CN113445089A

CN113445089A - Matte electroplating process

Info

Publication number: CN113445089A
Application number: CN202110615352.8A
Authority: CN
Inventors: 洪忠武
Original assignee: Alpha Guangzhou Auto Parts Co ltd
Current assignee: Alpha Guangzhou Auto Parts Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-09-28

Abstract

The invention discloses a matte electroplating process which comprises an electroplating bath, a stroke plate, a clamping groove, a first circulating pipe, a flow meter, a conveying pump, a liquid inlet pipe, an overflow groove, a frequency converter, a reciprocating motor and a controller, wherein the stroke plate is arranged at the bottom end of the electroplating bath, the overflow groove, the frequency converter and the reciprocating motor are arranged on the outer wall of one side of the electroplating bath, the conveying pump is arranged on the outer wall of the other side of the electroplating bath, the conveying pump is respectively connected with the first circulating pipe and a second circulating pipe, the flow meter is arranged on the first circulating pipe, the liquid inlet pipe is arranged at the upper end of the electroplating bath, an electromagnetic valve is arranged on the liquid inlet pipe, the conveying pump, the electromagnetic valve, the frequency converter and the reciprocating motor are all connected with the controller, the flow meter is regulated and controlled by the controller to be 120L/min, and the operation parameter of the reciprocating motor is 27H. According to the invention, the delivery pump and the flowmeter are additionally arranged, so that the liquid medicine in the electroplating bath can be controlled circularly, and the frequency converter can control the swing amplitude of the stroke plate, thereby accelerating the electroplating process.

Description

Matte electroplating process

Technical Field

The invention relates to the technical field of machining, in particular to a matte electroplating process.

Background

The electroplating process is a method for laying a layer of metal on a conductor by utilizing the principle of electrolysis. Electroplating is a surface processing method in which cations of a pre-plated metal in a plating solution are deposited on the surface of a base metal by electrolysis using the base metal to be plated as a cathode in a salt solution containing the pre-plated metal to form a plating layer.

The plating performance is different from that of the base metal, and has new characteristics. The plating layer is divided into a protective plating layer, a decorative plating layer and other functional plating layers according to the functions of the plating layer, when in electroplating, plating layer metal or other insoluble materials are used as an anode, a workpiece to be plated is used as a cathode, and cations of the plating layer metal are reduced on the surface of the workpiece to be plated to form the plating layer. Can enhance the corrosion resistance, increase the hardness, prevent abrasion, improve the conductivity, the smoothness, the heat resistance and the surface beauty of the metal. The electroplating process can also be divided into highlight electroplating and matte electroplating, after part of mechanical parts are treated by the highlight electroplating process, the surface color of an electroplated product is strong, the surface color can reflect light and be dazzling after light irradiation, dirt is easily left after the parts are touched by hands, and meanwhile, after the parts are treated by the electroplating process, the internal stress of the electroplated product is large, and the durability of the electroplated product can be reduced.

After mass retrieval, the prior art is found, the publication number is CN101255594B, and discloses an electroplating production process and equipment, wherein the electroplating equipment comprises an electroplating cylinder body, an electrode and a solution storage cylinder; a high-pressure cavity, an electroplating solution cylinder and an overflow groove are arranged in the electroplating cylinder body, a nozzle is arranged in the electroplating solution cylinder, one end of the nozzle is communicated with the high-pressure cavity, and the electroplating solution cylinder is communicated with the overflow groove; the solution storage cylinder is connected with the high-pressure cavity through a liquid inlet pipeline, and the overflow groove is connected with the solution storage cylinder through a vacuum overflow pipeline; the electroplating cylinder body is matched with a sealing cover; the electroplating solution is circulated in the electroplating cylinder, the liquid inlet pipeline, the vacuum overflow pipeline and the solution storage cylinder all the time, so no waste gas, waste water and waste liquid are discharged to a production workshop in the production process, and the method has the characteristic of environmental protection.

In summary, the existing electroplating equipment adds extra liquid medicine on the basis of the highlight electroplating process according to the difference of the production process, so as to realize matte electroplating, but the existing matte electroplating process cannot circularly control the liquid medicine, and meanwhile, an electroplating workpiece needs to swing in the electroplating process, so that the electroplating process is accelerated, and the existing equipment cannot control the swing frequency of an electroplating product placing base, so that an effective and efficient electroplating process flow cannot be obtained.

