A high-temperature-resistant light-weight PVC edge strip continuous extrusion production line and production method

Abstract

The present application relates to a kind of high-temperature-resistant lightweight PVC edge strip continuous extrusion production line, including first plasticizing station I, second plasticizing station II and collection station III are sequentially arranged along the direction of raw material transmission;The first plasticizing station I is provided with the overall plasticizing mechanism for forming product shape by extruding that raw material, the second plasticizing station II is provided with the outer wall plasticizing mechanism for trimming the outer wall of edge strip, and the cooling mechanism for cooling and collecting edge strip is arranged on the collection station III;The present application is provided with smoothing component after edge strip is formed extruded by die, and the outer surface of edge strip is smoothed again, so as to solve the problem that the surface of die is worn and damaged due to long time continuous production under high pressure and high temperature condition, and it is difficult to replace in continuous production process, further leading to blockage and extrusion not smooth, affect product quality and production efficiency.

Description

Technical Field

[0001] This invention relates to the field of high-temperature resistant lightweight PVC edge banding production technology, and in particular to a continuous extrusion production line and production method for high-temperature resistant lightweight PVC edge banding. Background Technology

[0002] The main function of PVC edge banding is to seal the cross-section of the board, so as to protect the board from damage caused by adverse factors (mainly moisture) during the environment and use, and to prevent the volatilization of formaldehyde inside the board. At the same time, it achieves a decorative effect. Its surface has a certain degree of smoothness and decoration. During production, various raw materials are mixed and melted, and then produced by extrusion molding in conjunction with the mold required for the product.

[0003] However, in actual use, the inventors found that due to continuous production under high pressure and high temperature conditions for a long time, the surface of the die head is worn and damaged. Impurities, residues or particles may accumulate inside the die head, and it is difficult to replace it during continuous production, which leads to blockage and poor extrusion, affecting product quality and production efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by incorporating a smoothing component to smooth the outer surface of the edge banding strip again after it has been extruded through the die head. This ensures the smoothness of the outer wall of the finished edge banding strip and solves the problems caused by wear and damage to the die head surface due to continuous production under high pressure and high temperature conditions, the potential accumulation of impurities, residues, or particles inside the die head, and the difficulty in replacing it during continuous production, which leads to blockages and poor extrusion, affecting product quality and production efficiency.

[0005] To address the above technical problems, the following technical solution is adopted: A continuous extrusion production line for high-temperature resistant lightweight PVC edge banding strips, comprising: Along the raw material conveying direction, there are sequentially arranged a first shaping station I, a second shaping station II, and a collection station III; The first shaping station I is equipped with an integral shaping mechanism for forming the product shape from the raw material by extrusion; the second shaping station II is equipped with an outer wall shaping mechanism for trimming the outer wall of the edge banding strip; and the collection station III is equipped with a cooling mechanism for cooling and collecting the edge banding strip. The outer wall shaping mechanism is mounted on a frame and includes a smoothing component mounted on the frame for trimming the outer wall of the edge banding strip, a fixing component mounted on the overall shaping mechanism for preventing raw material spillage, a repair component mounted on the frame for repairing the smoothing component, a first transmission component mounted on the frame for moving the smoothing component and the repair component, and a second transmission component mounted on the repair component for driving the repair component to work.

[0006] Preferably, the integral shaping mechanism includes a molding component disposed on a frame for extruding and shaping the raw material, and an agitation component disposed on the molding component for remixing the dispersed raw material.

[0007] Preferably, the molding assembly includes an extrusion tube connected to the frame, a spiral auger connected inside the extrusion tube and connected to the output end of the first motor, and a die head connected to one end of the extrusion tube. The agitation assembly includes a transmission rod connected to the output end of a first motor via a first belt drive, a drive gear connected to the transmission rod, a drive gear ring sleeved on the mold head and meshing with the drive gear, a follower gear ring connected to the drive gear ring, multiple sets of follower gears connected to the outer wall of the mold head via a first rotating shaft, and agitation blades connected to the first rotating shaft.

[0008] Preferably, the smoothing assembly includes two sets of annular sprocket chain drives connected to the frame, a transfer rod connected to the annular sprocket chain drives, and a smoothing plate connected to one end of the transfer rod. The fixing component includes two brackets connected to the flat plate and a buckle connected to the mold head by a spring and corresponding to the bracket.

