A production line extrusion device for processing PC board material

Abstract

This invention discloses an extrusion equipment for a PC sheet processing production line, relating to the field of PC sheet processing technology. It includes a conveying channel, an extrusion die head, and a three-roll calender. An intermediate processing mechanism is provided between the conveying channel and the extrusion die head, and this mechanism includes an intermediate frame fixedly connected to the side of the conveying channel near the extrusion die head. The extrusion equipment for a PC sheet processing production line disclosed in this invention features the following: after the molten material is conveyed into the intermediate frame, a lifting cylinder drives a lifting pressure frame to press the molten material in. Then, an adjusting cylinder moves a diamond-shaped pressure block downwards, which presses against a triangular block, causing the extrusion rod to be pushed out from the ejector hole, creating holes at various positions in the molten material. Simultaneously, a reciprocating hydraulic cylinder drives an impact block to continuously strike a sliding impact rod, transmitting the vibration to the molten material through a vibrating plate, accelerating the discharge of residual gas from the holes, thereby improving the overall quality of the PC sheet.

Description

Technical Field

[0001] This invention relates to the field of PC sheet processing technology, and in particular to an extrusion equipment for a PC sheet processing production line. Background Technology

[0002] PC (polycarbonate) sheets are widely used in building lighting, agricultural greenhouses, traffic noise barriers, electronic and electrical protection, and advertising light boxes due to their excellent light transmittance, impact resistance, weather resistance, and lightweight and high strength. At present, the mainstream production process of PC sheets mainly includes raw material drying, melt extrusion, three-roll calendering, cooling and shaping, traction trimming and film packaging, among which the extrusion equipment is the core of the entire production line.

[0003] During the extrusion process of PC sheets, some of the gas in the molten material escapes into the conveying channel and is discharged by the exhaust system after passing through the screw conveyor, while some remains in the molten material. This will cause voids of varying sizes to form inside the extruded PC sheets, which is particularly detrimental to transparent PC sheets. At the same time, bubbles and pores are equivalent to internal "defect points", which are prone to becoming the starting point of cracks under pressure, drastically reducing mechanical strength such as impact resistance and tensile strength, and thus reducing the use value of the extrusion equipment. Summary of the Invention

[0004] This invention discloses an extrusion equipment for a PC sheet processing production line, aiming to solve the technical problem that during the PC sheet extrusion process, some of the gas in the molten material is discharged by the exhaust system after being conveyed by a screw, while some remains in the material, forming voids of varying sizes. This has a particularly fatal impact on transparent PC sheets. At the same time, bubbles and pores, as internal defects, are prone to become crack initiation points under pressure, drastically reducing the material's impact resistance, tensile strength, and other mechanical strength.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An extrusion equipment for PC sheet processing includes a conveying channel, an extrusion die, and a three-roll calender. An intermediate processing mechanism is provided between the conveying channel and the extrusion die. This intermediate processing mechanism includes an intermediate frame, which is fixedly connected to the side of the conveying channel near the extrusion die. The intermediate frame is in communication with both the conveying channel and the extrusion die. Built-in pressure plates are fixedly connected to the inner walls of both sides of the intermediate frame, and electric heating tubes are fixedly connected to opposite sides of the two built-in pressure plates. A mounting hole is opened at the top of the intermediate frame above the two built-in pressure plates, and a sealing box is fixedly connected to the mounting hole. A lifting cylinder is fixedly connected to the top of the sealing box. A lifting pressure frame is fixedly connected to the output end inside the sealed box. The lifting pressure frame has two lifting channels, and there are ejector holes at equal intervals on both sides of the two lifting channels. An extrusion rod is slidably connected inside each ejector hole. The ends of multiple extrusion rods located on the same horizontal plane are fixedly connected to the same mating triangular block. A connecting spring rod is fixedly connected at equal intervals on the side of the mating triangular block facing the extrusion rod. The end of the connecting spring rod is fixedly connected to the inner side wall of the lifting channel. An adjusting cylinder is fixedly connected to the top of the sealed box above the two lifting channels, and a diamond-shaped pressure block is fixedly connected to the output end of the adjusting cylinder. The diamond-shaped pressure block is located in the lifting channel.

