A detachable coating doctor blade for a coating machine
Patent Information
- Application Number
- CN202522653240.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-15
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-12-15
AI Technical Summary
The existing detachable coating blades lack coordinated design between the quick-release structure and the shock absorption function, resulting in insufficient connection stability, poor vibration buffering effect, and affecting the blade edge adhesion accuracy and coating uniformity.
By employing the snap-fit connection between the limiting post and the slide groove, the axial limiting of the fixing bolt, and the positioning connection between the slide rod and the guide hole, combined with the adaptive damping component of the damping spring and hydraulic damping, the scraper can be stably installed and its vibration suppressed.
It improves equipment maintenance efficiency, ensures the precision of the fit between the cutting edge and the substrate, significantly enhances coating uniformity and product quality, and reduces downtime losses.
Smart Images
Figure CN224926412U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coating machine equipment, specifically a detachable coating scraper for a coating machine. Background Technology
[0002] The coating blade is the core component of coating equipment, used to evenly coat the coating onto the substrate surface, control the coating thickness and smoothness. Detachable coating blades facilitate quick replacement of worn and different specifications of blades, reduce downtime for maintenance, adapt to multiple substrates and coating needs, improve equipment versatility, and at the same time facilitate cleaning and maintenance, reduce blade wear, and ensure coating accuracy and production efficiency.
[0003] In the existing technology, the quick-release structure and shock absorption function of the detachable coating blade lack coordinated design, resulting in low installation and disassembly efficiency, insufficient connection stability, poor vibration buffering effect, and easy to affect the blade edge fitting accuracy due to resonance or displacement, which in turn causes poor coating uniformity, low maintenance and replacement efficiency, and poor vibration suppression effect.
[0004] To address this, we propose a detachable coating blade for coating machines that features efficient installation and connection, enabling collaborative adaptive damping to ensure stable operation. Utility Model Content
[0005] One of the technical problems to be solved by this application is that the quick-release structure and shock absorption function of the detachable coating blade lack coordinated design, resulting in insufficient connection stability, poor vibration buffering effect, and easy to affect the blade edge fitting accuracy due to resonance or displacement, thus causing poor coating uniformity.
[0006] To address the aforementioned technical problems, this application provides a detachable coating blade for a coating machine, comprising a mounting base, a blade body slidably connected in a bottom connecting groove of the mounting base, quick-release components on both the left and right sides of the mounting base, sliding columns in the two quick-release components slidably connected to the left and right sides of the mounting base, a positioning protrusion at the end of each sliding column, and an adaptive damping component inside the mounting base.
[0007] In some embodiments, the quick-release assembly includes a threaded ring, the outer side of which is disposed outside the mounting base, the outer side of which is slidably connected to the inner side of the threaded ring, the outer side of which has two threaded segments, the threaded segments of which are threadedly connected to the inner side of the threaded ring, and a knob is disposed on the outer side of which.
[0008] In some embodiments, a return spring is provided on both the left and right sides of the scraper body, and a limit post is provided at the end of the return spring. The limit post is slidably connected to the outside of the scraper body, and the positioning protrusion is slidably connected to the outside of the positioning groove of the limit post.
[0009] In some embodiments, the bottom connecting groove of the mounting base is provided with sliding grooves on both the left and right sides, the outer side of the limiting post is slidably connected to the inner side of the sliding groove, and two grooves are opened on both sides of the inner side of the bottom connecting groove of the mounting base, the outer side of the limiting post and the inner side of the groove are in contact.
[0010] In some embodiments, the top outer side of the scraper body is provided with three limiting grooves, and the front side of the mounting base is threaded with three fixing bolts, the outer side of which is slidably connected to the inner side of the limiting grooves.
[0011] In some embodiments, the adaptive damping assembly includes a plurality of slide cylinders, the exterior of which is disposed inside the mounting base. A slide rod is slidably connected inside the slide cylinder, and a damping spring is sleeved on the exterior of the slide rod. The top of the damping spring is disposed at the bottom of the slide cylinder.
[0012] In some embodiments, a connecting plate is provided on the outside of the plurality of slide rods, the bottom ends of the plurality of slide rods are slidably connected to the top guide hole of the scraper body, hydraulic damping is provided on the horizontally similar side of two adjacent slide cylinders, and the bottom of the plurality of hydraulic damping is provided on the top of the connecting plate.