[0009] Preferably, the repair assembly includes two sets of mounting plates connected to the frame, a hollow grinding roller connected to the mounting plate via a second rotating shaft, multiple seepage holes formed on the hollow grinding roller, a cleaning plate connected to the mounting plate, a push rack connected to the mounting plate, a third rotating shaft connected to the frame, and a push gear connected to the third rotating shaft and meshing with the push rack.

[0010] Preferably, the first transmission assembly includes a fourth rotating shaft with one end connected to a first gear and the other end connected to an annular sprocket chain drive, a second motor connected to the frame, a first half gear connected to the output end of the second motor and meshing with the first gear, a second gear connected to a third rotating shaft, a second half gear connected to the output end of the second motor and meshing with the second gear, and a half-tooth ring connected to the output end of the second motor and meshing with the second gear.

[0011] Preferably, the second transmission assembly includes a fifth shaft connected to the mounting plate and connected to the second shaft via a second belt drive, a quincunx cone connected to one end of the fifth shaft via a telescopic member, a first transmission wheel connected to one end of the transmission rod, two second transmission wheels connected to the frame and having quincunx holes, and a transmission chain wound around the first and second transmission wheels.

[0012] Preferably, the cooling mechanism is located on one side of the outer wall shaping mechanism and includes a cooling and collecting assembly located on one side of the frame for cooling and collecting the edge banding strip, and a burr removal assembly located on the cooling and collecting assembly for removing burrs from the edge banding strip.

[0013] Preferably, the cooling collection assembly includes a cooling pool disposed on one side of the frame, multiple sets of guide wheels disposed in the frame and the cooling pool, and a take-up roller disposed on one side of the cooling pool. The burr removal assembly includes a scraper connected to the cooling pool, an air guide plate connected to one side of the scraper, a hot air gun connected to the cooling pool with its output port located on one side of the air guide plate, and an arc-shaped plate disposed on the cooling pool and located below the hot air gun.

[0014] A production method adapted to a continuous extrusion production line for high-temperature resistant lightweight PVC edge banding strips includes: Step 1, First Shaping Process: The mixed and melted raw materials undergo preliminary shaping at the first shaping station I through the overall shaping mechanism to generate the product shape. During the process, the forming components perform extrusion molding, and under the action of the stirring components, the raw materials that were divided at the connection position of the inner wall of the die head are remixed, thereby reducing the possibility of cracks appearing in the sealing strip. Step 2, Second Shaping Process: The pre-formed edge banding strip undergoes a second shaping process at the second shaping station II. The outer wall of the edge banding strip is smoothed by the smoothing component to prevent scratches and cracks from appearing on the inner wall of the die head due to prolonged contact with high-temperature raw materials, thus preventing the surface of the edge banding strip from being uneven. When switching between the two sets of smoothing components, the fixing component fixes the smoothing component in the working state to enhance the sealing performance. Step 3, finishing process: Two sets of smoothing components are used alternately. During the preparation stage, the smoothing components will also be polished on the inner surface under the action of the repair components to remove residual raw material particles. At the same time, a protective film is coated on the surface to ensure the quality of production. Step 4, Cooling and Collection Process: After production, the edge banding strips undergo water cooling and rewinding in sequence under the guidance of the cooling and collection components. During the process, the burr removal components remove and smooth any burrs that may exist on the top of the edge banding strips.

[0015] The beneficial effects of this invention are: (1) In this invention, by setting a smoothing component, the outer surface of the edge banding strip is smoothed again after it is formed and extruded by the die head, thereby ensuring the smoothness of the outer wall of the finished edge banding strip. This solves the problem that the die head surface is worn and damaged due to continuous production under high pressure and high temperature conditions for a long time, and impurities, residues or particles may accumulate inside the die head. Furthermore, it is difficult to replace the die head during continuous production, which leads to blockage and poor extrusion, affecting product quality and production efficiency. (2) In this invention, by setting a repair component to assist the smoothing component, two sets of smoothing plates switch back and forth to work alternately, while the repair component performs surface polishing and coating work on the smoothing plate in the preparation stage, thereby ensuring that the smoothing plate can maintain a good state when working, thereby improving the smoothness of the edge banding surface and ensuring product quality and production efficiency. (3) In this invention, by setting a stirring component to mix the raw material passing through one end of the mold head again, the divided raw material is quickly combined again, which effectively solves the problem that the product cross-section is a ring-shaped structure, one end of the mold head needs to be fixed, and the connection point causes the raw material to be divided. Due to the consistency of the cut, the subsequent raw material is not tightly combined at the dividing surface, leaving gaps, which affects the quality of the sealing strip. (4) In this invention, by setting a burr removal component during the cooling process of the edge banding strip, the burr is removed in a targeted manner by isolating the burr part, thereby ensuring that the burr is removed quickly without affecting the shape of the edge banding strip. This effectively solves the problem that burrs appear at the top of the edge banding strip under high pressure because there is inevitably a certain gap at the splicing position of the two sets of flat plates.

