Gel felt lower surface glue scraping device

Abstract

The utility model relates to a glue scraping device for the lower surface of a gel felt. The glue scraping device comprises a rack, a first conveying belt mechanism, a second conveying belt mechanism, a grinding roller and a first scraper, the grinding roller is rotationally arranged on the rack and located between the first conveying belt mechanism and the second conveying belt mechanism. The first scraper is arranged on the rack, inclines from left to right and from bottom to top, and forms a first scraper angle with the conveying surface of the first conveying belt mechanism; the first scraper is located under the grinding roller and forms a glue scraping slit with the grinding roller, and the height of the glue scraping slit is smaller than the thickness of the gel felt. According to the utility model, the lower surface of the gel felt is subjected to glue scraping treatment by combining rolling and the scraper, so that the problem of effectively scraping redundant gel at the bottom under the condition of not damaging the structure of the aerogel felt is solved, the smoothness and the uniformity of a gel felt product are ensured, and the quality of the gel felt product is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of aerogel felt preparation, in particular to a gel scraping device on the lower surface of a gel felt. Background Art

[0002] When producing aerogel felt on a gel production line, the fiber felt is combined with the glue and gelled on a conveyor to obtain a wet gel felt. During the gelling process, due to the action of gravity, the glue flows vertically downward to the bottom of the wet gel felt, which can make the top surface of the gel felt smooth, with a good appearance and uniform gel. However, there will be excess glue residue at the bottom of the gel felt, resulting in an uneven gel at the bottom, which requires scraping off the excess gel. In the prior art, the following methods are usually used:

[0003] (1) The problem with this method is that the glue is scraped by roller before gelling. The problem is that excess glue will be squeezed out, and the ungelled glue will still move under the action of gravity, causing residual gel blocks at the bottom.

[0004] (2) After the gel dries, the excess aerogel is removed by cutting, scraping, etc., which has high labor costs.

[0005] In summary, how to effectively scrape off excess gel at the bottom without destroying the aerogel felt structure to ensure the flatness and uniformity of the gel felt product has become a key technical challenge.

[0006] Based on this, it is necessary to study a scraping device for the lower surface of gel felt. Utility Model Content

[0007] In view of this, the purpose of the present invention is to provide a gel scraping device for the lower surface of the gel felt, which can effectively solve the problem of effectively scraping off excess gel on the bottom without destroying the structure of the gel felt.

[0008] In order to achieve the above purpose, the technical solution adopted by the present utility model is:

[0009] A gel felt lower surface scraping device comprises a frame, a first conveyor belt mechanism, a second conveyor belt mechanism, a rolling roller and a first scraper;

[0010] The first conveyor belt mechanism and the second conveyor belt mechanism both convey from left to right, and the second conveyor belt mechanism is arranged at intervals on the right side of the first conveyor belt mechanism;

[0011] The laminating roller is rotatably mounted on the frame and is located between the first conveyor belt mechanism and the second conveyor belt mechanism;

[0012] The first scraper is arranged on the frame, and the scraping surface of the first scraper is inclined from left to right and from bottom to top and forms a first scraper angle with the conveying surface of the first conveyor belt mechanism;

[0013] The first scraper is located directly below the laminating roller and forms a scraping slit with the laminating roller, wherein the height of the scraping slit is less than the thickness of the gel felt;

[0014] The laminating roller is configured to press the gel felt entering the scraping slit from the first conveyor belt mechanism onto the first scraper, and the first scraper is configured to scrape the lower surface of the gel felt when the gel felt passes through the scraping slit.

[0015] Furthermore, it also includes a second scraper, which is arranged on the frame and located on the right side of the first scraper.

[0016] Furthermore, the upper end of the second scraper is higher than the upper end of the first scraper, and the scraping surface of the second scraper is inclined from left to right and from bottom to top and forms a second scraper angle with the conveying surface of the first conveyor belt mechanism, and the second scraper angle is greater than the first scraper angle.

