Trivalent black chromium electroplating continuous operation device and method

Abstract

The invention relates to the technical field of electroplating, in particular to a trivalent black chromium electroplating continuous operation device and method.The trivalent black chromium electroplating continuous operation device comprises a supporting assembly, an electroplating assembly and a feeding assembly, the electroplating assembly comprises an electroplating anode and a power supply, the feeding assembly comprises a feeding frame, a conveying line, a plurality of discharging frames, a lifting frame and a connector, and the feeding frame is fixed to one side of an electroplating bath; the conveying line is rotationally arranged on the feeding frame, the discharging frame comprises a frame body, two springs and two sliding rods, the two springs are arranged on the two sides of the frame body, the two sliding rods are arranged on one sides of the two springs in a sliding mode respectively, the two sliding rods are supported through the conveying line, and the lifting frame is arranged above the conveying line. And the connector comprises two clamping plates, two sleeves, a control rod and a control air cylinder, so that the feeding frame can be continuously conveyed and electroplated, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of electroplating, and in particular to a trivalent black chromium electroplating continuous operation device and method. Background Art

[0002] With the rapid development of modern society and economy, cars have gradually become a necessary means of transportation for every household. In order to make cars more beautiful and practical, car accessories are usually installed inside or outside the car. In order to ensure that the car accessories are durable and beautiful, they are generally electroplated. Electroplating can be divided into two parts: hexavalent chromium and trivalent chromium. For a long time, electroplating chromium usually uses hexavalent chromium plating solution. In recent years, due to the pollution caused by hexavalent chromium to the environment and other aspects, the research on trivalent chromium electroplating has been stepped up. In fact, the research on replacing hexavalent chromium with trivalent chromium has been proposed for a long time. Compared with hexavalent chromium electroplating, decorative chromium plating with trivalent chromium has many excellent characteristics.

[0003] When electroplating is performed, the existing equipment is not convenient for continuously conveying the workpieces to be electroplated, thereby reducing the work efficiency. Summary of the invention

[0004] The object of the present invention is to provide a trivalent black chromium electroplating continuous operation device and method, aiming to continuously transport and electroplate a material discharging rack, thereby improving work efficiency.

[0005] To achieve the above-mentioned purpose, in the first aspect, the present invention provides a trivalent black chromium electroplating continuous operation device, comprising a supporting component, an electroplating component and a feeding component, wherein the supporting component comprises a base and an electroplating tank, the electroplating tank is fixedly connected to the base and is located on the top of the base, the electroplating component comprises an electroplating anode and a power supply, the electroplating anode is arranged on one side of the electroplating tank, the power supply is connected to the electroplating anode, the feeding component comprises a feeding rack, a conveyor line, a plurality of unloading racks, a lifting rack and a connecting head, the feeding rack is fixed on one side of the electroplating tank, the conveyor line is rotatably arranged on the upper On the material rack, the material rack includes a frame body, two springs and two sliding rods, the two springs are arranged on both sides of the frame body, the two sliding rods are respectively slidably arranged on one side of the two springs, the two sliding rods are supported by the conveyor line, the lifting frame is arranged above the conveyor line, the connecting head includes two clamping plates, two sleeves, a control rod and a control cylinder, the two clamping plates are rotatably arranged on the lifting frame, the two sleeves are rotatably arranged on the two clamping plates, the control rod is used to slide and control the rotation of the two clamping plates, and the output end of the control cylinder is connected to the control rod.

[0006] Wherein, the support assembly further includes an anti-skid pad, which is fixedly connected to the base and located at the bottom of the base.

[0007] The anode is a metal titanium rod, and the surface of the metal titanium rod is covered with a tantalum ruthenium iridium oxide coating.

[0008] Wherein, the conveyor line also includes a front guide plate and a rear guide plate, the front guide plate is fixed on the loading rack and located at the entrance of the line body, and the rear guide plate is fixed on the loading rack and located at the exit of the line body.

[0009] Wherein, the sliding rod has a friction portion, and the friction portion is arranged on one side of the sliding rod.

[0010] Among them, the lifting frame includes a lifting cylinder, a lifting plate and a return spring, the lifting cylinder is fixed on the top of the loading rack, the lifting plate is fixed on the output end of the lifting cylinder, and the return spring is arranged on the lifting cylinder and the lifting plate.

