A galvanized substrate pretreatment device and a pretreatment process thereof

Abstract

The application discloses a galvanized substrate pretreatment equipment and a pretreatment process thereof and belongs to the technical field of plate treatment. The equipment comprises a base, an overhead track conveying line, an acid pickling tank and a rinsing tank. Two placing tables are fixedly installed on the base, and containing inclined grooves for supporting workpieces are formed in the placing tables. A disturbance assembly and a filter plate are respectively installed in the acid pickling tank and the rinsing tank. The filter plate is fixedly installed in the acid pickling tank and the rinsing tank, and the disturbance assembly is located at the lower side of the workpieces. A plurality of vertical moving assemblies are fixedly installed on the output end of the overhead track conveying line at equal intervals. A fixing frame and an adjusting assembly are installed on the output end of the vertical moving assembly. The fixing frame comprises a main body assembly and a supporting assembly. The main body assembly is installed on the vertical moving assembly, and two groups of supporting assemblies are installed on the main body assembly. In the above manner, the gaps between the workpieces are ensured, and the plurality of workpieces are quickly clamped. The two groups of supporting assemblies alternately support the workpieces, so that the supporting points that are shielded all the time are avoided.

Description

Technical Field

[0001] This invention relates to the field of sheet metal processing technology, specifically to a pretreatment device and process for galvanized substrates. Background Technology

[0002] Before galvanizing metal sheets, in order to ensure the quality of galvanizing, pretreatment such as degreasing and rust removal cleaning is required to remove dirt and oxides from the surface of the metal sheets. One widely used method for removing oxides is pickling the metal sheets.

[0003] For example, Chinese patent CN220564690U discloses a hot-dip galvanizing pretreatment device. The device suspends the substrate with a hanger and moves the substrate into the pickling tank for pickling by a moving component. After pickling, the substrate is washed with water and dried to complete the treatment of the oxide layer.

[0004] However, there is a type of metal sheet on the market with insertion holes on its side. Using existing pickling and rinsing equipment, these sheets need to be hung one by one on a rack and then moved into the pickling tank by a moving device, which is inefficient. Furthermore, the contact area between the rack and the metal sheet is difficult to pickle, which can easily lead to incomplete pickling of the metal sheet.

[0005] Based on this, the present invention designs a galvanized substrate pretreatment device and its pretreatment process to solve the above problems. Summary of the Invention

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a zinc-plated substrate pretreatment equipment and its pretreatment process.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A galvanized substrate pretreatment device includes a base, a ceiling rail conveyor line located above the base, an acid pickling tank and a rinsing tank located on the left side of the base. Two placement platforms are fixedly installed on the base, located at the loading station and unloading station respectively; the placement platforms are provided with inclined grooves for supporting the workpieces. Both the pickling tank and the rinsing tank are equipped with agitation components and filter plates. The filter plates are fixedly installed inside the pickling tank and the rinsing tank, and the agitation components are located on the underside of the workpiece. Multiple vertical moving components are fixedly installed at equal intervals on the output end of the overhead rail conveyor; a fixing frame and an adjusting component are installed on the output end of the vertical moving components; The fixed frame includes a main body component and a support component. The main body component is mounted on the vertical moving component, and two sets of support components are installed on the main body component.

[0008] Furthermore, the vertical moving assembly includes a mounting frame, a cylinder, and a mounting plate. The mounting frame is fixedly installed on the output end of the overhead conveyor line, the cylinder is fixedly installed on the mounting frame, and the output end of the cylinder is fixedly installed with the mounting plate.

[0009] Furthermore, the main component includes guide rails, a movable frame, a sleeve, a first slide rod, a movable rod, and a combined assembly. Two guide rails are symmetrically fixedly installed on the lower side of the mounting plate. Movable frames are slidably connected to the two guide rails respectively. Sleeves are rotatably connected to both ends of the movable frames. First slide rods are slidably connected to the lower side of the sleeves. The lower sides of the two first slide rods are rotatably installed at both ends of the movable rod. The combined assembly is installed on the sleeves and the first slide rods.

[0010] Furthermore, the assembly includes a slider and a limiting groove. The upper end of the first slide rod is fixedly mounted with a slider, and a limiting groove is formed on the lower side of the sleeve. The slider is slidably connected to the limiting groove inside the limiting groove.

[0011] Furthermore, the support assembly includes a fixed block, a connecting rod, a mounting block, and an insert block. The fixed blocks of the two sets of support assemblies are respectively fixedly mounted on the sleeve and the first sliding rod. The two fixed blocks on the same side are rotatably connected to both ends of the connecting rod. There are two connecting rods, and the lengths of the two connecting rods are equal to those of the moving rod, and the connecting rods are parallel to the moving rod. The two ends of the mounting block are rotatably mounted on the two connecting rods, and the mounting block is parallel to the sleeve. There are multiple mounting blocks, and the multiple mounting blocks are evenly distributed at equal intervals on the connecting rods. An insert block that is inserted into the slot is fixedly mounted on the mounting block. The width of the insert block is the same as that of the slot, and the length of the insert block is less than that of the slot.