[0006] In a preferred embodiment, the intermediate frame has through holes on both sides, and a limit plate is fixedly connected inside each of the two through holes. A rear box is fixedly connected to the inner wall of the intermediate frame at the two through holes. Two positioning slide rods are fixedly connected to the inner wall of one side of the rear box. The same transfer slide is slidably connected to the two positioning slide rods. A vibration plate is fixedly connected to the side of the transfer slide facing the inside of the intermediate frame. A guide plate is fixedly connected to the side of the vibration plate near the built-in pressure plate. The guide plate is in contact with one side of the built-in pressure plate.

[0007] In a preferred embodiment, a mounting bracket is fixedly connected to the side of the intermediate through-hole outside the through-hole, and two reciprocating hydraulic cylinders are fixedly connected to the side of the mounting bracket away from the intermediate through-hole. Impact blocks are fixedly connected to the output ends of the two reciprocating hydraulic cylinders. Sliding holes are opened on the limiting plate near the two impact blocks. Sliding impact rods are slidably connected inside the two sliding holes. The running trajectories of the sliding impact rods and the impact blocks are on the same straight line.

[0008] In a preferred embodiment, the top inner wall of the intermediate frame above the two vibrating plates has a fixing groove, and a suction plate is fixedly connected to the top inner wall of the fixing groove. The suction plate has a suction hole at the bottom. A buffer plate is fixedly connected to the inner side wall of the fixing groove near the bottom. A staggered baffle is fixedly connected to both sides of the buffer plate and the inner side wall of the fixing groove. The staggered baffles on the buffer plate and the fixing groove are staggered. A pump ring frame is fixedly connected to the top of the intermediate frame. A vacuum pump is fixedly connected inside the pump ring frame. The vacuum pump's vacuuming end is connected to the inside of the suction plate through a pipe.

[0009] In a preferred embodiment, a mounting base is fixedly connected to the bottom of the conveying channel, and an extension base is fixedly connected to one side of the mounting base. The three-roll calender is fixedly connected to the top of the extension base. A conveying motor is fixedly connected to one side of the conveying channel. The output shaft of the conveying motor is fixedly connected to a conveying shaft via a coupling. A spiral conveying blade is fixedly connected to the outer wall of the conveying shaft.

[0010] In a preferred embodiment, a support shaft is fixedly connected to the bottom inner wall of the conveying channel near the conveying motor, and the conveying shaft and the support shaft are connected by bearings. A feeding mechanism is provided above the support shaft in the conveying channel, and a quick docking mechanism is provided between the conveying channel and the extrusion die head.

[0011] In a preferred embodiment, the feeding mechanism includes a feeding hopper, which is fixedly connected to a feeding hole at the top of the conveying channel. A limiting ring rail is fixedly connected to the top of the feeding hopper. A driven rotating tooth is slidably connected inside the limiting ring rail. A sealing rotating plate is fixedly connected to the top of the driven rotating tooth. A connecting pipe is fixedly connected to the center hole of the sealing rotating plate. A pipe cap is screwed onto the top of the connecting pipe. A contact scraper is fixedly connected to the bottom of the sealing rotating plate near the inner wall of the feeding hopper. The contact scraper contacts the inner wall of the feeding hopper. A partition ring is fixedly connected to the bottom of the sealing rotating plate near the connecting pipe. Deflecting plates are connected at equal intervals to the outer wall of the partition ring via hinges. A striking rod is fixedly connected to each deflecting plate. The contact scraper contacts one of the striking rods. A fixing block is fixedly connected to the outer wall of each deflecting plate near the partition ring. A return spring is fixedly connected to the side of the fixing block facing the deflecting plate. One end of the return spring is fixedly connected to one side of the adjacent deflecting plate.

[0012] In a preferred embodiment, an outer ring is fixedly connected to the outer side wall of the feed hopper, and a motor base is fixedly connected to the outer side wall of the outer ring. A drive motor is fixedly connected to the motor base, and a drive shaft is fixedly connected to the output shaft of the drive motor via a coupling. An active rotating tooth is fixedly connected to the outer side wall of the drive shaft, and the active rotating tooth meshes with the driven rotating tooth.

[0013] In a preferred embodiment, the quick docking mechanism includes a fixed plate and an external frame. The fixed plate is fixedly connected to one side of the conveying channel. A docking cylinder and a limiting post are fixedly connected to the top of the fixed plate. Multiple sets of positioning spring rods are fixedly connected to the inner side wall of the docking cylinder. The end of each set of positioning spring rods is fixedly connected to the same positioning pressure plate.

