Single-screw squeezing machine and method for preparing butadiene styrene rubber

Abstract

The invention relates to the technical field of spiral wringing machines, and discloses a single-spiral wringing machine and method for preparing butadiene styrene rubber, the single-spiral wringing machine comprises an operation frame, a separation cylinder fixedly connected in the operation frame, a feeding port fixedly communicated with the top of the separation cylinder, and a wringing mechanism arranged on the surface of the operation frame, the bottom of the operation frame fixedly communicates with a collecting box, and the surface of the collecting box fixedly communicates with a liquid pipe. The processing assembly is arranged in the operation frame; through use of the processing assembly, a processing air cylinder is started, the processing air cylinder drives a mounting ring to move through a processing rod, so that the mounting ring drives a processing box to move on the surface of a separation barrel through an operation box, and when the processing box moves, an arc-shaped scraper in the processing box scrapes the surface of the separation barrel; and raw materials overflowing from the surface of the separation barrel are scraped by the arc-shaped scraping plate, so that the overflowing raw materials are prevented from being adhered to the surface of the separation barrel, and the surface treatment effect is achieved.

Description

Technical Field

[0002] This invention relates to the field of screw extruder technology, specifically to a single screw extruder and method for preparing styrene-butadiene rubber. Background Technology

[0003] A single-screw dewatering machine, also known as a single-screw press, screw extrusion dewatering machine, or screw pulping machine, works on the principle of applying continuous and gradually increasing pressure to the material through a rotating screw shaft within a sealed cylindrical screen. This forces the liquid (water, oil, etc.) out of the material through the screen, achieving solid-liquid separation.

[0004] CN218576699U discloses a single-screw extruder structure for preparing styrene-butadiene rubber, including a housing and a screw. The housing has a feed inlet at one end and a discharge outlet at the other end. The screw includes a fixed shaft and multiple extrusion cutter discs and multiple transition sleeves sleeved on the fixed shaft. Each extrusion cutter disc is provided with a spiral blade, and a transition sleeve is provided between two adjacent extrusion cutter discs, so that the screw is divided into a low-pressure section, a medium-pressure section, a high-pressure section and a die head in sequence according to the material conveying direction. In the high-pressure section, the spiral blades of the two extrusion cutter discs near the die head are respectively provided with a first spiral opening and a second spiral opening, which allows some material to flow back to the medium-pressure section through the opening during conveying and extrusion, thereby increasing the residence time of the material in the extruder. Although the aforementioned applications and prior art can further improve the extrusion, dehydration, and plasticizing capabilities of the extruder, when the aforementioned applications and prior art extrude and dehydrate the raw materials for preparing styrene-butadiene rubber (SBR), a small amount of raw material will overflow through the openings on the surface of the transition sleeve during the dehydration process. If the overflowing part is not treated in time, the raw material will stick to the surface of the transition sleeve, thus affecting subsequent normal use. Furthermore, when treating the raw material remaining on the surface of the transition sleeve, the residual raw material will enter the openings, thus affecting subsequent normal use. Moreover, when treating the raw material on the surface, the treated raw material will accumulate in a certain place, thus affecting subsequent continuous use. Therefore, this invention proposes a single-screw extruder and method for preparing SBR. Summary of the Invention

[0005] (a) Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a single-screw extruder and method for preparing styrene-butadiene rubber (SBR). This method offers advantages such as surface treatment, pore drainage, and prevention of accumulation. It solves the problems of the aforementioned applications and existing technologies, where a small amount of raw material overflows through openings on the transition sleeve surface during dehydration of the raw material. If this overflow is not treated promptly, the raw material adheres to the transition sleeve surface, affecting subsequent normal use. Furthermore, when treating the residual raw material on the transition sleeve surface, the residual material enters the openings, further affecting subsequent normal use. Additionally, when treating the surface raw material, the treated material accumulates in one place, affecting continued use.