[0013] This utility model has at least the following beneficial effects: 1. Through the snap-fit of the limiting post and the slide groove, the axial limiting of the fixing bolt, and the positioning connection of the slide rod and the guide hole, a multi-fixing structure is formed to achieve the stable installation of the scraper body. It is also compatible with the damping component, which is directly connected to it and works together to ensure the vibration buffering effect and the fitting accuracy between the blade edge and the substrate. No complicated tools are required for disassembly and assembly. It can be completed by simply rotating the bolt and the knob. The operation is convenient and efficient, which greatly improves the equipment maintenance efficiency and reduces downtime losses.
[0014] 2. An adaptive damping component combining damping springs and hydraulic damping is adopted. The damping springs buffer the instantaneous vibrations caused by the impact of the slurry through elastic deformation, while the hydraulic damping absorbs vibration energy and suppresses resonance, forming a composite damping effect to avoid secondary vibration. At the same time, the longitudinal vibration direction is limited by the cooperation of the slide rod and the slide cylinder to prevent horizontal deviation, ensure the stability of the doctor blade edge, significantly improve the coating uniformity, and ensure the quality of the coated product. Attached Figure Description
[0015] Figure 1This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the connecting plate structure of this utility model; Figure 3 This utility model Figure 2 Enlarged diagram of A in the middle; Figure 4 This is a schematic diagram of the limiting groove structure of this utility model; Figure 5 This utility model Figure 4 Enlarged diagram of B in the diagram.
[0016] In the diagram: 1. Mounting base; 2. Scraper body; 3. Quick-release assembly; 31. Threaded ring; 32. Sliding column; 33. Positioning protrusion; 34. Knob; 35. Limiting column; 36. Return spring; 37. Limiting groove; 38. Fixing bolt; 4. Adaptive damping assembly; 41. Slide cylinder; 42. Slide rod; 43. Damping spring; 44. Connecting plate; 45. Hydraulic damping; 5. Groove; 6. Slide channel. Detailed Implementation
[0017] 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.
[0018] Example 1: Please refer to Figure 1 , Figure 3 , Figure 4 and Figure 5 This utility model provides a technical solution: a detachable coating scraper for a coating machine, including a mounting base 1, which provides installation support for the overall structure and is adapted to the main body of the coating machine. The scraper body 2 is slidably connected in the bottom connecting groove of the mounting base 1, forming an axial sliding fit to achieve quick loading and unloading. Quick-release components 3 are provided on both the left and right sides of the mounting base 1, and are symmetrically distributed to ensure balanced force. The sliding column 32 in the two quick-release components 3 is slidably connected to the left and right sides of the mounting base 1 and can move back and forth in the horizontal direction. The end of the sliding column 32 is provided with a positioning protrusion 33, and the cross section is arc-shaped to facilitate sliding into the positioning groove. An adaptive damping component 4 is provided inside the mounting base 1 to absorb the vibration energy during the coating process. The quick-release assembly 3 includes a threaded ring 31, which serves as a threaded connection and guide. The outer surface of the threaded ring 31 is set on the outside of the mounting base 1, and the embedded fixing ensures a stable connection. The outer surface of the sliding column 32 is slidably connected to the inner side of the threaded ring 31 to form a precision sliding fit. The outer surface of the sliding column 32 is provided with two threaded sections, which are adapted to the inner thread of the threaded ring 31 to realize helical transmission. The threaded sections of the sliding column 32 are threadedly connected to the inner side of the threaded ring 31, and axial feed is realized by rotation. The outer surface of the sliding column 32 is provided with a knob 34 for easy manual operation and rotation. Both sides of the scraper body 2 are provided with return springs 36 to provide elastic return force. The end of the return spring 36 is provided with a limit post 35 to realize the snap-fit limit of the scraper body 2. The external of the limit post 35 is slidably connected to the inside of the scraper body 2 and can move radially. The external of the positioning protrusion 33 is slidably connected to the external positioning groove of the limit post 35, forming a concave-convex fit to push the limit post 35 to retract. Both sides of the bottom connecting groove of the mounting base 1 are provided with sliding grooves 6, which are adapted to the limit post 35 to realize axial limit and cooperate with the adaptive damping component 4 to perform vibration reduction. The external slidable connection of the limiting post 35 is to the inner side of the slide groove 6 to form a snap-fit fixing structure. Two grooves 5 are opened on both sides of the bottom connecting groove of the mounting base 1 to guide the sliding of the limiting post 35. The external side of the limiting post 35 and the inner side of the groove 5 are in contact. The guide positioning protrusion 33 slides out of the positioning groove of the limiting post 35. Three limiting grooves 37 are opened on the top of the outer side of the scraper body 2, which are evenly distributed to ensure its axial limitation. Three fixing bolts 38 are threaded on the front side of the mounting base 1 to axially limit the sliding of the scraper body 2. The external slidable connection of the fixing bolts 38 is to the inner side of the limiting groove 37 to achieve the dual function of guidance and limitation.