[0014] In a preferred embodiment, the outer frame is fixedly connected to the outer side wall of the extrusion die head, and an embedded column is fixedly connected to the outer frame above the docking cylinder. The embedded column is in contact with each positioning pressure plate. A docking sleeve is fixedly connected to the bottom of the outer frame above the limiting column. The docking sleeve is sleeved outside the limiting column. A through hole is opened on the fixing plate below the embedded column. A connecting frame is fixedly connected to the bottom of the fixing plate outside the through hole. A lifting cylinder is fixedly connected to the connecting frame. A top block is fixedly connected to the output end of the lifting cylinder. The top block is in contact with the bottom of the embedded column.

[0015] The present invention provides an extrusion equipment for a PC sheet processing production line. When the molten material is conveyed into the intermediate pass frame, a lifting cylinder drives a lifting pressure frame to press the molten material in. Then, an adjusting cylinder moves a diamond-shaped pressure block downwards, which presses against a triangular block, causing the extrusion rod to be pushed out from the top hole, creating holes in various positions of the molten material. Simultaneously, a reciprocating hydraulic cylinder drives an impact block to continuously strike a sliding impact rod, transmitting the vibration to the molten material via a vibrating plate, accelerating the discharge of residual gas from each hole, thereby improving the overall quality of the PC sheet. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an extrusion equipment for a PC sheet processing production line proposed in this invention.

[0017] Figure 2 for Figure 1 Cross-sectional view of the combined structure of the central conveyor channel and intermediate processing box.

[0018] Figure 3 This is a schematic diagram of the intermediate processing mechanism of the extrusion equipment in a PC sheet processing production line proposed in this invention.

[0019] Figure 4 This is a cross-sectional view of the combined structure of the sealing box and lifting pressure frame in the intermediate processing mechanism of the extrusion equipment of a PC sheet processing production line proposed in this invention.

[0020] Figure 5 This is a structurally exploded view of the vibrating plate, transfer carriage, and rear box of an extrusion equipment for PC sheet processing production line proposed in this invention.

[0021] Figure 6 This is an enlarged view of the combined structure of a vacuum pump, a suction plate, and a buffer plate in an extrusion equipment for a PC sheet processing production line proposed in this invention.

[0022] Figure 7 This is a schematic diagram of the feeding mechanism of an extrusion equipment in a PC sheet processing production line proposed in this invention.

[0023] Figure 8 for Figure 7 Cross-sectional view of the combined structure of the feed hopper, sealing rotating plate, and connecting pipe.

[0024] Figure 9 for Figure 8 Enlarged view of the structure of part A in the middle.

[0025] Figure 10 This is a schematic diagram of a quick docking mechanism for an extrusion equipment in a PC sheet processing production line proposed in this invention.

[0026] Figure 11 for Figure 10 Exploded view of the structure.

[0027] In the diagram: 1. Conveying channel; 2. Feeding mechanism; 201. Feed hopper; 202. Driven rotating gear; 203. Pipe cover; 204. Connecting pipe; 205. Drive shaft; 206. Driven rotating gear; 207. Drive motor; 208. Motor base; 209. External connecting ring; 210. Sealing rotating plate; 211. Limiting ring rail; 212. Adhesive scraper; 213. Partition ring; 214. Return spring; 215. Fixing element. 216. Deflector plate; 217. Striking rod; 3. Intermediate processing mechanism; 301. Intermediate through frame; 302. Electric heating tube; 303. Mounting frame; 304. Vibration plate; 305. Extraction plate; 306. Lifting pressure frame; 307. Lifting cylinder; 308. Sealing box; 309. Built-in pressure plate; 310. Diamond-shaped pressure block; 311. Lifting channel; 312. Ejection hole; 313. Connecting spring rod; 314. 315. Extrusion rod; 316. Matching triangular block; 317. Adjusting cylinder; 318. Guide vane; 319. Impact block; 320. Transfer carriage; 321. Rear box; 322. Sliding impact rod; 323. Reciprocating hydraulic cylinder; 324. Limiting plate; 325. Pump ring frame; 326. Vacuum pump; 327. Misalignment baffle; 328. Air extraction hole; 329. Buffer plate; 4. Extrusion die head; 5. Three-roll calender; 6. Extension 7. Extending base frame; 7. Quick docking mechanism; 701. Fixing plate; 702. Docking cylinder; 703. Embedded column; 704. External frame; 705. Docking sleeve; 706. Positioning pressure plate; 707. Positioning spring rod; 708. Top block; 709. Connecting frame; 710. Lifting cylinder; 711. Limiting column; 8. Mounting base frame; 9. Conveyor motor; 10. Support shaft frame; 11. Conveyor shaft; 12. Spiral conveyor blade. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0029] The extrusion equipment of the PC sheet processing production line disclosed in this invention is mainly used in the PC sheet extrusion process. After the gas in the molten material is conveyed by a screw, part of it is discharged by the exhaust system, while part of it is retained in the material, forming voids of varying sizes. This has a particularly fatal impact on transparent PC sheets. At the same time, bubbles and pores, as internal defects, are prone to become crack initiation points under pressure, which drastically reduces the material's impact resistance, tensile strength, and other mechanical strength.