[0012] Furthermore, the adjustment assembly includes a first adjustment assembly and a second adjustment assembly, the first adjustment assembly being mounted on the sleeve and the mounting plate, and the second adjustment assembly being mounted on the movable frame and the mounting plate.

[0013] Furthermore, the first adjustment assembly includes a first push rod, a transmission rod, a slide groove, a second slide rod, and a limiting block. The first push rod is rotatably mounted on the mounting plate, and the output end of the first push rod is rotatably connected to the middle part of the transmission rod. Slide grooves are respectively opened on both sides of the transmission rod, and the second slide rod is slidably connected to the slide grooves for limiting. A limiting block is fixedly mounted on the upper end of the second slide rod, and the lower end of the second slide rod is fixedly mounted on a sleeve. The two sleeves fixedly connected to the second slide rod are rotatably mounted on different moving frames.

[0014] Furthermore, the second adjustment assembly includes a second push rod, a synchronizing rod, and a rotating rod. The second push rod is rotatably mounted on the mounting plate, and its output end is rotatably connected to one end of the synchronizing rod. The middle part of the synchronizing rod is rotatably mounted on the mounting plate. One end of the rotating rod is rotatably mounted on a movable frame. The other ends of the rotating rods on the two movable frames are respectively rotatably connected to both ends of the synchronizing rod.

[0015] Furthermore, the disturbance component includes a fan blade, a motor, and a sealed cavity. The sealed cavity is provided on the lower side of the pickling tank and the rinsing tank. The motor is fixedly installed in the sealed cavity. The output end of the motor passes through the sealed cavity through the sealing structure. The fan blade is fixedly installed on the output end of the motor. The fan blade is located inside the pickling tank and the rinsing tank, and the fan blade is located on the lower side of the filter plate.

[0016] To better achieve the objectives of this invention, the present invention also provides a pretreatment process for a galvanized substrate pretreatment device, comprising the following steps: Step 1: Insert the insert block on the sleeve into the upper slot and the insert block on the first slide rod into the lower slot to fix multiple workpieces. Then, the overhead conveyor line moves the cylinder and mounting plate through the mounting frame, thereby moving the multiple workpieces supported by the insert blocks. When it moves to the pickling station, the cylinder moves the moving frame, sleeve, and first slide rod downward through the mounting plate, thereby moving the fixing block and connecting rod on the sleeve and first slide rod downward. At this time, the bottom of the first slide rod and the moving rod do not contact the filter plate, and the insert block on the sleeve supports the inner top of the upper slot. The bottom of the slider contacts the bottom of the limiting groove, and the first slide rod is hung on the sleeve through the slider and the limiting groove. Step Two: After initial pickling for a period of time, the cylinder pushes the mounting plate downwards again. The mounting plate drives the moving frame, sleeve, and first sliding rod downwards until the bottom of the first sliding rod contacts the filter plate. The sleeve continues to move downwards, sliding vertically downwards relative to the first sliding rod under the limiting action of the slider and the limiting groove until the top of the slider contacts the top of the limiting groove. The slider supports the sleeve through the limiting groove. At this time, the insert on the sleeve does not contact the inner top of the upper slot, and the insert on the first sliding rod contacts the inner top of the lower slot. The insert on the first sliding rod supports the lower slot, thereby supporting the workpiece. Step 3: After pickling, the cylinder drives the moving frame, sleeve, and first slide rod to reset via the mounting plate. The overhead conveyor line drives the cylinder and mounting plate to move via the mounting frame. After reaching the rinsing station, the cylinder drives the moving frame, sleeve, and first slide rod to move downward via the mounting plate, thereby driving the fixed block and connecting rod on the sleeve and first slide rod to move downward. At this time, the bottom of the first slide rod and the moving rod do not contact the filter plate. The insert block on the sleeve supports the inner top of the upper slot. The bottom of the slider contacts the bottom of the limiting groove. The first slide rod is hung on the sleeve via the slider and the limiting groove. Step 4: After a period of initial rinsing, the cylinder pushes the mounting plate downwards again. The mounting plate drives the moving frame, sleeve, and first sliding rod downwards until the bottom of the first sliding rod contacts the filter plate. The sleeve continues to move downwards, sliding vertically downwards relative to the first sliding rod under the limiting action of the slider and the limiting groove until the top of the slider contacts the top of the limiting groove. The slider supports the sleeve through the limiting groove. At this time, the insert on the sleeve does not contact the inner top of the upper slot, while the insert on the first sliding rod contacts the inner top of the lower slot. The insert on the first sliding rod supports the lower slot, thus supporting the workpiece. The pretreatment of the workpiece is completed after rinsing.