[0016] In summary, this equipment has the advantages of high production efficiency, excellent product quality, and long equipment life, and is especially suitable for the production technology of high-temperature resistant lightweight PVC edge banding strips. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the edge banding strip structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the overall shaping mechanism.

[0021] Figure 4 This is a schematic diagram of the agitator assembly.

[0022] Figure 5 This is a schematic diagram of the stirring blade.

[0023] Figure 6 This is a schematic diagram of the outer wall shaping mechanism.

[0024] Figure 7 This is a side view of the outer wall shaping mechanism.

[0025] Figure 8 A schematic diagram of the structure of the smoothing component.

[0026] Figure 9 This is a structural diagram of a fixed component.

[0027] Figure 10 This is a structural diagram of the repair component.

[0028] Figure 11 This is a schematic diagram of the structure of the first transmission component.

[0029] Figure 12 This is a schematic diagram of the second transmission component.

[0030] Figure 13 This is a schematic diagram of the cooling mechanism.

[0031] Figure 14 A schematic diagram of the burr removal component.

[0032] Figure 15 This is a schematic diagram of the guide wheel.

[0033] Figure 16 A schematic diagram of the working state of the burr removal component.

[0034] Figure 17 This is a schematic diagram of the production process. Detailed Implementation

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0036] Example 1 like Figure 1-3 and Figure 6-7 As shown, a high-temperature resistant lightweight PVC edge banding continuous extrusion production line includes: Along the raw material conveying direction, there are sequentially arranged a first shaping station I, a second shaping station II, and a collection station III; The first shaping station I is equipped with an integral shaping mechanism 1 for forming the product shape by extrusion of the raw material; the second shaping station II is equipped with an outer wall shaping mechanism 2 for trimming the outer wall of the edge sealing strip 100; and the collection station III is equipped with a cooling mechanism 3 for cooling and collecting the edge sealing strip 100. The outer wall shaping mechanism 2 is mounted on the frame 200 and includes a smoothing component 21 mounted on the frame 200 for trimming the outer wall of the sealing strip 100, a fixing component 22 mounted on the overall shaping mechanism 1 for preventing material spillage, a repair component 23 mounted on the frame 200 for repairing the smoothing component 21, a first transmission component 24 mounted on the frame 200 for moving the smoothing component 21 and the repair component 23, and a second transmission component 25 mounted on the repair component 23 for driving the repair component 23 to work.

[0037] In this embodiment, by setting up a first shaping station I, a second shaping station II, and a collection station III, the initial shaping of raw materials, the repair of the outer wall of the product, and the cooling and collection work are carried out sequentially. Under the joint action of the overall shaping mechanism 1, the outer wall shaping mechanism 2, and the cooling mechanism 3, the raw materials can be continuously output for continuous production during the processing, thereby improving production efficiency. At the same time, the process also ensures the effect of the integral molding of the edge banding strip 100 and the smoothness of the outer wall, so as to strictly control the product quality.

[0038] In detail, the raw materials are first melted, stirred and mixed and then enter the integral shaping mechanism 1 for the first shaping. At this time, the raw materials form the overall shape of the edge sealing strip 100 and are continuously output. Then, the outer wall of the edge sealing strip 100 is shaped again at the outer wall shaping mechanism 2 to ensure that the outer wall of the edge sealing strip 100 is smooth and clean and meets the production requirements. Finally, the cooling and collection work is completed at the cooling mechanism 3.

[0039] Furthermore, such as Figure 1-5 As shown, the integral shaping mechanism 1 includes a molding component 11 disposed on the frame 200 for extruding and shaping the raw material, and an agitation component 12 disposed on the molding component 11 for remixing the dispersed raw material.