[0030] Reference Figures 1-11 An extrusion equipment for PC sheet processing production line includes a conveying channel 1, an extrusion die 4, and a three-roll calender 5. An intermediate processing mechanism 3 is provided between the conveying channel 1 and the extrusion die 4. The intermediate processing mechanism 3 includes an intermediate frame 301, which is fixedly connected to the side of the conveying channel 1 near the extrusion die 4. The intermediate frame 301 is in communication with both the conveying channel 1 and the extrusion die 4. Built-in pressure plates 309 are fixedly connected to the inner walls of both sides of the intermediate frame 301, and electric heating tubes 302 are fixedly connected to the opposite sides of the two built-in pressure plates 309. An installation hole is opened at the top of the intermediate frame 301 above the two built-in pressure plates 309. A sealing box 308 is fixedly connected to the installation hole, and a lifting cylinder 307 is fixedly connected to the top of the sealing box 308, located inside the sealing box 308. The output end of the device is fixedly connected to a lifting pressure frame 306. The lifting pressure frame 306 has two lifting channels 311. The lifting pressure frame 306 has an ejector hole 312 at equal intervals on both sides of the two lifting channels 311. An extrusion rod 314 is slidably connected inside each ejector hole 312. The ends of multiple extrusion rods 314 located on the same horizontal plane are fixedly connected to the same mating triangular block 315. A connecting spring rod 313 is fixedly connected at equal intervals on the side of the mating triangular block 315 facing the extrusion rod 314. The end of the connecting spring rod 313 is fixedly connected to the inner side wall of the lifting channel 311. The top of the sealing box 308 located above the two lifting channels 311 is fixedly connected to an adjusting cylinder 316. The output end of the adjusting cylinder 316 is fixedly connected to a diamond-shaped pressure block 310, which is located in the lifting channel 311.

[0031] In specific application scenarios, after the molten material is conveyed into the intermediate support frame 301, the adjusting lifting cylinder 307 drives the lifting pressure frame 306 to press into the molten material. Then, the adjusting cylinder 316 drives the diamond-shaped pressure block 310 to move downward. The diamond-shaped pressure block 310 squeezes the cooperating triangular block 315, causing the extrusion rod 314 to be pushed out from the ejection hole 312. The extrusion rod 314 makes holes in various positions of the molten material. As the hole-making operation proceeds, the reciprocating hydraulic cylinder 322 drives the impact block 318 to continuously strike the sliding impact rod 321. The sliding impact rod 321 transmits the vibration to the vibration plate 304, and then transmits the vibration to the molten material, accelerating the discharge of residual gas in the molten material from various holes and improving the overall quality of the PC board.

[0032] Specifically, when the gas is discharged from the molten material, the vacuum pump 325 is started. The vacuum pump 325 discharges the gas through the evacuation hole 327 on the evacuation plate 305. At the same time, the buffer plate 328 and each staggered baffle 326 block the molten material to prevent it from being pressed into the evacuation plate 305 and causing the evacuation hole 327 to be blocked.

[0033] Reference Figure 1 , Figure 3 and Figure 5 In a preferred embodiment, the intermediate frame 301 has through holes on both sides, and the interior of each through hole is fixedly connected to a limiting plate 323. The inner sidewalls of the intermediate frame 301 at the two through holes are fixedly connected to a rear box 320. Two positioning slide rods are fixedly connected to one inner wall of the rear box 320. The same transfer slide 319 is slidably connected to the two positioning slide rods. A vibration plate 304 is fixedly connected to the side of the transfer slide 319 facing the interior of the intermediate frame 301. A guide plate 317 is fixedly connected to the side of the vibration plate 304 near the built-in pressure plate 309. The guide plate 317 is in contact with one side of the built-in pressure plate 309.

