Impurity removing device for producing CTP plate base through cast rolling method

Abstract

The invention discloses an impurity removal device for producing a CTP plate base through a cast-rolling method, and relates to the technical field of cast-rolling aluminum strip production, the impurity removal device comprises a treatment box, the front end of the treatment box is rotationally connected with an electric telescopic rod, the output end of the electric telescopic rod is provided with a top cover, and the rear end of the top cover is hinged to the rear end of the treatment box; an upper partition plate is arranged on the left side of the interior of the treatment box, an impurity removal mechanism used for purifying molten aluminum is arranged in the upper partition plate, and air can be stably sprayed into the molten aluminum through an air supply rod and a fixing hole of the impurity removal mechanism. According to the impurity removing device for producing the CTP plate base through the cast-rolling method, a threaded rod can be driven to rotate through a synchronous belt wheel transmission mechanism, the threaded rod is in threaded connection with a movable block, and therefore the movable block can move synchronously and can drive a main scraping plate to move on the surface of molten aluminum in the moving process; and impurities on the surface of the molten aluminum can be collected and cleaned through the main scraping plate.

Description

Technical Field

[0001] This invention relates to the field of cast and rolled aluminum strip production technology, specifically to a purification device for producing CTP substrates by casting and rolling. Background Technology

[0002] In the process of producing CTP plate bases using the casting and rolling method, impurity removal is a core step in ensuring product quality. As the base of printing plates, the purity of the CTP plate base directly affects the adhesion of photosensitive or thermal coatings, the dot quality of printed materials, registration accuracy, and printing durability. Impurity removal devices can reduce surface defects of the plate base and lower rework costs. However, in practice, traditional impurity removal devices typically use filtration devices to remove impurities. In actual use, some impurities remain inside the molten aluminum and cannot be directly filtered out, affecting the final product quality when the molten aluminum is processed into the plate base.

[0003] To overcome the above-mentioned defects, existing technology 1 (Chinese patent No. CN104988336B, published on 2017-08-04) describes an operation method for an external degassing and slag removal device for molten aluminum. A support is installed on one side of the degassing box, and a rotating shaft fixing seat is installed around the support. A vertical rod is installed above the rotating shaft fixing seat, perpendicular to the support. A vertical sliding frame is installed around the rod, and a lifting rod is installed on one side of the vertical sliding frame, perpendicular to the rod. A fixing sleeve is installed at the end of the lifting rod, and a plum blossom rotor is installed inside the fixing sleeve. A transmission wheel is installed around the upper periphery of the plum blossom rotor. A power output mechanism is installed above the lifting rod, and a belt is installed between the power output mechanism and the transmission wheel. This method solves the defects of slag inclusion and gas passage in cast and rolled products by using nitrogen to treat the molten aluminum. The adsorption of compounds, slag, hydrogen, and oxygen within the aluminum melt is achieved through a plum blossom rotor, which purifies the molten aluminum. Nitrogen gas tumbles and floats within the molten aluminum, carrying the slag, hydrogen, and oxygen to the outside, thus purifying the molten aluminum. Existing technology two (Chinese patent CN219598035U, published on 2023-08-29) describes an aluminum melt degassing and filtration device for cast and rolled aluminum plates, comprising an aluminum melt tank, a filter chamber on the aluminum melt tank, a filter screen installed at the outlet end of the filter chamber, a slag discharge port corresponding to the filter screen on the inner wall of the filter chamber, and a first electric push rod corresponding to the slag discharge port installed on the filter chamber. The telescopic end of the first electric push rod extends into the filter chamber and is equipped with a hydraulic cylinder. The observation window allows for easy monitoring of the molten aluminum level within the filtration chamber. The hydraulic cylinder drives the slag removal shovel to rise and fall, adjusting its position to precisely remove slag from the molten aluminum, effectively improving slag removal efficiency and ensuring the casting and rolling quality of the aluminum plates. An air pump and air supply pipe deliver gas to the filtration chamber through the air outlet, effectively bringing hydrogen and impurities from the molten aluminum to its surface, thus significantly improving the equipment's impurity removal and venting efficiency.