[0040] In this embodiment, by setting the stirring component 12 in conjunction with the molding component 11, the output of raw materials can be carried out continuously, and the mixing of raw materials during the process can meet the production requirements, thereby ensuring the production quality of the edge sealing strip 100 and preventing cracks from appearing.

[0041] In detail, the melted raw material first enters the molding component 11, and is extruded to form the edge sealing strip 100 product shape and continuously output. During the process, the stirring component 12 remixes the divided raw material.

[0042] Furthermore, such as Figure 1-5 As shown, the molding assembly 11 includes an extrusion tube 111 connected to the frame 200, a spiral auger 113 connected inside the extrusion tube 111 and connected to the output end of the first motor 112, and a die head 114 connected to one end of the extrusion tube 111. The agitation assembly 12 includes a transmission rod 122 connected to the output end of a first motor 112 via a first belt drive 121, a drive gear 123 connected to the transmission rod 122, a drive gear ring 124 sleeved on the die head 114 and meshing with the drive gear 123, a follower gear ring 125 connected to the drive gear ring 124, multiple sets of follower gears 127 connected to the outer wall of the die head 114 via a first rotating shaft 126, and a stirring blade 128 connected to the first rotating shaft 126.

[0043] In this embodiment, by setting the stirring component 12 to mix the raw material passing through one end of the mold head 114 again, the divided raw material is quickly recombined, which effectively solves the problem that since the cross-section of the product is a ring-shaped structure, one end of the mold head 114 needs to be fixed, and the connection point causes the raw material to be divided. Due to the consistency of the cut, the subsequent raw material is not tightly bonded at the divided surface, leaving gaps, which affects the quality of the sealing strip 100.

[0044] In detail, after the raw material enters the extrusion tube 111, the auger 113 rotates under the drive of the first motor 112, pushing the raw material forward for output. Then, the raw material enters the die head 114. Under pressure, the raw material begins to move inside the die head 114, forming the edge-sealing strip 100 product shape. Because the raw material is divided at the internal connection of the die head 114, and the upper and lower surfaces of the division are approximately parallel, the pressure is applied horizontally as the raw material moves forward. This hinders automatic mixing between the raw materials, making the product prone to cracking. Therefore, when the first motor 112 rotates... When in motion, the first belt drive 121 drives the drive rod 122 to rotate, the drive rod 122 drives the drive gear 123 to rotate, the drive gear 123 then drives the drive gear ring 124 and the follower gear ring 125 to rotate together, and then the follower gear ring 125 drives multiple sets of follower gears 127 to rotate. The follower gears 127 drive the stirring blade 128 to rotate through the first rotating shaft 126, thereby remixing the raw materials at the segmented position. After mixing, the originally parallel cuts become irregular shapes, and under horizontal pressure, they can better fuse together and eliminate cracks.

[0045] It should be noted that the multiple sets of stirring blades 128 are connected to the internal connection positions of the die head 114 accordingly; constant temperature heating tubes are embedded inside both the extrusion tube 111 and the die head 114.

[0046] Furthermore, such as Figure 6-9As shown, the smoothing assembly 21 includes two sets of annular sprocket chain drive components 211 connected to the frame 200, two transfer rods 212 connected to the annular sprocket chain drive components 211, and a smoothing plate 213 connected to one end of the transfer rods 212. The fixing component 22 includes two card holders 221 connected to the flat plate 213 and a buckle 223 connected to the mold head 114 by a spring 222 and corresponding to the card holders 221.

[0047] In this embodiment, by setting the smoothing component 21, the outer surface of the edge sealing strip 100 is smoothed again after it is formed and extruded by the die head 114, thereby ensuring the smoothness of the outer wall of the finished edge sealing strip 100. This solves the problem that the surface of the die head 114 may be worn and damaged due to continuous production under high pressure and high temperature conditions for a long time, and impurities, residues or particles may accumulate inside the die head 114. Furthermore, it is difficult to replace the die head 114 during continuous production, which leads to blockage and poor extrusion, affecting product quality and production efficiency.

