Automatic passivation device for galvanized workpiece and working method

Abstract

The invention relates to a galvanized workpiece automatic passivation device and a working method, the galvanized workpiece automatic passivation device comprises a pool body, a plurality of grooves are arranged in the pool body, one of the grooves is a passivation groove, and at least one groove is arranged behind the passivation groove to serve as a cleaning groove, the galvanized workpiece automatic passivation device is characterized in that workpiece hoppers with top openings are arranged in the passivation groove and the cleaning groove; the bottom wall and / or at least one side wall of the workpiece hopper are / is of a mesh structure, a vibration element is arranged at the bottom of the workpiece hopper, the edge of the discharging side of the open end of the top of the workpiece hopper is rotationally connected with the pool body through a rotating shaft arranged on the upper surface of the pool body, and the workpiece hopper is connected with an overturning driving mechanism arranged on the pool body. And the overturning driving mechanism can drive the workpiece hopper to overturn so as to pour the workpiece in the workpiece hopper into the workpiece hopper in the rear groove. By adopting the automatic passivation device disclosed by the invention, the working efficiency is improved, and the labor intensity is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of passivation equipment, and in particular to an automatic passivation device for a galvanized workpiece and a working method. Background Art

[0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.

[0003] At present, the passivation equipment of black zinc and color zinc in the electroplating frame hanging plating line has problems such as high labor intensity, high action level, low process efficiency and low equipment automation. For example, patent application CN116445900A discloses a non-emission environmentally friendly passivation equipment, including a passivation tank, a clean water rinsing tank, a circulation system and an audible and visual alarm. Two clean water rinsing tanks are arranged on one side of the passivation tank. The passivation tank and the clean water rinsing tank are both connected to the two circulation systems. The circulation system is provided with an audible and visual alarm. When the above equipment is used, employees are required to manually carry a cage full of workpieces and soak them in the clean water rinsing tank or the passivation tank. The transfer of workpieces between the clean water rinsing tank and the passivation tank also needs to be done manually, which not only increases the physical burden of employees, but also may lead to a decrease in work efficiency. The entire passivation process requires employees to perform multiple repeated actions, which increases the complexity of the operation and the possibility of errors, and also poses a potential threat to the health of employees. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an automatic passivation device and working method for galvanized workpieces, which eliminates the need for manual work by employees, improves work efficiency and reduces labor intensity.

[0005] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0006] In a first aspect, an embodiment of the present invention provides an automatic passivation device for galvanized workpieces, comprising a tank body, wherein a plurality of slots are arranged in the tank body, wherein one slot is a passivation slot, and at least one slot is arranged behind the passivation slot as a cleaning slot, wherein the passivation slot and the cleaning slot are both provided with a workpiece hopper with an open top, and the bottom wall and / or at least one side wall of the workpiece hopper is a mesh structure, wherein a vibration element is arranged at the bottom of the workpiece hopper, and the discharge side edge of the top open end of the workpiece hopper is rotatably connected to the tank body through a rotating shaft arranged on the upper surface of the tank body, and the workpiece hopper is connected to a turning drive mechanism arranged on the tank body;

[0007] The overturning driving mechanism can drive the workpiece hopper to overturn so as to pour the workpieces in the workpiece hopper into the workpiece hopper in the rear groove.

[0008] Optionally, the flipping drive mechanism includes a telescopic drive member, one end of the telescopic drive member is hinged to a hinge seat arranged on the outer side of the side wall of the pool body, and the other end is rotatably connected to a drive shaft arranged above the workpiece hopper. The drive shaft is fixedly connected to a connecting plate, and the connecting plate is fixed to the open end of the tool hopper.

[0009] Optionally, the telescopic driving member adopts a cylinder, the cylinder body of the cylinder is hinged to the hinge seat, and the piston rod of the cylinder is rotatably connected to the driving shaft.