[0017] Furthermore, it also includes a third scraper, which is arranged on the frame and located to the right of the second scraper, and the height of the upper end of the third scraper is greater than or equal to the upper end of the second scraper; the third scraper is inclined from left to right and from bottom to top, and forms a third scraper angle with the conveying surface of the first conveyor belt mechanism, and the third scraper angle is greater than or equal to the second scraper angle.

[0018] Furthermore, the frame is provided with vertical adjustment flat holes corresponding to the positions of the first scraper, the second scraper and the third scraper respectively. The first scraper, the second scraper and the third scraper are detachably connected to the frame through connecting parts and corresponding adjustment flat holes and can be adjusted up and down.

[0019] Furthermore, the scraping slit faces the conveying surface of the first conveyor belt mechanism.

[0020] Furthermore, the conveying surface of the second conveyor belt mechanism is tilted from left to right and from bottom to top, and the left end of the second conveyor belt mechanism is lower than the right end of the first conveyor belt mechanism.

[0021] Furthermore, the rolling roller includes a central shaft and a roller, both ends of the central shaft are arranged on a frame, and the roller is sleeved on the central shaft.

[0022] Furthermore, the frame is provided with vertically oriented elongated holes adapted to the two ends of the central shaft. The two ends of the central shaft are slidably arranged in the elongated holes and can rotate in the elongated holes. The roller is fixedly sleeved on the central shaft.

[0023] Furthermore, both ends of the central axis are fixedly connected to limit plates, and the limit plates are fitted with the outer surface of the frame.

[0024] The beneficial effects of the above technical solution are:

[0025] (1) The utility model conveys the gel felt into the scraping slit between the laminating roller and the first scraper through the first conveyor belt mechanism. The height of the scraping slit is less than the thickness of the gel felt. When the gel felt passes through the scraping slit, the laminating roller applies pressure to the gel felt, pressing the lower surface of the gel felt onto the first scraper so that the first scraper can scrape the gel on the lower surface of the gel felt. When the gel felt continues to move forward, the first scraper produces a scraping action relative to the lower surface of the gel felt, which can effectively scrape off excess gel on the lower surface of the gel felt. Finally, the gel felt after the scraping treatment is smoothly output through the second conveyor belt mechanism.

[0026] The upper surface of the gel felt and the rolling roller are in rolling contact, which can reduce the resistance of the upper surface of the gel felt, avoid damage to the upper surface of the gel felt due to direct sliding friction, and allow the gel felt to pass smoothly through the scraping slit; while the lower surface of the gel felt and the first scraper are in sliding contact, which can ensure that the first scraper effectively scrapes off excess gel on the lower surface of the gel felt.

[0027] The first scraper tilts from left to right and from bottom to top and forms a first scraper angle with the conveying surface of the first conveyor belt mechanism, so that a gradually shrinking necking structure is formed at the entrance of the scraper slit, so that the gel felt can smoothly enter the scraper slit.

[0028] In summary, the utility model combines roller pressing and scraper to perform glue scraping treatment on the lower surface of the gel felt, which solves the problem of how to effectively scrape off excess gel at the bottom without destroying the structure of the aerogel felt, ensures the flatness and uniformity of the gel felt product, and improves the quality of the gel felt product.

[0029] (2) The second scraper in the present invention plays a supporting and balancing role, and cooperates with the first scraper on its left side to smoothly transfer the gel felt sheet to the second conveyor belt mechanism, avoiding bending and deformation of the part of the gel felt after the glue scraping treatment. In addition, the second scraper can also perform a second glue scraping on the lower surface of the gel felt, supplementing the glue scraping effect of the first scraper and improving the effect of the glue scraping treatment.

[0030] (3) In the present invention, since there is no obstruction such as a rolling roller above the second scraper to generate pressure, the upper end of the second scraper is higher than the upper end of the first scraper, which can adapt to the thickness change of the gel felt and ensure the secondary scraping effect; the angle of the second scraper is greater than the angle of the first scraper, so that the gel felt can smoothly enter the range of the second scraper and ensure the continuity of feeding.