[0006] (II) Technical Solution To achieve the aforementioned objectives of surface treatment, pore venting, and prevention of accumulation, this invention provides the following technical solution: a single-screw extruder for preparing styrene-butadiene rubber, comprising: an operating frame and a separating cylinder fixedly connected inside the operating frame. The feed inlet is fixedly connected to the top of the separator cylinder. The surface of the operating frame is provided with a squeezing mechanism. The bottom of the operating frame is fixedly connected to a collection box. The surface of the collection box is fixedly connected to a liquid pipe. A processing component, located inside the operating frame, is used to process the rubber residue on the surface of the separation cylinder. The processing component includes four operating boxes slidably connected inside the operating frame. Each of the four operating boxes has a processing box fixedly connected to its surface, and an arc-shaped scraper is fixedly connected to the inside of each processing box. The through-hole assembly is located inside the operation box and is used to process the rubber inside the opening of the separator cylinder to prevent the rubber from clogging the opening and affecting the squeezing effect. An anti-adhesion component, located inside the processing box, is used to collect rubber on the surface of the processing component, preventing the rubber from accumulating in one place.

[0007] Furthermore, the squeezing mechanism includes a squeezing motor fixedly connected to one side inside the operating frame, and an auger rod fixedly connected to the output end of the squeezing motor, the auger rod being disposed inside the separating cylinder.

[0008] Furthermore, the squeezing mechanism also includes an adjusting cylinder fixedly connected inside the other side of the operating frame. The output end of the adjusting cylinder is differentially connected to an adjusting rod, and one end of the adjusting rod is fixedly connected to an adjusting cone.

[0009] Furthermore, the processing assembly also includes a processing cylinder fixedly connected inside the operating frame. The output end of the processing cylinder is differentially connected to a processing rod. The end of the processing rod away from the processing cylinder is fixedly connected to a mounting ring. One end of the mounting ring is fixedly connected to the surface of the operating box.

[0010] Furthermore, the through-hole assembly includes a drive motor fixedly connected to the surface of the mounting ring and two fixed cylinders fixedly connected inside the operation box. Four drive rods are rotatably connected inside the mounting ring. One end of one of the drive rods is fixedly connected to the output end of the drive motor. The four drive rods are transmitted to each other through a first transmission mechanism. One end of the drive rod is fixedly connected to a drive disk. A transmission bar is rotatably connected to the surface of the drive disk. A sealing plate is hinged to the bottom of the transmission bar.

[0011] Furthermore, a first spring is fixedly connected inside each of the two fixed cylinders, and a lifting cylinder is slidably connected inside each of the two fixed cylinders. One end of the first spring is fixedly connected to one end of the lifting cylinder. A cleaning box is fixedly connected between the two lifting cylinders, and the sealing plate is slidably connected inside the cleaning box.

[0012] Furthermore, the interior of the hole cleaning box is fixedly connected with several partitions, and lifting plates are fixedly connected to both sides of the inner wall of the hole cleaning box.

[0013] Furthermore, the anti-attachment component includes a rotating rod rotatably connected inside the processing box and a fixed rod rotatably connected inside the processing box. A contact wheel is fixedly connected to the surface of the rotating rod, and the fixed rod and the rotating rod are driven by a second transmission mechanism. Half gears are fixedly connected to both ends of the surface of the fixed rod.

[0014] Furthermore, the anti-attachment component also includes a frame toothed plate slidably connected inside the processing box. One end of the frame toothed plate is fixedly connected to an arc-shaped strip. The concave part of the arc-shaped strip contacts the protruding part of the arc-shaped scraper. Arc-shaped baffles are fixedly connected inside the processing box and on both sides of the arc-shaped scraper.

