A high surface hardness weather-resistant PC sheet and its processing technology

Abstract

The present invention discloses a weather-resistant PC sheet with high surface hardness and its processing technology, which relates to the technical field of PC sheet processing, and includes the following steps: adding PC resin and acrylate resin into the extrusion mechanism of the extrusion molding equipment respectively, and extruding through a die head to obtain a PC sheet; then cutting the extruded PC sheet by a cutting mechanism; finally, pushing the cut PC sheet to a cooling mechanism for drying. Through the setting of the cooling mechanism in this application, the cooling of the sheet is more uniform and the cooling effect is better. The setting of the cutting mechanism in this application facilitates fixed-length cutting and can adjust the angle of the cutting tool, which is convenient to use; through the setting of the bottom support plate, the top plate and the second spring, it is convenient to extrude the sheet to improve its flatness, and the two sides are limited by the limiting side plates, so that it is not easy to move during cutting and is more accurate.

Description

Technical Field

[0001] The present invention relates to the technical field of PC sheet processing, and particularly relates to a high surface hardness weather-resistant PC sheet and its processing technology. Background Art

[0002] Due to its good transparency and high strength, PC has a wide application in the field of sheets. During the processing of PC sheets, corresponding equipment is required for steps such as extrusion and cutting. In the Chinese Utility Model Patent CN216330218U, a PC board thermoforming production line is disclosed. This production line first grinds the edge parts of the strip-shaped PC sheet to be flat and then cuts it to ensure the production quality of the PC board. However, this production line can only perform cutting and cannot carry out multiple processing technological processes simultaneously. Summary of the Invention

[0003] The purpose of the present invention is to provide a high surface hardness weather-resistant PC sheet and its processing technology, and solve the following technical problems: The existing production line can only perform cutting and cannot carry out multiple processing technological processes simultaneously.

[0004] The purpose of the present invention can be achieved by the following technical solutions:

[0005] A high surface hardness weather-resistant PC sheet and its processing technology include the following steps: adding PC resin and acrylate resin into the extrusion mechanism of the extrusion molding equipment respectively, extruding through the die head to obtain a PC board; then cutting the extruded PC sheet by the cutting mechanism; finally, pushing the cut PC sheet to the cooling mechanism for drying.

[0006] As a further solution of the present invention: The extrusion molding equipment includes: supporting side plates, an extrusion mechanism, a cutting mechanism, and a cooling mechanism. The extrusion mechanism is fixedly installed on the top of the two supporting side plates. A cutting mechanism is fixedly installed on one side of the extrusion mechanism, and a cooling mechanism is arranged on one side of the supporting side plate;

[0007] The extrusion mechanism includes a mounting plate fixedly installed on the supporting side plate. A feeding funnel is fixedly installed on the top of the mounting plate. A grinding motor is fixedly installed on one side of the mounting plate. A first gear is fixedly installed on the output shaft of the grinding motor. The first gear is meshed with a second gear. Grinding rollers are fixedly installed on both the first gear and the second gear. The two grinding rollers are arranged in parallel and penetrate through the feeding funnel;

[0008] One side of the mounting plate is fixedly installed with a first reducer, the top of the first reducer is fixedly installed with an extrusion motor, one side of the first reducer is fixedly installed with a discharge pipe, the discharge pipe is located below the feeding funnel, and a feeding port is arranged on the discharge pipe. An extrusion screw is arranged inside the discharge pipe, one end of the extrusion screw is connected with the first reducer, and a die head is fixedly installed at the end of the discharge pipe.

[0009] As a further scheme of the present invention: a feeding box is fixedly installed at the top of the feeding funnel. A fast feeding funnel and a slow feeding funnel are fixedly installed inside the feeding box. A second cylinder is obliquely installed on one side of the fast feeding funnel. A rotating shaft is installed on the piston rod of the second cylinder. L-shaped rotating plates are installed at both ends of the rotating shaft. One end of the L-shaped rotating plate is rotatably connected with the fast feeding funnel. An arc-shaped baffle is installed between the two L-shaped rotating plates, and the arc-shaped baffle is adapted to the discharge port of the fast feeding funnel;

[0010] A discharge chute is arranged at the bottom of the slow feeding funnel. The bottom of the discharge chute is connected with a vibrator through a support plate. A feeding port is opened at the bottom of the feeding box.