[0010] Optionally, the discharge side edge of the top open end of the workpiece hopper is fixedly connected to a rotating shaft, the rotating shaft is located between two adjacent grooves above the pool body, and both ends of the rotating shaft are connected to bearing seats fixed on the upper surface of the pool body.

[0011] Optionally, the area of ​​the top open end of the workpiece hopper is larger than the area of ​​the bottom.

[0012] Optionally, the vibration element is a vibration motor, which is fixed inside a protective cover, and the protective cover is fixed at the bottom of the workpiece hopper. The vibration motor can transmit vibration to the workpiece hopper through the protective cover.

[0013] Optionally, along the conveying direction of the workpiece, the last slot is a cleaning slot, and a material guide plate is provided at the top of the end of the pool body. The material guide plate is inclined, and the height of the feed side of the material guide plate is higher than the height of the discharge side. A material receiving bucket is provided below the discharge end of the material guide plate.

[0014] Optionally, at least one tank is provided in front of the passivation tank as a cleaning tank.

[0015] In the second aspect, an embodiment of the present invention provides a working method of the automatic passivation device for galvanized workpieces described in the first aspect: a workpiece hopper in a passivation tank receives the galvanized workpieces to be passivated, the workpiece hopper vibrates under the action of a vibration element, and the workpieces in the workpiece hopper are passivated using the passivation liquid in the passivation tank. After the set passivation time, the flipping drive mechanism drives the workpiece hopper to flip to a maximum angle, and the workpiece hopper pours the workpiece into the workpiece hopper in a cleaning tank. The workpiece hopper in the cleaning tank vibrates driven by the vibration element, and the workpiece is cleaned using the cleaning liquid in the cleaning tank. After cleaning is completed, the workpiece hopper in the cleaning tank is flipped to a maximum angle driven by the flipping drive mechanism to pour out the cleaned workpieces.

[0016] Optionally, when the workpiece in the passivation tank is passivated, the workpiece hopper vibrates under the action of the vibrating element and at the same time, the flip driving mechanism performs a reciprocating rotational motion along a set stroke;

[0017] and / or

[0018] When the workpiece is cleaned in the cleaning tank, the workpiece hopper vibrates under the action of the vibrating element and at the same time, the turning drive mechanism performs reciprocating rotational motion along the set stroke;

[0019] Furthermore, the set stroke is one quarter to one third of the maximum stroke output by the flip drive mechanism.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The automatic passivation device and method for galvanized workpieces of the present invention are as follows: each slot of the pool body is provided with a workpiece hopper, the discharge side edge of the top open end of the workpiece hopper is rotatably connected to the rotating shaft arranged on the upper surface of the pool body, and the workpiece hopper is connected to a flipping drive mechanism, and the flipping drive mechanism can drive the workpiece hopper to flip, so that the workpiece hopper pours the workpiece into the workpiece hopper in the next slot, thereby realizing automatic transportation of the workpiece, and during the passivation or cleaning process, the rotating drive mechanism and the rotating shaft are used for support, and there is no need for the staff to manually hold the workpiece hopper, which greatly reduces the labor intensity of the staff, avoids the threat to the personal health of the staff, improves the work efficiency, and makes the entire passivation operation simpler. The flipping drive mechanism can control the flipping time according to a preset program, thereby ensuring the accuracy of the passivation time and the cleaning time, avoiding the error rate, and improving the product quality.

[0022] 2. In the automatic passivation device and method for galvanized workpieces of the present invention, a vibration element is provided on the bottom surface of the workpiece hopper. During the passivation or cleaning process, the vibration element can apply vibration to the workpiece, so that the workpiece is in a moving state. Any position of the workpiece can contact the passivation liquid and the cleaning liquid, thereby ensuring the passivation effect of the workpiece.

