Melting extrusion device and method based on polystyrene particle processing

Abstract

The invention relates to the technical field of extruders, and discloses a melt extrusion device based on polystyrene particle processing, the melt extrusion device comprises a base, a protection frame fixedly connected to the top of the base and a conveying assembly arranged in the protection frame, the interior of the protection frame is fixedly connected with a conveying pipe, and the surface of the conveying pipe is provided with a heating sleeve; one end of the conveying pipe fixedly communicates with a material storage box, one side of the material storage box fixedly communicates with an extrusion nozzle, a material scraping assembly is arranged in the material storage box, and a feeding assembly is arranged in the material storage box; through cooperative use of a scraping assembly and a feeding assembly, the scraping assembly enables two extrusion plates to be close to each other, an air inlet pipe is connected with an external air source, air enters a second fixing block through the air inlet pipe and a corrugated pipe, the air drives an extension rod to move, and then the extension rod pushes remaining materials into an extrusion nozzle through a feeding plate; therefore, the effect of residual extrusion is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of extruders, in particular to a melt extrusion device and method based on polystyrene particle processing. Background Art

[0002] Polystyrene is a common thermoplastic plastic that is widely used in the manufacture of various products, including packaging materials, disposable tableware, home appliance casings, etc. Polystyrene particles are one of the basic raw materials for the production of these products. Polystyrene is processed and formed by mixing polystyrene with other raw materials and then subjecting the mixed raw materials to processes such as heating, extrusion, and cooling.

[0003] Publication No. CN219564040U discloses a melt extrusion device for plastic particles, including an injection molding base, on which an injection molding body and an injection mold are relatively arranged, the injection molding body is used to inject molten plastic raw material into the injection mold, the injection molding body includes a long axis shell and an extrusion shaft, the extrusion shaft is rotatably arranged in the long axis shell, the long axis shell and the extrusion shaft are coaxially arranged, a spiral separation blade is fixedly mounted on the extrusion shaft, an electric heating rod is coaxially arranged in the extrusion shaft, and a gap is formed between the outer wall of the electric heating rod and the inner wall of the extrusion shaft.

[0004] Although the above-mentioned application and the prior art can avoid the situation where excessive accumulation of raw materials causes incomplete melting and ensure the extrusion molding quality of plastic particles, when the above-mentioned application and the prior art are actually used, when there is too little melted raw material in the injection molding body, a small amount of raw material will remain inside it due to the lack of subsequent extrusion force, thus affecting subsequent use, and when the remaining raw material is extruded, the remaining raw material will remain in the inner wall where the extrusion port contacts the material box, thus affecting subsequent extrusion molding, and after the remaining raw material is cleaned and extruded, due to the stickiness of the raw material, it will adhere to the surface of the cleaning block, so it needs to be cleaned. When different raw materials are processed continuously, it will affect its production efficiency. Therefore, we propose a melt extrusion device and method based on polystyrene particle processing. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a melt extrusion device and method based on polystyrene particle processing, which has the advantages of residual extrusion, preventing inner wall residue and preventing adhesion, etc., and solves the problem that when the above-mentioned application and the prior art are actually used, when there is too little melted raw material in the injection molding body, a small amount of raw material will remain inside it due to lack of subsequent extrusion force, thus affecting subsequent use, and when the remaining raw material is extruded, the remaining raw material will remain in the inner wall where the extrusion port contacts the material box, thus affecting subsequent extrusion molding, and after the remaining raw material is cleaned and extruded, due to the adhesion of the raw material, it will adhere to the surface of the cleaning block, so it needs to be cleaned, and when different raw materials are continuously processed, its production efficiency will be affected.

