Preparation process of anti-aging rubber for conveying belt

Abstract

The invention discloses a preparation process of anti-aging rubber for a conveying belt, and belongs to the technical field of rubber preparation. The preparation process of the anti-aging rubber for the conveying belt comprises the following steps: S1, drying; s2, shelling is carried out; s3, squeezing; s4, performing extraction; and S5, desolventizing. The huller comprises a machine box, a hull breaking mechanism and a winnowing mechanism are arranged on the upper portion and the lower portion of the machine box respectively, and the hull breaking mechanism comprises an electric push rod, a lower pressing plate frame and a conveying assembly. According to the process, the phenomenon that rubber, resin, colloid and other substances in the rubber seed cake are extracted to block a sieve plate in a pre-squeezing and leaching preparation process is avoided, residual oil in the meal is reduced, the oil extraction rate of the rubber seeds is improved, meanwhile, the knocking force on the rubber seeds is gradually increased, the rubber seed kernels are prevented from being damaged due to overlarge downward pressure, and the yield of the rubber seeds is improved. The rubber seed shells are adhered to the rubber seed kernels by the flowing-out liquid, so that the finally obtained rubber seed kernels contain the rubber seed shells.

Description

Technical Field

[0001] The invention mainly relates to the technical field of rubber preparation, and in particular to a process for preparing anti-aging rubber for conveyor belts. Background Art

[0002] Conveyor belts are composite products of rubber, fiber, metal, or plastic and fabric used in conveyor belts to carry and transport materials. Rubber is an indispensable part in the preparation of conveyor belts. The production process of rubber includes plasticizing, mixing, calendering, extrusion, molding, vulcanization and other processes. The processing process of rubber is mainly to solve the contradiction between plasticity and elasticity. Through various processing methods, the elastic raw rubber is turned into plasticized rubber with plasticity, and then various compounding agents are added to make semi-finished products. Then, through vulcanization, the semi-finished products with plasticity are turned into rubber products with high elasticity and good physical and mechanical properties.

[0003] In order to increase the service life and use effect of conveyor belts, it is imperative to improve the production quality of rubber. Therefore, softeners must be added in the preparation of rubber. Softeners fill the rubber molecules, increase the distance between molecules, and weaken the interaction between macromolecules. This is manifested in reduced intermolecular forces, enhanced segment activity, lower glass transition temperature, lower viscosity, etc., which increases the plasticity and ductility of rubber and improves processing performance. For example, calendering and extrusion processes are smoother, which helps to improve production efficiency and reduce production costs. At the same time, it is beneficial to improve tensile strength and wear resistance, making rubber anti-aging. ‌‌‌ Rubber seed is the kernel of the rubber tree of the Euphorbiaceae family. The rubber seed oil extracted from rubber seed can be used to prepare rubber softener. Rubber seed oil has good compatibility and affinity with rubber, which can reduce the power consumption during mixing and promote the uniform dispersion of auxiliary materials; the rubber compound with rubber seed oil can improve the process properties of the vulcanized rubber such as elongation and resilience; the right amount of rubber seed oil can soften the rubber compound, so that the surface of the extruded semi-finished product is smooth, the extrusion expansion is small, and the extrusion speed is fast. However, when rubber seed oil is extracted, the rubber seed kernel will be mixed with rubber seed shells when the rubber seeds are shelled, resulting in the final extracted rubber seed oil being impure, which reduces the quality of the rubber when preparing the rubber, and the rubber cannot obtain good anti-aging properties. Summary of the invention

[0004] The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology. Specifically, the present invention mainly provides an anti-aging rubber preparation process for conveyor belts to solve the technical problems raised in the above background technology.

[0005] The technical solution adopted by the present invention to solve the above technical problems is: A process for preparing anti-aging rubber for conveyor belts, comprising: S1. Drying: Dry the rubber seeds to make their moisture content reach 5% to 15%; S2, shelling: the dried rubber seeds are screened by multiple screens, and then the screened rubber seeds are sequentially sent to the shelling machine to obtain rubber seed kernels and rubber seed shells; S3, pressing: heating the rubber seed kernel to 30°C-120°C and then feeding it into a press to obtain crude oil and rubber seed cake, and the crude oil is collected and refined to obtain rubber seed oil; S4, extraction: puffing the rubber seed cake at 80° C.-180° C. to obtain puffed cake, and then extracting the puffed cake to obtain mixed oil; S5. Desolventization: After the mixed oil is evaporated and desolventized under vacuum conditions, rubber seed oil is obtained.