[0017] The present invention has the following technical effects: 1. This invention uses an adjusting component to move a supporting component, allowing the supporting component to insert into a slot and support the workpiece. The vertical moving component, through the main component and the supporting component, moves the workpiece upwards. The adjusting component, through the main component, then moves multiple workpieces relative to each other, changing them from a tightly pressed, inclined state to a vertical state. This loosens the tight contact between the workpieces, allowing pickling and rinsing solutions to enter between them for pickling and rinsing. This eliminates the need to hang each workpiece individually on a fixture, enabling rapid clamping and fixing of multiple workpieces while maintaining sufficient spacing, thus improving pretreatment efficiency. The agitation components in the pickling and rinsing tanks stir the pickling and rinsing solutions, increasing the speed and efficiency of pickling and rinsing. Simultaneously, during pickling and rinsing, two sets of supporting components alternately support the workpieces, preventing any support points from being completely obstructed, which could lead to incomplete pickling and rinsing. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This invention provides a three-dimensional pretreatment device for galvanized substrates. Figure 1 ; Figure 2 This is a front view of a zinc-plated substrate pretreatment device according to the present invention; Figure 3 This is a front cross-sectional view of a zinc-plated substrate pretreatment device according to the present invention; Figure 4 This is a schematic diagram of the mounting bracket and its connection structure; Figure 5 This is a schematic diagram of the workpiece; Figure 6 This is a schematic diagram of the mobile frame and its connecting structure; Figure 7 Exploded view of the mobile frame and its connecting structure; Figure 8 for Figure 7 Enlarged view of point A in the middle; Figure 9 for Figure 3 Enlarged view of section B in the middle.

[0020] The labels in the diagram represent: 1. Base; 11. Placement platform; 12. Receiving chute; 2. Ceiling rail conveyor; 3. Pickling tank; 4. Rinsing tank; 5. Agitator assembly; 51. Fan blade; 52. Motor; 53. Sealing cavity; 6. Fixing frame; 61. Main assembly; 611. Guide rail; 612. Moving frame; 613. Sleeve; 614. First sliding rod; 615. Moving rod; 616. Sliding block; 617. Limiting groove; 62. Support assembly; 621. Fixing block; 622. Connecting... 623. Rod; 624. Mounting block; 7. Insert block; 7. Adjustment assembly; 71. First adjustment assembly; 711. First push rod; 712. Transmission rod; 713. Slide groove; 714. Second slide rod; 715. Limiting block; 72. Second adjustment assembly; 721. Second push rod; 722. Synchronizing rod; 723. Rotating rod; 8. Filter plate; 9. Vertical movement assembly; 91. Mounting bracket; 92. Cylinder; 93. Mounting plate; 10. Workpiece; 101. Slot. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0022] The present invention will be further described below with reference to embodiments.

[0023] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view. Example 1

[0024] Please refer to the instruction manual appendix. Figure 1-5 A galvanized substrate pretreatment device includes a base 1, a ceiling rail conveyor 2 located on the upper side of the base 1, an acid pickling tank 3 located on the left side of the base 1, and a rinsing tank 4. The loading station is located on the rear side of the base 1, and the unloading station is located on the front side of the base 1; the pickling tank 3 is located at the pickling station, and the rinsing tank 4 is located at the rinsing station. Two placement platforms 11 are fixedly installed on the base 1, and the two placement platforms 11 are located at the loading station and the unloading station respectively; the placement platform 11 is provided with a receiving inclined groove 12 for supporting the workpiece 10. Both pickling tank 3 and rinsing tank 4 are equipped with a disturbance component 5 and a filter plate 8. The filter plate 8 is fixedly installed inside the pickling tank 3 and rinsing tank 4, and the disturbance component 5 is located on the lower side of the workpiece 10. Multiple vertical moving components 9 are fixedly installed at equal intervals on the output end of the overhead conveyor line 2; a fixed frame 6 and an adjusting component 7 are installed on the output end of the vertical moving components 9; The fixed frame 6 includes a main body component 61 and a support component 62. The main body component 61 is mounted on the vertical moving component 9, and two sets of support components 62 are mounted on the main body component 61.