[0019] Example 2: Please refer to Figures 3-5 The adaptive damping component 4 includes multiple sliding cylinders 41, which are horizontally and evenly distributed to ensure uniform force distribution. The exterior of the multiple sliding cylinders 41 is set inside the mounting base 1 and is fixed by welding to ensure structural stability. The interior of the sliding cylinders 41 is slidably connected to sliding rods 42, forming a sliding guide structure. The exterior of the sliding rods 42 is fitted with damping springs 43, which absorb vibration energy through elastic deformation. The top of the damping springs 43 is set at the bottom of the sliding cylinders 41 to provide elastic support. Multiple slide rods 42 are externally provided with connecting plates 44 to realize synchronous linkage of multiple slide rods 42. The outer bottom ends of multiple slide rods 42 are slidably connected in the top guide hole of the scraper body 2 to limit the vibration direction to longitudinal. Hydraulic dampers 45 are provided on the horizontally close side of two adjacent slide cylinders 41 to suppress resonance and secondary vibration. The bottom of multiple hydraulic dampers 45 is provided on the top of the connecting plate 44 and moves synchronously with the connecting plate 44.
[0020] Based on the above embodiments, the following is the complete working principle of the above embodiments: First, align the scraper body 2 with the connecting groove at the bottom of the mounting base 1 and insert it vertically upward along the connecting groove. During the insertion process, the limiting posts 35 on the left and right sides of the scraper body 2 are kept in an inward compressed state under the elastic action of the return spring 36. When the scraper body 2 begins to be inserted, the outer side of the limiting post 35 fits against the inner side of the groove 5 on both sides of the connecting groove. The groove 5 forms an initial limit on the limiting post 35, which facilitates sliding along the connecting groove at the bottom of the mounting base 1. When the scraper body 2 reaches the bottom of the inner side of the slide groove 6, the two limiting posts 35 are stretched outward by the elastic force of the return spring 36, so that they are locked inside the slide groove 6. Then, the three fixing bolts 38 on the front side of the mounting base 1 are rotated, so that the ends of the fixing bolts 38 slide along the inner side of the limiting groove 37 and abut against the bottom of the limiting groove 37. The preload of the fixing bolts 38 axially presses the scraper body 2 into the connecting groove of the mounting base 1. During this process, the scraper body 2 slides into the bottom of the outer side of the slide rod 42 in the guide hole at the top, forming the limiting of the slide groove 6. The multi-connection structure of bolt 38 for guidance and slide bar 42 for positioning ensures that the scraper body 2 does not loosen or shift during the coating process, thus guaranteeing coating accuracy. When the scraper body 2 needs to be replaced, first rotate the three fixing bolts 38 in the reverse direction to disengage the ends of the fixing bolts 38 from the bottom of the limiting groove 37, releasing the axial clamping restriction on the scraper body 2. Then, rotate the knobs 34 on the left and right sides in the reverse direction to drive the sliding column 32 to move axially along the threaded ring 31 into the mounting base 1. The positioning protrusion 33 slides into the limiting position synchronously with the sliding column 32. In the positioning groove of column 35, push the limiting column 35 to retract into the scraper body 2. At this time, the outer side of the limiting column 35 disengages from the inner side of the slide groove 6 and slides down into the inner side of the groove 5. With the arc-shaped appearance of its inner side and the passage provided on the upper and lower sides of the positioning groove of the limiting column 35, continue to pull the scraper body 2 down. The positioning protrusion 33 slides out from the positioning groove of the limiting column 35. Finally, pull the scraper body 2 down along the connecting groove to complete the disassembly. The entire disassembly and assembly process does not require complicated tools, is convenient to operate, and effectively improves maintenance efficiency.