[0006] A shelling machine, suitable for the above-mentioned anti-aging rubber preparation process for conveyor belts, comprising a chassis, wherein a shell crushing mechanism and a winnowing mechanism are respectively provided on the upper and lower parts of the chassis, wherein the shell crushing mechanism comprises an electric component, a lower pressure plate frame and a conveying component; Wherein, a top plate is installed at the lower end of the electric component, a plurality of first oil rods are connected between the top plate and the lower pressure plate frame, a cavity is provided inside the lower pressure plate frame, a slidably mounted pressure control plate and a fixedly mounted impact plate are provided inside the cavity, the pressure control plate and the impact plate are slidably connected, a plurality of extrusion springs are connected between the impact plate and the pressure control plate, a photoelectric sensor is provided at the bottom of the cavity, a second oil rod is connected between the top plate and the impact plate, a plurality of the first oil rods are connected to the second oil rod through a hose, and an initial solenoid valve is provided on the hose; A driving box is installed on the pressure control plate, and a dual-axis motor, a mutually meshing driving gear and a half gear are arranged inside the driving box, and the half gear is installed at the output end of the dual-axis motor. A rotating block is rotatably installed outside the driving box, and the driving gear and the half gear are connected to each other. A third oil rod is installed on one side of the rotating block, and a striking ball is installed on the other end of the third oil rod; A follower box is installed on the upper end of the top plate through a bracket, and a first cavity and a second cavity are provided at the lower end inside the follower box, and the first cavity and the second cavity are both filled with oil. The first cavity and the second cavity are both connected to a final solenoid valve, and the other end of the final solenoid valve connected to the first cavity is connected to a plurality of first oil rods through a hose, and another of the final solenoid valves is connected to a second oil rod through a hose.

[0007] Preferably, the chassis has a built-in central control, and the electric component consists of an electric guide rail and an electric push rod installed on the electric guide rail.

[0008] Preferably, a limit block for limiting the rotation block is provided on the side wall of the driving box, and a contraction spring is built into the third oil rod.

[0009] Preferably, pistons are sliding inside the first cavity and the second cavity, wherein a counterweight is installed on the upper end of the piston sliding inside the first cavity, a rack is installed on the counterweight, the rack is meshed with a follower gear rotatably installed inside the follower box, and the other piston is provided with a first threaded sleeve screw that is threadedly connected to each other, and the follower gear is connected through a threaded sleeve transmission of a bevel gear and the first threaded sleeve screw that meshes with each other.

[0010] Preferably, a third cavity is arranged above the second cavity, and a top plug and a bottom plug are respectively slidably arranged at the upper and lower ends inside the third cavity, the bottom plug is connected to one of the pistons through a connecting rod, the space between the top plug and the bottom plug is filled with oil, the top plug is provided with a second screw sleeve screw which is threadedly connected to each other, a rotating disk is arranged inside the follower box, the rotating disk is transmission connected to the output end of the dual-axis motor through a sprocket chain, and the rotating disk is transmission connected to the screw sleeve of the second screw sleeve screw through mutually meshing gears and mutually meshing bevel gears.

[0011] Preferably, the conveying assembly is composed of a motor, a conveyor belt and a conveyor frame, a fixed plate is arranged inside the conveyor belt, and a laser sensor facing the fixed plate is arranged on the inner wall of the chassis.

[0012] Preferably, a feed port and a discharge port are respectively provided at both ends of the conveying component, a guide plate and a smoothing roller are provided at the feed port, and a discharge inclined plate is provided at the discharge port.

[0013] Preferably, the air selection mechanism includes a fan and a filter.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) This process avoids the phenomenon that rubber, resin, gum and other substances in the rubber seed cake are extracted and clog the screen plate in the pre-pressing and leaching process, reduces the residual oil in the cake and improves the oil yield of rubber seeds.