[0031] (4) The present invention also includes a third scraper, which is arranged on the frame and is located on the right side of the second scraper. The third scraper plays the same role as the second scraper, and can further ensure the smooth transportation of the gel felt and further improve the effect of the scraping treatment. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0033] Figure 2 for Figure 1 A partial enlarged view of point A in the middle;

[0034] Figure 3 It is a side view schematic diagram of the utility model;

[0035] Figure 4 for Figure 3 Cross-sectional view in the middle BB direction;

[0036] Figure 5 This is a schematic diagram of an embodiment of the present invention having a third scraper.

[0037] Figure numerals: 1 is a frame, 2 is a first conveyor belt mechanism, 3 is a second conveyor belt mechanism, 4 is a rolling roller, 5 is a first scraper, 6 is a second scraper, 7 is a third scraper, 8 is a limiting plate, 9 is a gel felt, 10 is a scraping slit, 101 is an adjusting flat hole, 102 is a long hole, 401 is a central axis, 402 is a roller, 501 is a first scraper angle, 601 is a second scraper angle, and 701 is a third scraper angle. DETAILED DESCRIPTION

[0038] The present invention is described in further detail below with reference to the accompanying drawings and specific embodiments:

[0039] Example 1. This example aims to provide a device for scraping glue on the lower surface of a gel felt, which is mainly used to scrape glue on the lower surface of the gel felt sheet after gelation, aiming at effectively scraping off excess gel on the bottom without destroying the structure of the aerogel felt.

[0040] A gel felt 9 lower surface scraping device, such as Figure 1-3 , including a frame 1, a first conveyor belt mechanism 2, a second conveyor belt mechanism 3, a laminating roller 4 and a first scraper 5.

[0041] The first conveyor belt mechanism 2 and the second conveyor belt mechanism 3 both transport from left to right to convey the gel felt 9, and the second conveyor belt mechanism 3 is arranged at intervals on the right side of the first conveyor mechanism; the specific structure and working principle of the first conveyor belt mechanism 2 and the second conveyor belt mechanism 3 both adopt existing technologies and will not be repeated here.

[0042] The frame 1 is erected above the first conveying mechanism and is mainly used to provide a fixed foundation for components such as the rolling roller 4 and the first scraper 5.

[0043] The laminating roller 4 is rotatably mounted on the frame 1 and is located between the first conveyor belt mechanism 2 and the second conveyor belt mechanism 3. In this embodiment, the laminating roller 4 includes a central shaft 401 and a roller 402. Both ends of the central shaft 401 are fixed to the frame 1, and the roller 402 is rotatably mounted on the central shaft 401.

[0044] The first scraper 5 is arranged on the frame 1. The first scraper 5 is located directly below the laminating roller 4 and forms a scraping slit 10 with the laminating roller 4. The height of the scraping slit 10 is 0.1-0.4 mm less than the thickness of the gel felt 9. Since the gel felt 9 has a certain elasticity and the gel blocks adhere to the lower surface of the felt body, when the gel felt 9 passes through the scraping slit 10, the laminating roller 4 applies pressure to the gel felt 9, pressing the lower surface of the gel felt 9 onto the first scraper 5. When the gel felt 9 continues to move forward, the first scraper 5 produces a scraping action relative to the lower surface of the gel felt 9, thereby scraping off the gel on the lower surface of the gel felt 9.

[0045] The scraping surface of the first scraper 5 is inclined from left to right and from bottom to top and forms a first scraper angle 501 with the conveying surface of the first conveyor belt mechanism 2; the first scraper angle 501 is an acute angle of 30-60 degrees, and the specific angle data needs to be adjusted according to actual conditions. The first scraper angle 501 forms a gradually shrinking necking structure at the entrance of the scraping slit 10, so that the gel felt 9 can smoothly enter the scraping slit 10.

[0046] Furthermore, this embodiment further includes a second scraper 6, which is disposed on the frame 1 and to the right of the first scraper 5. The second scraper 6 maintains a distance of 4-5 cm from the first scraper 5. The second scraper 6 provides support and balance, and cooperates with the first scraper 5 on its left side to smoothly transfer the gel felt 9 to the second conveyor belt mechanism 3, thereby preventing the portion of the gel felt 9 from bending or deforming after the scraping process. In addition, the second scraper 6 can also perform a secondary scraping process on the lower surface of the gel felt 9, supplementing the scraping action of the first scraper 5 and improving the scraping effect. In other embodiments, the second scraper 6 may not be provided.

