Drying oven inner roller surface cleaning device
By designing a roller surface cleaning device inside the drying oven, which uses telescopic rods and scraper structures to peel off the adhering substances on the roller surface, the problems of low cleaning efficiency and safety hazards in the existing technology are solved, thereby improving the production efficiency and product quality of lithium battery separator coating.
Patent Information
- Application Number
- CN202520551929.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-27
AI Technical Summary
In the existing lithium battery separator coating process, stains on the surface of the drying oven rollers cause uneven coating, resulting in low cleaning efficiency, poor effect, and safety hazards, which affects production efficiency and product quality.
A device for cleaning the surface of rollers inside an oven is designed. It adopts a telescopic rod and scraper structure. By adjusting the distance between the fixed seats, the scraper contacts the roller surface to peel off the attached substances, avoiding damage caused by manual operation and improving cleaning efficiency and safety.
It achieves efficient and safe roller cleaning, reduces downtime, improves coating quality stability and equipment production efficiency, and extends roller life.
Smart Images

Figure CN223970553U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of lithium battery separator coating technology, specifically a device for cleaning the surface of rollers inside an oven. Background Technology
[0002] In existing lithium-ion battery separator coating processes, residues of coating slurry, dust, and other contaminants easily accumulate on the surface of the drying oven rollers during long-term operation. These stains can lead to uneven coating, defects, and even affect the performance of the separator (such as porosity and thickness consistency). Currently, cleaning the rollers mainly relies on manual operation, which usually requires stopping the machine and using tools such as solvents, wiping cloths, or scrapers for cleaning. This method has the following problems: 1. Low efficiency: The cleaning process is time-consuming, resulting in long equipment downtime and affecting production efficiency; 2. Poor cleaning effect: Manual operation is inconvenient, the cleaning effect is poor, cleaning standards cannot be controlled, and it is easy to damage the roller surface; 3. Safety hazards: There are operational risks when using solvents or tools, which may affect personnel health and the environment. With the continuous improvement of the quality requirements for separator coating in the lithium-ion battery industry, there is an urgent need for an efficient, convenient, and low-cost roller cleaning solution to reduce downtime, improve production efficiency, and enhance product quality. Utility Model Content
[0003] This invention provides a surface cleaning device for rollers inside an oven, which avoids incomplete or excessive cleaning caused by manual operation, thereby ensuring that the roller surface is always in the best condition and improving the stability and consistency of coating quality; and avoids scratches or wear on the roller surface.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a roller surface cleaning device for an oven, comprising a telescopic rod, with fixed seats connected to both axial ends of the telescopic rod. An arc-shaped groove matching the roller is provided on the outward-facing end face of the fixed seat. Roller friction seats for contacting the roller surface are provided on the front and rear sides of the fixed seat. Scrapers are installed on the upper and / or lower sides of the arc-shaped groove. The distance between the two fixed seats can be adjusted by the telescopic rod. The roller friction seats can contact the outer walls of the rollers on both sides. When the rollers rotate, the scrapers can peel off the deposits on the outer surface of the rollers, reducing the cleaning time, shortening equipment downtime, and improving equipment production efficiency.
[0005] Preferably, the telescopic rod includes a guide sleeve and a sliding shaft extending axially into the guide sleeve. The ends of the guide sleeve and the sliding shaft are respectively connected to a fixed seat. An axial locking component is provided between the guide sleeve and the sliding shaft. The relative sliding of the guide sleeve and the sliding shaft can adjust the overall length of the telescopic rod. The axial locking component can lock the axial displacement between the guide sleeve and the sliding shaft after the length is adjusted.
[0006] Preferably, the locking component is a locking screw that passes through the guide sleeve and abuts radially against the slide shaft. The outer end of the locking screw is connected to a fixed handle, which allows the locking screw to be easily rotated to lock the slide shaft.
[0007] Preferably, the ends of the guide sleeve and the slide shaft are connected to the corresponding fixed seats through the first fixed block and the second fixed block, respectively. The first fixed block and the second fixed block can be threadedly connected to the guide sleeve and the slide shaft, and the first fixed block and the second fixed block can be fixedly connected to the corresponding fixed seats by screws, so as to facilitate the fixed connection between the guide sleeve and the slide shaft and the fixed seats.
[0008] Preferably, the outer wall of the guide sleeve is provided with a guide groove along the axial direction, and the sliding shaft is equipped with a guide pin embedded in the guide groove, which can realize the anti-rotation sliding fit between the guide sleeve and the sliding shaft.