[0004] The aforementioned mechanism uses nitrogen to adsorb and purify impurities inside the molten aluminum. However, in actual use, after removing the impurities, they remain on the surface of the cleaning components. Excessive impurity residue will gradually weaken the cleaning effect during subsequent impurity cleaning, affecting the impurity removal effect of the device in subsequent use. Summary of the Invention

[0005] The purpose of this invention is to provide a purification device for CTP substrate production by casting and rolling, in order to solve the problem mentioned in the background art that, in actual use, after removing impurities, impurities remain on the surface of the cleaning components. Excessive impurity residue will cause the cleaning effect to gradually weaken during subsequent impurity cleaning, thus affecting the purification effect of the device in subsequent use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a purification device for CTP substrate production by casting and rolling, comprising a processing box, an electric telescopic rod rotatably connected to the front end of the processing box, and a top cover installed at the output end of the electric telescopic rod, the rear end of the top cover being hinged to the rear end of the processing box; an upper partition plate is provided on the left side inside the processing box, and a purification mechanism for purifying molten aluminum is provided inside the upper partition plate, the air delivery rod and fixing hole included in the purification mechanism can stably spray air into the molten aluminum, so that impurities are adsorbed by nitrogen and float on the surface of the molten aluminum; a cleaning mechanism for scraping impurities is provided at the upper end inside the processing box, the main scraper included in the cleaning mechanism can scrape off impurities floating on the surface of the molten aluminum; a partition plate is provided on the right side inside the processing box; a purification port is opened at the rear end of the processing box, and a purification removal mechanism for removing impurities is provided inside the purification port, the impurity removal mechanism energizes the coil through the mutual contact between the second conductive plates, thereby causing the rotating plate to rotate and discharge the impurities.

[0007] Furthermore, a feed inlet is provided at the upper left end of the processing box, and a discharge outlet is provided at the lower right end of the processing box, with the feed inlet and the upper partition plate being positioned opposite each other.

[0008] Furthermore, the impurity removal mechanism includes a drive motor, which is located at the front end of the processing box. A hollow rod is installed at the output end of the drive motor, and air delivery rods are installed on both the left and right sides of the hollow rod. Fixing holes are evenly spaced on the surface of the air delivery rods.

[0009] Furthermore, the cleaning mechanism includes two threaded rods, both of which are located at the upper end inside the processing box. The two threaded rods are connected to each other via a synchronous belt pulley transmission mechanism. A movable block is threadedly connected to the outer side of each threaded rod, and a main scraper is hinged to the bottom end of the movable block. An auxiliary scraper is hinged to the rear end inside the processing box, and the position of the auxiliary scraper corresponds to the position of the main scraper.

[0010] Furthermore, corresponding first conductive plates are respectively provided on the left and right sides of the rear end of the main scraper and the rear end inside the processing box, and corresponding first electromagnets are respectively provided at the middle position of the rear end of the main scraper and the upper end of the rear end inside the processing box. Corresponding second electromagnets are provided at the top of the auxiliary scraper and the upper end inside the processing box.

[0011] Furthermore, a first torsion spring is wound around both the left and right sides of the main scraper, and a second torsion spring is wound around both the left and right sides of the auxiliary scraper.

[0012] Furthermore, the impurity removal mechanism includes a rotating plate, which is rotatably connected to the interior of the impurity removal port. The side of the impurity removal port is provided with a shape memory alloy, and the side of the shape memory alloy and the rear end of the processing box are both provided with corresponding second conductive sheets.

[0013] Furthermore, a fixing frame is provided on the outside of the impurity removal port, and a coil is wound around the outside of the fixing frame.

[0014] Furthermore, the shape memory alloy is wavy at room temperature and horizontally stretched at high temperature.

[0015] Furthermore, a reset spring is provided on each side of the second conductive sheet, and the second conductive sheet on the side of the shape memory alloy is slidably connected to the processing box.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. Molten aluminum is added into the processing tank through the feed inlet. Inside the tank, the upper partition plate performs initial filtration of large particles already present in the molten aluminum. Then, the output of the drive motor rotates, causing a hollow rod to rotate and allowing nitrogen gas to be introduced into the tank. The nitrogen gas adsorbs and treats the compound slag, hydrogen, and oxygen in the molten aluminum. Simultaneously, the nitrogen gas tumbles and floats within the molten aluminum, thus achieving stable cleaning of impurities. After purification, the impurities float on the surface of the molten aluminum, and a cleaning mechanism removes them, completing the impurity removal process.

