KR100973550B1 - Automatic equipment for nickel and chrome plating of pipe - Google Patents

Abstract

The present invention provides a nickel chromium plating apparatus of a steel pipe in which a plurality of baths are arranged in a row for performing a pretreatment step and a plating step for nickel chromium plating of a steel pipe, and enables a multi-stage continuous process while injecting a steel pipe into a facility side. A fixed jig is provided, the PLC control unit for performing the PLC control, the skeleton frame is installed on the array of the tub connected to the vertical frame and the horizontal frame, the drive shaft is located on the upper left and right of the skeleton frame and rotated by a motor An elevating movable rotary shaft coupled to each bevel gear coupled to the left and right ends of the elevating movable shaft, which is located inside the skeletal frame but positioned on the upper side of the tub and is disposed on the left and right of the working direction, and the elevating movable rotary shaft It is coupled to the sprocket integrally provided on the upper end, one end is connected to the weight, and the other end is connected to the lifting frame. The lifting guide chain, which is provided in a closed loop form inside the lifting frame, is circulated and is rotatably coupled through a sprocket on a drive shaft connected to the motor, coupled to the rotating chain in a work progress direction. Disclosed is a technical configuration including a plurality of hangers arranged at regular intervals and arranged horizontally.

Steel pipe, nickel chrome plating, PLC control, fixed jig, same working time, simultaneous movement

Description

AUTOMATIC EQUIPMENT FOR NICKEL AND CHROME PLATING OF PIPE}

The present invention relates to a nickel chromium automatic plating device for steel pipes, and more particularly, to perform PLC control for efficient operation of equipment, to process all work steps for plating at the same time, and to move to each step as a whole. The entire process of pre-treatment and plating steps can be transferred to the next step at a time, eliminating the existing waiting time, enabling rapid work of plating, increasing productivity, and initial installation cost of automatic plating equipment. And it relates to a nickel chromium automatic plating apparatus of a steel pipe to reduce the operating cost.

In general, steel pipe (steel pipe) has a problem that corrosion is good as an iron product, the steel pipe is subjected to nickel and chromium plating to solve the problem of corrosion when producing a product and to improve durability and gloss.

At this time, nickel plating is to give corrosion resistance and gloss to the steel pipe, chromium plating is carried out to give a beautiful appearance as well as preventing discoloration in the air and improved corrosion resistance to acid.

Nickel chromium plating process of steel pipe according to the prior art is divided into a pretreatment step and plating step, the pretreatment step is a positive electrolytic degreasing step → a negative electrolytic degreasing step → a first washing step → a second washing step → a pickling step → a third washing step → the fourth washing step is performed, and then the plating step includes a polishing nickel plating step → a first washing step → a second washing step → a chrome plating step → a third washing step → a fourth washing step.

In addition, the conventional plating apparatus for performing the nickel chromium plating process of the steel pipe is provided with a corresponding number of bath tubs for each step, while moving the plated object (steel pipe) to each step position to move each position Three mobile trolleys are provided for carrying out the work of the stage.

In other words, the polished nickel plating step should be kept in the nickel plating bath for 6 to 10 minutes at any time, in order to plate the polished nickel to a certain thickness on the steel pipe to be plated, and the remaining steps should be treated within 3 minutes. As a work that can be performed, the first bogie for performing the pretreatment step, the second bogie for carrying out the nickel plating operation to the second washing operation in the plating step, and the third bogie for performing the chrome plating operation to the fourth washing operation A trolley is provided, and the first to third trolleys have a configuration in which a hanger for catching a rack in which a plurality of steel pipes are arranged is caught and moved to each step.

That is, in the related art, all work processes cannot be continuously processed at the same time and are subject to time constraints due to the plating work steps having time differences. There were many difficulties to operate with one truck for the processing conditions, current density, and plating efficiency at each stage, and there was no attempt to overcome the difficulties, and there was no development research at all. have.

As a result, the initial installation cost of the equipment is excessive, the operation of the equipment is complicated, as well as the waiting time before the work for performing each step, as well as the waiting time is long, so that the productivity is not high while promoting the automation.

In addition, the plating equipment for plating the conventional steel pipe is always in the state that the power is applied to each step of the bathtub provided to perform each step, the rack controlled by the signal of the sensor is a rack with a large number of steel pipes arranged in their own hanger After carrying out the work to be settled in each bath after moving, there was a problem that unnecessarily consumes a lot of power and the operation cost of the equipment is also excessive.

