with the prior art, the utility model has the following beneficial effects:

The separate rotary electroplating equipment for granular materials uses a power supply unit, a plating solution circulation unit and an electroplating unit to achieve uniform electroplating of granular materials. The cathode and anode separation connection method of the power supply unit can avoid overcurrent during the electroplating process. Large and local overheating can improve the quality of the coating; the plating solution circulation unit can keep the performance parameters of the plating solution stable, make the temperature and composition of the plating solution evenly distributed, and avoid the deterioration of the performance of the plating solution; the graphite cathode plate in the electroplating unit can rotate when the drum rotates Stir the particles to be plated and provide electrons, which avoids the phenomenon of missed plating, burnt or uneven coating, and improves the plating efficiency. The filter screen in the plating solution port can prevent particulate matter from contaminating the plating solution. The device of the utility model is simple and reliable, easy to control, suitable for large-scale production and popularized use.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a schematic structural diagram of the plating solution circulation unit of the present invention.

Fig. 3 is a structural schematic diagram of the electroplating unit of the present invention.

Fig. 4 is a cross-sectional view of the carbon brush of the electroplating drum in Fig. 3 of the present invention.

As shown in the figure, 1 is a DC power supply; 2 is an electroplating solution storage tank; 3 is an anode electrode; 4 is an electroplating solution; 5 is a stirring device; 6 is a peristaltic pump; 7 is a coupling; 8 is an electric motor; 10 is an electroplating drum; 11 is a carbon brush; 12 is a graphite cathode plate; 13 is a filter; 14 is a rolling bearing; 15 is a cathode connection line; 16 is a conductive layer; 17 is an electric heating tube.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

As shown in Fig. 1, the utility model provides a separate rotary electroplating equipment for granular materials, including a power supply unit, a plating solution circulation unit and an electroplating unit. The anode electrode 3 of the DC power supply 1 of the power supply unit is inserted in the electroplating solution 4, and the cathode is connected with the carbon brush 11 on the electroplating cylinder 10; 6. The stirring device 5 on the upper side, the electric heating tube 17 at the bottom and the water delivery pipe; the main body of the electroplating unit is an electroplating drum 10, the outside of which is connected to the motor 8 through a coupling 7, and the rolling bearing 14 is installed on the electroplating drum 10, a circle of conductive layer 16 is provided in the middle of the outer wall of the electroplating drum 10, and the carbon brush 11 is slidably connected to the conductive layer 16 through a spring. The internal graphite cathode plate 12 is connected, and a filter screen 13 is installed at the inlet and outlet of the plating solution of the electroplating drum 10 , and the inlet and outlet 9 are arranged at the bottom of the electroplating drum 10 .

During actual work, the granular material to be plated is fed to 1/3 to 1/2 of the volume of the electroplating drum 10 through the inlet and outlet 9 after degreasing, roughening, activation, and chemical plating (non-conductive particles itself). Adjust the temperature of the plating solution to the required level by the electric heating tube 17 and the stirring device 5, turn on the peristaltic pump 6 and the motor 8, and turn on the DC power supply 1 when the electroplating solution flows out from the electroplating drum 10, and use the electroplating drum 10 and the graphite cathode plate 12 together The function is to make the granular material evenly electroplate, and control the flow rate of the plating solution and the rotation speed of the electroplating drum 10 to adjust the thickness of the coating.

Working principle: The separated rotary electroplating equipment for granular materials realizes electroplating through the power supply unit, plating solution circulation unit and electroplating unit. During the electroplating process, the performance parameters of the plating solution are kept stable and the granular materials Uniform access to electrons and other conditions to obtain high-quality coatings.

It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from all points of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to fall within the scope of the claims All changes within the meaning and range of equivalents of the required elements are included in the present invention. Any reference sign in a claim should not be construed as limiting the claim concerned.

In addition, it should be understood that although this specification is described according to implementation modes, not each implementation mode only contains an independent technical solution, and this description in the specification is only for clarity, and those skilled in the art should take the specification as a whole , the technical solutions in the various embodiments can also be properly combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. A separate rotary electroplating device for granular materials, which includes a power supply unit, a plating solution circulation unit and an electroplating unit, the cathode and anode of the power supply unit are separately connected to the electroplating unit and the plating solution circulation unit, and are formed by circulating the plating solution Loop; the plating solution circulation unit circulates the plating solution through the electroplating unit through the action of a peristaltic pump, and the electroplating solution is kept stable by the stirring device and the electric heating tube; the main body of the electroplating unit is an electroplating drum, and its exterior is connected to the motor The rotation is realized through the function of the coupling. There is a conductive layer in the middle of the outer wall of the drum, and a circle around the drum. The carbon brush and the conductive layer are slidably connected by a spring. The carbon brush is connected to the cathode of the power supply, and the conductive layer is buried in the drum wall. The cathode connecting wire is connected to the graphite cathode plate inside the drum, and four graphite cathode plates of a certain height are evenly arranged inside the drum, and a filter screen is installed at the inlet and outlet of the drum, and the inlet and outlet are set at the bottom of the drum. 2. A separate rotary electroplating device for granular materials according to claim 1, characterized in that the material of the carbon brush is electrochemical graphite, which is slidingly connected to the conductive layer, and the conductive layer passes through the wire buried in the drum wall Connected to the graphite cathode plate inside the drum. 3. A separate rotary electroplating device for granular materials according to claim 1, characterized in that the electroplating drum is coated with an insulating layer. 4. A separate spin-plating device for granular materials according to claim 1, characterized in that the width of the conductive layer is 2-10 cm. 5. A separate rotary electroplating device for granular materials according to claim 1, characterized in that the number of graphite cathode plates in the electroplating drum is 2 to 8, and the ratio of the height to the diameter of the electroplating drum is 1:5. ~1:10.