[0009] Preferably, the scraper is connected to the fixed base via a scraper clamping block, which facilitates quick replacement of the scraper.
[0010] Preferably, the telescopic rod is equipped with a push-pull ring, which is used to couple with a matching manual push-pull rod to push the roller surface cleaning device to move along the roller axis. The cleaning can be completed with a simple push-pull operation, which is convenient and quick.
[0011] Preferably, the front end and / or rear end of the fixed seat are equipped with at least one limiting extension rod to prevent the mechanism from detaching from the roller when manually pushed to both ends of the roller.
[0012] Preferably, the roller friction seat material is polytetrafluoroethylene (PTFE). PTFE has a low friction factor and its material is softer than the roller material, so it cannot damage the roller surface.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] With a simple structure, the distance between the two fixed seats can be adjusted by setting a telescopic rod. The roller friction seat can contact the outer walls of the two rollers. When the roller rotates, the scraper can peel off the adhering substances on the outer surface of the roller, reducing the cleaning time of the roller, shortening the equipment downtime, improving the production efficiency of the equipment, and avoiding damage to the roller surface or inconsistent cleaning degree caused by manual operation, thus improving the coating quality and stability and extending the roller life. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention in use.
[0016] Figure 2 for Figure 1 Enlarged structural diagram at point I;
[0017] Figure 3 This is an overall structural diagram of the present invention;
[0018] Figure 4 This is a structural diagram of the manual push-pull rod of this utility model.
[0019] Figure label:
[0020] 1. Scraper, 11. Fixed handle, 12. Guide pin, 13. Manual push-pull rod, 2. Scraper pressing block, 3. Fixed seat, 4. First fixed block, 5. Guide sleeve, 6. Push-pull ring, 7. Sliding shaft, 8. Limiting extension rod, 9. Second fixed block, 10. Roller friction seat. Detailed Implementation
[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0022] This invention aims to avoid incomplete or excessive cleaning caused by manual operation, thereby ensuring the roller surface remains in optimal condition and improving the stability and consistency of coating quality; it also prevents scratches or wear on the roller surface. The following technical solution is provided: Figure 1-4 As shown, a roller surface cleaning device for an oven includes a telescopic rod. Both axial ends of the telescopic rod are connected to fixed seats 3. The outward-facing end face of each fixed seat 3 has an arc-shaped groove matching the roller. Roller friction seats 10 for contacting the roller surface are provided on the front and rear sides of the fixed seat 3. Scrapers 1 are installed on the upper and / or lower sides of the arc-shaped groove. The distance between the two fixed seats 3 can be adjusted by the telescopic rod. The roller friction seats 10 can contact the outer walls of the rollers on both sides. When the rollers rotate, the scrapers 1 can peel off the deposits on the outer surface of the rollers, reducing the cleaning time, shortening equipment downtime, and improving equipment production efficiency.
[0023] Specifically, the shape of the fixed seat 3 matches the roller, and the shape of the roller friction seat 10 matches the shape of the side wall of the fixed seat 3. Both have arc-shaped grooves, with the grooves positioned closer to the outer edge, allowing them to contact the roller first. The forward extension of the scraper 1 allows it to contact the outer wall of the roller, and the scraped-off material accumulates along the scraper 1. The scraper 1 is connected to the fixed seat 3 via the scraper clamp 2, facilitating quick replacement of the scraper 1. The roller friction seat 10 is made of polytetrafluoroethylene (PTFE), which has a low friction factor and is relatively softer than the roller material, thus preventing damage to the roller surface.
[0024] In this embodiment, the telescopic rod includes a guide sleeve 5 and a sliding shaft 7 extending axially into the guide sleeve 5. The ends of the guide sleeve 5 and the sliding shaft 7 are respectively connected to a fixed seat 3. An axial locking component is provided between the guide sleeve 5 and the sliding shaft 7. The guide sleeve 5 and the sliding shaft 7 can slide relative to each other to adjust the overall length of the telescopic rod. The axial locking component can lock the axial displacement between the guide sleeve 5 and the sliding shaft 7 after the length is adjusted. The guide sleeve 5 and the sliding shaft 7 slide smoothly and are very convenient to adjust.
[0025] In this embodiment, the locking component is a locking screw that passes through the guide sleeve 5 and abuts radially against the slide shaft 7. The outer end of the locking screw is connected to a fixed handle 11. The locking screw can be easily rotated through the fixed handle 11 to lock the slide shaft 7. The operation is very convenient. The fixed handle 11 only needs to be rotated by a small angle to lock the locking screw.
