Production device and process of a silicon rock sandwich purification plate

Abstract

This invention relates to the field of silicon rock sandwich cleanroom panels, specifically to a production apparatus and process for silicon rock sandwich cleanroom panels, comprising: a cutting mechanism; the cutting mechanism includes: a frame, movably disposed at the interval between two conveying mechanisms via an electric guide rail; a first pair of rollers, rotatably disposed within the frame for rolling the upper and lower planes of the cleanroom panel; and a second pair of rollers, rotatably disposed within the frame for rolling the two sides of the cleanroom panel. The beneficial effects of this invention are: the silicon rock sandwich cleanroom panel production apparatus proposed in this application, by integrating the first and second pair of rollers into the cutting mechanism and arranging them on the side of the cutting position of the cutting blade group, achieves synchronous extrusion of the upper and lower planes and the two sides of the cleanroom panel during the cutting process. This effectively suppresses the problem of separation or warping of the outer skin and core board of the cleanroom panel due to insufficient bonding strength after high-temperature curing during cutting.

Description

Technical Field

[0001] This invention belongs to the field of silicon rock sandwich purification panels, and specifically relates to a production device and process for silicon rock sandwich purification panels. Background Technology

[0002] Silica rock sandwich panels, a new type of building material that combines thermal insulation, fire resistance, moisture resistance, and cleanliness, are widely used in places with high environmental cleanliness requirements, such as electronics factories, hospital operating rooms, and food processing plants. Their production quality directly affects the construction effect and safety of subsequent projects. The core production process of this type of cleanroom panel mainly includes the composite of the core material and the outer skin, high-temperature curing, and cutting. Silica rock core material, with its excellent fire resistance and structural stability, has become the mainstream core material choice. The outer skin is mostly made of color-coated steel sheet or galvanized steel sheet, which is composited with the silica rock core material using a special adhesive.

[0003] In the current production process of silicon rock sandwich cleanroom panels, the outer skin is usually first tightly bonded to the upper, lower, and sides of the silicon rock core panel using adhesive. It is then sent to a curing station for high-temperature curing to initially improve the adhesion strength between the outer skin and the core panel. However, due to the limitations of the adhesive properties, high-temperature curing only achieves initial adhesion and cannot completely cure the adhesive. The cleanroom panel must then be left to stand at room temperature for a period of time to complete the final curing of the adhesive and ensure the stability of the adhesion between the outer skin and the core panel.

[0004] In actual production processes, the cleanroom panels, after high-temperature curing, must immediately enter the cutting station and be cut to specified dimensions according to actual usage requirements. Currently, most cutting devices on the market only have a single cutting function. They typically have a cutting assembly placed between two conveying mechanisms, which transport the cleanroom panels to the cutting position to complete the cutting operation. However, this cutting method has significant drawbacks: because the adhesive after high-temperature curing is in a preliminary cured state, the bonding strength between the outer skin and the silicon core board is limited. When the cutting blade assembly contacts the cleanroom panel, significant friction is generated between the blade and the outer skin, easily lifting the outer skin from the core board surface, causing separation and affecting product qualification rates.

[0005] Furthermore, even if no obvious separation or warping occurs between the outer skin and the core board during the cutting process, the connection between the outer skin and the core board will become loose after the edges of the cleanroom board are cut due to the shearing action of the cutter. Existing cutting devices lack corresponding edge reinforcement structures and cannot compress and reinforce the cut edges. During subsequent room-temperature curing, the adhesive at the edges is prone to uneven curing, leading to weak adhesion between the outer skin and the core board, resulting in edge warping, delamination, and other problems, thus reducing the product's structural stability and service life.

[0006] Therefore, there is an urgent need for a silicon rock sandwich cleanroom production device that can effectively squeeze and position the cleanroom panel during the cutting process and simultaneously reinforce the edges after cutting. Summary of the Invention

[0007] To address the aforementioned problems, embodiments of the present invention provide a production apparatus and process for silicon rock sandwich purification panels, thereby achieving the objective of resolving the problems raised in the background art.

[0008] To achieve the above objectives, the present invention employs the following technical solution: a production apparatus for a silicon rock sandwich purification panel, comprising two adjacent conveying mechanisms spaced apart, with a cutting mechanism positioned between the two conveying mechanisms; the cutting mechanism comprises: a frame movably disposed between the two conveying mechanisms via an electric guide rail; a first pair of rollers rotatably disposed within the frame for rolling the upper and lower planes of the purification panel; a second pair of rollers rotatably disposed within the frame for rolling the two sides of the purification panel; and a cutting blade assembly disposed on the frame for cutting the purification panel; wherein the first pair of rollers and the second pair of rollers are located on the side of the cutting position when the cutting blade assembly cuts the purification panel, so as to compress the purification panel during cutting.

[0009] As a further improvement to the above technical solution:

[0010] The first pair of rollers includes a fixed roller and a movable roller. The movable roller is movably mounted on the frame via a first connecting assembly to adjust the roller gap between the fixed roller and the movable roller.

[0011] The first connecting assembly includes a first groove formed on the frame, a first slider slidably disposed in the first groove, a first lead screw rotatably disposed in the first groove, and a first motor driving the first lead screw to rotate; the movable roller is rotatably disposed on the first slider, and the first slider is threadedly connected to the first lead screw.

[0012] The second pair of rollers includes two sets of detection rollers, which are arranged on the frame in opposite directions via a second connecting assembly to adjust the spacing between the two sets of detection rollers.

[0013] The second connecting assembly includes a second groove formed on the frame, two second sliders slidably disposed in the second groove, a second lead screw rotatably disposed in the second groove, and a second motor driving the second lead screw to rotate; each set of detection rollers is rotatably disposed on one of the second sliders, the two second sliders are respectively threadedly connected to the second lead screw, and the thread directions of the threaded holes inside the two second sliders are opposite; each set of detection rollers includes at least two roller bodies.

[0014] The second slider has a guide groove inside, and a guide rod is provided inside the second groove, with the guide rod passing through the inside of the guide groove.

[0015] The cutting blade assembly includes: a guide rail disposed on the frame; a third slider slidably disposed within the guide rail; a third lead screw rotatably disposed and threadedly connected to the third slider for driving the third slider to move along the length direction of the guide rail; and a blade holder connected to the third slider, wherein the blade holder is provided with blades for cutting the purification plate; wherein the blade holder is connected to the third slider via an electric push rod, the electric push rod driving the blade holder to rise and fall; the blade holder is also provided with a third motor, the third motor driving the blades to rotate via a transmission mechanism.