[0025] In this embodiment, when the galvanized substrate pretreatment equipment is working normally, multiple workpieces 10 are placed on the inclined groove 12 inside the placement table 11 located at the loading station, so that the multiple workpieces 10 are in an inclined state and closely attached together. After the vertical moving component 9 on the overhead conveyor line 2 moves to the loading station, the vertical moving component 9 drives the main body component 61 and the support component 62 to move downward until the support component 62 is aligned with the slot 101 on the workpiece 10. The adjusting component 7 drives the support component 62 to move, so that the support component 62 is inserted into the slot 101, thus completing the support of the workpiece 10. The vertical moving component 9 drives the workpiece 10 to move upward through the main body component 61 and the support component 62. Then, the adjusting component 7 drives the multiple workpieces 10 to move relative to each other through the main body component 61. The process changes multiple workpieces 10 from a tightly pressed, inclined state to a vertical state, loosening their close contact and allowing pickling and rinsing solutions to enter between them for pickling and rinsing. This eliminates the need to hang each workpiece 10 individually on a fixture, enabling rapid clamping and fixing of multiple workpieces 10 while maintaining sufficient spacing, thus improving pretreatment efficiency. The overhead conveyor 2, via the vertical moving component 9, moves the main component 61, support component 62, and multiple workpieces 10 to the pickling station. The vertical moving component 9, through the main component 61 and support component 62, simultaneously places the multiple workpieces 10 into the pickling tank 3 for pickling. After pickling, the vertical moving component 9 moves the main component 61 and support component... 62 Reset; The vertical moving component 9 is moved to the rinsing station by the overhead conveyor 2. The vertical moving component 9, through the main component 61 and the support component 62, simultaneously places multiple workpieces 10 into the rinsing tank 4 for rinsing, and cleans the residual acid on the multiple workpieces 10 in a timely manner; During this process, the agitation component 5 in the pickling tank 3 and the rinsing tank 4 is activated, and the agitation component 5 stirs the pickling and rinsing liquid, increasing the speed of pickling and rinsing and improving the pretreatment efficiency; At the same time, when the workpieces 10 enter the pickling tank 3 or the rinsing tank 4, the vertical moving component 9 drives the main component 61 and the support component 62 to move downward. The bottom of the main component 61 does not contact the filter plate 8, and the multiple workpieces 10 are supported by the upper support component 62. After pickling for a period of time... The vertical moving component 9, through the main component 61 and the support component 62, moves multiple workpieces 10 downwards until the main component 61 contacts the filter plate 8. The filter plate 8 supports the main component 61, while the multiple workpieces 10 are supported by the support component 62 on the lower side. This changes the support point during the pickling process, avoiding any support point that is completely blocked, which could lead to incomplete pickling and rinsing. After rinsing, the vertical moving component 9 moves the main component 61 and the support component 62 back to their original positions. The overhead conveyor 2 then moves the vertical moving component 9 to the unloading station. The adjusting component 7 places the multiple workpieces 10, after pickling and rinsing, into the receiving chute 12 at the unloading station. This completes the pretreatment of the multiple workpieces 10 and effectively improves processing efficiency. Example 2

[0026] like Figure 1-8 As shown, in a preferred embodiment of the present invention, the vertical moving component 9 includes a mounting frame 91, a cylinder 92 and a mounting plate 93. The mounting frame 91 is fixedly mounted on the output end of the overhead conveyor line 2, the cylinder 92 is fixedly mounted on the mounting frame 91, and the output end of the cylinder 92 is fixedly mounted on the mounting plate 93. The main component 61 includes guide rails 611, movable frames 612, sleeves 613, first sliding rods 614, movable rods 615, and a combined assembly. Two guide rails 611 are symmetrically fixedly installed on the lower side of the mounting plate 93. Movable frames 612 are slidably connected to the two guide rails 611 respectively. Sleeves 613 are rotatably connected to both ends of the movable frames 612 respectively. First sliding rods 614 are slidably connected to the lower side of the sleeves 613. The lower sides of the two first sliding rods 614 are rotatably installed at both ends of the movable rods 615 respectively. The combined assembly is installed on the sleeves 613 and the first sliding rods 614. The combined assembly includes a slider 616 and a limiting groove 617. The upper end of the first sliding rod 614 is fixedly installed with the slider 616, and the lower side of the sleeve 613 is provided with a limiting groove 617. The slider 616 is slidably connected to the limiting groove 617 inside the limiting groove 617. The support assembly 62 includes a fixing block 621, a connecting rod 622, a mounting block 623, and an insert block 624. The fixing blocks 621 of the two sets of support assemblies 62 are respectively fixedly mounted on the sleeve 613 and the first sliding rod 614. The two fixing blocks 621 on the same side are rotatably connected to the two ends of the connecting rod 622. There are two connecting rods 622, and the lengths of the two connecting rods 622 and the moving rod 615 are equal, and the connecting rods 622 and the moving rod 615 are parallel. The two ends of the mounting block 623 are respectively rotatably mounted on the two connecting rods 622. The mounting block 623 is parallel to the sleeve 613. There are multiple mounting blocks 623, which are evenly distributed at equal intervals on the connecting rods 622. An insert block 624 that is inserted into the slot 101 is fixedly mounted on the mounting block 623. The width of the insert block 624 is the same as that of the slot 101, and the length of the insert block 624 is less than that of the slot 101. The adjustment assembly 7 includes a first adjustment assembly 71 and a second adjustment assembly 72. The first adjustment assembly 71 is mounted on the sleeve 613 and the mounting plate 93, and the second adjustment assembly 72 is mounted on the movable frame 612 and the mounting plate 93.