[0006] In order to achieve the above-mentioned purposes of residual extrusion, preventing inner wall residue and preventing adhesion, the present invention provides the following technical solutions: a melt extrusion device based on polystyrene particle processing, comprising: a base, a protective frame fixedly connected to the top of the base, and a conveying component arranged inside the protective frame, A console, fixedly connected to the top of the base; A first drive motor is fixedly connected to the top of the console, a conveying end of the first drive motor is fixedly connected to a auger rod, a conveying pipe is fixedly connected to the inside of the protection frame, a heating sleeve is provided on the surface of the conveying pipe, a feed hopper is fixedly connected to the surface of the conveying pipe, one end of the conveying pipe is fixedly connected to a storage box, and one side of the storage box is fixedly connected to an extrusion nozzle; A scraper assembly is arranged inside the storage box and is used to collect residual materials on the inner wall of the storage box; A feeding assembly is arranged inside the material storage box and is used to transport the remaining material inside the material storage box; The cleaning component is arranged at one end of the protection frame and is used for cleaning the feeding component to prevent the material from adhering to the surface of the feeding component and affecting its subsequent use.

[0007] Furthermore, the scraper assembly includes a second drive motor fixedly connected to the inside of the protection frame, the output end of the second drive motor is fixedly connected to a drive rod, and the surface of the drive rod is fixedly connected to two active sprockets.

[0008] Furthermore, the scraper assembly also includes a screw rod rotatably connected to the top and bottom of the storage box, a driven sprocket is fixedly connected to the surface of the screw rod, and the driving sprocket and the driven sprocket are transmitted through a chain.

[0009] Furthermore, the scraper assembly also includes a screw plate threadedly connected to the surface of the screw rod, and the four corners of the surface of the screw plate are fixedly connected to extension rods, the surface of the extension rod away from the screw plate is fixedly connected to an extrusion plate, and the surface of the extrusion plate away from the extension rod is fixedly connected to two extrusion blocks.

[0010] Furthermore, the feeding assembly includes a fixed plate fixedly connected to the inside of the material storage box, a movable groove is provided at one end of the fixed plate, and a blocking groove is provided on the inner surface of the movable groove.

[0011] Furthermore, a blocking plate is slidably connected to the inside of the blocking groove, a first fixed block is fixedly connected to the surface of the blocking plate, a telescopic rod is fixedly connected to the top of the first fixed block, and the top of the telescopic rod is fixedly connected to the inside of the blocking groove.

[0012] Furthermore, a second fixed block is fixedly connected to the surface of the blocking plate, the second fixed block is slidably connected to the inside of the movable groove, the top of the second fixed block is fixedly connected to a bellows, the top of the bellows is fixedly connected to an air intake pipe, a first solenoid valve is provided on the surface of the air intake pipe, one side of the second fixed block is fixedly connected to an extension rod, and one end of the extension rod is fixedly connected to a feeding plate.

[0013] Furthermore, the cleaning assembly includes an air duct fixedly connected to the surface of the air inlet pipe and a cleaning box fixedly connected to one side of the protective frame, a second solenoid valve is provided on the surface of the air duct, and the air duct extends to the interior of the cleaning box.

[0014] Furthermore, a plurality of fixed cylinders are fixedly connected to the interior of the cleaning box, and surfaces of the plurality of fixed cylinders are fixedly connected to one end of the air duct, and a first spring is fixedly connected to the interior of the plurality of fixed cylinders, and one end of the first spring is fixedly connected to an extension cylinder, and the extension cylinder is slidably connected to the interior of the fixed cylinder, and an end of the extension cylinder away from the first spring is fixedly connected to a cleaning plate.

[0015] The present invention also provides a melt extrusion method based on polystyrene particle processing, and the melt extrusion method specifically comprises the following steps: Step 1: The raw material is conveyed through the auger rod, the heating sleeve heats the raw material to form it, and then the formed raw material is continuously conveyed to the storage box, and the raw material is extruded through the extrusion nozzle to form it; Step 2: scrape the raw materials on the inner wall of the storage box by using the scraping component so that the raw materials will not remain inside the storage box; Step 3: When the scraper assembly is in operation, it drives the feeding assembly to move to a suitable position, and squeezes out the remaining material in the storage box through the feeding assembly; Step 4: After the feeding component extrude the raw material, the feeding component continues to operate to drive the cleaning component to work, so that the cleaning component cleans the feeding component.