[0016] The first roller group is provided in two sets, and the two sets of the first roller group are respectively set on both sides of the cutting position. One set of the first roller group is connected to a fourth motor, which is used to drive the purification plate to move after the cutting is completed.

[0017] An angular velocity sensor is installed on the detection roller to detect whether there is a relative displacement between the cleanroom plate and the cutting blade assembly when the cutting blade assembly cuts the cleanroom plate.

[0018] This invention also proposes the following technical solution: a silicon rock sandwich cleanroom panel production process, comprising the following steps: S1, a conveying mechanism conveys the cleanroom panel to a cutting station; S2, at the cutting station, a first pair of rollers and a second pair of rollers roll the upper and lower planes and both sides of the cleanroom panel; S3, an electric guide rail drives a cutting blade group to move and remain relatively stationary with the cleanroom panel, and the cutting blade group cuts the cleanroom panel, wherein the rolling positions of the first pair of rollers and the second pair of rollers are located on both sides of the cutting position; S4, after cutting, the first pair of rollers and the second pair of rollers pass over the cut edge of the cleanroom panel to roll the cut edge; S5, during the cutting process, the second pair of rollers detects whether there is a relative displacement between the cleanroom panel and the cutting blade group, and if so, the cutting is stopped.

[0019] The beneficial effects of the embodiments of the present invention are as follows: The production apparatus for silicon rock sandwich panels proposed in this application integrates a first pair of rollers and a second pair of rollers into the cutting mechanism and arranges them on the side of the cutting position of the cutting blade group, thereby achieving synchronous extrusion of the upper and lower planes and both sides of the cleanroom panel during the cutting process. This effectively suppresses the problem of separation or warping of the outer skin and core board of the cleanroom panel due to insufficient bonding strength after high-temperature curing, significantly improving cutting quality and product qualification rate. After cutting, the first and second roller sets pass over the cut edge of the cleanroom plate to roll and press the cut edge; this allows the cut edge of the cleanroom plate to be reinforced by rolling, which helps to improve the loose edge connection after cutting and provides favorable conditions for the final curing of the subsequent adhesive. Attached Figure Description

[0020] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a first-view structural schematic diagram of the cutting mechanism of the present invention; Figure 3 This is a schematic diagram of the cutting mechanism of the present invention from a second perspective; Figure 4 This is a cross-sectional schematic diagram of the cutting mechanism of the present invention.

[0021] In the diagram: 1. Conveying mechanism; 2. Cutting mechanism; 21. Framework; 22. Electric guide rail; 23. First pair of rollers; 231. Fixed roller; 232. Movable roller; 24. Second pair of rollers; 241. Inspection roller; 25. Cutting blade assembly; 251. Guide rail; 252. Third slider; 253. Third lead screw; 254. Third motor; 255. Blade holder; 256. Transmission mechanism; 257. Blade; 258. Electric push rod; 26. First connecting assembly; 261. First slide groove; 262. First slider; 263. First lead screw; 264. First motor; 27. Second connecting assembly; 271. Second slide groove; 272. Second slider; 273. Second lead screw; 274. Second motor; 275. Guide groove; 276. Guide rod; 28. Fourth motor. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0023] Existing silicon rock sandwich panel production equipment encounters challenges when cutting high-temperature cured panels. Because the adhesive is only in a preliminary cured state, the bond strength between the outer skin and the core panel is limited. This results in significant friction between the cutting blades and the panel, easily causing separation and impacting product yield. Furthermore, the lack of edge reinforcement in existing cutting equipment leads to loose edge connections after cutting, resulting in issues like edge warping and delamination, reducing product structural stability and lifespan.

[0024] For this, see Figures 1 to 4 This invention discloses a production apparatus for a silicon rock sandwich panel, comprising two adjacent and spaced conveying mechanisms 1; a cutting mechanism 2 is provided at the gap between the two conveying mechanisms 1; the cutting mechanism 2 includes: a frame 21, movably disposed at the gap between the two conveying mechanisms 1 via an electric guide rail 22; a first pair of rollers 23, rotatably disposed within the frame 21 for rolling the upper and lower planes of the panel; a second pair of rollers 24, rotatably disposed within the frame 21 for rolling the two sides of the panel; and a cutting blade assembly 25, disposed on the frame 21 for cutting the panel; wherein the first pair of rollers 23 and the second pair of rollers 24 are located on the side of the cutting position of the cutting blade assembly 25 when cutting the panel, so as to squeeze the panel during cutting.

[0025] For ease of understanding, the following explains some key terms in this embodiment: The conveying mechanism 1 is used to carry and drive the silicon rock sandwich purification panel to move along a preset path, from the previous station (curing station) to the cutting station, and after the cutting is completed, to the next station.

[0026] Cutting mechanism 2 is designed to precisely cut the silicon rock sandwich purification panel that is conveyed to the cutting station to obtain the panel of the required size.

[0027] The frame 21, as the main structure of the cutting mechanism 2, is used to support and fix the various components inside the cutting mechanism 2, ensuring its stability and accuracy during operation.

[0028] The electric guide rail 22 provides movable support and guidance for the frame 21, enabling the cutting mechanism 2 to reciprocate at the interval between the two conveying mechanisms 1 to achieve follow-cutting; the electric guide rail 22 can be fixed to the ground by the frame.

[0029] The first pair of rollers 23 is configured to apply roller pressure to the upper and lower planes of the silicon rock sandwich panel to provide stable support and compression during the cutting process.

[0030] The second pair of rollers 24 is configured to apply roller pressure to both sides of the silica sand sandwich purification panel to further stabilize the purification panel during the cutting process and prevent lateral displacement.

[0031] The cutting blade assembly 25 is configured to cut the silicon rock sandwich purification panel with blade 257 to achieve the cutting and separation of the panel.

[0032] Cleanroom panels refer to silicon rock sandwich cleanroom panels that have undergone preliminary curing treatment. When the cleanroom panels enter the cutting station, the outer skin and the core material have formed a preliminary bond, but they still need to be placed at room temperature to cure in order to reach the final cured state.

