Non-asbestos plate forming device for preventing slurry from sticking to roll

Abstract

The utility model discloses a kind of non-asbestos board is used with anti-slurry stick roll device, including forming die, the side surface of forming die is equipped with moving plate by moving mechanism, and equal interval is equipped with press roll assembly and cleaning mechanism in moving plate lower, moving plate middle part is also equipped with feeding assembly, and one end of forming die is provided with collecting hopper, and collecting hopper is matched with cleaning mechanism.The utility model cleaning mechanism is corresponded one to one with press roll by the scraper of inclination arrangement, can scrape the slurry adhered on its surface when press roll rotates, avoid slurry to remain on press roll;With air-blast device, further auxiliary scraping slurry flows to forming die along scraper, prevent slurry to remain on scraper, effectively reduce slurry waste and realize the reuse of adhered slurry.

Description

Technical Field

[0001] This utility model relates to the field of asbestos-free board sheet processing technology, specifically to an anti-slurry sticking roller device for asbestos-free board sheet processing. Background Technology

[0002] Asbestos-free boards refer to a general term for boards that do not contain asbestos. The main types include asbestos-free sheet boards, asbestos-free compressed boards, and asbestos-free rubber boards, among other non-asbestos-based materials. These boards can be processed into various shapes through stamping, shearing, and other techniques using molds or various processing tools. They are widely used in the petroleum, chemical, pharmaceutical, shipbuilding, and automotive industries, and are gradually gaining market recognition and wider application. The asbestos-free board sheet forming process (the core process from raw materials to board shaping) involves key steps such as raw material processing, pulping, shaping, dewatering, and drying. The shaping stage requires the use of pressure rollers to squeeze and dewater the pulp, providing a foundation for subsequent drying processes.

[0003] However, in the extrusion and dewatering process of asbestos-free board forming, the existing pressure rollers have obvious technical defects: because the slurry itself contains moisture, and the binders added inside (such as latex, resin, etc.) will have a certain stickiness in the wet state, the slurry is easy to adhere to the surface of the pressure roller during the extrusion and dewatering process; the adhesion of the slurry will not only reduce the extrusion and dewatering efficiency of the pressure roller, but also cause waste of slurry resources, thereby affecting the overall production efficiency and material utilization rate of the asbestos-free board forming process. Utility Model Content

[0004] The purpose of this invention is to provide a device for preventing slurry from sticking to rollers when forming asbestos-free boards, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for preventing slurry from sticking to asbestos-free board sheets, comprising a forming mold, a moving plate provided on the periphery of the forming mold via a moving mechanism, a pressure roller assembly and a cleaning mechanism provided at equal intervals below the moving plate, a feeding assembly provided in the middle of the moving plate, and a collection hopper provided at one end of the forming mold, the collection hopper being matched with the cleaning mechanism.

[0006] Preferably, in order to facilitate the movement of the pressure roller assembly and the cleaning mechanism, and to facilitate the extrusion and dewatering of the slurry in the molding die, the moving mechanism includes electric push rods equidistantly arranged on the periphery of the molding die, and a fixing block is fixedly provided at the output end of the electric push rod.

[0007] Preferably, in order to facilitate the movement of the pressure roller assembly and cleaning mechanism and to facilitate the extrusion and dewatering of the slurry in the molding die, the moving mechanism also includes a linear guide rail device disposed between two fixed blocks on the same side. The linear guide rail device is provided with guide rail sliders, and the two guide rail sliders are fixedly connected to the moving plate through a connecting block.

[0008] Preferably, in order to facilitate multiple extrusions and dewatering of the slurry in the molding die to ensure the dewatering effect and facilitate subsequent drying and other processing, the pressure roller assembly includes mounting plates equidistantly arranged under the moving plate, a rotating rod rotatably provided between the two mounting plates at the same end, and a pressure roller provided outside the rotating rod.