[0015] This invention also provides a method for using a single-screw extruder for preparing styrene-butadiene rubber (SBR), which specifically includes the following steps: Step 1: Pour the raw materials for preparing styrene-butadiene rubber into the inside of the separator through the feed port, and squeeze the raw materials for styrene-butadiene rubber through the squeezing mechanism. Step 2: When it is necessary to treat the rubber residue on the surface of the separation cylinder, start the treatment component to treat the residual rubber on the surface of the separation cylinder. Step 3: When the processing component is operating, the processing component moves the through hole component to the working area, so that the through hole component cleans the rubber inside the opening on the surface of the separation cylinder. Step 4: When it is necessary to prevent the continuous accumulation of residual rubber on the surface of the processing component, when the processing component moves, the processing component drives the anti-adhesion component through the separation cylinder, so that the anti-adhesion component can process the rubber accumulated on the surface.

[0016] (III) Beneficial Effects Compared with the prior art, the present invention provides a single-screw extruder and method for preparing styrene-butadiene rubber, which has the following beneficial effects: 1. The single-screw extruder and method for preparing styrene-butadiene rubber (SBR) utilizes a processing component. The processing cylinder is activated, and the processing cylinder moves the mounting ring via a processing rod. The mounting ring, through an operating box, moves the processing box on the surface of the separation cylinder. As the processing box moves, an arc-shaped scraper inside the processing box scrapes away excess raw material overflowing from the separation cylinder surface, thus preventing the overflowing raw material from adhering to the surface of the separation cylinder and achieving a surface treatment effect.

[0017] 2. The single-screw extruder and method for preparing styrene-butadiene rubber utilizes the combined use of the processing component and the through-hole component. When the processing rod moves the operating box to the designated position via the mounting ring, the drive motor is activated. The drive motor drives the drive disc to rotate via the drive rod, causing the drive disc to lift the sealing plate via the transmission bar. As the sealing plate rises, it extracts the air from inside the clearing box, allowing the cavity formed between the partitions to extract the raw material from the opening of the separation cylinder. This prevents the raw material from clogging the opening on the surface of the separation cylinder, thus achieving the effect of venting the orifice.

[0018] 3. The single-screw extruder and method for preparing styrene-butadiene rubber utilizes a combination of a processing component and an anti-accumulation component. When the operating box moves the processing box, the contact wheel contacts the surface of the separating cylinder. Therefore, when the processing box moves, the contact wheel drives the rotating rod to rotate through the separating cylinder. The rotating rod then drives the fixed rod to rotate through the second transmission mechanism. When the fixed rod rotates, it drives the frame toothed plate to reciprocate through the half-gear. This causes the frame toothed plate to drive the arc-shaped strip to reciprocate on the surface of the arc-shaped scraper, thereby preventing the overflowing raw material from accumulating on the surface of the arc-shaped scraper and affecting subsequent use, thus achieving the effect of preventing accumulation.

[0019] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional schematic diagram of the internal structure of the operating frame of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the processing component of the present invention; Figure 4 This is a three-dimensional structural diagram of the operating box of the present invention; Figure 5 This is a three-dimensional sectional view of the mounting ring of the present invention; Figure 6 This is a cross-sectional perspective view of the three-dimensional structure of the operating box of the present invention; Figure 7 This is a three-dimensional structural diagram of the hole-cleaning box of the present invention; Figure 8 This is a cross-sectional perspective view of the hole-cleaning box and the fixing cylinder of the present invention. Figure 9 This is a schematic diagram of the three-dimensional structure of the drive disk of the present invention; Figure 10 This is a cross-sectional perspective view of the three-dimensional structure of the operating box of the present invention. Figure 11 For the present invention Figure 10 Enlarged schematic diagram of the structure at point A in the middle; Figure 12 This is a three-dimensional schematic diagram of the internal structure of the processing box of the present invention.