[0033] The core of the production device for silicon rock sandwich purification panels proposed in this application lies in the stable cutting and edge reinforcement of the purification panels through the coordinated action of the conveying mechanism 1, the cutting mechanism 2, and the roller pressing assembly (first pair of rollers 23 and second pair of rollers 24).

[0034] Specifically, the production unit includes two adjacent conveyor mechanisms 1 spaced apart. These conveyor mechanisms 1 can be common types such as belt conveyors, chain conveyors, or roller conveyors, and their main function is to carry and / or drive the cleanroom plates along the production line. The space between the two conveyor mechanisms 1 is designed as a cutting station to accommodate a cutting mechanism 2.

[0035] A cutting mechanism 2 is provided at the interval between the two conveying mechanisms 1. This cutting mechanism 2 is the core component for cutting the cleanroom panel, and its overall structure is designed to be movable to achieve synchronous follow-cutting.

[0036] The cutting mechanism 2 includes a frame 21, which serves as the main support for the cutting mechanism 2. The frame 21 is movably mounted at the interval between the two conveying mechanisms 1 via an electric guide rail 22. The electric guide rail 22 can be composed of a gear and rack mechanism or a ball screw mechanism driven by a motor, enabling the frame 21 to move precisely along a preset path and move synchronously with the purification plate, thereby achieving the following cutting of the purification plate.

[0037] Within the frame 21, a first pair of rollers 23 is rotatably arranged for rolling the upper and lower surfaces of the purification plate. The first pair of rollers 23 can be composed of a pair of rollers arranged symmetrically in the upper and lower directions, forming a rolling gap between the rollers. When the purification plate passes through this gap, it is squeezed in the upper and lower directions.

[0038] Meanwhile, a second pair of rollers 24 is rotatably arranged within the frame 21 for rolling the two sides of the purification plate. The second pair of rollers 24 can be composed of two sets of laterally arranged rollers, each set of rollers acting on one side of the purification plate to apply lateral compression to the purification plate.

[0039] In addition, a cutting blade assembly 25 is mounted on the frame 21 for cutting the cleanroom panel. This cutting blade assembly 25 can take various forms; for example, it can be a fixed-mount circular saw blade driven by a motor to rotate at high speed to cut the cleanroom panel.

[0040] The first pair of rollers 23 and the second pair of rollers 24 are arranged on the side of the cutting position when the cutting blade assembly 25 cuts the cleanroom board. This means that while the cutting blade assembly 25 is performing the cutting operation, the first pair of rollers 23 and the second pair of rollers 24 can simultaneously squeeze the upper and lower planes and both sides of the cleanroom board. For example, the roller sets can be arranged close to both sides of the cutting blade 257 to ensure that at the moment the blade 257 contacts the cleanroom board, the cutting area of ​​the cleanroom board and its surrounding area are subjected to continuous and stable roller pressure from the first pair of rollers 23 and the second pair of rollers 24, thereby effectively suppressing the separation of the outer skin from the core board or the warping phenomenon.

[0041] The production apparatus for silicon rock sandwich panels proposed in this application integrates a first pair of rollers 23 and a second pair of rollers 24 into the cutting mechanism 2, and arranges them on the side of the cutting position of the cutting blade group 25. This achieves synchronous extrusion of the upper and lower planes and both sides of the cleanroom panel during the cutting process. This effectively suppresses the problem of separation or warping of the outer skin and core board of the cleanroom panel due to insufficient bonding strength after high-temperature curing, significantly improving cutting quality and product qualification rate.

[0042] In some embodiments described above in this application, a first pair of rollers 23 is proposed to roll the upper and lower planes of the cleanroom plate. However, in actual production, the thickness of the cleanroom plate may fluctuate to some extent, requiring adjustment of the rolling gap according to different production needs. In this regard, this application further proposes that the first pair of rollers 23 includes a fixed roller 231 and a movable roller 232. The movable roller 232 is movably mounted on the frame 21 via a first connecting assembly 26 to adjust the rolling gap between the fixed roller 231 and the movable roller 232.

[0043] Specifically, the fixed roller 231 typically refers to a roller whose position is relatively fixed during the rolling process, and its axis is usually securely mounted on the frame 21 via structures such as bearing seats. The movable roller 232 refers to a roller whose position can be adjusted relative to the fixed roller 231 during the rolling process. Its axis is also mounted via structures such as bearing seats, but these bearing seats are movable. Both rollers are typically made of high-strength, wear-resistant materials.

[0044] The first connecting component 26 is a key structure for enabling the movable setting of the movable roller 232. Its function is to provide a stable and controllable moving mechanism, allowing the movable roller 232 to precisely displace along a preset path, thereby changing its distance from the fixed roller 231. This component can be implemented using various mechanical structures; for example, in addition to a screw drive mechanism, it can be a hydraulically driven slider mechanism, a pneumatically driven linkage mechanism, or a gear and rack mechanism coupled with a motor-driven moving platform. Regardless of the form used, the core is the ability to convert the driving force into precise linear displacement of the movable roller 232 and maintain positional stability after displacement to ensure the accuracy of the roller gap.

[0045] The roller gap refers to the vertical distance between the fixed roller 231 and the movable roller 232. The size of this gap directly determines the amount of roller pressure applied to the cleanroom plate. By adjusting the roller gap, cleanroom plates of different thicknesses can be accommodated, or the roller pressure intensity can be adjusted according to production process requirements. For example, when the thickness of the cleanroom plate increases, the roller gap needs to be increased; when a stronger roller pressure effect is required, the gap can be appropriately reduced.

[0046] Through the above technical solution, the first roller group 23 is designed to include a fixed roller 231 and a movable roller 232, with the movable roller 232 movably mounted on the frame 21 via a first connecting assembly 26. This design allows the roller gap between the fixed roller 231 and the movable roller 232 to be precisely adjusted according to actual needs. When the thickness of the cleanroom plate changes, or when the roller pressure needs to be adjusted to adapt to different materials or process requirements, the operator can easily adjust the position of the movable roller 232 via the first connecting assembly 26, thereby changing the roller gap. This not only ensures effective roller pressure on cleanroom plates of different thicknesses but also avoids uneven roller pressure or damage to the plate caused by gap mismatch.