[0016] Compared with the prior art, the present invention provides a melt extrusion device and method based on polystyrene particle processing, which has the following beneficial effects: 1. The melt extrusion device and method based on polystyrene particle processing, through the coordinated use of a scraper assembly and a feeder assembly, the scraper assembly brings two extrusion plates close to each other, so that four extrusion blocks form a cavity, and the feeder plate is stored inside the cavity, and then the air inlet pipe is connected to the external air source, and the gas enters the interior of the second fixed block through the air inlet pipe and the bellows, so that the gas drives the extension rod to move, and then the extension rod pushes the remaining material to the interior of the extrusion nozzle through the feeder plate, and then the remaining material in the storage box is extruded, thereby achieving the effect of residual extrusion.

[0017] 2. The melt extrusion device and method based on polystyrene particle processing starts the second drive motor through the use of a scraper assembly. The second drive motor drives the active sprocket to rotate through the drive rod. The active sprocket drives the driven sprocket to rotate through the chain, so that the screw drives the screw plate to move. The screw plate drives the extrusion plate to move in the storage box through the extension rod, so that the extrusion plate scrapes the material inside the storage box, thereby avoiding the material from remaining inside the storage box, thereby achieving the effect of preventing residue on the inner wall.

[0018] 3. The melt extrusion device and method based on polystyrene particle processing, through the coordinated use of a feeding component and a cleaning component, when the feeding plate coincides with the outer end of the extrusion nozzle, the first solenoid valve is closed and the second solenoid valve is opened, and the gas in the air intake pipe is transported to the interior of the fixed cylinder through the air guide pipe, thereby driving the extension cylinder to move inside the fixed cylinder, and the extension cylinder drives the cleaning plate to move out of the cleaning box during the movement, so that one end of the cleaning plate scrapes off the material remaining at one end of the feeding plate, thereby preventing the remaining material from adhering to one end of the feeding plate and affecting the subsequent use of the feeding plate, thereby achieving the effect of preventing adhesion.

[0019] Other features and advantages of the present invention will be described in the following description, and part of them will become obvious from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention from another viewing angle; Figure 3It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention; Figure 4 It is a schematic diagram of a partially cutaway three-dimensional structure of the present invention from another viewing angle; Figure 5 It is a schematic diagram of the three-dimensional structure of the material storage box of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the material storage box of the present invention from another perspective; Figure 7 It is a schematic diagram of the cutaway three-dimensional structure of the material storage box of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the second driving motor of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the fixing plate of the present invention; Fig.10 It is a schematic diagram of the cross-sectional three-dimensional structure of the fixing plate of the present invention; Fig.11 It is a schematic cross-sectional view of the interior of the fixing plate of the present invention; Fig.12 This is a schematic diagram of the three-dimensional structure of the blocking plate of the present invention; Fig.13 This is a schematic diagram of the cross-sectional three-dimensional structure of the cleaning box of the present invention; Fig.14 It is a schematic diagram of the cross-sectional three-dimensional structure of the fixing cylinder of the present invention.

[0021] In the figure: 1, base; 11, control console; 12, protection frame; 2, conveying assembly; 21, first driving motor; 211, auger rod; 22, conveying pipe; 221, heating sleeve; 23, feed hopper; 24, storage box; 241, extrusion nozzle; 3, scraper assembly; 31, second driving motor; 32, driving rod; 321, driving sprocket; 322, chain; 33, screw; 331, driven sprocket; 34, screw plate; 341, extension rod; 342, extrusion plate; 343, extrusion block; 4. Feeding assembly; 41. Fixed plate; 411. Moving groove; 412. Blocking groove; 42. Blocking plate; 421. First fixed block; 422. Telescopic rod; 43. Second fixed block; 431. Bellows; 432. Air inlet pipe; 433. First solenoid valve; 434. Extension rod; 435. Feeding plate; 5. Cleaning assembly; 51. Air guide pipe; 511. Second solenoid valve; 52. Cleaning box; 521. Fixed cylinder; 522. First spring; 523. Extension cylinder; 524. Cleaning plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the embodiments of the present application, the devices or elements referred to or implied must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present application. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise precisely and specifically specified.