[0015] (2) When shelling rubber seeds in this process, if the outer shell of the rubber seeds is relatively hard and the striking force cannot break the outer shell of the rubber seeds, the striking force is gradually increased until the striking force is sufficient to crush the outer shell of the rubber seeds. The striking force is gradually increased to avoid excessive downward pressure, which may damage the rubber seed kernel and cause the rubber seed shell to adhere to the rubber seed kernel by the flowing liquid, resulting in the rubber seed kernel containing the rubber seed shell, which makes the extracted rubber seed oil impure. This reduces the quality of the rubber when preparing the rubber and prevents the rubber from obtaining good anti-aging properties. At the same time, after the striking and crushing, the lower pressure plate frame can move downward, and the piston drives the bottom plug downward, so that the space between the top plug and the bottom plug becomes larger, and the oil inside the third oil rod returns to the third cavity, and the third oil rod is restored, ensuring that the striking force received by the next rubber seed also starts from a small amount and gradually increases.

[0016] (3) When the rubber seeds are shelled in the process, the electric guide rail in the electric assembly is started, and the electric guide rail drives the lower pressure plate frame to move back and forth. Since the rubber seeds are squeezed by the lower pressure plate frame, the rubber seeds also keep rolling. At the same time, the double-axis motor makes the half gear rotate, and the half gear first drives the driving gear to rotate, so that the rotating block drives the third oil rod to rotate, and then the half gear and the driving gear are separated, and the third oil rod falls back. The striking ball hits the struck plate, continuously applying high-frequency knocking to the rubber seeds, and the outer shell of the rubber seeds is pulverized by circumferential knocking on the outer shell of the rubber seeds, so that the shelling is more comprehensive and effective shelling can be ensured.

[0017] (4) When the rubber seeds are shelled in this process, the thick rubber seed shells between the lower pressure plate frame and the fixed plate are broken, and the lower pressure plate frame has no contact. Under the push of the extrusion spring, the lower pressure plate frame contacts the rubber seeds with a smaller thickness again. Since the first oil rod is extended as the lower pressure plate frame moves downward, the internal space of the first oil rod becomes larger, and the oil in the first cavity enters the first oil rod. The counterweight block drives the rack to move downward, and the rack moves downward to rotate the follower gear, which drives the screw sleeve of the first screw sleeve to rotate, and the screw of the first screw sleeve is screwed. Pushing the piston inside the second cavity downward allows the oil inside the second cavity to enter the second oil rod, causing the second oil rod to extend accordingly, thereby keeping the degree of contraction of the extrusion spring unchanged, ensuring that each rubber seed is always subjected to a relatively small downward pressure, thus avoiding excessive downward pressure that would damage the rubber seed kernel, causing the outflowing liquid to adhere the rubber seed shell to the rubber seed kernel, resulting in the final rubber seed kernel containing the rubber seed shell, rendering the extracted rubber seed oil impure, causing the rubber quality to decline during rubber preparation, and the rubber unable to obtain good anti-aging properties.

[0018] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the internal structure of the chassis of the present invention; Figure 2 It is a schematic diagram of the partial structure of the shell crushing mechanism of the present invention; Figure 3 It is a schematic diagram of the connection between the first oil rod, the second oil rod and the third oil rod of the present invention; Figure 4 It is a schematic diagram of the internal structure of the follower box of the present invention; Figure 5 It is a schematic diagram of the internal structure of the drive box of the present invention.

[0020] In the figure: 1. Chassis; 10. Electric assembly; 101. Top plate; 102. First oil rod; 103. Second oil rod; 104. Primary solenoid valve; 20. Lower pressure plate frame; 201. Pressure control plate; 202. Impact plate; 203. Extrusion spring; 204. Photoelectric sensor; 30. Drive box; 301. Dual-axis motor; 302. Drive gear; 303. Half gear; 304. Rotating block; 305. Third oil rod; 306. Hitting ball; 307. Limiting block; 40. Conveying assembly; 401. Fixed plate; 402. Material guide plate; 403. Smoothing roller; 404. Unloading inclined plate.

[0021] 50, follower box; 501, first cavity; 502, second cavity; 503, third cavity; 504, counterweight; 505, rack; 506, follower gear; 507, first screw sleeve; 508, top plug; 509, bottom plug; 510, second screw sleeve; 511, rotating disk; 512, final solenoid valve; 513, piston; 2. Central control. DETAILED DESCRIPTION

[0022] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0025] A process for preparing anti-aging rubber for conveyor belts, comprising: S1. Drying: Dry the rubber seeds to make their moisture content reach 5% to 15%; S2, shelling: the dried rubber seeds are screened by multiple screens, and then the screened rubber seeds are sequentially sent to the shelling machine to obtain rubber seed kernels and rubber seed shells; S3, pressing: heating the rubber seed kernel to 30°C-120°C and then feeding it into a press to obtain crude oil and rubber seed cake, and the crude oil is collected and refined to obtain rubber seed oil; S4, extraction: puffing the rubber seed cake at 80° C.-180° C. to obtain puffed cake, and then extracting the puffed cake to obtain mixed oil; S5. Desolventization: After the mixed oil is evaporated and desolventized under vacuum conditions, rubber seed oil is obtained.

