A device for pickling and passivating a workpiece with a bend
By introducing filters and a hoisting mechanism into the pickling and passivation production unit for curved workpieces, the solid-liquid separation problem was solved, ensuring the stability of the pickling and passivation solution and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI LANHUA CLEANING TECHNOLOGY CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-02
AI Technical Summary
Existing pickling and passivation production equipment for curved workpieces lacks solid-liquid separation function, resulting in impurities and debris on the workpiece surface mixing with the pickling and passivation solution, affecting the stability of the liquid composition and increasing production costs.
A device including an acid pickling and passivation mechanism and a hoisting mechanism was designed. The acid pickling and passivation mechanism is equipped with a filter element for solid-liquid separation, and the hoisting mechanism is driven by a cylinder to move the placement element in the acid pickling and passivation tank to achieve full contact.
Solid-liquid separation was achieved, preventing debris from affecting the subsequent use of the pickling and passivation solution, reducing production costs and improving liquid stability.
Smart Images
Figure CN224313664U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of curved workpiece processing technology, specifically to a production device for pickling and passivating curved workpieces. Background Technology
[0002] Curved corner workpieces refer to workpieces with bending angles. They are widely used in many fields such as machinery manufacturing, automobiles, aerospace, and construction. For example, the side panels and roof panels of automobile bodies are usually made of metal sheets through bending processes to meet the requirements of body shape and structure. Curved ceiling panels and curved stair railings in building decoration also belong to this category.
[0003] The existing pickling and passivation production equipment for curved workpieces exhibits significant defects in actual operation. When the curved workpieces are placed inside the pickling and passivation tank, the pickling and passivation tank lacks solid-liquid separation capabilities. During the pickling and passivation process, impurities on the workpiece surface and residual debris from the processing continuously detach. Due to the lack of an effective solid-liquid separation mechanism, these debris mixes seamlessly with the pickling and passivation solution. Over time, this not only leads to a more complex and unstable composition of the pickling and passivation solution but also accelerates its deterioration, significantly impacting its effectiveness for future use and increasing production costs and maintenance difficulties. Utility Model Content
[0004] The purpose of this invention is to provide a pickling and passivation production device for curved workpieces to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a pickling and passivation production device for curved workpieces, including a mounting plate, a pickling and passivation mechanism is provided on the top left side of the mounting plate, and a hoisting mechanism is provided on the top of the pickling and passivation mechanism.
[0006] The pickling and passivation mechanism includes a rectangular groove, which is located on the left side of the mounting plate. A pickling and passivation tank is inserted into the rectangular groove. A filter element is installed in the pickling and passivation tank. Positioning frames are fixedly connected to both sides of the filter element. Circular grooves are opened on both sides of the positioning frames. Limiting rods are inserted into the circular grooves. A fixing plate is fixedly connected to the bottom of the limiting rod. The fixing plates are all fixedly connected to the pickling and passivation tank.
[0007] Preferably, the limiting rod surface is provided with threads, and a locking nut is threadedly connected to the limiting rod surface. The locking nut is located on the top of the positioning frame, and a handle is fixedly connected to the top of the positioning frame. By threading the locking nut to the surface of the limiting rod, the filter element can be installed.
[0008] Preferably, the filter element has uniformly sized filter holes and is rectangular in shape. The filter element can achieve solid-liquid separation.
[0009] Preferably, both sides of the pickling and passivation tank are fixedly connected to connecting plates, and the connecting plates have limiting grooves. Limiting plates are inserted into the limiting grooves and fixedly connected to the top of the mounting plate. The limiting plates can limit the pickling and passivation tank.
[0010] Preferably, the hoisting mechanism includes a placement component, the surface of which has filter holes of uniform size, and connecting blocks are fixedly connected to the top of both sides of the placement component. A steel wire rope is fixedly connected to the top of the connecting blocks. The steel wire rope is designed in a "U" shape, and the steel wire rope provides support for the placement component.
[0011] Preferably, the steel wire rope is rotatably connected to a pulley, the pulley is rotatably connected to a support frame, the support frame is fixedly connected to a fixing frame, the fixing frame is fixedly connected to the top of the mounting plate, and the fixing frame is located on the right side of the placement component. The pulley allows the placement component to be easily moved up and down.
[0012] Preferably, a positioning plate is fixedly connected to the bottom of the wire rope, a cylinder is fixedly connected to the bottom of the positioning plate, a rectangular plate is fixedly connected to the bottom of the cylinder, and the rectangular plate is fixedly connected to the top of the mounting plate. By activating the cylinder, the cylinder is stretched, at which point the placement part is inside the pickling and passivation tank and makes full contact with the pickling and passivation liquid.