[0023] 3. In the automatic passivation device and method for galvanized workpieces of the present invention, during the passivation or cleaning process, the workpiece hopper vibrates and reciprocates according to the set stroke, which further increases the movement amplitude of the workpiece and ensures that any position of the workpiece can contact the passivation liquid and the cleaning liquid, thereby increasing the number of workpieces passivated at a single time and further improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0025] Figure 1 The overall structure of the embodiment 1 of the present invention is shown in FIG. Figure 1 ;

[0026] Figure 2 The overall structure of the embodiment 1 of the present invention is shown in FIG. Figure 2 ;

[0027] Among them, 1. the first cleaning tank, 2. the passivation tank, 3. the second cleaning tank, 4. the third cleaning tank, 5. the workpiece hopper, 6. the workpiece, 7. the rotating shaft, 8. the bearing seat, 9. the cylinder, 10. the hinged seat, 11. the driving shaft, 12. the connecting plate, 13. the guide plate, 14. the baffle, 15. the receiving barrel, 16. the barrel cover. DETAILED DESCRIPTION

[0028] Example 1

[0029] This embodiment provides a galvanized workpiece automatic passivation device, such as Figure 1-Figure 2 As shown, it includes a pool body, which adopts a rectangular parallelepiped structure. A plurality of grooves are arranged in the pool body, one of which is a passivation groove, at least one groove is arranged behind the passivation groove as a cleaning groove, and at least one groove is arranged in front of the passivation groove as a cleaning groove.

[0030] In this embodiment, the pool body is provided with four grooves, one of which is a passivation groove 2. A cleaning groove is provided in front of the passivation groove 2, which is the first cleaning groove 1, which is used to clean the workpiece before it enters the passivation groove to clean the dust and other debris on the surface of the workpiece. Two cleaning grooves are provided behind the passivation groove 2, which are the second cleaning groove 3 and the third cleaning groove 4, respectively, which are used to clean the passivation liquid on the surface of the workpiece after passivation.

[0031] Each of the four slots of the tank body is provided with a workpiece hopper 5 for containing workpieces 6 .

[0032] The bottom wall and / or at least one side wall of the workpiece hopper 5 has a mesh structure for passivation liquid or cleaning liquid to enter the interior of the workpiece hopper.

[0033] In this embodiment, the bottom wall of the workpiece hopper 5 has a mesh structure.

[0034] Preferably, the workpiece hopper 5 adopts an inverted cone structure, and the area of ​​the top open end is larger than the area of ​​the bottom.

[0035] A vibration element is provided at the bottom of the workpiece hopper 5, and vibration is applied to the workpiece 6 in the workpiece hopper 5 through the vibration element to prevent the workpiece 6 from remaining relatively motionless in the workpiece hopper 5 due to squeezing, thereby ensuring that every position of the workpiece can contact the passivation liquid or the cleaning liquid.

[0036] In this embodiment, the vibration element adopts a vibration motor, which is fixed inside a protective cover. The protective cover is fixedly connected to the bottom surface of the workpiece hopper 5. The vibration motor transmits vibration to the bottom wall of the workpiece hopper through the protective cover, thereby driving the workpiece 6 to vibrate.

[0037] The discharge side edge of the open end at the top of the workpiece hopper 5 is rotatably connected to the upper surface of the pool body through a rotating shaft 7. In this embodiment, the rotating shaft 7 is arranged above the part between two adjacent grooves of the pool body, and both ends of the rotating shaft 7 are connected to the bearing seat 8. The bearing seat 8 is fixed on the upper surface of the pool body. The discharge side edge of the open end of the workpiece hopper 5 is fixedly connected to the axial surface of the rotating shaft 8. The workpiece hopper 5 can be flipped so that the workpiece 6 inside it can be poured into the workpiece hopper 5 of the next groove.

[0038] The workpiece hopper is connected to a flipping drive mechanism fixed to the pool body, and the flipping drive mechanism can drive the workpiece hopper 5 to flip. When the flipping drive mechanism outputs to the maximum stroke, the workpiece hopper 5 can rotate to pour the workpiece inside it into the workpiece hopper 5 of the next slot.