[0047] This application further proposes a specific implementation of the first connecting component 26, which includes a first slide groove 261 formed on the frame 21, a first slider 262 slidably disposed in the first slide groove 261, a first lead screw 263 rotatably disposed in the first slide groove 261, and a first motor 264 driving the first lead screw 263 to rotate; the movable roller 232 is rotatably disposed on the first slider 262, and the first slider 262 is threadedly connected to the first lead screw 263.

[0048] Specifically, the first groove 261 is a pre-designed structure on the frame 21 used to guide and restrict the trajectory of moving parts. It is typically an elongated groove with a smooth inner surface to reduce friction. Its function is to provide a precise movement path for the first slider 262, ensuring that the movable roller 232 can move stably along a predetermined direction during adjustment, avoiding skewing or jamming. The first slider 262 is a sliding component that cooperates with the first groove 261. Its shape and size match the first groove 261, allowing it to slide smoothly within it. The movable roller 232 is rotatably mounted on the first slider 262. The function of the first slider 262 is to support the movable roller 232 and restrict its movement along the straight line defined by the first groove 261, thereby achieving precise displacement of the movable roller 232. The first lead screw 263 is a mechanical transmission element that converts rotary motion into linear motion, with a helical thread machined on its surface. It is rotatably mounted inside the first groove 261 and cooperates with the threaded hole on the first slider 262. When the first lead screw 263 rotates, the first slider 262 is driven to move linearly along the axis of the first lead screw 263 due to the meshing of the threads. This structure provides high-precision displacement control and large thrust, ensuring accurate and stable adjustment of the movable roller 232. The first motor 264 is the actuator that provides the power source. It is connected to the first lead screw 263 via a coupling or other transmission method and is responsible for driving the first lead screw 263 to rotate. By controlling the rotation direction and amount of the first motor 264, precise control of the first lead screw 263 can be achieved, thereby enabling precise adjustment of the position of the movable roller 232.

[0049] In some embodiments described above in this application, a production apparatus for silicon rock sandwich panels is proposed, wherein the cutting mechanism 2 includes a second pair of rollers 24 for rolling the two sides of the clean panel. However, in actual production, the width of the clean panel may vary. To address this, this application further proposes that the second pair of rollers 24 includes two sets of detection rollers 241, which are arranged on the frame 21 in opposite directions via a second connecting assembly 27 to adjust the spacing between the two sets of detection rollers 241.

[0050] Specifically, the second roller group 24 is defined as comprising two sets of detection rollers 241. These detection rollers 241 are components used to contact and apply rolling pressure to the two sides of the cleanroom plate. Each set of detection rollers 241 may consist of one or more roller bodies, the surface of which is typically made of a wear-resistant material to ensure a stable rolling effect during long-term use. They not only perform the function of squeezing the sides of the cleanroom plate, but also provide the physical basis for any subsequent detection functions that may be introduced. To achieve adaptability to cleanroom plates of different widths, the two sets of detection rollers 241 are designed to be movable on the frame 21. This movement is not a simple unidirectional movement, but rather "reverse movement," that is, when one set of detection rollers 241 moves inward, the other set of detection rollers 241 also moves inward synchronously, or the two move relative to each other in a symmetrical manner. This reverse movement is achieved through a second connecting assembly 27, which may be a mechanical linkage mechanism, a screw drive mechanism, or a linear guide system, the core of which is to ensure that the two sets of detection rollers 241 can adjust their positions synchronously and symmetrically. The purpose of the aforementioned reverse movement is to precisely adjust the spacing between the two sets of detection rollers 241. By adjusting the spacing, the detection rollers 241 can be made to fit tightly against the sides of cleanroom panels of different widths, thereby applying stable and uniform roller pressure.

[0051] This application further proposes that the aforementioned second connecting assembly 27 includes a second slide groove 271 formed on the frame 21, two second sliders 272 slidably disposed within the second slide groove 271, a second lead screw 273 rotatably disposed within the second slide groove 271, and a second motor 274 driving the second lead screw 273 to rotate; each set of detection rollers 241 is rotatably disposed on one of the second sliders 272, the two second sliders 272 are respectively threadedly connected to the second lead screw 273, and the thread directions of the threaded holes inside the two second sliders 272 are opposite; each set of detection rollers 241 includes at least two roller bodies.

[0052] Specifically, the second groove 271 is one or more guide structures mounted on the frame 21, serving to provide a precise linear motion trajectory for the second slider 272. The second groove 271 can take various forms, such as rectangular grooves, and its internal surface is typically precision-machined to ensure smoothness and wear resistance, thereby reducing frictional resistance and ensuring smooth and stable movement of the second slider 272. The two second sliders 272 are components that slide within the second groove 271, serving as mounting bases for the detection roller 241, bearing and transmitting the roller pressure force. The second sliders 272 are typically made of materials with good strength and wear resistance, and their shape precisely matches the second groove 271 to ensure stability and accuracy of movement. The second lead screw 273 is a precision mechanical transmission element that converts rotary motion into linear motion, and it has helical threads machined on it. The second motor 274 is an actuator that provides rotational power to the second lead screw 273, connected to the second lead screw 273 via a coupling or gear transmission mechanism, driving the second lead screw 273 to rotate precisely.

[0053] Based on this, each set of detection rollers 241 is rotatably mounted on a second slider 272. This means that the detection rollers 241 can move along the second slide groove 271 together with the second sliders 272, while simultaneously rotating freely to accommodate the conveying of the purification plate. Crucially, the two second sliders 272 are threadedly connected to the same second lead screw 273, and the thread directions of the internal threaded holes of the two second sliders 272 are opposite. When the second motor 274 drives the second lead screw 273 to rotate, due to the opposite thread directions, the two second sliders 272 will simultaneously move linearly at the same speed and direction (one inward, one outward, or vice versa), thereby achieving precise synchronous reverse movement of the two sets of detection rollers 241.

[0054] Furthermore, each set of detection rollers 241 includes at least two rollers, meaning that at least two rollers are in contact with the side of the cleanroom plate on each side. This multi-roller design significantly increases the contact area with the side of the cleanroom plate, preventing misalignment of the cleanroom plate in conjunction with the first pair of rollers 23.