[0024] For specific embodiment 1, please refer to Figures 1 to 4 A melt extrusion device based on polystyrene particle processing includes: a base 1, a protection frame 12 fixedly connected to the top of the base 1, and a conveying component 2 arranged inside the protection frame 12, A console 11 is fixedly connected to the top of the base 1; A first driving motor 21 is fixedly connected to the top of the control console 11, a conveying end of the first driving motor 21 is fixedly connected to a auger rod 211, a conveying pipe 22 is fixedly connected to the inside of the protection frame 12, a heating sleeve 221 is provided on the surface of the conveying pipe 22, a feed hopper 23 is fixedly connected to the surface of the conveying pipe 22, one end of the conveying pipe 22 is fixedly connected to a material storage box 24, and one side of the material storage box 24 is fixedly connected to an extrusion nozzle 241; The scraper assembly 3 is arranged inside the storage box 24 and is used to collect the residual material on the inner wall of the storage box 24; The feeding assembly 4 is arranged inside the storage box 24 and is used to transport the remaining materials inside the storage box 24; The cleaning component 5 is arranged at one end of the protection frame 12 and is used to clean the feeding component 4 to prevent the material from adhering to the surface of the feeding component 4 and affecting its subsequent use; It should be noted that the auger rod 211 is disposed inside the delivery pipe 22, and the surface of the auger rod 211 is in close contact with the inner surface of the delivery pipe 22, and the delivery pipe 22 extends to the inside of the storage box 24 and is located inside the fixed plate 41; When the raw materials need to be melted and extruded, the raw materials are put into the feed hopper 23, and then the first drive motor 21 and the heating sleeve 221 are started through the control console 11, so that the heating sleeve 221 heats the inside of the conveying pipe 22, and the first drive motor 21 drives the auger rod 211 to rotate, so that the raw materials that fall into the inside of the conveying pipe 22 are gradually moved by the auger rod 211. When the raw materials move inside the conveying pipe 22, the heating sleeve 221 melts the raw materials, and as the raw materials are melted, they are transported to the inside of the storage box 24 by the auger rod 211. As the raw materials inside the storage box 24 continue to increase, the raw materials inside the storage box 24 are extruded and formed through the extrusion nozzle 241; For specific embodiment 2, please refer to Figures 1 to 8 According to a melt extrusion device based on polystyrene particle processing proposed in the specific embodiment 1, this embodiment provides a further technical solution: The scraper assembly 3 includes a second driving motor 31 fixedly connected to the inside of the protection frame 12, the output end of the second driving motor 31 is fixedly connected to a driving rod 32, the surface of the driving rod 32 is fixedly connected to two driving sprockets 321, the scraper assembly 3 also includes a screw rod 33 rotatably connected to the top and bottom of the storage box 24, the surface of the screw rod 33 is fixedly connected to a driven sprocket 331, the driving sprocket 321 and the driven sprocket 331 are driven by a chain 322, the scraper assembly 3 also includes a screw plate 34 threadedly connected to the surface of the screw rod 33, the surface of the screw plate 34 is fixedly connected to an extension rod 341 at four corners, the surface of the extension rod 341 away from the screw plate 34 is fixedly connected to an extrusion plate 342, and the surface of the extrusion plate 342 away from the extension rod 341 is fixedly connected to two extrusion blocks 343; It should be noted that the end of the screw 33 away from the material storage box 24 is rotatably connected to the inside of the protection frame 12, and the extrusion block 343 can scrape the raw materials on the inner surface of the material storage box 24 during the movement. When the extrusion blocks 343 are squeezed against each other, the raw materials at the bottom of the extrusion blocks 343 can be moved by the extrusion force. When it is necessary to scrape the raw materials on the inner wall of the material storage box 24, the second drive motor 31 is started through the control console 11, and the second drive motor 31 drives the active sprocket 321 to rotate through the drive rod 32, and the active sprocket 321 drives the driven sprocket 331 to rotate through the chain 322, so that the screw rod 33 drives the screw plate 34 to move, and the screw plate 34 drives the extension rod 341 to move inside the material storage box 24 during the movement, so that the extension rod 341 drives the extrusion plate 342 to move, and during the movement of the extrusion plate 342, one side of the extrusion plate 342 scrapes the raw materials on the inner wall of the material storage box 24, so that no raw materials will remain on the inner wall of the material storage box 24; For specific embodiment 3, please refer to Figures 1 to 12According to the melt extrusion device based on polystyrene particle processing proposed in the second specific embodiment, this embodiment provides a further technical solution: The feeding assembly 4 includes a fixed plate 41 fixedly connected to the inside of the storage box 24, a moving groove 411 is opened at one end of the fixed plate 41, a blocking groove 412 is opened on the inner surface of the moving groove 411, and a blocking plate 42 is slidably connected to the inside of the blocking groove 412, a first fixed block 421 is fixedly connected to the surface of the blocking plate 42, a telescopic rod 422 is fixedly connected to the top of the first fixed block 421, and the top of the telescopic rod 422 is fixedly connected to the inside of the blocking groove 412, a second fixed block 43 is fixedly connected to the surface of the blocking plate 42, the second fixed block 43 is slidably connected to the inside of the moving groove 411, a bellows 431 is fixedly connected to the top of the second fixed block 43, an air intake pipe 432 is fixedly connected to the top of the bellows 431, a first solenoid valve 433 is provided on the surface of the air intake pipe 432, an extension