[0011] As a further scheme of the present invention: first cylinders are fixedly installed on both sides of the inner wall of the die head. A connecting plate is fixedly installed at the end of the piston rod of the first cylinder. Moving rods are movably connected to both sides of the connecting plate. The end of the moving rod is movably connected with a closing plate, and one end of the closing plate is movably connected with the inner wall of the die head.

[0012] As a further scheme of the present invention: one side of the closing plate is connected with the inner wall of the die head through a first spring.

[0013] As a further scheme of the present invention: the cutting mechanism includes a mounting frame fixedly installed on the supporting side plate. An inverted U-shaped plate is fixedly installed on the mounting frame. A driving motor is fixedly installed on the top of the U-shaped plate. A second reducer is fixedly installed on the output shaft of the driving motor. Eccentric wheels are connected to both sides of the second reducer through transmission shafts. Eccentric rods are installed on the eccentric wheels. A connecting shaft penetrates between the two eccentric rods. Rotating blocks are sleeved at both ends of the connecting shaft. Cutting knives are installed on the two rotating blocks.

[0014] As a further scheme of the present invention: sliders are installed at both ends of the connecting shaft and outside the rotating blocks. The sliders are slidably connected with slide rails arranged on the inner wall of the U-shaped plate. Adjusting grooves are obliquely arranged on the inner wall of the U-shaped plate. The slide rails are fixed on the adjusting grooves through bolts.

[0015] As a further solution of the present invention: a top plate is fixedly installed on the mounting frame, a plurality of guide columns are inserted into the bottom of the top plate, a second spring is sleeved on the guide columns, the bottom of the guide columns is fixedly installed with a pressing plate, two limiting side plates are symmetrically installed at the bottom of the pressing plate, the limiting side plates are inserted into the bottom support plate installed on the mounting frame, and the length of the bottom support plate is twice the length of the top plate.

[0016] As a further solution of the present invention: the cooling mechanism includes two U-shaped brackets, a cooling pipe is rotatably connected to the two U-shaped brackets, a rotating motor is fixedly installed on each of the two U-shaped brackets, a gear set is fixedly installed on the output shaft of the rotating motor, the gear set is meshed with a toothed ring on the cooling pipe, the cooling pipe is of a hollow structure, and a plurality of ventilation holes are uniformly formed on the inner wall of the cooling pipe. Coolers are fixedly installed at both ends of the cooling pipe through pipes. Support frames are arranged at both ends of the cooling pipe, a plurality of guide rollers are uniformly installed on the support frames, and a plurality of guide rods of different lengths are inserted into both sides of the support frames. A third spring is sleeved on the guide rods, and a blocking ball is arranged at the end of the guide rod, and the blocking ball is adapted to the ventilation holes.

[0017] As a further solution of the present invention: a high surface hardness weather-resistant PC sheet is prepared by using a processing process of a high surface hardness weather-resistant PC sheet.

[0018] The beneficial effects of the present invention:

[0019] The present invention improves the flatness of the product, and the thickness difference (the difference between the maximum thickness and the minimum thickness) is less than 0.1 mm; it improves the cooling effect and flatness. According to GB9656, the light distortion ≤ 2′, and according to GB11614, the optical deformation incident angle ≥ 50°; it improves the surface hardness and wear resistance, and the pencil hardness reaches above 3H. The product has excellent wear resistance. According to ASTM D1044, the Taber wear haze change ≤ 2%; higher flatness and cooling annealing effect, effectively reducing internal stress, making the product have excellent impact resistance. According to ISO 6603-2, the maximum penetration force reaches above 30000 N;

[0020] Through the setting of the cooling mechanism in this application, the cooling of the sheet is more uniform and the cooling effect is better.

[0021] The setting of the cutting mechanism in this application facilitates fixed-length cutting and can adjust the angle of the cutting knife, which is convenient to use; through the setting of the bottom support plate, the top plate and the second spring, it is convenient to extrude the sheet to improve its flatness, and the two sides are limited by the limiting side plates, so it is not easy to move during cutting and is more accurate.

[0022] This application drives cylinder one to move through a connecting plate, thereby driving the movement of the movable rod, and then pushing the closing plate to open and close. At this time, the opening size of the closing plate can be adjusted, which is convenient for extruding plates with different thicknesses and is easy to use.