The present invention has been made in order to solve the above-mentioned conventional problems, it is possible to perform all the work steps for plating at the same time and to process the movement to each step at the same time to complete the entire process of the pre-treatment step and plating step By moving to the next process at a time, it eliminates the waiting time caused by the difference of working time during the conventional plating work, enables the rapid work of plating, and improves productivity, as well as automation efficiency and plating efficiency. The purpose of the present invention is to provide a nickel chromium automatic plating apparatus of a steel pipe to increase the pressure.

In addition, the present invention is to control the PLC for efficient operation of the equipment and to reduce the unnecessary power consumption, such as turning off the power applied to each bath in the moving time, ON only during the working time, and the initial installation cost and automatic plating equipment The purpose is to provide a nickel chromium automatic plating device for a steel pipe to reduce operating costs.

The present invention provides a nickel chromium plating apparatus of a steel pipe in which a plurality of baths are arranged in a row for performing a pretreatment step and a plating step for nickel chromium plating of a steel pipe,

Fixing jig is provided to enable the continuous operation of the multi-stage for plating while injecting the steel pipe to the equipment side, PLC control unit for performing the PLC control, and installed on the array of the bath tub vertical and horizontal frame Is connected to the frame and frame structure, the lifting frame and the rotating shaft coupled to each bevel gear is coupled to each bevel gear coupled to the left and right ends of the drive shaft rotated by a motor and positioned inside the skeleton frame, Lifting guide chain which is located on the upper side of the bathtub and is disposed on the left and right in the working progress direction, coupled to the sprocket integrally provided on the lifting and moving rotation shaft, one end is connected to the weight and the other end is connected to the lifting frame And, in the inside of the lifting frame is provided in a closed loop form is circulated and the soup on the drive shaft connected to the motor It is bonded to the whole of the combined so as to be rotatable through a rotation chain and kit, the time interval in the predetermined arrangement direction, and work progress is characterized in the configuration including a plurality of hook bars are arranged horizontally.

The present invention enables the efficient operation of the equipment by applying the PLC control, and can perform all the work steps for plating sequentially in sequence, but can be processed at the same time in each bath arranged in a row and a multi-stage continuous process As it processes the movement of each step as a whole at the same time, it transfers the whole process of the pretreatment step and the plating step to the next one at a time, so that the plating work can be performed quickly and the step processing and simultaneous movement at the same time This minimizes the waiting time and the use of the balance and can significantly increase productivity.

In addition, the present invention can reduce the unnecessary power consumption and increase the automation efficiency, such as to reduce the initial installation cost and operating cost of the automatic plating apparatus, and enables the production of high-quality products by improving the plating efficiency.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 to 7, the nickel chromium automatic plating apparatus of the steel pipe according to the embodiment of the present invention is a fixed jig that enables to perform a multi-stage continuous process for plating while putting the steel pipe (1) to the installation side ( 110, a pretreatment step for nickel chromium plating of the steel pipe (1) and a plurality of tubs 101 for performing the plating step is arranged in a line, PLC control unit for performing PLC (Programmable Logic Control) control 120 and the skeleton frame 130 is installed on the arrangement of the tub 101 and composed of a connection configuration of the vertical frame 131 and the horizontal frame 132, and positioned on the upper left and right sides of the skeleton frame 130 And lifting and lowering rotary shafts 141 and 142 coupled to bevel gears 103 coupled to the left and right ends of the driving shaft 102 rotated by the motor M1 and driven to rotate, respectively, of the skeletal frame 130. Located on the inside but located on the upper side of the tub 101 and work in progress It is coupled to the lifting frame 151, 152 disposed in the right and left, and the sprocket (S1) integrally provided on the lifting movement shaft 141, 142, one end is connected to the weight 105 and the other end The elevating guide chain 160 connected to the elevating frame 151 and 152, and is provided in a closed loop form on the inner side of the elevating frame 151, 152 and circulated to the motor M2. Rotating chain 170 coupled to the rotatable through the sprocket (S2) on the connected drive shaft 104, and a plurality of horizontally arranged and spaced at a predetermined interval in the working progress direction coupled to the rotation chain (170) It consists of a configuration including a hanger bar (180).

In addition, it is preferable to further include a drying unit 190 for drying treatment after the completion of the plating operation of the steel pipe (1), the drying unit 190 is a drying chamber 191, the hot air in the drying chamber 191 A hot air fan 192 for supplying the gas, a moving rail 193 forming a circular moving trajectory via the drying chamber 191, and a plurality of ring members coupled to and circulated in a track of the moving rail 193 ( 194).

As shown in FIG. 2, the fixing jig 110 extends to the lower side of the hook portion 111 and the hook portion 111 to be hooked to the hook bar 180, and is integrally formed to insert and fix the steel pipe 1. It consists of a plurality of fixing pins 112 formed in a bent structure.