[0027] In this embodiment, when the fixed frame 6 and the vertical moving assembly 9 are working normally, the cylinder 92 drives the moving frame 612, sleeve 613, and first slide rod 614 to move downwards via the mounting plate 93, thereby driving the fixed block 621 and connecting rod 622 on the sleeve 613 and the first slide rod 614 to move downwards until the multiple inserts 624 on the connecting rod 622 are aligned with the slots 101 on the side of the workpiece 10. The second adjusting assembly 72 is then activated to drive the moving frames 612 on both sides to move synchronously. The moving frames 612 move horizontally under the limiting action of the guide rail 611, so that the inserts 624 on both sides are inserted into the slots 101, completing the fixing of multiple workpieces 10. The cylinder 92 drives the mounting plate 93 to reset, thereby... The movable frame 612, sleeve 613, first slide bar 614, fixing block 621, connecting rod 622, and insert block 624 drive multiple workpieces 10 to move upward, causing the workpieces 10 to detach from the placement table 11; the second adjustment component 72 pushes the sleeve 613 to move, and the sleeve 613 drives the first slide bar 614 to move until the sleeve 613 and the first slide bar 614 are in a vertical state; at this time, the fixing block 621 on the sleeve 613 and the first slide bar 614 remains vertical, and the mounting block 623 remains vertical under the pull of the two connecting rods 622, thereby driving multiple workpieces 10 to remain vertical through the insert block 624, so that gaps are formed between the multiple workpieces 10, which facilitates the pretreatment of the workpieces 10 by pickling solution and rinsing solution; The overhead conveyor 2 moves the cylinder 92 and mounting plate 93 via the mounting frame 91, thereby moving multiple workpieces 10 via the moving frame 612, sleeve 613, first slide rod 614, connecting rod 622, and insert block 624. When reaching the pickling station, the cylinder 92 pushes the mounting plate 93 downward, thereby moving the moving frame 612, sleeve 613, and first slide rod 614 downward. At this time, the bottom of the first slide rod 614 and the moving rod 615 are not in contact with the filter plate 8, and the insert block 624 on the sleeve 613 supports the inner top of the upper slot 101. The bottom of the slider 616 contacts the bottom of the limiting groove 617, and the first slide rod 614 is hung on the sleeve 613 via the slider 616 and the limiting groove 617. After pickling for a period of time, the cylinder 92 pushes the mounting plate 93 downward again, and the mounting plate 93 moves the moving frame. 612. Sleeve 613 and first slide rod 614 move downwards until the bottom of the first slide rod 614 contacts the filter plate 8. Sleeve 613 continues to move downwards, sliding vertically downwards relative to the first slide rod 614 under the limiting action of slider 616 and limiting groove 617 until the top of slider 616 contacts the top of limiting groove 617. Slider 616 supports sleeve 613 through limiting groove 617. At this time, the insert 624 on sleeve 613 does not contact the inner top of upper slot 101, and the insert 624 on first slide rod 614 contacts the inner top of lower slot 101. The insert 624 on first slide rod 614 supports lower slot 101, thereby supporting workpiece 10 and exposing upper slot 101. This avoids the support point from being blocked, which would affect the pickling effect. The overhead conveyor 2 moves the cylinder 92 and mounting plate 93 via the mounting frame 91, thereby moving multiple workpieces 10 via the moving frame 612, sleeve 613, first slide rod 614, connecting rod 622, and insert block 624. When they reach the rinsing station, the cylinder 92 pushes the mounting plate 93 downward, thereby moving the moving frame 612, sleeve 613, and first slide rod 614 downward. At this time, the bottom of the first slide rod 614 and the moving rod 615 are not in contact with the filter plate 8, and the insert block 624 on the sleeve 613 supports the inner top of the upper slot 101. At this time, the bottom of the slider 616 contacts the bottom of the limiting groove 617, and the first slide rod 614 is hung on the sleeve 613 via the slider 616 and the limiting groove 617. After rinsing for a period of time, the cylinder 92 pushes the mounting plate 93 downward again, and the mounting plate 93 moves the moving frame 612, sleeve 613, first slide rod 614, connecting rod 622, and insert block 624. The frame 612, sleeve 613, and first slide rod 614 move downwards until the bottom of the first slide rod 614 contacts the filter plate 8. The sleeve 613 continues to move downwards, sliding vertically downwards relative to the first slide rod 614 under the limiting action of the slider 616 and the limiting groove 617, until the top of the slider 616 contacts the top of the limiting groove 617. The slider 616 supports the sleeve 613 through the limiting groove 617. At this time, the insert 624 on the sleeve 613 does not contact the inner top of the upper slot 101, while the insert 624 on the first slide rod 614 contacts the inner top of the lower slot 101. The insert 624 on the first slide rod 614 supports the lower slot 101, thereby supporting the workpiece 10 and exposing the upper slot 101. This avoids the support point from being blocked, which would affect the rinsing effect. Example 3