[0023] Through the settings of structures such as the fast material funnel and slow material funnel inside the feeding box in this application, it is convenient to carry out proportioning and control the feeding rate, realizing fast feeding and slow feeding, and avoiding blockage inside the extrusion mechanism. Brief Description of the Drawings

[0024] The present invention will be further described below in conjunction with the drawings.

[0025] Figure 1 It is a schematic structural diagram of the whole of the present invention;

[0026] Figure 2 It is a schematic structural diagram of the whole extrusion mechanism of the present invention;

[0027] Figure 3 It is a schematic internal structure diagram of the die head of the present invention;

[0028] Figure 4 It is a schematic internal structure diagram of the feeding box of the present invention;

[0029] Figure 5 It is a schematic structural diagram of the whole cutting mechanism of the present invention;

[0030] Figure 6 It is a front view structural diagram of the cutting mechanism of the present invention;

[0031] Figure 7 It is a schematic structural diagram of the whole cooling mechanism of the present invention;

[0032] Figure 8 It is a front view structural diagram of the cooling mechanism of the present invention.

[0033] In the figure: 1, support side plate; 2, extrusion mechanism; 3, cutting mechanism; 4, cooling mechanism; 21, feed box; 22, mounting plate; 23, grinding motor; 24, extrusion motor; 25, reducer I; 26, gear I; 27, feed funnel; 28, grinding roller; 29, extrusion screw; 210, die head; 230, discharge pipe; 2101, cylinder I; 2102, connecting plate; 2103, movable rod; 2104, closing plate; 2105, spring I; 211, fast material funnel; 212, slow material funnel; 213, discharge chute; 214, support plate; 215, vibrator; 216, arc-shaped baffle; 217, L-shaped rotating plate; 218, cylinder II; 219, rotating shaft; 220, feed inlet; 31, mounting frame; 32, U-shaped plate; 33, driving motor; 34, reducer II; 35, eccentric wheel; 36, adjustment slot; 37, slide rail; 38, slider; 39, rotating block; 310, eccentric rod; 311, cutting knife; 312, connecting shaft; 313, top plate; 314, spring II; 315, guide post; 316, extrusion plate; 317, limit side plate; 318, bottom support plate; 41, U-shaped bracket; 42, cooling pipe; 43, support frame; 44, guide roller; 45, rotating motor; 46, gear set; 47, toothed ring; 48, ventilation hole; 49, blocking ball; 410, spring III; 411, guide rod; 412, cooler. Detailed implementation mode

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0035] Embodiment 1

[0036] Please refer to Figure 1-2 As shown, the present invention is a processing technology for weather-resistant PC plates with high surface hardness, including the following steps: adding PC resin and acrylate resin into the extrusion mechanism 2 of the extrusion molding equipment respectively, extruding through the die head 210 to obtain PC plates; then cutting the extruded PC plates by the cutting mechanism 3; finally, pushing the cut PC plates to the cooling mechanism 4 for cooling. The PC resin uses medium-high viscosity PC resin with a molecular weight between 23,000 and 28,000, such as Covestro Chemical PCET3117 in Germany; the acrylate resin is a special low molecular weight acrylic copolymer with a weight average molecular weight between 10,000 and 13,000. The thickness of the co-extrusion layer of the PC plate is 10 μm to 100 μm.

[0037] The extrusion molding equipment includes: supporting side plates 1, an extrusion mechanism 2, a cutting mechanism 3, and a cooling mechanism 4. An extrusion mechanism 2 is fixedly installed at the top of the two supporting side plates 1. A cutting mechanism 3 is fixedly installed on one side of the extrusion mechanism 2. A cooling mechanism 4 is arranged on one side of the supporting side plate 1;

[0038] The extrusion mechanism 2 includes a mounting plate 22 fixedly installed on the supporting side plate 1. A feeding funnel 27 is fixedly installed at the top of the mounting plate 22. A grinding motor 23 is fixedly installed on one side of the mounting plate 22. A first gear 26 is fixedly installed on the output shaft of the grinding motor 23. The first gear 26 is meshed and connected with a second gear. Grinding rollers 28 are fixedly installed on both the first gear 26 and the second gear. The two grinding rollers 28 are arranged in parallel and penetrate through the feeding funnel 27;

[0039] A first reducer 25 is fixedly installed on one side of the mounting plate 22. An extrusion motor 24 is fixedly installed at the top of the first reducer 25. A discharge pipe 230 is fixedly installed on one side of the first reducer 25. The discharge pipe 230 is located below the feeding funnel 27, and a feeding port is arranged on the discharge pipe 230. An extrusion screw 29 is arranged inside the discharge pipe 230. One end of the extrusion screw 29 is connected to the first reducer 25. A die head 210 is fixedly installed at the end of the discharge pipe 230.