[0026] Please refer to the attached Figure 1 A shelling machine is suitable for the anti-aging rubber preparation process for conveyor belts, comprising a chassis 1, wherein the chassis 1 has a built-in central control 2. By setting the central control 2, it is convenient to control the electrical components inside the shelling machine. The control circuit of the central control 2 can be realized by simple programming by technicians in this field, which belongs to the common knowledge in this field. It is only used without modification, so the control method and circuit connection are not described in detail.

[0027] Please refer to the attached Figure 1, the upper and lower parts of the chassis 1 are respectively provided with a shell crushing mechanism and an air separation mechanism, and the shell crushing mechanism includes an electric component 10, a lower pressure plate frame 20 and a conveying component 40. The air separation mechanism includes a fan and a filter. It is an existing mature technology to realize rubber seed kernels and rubber seed shells by wind power, so it will not be described in detail here. The conveying component 40 is composed of a motor, a conveyor belt and a conveyor frame. The conveyor belt conveys materials, which is an existing mature technology, so it will not be described in detail here. A fixed plate 401 is arranged inside the conveyor belt, and the fixed plate 401 is used to support the conveyor belt to avoid the conveyor belt from being unable to provide strong and effective support to the rubber seeds when the lower pressure plate frame 20 is pressed down, resulting in failure of rubber seed shelling; the two ends of the conveying component 40 are respectively provided with a feed port and a discharge port, and a guide plate 402 and a smoothing roller 403 are arranged at the feed port, and a discharge inclined plate 404 is arranged at the discharge port, and the smoothing roller 403 can ensure that there is no rubber seed stacking between the fixed plate 401 and the lower pressure plate frame 20.

[0028] Please refer to the attached Figure 1 - Figure 3 The electric component 10 is composed of an electric guide rail and an electric push rod installed on the electric guide rail. A top plate 101 is installed at the lower end of the electric component 10. A plurality of first oil rods 102 are connected between the top plate 101 and the lower pressure plate frame 20. A cavity is provided inside the lower pressure plate frame 20. A slidably mounted pressure control plate 201 and a fixedly mounted impact plate 202 are provided inside the cavity. The pressure control plate 201 and the impact plate 202 are slidably connected. A plurality of extrusion springs 203 are connected between the impact plate 202 and the pressure control plate 201. A photoelectric sensor 204 is provided at the bottom of the cavity. A second oil rod 103 is connected between the top plate 101 and the impact plate 202. A plurality of the first oil rods 102 are connected to the second oil rod 103 through a hose, and an initial solenoid valve 104 is provided on the hose. Initially, the primary solenoid valve 104 is in the open state; the electric push rod in the electric component 10 is started, causing the lower pressure plate frame 20 to continuously move downward until the lower pressure plate frame 20 presses on the rubber seed. The lower pressure plate frame 20 is subjected to a reaction force, causing the first oil rod 102 to contract, and the oil inside the first oil rod 102 is squeezed into the second oil rod 103, causing the second oil rod 103 to extend. Since the lower pressure plate frame 20 cannot move, the pressure control plate 201 will move downward to squeeze the extrusion spring 203. The photoelectric sensor 204 detects that when the pressure control plate 201 moves down to a certain position, the electric push rod in the electric component 10 stops moving downward, and the primary solenoid valve 104 is closed at the same time; the pressure on the rubber seed continues to increase, and stops when it increases to a smaller level.

[0029] Please refer to the attached Figure 1 - Figure 5A driving box 30 is installed on the pressure control plate 201, and a dual-axis motor 301, a driving gear 302 and a half gear 303 that mesh with each other are arranged inside the driving box 30, and the half gear 303 is installed at the output end of the dual-axis motor 301. A rotating block 304 is rotatably installed outside the driving box 30, and the rotating block 304 is axially connected to the driving gear 302. A third oil rod 305 is installed on one side of the rotating block 304, and a striking ball 306 is installed on the other end of the third oil rod 305; a limit block 307 for limiting the rotating block 304 is arranged on the side wall of the driving box 30, and the third oil rod 305 has a built-in contraction spring.

