A fixing structure of a doctor blade for a roll press

Abstract

The utility model discloses a kind of scraper fixing structure of roll press equipment, including mounting seat, slide rail is set on the mounting seat, slide block is installed in the slide rail, the slide block is fixedly connected with scraper, first guide rod and second guide rod are fixedly installed on the mounting seat, first guide rod and second guide rod are arranged in parallel;First limit plate and second limit plate are slidably installed on first guide rod and second guide rod, first limit plate and second limit plate are respectively located at the outside of the two ends of scraper, first limit plate and second limit plate are clamped and fixed to scraper by nut locking;The utility model is slid to the two ends of scraper by first limit plate and second limit plate on guide rod, form the mechanical hard clamping of horizontal direction by nut locking, exert uniform pressure on the two ends of scraper by limit plate, completely eliminate the displacement risk caused by vibration, guarantee the stability of scraper in use process.

Description

Technical Field

[0001] This utility model belongs to the technical field of cleaning mechanism improvement for roller press equipment, and specifically relates to a scraper fixing structure for roller press equipment. Background Technology

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

[0003] Roll forming equipment is a core piece of equipment in lithium-ion battery production, mainly used for compacting coated electrode sheets. Its working principle involves applying high pressure to the electrode sheets using a pair of high-strength rollers, causing the negative electrode carbon powder to adhere tightly to the current collector (copper foil / aluminum foil), thereby improving the electrode's energy density and mechanical stability. During the rolling process, due to the poor adhesion of the carbon powder, some powder adheres to the surface of the main roller. If not removed in time, this can lead to defects such as indentations and uneven thickness in subsequent electrode sheets.

[0004] The scraper is a cleaning component of a roll forming machine, typically made of hard alloy or polyurethane. Installed near the main roll, its core function is to scrape away residual carbon powder from the main roll surface, ensuring a clean roll surface and preventing contamination of subsequent electrode sheets. Existing scraper fixing structures on roll forming equipment include... Figure 1 As shown, the scraper 3 is fixed on the slider 2, and the slider 4 is slidably installed in the slide rail 2 of the mounting base 1. The slider 4 can drive the scraper 3 to move along the slide rail 2. When cleaning the toner on the main roller, the scraper 3 is moved to a position corresponding to the surface of the main roller. By tightening the bolt 5, the end of the bolt 5 presses against the slider, preventing the scraper 3 from moving during the cleaning of the main roller surface. The above scraper fixing structure has the following problems in use: In order to enable the slider to slide in the slide rail, the space dimension inside the slide rail is usually slightly larger than the slider dimension. Relying solely on the bolt to press the slider can easily cause the bolt to loosen, posing a risk of sliding during use. After the scraper mechanism slides, it may not fit tightly against the main roller, resulting in incomplete scraping of toner and affecting the quality of the electrode sheet after rolling. In addition, when the bolt presses against the slider, uneven force on the slider may cause the scraper to tilt, affecting the cleaning effect of toner. Utility Model Content

[0005] The purpose of this invention is to provide a scraper fixing structure for a roller pressing equipment. By applying uniform pressure to both ends of the scraper through a limiting plate, the risk of displacement caused by vibration is completely eliminated, ensuring the stability of the scraper during use.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: In a first aspect, embodiments of this utility model provide a scraper fixing structure for a roller press, including a mounting base, a slide rail on the mounting base, a slider installed in the slide rail, the slider being fixedly connected to the scraper, a first guide rod and a second guide rod fixedly installed on the mounting base, the first guide rod and the second guide rod being arranged in parallel; a first limiting plate and a second limiting plate are slidably installed on both the first guide rod and the second guide rod, the first limiting plate and the second limiting plate being located on the outer sides of both ends of the scraper, the first limiting plate and the second limiting plate being clamped and fixed to the scraper by locking with nuts.

[0007] As a further technical solution, the first limiting plate is provided with two circular holes for the first guide rod and the second guide rod to pass through, respectively. The second limiting plate is provided with two circular holes for the first guide rod and the second guide rod to pass through, respectively.

[0008] As a further technical solution, the first limiting plate and the second limiting plate are arranged in parallel.

[0009] As a further technical solution, the mounting base is a C-shaped mounting base with the opening facing the scraper side and a slide rail installed inside the opening.