rod 434 is fixedly connected to one side of the second fixed block 43, and a feeding plate 435 is fixedly connected to one end of the extension rod 434; It should be noted that an L-shaped channel for gas circulation is provided inside the second fixed block 43, and the top of the L-shaped channel is fixedly connected to the bellows 431, and one end of the L-shaped channel is fixedly connected to one end of the extension rod 434. When the blocking plate 42 is moving, the bellows 43 can extend and contract, and a second spring is provided inside the extension rod 434. When gas enters the extension rod 434, the gas can push the extension rod 434 to move. The shape of the feed plate 435 is adapted to the internal shape of the extrusion nozzle 241 and the shape of the cavity formed by the extrusion block 343. When it is necessary to extrude the remaining raw materials in the storage box 24, the extrusion plate 342 drives the extrusion block 343 to move synchronously during the movement of the extrusion plate 342. As the upper and lower extrusion plates 342 gradually move, each two extrusion blocks 343 overlap with each other, thereby forming a cavity between the extrusion block 343 and the extrusion plate 342, so that the remaining materials are stored in the cavity. During the movement of the extrusion plate 342, the extrusion plate 342 drives the blocking plate 42 to move through the feeding plate 435, the extension rod 434 and the second fixed block 43, so that the blocking plate 42 blocks the connection between the conveying pipe 22 and the storage box 24. During the movement of the blocking plate 42, it drives the first fixed block 421 to move, so that the telescopic rod 422 is stretched. When the extrusion plate 342 is extruded, the first fixed block 421 is driven to move, and the telescopic rod 422 is stretched. When the plate 342 returns to its initial state, the blocking plate 42 can return to its original state, and then the external air source is connected to the air inlet pipe 432, and the first solenoid valve 433 is opened and the cleaning component 5 is closed through the control console 11, so that the air cylinder in the external air source enters the bellows 431 through the air inlet pipe 432, and then the extension rod 434 is driven to gradually extend through the second fixed block 431, and the feed plate 435 is driven to move during the extension of the extension rod 434, so that the feed plate 435 pushes the remaining material in the cavity, and when the extension rod 434 moves to the limit, one side of the feed plate 435 overlaps with the outer end of the extrusion nozzle 241, and then the remaining raw materials in the storage box 24 are squeezed out, thereby preventing the storage box 24 from retaining the remaining material; For specific example 4, please refer to Figures 1 to 14 According to the melt extrusion device based on polystyrene particle processing proposed in the specific embodiment 3, this embodiment provides a further technical solution: The cleaning assembly 5 includes an air guide pipe 51 fixedly connected to the surface of the air inlet pipe 432 and a cleaning box 52 fixedly connected to one side of the protection frame 12, a second solenoid valve 511 is arranged on the surface of the air guide pipe 51, the air guide pipe 51 extends to the interior of the cleaning box 52, a plurality of fixed cylinders 521 are fixedly connected to the interior of the cleaning box 52, the surfaces of the plurality of fixed cylinders 521 are fixedly connected to one end of the air guide pipe 51, the interiors of the plurality of fixed cylinders 521 are fixedly connected to a first spring 522, one end of the first spring 522 is fixedly connected to an extension cylinder 523, the extension cylinder 523 is slidably connected to the interior of the fixed cylinder 521, and one end of the extension cylinder 523 away from the first spring 522 is fixedly connected to a cleaning plate 524; It should be noted that the console 11 is electrically connected to the first drive motor 21, the heating sleeve 221, the second drive motor 31, the first solenoid valve 433 and the second solenoid valve 511, and the first drive motor 21, the heating sleeve 221, the second drive motor 31, the first solenoid valve 433 and the second solenoid valve 511 are turned on and off by pressing the operation button on the surface of the console 11; When one side of the feed plate 435 needs to be cleaned, when one side of the feed plate 435 overlaps with the outer end of the extrusion nozzle 241, the first solenoid valve 433 is closed and the second solenoid valve 511 is opened, and the gas in the air inlet pipe 432 enters the interior of the fixed cylinder 521 through the air guide pipe 51, so that the gas pushes the extension cylinder 523 and the interior of the fixed cylinder 521 to move. During the movement of the extension cylinder 523, the first spring 522 is stretched and the cleaning plate 524 is moved out of the cleaning box 52. During the movement of the cleaning plate 524, one side of the cleaning plate 524 scrapes the end of the feed plate 435 that overlaps with the extrusion nozzle 241, so that the remaining raw materials will no longer adhere to the surface of the feed plate 435 and the interior of the extrusion nozzle 241; Specific embodiment 5, the present invention also provides a melt extrusion method based on polystyrene particle processing, and the melt extrusion method specifically comprises the following steps: Step 1: The raw material is transported through the auger rod 211, and the heating sleeve 221 heats and shapes the raw material, and then the shaped raw material is continuously transported to the storage box 24, and the raw material is extruded and shaped through the extrusion nozzle 241; Step 2: scrape the raw materials on the inner wall of the storage box 24 by the scraper assembly 3 so that the raw materials will not remain inside the storage box 24; Step 3: When the scraper assembly 3 is in operation, it drives the feeding assembly 4 to move to a suitable position, and the remaining material in the storage box 24 is squeezed out by the feeding assembly 4; Step 4: After the feeding component 4 extrude the raw material, the feeding component 4 continues to operate to drive the cleaning component 5 to work, so that the cleaning component 5 cleans the feeding component 4.