[0026] In this embodiment, as Figure 3 As shown, the ends of the guide sleeve 5 and the slide shaft 7 are respectively connected to the corresponding fixed base 3 through the first fixed block 4 and the second fixed block 9. The first fixed block 4 and the second fixed block 9 can be threaded to the guide sleeve 5 and the slide shaft 7. The first fixed block 4 and the second fixed block 9 can be fixedly connected to the corresponding fixed base 3 by screws, which facilitates the fixed connection between the guide sleeve 5 and the slide shaft 7 and the fixed base 3. The first fixed block 4 and the second fixed block 9 can be square, with screws at the top corners of their four sides, which facilitates the quick connection between the first fixed block 4 and the second fixed block 9 and the fixed base 3.
[0027] In this embodiment, as Figure 3 As shown, a guide groove is provided along the axial direction on the outer side wall of the guide sleeve 5, and a guide pin 12 embedded in the guide groove is installed on the sliding shaft 7, which can realize the anti-rotation sliding fit between the guide sleeve 5 and the sliding shaft 7. The length of the guide groove matches the sliding shape of the sliding shaft 7, which can not only guide, but also limit.
[0028] To facilitate manual operation of the roller surface cleaning device, a push-pull ring 6 is installed on the telescopic rod. The push-pull ring 6 is used to couple with the matching manual push-pull rod 13 to push the roller surface cleaning device to move along the roller axis. The cleaning can be completed with a simple push-pull operation, which is convenient and quick.
[0029] At the same time, such as Figure 2 As shown, at least one limiting extension rod 8 is installed at the front end and / or rear end of the fixed seat 3, which can prevent the mechanism from detaching from the roller when manually pushed to both ends of the roller.
[0030] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.
[0031] Furthermore, in this utility model, descriptions involving terms such as "primary," "secondary," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "primary" or "secondary" may explicitly or implicitly include at least one of those features. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly and specifically defined.
[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0033] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
Claims
1. An apparatus for cleaning the surface of a roll in an oven, characterized by, The invention relates to a roller surface cleaning device, comprising a telescopic rod, the axial both ends of which are connected with a fixed seat (3), the outward end face of which is provided with an arc-shaped groove matched with the roller, the front and back sides of the fixed seat (3) are provided with roller friction seats (10) for contacting the surface of the roller, and the upper side and / or lower side of the arc-shaped groove is provided with a scraper (1).
2. An in-oven roller barrel surface cleaning apparatus as claimed in claim 1, wherein: The telescopic rod comprises a guide sleeve (5) and a sliding shaft (7) axially extending into the guide sleeve (5), the ends of the guide sleeve (5) and the sliding shaft (7) are respectively connected with a fixed seat (3), and an axial locking component is arranged between the guide sleeve (5) and the sliding shaft (7).
3. An in-oven roller barrel surface cleaning apparatus as claimed in claim 2, wherein: The locking component is a locking screw radially abutting the guide sleeve (5) and the sliding shaft (7), the outer end of the locking screw is connected with a fixed handle (11).
4. The in-oven roller barrel surface cleaning apparatus of claim 2, wherein: The ends of the guide sleeve (5) and the sliding shaft (7) are respectively connected with the corresponding fixed seat (3) through a first fixed block (4) and a second fixed block (9).
5. The in-oven roller barrel surface cleaning apparatus of claim 2, wherein: The outer side wall of the guide sleeve (5) is provided with a guide groove along the axial direction, and the sliding shaft (7) is provided with a guide pin (12) embedded into the guide groove.
6. The in-oven roller barrel surface cleaning apparatus of claim 2, wherein: The scraper (1) is connected with the fixed seat (3) through a scraper pressing block (2).
7. An in-oven roller barrel surface cleaning apparatus as claimed in any one of claims 1 to 6, wherein: A push-pull ring (6) is arranged on the telescopic rod, which is used for coupling with a matched artificial push-pull rod (13) to push the roller surface cleaning device to move along the axial direction of the roller.
8. An in-oven roller barrel surface cleaning apparatus as claimed in any one of claims 1 to 6, wherein: At least one limiting extension rod (8) is arranged at the front end and / or the back end of the fixed seat (3).
9. An in-oven roller barrel surface cleaning apparatus as claimed in any one of claims 1 to 6, wherein: The material of the roller friction seat (10) is polytetrafluoroethylene.