[0009] Preferably, in order to clean the pressure rollers during the extrusion and dewatering process, and to allow the adhered slurry to flow back into the molding die for further extrusion and dewatering to avoid waste, the cleaning mechanism includes rectangular blocks equidistantly arranged under the moving plate, with scrapers inclined between two rectangular blocks at the same end, and the scrapers corresponding one-to-one with the pressure rollers.

[0010] Preferably, in order to facilitate the scraping of slurry from flowing down the scraper and avoid residue, the cleaning mechanism also includes a blower device installed on the moving plate. The output end of the blower device is provided with a connecting pipe, which passes through the moving plate and extends downward. The bottom end of the connecting pipe is provided with an air outlet pipe, and air outlets are evenly spaced on the air outlet pipe, which are matched with the scraper.

[0011] Preferably, in order to replenish the slurry in the molding die according to the actual situation without affecting the molding effect, the feeding component includes a storage box set on the moving plate, a feeding pipe equidistantly arranged below the storage box, a feeding hopper at the bottom of the feeding pipe, and a feeding pipe at the top of the storage box.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] (1) The cleaning mechanism uses a scraper that is inclined and corresponds to the pressure roller. When the pressure roller rotates, it can scrape off the slurry adhering to its surface, thus avoiding the slurry residue on the pressure roller. With the help of the blower, the scraper area is blown through the air outlet, which further assists the scraped slurry to flow along the scraper into the molding die, preventing the slurry residue on the scraper, effectively reducing slurry waste and realizing the reuse of the adhering slurry.

[0014] (2) The pressure roller assembly drives the pressure roller to rotate through the rotating rod. During the extrusion dewatering process, it can assist the slurry dewatering and improve the dewatering efficiency. At the same time, the equidistant arrangement of multiple sets of pressure rollers can realize multiple extrusions of the slurry to ensure the dewatering effect and provide quality assurance for subsequent drying and other processing steps. The moving mechanism can realize the stable up and down and horizontal movement of the moving plate, thereby driving the pressure roller assembly and the cleaning mechanism to move synchronously, ensuring uniform contact between the pressure roller and the slurry in the forming mold and precise control of the extrusion dewatering operation, providing a stable motion basis for the dewatering process.

[0015] (3) The feeding component can add slurry to the molding die according to the actual extrusion molding situation, so as to avoid the molding quality of the asbestos-free board wet blank due to insufficient slurry, and ensure the structural integrity and performance stability of the final product; the collection hopper set at one end of the molding die is matched with the cleaning mechanism, which can collect the slurry scraped off by the scraper when the pressure roller moves to the end, which is convenient for subsequent recycling and reuse, further improving the slurry utilization rate and reducing material loss in the production process. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an anti-slurry sticking roller device for asbestos-free board sheet forming proposed in this utility model;

[0017] Figure 2 This is a partial structural diagram of the moving mechanism and the moving plate in an anti-slurry sticking roller device for asbestos-free board sheet forming proposed in this utility model;

[0018] Figure 3 This is a schematic diagram of the material feeding component in an anti-slurry sticking roller device for asbestos-free board sheet forming proposed in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure on the moving plate in the anti-slurry sticking roller device for asbestos-free board sheet forming proposed in this utility model;

[0020] Figure 5 This is a schematic diagram of the pressure roller assembly and cleaning mechanism in an anti-slurry sticking roller device for asbestos-free board sheet forming proposed in this utility model.