[0011] In a second aspect, the present invention further provides a method for using a trivalent black chromium electroplating continuous operation device, comprising: installing a part to be electroplated on the material placing rack;

[0012] Squeeze the sliding rod to place the unloading rack onto the conveying line for conveying;

[0013] When the unloading rack moves to the bottom of the lifting rack, the control cylinder is started to drive the control rod to slide, thereby driving the two clamping plates to approach to drive the two sliding rods to compress, so that the sliding rods are separated from the conveying line;

[0014] Starting the lifting frame to descend so that the parts enter the electroplating tank for electroplating;

[0015] After the electroplating is completed, the lifting frame is reset, and the sleeve is separated from the sliding rod, so that the sliding rod is placed back on the conveying line for delivery.

[0016] The present invention discloses a trivalent black chromium electroplating continuous operation device and method, wherein the support assembly is the basic structure of the entire electroplating device, and mainly includes a base and an electroplating tank. The base provides a stable support platform, and the electroplating tank is fixedly installed on the base as the main place for the electroplating reaction. The design of the electroplating tank usually needs to take into account corrosion resistance and conductivity, so as to facilitate the storage of the electroplating solution and the conduction of the current. The electroplating assembly includes an electroplating anode and a power supply. The electroplating anode is placed on one side of the electroplating tank, and serves as the positive electrode in the electroplating process. Its material is usually the same metal or alloy as the required coating. The power supply is responsible for providing the required current to the electroplating anode to ensure the smooth progress of the electroplating process. The feeding assembly is a key part that ensures that the workpiece can continuously and orderly enter the electroplating tank for processing. Each unloading rack is composed of a rack body, two springs and two sliding rods. The function of the spring is to provide a certain elastic force so that the sliding rod can be displaced when subjected to an external force, so as to detach from the conveyor line and be able to perform electroplating. The sliding rod is supported by the conveyor line to ensure that the workpiece can move smoothly on the conveyor line. When the unloading rack moves to the bottom of the lifting rack, the control cylinder can be started to drive the control rod to slide down, thereby driving the two clamps to approach, so that the two sleeves are mounted on the sliding rod and continuously compress the sliding rod, so that the sliding rod can be detached from the conveyor line, and then the lifting rack is moved downward so that the unloading rack can enter the electroplating tank for electroplating. After the electroplating is completed, the lifting rack and the connecting head are reset and the unloading rack can be placed on the conveyor line again for continued transportation, so that the unloading rack can be continuously transported and electroplated, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural diagram of a trivalent black chromium electroplating continuous operation device according to the first embodiment of the present invention.

[0019] Figure 2 It is a right side structural diagram of a trivalent black chromium electroplating continuous operation device according to the first embodiment of the present invention.

[0020] Figure 3 It is a cross-sectional structural diagram of a trivalent black chromium electroplating continuous operation device according to the first embodiment of the present invention.

[0021] Figure 4 yes Figure 3 A partial enlargement of detail B.

[0022] Figure 5 It is a second cross-sectional structural diagram of a trivalent black chromium electroplating continuous operation device according to the first embodiment of the present invention.

[0023] Figure 6 yes Figure 5 A partial enlargement of detail A.

[0024] Figure 7 It is a flow chart of a method for using a trivalent black chromium electroplating continuous operation device according to the first embodiment of the present invention.

[0025] Support assembly 101, electroplating assembly 102, loading assembly 103, base 104, electroplating tank 105, electroplating anode 106, power supply 107, loading rack 108, conveyor line 109, unloading rack 110, lifting rack 111, connector 112, frame 113, spring 114, sliding rod 115, clamping plate 116, sleeve 117, control rod 118, control cylinder 119, anti-slip pad 120, front guide plate 121, rear guide plate 122, friction part 123, lifting cylinder 124, lifting plate 125, return spring 126, limit plate 127, photoelectric sensor 128, controller 129. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0028] First embodiment

[0029] See also Figure 1 to Figure 6The present invention provides a trivalent black chromium electroplating continuous operation device, comprising a supporting component 101, an electroplating component 102 and a feeding component 103, wherein the supporting component 101 comprises a base 104 and an electroplating tank 105, wherein the electroplating tank 105 is fixedly connected to the base 104 and is located on the top of the base 104, wherein the electroplating component 102 comprises an electroplating anode 106 and a power supply 107, wherein the electroplating anode 106 is arranged at one side of the electroplating tank 105, wherein the power supply 107 is connected to the electroplating anode 106, wherein the feeding component 103 comprises a feeding rack 108, a conveying line 109, a plurality of unloading racks 110, a lifting rack 111 and a connecting head 112, wherein the feeding rack 108 is fixed at one side of the electroplating tank 105, wherein the conveying line 109 is rotatably arranged on the feeding rack 108, wherein the feeding rack 108 is fixedly connected to ... The material unloading rack 110 includes a frame body 113, two springs 114 and two sliding rods 115. The two springs 114 are arranged on both sides of the frame body 113. The two sliding rods 115 are respectively slidably arranged on one side of the two springs 114. The two sliding rods 115 are supported by the conveyor line 109. The lifting frame 111 is arranged above the conveyor line 109. The connecting head 112 includes two clamping plates 116, two sleeves 117, a control rod 118 and a control cylinder 119. The two clamping plates 116 are rotatably arranged on the lifting frame 111. The two sleeves 117 are rotatably arranged on the two clamping plates 116. The control rod 118 is used for slidingly controlling the rotation of the two clamping plates 116. The output end of the control cylinder 119 is connected to the control rod 118.