[0028] like Figure 1-9 As shown, in a preferred embodiment of the present invention, the first adjustment component 71 includes a first push rod 711, a transmission rod 712, a slide groove 713, a second slide rod 714, and a limiting block 715. The first push rod 711 is rotatably mounted on the mounting plate 93, and the output end of the first push rod 711 is rotatably connected to the middle part of the transmission rod 712. Slide grooves 713 are respectively opened on both sides of the transmission rod 712, and the second slide rod 714 is limited and slidably connected to the slide grooves 713. The limiting block 715 is fixedly mounted on the upper end of the second slide rod 714, and the lower end of the second slide rod 714 is fixedly mounted on the sleeve 613. The two sleeves 613 fixedly connected to the second slide rod 714 are rotatably mounted on different moving frames 612. The second adjustment assembly 72 includes a second push rod 721, a synchronizing rod 722, and a rotating rod 723. The second push rod 721 is rotatably mounted on the mounting plate 93, and its output end is rotatably connected to one end of the synchronizing rod 722. The middle part of the synchronizing rod 722 is rotatably mounted on the mounting plate 93. One end of the rotating rod 723 is rotatably mounted on the movable frame 612. The other ends of the rotating rods 723 on the two movable frames 612 are respectively rotatably connected to both ends of the synchronizing rod 722. The disturbance component 5 includes a fan blade 51, a motor 52, and a sealed cavity 53. The sealed cavity 53 is provided on the lower side of the pickling tank 3 and the rinsing tank 4. The motor 52 is fixedly installed in the sealed cavity 53. The output end of the motor 52 passes through the sealed cavity 53 through a sealing structure. The fan blade 51 is fixedly installed on the output end of the motor 52. The fan blade 51 is located inside the pickling tank 3 and the rinsing tank 4, and the fan blade 51 is located on the lower side of the filter plate 8. In this embodiment, when the disturbance component 5 and the adjustment component 7 are working normally, the second push rod 721 is activated; the second push rod 721 drives the moving frames 612 on both sides to move synchronously through the synchronizing rod 722 and the rotating rod 723. The moving frames 612 move horizontally under the limiting action of the guide rail 611, so that the insert blocks 624 on both sides are inserted into the slots 101, thus completing the fixation of multiple workpieces 10; during this process, when passing through the slide groove 713, the second slide rods 714 on both sides can move closer or further away from each other; the cylinder 92 drives the mounting plate 93 to reset, thereby moving the moving frame 612, the sleeve 613, and the first slide rod 61 4. The fixing block 621, connecting rod 622 and insert block 624 drive multiple workpieces 10 to move upward, so that the workpieces 10 are removed from the placement table 11; the first push rod 711 pushes the sleeve 613 to move through the transmission rod 712, and the sleeve 613 drives the first slide rod 614 to move until the sleeve 613 and the first slide rod 614 are in a vertical state; the limiting block 715 prevents the second slide rod 714 from sliding out of the slide groove 713; during pickling and rinsing, the motor 52 drives the fan blade 51 to rotate, thereby driving the pickling solution and rinsing solution to rotate, accelerating the flow of pickling solution and rinsing solution, and improving the pickling and rinsing efficiency. Example 4