Disclosure of Invention

The invention aims to provide a matte electroplating process to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a matte electroplating process comprises an electroplating bath, a stroke plate, a clamping groove, a first circulating pipe, a flow meter, a conveying pump, a liquid inlet pipe, an overflow groove, a frequency converter, a reciprocating motor and a controller, wherein the stroke plate is arranged on the inner wall of the bottom end of the electroplating bath;

the controller regulates and controls the flow meter to pass through a numerical value of 120L/min, and the running parameter of the reciprocating motor is 27H.

Preferably, clamping grooves are symmetrically formed in two sides of the inner wall of the bottom end of the electroplating bath, the stroke plate is movably mounted inside the clamping grooves, and grid plates which are distributed in parallel at equal intervals are arranged on the upper surface of the stroke plate;

pulleys are symmetrically arranged on the outer walls of the two sides of the stroke plate, the pulleys are slidably arranged in the clamping grooves, and one end of the stroke rod penetrates through the outer wall of one side of the electroplating bath and is connected with a reciprocating motor;

the inner wall of the bottom end of one side of the electroplating bath is embedded with a linear bearing, the stroke rod is inserted in the linear bearing in a sliding manner, and a sealing rubber ring is connected between the outer wall of the stroke rod and the inner wall of the electroplating bath.

Preferably, the lower end of the first circulating pipe is communicated with one side of the inner wall of the bottom end of the electroplating bath, the upper end of the second circulating pipe is communicated with the outer wall of one side of the upper end of the electroplating bath, and the second circulating pipe is connected with liquid discharge pipes which are distributed at equal intervals.

Preferably, an overflow pipe is arranged on the outer wall of one side of the lower end of the overflow groove, and a filter screen is arranged in the overflow groove;

the overflow pipe is provided with a valve, and the joint of the overflow pipe and the overflow groove is provided with filter paper.

Preferably, the process flow is as follows:

s1: the controller controls the opening state of the electromagnetic valve, controls the flow and the volume of the liquid inlet pipe for introducing the liquid medicine into the electroplating bath, and is used for controlling the inlet amount and the speed of the liquid medicine;

s2: the controller controls the operation of the delivery pump, after the delivery pump operates, the electroplating liquid medicine at the bottom of the electroplating tank is sucked into the delivery pump through the first circulating pipe, the liquid medicine is subjected to flow rate timing, the flow meter detects the transmission flow rate and uploads the transmission flow rate to the controller, and the delivery pump pumps the liquid medicine out and circularly discharges the liquid medicine into the electroplating tank through the second circulating pipe and the liquid discharge pipe;

the controller regulates and controls the rotating speed of the delivery pump according to the flow data uploaded by the flowmeter, and controls the flow of the liquid medicine in the first circulating pipe to be 120L/min;

s3: the controller transmits a signal to the frequency converter, the frequency converter controls the reciprocating motor to operate, the reciprocating motor drives the stroke plate to reciprocate through the stroke rod, and the frequency converter controls the reciprocating frequency of the reciprocating motor to be 27 HZ;

s4: the overflow launder can collect the liquid medicine that overflows in the plating bath, and filter screen and filter paper are used for filtering the metallic impurity in the liquid medicine.

Compared with the prior art, the invention has the beneficial effects that: the invention improves the prior matte electroplating process, adds a delivery pump and a flowmeter, the delivery pump can suck the liquid medicine in the electroplating bath through a first circulating pipe and circulate the liquid medicine into the electroplating bath through a second circulating pipe, thereby realizing the effective cyclic utilization of the liquid medicine and accelerating the electroplating, meanwhile, the flowmeter monitors the liquid medicine flow in the first circulating pipe and feeds the liquid medicine flow back to a controller, and the delivery pump is controlled by the controller to reach the flow rate of 120L/min;

and the controller sends a signal to the frequency converter, and the frequency converter controls the reciprocating motor to operate, so that the swinging frequency of the stroke plate in the electroplating bath is accurately controlled, the optimal electroplating process parameters are realized, and the production of matte electroplating workpieces is facilitated.