[0021] In the diagram: 1. Operating frame; 11. Separating cylinder; 111. Feed inlet; 12. Squeezing mechanism; 121. Squeezing motor; 122. Screw rod; 123. Adjusting cylinder; 124. Adjusting rod; 125. Adjusting cone; 13. Collection box; 131. Liquid pipe; 2. Processing assembly; 21. Processing cylinder; 211. Processing rod; 212. Mounting ring; 22. Operating box; 221. Processing box; 222. Arc scraper; 3. Through-hole assembly; 31. Drive 311. Drive motor; 312. Drive disc; 313. First transmission mechanism; 314. Transmission bar; 315. Sealing plate; 32. Fixed cylinder; 321. First spring; 322. Lifting cylinder; 33. Hole cleaning box; 331. Partition plate; 332. Lifting plate; 4. Anti-attachment assembly; 41. Rotating rod; 411. Contact wheel; 412. Second transmission mechanism; 42. Fixed rod; 421. Half gear; 43. Frame toothed plate; 431. Arc-shaped bar. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] The devices or elements referred to in the embodiments of this application or implied herein must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of this application. In the description of the embodiments of this application, "a plurality of" means two or more, unless otherwise precisely specified.

[0024] For a specific implementation example, please refer to Implementation Example 1. Figures 1 to 2 A single-screw extruder for preparing styrene-butadiene rubber includes: an operating frame 1 and a separating cylinder 11 fixedly connected inside the operating frame 1. The feed inlet 111 is fixedly connected to the top of the separator 11. The surface of the operating frame 1 is provided with a squeezing mechanism 12. The bottom of the operating frame 1 is fixedly connected to a collection box 13. The surface of the collection box 13 is fixedly connected to a liquid pipe 131. The squeezing mechanism 12 includes a squeezing motor 121 fixedly connected to one side of the operating frame 1. The output end of the squeezing motor 121 is fixedly connected to an auger rod 122. The auger rod 122 is located inside the separator 11. The squeezing mechanism 12 also includes an adjusting cylinder 123 fixedly connected to the other side of the operating frame 1. The output end of the adjusting cylinder 123 is differentially connected to an adjusting rod 124. One end of the adjusting rod 124 is fixedly connected to an adjusting cone 125. The processing component 2 is located inside the operating frame 1 and is used to process the rubber residue on the surface of the separation cylinder 11. The processing component 2 includes four operating boxes 22 that are slidably connected inside the operating frame 1. Each of the four operating boxes 22 has a processing box 221 fixedly connected to its surface. An arc-shaped scraper 222 is fixedly connected inside the processing box 221. The through-hole assembly 3 is located inside the operation box 22 and is used to process the rubber inside the opening of the separator 11 to prevent the rubber from clogging the opening and affecting the squeezing effect. Anti-adhesion component 4 is located inside the processing box 221 and is used to collect the rubber on the surface of the processing component 2 so that the rubber does not accumulate in one place; When it is necessary to squeeze the styrene-butadiene rubber raw material, start the regulating cylinder 123. The regulating cylinder 123 drives the regulating cone 125 to move through the regulating rod 124, so that the regulating cone 125 moves towards one end of the separation cylinder 11, and the regulating cone 125 blocks the separation cylinder 11. Then, the styrene-butadiene rubber raw material is poured into the interior of the separation cylinder 11 through the feed port 111. Start the squeezing motor 121. The squeezing motor 121 drives the raw material to move through the auger rod 122, so that the auger rod 122 and the separation cylinder 11 squeeze the raw material. The squeezed liquid flows out through the liquid pipe 131 at the bottom of the collection box 13, while the solid raw material is discharged through one end of the separation cylinder 11. For a specific embodiment two, please refer to Figures 1 to 4Based on the single-screw extruder for preparing styrene-butadiene rubber provided in Specific Embodiment 1, this embodiment provides a further technical solution: The processing assembly 2 also includes a processing cylinder 21 fixedly connected inside the operating frame 1. The output end of the processing cylinder 21 is differentially connected to a processing rod 211. The end of the processing rod 211 away from the processing cylinder 21 is fixedly connected to a mounting ring 212. One end of the mounting ring 212 is fixedly connected to the surface of the operating box 22. It should be noted that the processing cylinder 21 drives the mounting ring 212 to move intermittently via the processing rod 211; When it is necessary to process the raw material overflowing from the surface of the separator 11, the processing cylinder 21 is activated. The processing cylinder 21 drives the mounting ring 212 to move through the processing rod 211. The mounting ring 212 drives the processing box 221 to move on the surface of the separator 11 through the operating box 22. When the processing box 221 moves, the arc-shaped scraper 222 inside the processing box 221 scrapes the surface of the separator 11, so that the arc-shaped scraper 222 scrapes the raw material overflowing from the surface of the separator 11, thereby preventing the overflowing raw material from sticking to the surface of the separator 11. For a specific embodiment three, please refer to Figures 1 to 9 Based on the single-screw extruder for preparing styrene-butadiene rubber provided in Specific Embodiment 2, this embodiment provides a further technical solution: The through-hole assembly 3 includes a drive motor 31 fixedly connected to the surface of the mounting ring 212 and two fixed cylinders 32 fixedly