[0021] In the diagram: 11. Molding mold; 12. Collection hopper; 13. Electric push rod; 14. Fixing block; 15. Linear guide rail device; 16. Guide rail slider; 21. Moving plate; 22. Connecting block; 31. Storage box; 32. Feeding hopper; 33. Discharge pipe; 34. Feeding pipe; 41. Mounting plate; 42. Rotating rod; 43. Pressure roller; 51. Rectangular block; 52. Scraper; 53. Blower; 54. Connecting pipe; 55. Air outlet pipe; 56. Air outlet. 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] Please see Figures 1-5This utility model provides an embodiment of an anti-slurry sticking roller device for asbestos-free board sheet forming, comprising a forming mold 11. Asbestos-free board slurry is injected into the forming mold 11, and squeezed and dehydrated by pressure rollers 43 to form a thicker wet blank. This is then dried and cured to complete the asbestos-free board forming process. The circumferential side of the forming mold 11 is equipped with a moving plate 21 via a moving mechanism, facilitating the up-and-down movement of the moving plate 21. This movement, in turn, moves the pressure roller 43 assembly and a cleaning mechanism, allowing for convenient squeezing and dehydration of the slurry by the pressure rollers 43, while the cleaning mechanism cleans the pressure rollers 43. To prevent the slurry from adhering to the pressure roller 43, the moving mechanism includes electric push rods 13 equidistantly arranged on the sides of the forming mold 11. The output end of the electric push rod 13 is fixedly provided with a fixing block 14. It also includes a linear guide rail device 15 arranged between two fixing blocks 14 on the same side. The linear guide rail device 15 is provided with a guide rail slider 16, which can be driven by a linear motor or other means to realize the reciprocating movement of the guide rail slider 16 on the linear guide rail device 15. This is a relatively mature technology and will not be described in detail here. The two guide rail sliders 16 are fixedly connected to the moving plate 21 through a connecting block 22.

[0024] Please see Figures 1-5To facilitate the extrusion and dewatering of the slurry and to facilitate the cleaning of the pressure rollers 43, preventing slurry from adhering to them, and to allow for slurry replenishment as needed, ensuring the quality of the asbestos-free board extrusion molding, pressure roller 43 assemblies and a cleaning mechanism are equidistantly arranged under the moving plate 21. The pressure roller 43 assembly includes mounting plates 41 equidistantly arranged under the moving plate 21. A rotating rod 42 is rotatably connected between two mounting plates 41 at the same end. One end of the rotating rod 42 can be connected to a drive device, such as a motor (not shown in the figure). During extrusion and dewatering, the drive device can also rotate the pressure rollers 43 to assist in extrusion and dewatering. This is a relatively mature technology. The technique, which will not be elaborated here, involves a pressure roller 43 located outside the rotating rod 42. The cleaning mechanism includes rectangular blocks 51 equidistantly arranged under the moving plate 21. Scrapers 52 are inclinedly positioned between two rectangular blocks 51 at the same end, with each scraper 52 corresponding to a pressure roller 43. The number of pressure rollers 43 and scrapers 52 can be two, three, or four sets, preferably two sets, to facilitate thorough extrusion, dewatering, and molding of the slurry, and to facilitate subsequent drying and other processing. The inclined arrangement of the scrapers 52 allows them to scrape away the slurry on the surface of the pressure roller 43, and also allows the scraped slurry to fall along the scrapers 52 to the front of the pressure roller 43 for further processing. The material is further squeezed and dehydrated. At the final stage, the scraped slurry can be recovered via the collection hopper 12. The cleaning mechanism also includes a blower 53 mounted on the moving plate 21. The blower 53 can be a blower or similar device. The output end of the blower 53 has a connecting pipe 54 that passes through the moving plate 21 and extends downwards. The bottom end of the connecting pipe 54 has an air outlet 55 with evenly spaced air outlets 56 that match the scraper 52. Air is introduced by the blower to sweep the area above the scraper 52, helping to prevent the scraped slurry from flowing down the scraper 52. The moving plate 21 is also equipped with a feeding component in the middle. The feeding component includes a storage box 31 set on the moving plate 21, which contains slurry. The storage box 31 is provided with feeding pipes 33 at equal intervals below the storage box 31. The bottom end of the feeding pipe 33 is provided with a feeding hopper 32 to add slurry as needed. The top of the storage box 31 is also provided with a feeding pipe 34 to facilitate the addition of slurry into the storage box 31. One end of the molding mold 11 is provided with a collection hopper 12, which is matched with the cleaning mechanism to facilitate the collection of the slurry adhering to the scraper 52 after the pressure roller 43 moves to the rear end, so as to facilitate subsequent unified recycling and reuse.