[0040] Drive the grinding motor 23 to drive the first gear 26 to rotate. The first gear 26 drives the second gear to rotate, and then drives the grinding rollers 28 to rotate. The grinding rollers 28 grind the raw materials. The ground materials enter the discharge pipe 230, are heated by a heating element, the extrusion screw 29 extrudes, and is formed through the die head 210.

[0041] Embodiment 2

[0042] Please refer to Figure 3 As shown, on both sides of the inner wall of the die head 210, a first cylinder 2101 is fixedly installed. A connecting plate 2102 is fixedly installed at the end of the piston rod of the first cylinder 2101. Moving rods 2103 are movably connected to both sides of the connecting plate 2102. A closing plate 2104 is movably connected to the end of the moving rod 2103. One end of the closing plate 2104 is movably connected to the inner wall of the die head 210. A discharge opening is arranged on one side of the die head 210. One side of the closing plate 2104 is connected to the inner wall of the die head 210 through a first spring 2105. Through the arrangement of the first spring 2105, its movement is ensured to be more stable.

[0043] Drive the first cylinder 2101, move through the connecting plate 2102, and then drive the moving rod 2103 to move, and then push the closing plate 2104 to open and close. At this time, the opening size of the closing plate 2104 can be adjusted to facilitate extruding plates with different thicknesses, which is convenient for use.

[0044] Example 3

[0045] Please refer to Figure 4 As shown, a feed hopper 21 is fixedly installed at the top of the feed funnel 27. A fast material funnel 211 and a slow material funnel 212 are fixedly installed inside the feed hopper 21. A cylinder two 218 is inclinedly installed on one side of the fast material funnel 211. A rotating shaft 219 is installed on the piston rod of the cylinder two 218. L-shaped rotating plates 217 are installed at both ends of the rotating shaft 219. One end of the L-shaped rotating plate 217 is rotatably connected to the fast material funnel 211. An arc-shaped baffle 216 is installed between the two L-shaped rotating plates 217. The arc-shaped baffle 216 is adapted to the discharge port of the fast material funnel 211; a discharge inclined groove 213 is arranged at the bottom of the slow material funnel 212. The bottom of the discharge inclined groove 213 is connected to a vibrator 215 through a support plate 214. A feed port 220 is opened at the bottom of the feed hopper 21.

[0046] Add PC resin and acrylate resin into the fast material funnel 211 and the slow material funnel 212 respectively, and feeding can be carried out separately. Drive the cylinder two 218 to push the rotating shaft 219 to move, and then push the L-shaped rotating plate 217 to rotate, and then drive the arc-shaped baffle 216 to rotate for discharging. At the same time, start the vibrator 215 to drive the discharge inclined groove 213 to vibrate to accelerate the feeding; when it is not necessary to accelerate the feeding, part of the arc-shaped baffle 216 can be closed or the vibrator 215 can be stopped; this structure is not only applicable to two different raw materials, but also applicable to the feeding of the same raw material. Fast feeding and slow feeding are realized through the fast material funnel 211 and the slow material funnel 212.

[0047] Example 4

[0048] Please refer to Figure 5-6 As shown, the cutting mechanism 3 includes a mounting frame 31 fixedly installed on the support side plate 1. An inverted U-shaped plate 32 is fixedly installed on the mounting frame 31. A driving motor 33 is fixedly installed on the top of the U-shaped plate 32. A reducer two 34 is fixedly installed on the output shaft of the driving motor 33. Eccentric wheels 35 are connected to both sides of the reducer two 34 through transmission shafts. An eccentric rod 310 is installed on the eccentric wheel 35. A connecting shaft 312 is arranged through between the two eccentric rods 310. Rotating blocks 39 are sleeved at both ends of the connecting shaft 312. A cutter 311 is installed on the two rotating blocks 39.

[0049] Start the driving motor 33. After decelerating through the reducer two 34, drive the two eccentric wheels 35 to rotate, and then drive the connecting shaft 312 to move up and down. The connecting shaft 312 drives the cutter 311 to move up and down through the rotating block 39 to cut the plate, which is convenient for fixed-length cutting.