[0025] Working principle: when in use, the raw material is put into the feed hopper 23, and then the first drive motor 21 and the heating sleeve 221 are started through the control console 11, so that the heating sleeve 221 heats the inside of the conveying pipe 22, and the first drive motor 21 drives the auger rod 211 to rotate, so that the raw material falling into the inside of the conveying pipe 22 is gradually moved by the auger rod 211, and when the raw material moves inside the conveying pipe 22, the heating sleeve 221 melts the raw material, and as the raw material is melted, it is transported to the inside of the storage box 24 by the auger rod 211. As the raw material inside the storage box 24 continues to increase, the raw material inside the storage box 24 is extruded and formed through the extrusion nozzle 241. When the raw material on the inner wall of the storage box 24 needs to be scraped, the raw material is scraped off by the auger rod 211. The control console 11 starts the second driving motor 31, and the second driving motor 31 drives the active sprocket 321 to rotate through the driving rod 32, and the active sprocket 321 drives the driven sprocket 331 to rotate through the chain 322, so that the screw rod 33 drives the screw plate 34 to move, and the screw plate 34 drives the extension rod 341 to move inside the storage box 24 during the movement, so that the extension rod 341 drives the extrusion plate 342 to move. During the movement of the extrusion plate 342, one side of the extrusion plate 342 scrapes the raw material on the inner wall of the storage box 24, so that no raw material will remain on the inner wall of the storage box 24. When the remaining raw material in the storage box 24 needs to be extruded, the extrusion plate 342 drives the extrusion block 343 to move synchronously during the movement of the extrusion plate 342. The extrusion plates 342 gradually move so that every two extrusion blocks 343 overlap with each other, thereby forming a cavity between the extrusion blocks 343 and the extrusion plates 342, so that the remaining material is stored in the cavity. During the movement of the extrusion plates 342, the extrusion plates 342 drive the blocking plate 42 to move through the feeding plate 435, the extension rod 434 and the second fixed block 43, so that the blocking plate 42 blocks the connection between the conveying pipe 22 and the storage box 24. During the movement of the blocking plate 42, the first fixed block 421 is driven to move so that the telescopic rod 422 is stretched. When the extrusion plates 342 return to their initial state, the blocking plate 42 can return to its original state, and then the external air source is connected to the air inlet pipe 432, and the first solenoid valve 433 is opened through the control console 11. And close the cleaning component 5, so that the air cylinder in the external air source enters the bellows 431 through the air inlet pipe 432, and then drives the extension rod 434 to gradually extend through the second fixed block 43, and drives the feed plate 435 to move during the extension of the extension rod 434, so that the feed plate 435 pushes the remaining material in the cavity. When the extension rod 434 moves to the limit, one side of the feed plate 435 coincides with the outer end of the extrusion nozzle 241, and then the remaining raw materials inside the storage box 24 are squeezed out, thereby preventing the remaining material from remaining in the storage box 24. When it is necessary to clean one side of the feed plate 435, when one side of the feed plate 435 coincides with the outer end of the extrusion nozzle 241, the first solenoid valve 433 is closed and the second solenoid valve 511 is opened.The gas in the air inlet pipe 432 enters the interior of the fixed cylinder 521 through the air guide pipe 51, so that the gas pushes the extension cylinder 523 to move inside the fixed cylinder 521. During the movement of the extension cylinder 523, the first spring 522 is stretched and the cleaning plate 524 is moved out of the cleaning box 52. During the movement of the cleaning plate 524, one side of the cleaning plate 524 scrapes the end of the feed plate 435 that overlaps with the extrusion nozzle 241, so that the remaining raw materials will no longer adhere to the surface of the feed plate 435 and the interior of the extrusion nozzle 241.