[0039] The flipping drive mechanism includes a telescopic drive component, which can output linear telescopic motion. In this embodiment, the telescopic drive component adopts a cylinder 9, one end of the cylinder body of the cylinder 9 is hinged to a hinge seat 10 arranged on the side of the pool body, and the piston rod of the cylinder 9 is rotatably connected to one side end of the drive shaft 11. The drive shaft 11 is located above the open end of the workpiece hopper 5. The two edges of the top open end of the workpiece hopper 5 parallel to the workpiece conveying direction are fixedly connected to the bottom end of the connecting plate 12. The drive shaft 11 passes through the top ends of the two connecting plates 12, and the drive shaft 11 is fixedly connected to the connecting plate 12.

[0040] The telescopic movement of the piston rod of the cylinder 9 can drive the workpiece hopper 5 to flip through the drive shaft 11 and the connecting plate 12. When the piston rod of the cylinder 9 is extended to the maximum stroke, the workpiece hopper 5 can flip to pour the workpiece 6 into the workpiece hopper 5 of the next slot.

[0041] When the piston rod of the air cylinder 9 is fully retracted, the workpiece hopper 5 can be retracted into the interior of the groove, and the top open end remains in a horizontal state.

[0042] Preferably, in order to ensure the stability of the turning of the workpiece hopper 5, both sides of the drive shaft are rotatably connected to the piston rod of the cylinder 9, and the cylinder 9 is provided on both side surfaces of the pool body.

[0043] Along the conveying direction of the workpiece 6, a material guide plate 13 is provided at the top of the end of the tank body, and the material guide plate 13 can receive the workpiece 6 poured out by the workpiece hopper 5 in the third cleaning tank at the end of the tank body.

[0044] In this embodiment, the guide plate 13 is tilted, and the height of the feed end is higher than the height of the discharge end. Preferably, the width of the feed end of the guide plate 13 is greater than the width of the discharge end.

[0045] Baffles 14 are provided on both sides of the guide plate 13 to prevent the workpiece from falling from the side of the guide plate 13 .

[0046] A material receiving bucket 15 is provided below the material discharging end of the material guide plate 13 , and the material receiving bucket 15 is used to receive the workpiece 6 dropped from the material guide plate 13 .

[0047] The top of the material receiving barrel 15 is open, and a barrel cover 16 is rotatably connected to one side of the top open end of the material receiving barrel 15 , and the barrel cover 16 is used to open or close the top open end of the material receiving barrel 15 .

[0048] In this embodiment, the cylinder 9 is connected to the air compressor through the solenoid valve assembly, and the air is supplied to it by the control compressor. The solenoid valve assembly is connected to the control system, and the control system can control the operation of the solenoid valve assembly. The control system uses the solenoid valve group through the time relay to control the extension and retraction time of each cylinder. The vibration motor is also connected to the control system and can receive instructions from the control system to work.

[0049] The connection method of the cylinder, solenoid valve assembly, time relay and control system can adopt the existing technology and will not be described in detail here.

[0050] Example 2

[0051] This embodiment provides a working method of the automatic passivation device for galvanized workpieces described in Embodiment 1:

[0052] In the four tanks of the cell body, a cleaning liquid is pre-injected into the cleaning tank. In this embodiment, the cleaning liquid can be cleaning water. A passivation liquid is pre-injected into the passivation tank. The passivation liquid can be an existing passivation liquid, which will not be described in detail here.

[0053] The staff first pours the workpiece 6 to be passivated on the workpiece rack on one side of the automatic passivation device into the workpiece hopper 5 of the first cleaning tank 1 at the head end of the pool body, and the control system starts the corresponding vibration motor. The cleaning water in the first cleaning tank performs preliminary cleaning on the workpiece in the workpiece hopper 5 to clean off dust and impurities on the surface of the workpiece.