[0017] Furthermore, by rotating the output end of the drive motor, the threaded rod can be driven to rotate through the synchronous belt pulley transmission mechanism. The threaded rod and the movable block are connected by threads, so the movable block will move synchronously. During the movement of the movable block, the main scraper will move on the surface of the aluminum liquid, and the main scraper can collect and clean the impurities on the surface of the aluminum liquid.

[0018] Furthermore, when the main scraper moves to the rear of the processing box, the first conductive plates on the left and right sides of the main scraper surface come into contact, making the circuit connected. This energizes the first electromagnet and generates magnetic force. The magnetic forces between the first electromagnet on the main scraper surface and the first electromagnet located at the rear of the processing box are of the same polarity and repel each other. This causes the bottom angle of the main scraper to deflect, and the first conductive plates come into contact. The circuit is connected, de-energizing the second electromagnet. The second electromagnets stop attracting each other, so that the auxiliary scraper hinged to the bottom of the second electromagnet is pushed out synchronously by the elastic force of the second torsion spring. The bottom of the auxiliary scraper contacts the surface of the main scraper and scrapes away the debris.

[0019] 2. As impurities accumulate at the impurity removal port, its temperature rises. This temperature rise causes the shape memory alloy to heat up simultaneously due to contact with the port. As the temperature rises, the shape memory alloy changes its shape from a wavy shape to a horizontally extended state. This change in shape pushes the second conductive sheet to the right. When the two conductive sheets come into contact, the coil is energized, causing the rotating plate to rotate. This rotation thoroughly cleans the impurities accumulated inside the impurity removal port, preventing impurities from remaining inside and affecting subsequent impurity processing.

[0020] Furthermore, when the internal impurity removal process stops, the temperature of the shape memory alloy drops, causing it to change from a stretched state to a wave-like state. This causes the second conductive sheets to separate and return to their initial positions through the elastic force of the reset spring, thus enabling the device to repeatedly clean impurities. Attached Figure Description

[0021] Figure 1 This is a front view structural diagram of the present invention.

[0022] Figure 2 This is a schematic diagram of the frontal cross-sectional structure of the present invention.

[0023] Figure 3 This is a side sectional view of the present invention.

[0024] Figure 4 This is a partially enlarged rear view of the impurity removal mechanism of the present invention.

[0025] Figure 5 This is a schematic diagram of the impurity removal mechanism of the present invention.

[0026] Figure 6 This is a schematic diagram of the structure of the impurity removal mechanism and the cleaning mechanism of the present invention.

[0027] Figure 7 This is a schematic diagram of the structure of the impurity removal mechanism and the cleaning mechanism of the present invention.

[0028] Figure 8 This is a schematic diagram of the impurity removal mechanism of the present invention.

[0029] Figure 9 This is a schematic diagram of the cleaning mechanism of the present invention.