[0034] Reference Figure 3 and Figure 5 In a preferred embodiment, a mounting bracket 303 is fixedly connected to the side of the intermediate through frame 301 outside the through hole, and two reciprocating hydraulic cylinders 322 are fixedly connected to the side of the mounting bracket 303 away from the intermediate through frame 301. Impact blocks 318 are fixedly connected to the output ends of the two reciprocating hydraulic cylinders 322. Sliding holes are opened on the limiting plate 323 near the two impact blocks 318. Sliding impact rods 321 are slidably connected inside the two sliding holes. The running trajectories of the sliding impact rods 321 and the impact blocks 318 are on the same straight line.

[0035] Reference Figure 3 and Figure 6In a preferred embodiment, the top inner wall of the intermediate frame 301 above the two vibrating plates 304 has a fixing groove, and the top inner wall of the fixing groove is fixedly connected to a suction plate 305. The bottom of the suction plate 305 has a suction hole 327. The inner side wall of the fixing groove near the bottom is fixedly connected to a buffer plate 328. The two sides of the buffer plate 328 and the inner side wall of the fixing groove are fixedly connected to a staggered baffle 326. The staggered baffles 326 on the buffer plate 328 and the fixing groove are staggered. The top of the intermediate frame 301 is fixedly connected to a pump ring frame 324. The inside of the pump ring frame 324 is fixedly connected to a vacuum pump 325. The vacuum pump 325 is connected to the inside of the suction plate 305 through a pipe.

[0036] Reference Figure 1 and Figure 2 In a preferred embodiment, a mounting base 8 is fixedly connected to the bottom of the conveying channel 1, and an extension base 6 is fixedly connected to one side of the mounting base 8. The three-roll calender 5 is fixedly connected to the top of the extension base 6. A conveying motor 9 is fixedly connected to one side of the conveying channel 1. The output shaft of the conveying motor 9 is fixedly connected to a conveying shaft 11 via a coupling. A spiral conveying blade 12 is fixedly connected to the outer wall of the conveying shaft 11.

[0037] Reference Figure 1 , Figure 2 , Figure 7 and Figure 10 In a preferred embodiment, a support shaft frame 10 is fixedly connected to the bottom inner wall of the conveying channel 1 near the conveying motor 9, and the conveying shaft 11 is connected to the support shaft frame 10 through a bearing. A feeding mechanism 2 is provided above the support shaft frame 10 in the conveying channel 1, and a quick docking mechanism 7 is provided between the conveying channel 1 and the extrusion die head 4.

[0038] Reference Figure 1 , Figure 7 , Figure 8 and Figure 9In a preferred embodiment, the feeding mechanism 2 includes a feeding hopper 201, which is fixedly connected to a feeding hole at the top of the conveying channel 1. A limiting ring rail 211 is fixedly connected to the top of the feeding hopper 201. A driven rotating tooth 202 is slidably connected inside the limiting ring rail 211. A sealing rotating plate 210 is fixedly connected to the top of the driven rotating tooth 202. A connecting pipe 204 is fixedly connected to the center hole of the sealing rotating plate 210. A pipe cap 203 is screwed onto the top of the connecting pipe 204. A contact scraper 212 is fixedly connected to the bottom of the sealing rotating plate 210 near the inner wall of the feeding hopper 201. The contact scraper 212 and the feeding hopper 201 are connected to the feeding hopper 201. The inner wall of the hopper 201 is in contact with the sealing rotating plate 210 near the bottom of the connecting pipe 204. A partition ring 213 is fixedly connected to the outer wall of the partition ring 213. Deflecting plates 216 are connected at equal intervals by hinges. A striking rod 217 is fixedly connected to each deflecting plate 216. The scraper 212 is in contact with one of the striking rods 217. A fixing block 215 is fixedly connected to the outer wall of the partition ring 213 near each deflecting plate 216. A return spring 214 is fixedly connected to the side of the fixing block 215 facing the deflecting plate 216. One end of the return spring 214 is fixedly connected to the side of the adjacent deflecting plate 216.