[0010] As a further technical solution, the first guide rod is located above the opening of the mounting base, and the second guide rod is located below the opening of the mounting base.

[0011] As a further technical solution, the nut is threaded onto the first guide rod and the second guide rod.

[0012] As a further technical solution, the mounting base is provided with a threaded hole, and a bolt is installed in the threaded hole, the end of the bolt pressing the slider.

[0013] As a further technical solution, the scraper is arranged parallel to the axis of the main roller.

[0014] As a further technical solution, the scraper is made of polyurethane, polyester or polyether material.

[0015] As a further technical solution, the lengths of both the first guide rod and the second guide rod are greater than the length of the scraper.

[0016] The beneficial effects of the above-described embodiments of this utility model are as follows: This invention uses a first limiting plate and a second limiting plate that slide on a guide rod to both ends of the scraper. After these plates slide to the ends of the scraper, they are locked with nuts to form a horizontal mechanical clamp. The limiting plates apply uniform pressure to both ends of the scraper, completely eliminating the risk of displacement caused by vibration and ensuring the stability of the scraper during use.

[0017] In this invention, a first guide rod and a second guide rod are arranged in parallel. The guide rods are slidably connected to the limiting plate. The two guide rods ensure that the limiting plate moves horizontally during its movement. When the two limiting plates clamp the scraper, the scraper will not tilt.

[0018] This invention uses two limiting plates to achieve horizontal clamping and bolts to achieve vertical clamping, thus fixing the scraper from two directions and significantly improving the stability of the scraper under dynamic working conditions. At the same time, each limiting plate is locked with two nuts, so even if the bolts loosen or a nut in one place becomes loose, the scraper position can still be maintained.

[0019] In use, this utility model first uses the first limiting plate and the second limiting plate to press and fix both ends of the scraper, and then uses bolts to press and fix the scraper. This can avoid the problem of the scraper tilting due to uneven force on the slider when the bolts press the slider. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a schematic diagram of the existing scraper fixing structure; Figure 2 This is a schematic diagram of the scraper fixing structure of this utility model.

[0022] The diagram is for illustrative purposes only. The components are: 1. Mounting base; 2. Slide rail; 3. Scraper; 4. Slider; 5. Bolt; 6. First guide rod; 7. Second guide rod; 8. First limiting plate; 9. Nut; 10. Threaded hole; 11. Second limiting plate. Detailed Implementation

[0023] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0024] Example 1 In a typical embodiment of this utility model, such as Figure 2As shown, a fixing structure for a scraper 3 in a roller press is provided, including a mounting base 1, a slide rail 2 on the mounting base 1, a slider 4 installed in the slide rail 2, the slider 4 being fixedly connected to the scraper 3, a first guide rod 6 and a second guide rod 7 fixedly installed on the mounting base 1, the first guide rod 6 and the second guide rod 7 being arranged in parallel; a first limiting plate 8 and a second limiting plate 11 are slidably installed on the first guide rod 6 and the second guide rod 7, the first limiting plate 8 and the second limiting plate 11 being located on the outer sides of both ends of the scraper 3, the first limiting plate 8 and the second limiting plate 11 being locked with nuts 9 to clamp and fix the scraper 3.

[0025] Understandably, the first guide rod 6 and the second guide rod 7 provide guidance for the movement of the first limiting plate 8 and the second limiting plate 11. After the scraper 3 moves to the appropriate position, the first limiting plate 8 and the second limiting plate 11 can be moved to fit against both ends of the scraper 3, and the movement of the first limiting plate 8 and the second limiting plate 11 is restricted by the nut 9, thus achieving clamping and fixing of the scraper 3 by the first limiting plate 8 and the second limiting plate 11. The first guide rod 6 and the second guide rod 7 are arranged in parallel, providing a stable sliding path, ensuring the straightness of the limiting plate movement, and reducing the risk of skewing. The limiting plates are located at both ends of the scraper 3 and are locked by the nut 9 to form a rigid clamp, achieving fixed clamping of the scraper 3 in the horizontal direction. Compared with the existing clamping by only tightening with bolts 5, this ensures the stability of the scraper 3 during use.

[0026] In this embodiment, the first limiting plate 8 has two circular holes for the first guide rod 6 and the second guide rod 7 to pass through, respectively. The second limiting plate 11 has two circular holes for the first guide rod 6 and the second guide rod 7 to pass through, respectively. Furthermore, the first limiting plate 8 and the second limiting plate 11 are arranged in parallel.