[0050] Sliders 38 are installed at both ends of the connecting shaft 312 and outside the rotating block 39. The sliders 38 are slidably connected to the slide rails 37 provided on the inner wall of the U-shaped plate 32. Adjusting grooves 36 inclinedly arranged are formed on the inner walls of the U-shaped plates 32. The slide rails 37 are fixed to the adjusting grooves 36 by bolts. Through the arrangement of the slide rails 37 and the sliders 38, the moving stability of the cutter 311 can be ensured. Through the arrangement of the adjusting grooves 36, the angle of the slide rails 37 can be adjusted, and then the angle of the cutter 311 can be adjusted, which is convenient for use.

[0051] A top plate 313 is fixedly installed on the mounting frame 31. A plurality of guide posts 315 are inserted at the bottom of the top plate 313. A second spring 314 is sleeved on the guide posts 315. An extrusion plate 316 is fixedly installed at the bottom of the guide posts 315. Two limiting side plates 317 are symmetrically installed at the bottom of the extrusion plate 316. The limiting side plates 317 are inserted into the bottom support plate 318 installed on the mounting frame 31. The length of the bottom support plate 318 is twice the length of the top plate 313, which not only plays a role in conveying, but also plays a supporting role during cutting. Through the arrangement of the bottom support plate 318, the top plate 313 and the second spring 314, it is convenient to extrude the plate to improve its flatness, and the two sides are limited by the limiting side plates 317, so it is not easy to move during cutting and is more accurate.

[0052] Embodiment 5

[0053] Please refer to Figure 7-8 As shown, the cooling mechanism 4 includes two U-shaped brackets 41. A cooling pipe 42 is rotatably connected to the two U-shaped brackets 41. A rotary motor 45 is fixedly installed on each of the two U-shaped brackets 41. A gear set 46 is fixedly installed on the output shaft of the rotary motor 45. The gear set 46 is meshed with a toothed ring 47 on the cooling pipe 42. The toothed ring 47 is fixedly installed on the cooling pipe 42. The cooling pipe 42 is of a hollow structure, and a plurality of ventilation holes 48 are uniformly formed on the inner wall of the cooling pipe 42. Coolers 412 are fixedly installed at both ends of the cooling pipe 42 through pipes. Support frames 43 are arranged at both ends of the cooling pipe 42. A plurality of guide rollers 44 are uniformly installed on the support frames 43. A plurality of guide rods 411 of different lengths are inserted on both sides of the support frames 43. A third spring 410 is sleeved on the guide rods 411. A blocking ball 49 is arranged at the end of the guide rod 411. The blocking ball 49 is adapted to the ventilation holes 48.

[0054] Driven by the pushing of the plate, they are conveyed one by one onto the guiding roller 44, and then the rotating motor 45 is started. The gear ring 47 is driven to rotate through the gear set 46, and the gear ring 47 drives the cooling pipe 42 to rotate. The cooling pipe 42 can rotate intermittently. At the same time, ventilation is carried out through the cooler 412, and exhaust cooling is carried out through the ventilation holes 48 to cool the plate comprehensively. At the same time, through the setting of the blocking ball 49, the spring three 410 and the guiding rod 411, when the ventilation hole 48 rotates to the position of the blocking ball 49, the blocking ball 49 blocks part of the ventilation holes 48, so that fewer ventilation holes 48 are opened on both sides, and thus the air volume is reduced, making the overall cooling more uniform. It avoids the same air volume, a greater distance between the upper and lower positions with a worse cooling effect, and a closer distance on both sides with a better cooling effect.

[0055] A weather-resistant PC plate with high surface hardness is prepared by using the processing technology of the weather-resistant PC plate with high surface hardness.

[0056] The working principle of the present invention:

[0057] The PC resin and the acrylate resin are respectively added into the fast material hopper 211 and the slow material hopper 212, and feeding can be carried out separately. The driving cylinder two 218 is driven to push the rotating shaft 219 to move, and then the L-shaped rotating plate 217 is pushed to rotate, and then the arc-shaped baffle 216 is driven to rotate for discharging. At the same time, the vibrator 215 is started to drive the discharging inclined chute 213 to vibrate to accelerate the discharging. When it is not necessary to accelerate the discharging, part of the arc-shaped baffle 216 can be closed or the vibrator 215 can be stopped. This structure is not only applicable to two different raw materials, but also applicable to the discharging of the same raw material. Fast discharging and slow discharging are realized through the fast material hopper 211 and the slow material hopper 212.