[0021] During the coating process, the blade of the doctor blade body 2 is subjected to the instantaneous impact force of the slurry and the frictional force of the substrate, resulting in longitudinal vibration. This vibration is transmitted to the adaptive damping component 4 through the top of the doctor blade body 2. The vibration force first acts on the connecting plate 44. After the connecting plate 44 is subjected to downward pressure, it drives multiple slide rods 42 to slide downward along the interior of the corresponding slide cylinder 41. The damping springs 43 sleeved on the outside of the slide rods 42 are compressed, and the damping springs 43 undergo elastic deformation, converting some of the vibration energy into elastic potential energy, thus achieving initial buffering of the instantaneous impact force and reducing the vibration amplitude. At the same time, the hydraulic dampers 45 set on the horizontally similar side of two adjacent slide cylinders 41 move downward with the connecting plate 44. The hydraulic damper 45 generates damping force through the flow of internal hydraulic oil, absorbing vibration energy and converting it into heat energy for dissipation. This effectively suppresses resonance generated during the rebound of the damping spring 43, preventing secondary vibration of the scraper body 2. This creates a composite damping effect of elastic buffering by the damping spring 43 and energy dissipation and vibration reduction by the hydraulic damper 45, ensuring a smooth vibration process. The sliding fit structure between multiple slide rods 42 and slide cylinder 41, as well as the sliding connection between the bottom end of the slide rod 42 and the top guide hole of the scraper body 2, limits the vibration direction of the scraper body 2 to the longitudinal direction, preventing horizontal deviation or tilting. This ensures the adhesion accuracy between the scraper body 2 blade edge and the substrate surface, further improving the coating uniformity.
[0022] 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 process, method, article, or apparatus.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A detachable coating blade for a coating machine, comprising a mounting base (1), characterized in that: The scraper body (2) is slidably connected in the bottom connecting groove of the mounting base (1). Quick-release components (3) are provided on both the left and right sides of the mounting base (1). The sliding columns (32) in the two quick-release components (3) are slidably connected to the left and right sides of the mounting base (1). The end of the sliding column (32) is provided with a positioning protrusion (33). An adaptive damping component (4) is provided inside the mounting base (1).
2. The detachable coating blade for a coating machine according to claim 1, characterized in that: The quick-release assembly (3) includes a threaded ring (31), the outer side of which is disposed outside the mounting base (1), the outer side of which is slidably connected to the inner side of the threaded ring (31), the outer side of which is provided with two threaded segments, the threaded segments of which are threadedly connected to the inner side of the threaded ring (31), and the outer side of which is provided with a knob (34).
3. The detachable coating blade for a coating machine according to claim 1, characterized in that: Both sides of the scraper body (2) are provided with a return spring (36), and the end of the return spring (36) is provided with a limit post (35). The limit post (35) is externally slidably connected to the inside of the scraper body (2), and the positioning protrusion (33) is externally slidably connected to the external positioning groove of the limit post (35).
4. The detachable coating blade for a coating machine according to claim 3, characterized in that: The bottom connecting groove of the mounting base (1) is provided with sliding grooves (6) on both the left and right sides. The outer side of the limiting post (35) is slidably connected to the inner side of the sliding groove (6). Two grooves (5) are opened on both sides of the bottom connecting groove of the mounting base (1). The outer side of the limiting post (35) and the inner side of the groove (5) are in contact.
5. The detachable coating blade for a coating machine according to claim 1, characterized in that: The scraper body (2) has three limiting grooves (37) on its outer top. The front side of the mounting base (1) is threaded with three fixing bolts (38). The outer side of the fixing bolts (38) is slidably connected to the inner side of the limiting grooves (37).
6. The detachable coating blade for a coating machine according to claim 1, characterized in that: The adaptive damping component (4) includes multiple slide cylinders (41), the exterior of which is disposed inside the mounting base (1). A slide rod (42) is slidably connected inside the slide cylinder (41), and a damping spring (43) is sleeved on the exterior of the slide rod (42). The top of the damping spring (43) is disposed at the bottom of the slide cylinder (41).
7. The detachable coating blade for a coating machine according to claim 6, characterized in that: A connecting plate (44) is provided on the outside of the plurality of slide rods (42), and the bottom of the plurality of slide rods (42) is slidably connected in the top guide hole of the scraper body (2). A hydraulic damper (45) is provided on the horizontally close side of two adjacent slide cylinders (41), and the bottom of the plurality of hydraulic dampers (45) is provided on the top of the connecting plate (44).