[0030] The limit block 307 can prevent the third oil rod 305 from rotating too much, so that the third oil rod 305 cannot contact the impact plate 202; because the third oil rod 305 has a built-in contraction spring, the initial state of the third oil rod 305 is contracted. After the rubber seed shell is crushed, the existence of the contraction spring can squeeze the oil inside the third oil rod 305 into the third cavity 503 again. The double-axis motor 301 is started, so that the half gear 303 rotates, and the half gear 303 first drives the driving gear 302 to rotate, so that the rotating block 304 drives the third oil rod 305 to rotate, and then the half gear 303 and the driving gear 302 are separated, the third oil rod 305 falls back, and the striking ball 306 strikes the impact plate 202, continuously applying high-frequency knocking to the rubber seeds. As the third oil rod 305 extends, the height of the striking ball 306 rises each time, and the impact force of the fall also increases, thereby increasing the knocking force on the rubber seeds.

[0031] Please refer to the attached Figure 1 - Figure 5A follower box 50 is installed on the upper end of the top plate 101 through a bracket, and a first cavity 501 and a second cavity 502 are provided at the lower end inside the follower box 50, and the first cavity 501 and the second cavity 502 are both filled with oil, and the first cavity 501 and the second cavity 502 are both connected to a final solenoid valve 512, and the other end of the final solenoid valve 512 connected to the first cavity 501 is connected to a plurality of first oil rods 102 through a hose, and another of the final solenoid valves 512 is connected to a second oil rod 103 through a hose. A piston 513 is slidably mounted inside the first cavity 501 and the second cavity 502, wherein a counterweight 504 is mounted on the upper end of the piston 513 slidably mounted inside the first cavity 501, a rack 505 is mounted on the counterweight 504, the rack 505 is meshed with a follower gear 506 rotatably mounted inside the follower box 50, and a first threaded sleeve screw 507 threadedly connected to each other is provided on the other piston 513, and the follower gear 506 is connected to the first threaded sleeve screw 507 through a threaded sleeve transmission of a bevel gear meshing with each other. A third cavity 503 is arranged above the second cavity 502, and a top plug 508 and a bottom plug 509 are respectively slidably arranged at the upper and lower ends inside the third cavity 503, and the bottom plug 509 is connected to one of the pistons 513 through a connecting rod, and the space between the top plug 508 and the bottom plug 509 is filled with oil, and the top plug 508 is provided with a second threaded sleeve screw 510 that is threadedly connected to each other, and a rotating disk 511 is arranged inside the follower box 50, and the rotating disk 511 is transmission-connected to the output end of the dual-axis motor 301 through a sprocket chain, and the rotating disk 511 is transmission-connected to the thread sleeve of the second threaded sleeve screw 510 through mutually meshing gears and mutually meshing bevel gears, and a laser sensor facing the fixed plate 401 is provided on the inner wall of the chassis 1.