[0055] The above technical solution employs a structure where a second lead screw 273 is threadedly connected to two second sliders 272 with opposite thread directions, and driven by a second motor 274. This enables precise, stable, and synchronous reverse movement of the two sets of detection rollers 241, effectively solving the problem of asynchrony or inaccuracy that may occur when adjusting the roller spacing. This design ensures that both sides of the cleanroom plate receive uniform and stable pressure during the rolling process, improving the rolling quality. Furthermore, each set of detection rollers 241 includes at least two roller bodies, further increasing the contact area with the sides of the cleanroom plate, resulting in more uniform rolling.

[0056] This application further proposes that the second slider 272 has a guide groove 275 inside, and the second slide groove 271 has a guide rod 276 inside, with the guide rod 276 passing through the inside of the guide groove 275.

[0057] A guide groove 275 is formed inside the second slider 272, and a guide rod 276 is set inside the second groove 271, with the guide rod 276 passing through the guide groove 275, providing an additional, stable linear guide mechanism for the second slider 272. This structure effectively limits the deflection and wobbling of the second slider 272 when it moves along the second lead screw 273, ensuring the smoothness and high precision of its movement. Therefore, the detection roller 241 connected to the second slider 272 can be precisely positioned and stably supported. The detection roller 241 is used to detect the relative displacement between the purification plate and the cutting blade assembly 25, and its stable positioning also ensures the accuracy and reliability of the detection results.

[0058] This application further proposes a cutting blade assembly 25 comprising: a guide rail 251 disposed on a frame 21; a third slider 252 slidably disposed within the guide rail 251; a third lead screw 253 rotatably disposed and threadedly connected to the third slider 252 for driving the third slider 252 to move along the length direction of the guide rail 251; and a blade holder 255 connected to the third slider 252, the blade holder 255 being provided with a blade 257 for cutting the purification plate; wherein, the blade holder 255 is connected to the third slider 252 via an electric push rod 258, the electric push rod 258 driving the blade holder 255 to rise and fall; the blade holder 255 is also provided with a third motor 254, the third motor 254 driving the blade 257 to rotate via a transmission mechanism 256.

[0059] The guide rail 251 is a mechanical component used to provide a precise linear motion path. It is typically made of high-strength material with a precision-machined surface to ensure smooth, low-friction movement of sliding or rolling components. The guide rail 251 can take various forms, such as linear guides, dovetail guides, or cylindrical guides. Its main function is to provide a stable and repeatable movement trajectory for the subsequent third slider 252, thereby ensuring that the cutting blade assembly 25 moves precisely along a preset path during the cutting process, avoiding cutting deviations.

[0060] The third slider 252 is a moving component that works in conjunction with the guide rail 251. It typically contains rolling elements or sliding bushings to achieve low-friction sliding with the guide rail 251. The third slider 252 supports the tool holder 255 and its related components and fixes it to the guide rail 251, ensuring that the tool holder 255 can move stably along the direction of the guide rail 251 during the cutting process, while also bearing the reaction force generated during cutting.

[0061] The third lead screw 253 is a precision transmission element that converts rotary motion into linear motion. It typically consists of a threaded rod that drives the third slider 252 to move along its axis via rotation. The third lead screw 253 is threadedly connected to the third slider 252. A motor can be mounted on the third lead screw 253 to drive its rotation. Through its own rotation, the position of the third slider 252 on the guide rail 251 can be precisely controlled, thereby enabling fine adjustment of the cutting position of the blade 257 or precise feeding during the cutting process.

[0062] The third motor 254 is an actuator that provides rotational power to the blade 257. The third motor 254 transmits power to the blade 257 through the transmission mechanism 256, causing it to rotate at high speed, thereby achieving effective cutting of the purification plate.

[0063] The tool holder 255 is a structural component used to mount and secure the blade 257. It is typically designed to securely hold the blade 257 and withstand various forces exerted on the blade 257 during cutting. The tool holder 255 also integrates a third motor 254 and a transmission mechanism 256 for driving the rotation of the blade 257, as well as a connection point for an electric push rod 258 for lifting and adjusting.

[0064] Blade 257 is the tool that directly contacts the cleanroom plate and performs the cutting operation. Depending on the material properties of the cleanroom plate and the cutting requirements, blade 257 can be a high-speed steel blade, a carbide blade, a diamond blade, etc., and its shape and tooth profile may also vary, such as a circular saw blade, a milling cutter, or a rotary shearing blade. Blade 257 achieves precise separation by rotating at high speed and cutting the cleanroom plate with a sharp cutting edge.

[0065] The electric push rod 258 is connected between the blade holder 255 and the third slider 252. Driven by the motor, it can precisely control the vertical lifting position of the blade holder 255, thereby achieving precise adjustment of the cutting depth of the blade 257, or moving the blade 257 away from the purification plate in a non-cutting state.

[0066] The transmission mechanism 256 is a mechanical system connecting the third motor 254 and the blade 257. It transmits the rotational power of the third motor 254 to the blade 257 and may change the speed and torque. The transmission mechanism 256 can be in the form of belt drive, gear drive, chain drive, etc. Its function is to ensure that the blade 257 can cut at an appropriate speed and torque to achieve the best cutting effect.

[0067] The cooperation of guide rail 251, third slider 252, and third lead screw 253 enables the tool holder 255 to move linearly along a preset path with high precision, ensuring the accuracy of the cutting position. The introduction of electric push rod 258 makes the lifting action of the tool holder 255 controllable, thereby precisely adjusting the cutting depth of the blade 257 to adapt to the cutting needs of cleanroom panels of different thicknesses, and allowing the blade 257 to be moved quickly when not cutting, avoiding unnecessary wear or scratches.

[0068] This application further proposes that the first pair of rollers 23 is provided in two sets, and the two sets of first pair of rollers 23 are respectively arranged on both sides of the cutting position. One set of first pair of rollers 23 is connected to a fourth motor 28, which is used to drive the purification plate to move after the cutting is completed.