[0013] Compared with the prior art, this utility model provides a pickling and passivation production device for curved workpieces, which has the following beneficial effects:
[0014] 1. The pickling and passivation production device for curved workpieces, through the pickling and passivation mechanism and the filter element, can separate the debris generated during the pickling and passivation of curved workpieces, making it convenient to collect the debris and preventing the debris from mixing with the pickling and passivation solution, which would affect the next use of the pickling and passivation solution.
[0015] 2. The pickling and passivation production device for curved workpieces uses a hoisting mechanism to activate a cylinder, which is then stretched. At this point, the workpiece is placed inside the pickling and passivation tank and comes into full contact with the pickling and passivation solution, thus achieving the purpose of cleaning the curved workpiece. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model from an oblique angle.
[0019] Figure 3 This is a schematic diagram of the pickling and passivation mechanism of this utility model;
[0020] Figure 4 This is a schematic diagram of the hoisting mechanism of this utility model.
[0021] In the diagram: 1. Mounting plate; 2. Pickling and passivation mechanism; 21. Limiting rod; 22. Fixing plate; 23. Pickling and passivation tank; 24. Connecting plate; 25. Limiting plate; 26. Filter element; 27. Handle; 28. Positioning frame; 3. Lifting mechanism; 31. Connecting block; 32. Placement component; 33. Wire rope; 34. Support frame; 35. Fixing frame; 36. Pulley; 37. Positioning plate; 38. Cylinder; 39. Rectangular plate. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] This utility model provides a technical solution:
[0024] Example 1:
[0025] Combination Figure 1-2 to Figure 3 A pickling and passivation production device for curved workpieces includes a mounting plate 1, a pickling and passivation mechanism 2 is provided on the top left side of the mounting plate 1, and a hoisting mechanism 3 is provided on the top of the pickling and passivation mechanism 2.
[0026] The pickling and passivation mechanism 2 includes a rectangular groove, which is located on the left side of the mounting plate 1. A pickling and passivation tank 23 is inserted into the rectangular groove. A filter element 26 is installed in the pickling and passivation tank 23. Positioning frames 28 are fixedly connected to both sides of the filter element 26. Circular grooves are opened on both sides of the positioning frames 28. Limiting rods 21 are inserted into the circular grooves. A fixing plate 22 is fixedly connected to the bottom of the limiting rods 21. The fixing plates 22 are all fixedly connected to the pickling and passivation tank 23.
[0027] Furthermore, the surface of the limiting rod 21 is provided with threads, and a locking nut is threadedly connected to the surface of the limiting rod 21. The locking nut is located on the top of the positioning frame 28, and a handle 27 is fixedly connected to the top of the positioning frame 28. By threading the locking nut to the surface of the limiting rod 21, the filter element 26 can be installed.
[0028] Furthermore, the filter element 26 has uniformly sized filter holes and is rectangular in shape. Through the filter element 26, solid-liquid separation can be achieved.
[0029] Furthermore, both sides of the pickling and passivation tank 23 are fixedly connected to connecting plates 24. Limiting grooves are opened in the connecting plates 24, and limiting plates 25 are inserted into the limiting grooves. The limiting plates 25 are fixedly connected to the top of the mounting plate 1. The limiting plates 25 can limit the pickling and passivation tank 23.
[0030] Example 2:
[0031] See Figure 4 Furthermore, based on Embodiment 1, the hoisting mechanism 3 further includes a placement component 32. The surface of the placement component 32 is provided with filter holes of uniform size. Connecting blocks 31 are fixedly connected to the top of both sides of the placement component 32. A steel wire rope 33 is fixedly connected to the top of the connecting blocks 31. The steel wire rope 33 is designed in a "U" shape. The steel wire rope 33 is used to support the placement component 32.
[0032] Furthermore, a pulley 36 is rolledly connected to the surface of the wire rope 33, a support frame 34 is rotatably connected to the surface of the pulley 36, a fixing frame 35 is fixedly connected to the surface of the support frame 34, the fixing frame 35 is fixedly connected to the top of the mounting plate 1, and the fixing frame 35 is located on the right side of the placement component 32. Through the pulley 36, the placement component 32 can be easily moved up and down.