[0026] The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Parallel: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism, which allows for non-absolute parallelism due to factors such as assembly tolerance, design tolerance, and the influence of structural flatness. Small angular errors are allowed. For example, an assembly error range of less than 10 degrees can be understood as a parallel relationship.

[0029] Vertical: The verticality defined in this application is not limited to an absolute vertical intersection relationship (angle of 90 degrees). It allows for non-absolute vertical intersection relationships caused by factors such as assembly tolerance, design tolerance, and influence of structural flatness. It also allows for errors in a small angle range. For example, the assembly error range of 80 to 100 degrees can be understood as a vertical relationship.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A melt extrusion device based on polystyrene particle processing, comprising: A base (1), a protective frame (12) fixedly connected to the top of the base (1), and a conveying assembly (2) arranged inside the protective frame (12), characterized in that: A console (11) fixedly connected to the top of the base (1); A first drive motor (21) is fixedly connected to the top of the control console (11); a conveying end of the first drive motor (21) is fixedly connected to a auger rod (211); a conveying pipe (22) is fixedly connected to the interior of the protection frame (12); a heating sleeve (221) is provided on the surface of the conveying pipe (22); a feed hopper (23) is fixedly connected to the surface of the conveying pipe (22); one end of the conveying pipe (22) is fixedly connected to a material storage box (24); and one side of the material storage box (24) is fixedly connected to an extrusion nozzle (241); A scraper assembly (3) is arranged inside the storage box (24) and is used to collect residual material on the inner wall of the storage box (24); A material feeding assembly (4) is arranged inside the material storage box (24) and is used to transport the remaining material inside the material storage box (24); A cleaning component (5) is arranged at one end of the protection frame (12) and is used to clean the feeding component (4) to prevent materials from adhering to the surface of the feeding component (4) and affecting its subsequent use.

2. A melt extrusion device based on polystyrene particle processing according to claim 1, characterized in that: The scraper assembly (3) comprises a second drive motor (31) fixedly connected to the inside of the protection frame (12), the output end of the second drive motor (31) is fixedly connected to a drive rod (32), and the surface of the drive rod (32) is fixedly connected to two driving sprockets (321).