[0069] Specifically, the first pair of rollers 23 is configured as two sets in the device, strategically arranged on both sides of the cutting position where the cutting blade group 25 cuts the cleanroom plate. This dual-set configuration ensures that the cleanroom plate is always stably supported and pressed by rollers from both sides of the cutting area during the cutting process, thereby enhancing the stability during cutting and effectively preventing the cleanroom plate from shaking or deforming during cutting, while also reducing the phenomenon of outer skin peeling and separation after cutting. After cutting, one set of the first pair of rollers 23 is connected to the fourth motor 28. The fourth motor 28, as a power source, drives the first pair of rollers 23 connected to it to rotate, thereby smoothly and accurately pushing the cut cleanroom plate out of the cutting area. After cutting, the cutting mechanism 2 is reset under the drive of the electric guide rail 22, and the first pair of rollers 23 quickly pushes the cut cleanroom plate out of the cutting area, that is, out of the rolling pressure range of the first pair of rollers 23, avoiding the movement of the cut cleanroom plate when the cutting mechanism 2 resets. Simultaneously, through the active drive of the first pair of rollers 23, the first pair of rollers 23 and the second pair of rollers 24 can achieve roller pressing and curing of the cut edges of the cleanroom board after cutting; this allows the cut edges of the cleanroom board to be reinforced by roller pressing, which helps to improve the loose connection of the cut edges and provides favorable conditions for the final curing of the subsequent adhesive.

[0070] This application further proposes that an angular velocity sensor is provided on the detection roller 241 to detect whether there is a relative displacement between the clean plate and the cutting blade group 25 when the cutting blade group 25 cuts the clean plate.

[0071] Specifically, the angular velocity sensor installed on the detection roller 241 is a device used to measure the rotational angular velocity of the roller in real time. This sensor can be implemented using various technologies. For example, a photoelectric encoder can be used, which calculates the angular velocity by detecting the grating signal on the rotating disk, offering high measurement accuracy and stability. Alternatively, a Hall effect sensor can be used, which measures the rotational speed by sensing changes in the magnetic field. These angular velocity sensors are typically precisely mounted on the shaft end of the detection roller 241, or on a component coaxially connected to the detection roller 241, to ensure accurate acquisition of the rotational information of the detection roller 241. By acquiring the angular velocity of the detection roller 241, the linear velocity of the purification plate as it passes through the detection roller 241 can be indirectly calculated, thus providing crucial data for determining the actual movement state of the purification plate.

[0072] When determining the moving speed of the purification plate: When the cleanroom plate enters the cutting station, it first needs to pass through the cutting mechanism 2 and move a certain distance (this distance is the fixed cutting length of the cleanroom plate). When the cleanroom plate passes through the second pair of rollers 24 at a preset conveying speed, it drives the detection roller 241 to rotate. The angular velocity of the detection roller 241 is obtained in real time by the angular velocity sensor. Combined with the known diameter of the detection roller 241, the actual linear velocity of the cleanroom plate at the detection roller 241 can be accurately calculated. Subsequently, this actual linear velocity is matched with the electric guide rail 22 so that the electric guide rail 22 maintains the same linear velocity when it drives the cutting mechanism 2 to move. That is, by measuring the actual moving speed of the cleanroom plate by the detection roller 241, it is ensured that the electric guide rail 22 drives the cutting blade assembly 25 to maintain the same moving speed as the cleanroom plate, so that the cutting blade assembly 25 can follow and cut the cleanroom plate.

[0073] During the cutting process of the cleanroom plate by the cutting blade assembly 25, the detection roller 241 is used to detect whether there is a relative displacement between the cleanroom plate and the cutting blade assembly 25. This means monitoring whether the actual moving speed or position of the cleanroom plate is consistent with the moving speed of the cutting blade assembly 25. When the cutting blade assembly 25 synchronously follows the cleanroom plate during cutting, that is, the moving speed of the cutting blade assembly 25 is consistent with that of the cleanroom plate, the detection roller 241 and the cleanroom plate remain relatively stationary. If the moving speed of the cutting blade assembly 25 is inconsistent with that of the cleanroom plate, that is, a relative displacement has occurred between the cutting blade assembly 25 and the cleanroom plate, the detection roller 241 will rotate. The angular velocity of the detection roller 241 is obtained in real time by the angular velocity sensor, indicating that a relative displacement has occurred between the cleanroom plate and the cutting blade assembly 25. Once this relative displacement is detected, the system can immediately take corresponding control measures, such as pausing the cutting operation, adjusting the conveying speed of the cleanroom plate or the moving speed of the cutting blade assembly 25, to correct the deviation.

[0074] The detection rollers 241 are arranged in multiple parallel groups. An angular velocity sensor is installed on each detection roller 241 to collect and compare the rotational status signals of each roller in real time, thereby comprehensively determining whether the detection roller 241 has rotated effectively. This method significantly improves the reliability and accuracy of rotation detection, effectively avoiding false detections and false triggers caused by single sensor failure, material interference, or instantaneous disturbances, ensuring more stable and reliable identification of the equipment's operating status.

[0075] The detection roller 241 is used to detect whether there is relative displacement between the purification plate and the cutting blade assembly 25. This detection function is only activated after the electric push rod 258 drives the blade holder 255 to its position; when the electric push rod 258 is in the correct position, the rotation signal generated by the detection roller 241 is used to determine whether there is relative displacement between the purification plate and the cutting blade assembly 25.

[0076] By employing the aforementioned technical solution, an angular velocity sensor is installed on the detection roller 241. This application enables real-time and precise monitoring of the relative displacement between the cleanroom plate and the cutting blade assembly 25 during the cutting process. When relative displacement is detected, the system can promptly issue an alarm or take corresponding control measures, such as pausing the cutting, thereby effectively avoiding cutting errors caused by relative displacement and significantly improving cutting accuracy and product quality. Furthermore, since the detection roller 241 itself is used to roll the side of the cleanroom plate, maintaining close contact with it, the cleanroom plate movement information obtained by the angular velocity sensor on it is more accurate and reliable, further enhancing the effectiveness of the detection and ensuring the stability of the production process and the uniformity of cutting quality.

[0077] This application proposes a manufacturing process for silicon rock sandwich panels, which includes the following steps: First, the conveyor mechanism 1 transports the cleanroom panel to be processed to the cutting station. This step aims to precisely position the silica sand sandwich cleanroom panel to be processed into the predetermined cutting area. The conveyor mechanism 1 smoothly and continuously transports the cleanroom panel from the upstream process to the cutting station where the cutting mechanism 2 is located.