[0054] After the workpiece 6 in the first cleaning tank 1 is cleaned for a first set time, the control system controls the flipping drive mechanism connected to the workpiece hopper 5 in the first cleaning tank 1 to operate through the solenoid valve assembly, the piston rod of the cylinder 9 of the flipping drive mechanism is extended to the maximum stroke, the workpiece hopper 5 flips, and the workpiece hopper 5 pours the workpiece 6 into the workpiece hopper 5 in the passivation tank 2.

[0055] Then the control system controls the vibration motor at the bottom of the workpiece hopper 5 in the passivation tank 2 to start the passivation process for the workpiece 6.

[0056] After the vibration motor at the bottom of the workpiece hopper 5 in the passivation tank 2 works for the second set time, the control system starts the flip driving mechanism connected to the workpiece hopper 5 in the passivation tank 2, the piston rod of the cylinder 9 extends to the maximum stroke, and the workpiece hopper 5 pours the workpiece into the workpiece hopper 5 of the second cleaning tank 3 behind the passivation tank.

[0057] Then the vibration motor at the bottom of the workpiece hopper 5 in the second cleaning tank 3 starts to work, and the passivation liquid on the surface of the workpiece is cleaned with cleaning water. After the third set cleaning time, the control system controls the cylinder 9 connected to the workpiece hopper 5 in the second cleaning tank 3 to extend to the maximum stroke, and the workpiece hopper 5 flips over to pour the workpiece into the workpiece hopper 5 in the third cleaning tank 4.

[0058] Then, the same method is adopted to clean the workpiece again in the workpiece hopper 5 of the third cleaning tank 4 to obtain a clean workpiece. After cleaning for the fourth set time, the workpiece hopper 5 in the third cleaning tank 4 is turned over by the cylinder 9, and the workpiece is poured into the guide plate 13. The workpiece slides down along the guide plate 13 and enters the receiving barrel 15. At this time, the passivation process of the workpiece 6 is completed.

[0059] Furthermore, while the workpiece hoppers in the passivation tank and / or the three cleaning tanks are vibrating driven by the vibration motor, the piston rod of the cylinder 9 connected to the workpiece hopper performs reciprocating extension and retraction motions with a set stroke, further increasing the movement amplitude of the workpiece, ensuring that any position of the workpiece 6 can contact the passivation liquid and the cleaning liquid, increasing the number of workpieces passivated in a single passivation process, and further improving work efficiency.

[0060] The stroke is set to be one quarter to one third of the maximum stroke of the piston rod of the cylinder 9, preferably one third of the maximum stroke of the piston rod of the cylinder.

[0061] Preferably, the workpiece hoppers 5 in the passivation tank and the three cleaning tanks are vibrated by the vibration motor and the cylinders 9 are used to perform reciprocating turning motion.

[0062] By adopting the automatic passivation device and working method of the present embodiment, the cylinder 9 can drive the workpiece hopper 5 to flip, so that the workpiece hopper 5 pours the workpiece 6 into the workpiece hopper in the next slot, realizing the automatic transportation of the workpiece 6, and during the passivation or cleaning process, the cylinder 9 and the rotating shaft 7 are used for support, and there is no need for the staff to manually hold the workpiece hopper 5, which greatly reduces the labor intensity of the staff, avoids the threat to the personal health of the staff, improves the work efficiency, and makes the entire passivation operation simpler. The cylinder 9 can control the flipping time according to the pre-set program in the control system, ensures the accuracy of the passivation time and the cleaning time, avoids the error rate, ensures the uniformity and consistency of the passivation process, and improves the stability of the product quality. Through the use of the automatic passivation device of the present embodiment, the annual economic benefit is 184,696.38 yuan, and the staff is reduced by 2, which further reduces the labor cost.