[0032] When the electric push rod in the electric assembly 10 stops moving downward and the initial solenoid valve 104 is closed, the final solenoid valve 512 changes from a closed state to an open state. As the rubber seeds are struck, the outer shell of the thickest rubber seeds breaks, and the lower pressure plate frame 20 is out of contact. Pushed by the extrusion spring 203, the lower pressure plate frame 20 contacts the rubber seeds with smaller thickness again. As the first oil rod 102 is extended as the lower pressure plate frame 20 moves downward, the internal space of the first oil rod 102 becomes larger, and the oil in the first cavity 501 enters the first oil rod 102. The counterweight block 504 drives the rack 505 to move downward, and the rack 505 moves downward to cause the follower gear 506 to rotate, and the follower gear 506 drives the first screw sleeve screw 507 to rotate. The piston 513 in the second cavity 502 moves downward, and the oil in the second cavity 502 enters the second oil rod 103, and the second oil rod 103 is also extended, so that the contraction degree of the extrusion spring 203 does not change, ensuring that each rubber seed is always subjected to a small degree of downward pressure, avoiding excessive downward pressure, resulting in damage to the rubber seed kernel, and the outflowing liquid adheres the rubber seed shell to the rubber seed kernel, resulting in the final rubber seed kernel containing the rubber seed shell, causing the extracted rubber seed oil to be impure, so that when preparing rubber, the rubber quality is reduced, and the rubber cannot obtain good anti-aging performance; when the rubber seed shell is hard, the knocking force cannot break the rubber seed. The shell of the rubber seed is broken. As time goes by, the dual-axis motor 301 drives the rotating disk 511 to rotate through the sprocket chain. The rotating disk 511 drives the sleeve of the second screw sleeve 510 to rotate through the mutually meshing gears and the mutually meshing bevel gears, so that the screw of the second screw sleeve 510 pushes the top plug 508 to move downward. Since the shell of the rubber seed is not crushed, the lower pressure plate frame 20 does not move. Therefore, the oil in the first cavity 501 and the second cavity 502 does not change, and the bottom plug 509 does not move with the piston 513. As the top plug 508 moves downward continuously, the oil in the third cavity 503 is squeezed into the third oil rod 305, so that the third oil rod 305 is extended, so that the knocking force becomes larger, until the knocking The force is enough to crush the shell of the rubber seed, and the knocking force gradually increases, avoiding excessive downward pressure, which causes damage to the rubber seed kernel. The outflowing liquid adheres the rubber seed shell to the rubber seed kernel, resulting in the final rubber seed kernel containing rubber seed shell, causing the extracted rubber seed oil to be impure, resulting in the quality of rubber being reduced during the preparation of rubber, and the rubber cannot obtain good anti-aging properties; at the same time, after the knocking and crushing, the lower pressure plate frame 20 can move downward, and the piston 513 drives the bottom plug 509 to move downward, so that the space between the top plug 508 and the bottom plug 509 becomes larger, and the oil inside the third oil rod 305 returns to the inside of the third cavity 503, and the third oil rod 305 is restored, ensuring that the knocking force received by the next rubber seed also starts from a small point and gradually increases.