Drawings

FIG. 1 is a schematic main sectional view of a plating tank according to the present invention;

FIG. 2 is a schematic view of the connection structure of the transfer pump of the present invention;

FIG. 3 is a schematic view of the trip lever attachment of the present invention;

FIG. 4 is a schematic cross-sectional view of an isopipe of the present invention;

fig. 5 is a schematic view of an electrical connection structure according to the present invention.

In the figure: 1. an electroplating bath; 2. a stroke plate; 3. a grid plate; 4. a card slot; 5. a pulley; 6. a first circulation pipe; 7. a flow meter; 8. a delivery pump; 9. a second circulation pipe; 10. a liquid discharge pipe; 11. an electromagnetic valve; 12. a liquid inlet pipe; 13. an overflow trough; 14. a frequency converter; 15. a reciprocating motor; 16. a linear bearing; 17. sealing the rubber ring; 18. a trip lever; 19. a valve; 20. a filter screen; 21. filtering paper; 22. an overflow pipe; 23. and a controller.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, an embodiment of the present invention includes:

the first embodiment is as follows:

a matte electroplating process comprises an electroplating bath 1, a stroke plate 2, a clamping groove 4, a first circulating pipe 6, a flow meter 7, a conveying pump 8, a liquid inlet pipe 12, an overflow groove 13, a frequency converter 14, a reciprocating motor 15 and a controller 23, wherein the inner wall of the bottom end of the electroplating bath 1 is provided with the stroke plate 2, one side of the stroke plate 2 is connected with a stroke rod 18, the outer wall of one side of the electroplating bath 1 is provided with the overflow groove 13, the frequency converter 14 and the reciprocating motor 15, the outer wall of the other side of the electroplating bath 1 is provided with the conveying pump 8, the conveying pump 8 is respectively connected with the first circulating pipe 6 and a second circulating pipe 9, the flow meter 7 is mounted on the first circulating pipe 6, the liquid inlet pipe 12 is arranged at the upper end of the electroplating bath 1, the electromagnetic valve 11 is mounted on the liquid inlet pipe 12, and the conveying pump 8, the electromagnetic valve 11, the frequency converter 14 and the reciprocating motor 15 of the flow meter 7 are all connected with the controller 23;

the controller 23 regulates the flow meter 7 to pass through a value of 120L/min and the reciprocating motor 15 to operate at a parameter of 27 HZ.

Example two:

clamping grooves 4 are symmetrically formed in two sides of the inner wall of the bottom end of the electroplating bath 1, the stroke plate 2 is movably installed inside the clamping grooves 4, grid plates 3 which are distributed in parallel at equal intervals are arranged on the upper surface of the stroke plate 2, an electroplating workpiece can be placed on the surfaces of the grid plates 3 after electroplating liquid is added into the electroplating bath 1, and the electroplating liquid submerges the surfaces of the workpiece;

pulleys 5 are symmetrically arranged on the outer walls of two sides of the stroke plate 2, the pulleys 5 are slidably arranged in the clamping grooves 4, and one end of a stroke rod 18 penetrates through the outer wall of one side of the electroplating bath 1 and is connected with a reciprocating motor 15;

the inner wall of the bottom end of one side of the electroplating bath 1 is embedded with a linear bearing 16, a stroke rod 18 is inserted in the linear bearing 16 in a sliding way, a sealing rubber ring 17 is connected between the outer wall of the stroke rod 18 and the inner wall of the electroplating bath 1, a controller 23 sends a signal to a frequency converter 14, and the frequency converter 14 controls the reciprocating motor 15 to operate, so that the swinging frequency of the stroke plate 2 in the electroplating bath 1 is accurately controlled, the optimal electroplating process parameters are realized, and the production of matte electroplating workpieces is facilitated.

The lower end of the first circulating pipe 6 is communicated with one side of the inner wall of the bottom end of the electroplating bath 1, the upper end of the second circulating pipe 9 is communicated with the outer wall of one side of the upper end of the electroplating bath 1, and the second circulating pipe 9 is connected with liquid discharge pipes 10 which are distributed at equal intervals.