[0030] In this embodiment, the support assembly 101 is the basic structure of the entire electroplating device, mainly including a base 104 and an electroplating tank 105. The base 104 provides a stable support platform, and the electroplating tank 105 is fixedly installed on the base 104 as the main place for the electroplating reaction. The design of the electroplating tank 105 usually needs to take into account corrosion resistance and conductivity, so as to facilitate the storage of the electroplating solution and the conduction of the current. The electroplating assembly 102 includes an electroplating anode 106 and a power supply 107. The electroplating anode 106 is placed on one side of the electroplating tank 105, as the positive electrode in the electroplating process, and its material is usually the same metal or alloy as the required coating. The power supply 107 is responsible for providing the required current to the electroplating anode 106 to ensure the smooth progress of the electroplating process. The loading assembly 103 is a key part that ensures that the workpiece can continuously and orderly enter the electroplating tank 105 for processing. Each unloading rack 110 is composed of a rack body 113, two springs 114 and two sliding rods 115. The function of the spring 114 is to provide a certain elastic force so that the sliding rod 115 can be displaced when subjected to an external force, so as to be separated from the conveyor line 109 and electroplating can be performed. The sliding rod 115 is supported by the conveyor line 109 to ensure that the workpiece can move smoothly on the conveyor line 109. When the unloading rack 110 moves to the bottom of the lifting rack 111, the control cylinder 119 can be started to drive the control rod 118 to slide down, thereby driving the two clamps 116 to approach each other, so that the two sleeves 117 are sleeved on the sliding rod 115 and continuously compress the sliding rod 115, so that the sliding rod 115 can be detached from the conveyor line 109, and then the lifting rack 111 is moved downward so that the unloading rack 110 can enter the electroplating tank 105 for electroplating. After the electroplating is completed, the lifting rack 111 and the connecting head 112 are reset, and the unloading rack 110 can be placed on the conveyor line 109 again for continued transportation, so that the unloading rack 110 can be continuously transported and electroplated, thereby improving work efficiency.

[0031] The support assembly 101 further includes an anti-skid pad 120 , which is fixedly connected to the base 104 and located at the bottom of the base 104 .

[0032] The anti-slip pad 120 is fixedly connected to the base 104 and is located at the bottom of the base 104. Its presence can increase the friction between the device and the ground, preventing the device from being displaced due to vibration or other external forces during operation, thereby improving the stability of the entire electroplating device.

[0033] The anode is a metal titanium rod, and a tantalum-ruthenium-iridium oxide coating is covered on the surface of the metal titanium rod.

[0034] The anode plating uses a titanium rod as the base material, which not only has good corrosion resistance, but also can withstand the high temperature and strong current generated during the electroplating process. More importantly, the surface of the titanium rod is covered with a layer of tantalum, ruthenium and iridium oxide coating, which can significantly improve the conductivity and stability of the anode, extend its service life, and reduce harmful substances generated during the electroplating process, meeting environmental protection requirements.

[0035] Conventional hydrochloric acid trivalent chromium uses graphite with titanium hooks as anode, which has deformation, instability and other unfavorable factors. The sulfuric acid trivalent chromium anode of this project uses a metal titanium rod, and forms a tantalum, ruthenium and iridium oxide coating on its surface. It has better stability and stronger conductivity than ordinary sulfuric acid titanium rod anode and hydrochloric acid trivalent chromium. The anode reaction only generates oxygen inert anode, which has a long service life. The coating is microporous, and the coating contains only chromium metal, which has better protection performance, while the non-hydrochloric acid type chromium iron, the iron particles are oxidized, resulting in insufficient product performance.

[0036] In addition, a tantalum, ruthenium, and iridium oxide coating is added to the surface of the anode titanium rod to make the anode more stable, which can improve production efficiency and stability. The pH of the bath solution remains stable during the electroplating process, and no tedious adjustments are required, which improves production efficiency. Compared with all other trivalent chromium systems, it has the best anti-corrosion ability, avoiding later market complaints and saving later maintenance costs.