[0033] Specific steps: The same batch of rubber seeds are poured onto the guide plate 402, and the rubber seeds continuously fall onto the conveying assembly 40, and then the conveying assembly 40 is started, and the conveying assembly 40 drives the rubber seeds to move, and the rubber seeds are smoothed by the smoothing roller 403, so that the rubber seeds are spread flat between the fixed plate 401 and the lower pressing plate frame 20, and then the conveying assembly 40 is stopped; The electric push rod in the electric component 10 is started, so that the lower pressure plate frame 20 is continuously moved downward until the lower pressure plate frame 20 is pressed on the rubber seed. The lower pressure plate frame 20 is subjected to a reaction force, so that the first oil rod 102 contracts, and the oil inside the first oil rod 102 is squeezed into the second oil rod 103, so that the second oil rod 103 is extended. Since the lower pressure plate frame 20 cannot move, the pressure control plate 201 is moved downward to squeeze the squeezing spring 203. The photoelectric sensor 204 detects that when the pressure control plate 201 moves down to a certain position, the electric push rod in the electric component 10 stops moving downward, and the initial solenoid valve 104 is closed at the same time, so that the pressure on the rubber seed continues to increase, and stops when it increases to a small degree; When the initial electromagnetic valve 104 is closed, the final electromagnetic valve 512 changes from a closed state to an open state, the dual-axis motor 301 is started, and the electric guide rail in the electric assembly 10 is started, and the electric guide rail drives the lower pressure plate frame 20 to move back and forth. Since the rubber seeds are squeezed by the lower pressure plate frame 20, the rubber seeds also keep rolling. At the same time, the dual-axis motor 301 makes the half gear 303 rotate, and the half gear 303 first drives the driving gear 302 to rotate, so that the rotating block 304 drives the third oil rod 305 to rotate, and then the half gear 303 and the driving gear 302 are separated, and the third oil rod 305 falls back, and the striking ball 306 strikes the struck plate 202, continuously applying high-frequency knocking to the rubber seeds, and the rubber seed shell is crushed by surrounding the knocking of the rubber seed shell; The outer shell of the thick rubber seed is broken, and the lower pressure plate frame 20 has no contact. Under the push of the extrusion spring 203, the lower pressure plate frame 20 contacts the rubber seed with a smaller thickness again. Since the first oil rod 102 is extended as the lower pressure plate frame 20 moves downward, the internal space of the first oil rod 102 becomes larger, and the oil in the first cavity 501 enters the first oil rod 102. The counterweight block 504 drives the rack 505 to move downward, and the rack 505 moves downward to rotate the follower gear 506. The follower gear 506 drives the sleeve of the first screw sleeve screw 507 to rotate, and the screw of the first screw sleeve screw 507 is pushed. The piston 513 in the second cavity 502 is moved downward, so that the oil in the second cavity 502 enters the second oil rod 103, and the second oil rod 103 is also extended, so that the contraction degree of the extrusion spring 203 does not change, ensuring that each rubber seed is always subjected to a small degree of downward pressure, avoiding excessive downward pressure, resulting in damage to the rubber seed kernel, and the outflowing liquid adheres the rubber seed shell to the rubber seed kernel, resulting in the final rubber seed kernel containing the rubber seed shell, resulting in the extracted rubber seed oil being impure, so that when preparing rubber, the rubber quality is reduced, and the rubber cannot obtain good anti-aging performance; If the shell of the rubber seed is hard, the impact force cannot break the rubber seed shell. As time goes by, the dual-axis motor 301 drives the rotating disk 511 to rotate through the sprocket chain. The rotating disk 511 drives the sleeve of the second screw sleeve screw 510 to rotate through the mutually meshing gears and the mutually meshing bevel gears, so that the screw of the second screw sleeve screw 510 pushes the top plug 508 to move downward. Since the shell of the rubber seed is not crushed, the lower pressure plate frame 20 does not move. Therefore, the oil in the first cavity 501 and the second cavity 502 does not change, and the bottom plug 509 does not move with the piston 513. As the top plug 508 continues to move downward, the oil in the third cavity 503 is squeezed into the third oil rod 305, causing the third oil rod 305 to extend, allowing The knocking force becomes larger until it is enough to crush the shell of the rubber seed. The knocking force is gradually increased to avoid excessive downward pressure, which may damage the rubber seed kernel. The outflowing liquid will adhere the rubber seed shell to the rubber seed kernel, resulting in the final rubber seed kernel containing the rubber seed shell, causing the extracted rubber seed oil to be impure, resulting in the quality of rubber being reduced during the preparation of rubber, and the rubber cannot obtain good anti-aging properties. At the same time, after the knocking and crushing, the lower pressure plate frame 20 can move downward, and the piston 513 drives the bottom plug 509 to move downward, so that the space between the top plug 508 and the bottom plug 509 becomes larger, and the oil in the third oil rod 305 returns to the third cavity 503, and the third oil rod 305 is restored, ensuring that the knocking force on the next rubber seed also starts from a small point and gradually increases. When the laser sensor detects that the distance between the lower pressure plate frame 20 and the fixed plate 401 reaches a certain level, the electric push rod in the electric component 10 is started, causing the lower pressure plate frame 20 to move upward, and at the same time starting the conveying component 40. The conveying component 40 drives the rubber seed kernels and rubber seed shells to move and fall into the air separation mechanism, and the rubber seed kernels and rubber seed shells are separated by the fan and the filter.

[0034] The above is an exemplary description of the present invention in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made by adopting the method concept and technical solution of the present invention, or the concept and technical solution of the present invention are directly applied to other occasions without improvement, they are all within the protection scope of the present invention.

Claims

1. A process for preparing anti-aging rubber for conveyor belts, characterized in that: include: S1. Drying: Dry the rubber seeds to make their moisture content reach 5% to 15%; S2, shelling: the dried rubber seeds are screened by multiple screens, and then the screened rubber seeds are sequentially sent to the shelling machine to obtain rubber seed kernels and rubber seed shells; S3, pressing: heating the rubber seed kernel to 30°C-120°C and then feeding it into a press to obtain crude oil and rubber seed cake, and the crude oil is collected and refined to obtain rubber seed oil; S4, extraction: puffing the rubber seed cake at 80° C.-180° C. to obtain puffed cake, and then extracting the puffed cake to obtain mixed oil; S5. Desolventization: After the mixed oil is evaporated and desolventized under vacuum conditions, rubber seed oil is obtained.