Opening and closing of the controllable solenoid valve 11 of controller 23, feed liquor pipe 12 can be to the liquid medicine of pouring into in the plating bath 1 into, make plating solution and liquid medicine mix, the plating solution can dilute the liquid medicine, in the electroplating process, 8 accessible first circulating pipes 6 of delivery pump inhale the liquid medicine in the plating bath 1, and through second circulating pipe 9 with the liquid medicine circulating pump in the plating bath 1, the effective cyclic utilization of liquid medicine has been realized, accelerate the electroplating to go on, simultaneously flowmeter 7 monitors the liquid medicine flow in first circulating pipe 6, and feed back to controller 23, through controller 23 control delivery pump 8, reach 120L/min's flow.

Example three:

an overflow pipe 22 is arranged on the outer wall of one side of the lower end of the overflow groove 13, a filter screen 20 is arranged in the overflow groove 13, filter paper 21 is arranged at the joint of the overflow pipe 22 and the overflow groove 13, and a valve 19 is arranged on the overflow pipe 22. When the liquid medicine and the electroplating solution in the electroplating tank 1 are about to overflow the edge of the electroplating tank 1, the liquid medicine and the electroplating solution can flow into the overflow tank 13, the filter screen 20 and the filter paper 21 in the overflow tank 13 can filter, the overflow tank 13 can collect the liquid medicine overflowing from the electroplating tank 1 and is convenient to discharge through the overflow pipe 22, and the filter screen 20 and the filter paper 21 are used for filtering metal impurities in the liquid medicine.

Example four:

the process flow is as follows:

s1: the controller 23 controls the opening state of the electromagnetic valve 11, controls the flow and the volume of the liquid inlet pipe 12 for introducing the liquid medicine into the electroplating bath 1, and is used for controlling the input amount and the speed of the liquid medicine;

s2: the controller 23 controls the operation of the delivery pump 8, after the operation of the delivery pump 8, the electroplating liquid medicine at the bottom of the electroplating bath 1 is sucked into the delivery pump 8 through the first circulating pipe 6, when the liquid medicine enters the flowmeter 7, the flowmeter 7 detects the transmission flow and uploads the transmission flow to the controller 23, and the delivery pump 8 pumps out the liquid medicine and circularly discharges the liquid medicine into the electroplating bath 1 through the second circulating pipe 9 and the liquid discharge pipe 10;

the controller 23 regulates and controls the rotation speed of the delivery pump 8 according to the flow data uploaded by the flowmeter 7, and controls the flow of the liquid medicine in the first circulation pipe 6 to be 120L/min;

s3: the controller 23 transmits a signal to the frequency converter 14, the frequency converter 14 controls the reciprocating motor 15 to operate, the reciprocating motor 15 drives the stroke plate 2 to reciprocate through the stroke rod 18, and the frequency converter 14 controls the reciprocating frequency of the reciprocating motor 15 to be 27 HZ;

s4: the overflow tank 13 can collect the chemical solution overflowing from the electroplating tank 1, and the filter screen 20 and the filter paper 21 are used for filtering metal impurities in the chemical solution.

The working principle is as follows: after electroplating solution is added into the electroplating bath 1, an electroplating workpiece can be placed on the surface of the grid plate 3, the electroplating solution submerges the surface of the workpiece, the controller 23 can control the opening and closing of the electromagnetic valve 11, the liquid inlet pipe 12 can inject liquid medicine into the electroplating bath 1, so that the electroplating solution is mixed with the liquid medicine, the electroplating solution can dilute the liquid medicine, in the electroplating process, the liquid medicine in the electroplating bath 1 can be sucked in by the delivery pump 8 through the first circulating pipe 6, and the liquid medicine is circulated into the electroplating bath 1 through the second circulating pipe 9, so that the effective cyclic utilization of the liquid medicine is realized, the electroplating is accelerated, meanwhile, the flow meter 7 monitors the liquid medicine flow in the first circulating pipe 6 and feeds the liquid medicine back to the controller 23, and the delivery pump 8 is controlled by the controller 23 to achieve the flow rate of 120L/min;