[0027] Understandably, the inner diameter of the circular hole on the limiting plate is slightly larger than the outer diameter of the guide rod, ensuring that the limiting plate can slide on the guide rod. The limiting plate can be adjusted according to the working position of the scraper 3, thereby ensuring that the scraper 3 is always between the first limiting plate 8 and the second limiting plate 11. The first limiting plate 8 and the second limiting plate 11 are arranged in parallel to ensure that when the first limiting plate 8 and the second limiting plate 11 clamp the scraper 3, the distance between the entire blade of the scraper 3 and the surface of the main roller is equal, and the scraper 3 will not tilt. This ensures that the carbon powder cleaning effect on the surface of the main roller can be achieved, while avoiding excessive contact between the blade of the scraper 3 and the surface of the main roller, which could cause damage.

[0028] In this embodiment, the mounting base 1 is a C-shaped mounting base 1, with its opening facing the scraper 3. A slide rail 2 is installed inside the opening of the mounting base 1. It is understood that the mounting base 1 is the same as existing structures. The mounting base 1 is fixed to the support of the roller pressing equipment. The mounting base 1 is equipped with a slide rail 2, and a slider 4 is installed inside the slide rail 2. The slider 4 is fixedly connected to the scraper 3. When the slider 4 moves within the slide rail 2 of the mounting base 1, it can drive the scraper 3 to move along the slide rail 2. The scraper 3 is generally located above the main roller and parallel to its axis. Before using the scraper 3, it may be misaligned with the main roller. The slider 4 and the slide rail 2 are used to align the scraper 3 with the main roller, and then the scraper 3 is fixed. Thus, when the main roller rotates, the scraper 3 can scrape off the carbon powder on the main roller. Both the slide rail 2 and the slider 4 adopt existing structures. As long as the slider 4 can move within the slide rail 2, it is acceptable. For example, a protrusion can be set on the slider 4 and a groove can be set in the slide rail 2. The sliding between the two can be achieved through the cooperation of the groove and the protrusion.

[0029] Furthermore, the first guide rod 6 is located above the opening of the mounting base 1, and the second guide rod 7 is located below the opening of the mounting base 1. It can be understood that the opening of the mounting base 1 mentioned here refers to the slide rail 2 on the mounting base 1. The first guide rod 6 is located above the slide rail 2 of the mounting base 1, and the second guide rod 7 is located below the slide rail 2 of the mounting base 1. The first guide rod 6 and the second guide rod 7 are fixedly connected to the mounting base 1 and will not move relative to each other. Furthermore, the arrangement of the first guide rod 6 and the second guide rod 7 will not affect the normal movement of the slider 4 and the scraper 3.

[0030] In addition, the lengths of the first guide rod 6 and the second guide rod 7 are both greater than the length of the scraper 3, which can provide sufficient sliding space for the movement of the limiting plate. Therefore, the setting of the limiting plate will not affect the normal movement of the slider 4 and the scraper 3.

[0031] In this embodiment, the nut 9 is threaded onto the first guide rod 6 and the second guide rod 7. It is understood that the guide rods are threaded near their ends, while the limiting plate is not threaded at the points where it slides on the guide rods. The threads engage with the nut 9, allowing the nut 9 to lock the limiting plate, while the unthreaded areas facilitate the sliding of the limiting plate. Alternatively, threads can be provided on the entire guide rod; in this case, it is sufficient to ensure that the inner diameter of the circular hole on the limiting plate is slightly larger than the outer diameter of the thread on the guide rod, so that the guide rod and the limiting plate remain in a sliding connection, while the guide rod and the nut 9 are in a threaded connection.