The bath 101 is a bath for each step to perform a pre-treatment step consisting of a positive electrolytic degreasing step → a negative electrolytic degreasing step → a first washing step → a second washing step → a pickling step → a third washing step → a fourth washing step And matte nickel plating stage → polished nickel plating stage → first washing stage → second washing stage → chrome plating stage → third washing stage → fourth washing stage do.

Here, the present invention intends to perform a continuous process in which all steps implement the same work time and the simultaneous movement to the next step for the automation efficiency, and configure the PLC control unit 120 as well as the conventional polished nickel plating step. Consists of a matte nickel plating and a polished nickel plating, and to control the composition and current conditions of the plating solution so that the particles of the matte nickel penetrates through the matte nickel particles to solve the surface tension failure due to the diversification of nickel plating I would have to.

The PLC control unit 120 controls the lifting of the lifting frame 151, 152 by controlling the lifting movement rotating shaft 141, 142 through the drive control of the motor M1, the drive of the motor M2 By controlling the rotation of the rotation chain 170 through the control to control the hanger bar 180 is moved to the position on the corresponding tub 101 for each step, except for the actual time to move the position to the respective tub 101 Power is supplied only during working hours, enabling automatic adjustment and precise control over time.

The weight 105 is preferably positioned in the vertical frame 131 of the skeleton frame (130).

Referring to the operation of the nickel chromium automatic plating apparatus of the steel pipe according to the present invention having such a configuration as follows.

First, the PLC controller 120 performs the same time based on 3 minutes for each process of the pretreatment step and the plating step, and then program the processing so that the entire movement can be performed simultaneously when moving to the next step in sequence, and simultaneous movement of movements. It is processed to supply power to each bath 101 only while each process of the pretreatment step and the plating step except for time is actually executed.

When the facility is operated, the hanger bar 180 by raising and lowering the lifting frame 151, 152 and driving the rotating chain 170 thereafter based on three minutes for the same time treatment of the pre-treatment step and the plating step. The horizontal position movement and the descending movement of the lifting frame (151, 152) is sequentially performed while repeating, and during the lowering operation of the lifting frame (151, 152), each process of the pre-processing step and the plating step It is in a state of being simultaneously executed in the corresponding bath 101.

Looking in more detail, the plated steel pipe (1) is inserted and fixed to the fixing pin 112 of the fixing jig 110, the equipment is in a fixed down state for input into the equipment of the steel pipe (1). The steel pipe 1 is introduced into the facility by placing the hook portion 111 of the fixing jig 110 on the empty hanger bar 180 located at the start point of the facility.

At this time, when the steel pipe 1 is pre-injected to the hanger bar 180, the steel pipe 1 is in a dipping state in the washing liquid or plating liquid inherent in the tub 101 at the corresponding position. The processing is done according to.

In addition, the steel pipe 1 fixedly disposed at the hook bar 180 at the starting point of the facility and introduced into the facility is operated by the motor M1 according to a control signal from the PLC control unit 120 to move the lift shaft 141 ( 142 is rotated and the elevating guide chain 160 is pulled upward, thereby elevating the elevating frame 151 and 152, thereby increasing the same, and then the rotating chain 170 driven by the motor M2. By moving the control of the rotation of the position is moved to the position above the corresponding bath 101 arranged in the plating progress direction for the continuous process processing, and driving the motor (M1) again to move the lifting shaft (141, 142) On the contrary, the lifting guide chain 160 is pulled downward by the rotation, and a plurality of fixed jigs 110 are fixedly arranged on the hook bar 180 side by the lowering of the lifting frame 151 and 152. The steel pipe (1) is dipped into the tub 101 at the corresponding position, so that the ball To be treated is achieved.

That is, while the operation of the equipment is repeatedly executed at the same time continuously according to the control signal of the PLC controller 120, while automatically moving each step of the pre-treatment step and the plating step for the nickel plating treatment of the steel pipe (1) sequentially The process is performed continuously, and each process is processed at the same time and the entire position movement to the next process is performed at the same time. This is to transfer the entire process of the pretreatment and plating steps to the next process at once. This increases the speed of processing and productivity.

In addition, the present invention is the plating step of the steel pipe (1) which is automatically processed continuously from the positive electrode electrolytic degreasing step of the pretreatment step to the matting nickel plating step and the polished nickel plating step of the plating step to the fourth washing step by the plating equipment is finished. When the fixing jig 110 is separated from the hanger bar 180 at the end of the facility, the separated fixing jig 110 is placed on the hook member 194 of the drying unit 190 and placed in the steel pipe (1). The automatic drying process is carried out via the drying chamber 191 to which hot air is supplied while moving on the moving rail 193.