[0037] The conveyor line 109 further includes a front guide plate 121 and a rear guide plate 122. The front guide plate 121 is fixed on the loading rack 108 and is located at the entrance of the line body. The rear guide plate 122 is fixed on the loading rack 108 and is located at the exit of the line body.

[0038] The function of these two guide plates is to guide the unloading rack 110 to correctly enter and exit the conveyor line 109, so as to avoid the workpiece from being offset or stuck during transportation, thereby ensuring a smooth electroplating process.

[0039] The sliding rod 115 has a friction portion 123 , and the friction portion 123 is disposed on one side of the sliding rod 115 .

[0040] This portion is designed to increase the friction between the sliding rod 115 and the workpiece, prevent the workpiece from slipping during the sliding process, and ensure stable movement of the workpiece on the conveyor line 109.

[0041] The lifting frame 111 includes a lifting cylinder 124, a lifting plate 125 and a return spring 126. The lifting cylinder 124 is fixed on the top of the loading frame 108, the lifting plate 125 is fixed on the output end of the lifting cylinder 124, and the return spring 126 is arranged on the lifting cylinder 124 and the lifting plate 125.

[0042] The lifting cylinder 124 is fixed on the top of the loading rack 108, and its output end is connected to the lifting plate 125. When the height of the workpiece needs to be adjusted, the lifting cylinder 124 will push the lifting plate 125 up and down according to the command. The return spring 126 is installed between the lifting cylinder 124 and the lifting plate 125. When the cylinder stops working, the return spring 126 can help the lifting plate 125 quickly return to the initial position.

[0043] The connector 112 further includes a limiting plate 127 , which is fixed on the lifting plate 125 and located on one side of the clamping plate 116 .

[0044] The limiting plate 127 is fixed on the lifting plate 125 and is located on one side of the clamping plate 116 . Its function is to limit the movement range of the unloading rack 110 to prevent it from shaking back and forth and affecting other unloading racks 110 .

[0045] The connecting head 112 also includes a photoelectric sensor 128 and a controller 129. The photoelectric sensor 128 is arranged on one side of the limit plate 127 to detect the position of the material placing rack 110. The controller 129 is used to control the movement of the control cylinder 119 based on the position of the material placing rack 110.

[0046] The photoelectric sensor 128 is installed on one side of the limit plate 127, and can monitor the position information of the unloading rack 110 in real time. The controller 129 automatically adjusts the action of the control cylinder 119 based on the data fed back by the photoelectric sensor 128, thereby realizing the precise positioning and clamping operation of the workpiece, improving the degree of automation and production efficiency.

[0047] Second embodiment

[0048] See also Figure 7 The present invention also provides a method for using a trivalent black chromium electroplating continuous operation device, comprising:

[0049] S201: Install the parts to be electroplated on the unloading rack 110;

[0050] The operator needs to place the parts to be electroplated on the unloading rack 110 in a prescribed manner. The design of the unloading rack 110 usually takes into account the shape and size of the parts, so it is necessary to ensure that the parts are firmly placed on the rack 113 to avoid slipping or deviation during the subsequent conveying process.

[0051] S202 squeezes the sliding rod 115 to place the unloading rack 110 on the conveying line 109 for conveying;

[0052] Once the parts are securely mounted on the unloading rack 110, the operator needs to squeeze the sliding rod 115 manually or by a mechanical arm so that the unloading rack 110 can be smoothly placed on the conveyor line 109. At this time, the sliding rod 115 on the unloading rack 110 will be supported by the conveyor line 109 and start to move forward as the conveyor line 109 runs.

[0053] S203 When the unloading rack 110 moves to the bottom of the lifting rack 111, the control cylinder 119 is started to drive the control rod 118 to slide, thereby driving the two clamping plates 116 to approach to drive the two sliding rods 115 to compress, so that the sliding rods 115 are separated from the conveying line 109;

[0054] When the unloading rack 110 reaches the predetermined position, that is, below the lifting rack 111, the control system will start the control cylinder 119. The control cylinder 119 pushes the control rod 118, so that the two clamping plates 116 move inward, thereby driving the sliding rod 115 to compress toward the center. With the compression of the sliding rod 115, the unloading rack 110 is no longer supported by the conveyor line 109 and is ready to enter the next process.