and the controller 23 sends a signal to the frequency converter 14, and the frequency converter 14 controls the reciprocating motor 15 to operate, so that the swinging frequency of the stroke plate 2 in the electroplating bath 1 is accurately controlled, the optimal electroplating process parameters are realized, and the production of matte electroplating workpieces is facilitated.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a matte electroplating process, includes plating bath (1), stroke board (2), draw-in groove (4), first circulating pipe (6), flowmeter (7), delivery pump (8), feed liquor pipe (12), overflow launder (13), converter (14), reciprocating motor (15) and controller (23), its characterized in that: the bottom end inner wall of the electroplating bath (1) is provided with a stroke plate (2), one side of the stroke plate (2) is connected with a stroke rod (18), the outer wall of one side of the electroplating bath (1) is provided with an overflow trough (13), a frequency converter (14) and a reciprocating motor (15), the outer wall of the other side of the electroplating bath (1) is provided with a conveying pump (8), the conveying pump (8) is respectively connected with a first circulating pipe (6) and a second circulating pipe (9), the first circulating pipe (6) is provided with a flow meter (7), the upper end of the electroplating bath (1) is provided with a liquid inlet pipe (12), the liquid inlet pipe (12) is provided with an electromagnetic valve (11), and the conveying pump (8), the electromagnetic valve (11), the frequency converter (14) and the reciprocating motor (15) of the flow meter (7) are all connected with a controller (23);

the controller (23) regulates and controls the flow meter (7) to pass through the flow meter with the value of 120L/min, and the running parameter of the reciprocating motor (15) is 27 HZ.

2. The matte plating process according to claim 1, characterized in that: clamping grooves (4) are symmetrically formed in two sides of the inner wall of the bottom end of the electroplating bath (1), the stroke plate (2) is movably arranged in the clamping grooves (4), and grid plates (3) which are distributed in parallel at equal intervals are arranged on the upper surface of the stroke plate (2);

pulleys (5) are symmetrically arranged on the outer walls of two sides of the stroke plate (2), the pulleys (5) are slidably arranged in the clamping groove (4), and one end of the stroke rod (18) penetrates through the outer wall of one side of the electroplating bath (1) and is connected with a reciprocating motor (15);

the inner wall of the bottom end of one side of the electroplating bath (1) is embedded with a linear bearing (16), the stroke rod (18) is inserted in the linear bearing (16) in a sliding manner, and a sealing rubber ring (17) is connected between the outer wall of the stroke rod (18) and the inner wall of the electroplating bath (1).

3. The matte plating process according to claim 1, characterized in that: the lower end of the first circulating pipe (6) is communicated with one side of the inner wall of the bottom end of the electroplating bath (1), the upper end of the second circulating pipe (9) is communicated with the outer wall of one side of the upper end of the electroplating bath (1), and the second circulating pipe (9) is connected with liquid discharge pipes (10) which are distributed at equal intervals.

4. The matte plating process according to claim 1, characterized in that: an overflow pipe (22) is arranged on the outer wall of one side of the lower end of the overflow groove (13), and a filter screen (20) is arranged in the overflow groove (13);

the joint of the overflow pipe (22) and the overflow groove (13) is provided with filter paper (21), and the overflow pipe (22) is provided with a valve (19).

5. The matte plating process according to claim 1, characterized in that: the process flow is as follows:

s1: the controller (23) controls the opening state of the electromagnetic valve (11), and controls the flow and the volume of the liquid inlet pipe (12) for introducing the liquid medicine into the electroplating bath (1) for controlling the inflow and the speed of the liquid medicine;

s2: the controller (23) controls the conveying pump (8) to operate, electroplating liquid medicine at the bottom of the electroplating bath (1) is sucked into the conveying pump (8) through the first circulating pipe (6) after the conveying pump (8) operates, when the liquid medicine enters the flow meter (7), the flow meter (7) detects the conveying flow and uploads the conveying flow to the controller (23), and the conveying pump (8) pumps the liquid medicine out and circularly discharges the liquid medicine into the electroplating bath (1) through the second circulating pipe (9) and the liquid discharge pipe (10);

the controller (23) regulates and controls the rotating speed of the delivery pump (8) according to the flow data uploaded by the flowmeter (7), and controls the flow of the liquid medicine in the first circulating pipe (6) to be 120L/min;

s3: the controller (23) transmits a signal to the frequency converter (14), the frequency converter (14) controls the reciprocating motor (15) to operate, the reciprocating motor (15) drives the stroke plate (2) to reciprocate through the stroke rod (18), and the frequency converter (14) controls the reciprocating frequency of the reciprocating motor (15) to be 27 HZ;

s4: the overflow groove (13) can collect the liquid medicine overflowing from the electroplating bath (1), and the filter screen (20) and the filter paper (21) are used for filtering metal impurities in the liquid medicine.