Therefore, the present invention can improve the sequential and continuous plating treatment of the steel pipe 1 more efficiently and can continuously process without waiting time, and can also immediately dry the plated steel pipe to increase automation efficiency and productivity. Will be.

In addition, the present invention supplies power to each bath 101 at the time of dripping the steel pipe (1), which is a plated object for plating, in total in a continuous process of multiple stages, and dipping from each bath 101. In the operation of removing the steel pipe 1 and moving the position, the power pipe can be controlled to cut off the power supplied to the tub 101, thereby reducing the power consumption and reducing the initial installation cost and operating cost of the automatic plating apparatus.

On the other hand, in the present invention, the nickel plating process is divided into matt and gloss in order to implement the same time processing and overall simultaneous movement in each step 101 in the automated operation for nickel chromium plating of the steel pipe (1) It is applied to a method that is carried out over a number of times, and in order to solve the adhesion failure caused by the surface tension of each other due to the diversification of the plating step, the composition of the plating solution is applied as well as the operating conditions such as voltage and current density. Glossy nickel particles are extracted as finer particles than matt nickel particles extracted at, thereby allowing plated by infiltrating fine particles that are finely extracted between the matte nickel particles during the matte nickel plating step after the matte nickel plating step. Due to the diversification of plating, it is possible to solve the poor adhesion by the surface tension of each other. Compared to the well to be able to increase the efficiency of the nickel plating, but allows for efficient system configuration for the automatic coating apparatus of the present invention.

1 is a schematic overall configuration diagram showing a nickel chromium automatic plating apparatus of a steel pipe according to the present invention.

Figure 2 is a side view showing the nickel chromium automatic plating apparatus of the steel pipe according to the present invention.

Figure 3 is a front view showing the nickel chromium automatic plating apparatus of the steel pipe according to the present invention.

Figure 4 and Figure 5 is a perspective view of the main part showing the nickel chromium automatic plating apparatus of the steel pipe according to the present invention.

Figure 6 is a perspective view showing a drying unit in the automatic plating apparatus of the present invention.

7 is a perspective view showing a fixing jig in the present invention.

Explanation of symbols on the main parts of the drawings

101: bathtub 102, 104: drive shaft

103: Bevel Gear 105: Weight

110: fixed jig 120: PLC control unit

130: skeletal frame 141,142: lifting and moving shaft

151,152 lifting frame 160: lifting guide chain

170: rotating chain 180: hook bar

190: drying unit

M1, M2: Motor S1, S2: Sprocket

Claims (3)

In the nickel chromium plating apparatus of a steel pipe, in which a plurality of tubs 101 are arranged in a row for performing a pretreatment step and a plating step for nickel chromium plating of the steel pipe 1, Fixing jig 110 to enable the multi-stage continuous process for plating while the steel pipe (1) is put into the facility side; A PLC controller 120 for performing PLC control; Skeletal frame 130 is installed on the array of the bath 101 and connected to the vertical frame 131 and the horizontal frame 132; The lifting movement rotating shaft 141 which is positioned at the upper left and right sides of the skeletal frame 130 and coupled to each bevel gear 103 coupled to the left and right ends of the driving shaft 102 that is rotated by the motor M1 and is driven to rotate. 142); A lifting frame (151) (152) located inside the skeletal frame (130) but positioned above the tub (101) and disposed at the left and right in the working progress direction; The elevating guide chain coupled to the sprocket S1 integrally provided on the elevating moving shafts 141 and 142 and having one end connected to the weight 105 and the other end connected to the elevating frame 151 and 152. 160); Rotating chain 170 is provided in a closed loop form inside the lifting frame 151, 152 and circulated and rotatably coupled via a sprocket S2 on a drive shaft 104 connected to the motor M2. ; A plurality of hook bars 180 coupled to the rotating chain 170 and arranged at a predetermined interval in a working direction and arranged horizontally; And On the track of the drying chamber 191, the hot air fan 192 for supplying hot air to the drying chamber 191, the moving rail 193 for forming a circulating movement trajectory via the drying chamber 191, and the moving rail 193 Drying unit 190 consisting of a plurality of ring members 194 coupled and circulated; Nickel chromium automatic plating apparatus of a steel pipe comprising a. delete The method of claim 1, The fixing jig 110 is a hook portion 111 for hanging on the hook bar 180 and extended to the lower side of the hook portion 111 is integrally formed and bent structure for insertion fixing of the steel pipe (1) Nickel chrome automatic plating device of a steel pipe, characterized in that consisting of a plurality of fixing pins 112 formed by.

Images