[0078] Subsequently, at the cutting station, the top and bottom planes and both sides of the cleanroom board are rolled using the first pair of rollers 23 and the second pair of rollers 24. This roll pressing reinforces the connection between the outer skin and the core board, while also defining the position of the cleanroom board. This step pre-treats the cleanroom board before cutting to improve cutting stability and precision. The first pair of rollers 23 applies vertical pressure to the top and bottom planes of the cleanroom board, ensuring uniform thickness and solidifying the board structure, reducing vibration and deformation during cutting. The second pair of rollers 24 applies horizontal pressure to the two sides of the cleanroom board, ensuring stability in the width direction and further compacting the side material to prevent edge chipping during cutting.

[0079] Next, the electric guide rail 22 drives the cutting blade assembly 25 to move, cutting the cleanroom panel. The first pair of rollers 23 and the second pair of rollers 24 are positioned on either side of the cutting point. The electric guide rail 22 drives the cutting blade assembly 25 up and down, controlling the cutting depth. The movement of the cutting blade assembly 25 ensures it remains relatively stationary with the conveyed cleanroom panel, achieving precise cutting. During this process, the first pair of rollers 23 and the second pair of rollers 24 continuously press the cleanroom panel, with their pressing positions located on either side of the cutting point of the cutting blade assembly 25. This configuration ensures that the cleanroom panel is consistently compressed before and after the cutting point, effectively suppressing any possible peeling or separation during cutting, thus guaranteeing the quality of the cut edge.

[0080] After cutting, the first pair of rollers 23 and the second pair of rollers 24 pass over the cut edge of the cleanroom plate to roll and press the cut edge. This step is a post-processing of the cleanroom plate edge after cutting. After the cutting blade assembly 25 completes cutting and leaves the cutting area, the first pair of rollers 23 and the second pair of rollers 24 continue to act on the newly formed cut edge. This post-rolling operation helps to further compact the cut edge.

[0081] Simultaneously, during the cutting process, the second pair of rollers 24 detects whether there is relative displacement between the purification plate and the cutting blade assembly 25. If such displacement exists, the cutting is stopped. Once the relative displacement exceeds a preset threshold, the system will immediately issue a command to stop the cutting operation. This measure aims to promptly detect and correct abnormalities during the cutting process, avoid cutting deviations caused by displacement, and thus effectively prevent product defects and material waste.

[0082] The above technical solution is further illustrated by specific examples below: In a production workshop for silica-core sandwich panels, the panels, after initial high-temperature curing, need to be cut to specified dimensions. After high-temperature curing, the adhesive between the outer layer and the silica core panel is still in a preliminary curing state, with limited bonding strength. If cutting is performed directly, the friction between the cutter and the outer layer can easily cause the outer layer to peel off the core panel surface, affecting product quality. Simultaneously, the cut edges are prone to loosening, leading to uneven curing and edge curling issues later on.

[0083] To address the aforementioned problems, this application proposes a production apparatus for silica-core cleanroom panels. The apparatus includes two adjacent conveying mechanisms 1 spaced apart. When the cleanroom panel is conveyed from the upstream station to the cutting station, the two conveying mechanisms 1 smoothly feed the cleanroom panel into the space between them.

[0084] A cutting mechanism 2 is provided at the interval between the two conveying mechanisms 1. The cutting mechanism 2 includes a frame 21, which is movably mounted at the interval between the conveying mechanisms 1 via an electric guide rail 22. The electric guide rail 22 can drive the frame 21 to move along the conveying direction of the clean plate, thereby enabling the cutting mechanism 2 to remain relatively stationary with the clean plate being conveyed, thus achieving continuous cutting.

[0085] Inside the frame 21, there are a first pair of rollers 23, a second pair of rollers 24, and a cutting blade assembly 25.

[0086] Specifically, the first pair of rollers 23 is rotatably mounted within the frame 21 for rolling the upper and lower surfaces of the purification plate. This first pair of rollers 23 includes a fixed roller 231 and a movable roller 232. The movable roller 232 is movably mounted on the frame 21 via a first connecting assembly 26. The first connecting assembly 26 includes a first groove 261 formed in the frame 21, a first slider 262 slidably mounted within the first groove 261, a first lead screw 263 rotatably mounted within the first groove 261, and a first motor 264 driving the first lead screw 263 to rotate. The movable roller 232 is rotatably mounted on the first slider 262, which is threadedly connected to the first lead screw 263. By driving the first lead screw 263 to rotate via the first motor 264, the rolling gap between the fixed roller 231 and the movable roller 232 can be adjusted to accommodate purification plates of different thicknesses and to apply precise upper and lower pressing forces.

[0087] Simultaneously, a second pair of rollers 24 is also rotatably mounted within the frame 21 for rolling the two sides of the purification plate. This second pair of rollers 24 includes two sets of detection rollers 241, which are mounted on the frame 21 in opposite directions via a second connecting assembly 27 to adjust the distance between the two sets of detection rollers 241. The second connecting assembly 27 includes a second groove 271 formed on the frame 21, two second sliders 272 slidably mounted within the second groove 271, a second lead screw 273 rotatably mounted within the second groove 271, and a second motor 274 driving the second lead screw 273 to rotate. Each set of detection rollers 241 is rotatably mounted on one of the second sliders 272, and the two second sliders 272 are threadedly connected to the second lead screw 273, with the threads on the two second sliders 272 in opposite directions. Thus, when the second motor 274 drives the second lead screw 273 to rotate, the two second sliders 272 move synchronously inward or outward, thereby precisely adjusting the distance between the two sets of detection rollers 241 and applying a stable pressing force to the two sides of the purification plate. To ensure the stability of the movement of the second slider 272, a guide groove 275 is provided inside the second slider 272, and a guide rod 276 is provided inside the second groove 271, passing through the inside of the guide groove 275. Each set of detection rollers 241 includes at least two roller bodies to provide more stable lateral rolling pressure.

[0088] A cutting blade assembly 25 is mounted on a frame 21 and is used to cut the cleanroom plate. The cutting blade assembly 25 includes a guide rail 251 mounted on the frame 21, a third slider 252 slidably mounted within the guide rail 251, and a third lead screw 253 rotatably mounted and threadedly connected to the third slider 252, used to drive the third slider 252 to move along the length of the guide rail 251. A blade holder 255 is connected to the third slider 252, and a blade 257 for cutting the cleanroom plate is mounted on the blade holder 255. The blade holder 255 is connected to the third slider 252 via an electric push rod 258, which drives the blade holder 255 to rise and fall, thereby controlling the cutting depth of the blade 257. A third motor 254 is also mounted on the blade holder 255, which drives the blade 257 to rotate via a transmission mechanism 256, achieving efficient cutting.