connected inside the operating box 22. Four drive rods 311 are rotatably connected inside the mounting ring 212. One end of one drive rod 311 is fixedly connected to the output end of the drive motor 31. The four drive rods 311 are transmitted to each other via a first transmission mechanism 313. One end of each drive rod 311 is fixedly connected to a drive disk 312. A transmission bar 314 is rotatably connected to the surface of the drive disk 312. A sealing plate 315 is hinged to the bottom of 314. A first spring 321 is fixedly connected inside each of the two fixed cylinders 32. A lifting cylinder 322 is slidably connected inside each of the two fixed cylinders 32. One end of the first spring 321 is fixedly connected to one end of the lifting cylinder 322. A cleaning box 33 is fixedly connected between the two lifting cylinders 322. The sealing plate 315 is slidably connected inside the cleaning box 33. Several partitions 331 are fixedly connected inside the cleaning box 33. Lifting plates 332 are fixedly connected to both sides of the inner wall of the cleaning box 33. It should be noted that the first transmission mechanism 313 includes a first sprocket fixedly connected to the surface of a plurality of drive rods 311, and the plurality of first sprockets are driven by a first chain, and a pressure relief valve is provided on the surface of the sealing plate 315. When the raw material inside the aperture of the separator 11 needs to be processed, when the processing rod 211 moves the operating box 22 to the designated position through the mounting ring 212, the drive motor 31 is started. The drive motor 31 drives the drive disc 312 to rotate through the drive rod 311, so that the drive disc 312 drives the sealing plate 315 to rise through the transmission bar 314. When the sealing plate 315 rises, it draws out the air inside the cleaning box 33, so that the cavity formed between the partitions 331 draws out the raw material inside the aperture of the separator 11, thereby preventing the raw material from blocking the aperture on the surface of the separator 11. When the sealing plate 315 continues to rise, the sealing plate 315 drives the cleaning box 33 to rise through the lifting plate 332, so that the raw material located between the partitions 331 can be moved out from the inside of the cleaning box 33. For a specific implementation example, please refer to Implementation Example 4. Figures 1 to 12 Based on the single-screw extruder for preparing styrene-butadiene rubber provided in Specific Embodiment 3, this embodiment provides a further technical solution: The anti-attachment component 4 includes a rotating rod 41 rotatably connected inside the processing box 221 and a fixed rod 42 rotatably connected inside the processing box 221. A contact wheel 411 is fixedly connected to the surface of the rotating rod 41. The fixed rod 42 and the rotating rod 41 are transmitted through a second transmission mechanism 412. Half gears 421 are fixedly connected to both ends of the surface of the fixed rod 42. The anti-attachment component 4 also includes a frame toothed plate 43 slidably connected inside the processing box 221. An arc-shaped strip 431 is fixedly connected to one end of the frame toothed plate 43. The concave part of the arc-shaped strip 431 contacts the protruding part of the arc-shaped scraper 222. Arc-shaped baffles are fixedly connected inside the processing box 221 and on both sides of the arc-shaped scraper 222. It should be noted that the second transmission mechanism 412 includes a driving sprocket fixedly connected to the surface of the rotating rod 41 and a driven sprocket fixedly connected to the surface of the fixed rod 42. The driving sprocket and the driven sprocket are driven by a second chain. To prevent overflowing raw materials from constantly adhering to the surface of the arc-shaped scraper 222, when the operating box 22 moves the processing box 221, the contact wheel 411 contacts the surface of the separating cylinder 11. Therefore, when the processing box 221 moves, the contact wheel 411 drives the rotating rod 41 to rotate through the separating cylinder 11. The rotating rod 41 drives the fixed rod 42 to rotate through the second transmission mechanism 412. When the fixed rod 42 rotates, it drives the frame toothed plate 43 to reciprocate through the half gear 421. The frame toothed plate 43 drives the arc strip 431 to reciprocate on the surface of the arc-shaped scraper 222. By reciprocating on the surface of the arc-shaped scraper 222, the overflowing raw materials are prevented from constantly accumulating on the surface of the arc-shaped scraper 222 and affecting subsequent use. In a specific embodiment five, the present invention also provides a method for using a single-screw extruder to prepare styrene-butadiene rubber (SBR). This method specifically includes the following steps: Step 1: The raw materials for preparing styrene-butadiene rubber are poured into the interior of the separator 11 through the feed inlet 111, and the raw materials are squeezed dry by the squeezing mechanism 12. Step 2: When it is necessary to treat the rubber residue on the surface of the separation cylinder 11, start the treatment component 2 to treat the residual rubber on the surface of the separation cylinder 11. Step 3: When the processing component 2 is operating, the processing component 2 drives the through hole component 3 to move to the working area, so that the through hole component 3 cleans the rubber inside the opening on the surface of the separation cylinder 11. Step 4: When it is necessary to prevent the continuous accumulation of residual rubber on the surface of the processing component 2, when the processing component 2 moves, the processing component 2 drives the anti-adhesion component 4 through the separation cylinder 11, so that the anti-adhesion component 4 processes the rubber accumulated on the surface.