[0048] In detail, the edge banding strip 100 output by the die head 114, under the action of two sets of smoothing plates 213, makes its outer wall smoother. After the smoothing plates 213 have worked for a certain period of time, the protective film on its inner wall is worn away, and it needs to be replaced to ensure the production quality of the edge banding strip 100. First, the annular sprocket chain drive 211 drives the two sets of transfer rods 212 and smoothing plates 213 on one side to change position simultaneously. When the first set separates from the edge banding strip 100, the second set simultaneously contacts the edge banding strip 100 to ensure seamless replacement. Then, the two sets of smoothing plates 213 are moved to complete the process. The position is exchanged; during the process, the flat plate 213 connected to the mold head 114 moves the buckle 223 upward through the inclined surface of the upper and lower set bracket 221. When the bracket 221 moves into the buckle 223, the buckle 223 locks the bracket 221 along the output direction of the edge sealing strip 100 due to the elastic force of the spring 222. Thus, during the continuous production of the edge sealing strip 100, the flat plate 213 and the mold head 114 can achieve a better sealing effect to prevent the material from overflowing. When the flat plate 213 moves to both sides, the buckle 223 will not affect the flat plate 213.

[0049] It should be noted that the two sets of smoothing plates 213 switch at a relatively fast speed, thus ensuring the uninterrupted treatment of the outer wall of the edge banding strip 100.

[0050] Furthermore, such as Figure 10As shown, the repair component 23 includes two sets of mounting plates 231 connected to the frame 200, a hollow grinding roller 233 connected to the mounting plate 231 via a second rotating shaft 232, a plurality of seepage holes 234 formed on the hollow grinding roller 233, a cleaning plate 235 connected to the mounting plate 231, a push rack 236 connected to the mounting plate 231, a third rotating shaft 237 connected to the frame 200, and a push gear 238 connected to the third rotating shaft 237 and meshing with the push rack 236.

[0051] In this embodiment, by setting the repair component 23 to assist the smoothing component 21, the two smoothing plates 213 switch back and forth to work alternately, while the repair component 23 performs surface polishing and coating work on the smoothing plate 213 in the preparation stage, thereby ensuring that the smoothing plate 213 can maintain a good condition during operation, thereby improving the smoothness of the edge banding strip 100 surface and ensuring product quality and production efficiency.

[0052] In detail, after the replaced smoothing plate 213 is in place, the third rotating shaft 237 rotates under the drive of the first transmission component 24. Then, it drives the rack 236 to move through the push gear 238, which in turn drives the mounting plate 231 to move. Subsequently, the hollow grinding roller 233, which is connected to the mounting plate 231 through the second rotating shaft 232, moves together with the mounting plate 231 to the position where it fits against the smoothing plate 213. Next, driven by the second transmission component 25, the hollow grinding roller 233 rotates to remove the residue on the smoothing plate 213 and make its surface smooth. The residue is also removed by the action of the cleaning plate 235, ensuring the cleanliness of the surface of the hollow grinding roller 233. During the process, as the hollow grinding roller 233 rotates, the coating liquid inside it slowly seeps out from the seepage hole 234 and is evenly coated on the inner wall of the smoothing plate 213 through contact with it, forming a protective film.

[0053] It should be noted that the coating liquid has a high viscosity and will not normally seep out of the seepage holes 234 by gravity. It can only seep out slowly from the seepage holes 234 under the action of centrifugal force. The multiple seepage holes 234 are irregularly distributed.

[0054] Furthermore, such as Figure 11 As shown, the first transmission assembly 24 includes a fourth rotating shaft 242 with one end connected to a first gear 241 and the other end connected to an annular sprocket chain drive 211, a second motor 243 connected to the frame 200, a first half gear 244 connected to the output end of the second motor 243 and meshing with the first gear 241, a second gear 245 connected to a third rotating shaft 237, a second half gear 246 connected to the output end of the second motor 243 and meshing with the second gear 245, and a half gear ring 247 connected to the output end of the second motor 243 and meshing with the second gear 245.

[0055] In this embodiment, by setting the first transmission component 24 to drive the smoothing component 21 and the repair component 23 in sequence, the replacement and repair process is carried out in a compact manner, which is conducive to improving the coordination between various tasks.