[0089] In the actual cutting process, the cleanroom board is conveyed to the cutting station by the conveying mechanism 1. At the cutting station, the first pair of rollers 23 and the second pair of rollers 24 first roll the cleanroom board on its upper and lower surfaces and both sides. Unlike existing devices that only have a single cutting function, this device provides continuous compression support before and during cutting. Specifically, the first pair of rollers 23 and the second pair of rollers 24 are located on the side of the cutting position when the cutting blade group 25 cuts the cleanroom board. This means that before and during the cutting process, the cutting area of ​​the cleanroom board is constantly compressed by the first pair of rollers 23 and the second pair of rollers 24. This pre- and synchronous compression effectively fixes the outer skin and core board of the cleanroom board, significantly reducing the frictional force generated when the cutting blade group 25 contacts the outer skin and thus preventing the outer skin from separating from the core board.

[0090] The terms “first” and “second” are used to distinguish similar objects, rather than to describe or indicate a specific order or sequence.

[0091] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent in such process, method, article, or apparatus / device.

[0092] The technical solution of the present invention has been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is obviously not limited to these specific embodiments. Without departing from the principles of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of the present invention.

Claims

1. A production apparatus for a silicon rock sandwich panel, comprising two adjacent conveying mechanisms (1) spaced apart, characterized in that, A cutting mechanism (2) is provided at the interval between the two conveying mechanisms (1); The cutting mechanism (2) includes: The frame (21) is movably disposed at the interval between the two conveying mechanisms (1) via an electric guide rail (22); The first pair of rollers (23) is rotatably arranged inside the frame (21) for rolling the upper and lower planes of the purification plate; The second pair of rollers (24) is rotatably disposed within the frame (21) for rolling the two sides of the purification plate; and A cutting blade assembly (25) is mounted on the frame (21) for cutting the purification plate; The first pair of rollers (23) and the second pair of rollers (24) are located on the side of the cutting position when the cutting blade group (25) cuts the purification plate, so as to squeeze the purification plate during cutting.

2. The production apparatus for silicon rock sandwich cleanroom panels according to claim 1, characterized in that, The first pair of rollers (23) includes a fixed roller (231) and a movable roller (232). The movable roller (232) is movably mounted on the frame (21) via a first connecting assembly (26) to adjust the roller gap between the fixed roller (231) and the movable roller (232).

3. The production apparatus for silicon rock sandwich purification panels according to claim 2, characterized in that, The first connecting assembly (26) includes a first groove (261) formed on the frame (21), a first slider (262) slidably disposed in the first groove (261), a first lead screw (263) rotatably disposed in the first groove (261), and a first motor (264) driving the first lead screw (263) to rotate; the movable roller (232) is rotatably disposed on the first slider (262), and the first slider (262) is threadedly connected to the first lead screw (263).

4. The production apparatus for silicon rock sandwich cleanroom panels according to claim 1, characterized in that, The second pair of rollers (24) includes two sets of detection rollers (241), which are arranged on the frame (21) in opposite directions via a second connecting assembly (27) to adjust the spacing between the two sets of detection rollers (241).

5. The production apparatus for silicon rock sandwich purification panels according to claim 4, characterized in that, The second connecting assembly (27) includes a second slide groove (271) opened on the frame (21), two second sliders (272) slidably disposed in the second slide groove (271), a second lead screw (273) rotatably disposed in the second slide groove (271), and a second motor (274) driving the second lead screw (273) to rotate; each set of detection rollers (241) is rotatably disposed on one of the second sliders (272), the two second sliders (272) are respectively threadedly connected to the second lead screw (273), and the thread directions of the threaded holes inside the two second sliders (272) are opposite; each set of detection rollers (241) includes at least two roller bodies.

6. The production apparatus for silicon rock sandwich purification panels according to claim 5, characterized in that, The second slider (272) has a guide groove (275) inside, and the second slide groove (271) has a guide rod (276) inside, which passes through the guide groove (275).

7. The production apparatus for silicon rock sandwich purification panels according to claim 1, characterized in that, The cutting blade assembly (25) includes: A guide rail (251) is mounted on the frame (21); The third slider (252) is slidably disposed within the guide rail (251); The third lead screw (253) is rotatably configured and threadedly connected to the third slider (252) for driving the third slider (252) to move along the length direction of the guide rail (251); and A blade holder (255) is connected to the third slider (252), and the blade holder (255) is provided with a blade (257) for cutting the purification plate. The tool holder (255) is connected to the third slider (252) via an electric push rod (258), and the electric push rod (258) drives the tool holder (255) to rise and fall; the tool holder (255) is also equipped with a third motor (254), and the third motor (254) drives the blade (257) to rotate via a transmission mechanism (256).

8. The production apparatus for silicon rock sandwich cleanroom panels according to claim 1, characterized in that, The first pair of rollers (23) is provided in two sets, and the two sets of the first pair of rollers (23) are respectively set on both sides of the cutting position. One set of the first pair of rollers (23) is connected to a fourth motor (28) for driving the purification plate to move after the cutting is completed.

9. The production apparatus for silicon rock sandwich cleanroom panels according to claim 4, characterized in that, An angular velocity sensor is provided on the detection roller (241) to detect whether there is a relative displacement between the purification plate and the cutting blade group (25) when the cutting blade group (25) cuts the purification plate.

10. A process for producing silica-core cleanroom panels using the production apparatus according to any one of claims 1-9, characterized in that, Includes the following steps: S1, the conveying mechanism (1) conveys the clean plate to the cutting station; S2, at the cutting station, the upper and lower planes and two sides of the purification plate are rolled by the first pair of rollers (23) and the second pair of rollers (24); S3, the electric guide rail (22) drives the cutting blade group (25) to move and remain relatively stationary with the purification plate. The cutting blade group (25) is used to cut the purification plate, wherein the first pair of rollers (23) and the second pair of rollers (24) are located on both sides of the cutting position. S4, after the cutting is completed, the first pair of rollers (23) and the second pair of rollers (24) pass through the cutting edge of the purification plate to roll the cutting edge; S5. During the cutting process, the second pair of rollers (24) detects whether there is a relative displacement between the purification plate and the cutting blade group (25). If there is, the cutting is stopped.

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