[0058] The driving grinding motor 23 is driven to drive the gear one 26 to rotate. The gear one 26 drives the gear two to rotate, and then the grinding roller 28 is driven to rotate. The grinding roller 28 grinds the raw materials. The materials after grinding enter the discharging pipe 230, are heated by the heating element, extruded by the extrusion screw 29, and formed through the die head 210.

[0059] The driving motor 33 is started. After being decelerated by the reducer two 34, it drives the two eccentric wheels 35 to rotate, and then drives the connecting shaft 312 to move up and down. The connecting shaft 312 drives the cutting knife 311 to move up and down through the rotating block 39 to cut the plate, which is convenient for fixed-length cutting.

[0060] Driven by the plate, they are conveyed one by one onto the guiding roller 44, and then the rotating motor 45 is started. The gear set 46 drives the gear ring 47 to rotate, and the gear ring 47 drives the cooling pipe 42 to rotate. The cooling pipe 42 can rotate intermittently. At the same time, ventilation is carried out through the cooler 412, and exhaust cooling is carried out through the ventilation holes 48 to cool the plate comprehensively. At the same time, through the setting of the blocking ball 49, the spring three 410 and the guiding rod 411, when the ventilation hole 48 rotates to the position of the blocking ball 49, the blocking ball 49 blocks part of the ventilation holes 48, so that fewer ventilation holes 48 are opened on both sides, and thus the air volume is reduced, making the overall cooling more uniform. It avoids the same air volume, the upper and lower positions are far away, the cooling effect is poor, and the two sides are closer, and the cooling effect is better.

[0061] The above has described in detail an embodiment of the present invention, but the content described is only a preferred embodiment of the present invention and cannot be considered as limiting the scope of implementation of the present invention. Any equivalent changes and improvements made within the scope of the application of the present invention shall still fall within the scope covered by the patent of the present invention.

Claims

1. A processing technology for a weather-resistant PC board with high surface hardness, characterized in that, It includes the following steps: Add PC resin and acrylate resin into the extrusion mechanism (2) of the extrusion molding equipment respectively, extrude through the die head (210) to obtain a PC board; then cut the extruded PC board by the cutting mechanism (3); finally, push the cut PC board to the cooling mechanism (4) for drying; The extrusion molding equipment includes: supporting side plates (1), an extrusion mechanism (2), a cutting mechanism (3), and a cooling mechanism (4). The extrusion mechanism (2) is fixedly installed at the top of two supporting side plates (1). A cutting mechanism (3) is fixedly installed on one side of the extrusion mechanism (2). A cooling mechanism (4) is arranged on one side of the supporting side plate (1); The extrusion mechanism (2) includes a mounting plate (22) fixedly installed on the supporting side plate (1). A feed hopper (27) is fixedly installed at the top of the mounting plate (22). A grinding motor (23) is fixedly installed on one side of the mounting plate (22). A first gear (26) is fixedly installed on the output shaft of the grinding motor (23). The first gear (26) is meshed and connected with a second gear. Grinding rollers (28) are fixedly installed on both the first gear (26) and the second gear. The two grinding rollers (28) are arranged in parallel and penetrate through the feed hopper (27); A first reducer (25) is fixedly installed on one side of the mounting plate (22). An extrusion motor (24) is fixedly installed at the top of the first reducer (25). A discharge pipe (230) is fixedly installed on one side of the first reducer (25). The discharge pipe (230) is located below the feed hopper (27), and a feed port is arranged on the discharge pipe (230). An extrusion screw (29) is arranged inside the discharge pipe (230). One end of the extrusion screw (29) is connected with the first reducer (25). A die head (210) is fixedly installed at the end of the discharge pipe (230); The cooling mechanism (4) includes two U-shaped brackets (41). A cooling pipe (42) is rotatably connected to the two U-shaped brackets (41). Rotary motors (45) are fixedly installed on both the two U-shaped brackets (41). A gear set (46) is fixedly installed on the output shaft of the rotary motor (45). The gear set (46) is meshed and connected with a toothed ring (47) on the cooling pipe (42). The cooling pipe (42) is of a hollow structure, and a plurality of ventilation holes (48) are evenly arranged on the inner wall of the cooling pipe (42). Coolers (412) are fixedly installed at both ends of the cooling pipe (42) through pipes. Support frames (43) are arranged at both ends of the cooling pipe (42). A plurality of guide rollers (44) are evenly installed on the support frames (43). A plurality of guide rods (411) of different lengths are inserted on both sides of the support frames (43). A third spring (410) is sleeved on the guide rods (411). A blocking ball (49) is arranged at the end of the guide rod (411). The blocking ball (49) is adapted to the ventilation holes (48).