[0025] Working principle: During use, the regulating cylinder 123 is activated. The regulating cylinder 123, via the regulating rod 124, moves the regulating cone 125 towards one end of the separating cylinder 11, sealing the separating cylinder 11. Then, the styrene-butadiene rubber raw material is poured into the separating cylinder 11 through the feed inlet 111. The squeezing motor 121 is activated, and via the auger rod 122, it moves the raw material, causing the auger rod 122 and the separating cylinder 11 to squeeze the raw material. The squeezed liquid flows out through the liquid pipe 131 at the bottom of the collection box 13, while the solid raw material is discharged through one end of the separating cylinder 11. The surface of the separating cylinder 11 needs to be cleaned. When processing overflowing raw materials, the processing cylinder 21 is activated. The processing cylinder 21 moves the mounting ring 212 via the processing rod 211, causing the mounting ring 212 to move the processing box 221 on the surface of the separation cylinder 11 via the operating box 22. When the processing box 221 moves, the arc-shaped scraper 222 inside the processing box 221 scrapes the surface of the separation cylinder 11, removing the overflowing raw materials and preventing them from sticking to the surface of the separation cylinder 11. When processing the raw materials inside the orifice of the separation cylinder 11 is required, the drive motor is activated when the processing rod 211 moves the operating box 22 to the designated position via the mounting ring 212. 31. The drive motor 31 drives the drive disc 312 to rotate via the drive rod 311, causing the drive disc 312 to drive the sealing plate 315 to rise via the transmission bar 314. As the sealing plate 315 rises, it extracts air from the cleaning box 33, allowing the cavity formed between the partitions 331 to extract the raw material from the orifice of the separating cylinder 11, thus preventing the raw material from clogging the orifice on the surface of the separating cylinder 11. As the sealing plate 315 continues to rise, it drives the cleaning box 33 to rise via the lifting plate 332, allowing the raw material located between the partitions 331 to be removed from the inside of the cleaning box 33. It is necessary to prevent overflowing raw material from constantly adhering to the surface of the arc-shaped scraper 222. When the operating box 22 moves the processing box 221, the contact wheel 411 contacts the surface of the separating cylinder 11. Therefore, when the processing box 221 moves, the contact wheel 411 drives the rotating rod 41 to rotate through the separating cylinder 11. The rotating rod 41 drives the fixed rod 42 to rotate through the second transmission mechanism 412. When the fixed rod 42 rotates, it drives the frame toothed plate 43 to reciprocate through the half gear 421. The frame toothed plate 43 drives the arc strip 431 to reciprocate on the surface of the arc scraper 222. By reciprocating on the surface of the arc scraper 222, the overflowing raw materials are prevented from accumulating on the surface of the arc scraper 222 and affecting subsequent use.