[0056] In detail, when the second motor 243 is working, it first drives the first gear 241, which meshes with it, to rotate through the first half gear 244. Then, the first gear 241 and the fourth rotating shaft 242 drive the ring sprocket chain transmission component 211 to rotate, thereby driving the smoothing plate 213 to complete the exchange. As the first half gear 244 separates from the first gear 241, the second half gear 246 meshes with the second gear 245 to drive the repair component 23 to move. After the repair component 23 is in place, the second half gear 246 separates from the second gear 245. When the repair component 23 has completed its work, the half gear ring 247 meshes with the second gear 245 to reset the repair component 23, thus completing this cycle.

[0057] Furthermore, such as Figure 12 As shown, the second transmission assembly 25 includes a fifth shaft 252 connected to the mounting plate 231 and connected to the second shaft 232 via a second belt drive 251, a plum blossom cone 254 connected to one end of the fifth shaft 252 via a telescopic member 253, a first transmission wheel 255 connected to one end of the transmission rod 122, two second transmission wheels 257 connected to the frame 200 and having plum blossom holes 256, and a transmission chain 258 wound around the first transmission wheel 255 and the second transmission wheel 257.

[0058] In this embodiment, by setting the second transmission component 25, when the repair component 23 is in place, it can work in conjunction with the power of the molding component 11 to drive the grinding operation, thereby making full use of the power resources.

[0059] In detail, when the mounting plate 231 moves, the fifth rotating shaft 252 connected to the mounting plate 231 moves accordingly. During the process, the plum blossom cone 254 connected to one end of the fifth rotating shaft 252 via the telescopic member 253 abuts against the second transmission wheel 257, causing the telescopic member 253 to retract. Then, when the plum blossom cone 254 aligns with the plum blossom hole 256 opened on the second transmission wheel 257, the telescopic member 253 resets, causing the plum blossom cone 254 to be inserted into the plum blossom hole 256. Next, under the action of the transmission rod 122, the first transmission wheel 255 and the transmission chain 258, the fifth rotating shaft 252 is driven to rotate. The fifth rotating shaft 252 then drives the second rotating shaft 232 to rotate via the second belt transmission member 251, and finally drives the hollow grinding roller 233 to rotate.

[0060] Furthermore, such as Figure 13As shown, the cooling mechanism 3 is located on one side of the outer wall shaping mechanism 2 and includes a cooling collection component 31 located on one side of the frame 200 for cooling and collecting the edge sealing strip 100, and a burr removal component 32 located on the cooling collection component 31 for removing burrs from the edge sealing strip 100.

[0061] It is worth mentioning that by setting the burr removal component 32 during the cooling process of the edge banding strip 100, the burr is removed in a targeted manner by isolating the burr part, thereby ensuring that the burr is removed quickly without affecting the shape of the edge banding strip 100. This effectively solves the problem that burrs appear at the top of the edge banding strip 100 under high pressure because there is inevitably a certain gap at the splicing position of the two sets of flat plates 213.

[0062] In detail, the shaped edge banding strip 100 is cooled and solidified by the cooling collection component 31 during the guiding process, and excess burrs are removed by the burr removal component 32 during the process.

[0063] Example 2 like Figure 14-16 As shown, components that are the same as or corresponding to those in Embodiment 1 are referred to using the same reference numerals as in Embodiment 1. For simplicity, only the differences from Embodiment 1 are described below. The difference between Embodiment 2 and Embodiment 1 is as follows: Furthermore, such as Figure 14-16 As shown, the cooling collection assembly 31 includes a cooling pool 311 disposed on one side of the frame 200, multiple sets of guide wheels 312 disposed in the frame 200 and the cooling pool 311, and a winding roller 313 disposed on one side of the cooling pool 311. The burr removal assembly 32 includes a scraper 321 connected to the cooling pool 311, an air guide plate 322 connected to one side of the scraper 321, a hot air gun 323 connected to the cooling pool 311 with its outlet located on one side of the air guide plate 322, and an arc plate 324 disposed on the cooling pool 311 and located below the hot air gun 323.

[0064] It is worth mentioning that by setting multiple guide wheels 312 at different heights, the cooling process of the edge banding strip 100 is divided into two steps. In the first step, only the top burr position is exposed, and the burr is removed with the help of the burr removal component 32. In the second step, the entire strip is immersed in the cooling process, thereby ensuring the overall shape stability of the edge banding strip 100.