[0033] Furthermore, a positioning plate 37 is fixedly connected to the bottom of the wire rope 33, a cylinder 38 is fixedly connected to the bottom of the positioning plate 37, a rectangular plate 39 is fixedly connected to the bottom of the cylinder 38, and the rectangular plate 39 is fixedly connected to the top of the mounting plate 1. By activating the cylinder 38, the cylinder 38 is stretched, at which point the placement part 32 is inside the pickling and passivation tank 23 and comes into full contact with the pickling and passivation liquid.
[0034] The working principle of this utility model is as follows: In actual operation, when this device is used, firstly, the pickling and passivation tank 23 is placed inside the rectangular groove opened on the left side of the mounting plate 1. At this time, the limiting plate 25 can be inserted into the limiting groove opened inside the connecting plate 24 to position the pickling and passivation tank 23. Then, the filter element 26 is placed inside the pickling and passivation tank 23. At this time, the limiting rod 21 can be inserted into the circular groove opened inside the positioning frame 28. Then, the locking nut is threaded to the surface of the limiting rod 21 to install the filter element 26. Next, the curved workpiece is placed inside the placement part 32. By starting the cylinder 38, the cylinder 38 is stretched. At this time, the placement part 32 is inside the pickling and passivation tank 23 and makes full contact with the pickling and passivation liquid. At this time, the purpose of cleaning the curved workpiece can be achieved.
[0035] After the curved workpiece has been pickled and passivated, the filter element 26 can be removed from the pickling and passivation tank 23 by reversing the above operation. The filter element 26 can separate the debris generated during the pickling and passivation of the curved workpiece, making it convenient to collect the debris and preventing the debris from mixing with the pickling and passivation solution, which would affect the next use of the pickling and passivation solution.
[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. A pickling and passivation production apparatus for curved workpieces, comprising a mounting plate (1), characterized in that: The mounting plate (1) is provided with a pickling and passivation mechanism (2) on the top left side, and the pickling and passivation mechanism (2) is provided with a hoisting mechanism (3) on the top. The pickling and passivation mechanism (2) includes a rectangular groove, which is located on the left side of the mounting plate (1). A pickling and passivation tank (23) is inserted into the rectangular groove. A filter element (26) is installed in the pickling and passivation tank (23). A positioning frame (28) is fixedly connected to both sides of the filter element (26). A circular groove is opened on both sides of the positioning frame (28). A limiting rod (21) is inserted into the circular groove. A fixing plate (22) is fixedly connected to the bottom of the limiting rod (21). The fixing plate (22) is fixedly connected to the pickling and passivation tank (23).
2. The pickling and passivation production apparatus for curved workpieces according to claim 1, characterized in that: The limiting rod (21) has a threaded surface, and a locking nut is threadedly connected to the surface of the limiting rod (21). The locking nut is located on the top of the positioning frame (28), and a handle (27) is fixedly connected to the top of the positioning frame (28).
3. The pickling and passivation production apparatus for curved workpieces according to claim 1, characterized in that: The filter element (26) has uniformly sized filter holes and is rectangular in shape.
4. The pickling and passivation production apparatus for curved workpieces according to claim 1, characterized in that: Both sides of the pickling and passivation tank (23) are fixedly connected to a connecting plate (24). A limiting groove is opened in the connecting plate (24), and a limiting plate (25) is inserted into the limiting groove. The limiting plate (25) is fixedly connected to the top of the mounting plate (1).
5. The pickling and passivation production apparatus for curved workpieces according to claim 1, characterized in that: The hoisting mechanism (3) includes a placement component (32), the surface of which is provided with filter holes of uniform size, and connecting blocks (31) are fixedly connected to the top of both sides of the placement component (32). A steel wire rope (33) is fixedly connected to the top of the connecting block (31), and the steel wire rope (33) is designed in a "U" shape.
6. The pickling and passivation production apparatus for curved workpieces according to claim 5, characterized in that: The steel wire rope (33) is rolledly connected to a pulley (36), the pulley (36) is rotatably connected to a support frame (34), the support frame (34) is fixedly connected to a fixing frame (35), the fixing frame (35) is fixedly connected to the top of the mounting plate (1), and the fixing frame (35) is located on the right side of the placement piece (32).
7. The pickling and passivation production apparatus for curved workpieces according to claim 5, characterized in that: The bottom of the wire rope (33) is fixedly connected to a positioning plate (37), the bottom of the positioning plate (37) is fixedly connected to a cylinder (38), the bottom of the cylinder (38) is fixedly connected to a rectangular plate (39), and the rectangular plate (39) is fixedly connected to the top of the mounting plate (1).