3. A melt extrusion device based on polystyrene particle processing according to claim 2, characterized in that: The scraper assembly (3) further comprises a screw rod (33) rotatably connected to the top and bottom of the material storage box (24); a driven sprocket (331) is fixedly connected to the surface of the screw rod (33); and the driving sprocket (321) and the driven sprocket (331) are driven via a chain (322).

4. A melt extrusion device based on polystyrene particle processing according to claim 3, characterized in that: The scraper assembly (3) further comprises a screw plate (34) threadedly connected to the surface of the screw rod (33); extension rods (341) are fixedly connected at four corners of the surface of the screw plate (34); an extrusion plate (342) is fixedly connected to the surface of the extension rod (341) away from the screw plate (34); and two extrusion blocks (343) are fixedly connected to the surface of the extrusion plate (342) away from the extension rod (341).

5. A melt extrusion device based on polystyrene particle processing according to claim 1, characterized in that: The feeding assembly (4) comprises a fixed plate (41) fixedly connected to the inside of the material storage box (24); a moving groove (411) is provided at one end of the fixed plate (41); and a blocking groove (412) is provided on the inner surface of the moving groove (411).

6. A melt extrusion device based on polystyrene particle processing according to claim 5, characterized in that: A blocking plate (42) is slidably connected inside the blocking groove (412), a first fixing block (421) is fixedly connected to the surface of the blocking plate (42), a telescopic rod (422) is fixedly connected to the top of the first fixing block (421), and the top of the telescopic rod (422) is fixedly connected to the inside of the blocking groove (412).

7. A melt extrusion device based on polystyrene particle processing according to claim 6, characterized in that: A second fixed block (43) is fixedly connected to the surface of the blocking plate (42), the second fixed block (43) is slidably connected to the inside of the movable groove (411), the top of the second fixed block (43) is fixedly connected to a bellows (431), the top of the bellows (431) is fixedly connected to an air intake pipe (432), a first solenoid valve (433) is provided on the surface of the air intake pipe (432), one side of the second fixed block (43) is fixedly connected to an extension rod (434), one end of the extension rod (434) is fixedly connected to a feeding plate (435).

8. A melt extrusion device based on polystyrene particle processing according to claim 7, characterized in that: The cleaning assembly (5) comprises an air guide pipe (51) fixedly connected to the surface of the air inlet pipe (432) and a cleaning box (52) fixedly connected to one side of the protection frame (12); a second solenoid valve (511) is provided on the surface of the air guide pipe (51); and the air guide pipe (51) extends to the interior of the cleaning box (52).

9. A melt extrusion device based on polystyrene particle processing according to claim 8, characterized in that: A plurality of fixed cylinders (521) are fixedly connected to the interior of the cleaning box (52); surfaces of the plurality of fixed cylinders (521) are fixedly connected to one end of the air guide tube (51); a first spring (522) is fixedly connected to the interior of the plurality of fixed cylinders (521); one end of the first spring (522) is fixedly connected to an extension cylinder (523); the extension cylinder (523) is slidably connected to the interior of the fixed cylinder (521); and one end of the extension cylinder (523) away from the first spring (522) is fixedly connected to a cleaning plate (524).

10. A melt extrusion method based on polystyrene particle processing, using a melt extrusion device based on polystyrene particle processing as claimed in any one of claims 1 to 9, the melt extrusion method specifically comprising the following steps: Step 1: The raw material is conveyed through the auger rod (211), the heating sleeve (221) heats the raw material to form it, and then the formed raw material is continuously conveyed to the material storage box (24), and the raw material is extruded and formed through the extrusion nozzle (241); Step 2: scraping the raw materials on the inner wall of the material storage box (24) by means of a scraping assembly (3) so that the raw materials do not remain inside the material storage box (24); Step 3: When the scraping component (3) is in operation, it drives the feeding component (4) to move to a suitable position, and the remaining material in the storage box (24) is squeezed out through the feeding component (4); Step 4: After the feeding component (4) extrude the raw material, the feeding component (4) continues to operate to drive the cleaning component (5) to work, so that the cleaning component (5) cleans the feeding component (4).

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