[0063] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An automatic passivation device for galvanized workpieces, comprising a tank body, a plurality of slots are arranged in the tank body, one of which is a passivation tank, and at least one slot is arranged behind the passivation tank as a cleaning tank, characterized in that: The passivation tank and the cleaning tank are both provided with a workpiece hopper with an open top, the bottom wall and / or at least one side wall of the workpiece hopper is a mesh structure, wherein a vibration element is provided at the bottom of the workpiece hopper, the discharge side edge of the top open end of the workpiece hopper is rotatably connected to the tank body through a rotating shaft provided on the upper surface of the tank body, and the workpiece hopper is connected to a turning drive mechanism provided on the tank body; The overturning driving mechanism can drive the workpiece hopper to overturn so as to pour the workpieces in the workpiece hopper into the workpiece hopper in the rear groove.

2. The automatic passivation device for galvanized workpieces according to claim 1, characterized in that: The flipping drive mechanism includes a telescopic drive member, one end of which is hinged to a hinge seat arranged on the outer side of the side wall of the pool body, and the other end is rotatably connected to a drive shaft arranged above the workpiece hopper. The drive shaft is fixedly connected to a connecting plate, and the connecting plate is fixed to the open end of the tool hopper.

3. The automatic passivation device for galvanized workpieces according to claim 2, characterized in that: The telescopic driving member adopts a cylinder, the cylinder body of the cylinder is hinged to the hinge seat, and the piston rod of the cylinder is rotatably connected to the driving shaft.

4. The automatic passivation device for galvanized workpieces according to claim 1, characterized in that: The discharge side edge of the top open end of the workpiece hopper is fixedly connected to the rotating shaft, the rotating shaft is located between two adjacent grooves above the pool body, and both ends of the rotating shaft are connected to the bearing seats fixed on the upper surface of the pool body.

5. The automatic passivation device for galvanized workpieces according to claim 1, characterized in that: The area of ​​the top open end of the workpiece hopper is larger than the area of ​​the bottom.

6. The automatic passivation device for galvanized workpieces according to claim 1, characterized in that: The vibration element adopts a vibration motor, which is fixed inside the protective cover, and the protective cover is fixed at the bottom of the workpiece hopper. The vibration motor can transmit vibration to the workpiece hopper through the protective cover.

7. The automatic passivation device for galvanized workpieces according to claim 1, characterized in that: Along the conveying direction of the workpiece, the last slot is the cleaning slot. A material guide plate is provided at the top of the end of the tank body. The material guide plate is inclined. The height of the feed side of the material guide plate is higher than that of the discharge side. A material receiving bucket is provided below the discharge end of the material guide plate.

8. The automatic passivation device for galvanized workpieces according to claim 1, characterized in that: At least one tank is provided in front of the passivation tank as a cleaning tank.

9. A working method of the automatic passivation device for galvanized workpieces according to any one of claims 1 to 8, characterized in that: The workpiece hopper in the passivation tank receives the galvanized workpieces to be passivated, and the workpiece hopper vibrates under the action of the vibration element. The workpieces in the workpiece hopper are passivated with the passivation liquid in the passivation tank. After the set passivation time, the flip drive mechanism drives the workpiece hopper to flip to the maximum angle, and the workpiece hopper pours the workpiece into the workpiece hopper in the cleaning tank. The workpiece hopper in the cleaning tank vibrates under the drive of the vibration element, and the workpiece is cleaned with the cleaning liquid in the cleaning tank. After cleaning is completed, the workpiece hopper in the cleaning tank is flipped to the maximum angle driven by the flip drive mechanism to pour out the cleaned workpieces.

10. The working method of the automatic passivation device for galvanized workpieces according to claim 9, characterized in that: When the workpiece in the passivation tank is passivated, the workpiece hopper vibrates under the action of the vibrating element and at the same time, the turning drive mechanism performs reciprocating rotational motion along the set stroke; and / or, When the workpiece is cleaned in the cleaning tank, the workpiece hopper vibrates under the action of the vibrating element and at the same time, the turning drive mechanism performs reciprocating rotational motion along the set stroke; Furthermore, the set stroke is one quarter to one third of the maximum stroke output by the flip drive mechanism.

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