[0030] In the diagram: 1. Processing box; 2. Top cover; 3. Feed inlet; 4. Discharge outlet; 5. Electric telescopic rod; 6. Upper partition plate; 7. Side partition plate; 8. Drive motor; 9. Hollow rod; 10. Air supply rod; 11. Fixing hole; 12. Threaded rod; 13. Movable block; 14. Main scraper; 15. First conductive sheet; 16. First electromagnet; 17. First torsion spring; 18. Auxiliary scraper; 19. Second electromagnet; 20. Second torsion spring; 21. Impurity removal port; 22. Rotating plate; 23. Fixing frame; 24. Coil; 25. Second conductive sheet; 26. Return spring; 27. Memory alloy. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Example 1: As Figure 1 - Figure 3 , Figure 6 and Figure 7 The technical solution shown addresses the problem that while filtration devices are typically used to remove impurities, some impurities remain inside the molten aluminum and cannot be directly filtered out, affecting the final product quality during subsequent plate-making. This impurity removal device for CTP plate production using the casting and rolling method discloses an impurity removal mechanism, including a processing box 1. An electric telescopic rod 5 is rotatably connected to the front end of the processing box 1, and a top cover 2 is installed at the output end of the electric telescopic rod 5. The rear end of the top cover 2 is hinged to the rear end of the processing box 1. An upper partition plate 6 is provided on the left side inside the processing box 1, and the interior of the upper partition plate 6 is equipped with a mechanism for removing impurities from the aluminum substrate. The impurity removal mechanism for liquid purification includes an air delivery rod 10 and a fixing hole 11, which can stably spray air into the interior of the molten aluminum, causing impurities to be adsorbed by nitrogen and float on the surface of the molten aluminum. The upper left side of the processing box 1 has an inlet 3, and the lower right side of the processing box 1 has an outlet 4, and the inlet 3 corresponds to the position of the upper partition plate 6. The impurity removal mechanism includes a drive motor 8, which is located at the front end of the processing box 1. A hollow rod 9 is installed at the output end of the drive motor 8, and air delivery rods 10 are installed on both the left and right sides of the hollow rod 9. Fixing holes 11 are evenly spaced on the surface of the air delivery rod 10.

[0033] In this example, molten aluminum is added to the processing tank 1 through the feed inlet 3. Inside the tank 1, the upper partition plate 6 performs preliminary filtration of large particles already present in the molten aluminum. Then, the output of the drive motor 8 rotates, causing the hollow rod 9 to rotate. Nitrogen gas is then introduced into the processing tank 1 through the hollow rod 9. The nitrogen gas adsorbs and treats the compound slag, hydrogen, and oxygen in the molten aluminum. Simultaneously, the nitrogen gas tumbles and floats within the molten aluminum, thus achieving stable cleaning of impurities and purifying the molten aluminum. After purification, impurities float on the surface of the molten aluminum. A cleaning mechanism is used to remove these impurities, thus completing the purification of the molten aluminum. In actual use, the air supply rod 10 set on the outside of the hollow rod 9 can fully react with the molten aluminum separated by the inner side of the upper partition plate 6, reducing impurities inside the molten aluminum. After the molten aluminum is thoroughly purified, the molten aluminum separated by the inner side of the upper partition plate 6 is transported through a pipeline to the space separated by the side partition plate 7 for secondary filtration. Finally, the molten aluminum filtered from the side partition plate 7 is discharged from the device through the discharge port 4, completing the purification of the molten aluminum.

[0034] Example 2: Figure 1 - Figure 3 , Figure 6 , Figure 7 and Figure 9 The technical solution shown addresses the problem that while nitrogen is used to adsorb and purify impurities inside molten aluminum, in actual use, after removing the impurities, they remain on the surface of the cleaning components. Excessive impurity residue weakens the cleaning effect during subsequent impurity removal, affecting the device's overall impurity removal efficiency. This impurity removal device for CTP substrate production using the casting and rolling method discloses a cleaning mechanism. The upper part of the processing tank 1 is equipped with a cleaning mechanism for scraping impurities. The main scraper 14 included in the cleaning mechanism can scrape impurities floating on the surface of the molten aluminum. A side partition plate 7 is provided on the right side inside the processing tank 1. The cleaning mechanism includes two threaded rods 12, both located at the upper part of the processing tank 1. The two are connected by a synchronous belt pulley transmission mechanism. The outer side of the threaded rod 12 is threaded with a movable block 13, and the bottom end of the movable block 13 is hinged with a main scraper 14. The rear end of the processing box 1 is hinged with an auxiliary scraper 18, and the position of the auxiliary scraper 18 corresponds to the position of the main scraper 14. The left and right sides of the rear end of the main scraper 14 and the rear end of the processing box 1 are respectively provided with corresponding first conductive plates 15. The middle position of the rear end of the main scraper 14 and the upper end of the rear end of the processing box 1 are respectively provided with corresponding first electromagnets 16. The top of the auxiliary scraper 18 and the upper end of the processing box 1 are respectively provided with corresponding second electromagnets 19. The left and right sides of the main scraper 14 are wound with first torsion springs 17, and the left and right sides of the auxiliary scraper 18 are wound with second torsion springs 20.