[0032] In this embodiment, the mounting base 1 is provided with a threaded hole 10, and a bolt 5 is installed in the threaded hole 10. The end of the bolt 5 presses against the slider 4. It is understood that the existing structure of pressing the slider 4 with the end of the bolt 5 can be retained. This allows the bolt 5 to press the scraper 3 vertically, and the first limiting plate 8 and the second limiting plate 11 to press the scraper 3 horizontally. Even if the bolt 5 loosens, it will not affect the stability of the scraper 3 during use. In addition, considering that when the bolt 5 presses against the slider 4, the scraper 3 may tilt due to uneven force on the slider 4 (for example, after adjusting the position of the scraper 3, the bolt 5 may not be pressing the middle position of the slider 4, which will lead to uneven force on the slider 4. Since the space volume inside the mounting base 1 is generally larger than the volume of the slider 4, the slider 4 may have one end tilted up, and the scraper 3 will tilt). In use, the first limiting plate 8 and the second limiting plate 11 are used to press and fix both ends of the scraper 3 first, and then the bolt 5 is used to press and fix the scraper 3.

[0033] In this embodiment, the scraper 3 is made of polyurethane, polyester, or polyether. A polyurethane scraper 3 is preferred, as it has good elasticity and wear resistance, effectively reducing production costs caused by scraper wear. Simultaneously, the polyurethane scraper 3 has good chemical resistance, resisting the corrosion of the scraper 3 by chemicals in the battery. A polyester scraper 3 has good elasticity and wear resistance, but its chemical properties are slightly inferior to those of the polyurethane scraper 3. Because corrosive chemicals are used in lithium battery production, the polyester scraper 3 has a shorter service life and is easily corroded by these chemicals. A polyether scraper 3 has excellent chemical and high-temperature performance, but due to its high hardness, it easily scratches and damages the positive and negative electrode sheets.

[0034] When using the scraper 3, it is fixed as follows: First, move the scraper 3 to a suitable position by moving the slider 4, so that the scraper 3 corresponds to the position of the main roller. Then, adjust the positions of the first limiting plate 8 and the second limiting plate 11 so that they fit against both ends of the scraper 3. Next, tighten the nut 9 on the guide rod to clamp and fix the scraper 3 horizontally with the first limiting plate 8 and the second limiting plate 11. Finally, tighten the bolt 5 to press and fix the scraper 3 vertically. When the main roller rotates, the scraper 3 can remove excess carbon powder from the surface of the main roller.

[0035] It should be noted that this embodiment does not involve structural improvements to the roller pressing equipment, main roller structure, etc., except for the fixed structure of the scraper 3, all of which are existing technologies.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A scraper fixing structure for a roller press, comprising a mounting base, a slide rail disposed on the mounting base, a slider installed inside the slide rail, and the slider being fixedly connected to the scraper, characterized in that, The mounting base is fixedly installed with a first guide rod and a second guide rod, which are arranged in parallel. A first limiting plate and a second limiting plate are slidably installed on both the first and second guide rods. The first limiting plate and the second limiting plate are located on the outer sides of both ends of the scraper, and the first limiting plate and the second limiting plate are clamped and fixed to the scraper by locking with nuts.

2. The scraper fixing structure of the roller pressing equipment as described in claim 1, characterized in that, The first limiting plate has two round holes for the first guide rod and the second guide rod to pass through, respectively. The second limiting plate has two round holes for the first guide rod and the second guide rod to pass through, respectively.

3. The scraper fixing structure of the roller pressing equipment as described in claim 1, characterized in that, The first limiting plate and the second limiting plate are arranged in parallel.

4. The scraper fixing structure of the roller pressing equipment as described in claim 1, characterized in that, The mounting base is a C-shaped mounting base with its opening facing the scraper side, and a slide rail is installed inside the opening of the mounting base.

5. The scraper fixing structure of the roller pressing equipment as described in claim 4, characterized in that, The first guide rod is located above the mounting base opening, and the second guide rod is located below the mounting base opening.

6. The scraper fixing structure of the roller pressing equipment as described in claim 1, characterized in that, The nut is threaded onto the first guide rod and the second guide rod.

7. The scraper fixing structure of the roller pressing equipment as described in claim 1, characterized in that, The mounting base is provided with a threaded hole, and a bolt is installed in the threaded hole. The end of the bolt presses against the slider.

8. The scraper fixing structure of the roller pressing equipment as described in claim 1, characterized in that, The scraper is arranged parallel to the axis of the main roller.

9. The scraper fixing structure of the roller pressing equipment as described in claim 1, characterized in that, The scraper is made of polyurethane, polyester, or polyether material.

10. The scraper fixing structure of the roller pressing equipment as described in claim 1, characterized in that, The lengths of both the first guide rod and the second guide rod are greater than the length of the scraper.

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