2. The processing technology of a high surface hardness weather-resistant PC board according to claim 1, characterized in that, The top of the feeding funnel (27) is fixedly installed with a feeding box (21). Inside the feeding box (21), a fast-material funnel (211) and a slow-material funnel (212) are fixedly installed. On one side of the fast-material funnel (211), a second cylinder (218) is installed obliquely. A rotating shaft (219) is installed on the piston rod of the second cylinder (218). At both ends of the rotating shaft (219), L-shaped rotating plates (217) are installed. One end of the L-shaped rotating plate (217) is rotatably connected to the fast-material funnel (211). An arc-shaped baffle (216) is installed between the two L-shaped rotating plates (217). The arc-shaped baffle (216) is adapted to the discharge port of the fast-material funnel (211). The bottom of the slow-material funnel (212) is provided with a discharge chute (213). The bottom of the discharge chute (213) is connected to a vibrator (215) through a support plate (214). A feeding port (220) is opened at the bottom of the feeding box (21).

3. The processing technology of a high surface hardness weather-resistant PC sheet according to claim 2, characterized in that, On both sides of the inner wall of the die head (210), a first cylinder (2101) is fixedly installed. The end of the piston rod of the first cylinder (2101) is fixedly installed with a connecting plate (2102). On both sides of the connecting plate (2102), movable rods (2103) are movably connected. The end of the movable rod (2103) is movably connected to a closing plate (2104). One end of the closing plate (2104) is movably connected to the inner wall of the die head (210).

4. The processing technology of a high surface hardness weather-resistant PC board according to claim 3, characterized in that, One side of the closing plate (2104) is connected to the inner wall of the die head (210) through a first spring (2105).

5. The processing technology of a high surface hardness weather-resistant PC sheet according to claim 1, characterized in that, The cutting mechanism (3) includes a mounting frame (31) fixedly installed on the support side plate (1). On the mounting frame (31), an inverted U-shaped plate (32) is fixedly installed. A driving motor (33) is fixedly installed on the top of the U-shaped plate (32). A second reducer (34) is fixedly installed on the output shaft of the driving motor (33). Eccentric wheels (35) are connected to both sides of the second reducer (34) through transmission shafts. An eccentric rod (310) is installed on the eccentric wheel (35). A connecting shaft (312) is arranged through between the two eccentric rods (310). Rotating blocks (39) are sleeved at both ends of the connecting shaft (312). A cutting knife (311) is installed on the two rotating blocks (39).

6. The processing technology of a high surface hardness weather-resistant PC board according to claim 5, characterized in that, Sliders (38) are installed at both ends of the connecting shaft (312) and outside the rotating blocks (39). The sliders (38) are slidably connected to slide rails (37) arranged on the inner wall of the U-shaped plate (32). Adjusting grooves (36) which are obliquely arranged are opened on the inner walls of the U-shaped plate (32). The slide rails (37) are fixed to the adjusting grooves (36) through bolts.

7. The processing technology of a high surface hardness weather-resistant PC sheet according to claim 5, characterized in that, A top plate (313) is fixedly installed on the mounting frame (31). A plurality of guide columns (315) are inserted into the bottom of the top plate (313). A second spring (314) is sleeved on the guide columns (315). The bottom of the guide column (315) is fixedly installed with a pressing plate (316). Two limiting side plates (317) are symmetrically installed at the bottom of the pressing plate (316). The limiting side plates (317) are inserted into a bottom support plate (318) installed on the mounting frame (31). The length of the bottom support plate (318) is twice the length of the top plate (313).

8. A weather-resistant PC sheet with high surface hardness, characterized in that, It is prepared by using the processing technology of the high surface hardness weather-resistant PC sheet according to any one of claims 1-7.

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