[0035] In this example, the output of the drive motor 8 rotates, which in turn drives the threaded rod 12 to rotate via the synchronous belt pulley transmission mechanism. The threaded rod 12 is threadedly connected to the movable block 13, so the movable block 13 moves synchronously. During its movement, the movable block 13 drives the main scraper 14 to move on the surface of the molten aluminum. The main scraper 14 collects and cleans impurities from the surface of the molten aluminum. When the main scraper 14 moves to the rear of the processing tank 1, the first conductive plates 15 on the left and right sides of the surface of the main scraper 14 come into contact, connecting the circuit and energizing the first electromagnet 16 to generate magnetic force. The magnetic forces of the first electromagnet 16 on the surface of the main scraper 14 and the first electromagnet 16 located at the rear of the processing tank 1 are in the same polarity and repel each other, thus causing... The angle of the bottom of the main scraper 14 deflects, and the first conductive plates 15 make contact, connecting the circuit and de-energizing the second electromagnet 19. The second electromagnets 19 stop attracting each other, so that the auxiliary scraper 18, which is hinged to the bottom of the second electromagnet 19, is pushed out synchronously by the elastic force of the second torsion spring 20. The bottom of the auxiliary scraper 18 contacts the surface of the main scraper 14 and scrapes away impurities. The de-energization of the second electromagnets 19 is temporary, and the de-energization time of the second electromagnets 19 can be controlled by a time relay. After the auxiliary scraper 18 scrapes and cleans the main scraper 14, the second electromagnets 19 are energized and continue to attract each other, so that the auxiliary scraper 18 resets its position. At the same time, the impurities scraped by the auxiliary scraper 18 are thrown down to the impurity removal port 21 and accumulate due to gravity.

[0036] Example 3: Figure 1 - Figure 5 , Figure 7 and Figure 8The technical solution shown addresses the problem that after impurity cleaning, impurities accumulate on the scraper surface, and most impurities are loose or viscous, easily adhering to the inner wall of the device or the stirring components, making them difficult to collect completely. This impurity removal device for CTP substrate production using the casting and rolling method discloses an impurity removal mechanism. The processing box 1 has an impurity removal port 21 at its rear end, and the port 21 contains an impurity removal mechanism for discharging impurities. This mechanism energizes the coil 24 through contact between the second conductive plates 25, causing the rotating plate 22 to rotate and discharge the impurities. The impurity removal mechanism includes a rotating plate... Plate 22, and rotating plate 22 is rotatably connected to the inside of impurity removal port 21. Shape memory alloy 27 is provided on the side of impurity removal port 21, and corresponding second conductive sheet 25 is provided on the side of shape memory alloy 27 and the rear end of processing box 1. Fixing frame 23 is provided on the outside of impurity removal port 21, and coil 24 is wound on the outside of fixing frame 23. Shape memory alloy 27 is wavy at room temperature and horizontally extended at high temperature. Reset spring 26 is provided on the side of the second conductive sheet 25, and the second conductive sheet 25 provided on the side of shape memory alloy 27 is slidably connected to processing box 1.

[0037] In this example, as impurities accumulate at the impurity removal port 21, its temperature rises. This temperature rise causes the shape memory alloy 27 to simultaneously heat up due to contact with the port. As the temperature increases, the shape memory alloy 27 changes its shape from a wavy to a horizontally extended state. This change in shape pushes the second conductive sheet 25 to the right. The contact between the second conductive sheets 25 energizes the coil 24, causing the rotating plate 22 to rotate. This rotation thoroughly cleans the impurities accumulated inside the impurity removal port 21, preventing them from remaining and affecting subsequent impurity processing. When the device stops impurity removal, the temperature of the shape memory alloy 27 drops, causing it to change from an extended to a wavy state. This separates the second conductive sheets 25, and the spring force of the return spring 26 restores them to their initial positions, thus achieving the device's reciprocating cleaning of impurities.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A purification device for producing CTP substrate by casting and rolling, comprising a processing box (1), wherein an electric telescopic rod (5) is rotatably connected to the front end of the processing box (1), and a top cover (2) is installed at the output end of the electric telescopic rod (5), wherein the rear end of the top cover (2) is hinged to the rear end of the processing box (1). Its features are: The processing box (1) has an upper partition plate (6) on the left side. The upper partition plate (6) has a cleaning mechanism for purifying the aluminum liquid. The cleaning mechanism includes an air delivery rod (10) and a fixing hole (11) which can stably spray air into the aluminum liquid, so that the impurities are adsorbed by nitrogen and float on the surface of the aluminum liquid. The upper end of the processing box (1) has a cleaning mechanism for scraping off impurities. The cleaning mechanism includes a main scraper (14) which can scrape off impurities floating on the surface of the aluminum liquid. The processing box (1) has a side partition plate (7) on the right side. The processing box (1) has a cleaning port (21) at the rear end. The cleaning port (21) has an impurity removal mechanism for removing impurities. The impurity removal mechanism makes the coil (24) energized by the contact between the second conductive plates (25), which in turn makes the rotating plate (22) rotate and discharge the impurities.