[0055] S204 starts the lifting frame 111 to descend, so that the parts enter the electroplating tank 105 for electroplating;

[0056] After the unloading rack 110 is clamped and separated from the conveyor line 109, the lifting rack 111 begins to descend. Since the lifting rack 111 is equipped with a lifting cylinder 124, it can accurately control the speed and position of the descent, ensuring that the parts can smoothly enter the electroplating tank 105 to start the electroplating process. During this period, the trivalent chromium solution in the electroplating tank 105 will perform a uniform electroplating treatment on the surface of the parts.

[0057] After the electroplating is completed in S205, the lifting frame 111 is reset, and the sleeve 117 is separated from the sliding rod 115, so that the sliding rod 115 is placed back on the conveying line 109 for delivery.

[0058] When the electroplating process is finished, the control system will send a signal to the lifting cylinder 124, so that it drives the lifting frame 111 to rise to the initial position. At the same time, the control cylinder 119 will also work in the reverse direction, so that the clamping plate 116 opens, the sliding rod 115 returns to its original state, and is supported by the conveyor line 109 again. Subsequently, the unloading rack 110 and the parts that have been electroplated are sent out of the electroplating area by the conveyor line 109 to enter the next processing link or directly to the finished product area.

[0059] What is disclosed above is only a preferred embodiment of the present invention, and it certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. A trivalent black chromium electroplating continuous operation device, characterized in that: It includes a supporting component, an electroplating component and a feeding component, wherein the supporting component includes a base and an electroplating tank, the electroplating tank is fixedly connected to the base and is located on the top of the base, the electroplating component includes an electroplating anode and a power supply, the electroplating anode is arranged on one side of the electroplating tank, and the power supply is connected to the electroplating anode, the feeding component includes a feeding rack, a conveyor line, a plurality of unloading racks, a lifting rack and a connecting head, the feeding rack is fixed to one side of the electroplating tank, the conveyor line is rotatably arranged on the feeding rack, the unloading rack includes a frame body, two springs and two sliding rods, the two springs are arranged on both sides of the frame body, the two sliding rods are respectively slidably arranged on one side of the two springs, the two sliding rods are supported by the conveyor line, the lifting rack is arranged above the conveyor line, the connecting head includes two clamping plates, two sleeves, a control rod and a control cylinder, the two clamping plates are rotatably arranged on the lifting rack, the two sleeves are rotatably arranged on the two clamping plates, the control rod is used to slide and control the rotation of the two clamping plates, and the output end of the control cylinder is connected to the control rod.

2. A trivalent black chromium electroplating continuous operation device as claimed in claim 1, characterized in that: The support assembly also includes an anti-skid pad, which is fixedly connected to the base and located at the bottom of the base.

3. A trivalent black chromium electroplating continuous operation device as claimed in claim 2, characterized in that: The anode is a metal titanium rod, and a tantalum-ruthenium-iridium oxide coating is covered on the surface of the metal titanium rod.

4. A trivalent black chromium electroplating continuous operation device as claimed in claim 3, characterized in that: The conveyor line includes a line body and a driving roller. The driving roller is rotatably arranged on the loading rack, and the line body is rotatably arranged on the driving roller.

5. A trivalent black chromium electroplating continuous operation device as claimed in claim 4, characterized in that: The conveyor line also includes a front guide plate and a rear guide plate. The front guide plate is fixed on the loading rack and located at the entrance of the line body, and the rear guide plate is fixed on the loading rack and located at the exit of the line body.

6. A trivalent black chromium electroplating continuous operation device as claimed in claim 5, characterized in that: The sliding rod has a friction portion, and the friction portion is arranged on one side of the sliding rod.

7. A trivalent black chromium electroplating continuous operation device as claimed in claim 6, characterized in that: The lifting frame includes a lifting cylinder, a lifting plate and a return spring. The lifting cylinder is fixed on the top of the loading frame, the lifting plate is fixed on the output end of the lifting cylinder, and the return spring is arranged on the lifting cylinder and the lifting plate.

8. A method for using a trivalent black chromium electroplating continuous operation device, applied to a trivalent black chromium electroplating continuous operation device according to any one of claims 1 to 7, It is characterized in that The method comprises: installing the parts to be electroplated on the material placing rack; Squeeze the sliding rod to place the unloading rack on the conveying line for conveying; When the unloading rack moves to the bottom of the lifting rack, the control cylinder is started to drive the control rod to slide, thereby driving the two clamping plates to approach to drive the two sliding rods to compress, so that the sliding rods are separated from the conveying line; Starting the lifting frame to descend so that the parts enter the electroplating tank for electroplating; After the electroplating is completed, the lifting frame is reset, and the sleeve is separated from the sliding rod, so that the sliding rod is placed back on the conveying line for delivery.

Images