[0039] Specifically, during the feeding process, the drive motor 207 is started periodically. The drive motor 207 drives the driven tooth 202 to rotate through the active rotating tooth 206, thereby driving the bonding scraper 212 to remove the molten material attached to the inner wall of the feed hopper 201, avoiding raw material loss caused by the molten material adhering to it. At the same time, during the rotation of the bonding scraper 212, it impacts the striking rods 217 on each deflection plate 216, causing the bonding scraper 212 to be in a vibrating state, and the molten material attached to it to quickly detach.

[0040] It should be noted that after the striking rod 217 collides with the adhesive scraper 212, the return spring 214 bends and the deflection plate 216 deflects. When the striking rod 217 separates from the adhesive scraper 212, the return spring 214 drives the deflection plate 216 to return to its original position, and then the operation can continue.

[0041] Reference Figure 7 and Figure 8 In a preferred embodiment, an outer ring 209 is fixedly connected to the outer side wall of the feed hopper 201, and a motor base 208 is fixedly connected to the outer side wall of the outer ring 209. A drive motor 207 is fixedly connected to the motor base 208. The output shaft of the drive motor 207 is fixedly connected to a drive shaft 205 through a coupling. An active rotating gear 206 is fixedly connected to the outer side wall of the drive shaft 205. The active rotating gear 206 meshes with the driven rotating gear 202.

[0042] Reference Figure 1 , Figure 10 and Figure 11In a preferred embodiment, the quick docking mechanism 7 includes a fixed plate 701 and an external frame 704. The fixed plate 701 is fixedly connected to one side of the conveying channel 1. The top of the fixed plate 701 is fixedly connected to a docking cylinder 702 and a limiting post 711. The inner sidewall of the docking cylinder 702 is fixedly connected to multiple sets of positioning spring rods 707. The end of each set of positioning spring rods 707 is fixedly connected to the same positioning pressure plate 706.

[0043] Specifically, when installing the extrusion die 4, the embedded post 703 is pressed into each positioning plate 706, and the positioning spring rod 707 drives the positioning plate 706 to position it. Simultaneously, the docking sleeve 705 is fitted onto the limiting post 711, which is convenient and quick. The double docking improves the firmness of the extrusion die 4 after docking with the conveying channel 1. At the same time, the positioning spring rod 707 is in a compressed state, which reduces the impact of vibration on the extrusion die 4 to a certain extent, further improving the docking firmness.

[0044] It should be noted that when disassembling the extrusion die head 4, the lifting cylinder 710 is adjusted to drive the top block 708 to push the bottom of the embedded column 703, so that the embedded column 703 and the docking sleeve 705 can quickly separate from the positioning plate 706 and the limiting column 711, and the disassembly of the extrusion die head 4 can be completed quickly.

[0045] Reference Figure 1 , Figure 10 and Figure 11 In a preferred embodiment, the outer frame 704 is fixedly connected to the outer side wall of the extrusion die head 4, and an embedded post 703 is fixedly connected to the outer frame 704 above the docking cylinder 702. The embedded post 703 is in contact with each positioning pressure plate 706. A docking sleeve 705 is fixedly connected to the bottom of the outer frame 704 above the limiting post 711. The docking sleeve 705 is sleeved on the outside of the limiting post 711. A through hole is opened in the fixing plate 701 below the embedded post 703. A connecting frame 709 is fixedly connected to the bottom of the fixing plate 701 outside the through hole. A lifting cylinder 710 is fixedly connected to the connecting frame 709. A top block 708 is fixedly connected to the output end of the lifting cylinder 710. The top block 708 is in contact with the bottom of the embedded post 703.