[0047] Furthermore, the upper end of the second scraper 6 is higher than the upper end of the first scraper 5, with the specific height difference within 1mm. The scraping surface of the second scraper 6 tilts from left to right and from bottom to top, forming a second scraper angle 601 with the conveying surface of the first conveyor belt mechanism 2. The second scraper angle 601 is greater than the first scraper angle. Because there is no pressing roller 4 above the second scraper 6 to provide pressure, the upper end of the second scraper 6 is higher than the upper end of the first scraper 5, which can adapt to the thickness changes of the gel felt 9 and ensure a secondary scraping effect. The second scraper angle 601 is greater than the first scraper angle to facilitate the smooth entry of the gel felt 9 into the range of the second scraper 6, ensuring continuous feeding.

[0048] Further, such as Figure 3In order to facilitate the vertical position adjustment of the first scraper 5 to adapt to gel felts 9 of different thicknesses, the frame 1 is provided with vertical adjustment flat holes 101 corresponding to the positions of the first scraper 5 and the second scraper 6 respectively. The first scraper 5 and the second scraper 6 are detachably connected to the frame 1 through connecting pieces and corresponding adjustment flat holes 101 respectively and can be adjusted up and down. The connecting pieces are bolt kits.

[0049] Furthermore, in order to facilitate the gel felt 9 to smoothly enter the scraper slit 10, the entrance of the scraper slit 10 faces the conveying surface of the first conveyor belt mechanism 2. When the gel felt 9 is conveyed to the entrance of the scraper slit 10, it can enter the scraper slit 10.

[0050] Furthermore, the conveying surface of the second conveyor belt mechanism 3 is tilted from left to right and from bottom to top, and the left end of the second conveyor belt mechanism 3 is located below the first scraper 5 to smoothly receive the gel felt 9 after the scraping treatment.

[0051] Example 2: This example is basically the same as Example 1, except that a third scraper 7 is further provided. This example further illustrates the structure.

[0052] In this embodiment, Figure 5 The third scraper 7 is arranged on the frame 1 and is located on the right side of the second scraper 6, and the third scraper 7 maintains a distance of 4-5 cm from the second scraper 6; the third scraper 4 is also detachably connected to the frame 1 through a connecting piece and a corresponding adjusting flat hole 101 and can be adjusted up and down; the upper end of the third scraper 7 is higher than the upper end of the second scraper 6, and the specific height difference is within 1 mm; the third scraper 7 tilts from left to right and from bottom to top and forms a third scraper angle 701 with the conveying surface of the first conveyor belt mechanism 2, and the third scraper angle 701 is greater than the second scraper angle 601, so that the third scraper 7 is further raised and tilted; the third scraper 7 plays the same role as the second scraper 6, which can further ensure the smooth transportation of the gel felt 9 and further improve the effect of the scraping treatment.

[0053] In other embodiments, the upper end of the third scraper 7 may also be flush with the upper end of the second scraper 6 , and the third scraper angle 701 may also be equal to the second scraper angle 601 .

[0054] Example 3. This example is basically the same as Example 1, except that the upper rolling roller 4 is set to float up and down, and applies pressure to the gel felt 9 by its own gravity. The pressure should be able to scrape the lower surface without crushing the gel. In this example, the weight of the rolling roller 4 is between 400g and 600g, preferably 480g. This example further illustrates the structure.

[0055] In this embodiment, Figure 4The frame 1 is provided with a vertically oriented long hole 102 adapted to the two ends of the central shaft 401. The two ends of the central shaft 401 are slid up and down in the long hole 102 and can rotate in the long hole 102. The roller 402 is fixedly mounted on the central shaft 401, so that the rolling roller 4 can float up and down and change its position up and down by its own gravity, thereby adapting to gel felt 9 of different thicknesses.

[0056] Further, such as Figure 4 Both ends of the central axis 401 are fixedly connected with a limit plate 8. The limit plate 8 fits the outer surface of the frame 1 but does not affect the up and down floating of the rolling roller 4. It is mainly used to prevent the rolling roller 4 from tilting.