[0029] like Figure 1-9 As shown, in a preferred embodiment of the present invention, a pretreatment process for a galvanized substrate pretreatment device is also provided, comprising the following steps: Step 1: Insert the insert block 624 on the sleeve 613 into the upper slot 101, and insert the insert block 624 on the first slide rod 614 into the lower slot 101, thus fixing multiple workpieces 10. Then, the overhead conveyor 2 moves the cylinder 92 and mounting plate 93 via the mounting frame 91, thereby moving the multiple workpieces 10 supported by the insert block 624. When they reach the pickling station, the cylinder 92 moves the moving frame 612 and sleeve 613 via the mounting plate 93. The first slide rod 614 moves downward, thereby driving the sleeve 613 and the fixing block 621 and connecting rod 622 on the first slide rod 614 to move downward. At this time, the bottom of the first slide rod 614 and the moving rod 615 do not contact the filter plate 8. The insert block 624 on the sleeve 613 supports the inner top of the upper slot 101. The bottom of the slider 616 contacts the bottom of the limiting groove 617. The first slide rod 614 is hung on the sleeve 613 through the slider 616 and the limiting groove 617. Step 2: After a period of initial pickling, cylinder 92 pushes mounting plate 93 downward again. Mounting plate 93 drives moving frame 612, sleeve 613 and first slide rod 614 downward until the bottom of first slide rod 614 contacts filter plate 8. Sleeve 613 continues to move downward. Under the limiting action of slider 616 and limiting groove 617, sleeve 613 slides vertically downward relative to first slide rod 614 until the top of slider 616 contacts the top of limiting groove 617. Slider 616 supports sleeve 613 through limiting groove 617. At this time, the insert 624 on sleeve 613 does not contact the inner top of upper slot 101, and the insert 624 on first slide rod 614 contacts the inner top of lower slot 101. The insert 624 on first slide rod 614 supports lower slot 101, thereby supporting workpiece 10. Step 3: After pickling, cylinder 92 drives the moving frame 612, sleeve 613 and first slide rod 614 to reset via mounting plate 93. The overhead conveyor 2 drives cylinder 92 and mounting plate 93 to move via mounting frame 91. After reaching the rinsing station, cylinder 92 drives the moving frame 612, sleeve 613 and first slide rod 614 to move downward via mounting plate 93, thereby driving the fixed block 621 and connecting rod 622 on sleeve 613 and first slide rod 614 to move downward. At this time, the bottom of first slide rod 614 and moving rod 615 does not contact filter plate 8. Insert block 624 on sleeve 613 supports the inner top of upper slot 101. The bottom of slider 616 contacts the bottom of limiting groove 617. First slide rod 614 is hung on sleeve 613 via slider 616 and limiting groove 617. Step 4: After a period of initial rinsing, cylinder 92 pushes mounting plate 93 downward again. Mounting plate 93 drives moving frame 612, sleeve 613 and first slide rod 614 downward until the bottom of first slide rod 614 contacts filter plate 8. Sleeve 613 continues to move downward. Under the limiting action of slider 616 and limiting groove 617, sleeve 613 slides vertically downward relative to first slide rod 614 until the top of slider 616 contacts the top of limiting groove 617. Slider 616 supports sleeve 613 through limiting groove 617. At this time, the insert 624 on sleeve 613 does not contact the inner top of upper slot 101, and the insert 624 on first slide rod 614 contacts the inner top of lower slot 101. The insert 624 on first slide rod 614 supports lower slot 101, thereby supporting workpiece 10. The pretreatment of workpiece 10 is completed after rinsing.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pretreatment device for galvanized substrates, comprising a base (1), a ceiling-mounted conveyor line (2) located on the upper side of the base (1), an pickling tank (3) located on the left side of the base (1), and a rinsing tank (4), characterized in that: Two placement platforms (11) are fixedly installed on the base (1), and the two placement platforms (11) are located at the loading station and the unloading station respectively; the placement platform (11) is provided with a receiving inclined groove (12) for supporting the workpiece (10). Both pickling tank (3) and rinsing tank (4) are equipped with a disturbance component (5) and a filter plate (8). The filter plate (8) is fixedly installed in the pickling tank (3) and rinsing tank (4), and the disturbance component (5) is located on the underside of the workpiece (10). Multiple vertical moving components (9) are fixedly installed at equal intervals on the output end of the overhead conveyor line (2); a fixed frame (6) and an adjusting component (7) are installed on the output end of the vertical moving component (9); The fixed frame (6) includes a main body component (61) and a support component (62). The main body component (61) is mounted on the vertical moving component (9), and two sets of support components (62) are mounted on the main body component (61). The workpiece (10) has an upper slot (101) and a lower slot (101) symmetrically opened on both sides. The vertical moving component (9) includes a mounting frame (91), a cylinder (92) and a mounting plate (93). The mounting frame (91) is fixedly installed on the output end of the overhead conveyor line (2), the cylinder (92) is fixedly installed on the mounting frame (91), and the output end of the cylinder (92) is fixedly installed with the mounting plate (93). The main component (61) includes a guide rail (611), a movable frame (612), a sleeve (613), a first slide rod (614), a movable rod (615), and a combined component. Two guide rails (611) are symmetrically fixedly installed on the lower side of the mounting plate (93). The movable frame (612) is slidably connected to the two guide rails (611). The sleeve (613) is rotatably connected to both ends of the movable frame (612). The first slide rod (614) is slidably connected to the lower side of the sleeve (613). The lower sides of the two first slide rods (614) are rotatably installed at both ends of the movable rod (615). The combined component is installed on the sleeve (613) and the first slide rod (614). The combined assembly includes a slider (616) and a limiting groove (617). The upper end of the first slide rod (614) is fixedly installed with the slider (616). The lower side of the sleeve (613) is provided with a limiting groove (617). The slider (616) is in a limiting sliding connection with the limiting groove (617) inside the limiting groove (617). The support assembly (62) includes a fixing block (621), a connecting rod (622), a mounting block (623), and an insert block (624). The fixing blocks (621) of the two sets of support assemblies (62) are respectively fixedly mounted on the sleeve (613) and the first sliding rod (614). The two fixing blocks (621) on the same side are rotatably connected to both ends of the connecting rod (622). There are two connecting rods (622). The lengths of the two connecting rods (622) and the moving rod (615) are equal. Parallel; the two ends of the mounting block (623) are rotatably mounted on the two connecting rods (622); and the mounting block (623) is parallel to the sleeve (613); multiple mounting blocks (623) are provided, and multiple mounting blocks (623) are evenly distributed at equal intervals on the connecting rods (622); a plug (624) is fixedly mounted on the mounting block (623) to be inserted into the slot (101) on the workpiece (10); and the width of the plug (624) is the same as that of the slot (101), and the length of the plug (624) is less than that of the slot (101).

2. The galvanized substrate pretreatment equipment according to claim 1, characterized in that, The adjustment assembly (7) includes a first adjustment assembly (71) and a second adjustment assembly (72). The first adjustment assembly (71) is mounted on the sleeve (613) and the mounting plate (93), and the second adjustment assembly (72) is mounted on the movable frame (612) and the mounting plate (93).

3. The zinc-plated substrate pretreatment equipment according to claim 2, characterized in that, The first adjustment component (71) includes a first push rod (711), a transmission rod (712), a slide groove (713), a second slide rod (714), and a limiting block (715). The first push rod (711) is rotatably mounted on the mounting plate (93), and the output end of the first push rod (711) is rotatably connected to the middle part of the transmission rod (712). The two sides of the transmission rod (712) are respectively provided with slide grooves (713), and the second slide rod (714) is limited and slidably connected to the slide grooves (713). The upper end of the second slide rod (714) is fixedly mounted with a limiting block (715), and the lower end of the second slide rod (714) is fixedly mounted on a sleeve (613). The two sleeves (613) fixedly connected to the second slide rod (714) are rotatably mounted on different moving frames (612).