[0046] Working principle: In use, the molten material is introduced into the connecting pipe 204 and the conveying motor 9 is started. After the molten material enters the conveying channel 1, the conveying motor 9 drives the spiral conveying blade 12 to push the molten material, causing it to move quickly into the intermediate frame 301. The adjusting lifting cylinder 307 drives the lifting pressure frame 306 to press into the molten material. Then, the adjusting cylinder 316 drives the diamond-shaped pressure block 310 to move downward. The diamond-shaped pressure block 310 squeezes the mating triangular block 315, causing the extrusion rod 314 to be pushed out from the ejector hole 312. The extrusion rod 314 makes holes in various positions of the molten material. As the hole-making operation proceeds, the reciprocating hydraulic cylinder 322 drives the impact block 318 to continuously strike the sliding impact rod 321. The sliding impact rod 321 transmits the vibration to the vibrating plate 304, and then transmits the vibration to the molten material, accelerating the discharge of residual gas in the molten material from each hole. When the gas in the molten material is discharged, the vacuum pump 325 is started. The vacuum pump 325 discharges the escaped gas through the suction hole 327 on the suction plate 305. The processed molten material enters the extrusion die head 4 to begin extrusion, and then enters the three-roll calender 5, where it is cooled and shaped.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A production line extrusion apparatus for processing of PC sheet material, comprising a conveying channel (1), an extrusion flat die (4) and a three-roll calender (5), characterized in that, An intermediate processing mechanism (3) is provided between the conveying channel (1) and the extrusion die (4), and the intermediate processing mechanism (3) includes an intermediate frame (301). The intermediate frame (301) is fixedly connected to the side of the conveying channel (1) near the extrusion die (4). The intermediate frame (301) is in communication with the conveying channel (1) and the extrusion die (4). Both inner walls of the intermediate frame (301) are fixedly connected to built-in pressure plates (309), and electric heating tubes (302) are fixedly connected to the opposite sides of the two built-in pressure plates (309). The top of the intermediate frame (301) above the two built-in pressure plates (309) has an installation hole. A sealing box (308) is fixedly connected in the installation hole. A lifting cylinder (307) is fixedly connected to the top of the sealing box (308). A lifting pressure frame (306) is fixedly connected to the output end of the lifting cylinder (307) inside the sealing box (308). The lifting pressure frame (306) has two lifting channels (311), and the lifting pressure frame (306) has an ejector hole (312) at equal distances on both sides of the two lifting channels (311). Each ejector hole (312) is slidably connected to an extrusion rod (314). The ends of multiple extrusion rods (314) located on the same horizontal plane are fixedly connected to the same mating triangular block (315). The mating triangular block (315) is fixedly connected to a connecting spring rod (313) at equal distances on the side facing the extrusion rod (314). The end of the connecting spring rod (313) is fixedly connected to the inner wall of the lifting channel (311). The top of the sealing box (308) located above the two lifting channels (311) is fixedly connected to an adjusting cylinder (316), and the output end of the adjusting cylinder (316) is fixedly connected to a diamond-shaped pressure block (310). The diamond-shaped pressure block (310) is located in the lifting channel (311).

2. The extrusion equipment for a PC sheet processing production line according to claim 1, characterized in that, Both sides of the intermediate frame (301) have through holes, and the interior of the two through holes is fixedly connected to a limiting plate (323). The inner sidewalls of the intermediate frame (301) at the two through holes are fixedly connected to a rear box (320). Two positioning slide rods are fixedly connected to one side of the inner wall of the rear box (320). The same transfer slide (319) is slidably connected to the two positioning slide rods. A vibration plate (304) is fixedly connected to the side of the transfer slide (319) facing the interior of the intermediate frame (301). A guide plate (317) is fixedly connected to the side of the vibration plate (304) near the built-in pressure plate (309). The guide plate (317) is in contact with one side of the built-in pressure plate (309).

3. The extrusion equipment for a PC sheet processing production line according to claim 2, characterized in that, The intermediate frame (301) is fixedly connected to a mounting bracket (303) on one side outside the through hole, and two reciprocating hydraulic cylinders (322) are fixedly connected to the side of the mounting bracket (303) away from the intermediate frame (301). The output ends of the two reciprocating hydraulic cylinders (322) are fixedly connected to impact blocks (318). The limiting plate (323) has sliding holes near the two impact blocks (318), and sliding impact rods (321) are slidably connected inside the two sliding holes. The running trajectories of the sliding impact rods (321) and the impact blocks (318) are on the same straight line.

4. The extrusion equipment for a PC sheet processing production line according to claim 3, characterized in that, The top inner wall of the intermediate frame (301) above the two vibrating plates (304) has a fixed groove, and the top inner wall of the fixed groove is fixedly connected to a suction plate (305). The bottom of the suction plate (305) has a suction hole (327). The inner side wall of the fixed groove near the bottom is fixedly connected to a buffer plate (328). The sides of the buffer plate (328) and the inner side wall of the fixed groove are fixedly connected to a misaligned baffle (326). The misaligned baffles (326) on the buffer plate (328) and the fixed groove are staggered. The top of the intermediate frame (301) is fixedly connected to a pump ring frame (324). The inside of the pump ring frame (324) is fixedly connected to a vacuum pump (325). The vacuum pump (325) is connected to the inside of the suction plate (305) through a pipe.