Claims

1. A gel felt lower surface scraping device, characterized in that: It comprises a frame (1), a first conveyor belt mechanism (2), a second conveyor belt mechanism (3), a rolling roller (4) and a first scraper (5); The first conveyor belt mechanism (2) and the second conveyor belt mechanism (3) both convey from left to right, and the second conveyor belt mechanism (3) is arranged at intervals on the right side of the first conveyor belt mechanism; The laminating roller (4) is rotatably mounted on the frame (1) and is located between the first conveyor belt mechanism (2) and the second conveyor belt mechanism (3); The first scraper (5) is arranged on the frame (1), and the scraping surface of the first scraper (5) is inclined from left to right and from bottom to top, and forms a first scraper angle (501) with the conveying surface of the first conveyor belt mechanism (2); The first scraper (5) is located directly below the laminating roller (4) and forms a scraping slit (10) with the laminating roller (4), and the height of the scraping slit (10) is less than the thickness of the gel felt (9); The laminating roller (4) is configured to press the gel felt (9) entering the scraping slit (10) from the first conveyor belt mechanism (2) onto the first scraper (5), and the first scraper (5) is configured to scrape the lower surface of the gel felt (9) when the gel felt (9) passes through the scraping slit (10).

2. A gel felt lower surface scraping device according to claim 1, characterized in that: It also includes a second scraper (6), which is arranged on the frame (1) and located on the right side of the first scraper (5).

3. The gel felt lower surface scraping device according to claim 2, characterized in that: The upper end of the second scraper (6) is higher than the upper end of the first scraper (5); the scraping surface of the second scraper (6) is inclined from left to right and from bottom to top, and forms a second scraper angle (601) with the conveying surface of the first conveyor belt mechanism (2), and the second scraper angle (601) is greater than the first scraper angle (501).

4. The gel felt lower surface scraping device according to claim 3, characterized in that: The third scraper (7) is also included. The third scraper (7) is arranged on the frame (1) and is located on the right side of the second scraper (6). The height of the upper end of the third scraper (7) is greater than or equal to the upper end of the second scraper (6). The third scraper (7) is inclined from left to right and from bottom to top and forms a third scraper angle (701) with the conveying surface of the first conveyor belt mechanism (2). The third scraper angle (701) is greater than or equal to the second scraper angle (601).

5. The gel felt lower surface scraping device according to claim 4, characterized in that: The frame (1) is provided with vertically oriented adjustment flat holes (101) corresponding to the positions of the first scraper (5), the second scraper (6) and the third scraper (7), respectively. The first scraper (5), the second scraper (6) and the third scraper (7) are detachably connected to the frame (1) via connecting pieces and the corresponding adjustment flat holes (101), and can be adjusted up and down.

6. A gel felt lower surface scraping device according to any one of claims 1 to 5, characterized in that: The scraping slit (10) faces the conveying surface of the first conveyor belt mechanism (2).

7. A gel felt lower surface scraping device according to any one of claims 1 to 5, characterized in that: The conveying surface of the second conveyor belt mechanism (3) is arranged to be inclined from left to right and from bottom to top, and the left end of the second conveyor belt mechanism (3) is lower than the right end of the first conveyor belt mechanism (2).

8. A gel felt lower surface scraping device according to any one of claims 1 to 5, characterized in that: The rolling roller (4) comprises a central shaft (401) and a roller (402), both ends of the central shaft (401) are arranged on the frame (1), and the roller (402) is sleeved on the central shaft (401).

9. The device for scraping the lower surface of the gel felt according to claim 8, characterized in that: The frame (1) is provided with vertically oriented elongated holes (102) adapted to the two ends of the central shaft (401). The two ends of the central shaft (401) are slidably arranged in the elongated holes (102) and can rotate in the elongated holes (102). The roller (402) is fixedly sleeved on the central shaft (401).

10. The gel felt lower surface scraping device according to claim 9, characterized in that: Both ends of the central shaft (401) are fixedly connected to a limit plate (8), and the limit plate (8) is in contact with the outer surface of the frame (1).

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