[0026] Any content not described in detail in this specification is prior art known to those skilled in the art.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Parallelism: The parallelism defined in this application is not limited to absolute parallelism. This definition of parallelism can be understood as basic parallelism. It allows for situations where the parallelism is not absolute due to factors such as assembly tolerance, design tolerance, and structural flatness. It also allows for errors within a small angular range, such as within 10 degrees of assembly error. These can all be considered as parallel relationships.

[0029] Perpendicularity: The perpendicularity defined in this application is not limited to an absolute perpendicular intersection (with an included angle of 90 degrees). It is permissible for non-absolute perpendicular intersections caused by factors such as assembly tolerances, design tolerances, and structural flatness. It is permissible for errors within a small angular range, such as an assembly error range of 80 to 100 degrees, which can all be understood as a perpendicular relationship.

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

Claims

1. A single-screw extruder for preparing styrene-butadiene rubber, comprising: The operating frame (1) and the separation cylinder (11) fixedly connected inside the operating frame (1) are characterized in that: The feed inlet (111) is fixedly connected to the top of the separator (11), the surface of the operating frame (1) is provided with a squeezing mechanism (12), the bottom of the operating frame (1) is fixedly connected to a collection box (13), and the surface of the collection box (13) is fixedly connected to a liquid pipe (131). The processing component (2) is located inside the operating frame (1) and is used to process the rubber residue on the surface of the separation cylinder (11). The processing component (2) includes four operating boxes (22) that are slidably connected inside the operating frame (1). Each of the four operating boxes (22) has a processing box (221) fixedly connected to its surface. An arc-shaped scraper (222) is fixedly connected inside the processing box (221). The through-hole assembly (3) is located inside the operation box (22) and is used to process the rubber inside the opening of the separator (11) to prevent the rubber from clogging the opening and affecting the squeezing effect. Anti-adhesion component (4) is disposed inside the processing box (221) to collect the rubber on the surface of the processing component (2) so that the rubber no longer accumulates in one place.

2. The single-screw extruder for preparing styrene-butadiene rubber according to claim 1, characterized in that: The squeezing mechanism (12) includes a squeezing motor (121) fixedly connected to one side of the operating frame (1). The output end of the squeezing motor (121) is fixedly connected to an auger rod (122), which is located inside the separator (11).

3. A single-screw extruder for preparing styrene-butadiene rubber according to claim 2, characterized in that: The squeezing mechanism (12) also includes an adjusting cylinder (123) fixedly connected inside the other side of the operating frame (1). The output end of the adjusting cylinder (123) is differentially connected to an adjusting rod (124), and one end of the adjusting rod (124) is fixedly connected to an adjusting cone (125).