[0065] In detail, the edge banding strip 100 is gradually cooled and wound up under the drive of the winding roller 313 and the guide wheel 312. During the process, when the edge banding strip 100 just enters the cooling pool 311, the guide wheel 312 is at a relatively high height, so that only the top burr position of the edge banding strip 100 is exposed. As the edge banding strip 100 moves, the excess burrs are cut off under the action of the scraper 321, and the burr position is smoothed again by the hot air gun 323 and the arc plate 324. Finally, the edge banding strip 100 is completely immersed in water and collected after cooling.

[0066] It should be noted that the air guide plate 322 set on one side of the scraper 321 serves two purposes: firstly, it increases the temperature at the air outlet of the hot air gun 323; secondly, the hot air is cooled by the air guide plate 322 and blown out from the scraper 321 to clean the cut burrs and prevent the cut burrs from remaining on the edge sealing strip 100 and melting due to heating, thus affecting the flatness of the surface of the edge sealing strip 100.

[0067] Example 3 like Figure 17 As shown, a production method adapted to a high-temperature resistant lightweight PVC edge banding continuous extrusion production line includes: Step 1, First Shaping Process: First, the mixed and melted raw materials are initially shaped by the overall shaping mechanism 1 at the first shaping station I to generate the product shape. During the process, the forming component 11 performs extrusion molding, and under the action of the stirring component 12, the raw materials that were divided at the connection position of the inner wall of the die head 114 are remixed, thereby reducing the possibility of cracks appearing in the sealing strip 100. Step 2, Second Shaping Process: The edge banding strip 100, which has been initially formed, is then shaped a second time at the second shaping station II. The smoothing component 21 is used to smooth the outer wall of the edge banding strip 100, thereby preventing scratches, cracks, and other issues from appearing on the inner wall of the mold head 114 due to prolonged contact with high-temperature raw materials, which would result in an uneven surface of the edge banding strip 100. When switching between the two sets of smoothing components 21, the fixing component 22 fixes the smoothing component 21 in the working state to enhance the sealing performance. Step 3, finishing process: The two sets of smoothing components 21 are used alternately. During the preparation stage, the smoothing components 21 will also perform inner surface polishing under the action of the repair components 23 to remove residual raw material particles, and at the same time coat a protective film on the surface to ensure the quality of production. Step 4, Cooling and Collection Process: After production, the edge banding strip 100 undergoes water cooling and winding in sequence under the guidance of the cooling and collection component 31. During the process, the burr removal component 32 removes and smooths any burrs that may exist on the top of the edge banding strip 100.

[0068] In the description of this invention, it should be understood that the terms "front and back", "left and right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention.

[0069] Of course, those skilled in the art should understand that the term "a" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple. The term "a" should not be understood as a limitation on the number.

[0070] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art under the technical guidance of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A continuous extrusion production line for high-temperature resistant lightweight PVC edge banding strips, characterized in that, include: Along the raw material conveying direction, there are sequentially arranged a first shaping station I, a second shaping station II, and a collection station III; The first shaping station I is equipped with an integral shaping mechanism for forming the product shape from the raw material by extrusion; the second shaping station II is equipped with an outer wall shaping mechanism for trimming the outer wall of the edge banding strip; and the collection station III is equipped with a cooling mechanism for cooling and collecting the edge banding strip. The outer wall shaping mechanism is mounted on the frame and includes a smoothing component mounted on the frame for trimming the outer wall of the sealing strip, a fixing component mounted on the overall shaping mechanism for preventing raw material spillage, a repair component mounted on the frame for repairing the smoothing component, a first transmission component mounted on the frame for moving the smoothing component and the repair component, and a second transmission component mounted on the repair component for driving the repair component to work. The smoothing assembly includes two sets of annular sprocket chain drive components connected to the frame, a transfer rod connected to the annular sprocket chain drive components, and a smoothing plate connected to one end of the transfer rod; the annular sprocket chain drive components drive the two sets of transfer rods and the smoothing plate on one side to change position simultaneously. The fixing component includes two brackets connected to the flat plate and a buckle connected to the mold head by a spring and corresponding to the bracket; The repair assembly includes two sets of mounting plates connected to the frame, a hollow grinding roller connected to the mounting plate via a second rotating shaft, multiple seepage holes formed on the hollow grinding roller, a cleaning plate connected to the mounting plate, a push rack connected to the mounting plate, a third rotating shaft connected to the frame, and a push gear connected to the third rotating shaft and meshing with the push rack for transmission.