4. The galvanized substrate pretreatment equipment according to claim 3, characterized in that, The second adjustment assembly (72) includes a second push rod (721), a synchronizing rod (722), and a rotating rod (723). The second push rod (721) is rotatably mounted on the mounting plate (93), and the output end of the second push rod (721) is rotatably connected to one end of the synchronizing rod (722). The middle part of the synchronizing rod (722) is rotatably mounted on the mounting plate (93). One end of the rotating rod (723) is rotatably mounted on the movable frame (612). The other ends of the rotating rods (723) on the two movable frames (612) are rotatably connected to the two ends of the synchronizing rod (722), respectively.

5. The galvanized substrate pretreatment equipment according to claim 4, characterized in that, The disturbance component (5) includes a fan blade (51), a motor (52) and a sealing cavity (53). The lower side of the pickling tank (3) and the rinsing tank (4) is provided with a sealing cavity (53). The motor (52) is fixedly installed in the sealing cavity (53). The output end of the motor (52) passes through the sealing cavity (53) through the sealing structure. The output end of the motor (52) is fixedly installed with a fan blade (51). The fan blade (51) is located inside the pickling tank (3) and the rinsing tank (4), and the fan blade (51) is located on the lower side of the filter plate (8).

6. A pretreatment process for a galvanized substrate pretreatment device as described in claim 5, characterized in that, Includes the following steps: Step 1: Insert the insert (624) on the sleeve (613) into the upper slot (101), and insert the insert (624) on the first slide rod (614) into the lower slot (101) to fix multiple workpieces (10); then the overhead conveyor line (2) drives the cylinder (92) and the mounting plate (93) to move through the mounting frame (91), thereby driving the multiple workpieces (10) supported by the insert (624) to move. When it moves to the pickling station, the cylinder (92) drives the moving frame (612) and the sleeve (613) through the mounting plate (93). The first slide rod (614) moves downward, thereby driving the sleeve (613) and the fixed block (621) and connecting rod (622) on the first slide rod (614) to move downward. At this time, the bottom of the first slide rod (614) and the moving rod (615) do not contact the filter plate (8). The insert block (624) on the sleeve (613) supports the inner top of the upper slot (101). The bottom of the slider (616) contacts the bottom of the limiting groove (617). The first slide rod (614) is hung on the sleeve (613) through the slider (616) and the limiting groove (617). Step 2: After a period of initial pickling, the cylinder (92) pushes the mounting plate (93) downward again. The mounting plate (93) drives the moving frame (612), sleeve (613) and first slide rod (614) downward until the bottom of the first slide rod (614) contacts the filter plate (8). The sleeve (613) continues to move downward. Under the limiting action of the slider (616) and the limiting groove (617), the sleeve (613) slides vertically downward relative to the first slide rod (614) until the slider (616)... The top of the sleeve (613) is in contact with the top of the limiting groove (617), and the slider (616) supports the sleeve (613) through the limiting groove (617); at this time, the insert (624) on the sleeve (613) is not in contact with the inner top of the upper slot (101), and the insert (624) on the first slide rod (614) is in contact with the inner top of the lower slot (101). The insert (624) on the first slide rod (614) supports the lower slot (101), thereby supporting the workpiece (10). Step 3: After pickling, the cylinder (92) drives the moving frame (612), sleeve (613), and first slide rod (614) to reset via the mounting plate (93). The overhead conveyor line (2) drives the cylinder (92) and mounting plate (93) to move via the mounting frame (91). After reaching the rinsing station, the cylinder (92) drives the moving frame (612), sleeve (613), and first slide rod (614) to move downward via the mounting plate (93), thereby driving the sleeve (613) and the first slide rod (614) to move downward. The fixed block (621) and connecting rod (622) on the first slide rod (614) move downwards. At this time, the bottom of the first slide rod (614) and the moving rod (615) do not contact the filter plate (8). The insert block (624) on the sleeve (613) supports the inner top of the upper slot (101). The bottom of the slider (616) contacts the bottom of the limiting groove (617). The first slide rod (614) is hung on the sleeve (613) through the slider (616) and the limiting groove (617). Step 4: After a period of initial rinsing, the cylinder (92) pushes the mounting plate (93) downward again. The mounting plate (93) drives the moving frame (612), sleeve (613), and first slide rod (614) downward until the bottom of the first slide rod (614) contacts the filter plate (8). The sleeve (613) continues to move downward. Under the limiting action of the slider (616) and the limiting groove (617), the sleeve (613) slides vertically downward relative to the first slide rod (614) until the top of the slider (616) contacts the limiting groove (617). The top of the sleeve (613) is in contact with the limit groove (617), and the slider (616) supports the sleeve (613) through the limit groove (617). At this time, the insert (624) on the sleeve (613) does not contact the inner top of the upper slot (101), and the insert (624) on the first slide rod (614) contacts the inner top of the lower slot (101). The insert (624) on the first slide rod (614) supports the lower slot (101), thereby supporting the workpiece (10). The pretreatment of the workpiece (10) is completed after rinsing.

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