2. The impurity removal device for CTP plate base production by casting and rolling according to claim 1, characterized in that: The upper left side of the processing box (1) is provided with a feed inlet (3), and the lower right side of the processing box (1) is provided with a discharge outlet (4). The positions of the feed inlet (3) and the upper partition plate (6) correspond to each other.

3. The impurity removal device for CTP plate base production by casting and rolling according to claim 2, characterized in that: The impurity removal mechanism includes a drive motor (8), and the drive motor (8) is located at the front end of the processing box (1). A hollow rod (9) is installed at the output end of the drive motor (8), and air delivery rods (10) are installed on both the left and right sides of the hollow rod (9). Fixing holes (11) are opened at equal intervals on the surface of the air delivery rods (10).

4. The impurity removal device for CTP plate base production by casting and rolling according to claim 3, characterized in that: The cleaning mechanism includes two threaded rods (12), and both threaded rods (12) are located at the upper end inside the processing box (1). The two threaded rods (12) are connected to each other by a synchronous belt pulley transmission mechanism. A movable block (13) is threadedly connected to the outer side of the threaded rod (12), and a main scraper (14) is hinged to the bottom end of the movable block (13). An auxiliary scraper (18) is hinged to the rear end inside the processing box (1), and the position of the auxiliary scraper (18) corresponds to the position of the main scraper (14).

5. The impurity removal device for CTP plate base production by casting and rolling according to claim 4, characterized in that: The left and right sides of the rear end of the main scraper (14) and the rear end inside the processing box (1) are respectively provided with corresponding first conductive plates (15). The middle position of the rear end of the main scraper (14) and the upper end of the rear end inside the processing box (1) are respectively provided with corresponding first electromagnets (16). The top of the auxiliary scraper (18) and the upper end inside the processing box (1) are respectively provided with corresponding second electromagnets (19).

6. The impurity removal device for CTP plate base production by casting and rolling according to claim 5, characterized in that: The main scraper (14) is wound with a first torsion spring (17) on both the left and right sides, and the auxiliary scraper (18) is wound with a second torsion spring (20) on both the left and right sides respectively.

7. The impurity removal device for CTP plate base production by casting and rolling according to claim 6, characterized in that: The impurity removal mechanism includes a rotating plate (22), which is rotatably connected to the interior of the impurity removal port (21). A shape memory alloy (27) is provided on the side of the impurity removal port (21), and a corresponding second conductive sheet (25) is provided on the side of the shape memory alloy (27) and the rear end of the processing box (1).

8. The impurity removal device for CTP plate base production by casting and rolling according to claim 7, characterized in that: A fixing frame (23) is provided on the outside of the impurity removal port (21), and a coil (24) is wound on the outside of the fixing frame (23).

9. The impurity removal device for CTP plate base production by casting and rolling according to claim 8, characterized in that: The shape memory alloy (27) is wavy at room temperature and horizontally stretched at high temperature.

10. The impurity removal device for CTP plate base production by casting and rolling according to claim 9, characterized in that: The second conductive sheet (25) is provided with a reset spring (26) on each side, and the second conductive sheet (25) provided on the side of the memory alloy (27) is slidably connected to the processing box (1).

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