4. A single-screw extruder for preparing styrene-butadiene rubber according to claim 1, characterized in that: The processing assembly (2) also includes a processing cylinder (21) fixedly connected inside the operating frame (1). The output end of the processing cylinder (21) is differentially connected to a processing rod (211). The end of the processing rod (211) away from the processing cylinder (21) is fixedly connected to a mounting ring (212). One end of the mounting ring (212) is fixedly connected to the surface of the operating box (22).

5. A single-screw extruder for preparing styrene-butadiene rubber according to claim 4, characterized in that: The through-hole assembly (3) includes a drive motor (31) fixedly connected to the surface of the mounting ring (212) and two fixed cylinders (32) fixedly connected inside the operation box (22). The mounting ring (212) is rotatably connected to four drive rods (311). One end of one of the drive rods (311) is fixedly connected to the output end of the drive motor (31). The four drive rods (311) are transmitted to each other through a first transmission mechanism (313). One end of the drive rod (311) is fixedly connected to a drive disk (312). A transmission bar (314) is rotatably connected to the surface of the drive disk (312). A sealing plate (315) is hinged to the bottom of the transmission bar (314).

6. A single-screw extruder for preparing styrene-butadiene rubber according to claim 5, characterized in that: A first spring (321) is fixedly connected inside each of the two fixed cylinders (32), and a lifting cylinder (322) is slidably connected inside each of the two fixed cylinders (32). One end of the first spring (321) is fixedly connected to one end of the lifting cylinder (322), and a cleaning box (33) is fixedly connected between the two lifting cylinders (322). The sealing plate (315) is slidably connected inside the cleaning box (33).

7. A single-screw extruder for preparing styrene-butadiene rubber according to claim 6, characterized in that: The cleaning box (33) has several partitions (331) fixedly connected inside, and lifting plates (332) are fixedly connected to both sides of the inner wall of the cleaning box (33).

8. A single-screw extruder for preparing styrene-butadiene rubber according to claim 4, characterized in that: The anti-attachment component (4) includes a rotating rod (41) rotatably connected inside the processing box (221) and a fixed rod (42) rotatably connected inside the processing box (221). A contact wheel (411) is fixedly connected to the surface of the rotating rod (41). The fixed rod (42) and the rotating rod (41) are driven by a second transmission mechanism (412). Half gears (421) are fixedly connected to both ends of the surface of the fixed rod (42).

9. A single-screw extruder for preparing styrene-butadiene rubber according to claim 8, characterized in that: The anti-attachment component (4) also includes a frame toothed plate (43) slidably connected inside the processing box (221). One end of the frame toothed plate (43) is fixedly connected to an arc-shaped strip (431). The recess of the arc-shaped strip (431) contacts the protruding part of the arc-shaped scraper (222). Arc-shaped baffles are fixedly connected inside the processing box (221) and on both sides of the arc-shaped scraper (222).

10. A method of using a single-screw extruder for preparing styrene-butadiene rubber, characterized in that: The method of using the single-screw extruder for preparing styrene-butadiene rubber as described in any one of claims 1-9 specifically includes the following steps: Step 1: Pour the raw materials for preparing styrene-butadiene rubber into the interior of the separator (11) through the feed inlet (111), and squeeze the raw materials of styrene-butadiene rubber through the squeezing mechanism (12); Step 2: When it is necessary to treat the rubber residue on the surface of the separation cylinder (11), start the treatment component (2) to treat the residual rubber on the surface of the separation cylinder (11); Step 3: When the processing component (2) is operating, the processing component (2) drives the through hole component (3) to move to the working area, so that the through hole component (3) cleans the rubber inside the opening on the surface of the separation cylinder (11); Step 4: When it is necessary to prevent the continuous accumulation of residual rubber on the surface of the processing component (2), when the processing component (2) moves, the processing component (2) drives the anti-adhesion component (4) through the separation cylinder (11) so that the anti-adhesion component (4) processes the rubber accumulated on the surface.

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