2. The continuous extrusion production line for high-temperature resistant lightweight PVC edge banding strips according to claim 1, characterized in that, The overall shaping mechanism includes a molding component mounted on a frame for extruding and shaping raw materials, and an agitation component mounted on the molding component for remixing dispersed raw materials.

3. The continuous extrusion production line for high-temperature resistant lightweight PVC edge banding strips according to claim 2, characterized in that, The molding assembly includes an extrusion tube connected to the frame, a spiral auger connected inside the extrusion tube and connected to the output end of the first motor, and a die head connected to one end of the extrusion tube. The agitation assembly includes a transmission rod connected to the output end of a first motor via a first belt drive, a drive gear connected to the transmission rod, a drive gear ring sleeved on the mold head and meshing with the drive gear, a follower gear ring connected to the drive gear ring, multiple sets of follower gears connected to the outer wall of the mold head via a first rotating shaft, and agitation blades connected to the first rotating shaft.

4. The continuous extrusion production line for high-temperature resistant lightweight PVC edge banding strips according to claim 3, characterized in that, The first transmission assembly includes a fourth shaft with one end connected to a first gear and the other end connected to an annular sprocket chain drive, a second motor connected to the frame, a first half gear connected to the output end of the second motor and meshing with the first gear, a second gear connected to a third shaft, a second half gear connected to the output end of the second motor and meshing with the second gear, and a half-tooth ring connected to the output end of the second motor and meshing with the second gear.

5. The continuous extrusion production line for high-temperature resistant lightweight PVC edge banding strips according to claim 4, characterized in that, The second transmission assembly includes a fifth shaft connected to the mounting plate and connected to the second shaft via a second belt drive, a swivel cone connected to one end of the fifth shaft via a telescopic member, a first transmission wheel connected to one end of the transmission rod, two second transmission wheels connected to the frame and having swivel holes, and a transmission chain wound around the first and second transmission wheels.

6. The continuous extrusion production line for high-temperature resistant lightweight PVC edge banding strips according to claim 5, characterized in that, The cooling mechanism is located on one side of the outer wall shaping mechanism and includes a cooling and collecting assembly located on one side of the frame for cooling and collecting the edge banding strip, and a burr removal assembly located on the cooling and collecting assembly for removing burrs from the edge banding strip.

7. The high-temperature resistant lightweight PVC edge banding continuous extrusion production line according to claim 6, characterized in that, The cooling collection assembly includes a cooling pool located on one side of the frame, multiple sets of guide wheels located in the frame and the cooling pool, and a take-up roller located on one side of the cooling pool. The burr removal assembly includes a scraper connected to the cooling pool, an air guide plate connected to one side of the scraper, a hot air gun connected to the cooling pool with its output port located on one side of the air guide plate, and an arc-shaped plate disposed on the cooling pool and located below the hot air gun.

8. The production method adapted to the continuous extrusion production line for high-temperature resistant lightweight PVC edge banding strips according to claim 7, characterized in that, include: Step 1, First Shaping Process: The mixed and melted raw materials undergo preliminary shaping at the first shaping station I through the overall shaping mechanism to generate the product shape. During the process, the forming components perform extrusion molding, and under the action of the stirring components, the raw materials that were divided at the connection position of the inner wall of the die head are remixed, thereby reducing the possibility of cracks appearing in the sealing strip. Step 2, Second Shaping Process: The pre-formed edge banding strip undergoes a second shaping process at the second shaping station II. The outer wall of the edge banding strip is smoothed by the smoothing component to prevent scratches and cracks from appearing on the inner wall of the die head due to prolonged contact with high-temperature raw materials, thus preventing the surface of the edge banding strip from being uneven. When switching between the two sets of smoothing components, the fixing component fixes the smoothing component in the working state to enhance the sealing performance. Step 3, finishing process: Two sets of smoothing components are used alternately. During the preparation stage, the smoothing components will also be polished on the inner surface under the action of the repair components to remove residual raw material particles. At the same time, a protective film is coated on the surface to ensure the quality of production. Step 4, Cooling and Collection Process: After production, the edge banding strips undergo water cooling and rewinding in sequence under the guidance of the cooling and collection components. During the process, the burr removal components remove and smooth any burrs that may exist on the top of the edge banding strips.

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