2. A shelling machine, suitable for the process for preparing anti-aging rubber for conveyor belts according to claim 1, comprising a housing (1), characterized in that: The casing (1) is provided with a shell crushing mechanism and a wind selection mechanism at the top and bottom, respectively. The shell crushing mechanism comprises an electric component (10), a lower pressure plate frame (20) and a conveying component (40); Wherein, a top plate (101) is installed at the lower end of the electric component (10), a plurality of first oil rods (102) are connected between the top plate (101) and the lower pressure plate frame (20), a cavity is provided inside the lower pressure plate frame (20), a slidably mounted pressure control plate (201) and a fixedly mounted impact plate (202) are provided inside the cavity, the pressure control plate (201) and the impact plate (202) are slidably connected, a plurality of extrusion springs (203) are connected between the impact plate (202) and the pressure control plate (201), a photoelectric sensor (204) is provided at the bottom of the cavity, a second oil rod (103) is connected between the top plate (101) and the impact plate (202), a plurality of the first oil rods (102) are connected to the second oil rod (103) through a hose, and an initial solenoid valve (104) is provided on the hose; A drive box (30) is mounted on the pressure control plate (201), wherein a dual-axis motor (301), a driving gear (302) and a half gear (303) meshing with each other are arranged inside the drive box (30), wherein the half gear (303) is mounted at the output end of the dual-axis motor (301), and a rotating block (304) is rotatably mounted outside the drive box (30), wherein the driving gear (302) and the half gear (303) are axially connected, and a third oil rod (305) is mounted on one side of the rotating block (304), and a striking ball (306) is mounted on the other end of the third oil rod (305); A follower box (50) is mounted on the upper end of the top plate (101) via a bracket, a first cavity (501) and a second cavity (502) are provided at the lower end of the follower box (50), and the first cavity (501) and the second cavity (502) are both filled with oil, the first cavity (501) and the second cavity (502) are both connected to a final solenoid valve (512), the other end of the final solenoid valve (512) connected to the first cavity (501) is connected to a plurality of first oil rods (102) via a hose, and another of the final solenoid valves (512) is connected to a second oil rod (103) via a hose.

3. A shelling machine according to claim 2, characterized in that: The chassis (1) has a built-in central control (2), and the electric component (10) is composed of an electric guide rail and an electric push rod installed on the electric guide rail.

4. A shelling machine according to claim 2, characterized in that: A limiting block (307) for limiting the position of the rotating block (304) is arranged on the side wall of the driving box (30), and a contraction spring is built into the third oil rod (305).

5. A shelling machine according to claim 2, characterized in that: A piston (513) is slidably mounted inside the first cavity (501) and the second cavity (502), wherein a counterweight (504) is mounted on the upper end of the piston (513) slidably mounted inside the first cavity (501), wherein a rack (505) is mounted on the counterweight (504), wherein the rack (505) meshes with a follower gear (506) rotatably mounted inside the follower box (50), and a first screw sleeve screw (507) threadably connected to each other is disposed on the other piston (513), wherein the follower gear (506) is connected to the first screw sleeve screw (507) through a screw sleeve transmission of a bevel gear meshing with each other.

6. A shelling machine according to claim 2, characterized in that: A third cavity (503) is arranged above the second cavity (502), and a top plug (508) and a bottom plug (509) are slidably arranged at the upper and lower ends of the third cavity (503), respectively; the bottom plug (509) is connected to one of the pistons (513) via a connecting rod; oil is filled between the top plug (508) and the bottom plug (509); the top plug (508) is provided with a second screw sleeve screw (510) which is threadedly connected to each other; a rotating disk (511) is arranged inside the follower case (50), and the rotating disk (511) is transmission-connected to the output end of the dual-axis motor (301) via a sprocket chain; the rotating disk (511) is transmission-connected to the screw sleeve of the second screw sleeve screw (510) via mutually meshing gears and mutually meshing bevel gears.

7. A shelling machine according to claim 2, characterized in that: The conveying assembly (40) is composed of a motor, a conveying belt and a conveying frame; a fixing plate (401) is arranged inside the conveying belt; and a laser sensor facing the fixing plate (401) is arranged on the inner side wall of the chassis (1).

8. A shelling machine according to claim 2, characterized in that: The conveying assembly (40) is provided with a feed inlet and a feed outlet at both ends, respectively; a guide plate (402) and a smoothing roller (403) are provided at the feed inlet, and a feed outlet inclined plate (404) is provided at the feed outlet.

9. A shelling machine according to claim 2, characterized in that: The wind selection mechanism comprises a fan and a filter.

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