[0025] Working principle: In use, the slurry is injected into the molding mold 11. The electric push rod 13 retracts, causing the fixing block 14 to move downwards. The pressure roller 43 contacts the slurry in the molding mold 11. The linear guide device 15, in conjunction with the guide slider 16, moves, carrying the moving plate 21. The pressure roller 43 squeezes and dehydrates the slurry. Slurry adhering to the pressure roller 43 comes into contact with the scraper 52 as it rotates, and is scraped off by the scraper 52. The blower 53 operates, blowing air out through the air outlet 56 under the connecting pipe 54 and the air outlet pipe 55, assisting in... The scraped slurry flows into the molding mold 11, i.e., the front end of the pressure roller 43, to avoid adhering to the pressure roller 43 and to avoid slurry waste. Depending on the actual situation, the slurry in the storage tank 31 can be added to the slurry in the molding mold 11 through the feeding hopper 32 under the feeding pipe 33, and then squeezed and dehydrated to ensure the quality of processing. After the pressure roller 43 moves to the end of the molding mold 11, it continues to move. At this time, the scraper 52 can continue to scrape off the slurry adhering to the pressure roller 43, which flows along the scraper 52 into the collection hopper 12 for unified collection and convenient subsequent recycling and reuse.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for preventing slurry from sticking to rollers when forming asbestos-free boards, comprising a forming mold (11), characterized in that: The circumferential side of the molding die (11) is provided with a moving plate (21) via a moving mechanism. The moving plate (21) is provided with pressure roller (43) components and a cleaning mechanism at equal intervals. The moving plate (21) is also provided with a feeding component in the middle. One end of the molding die (11) is provided with a collection hopper (12), which is matched with the cleaning mechanism.

2. The anti-slurry sticking roller device for asbestos-free board sheet forming according to claim 1, characterized in that: The moving mechanism includes electric push rods (13) equidistantly arranged on the periphery of the forming mold (11), and a fixing block (14) is fixedly provided at the output end of the electric push rods (13).

3. The anti-slurry sticking roller device for asbestos-free board sheet forming according to claim 2, characterized in that: The moving mechanism also includes a linear guide rail device (15) disposed between two fixed blocks (14) on the same side. The linear guide rail device (15) is provided with guide rail sliders (16), and the two guide rail sliders (16) are fixedly connected to the moving plate (21) through a connecting block (22).

4. The anti-slurry sticking roller device for asbestos-free board sheet forming according to claim 3, characterized in that: The pressure roller (43) assembly includes mounting plates (41) equidistantly arranged under the moving plate (21), with a rotating rod (42) rotatably arranged between the two mounting plates (41) at the same end, and a pressure roller (43) arranged outside the rotating rod (42).

5. The anti-slurry sticking roller device for asbestos-free board sheet forming according to claim 4, characterized in that: The cleaning mechanism includes rectangular blocks (51) equidistantly arranged under the moving plate (21), and scrapers (52) inclined between two rectangular blocks (51) at the same end, with the scrapers (52) corresponding one-to-one with the pressure rollers (43).

6. The anti-slurry sticking roller device for asbestos-free board sheet forming according to claim 5, characterized in that: The cleaning mechanism also includes a blower (53) mounted on the movable plate (21). The blower (53) has a connecting pipe (54) at its output end. The connecting pipe (54) passes through the movable plate (21) and extends downward. The bottom end of the connecting pipe (54) has an air outlet (55). The air outlet (55) has air outlets (56) evenly spaced on it. The air outlets (56) match the scraper (52).

7. The anti-slurry sticking roller device for asbestos-free board sheet forming according to claim 6, characterized in that: The feeding assembly includes a storage box (31) set on a movable plate (21), a feeding pipe (33) is provided at equal intervals below the storage box (31), a feeding hopper (32) is provided at the bottom end of the feeding pipe (33), and a feeding pipe (34) is also provided at the top of the storage box (31).

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