5. The extrusion equipment for a PC sheet processing production line according to claim 1, characterized in that, The bottom of the conveying channel (1) is fixedly connected to the mounting base (8), and one side of the mounting base (8) is fixedly connected to the extension base (6). The three-roll calender (5) is fixedly connected to the top of the extension base (6). One side of the conveying channel (1) is fixedly connected to the conveying motor (9). The output shaft of the conveying motor (9) is fixedly connected to the conveying shaft (11) through a coupling. The outer side wall of the conveying shaft (11) is fixedly connected to the spiral conveying blade (12).

6. The extrusion equipment for a PC sheet processing production line according to claim 5, characterized in that, The conveying channel (1) is fixedly connected to the bottom inner wall of the conveying motor (9) with a support shaft frame (10), and the conveying shaft (11) is connected to the support shaft frame (10) by a bearing. The conveying channel (1) is provided with a feeding mechanism (2) above the support shaft frame (10), and a quick docking mechanism (7) is provided between the conveying channel (1) and the extrusion die head (4).

7. The extrusion equipment for a PC sheet processing production line according to claim 6, characterized in that, The feeding mechanism (2) includes a feeding hopper (201), which is fixedly connected to a feeding hole at the top of the conveying channel (1). A limiting ring rail (211) is fixedly connected to the top of the feeding hopper (201). A driven rotating tooth (202) is slidably connected inside the limiting ring rail (211). A sealing rotating plate (210) is fixedly connected to the top of the driven rotating tooth (202). A connecting pipe (204) is fixedly connected to the center hole of the sealing rotating plate (210). A pipe cap (203) is screwed onto the top of the connecting pipe (204). A fitting scraper (212) is fixedly connected to the bottom of the sealing rotating plate (210) near the inner wall of the feeding hopper (201). The fitting scraper (212) and the feeding hopper (201) are connected to each other. 1) The inner wall of the sealing plate (210) is in contact with the bottom of the connecting pipe (204) and a partition ring (213) is fixedly connected. The outer wall of the partition ring (213) is connected with deflection plates (216) at equal distances by hinges. Each deflection plate (216) is fixedly connected with a striking rod (217). The fitting scraper (212) is in contact with one of the striking rods (217). The partition ring (213) is fixedly connected with a fixing block (215) near the outer wall of each deflection plate (216). The side of the fixing block (215) facing the deflection plate (216) is fixedly connected with a return spring (214). One end of the return spring (214) is fixedly connected to one side of the adjacent deflection plate (216).

8. The extrusion equipment for a PC sheet processing production line according to claim 7, characterized in that, An outer ring (209) is fixedly connected to the outer wall of the feed hopper (201), and a motor base (208) is fixedly connected to the outer wall of the outer ring (209). A drive motor (207) is fixedly connected to the motor base (208). The output shaft of the drive motor (207) is fixedly connected to a drive shaft (205) through a coupling. An active rotating gear (206) is fixedly connected to the outer wall of the drive shaft (205). The active rotating gear (206) meshes with the driven rotating gear (202).

9. The extrusion equipment for a PC sheet processing production line according to claim 6, characterized in that, The quick docking mechanism (7) includes a fixed plate (701) and an external frame (704). The fixed plate (701) is fixedly connected to one side of the conveying channel (1). The top of the fixed plate (701) is fixedly connected to a docking cylinder (702) and a limiting post (711). The inner side wall of the docking cylinder (702) is fixedly connected to multiple sets of positioning spring rods (707). The end of each set of positioning spring rods (707) is fixedly connected to the same positioning pressure plate (706).

10. The extrusion equipment for a PC sheet processing production line according to claim 9, characterized in that, The outer frame (704) is fixedly connected to the outer wall of the extrusion die head (4), and an embedded column (703) is fixedly connected above the docking cylinder (702) of the outer frame (704). The embedded column (703) is in contact with each positioning pressure plate (706). A docking sleeve (705) is fixedly connected to the bottom of the outer frame (704) above the limiting column (711). The docking sleeve (705) is sleeved outside the limiting column (711). A through hole is opened below the embedded column (703) of the fixing plate (701). A connecting frame (709) is fixedly connected to the bottom of the fixing plate (701) outside the through hole. A lifting cylinder (710) is fixedly connected to the connecting frame (709). A top block (708) is fixedly connected to the output end of the lifting cylinder (710). The top block (708) is in contact with the bottom of the embedded column (703).

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