Latex and preparation device and method thereof

Abstract

The invention provides latex and a preparation device and method thereof, and belongs to the technical field of latex, the latex comprises the following material components by weight: 100 parts of natural latex, 20-30 parts of fluororubber, 0.5-2 parts of an antioxidant, 0.2-0.6 part of an anti-aging agent, 3-7 parts of sulfur, 1-3 parts of a plasticizer, 1-2 parts of a stabilizer, 0.2-0.5 part of casein, and 0.5-1.5 parts of a surfactant. The obtained latex product has good anti-aging performance, wettability and chemical stability, the latex product obtained in conclusion is durable and longer in service life, the latex carrying impurities is filtered twice in the scheme, the impurities in the latex are mainly reduced, the latex filtered twice is treated uniformly, the purity and stability of the latex are ensured, and the service life of the latex product is prolonged. The quality and the performance of the latex are improved.

Description

Technical Field

[0001] The invention belongs to the technical field of latex, and in particular relates to latex and a preparation device and method thereof. Background Art

[0002] Latex is a special colloidal system, which is composed of rubber hydrocarbons (latex particles), water and other small amounts of non-rubber components such as proteins, lipids, inorganic substances, etc. In this emulsion of microparticle polymer mixture, the content of rubber hydrocarbons is about 20% to 40%. Latex has many excellent physical and chemical properties. For example, it has good film-forming properties and can be vulcanized at low temperatures; the products made have excellent resilience and tensile strength, as well as good insulation and wear resistance.

[0003] The prior art discloses a Chinese patent with application number CN201710179292.3, which discloses a latex and a method for preparing a latex product using the latex. The key points of its technical solution are: a latex, comprising the following components in parts by weight: 100 parts of natural latex, 10-50 parts of fluororubber, 0.1-1 parts of an antioxidant, 4-8 parts of sulfur, 2-4 parts of a vulcanizing activator, 0.5-3 parts of a vulcanizing accelerator EYU (Na-22), 0.5-3 parts of a stabilizer KOH, 0.5-1 parts of casein, 0.5-2 parts of a dispersant NNO, and 0.5-2 parts of a surfactant. The latex described in the present invention has good anti-aging properties, wetting properties, and chemical stability, and the latex products made using the latex are durable and have a longer service life.

[0004] The preparation of latex requires the steps of mixing, polymerization, filtering, and washing. In the latex that undergoes polymerization during mixing, latex is prone to bonding to produce blocky impurities. The impurities adhere to the inner wall of the reactor, reducing production quality and being difficult to clean. For the subsequent filtering step, the filter screen is more likely to be clogged, reducing production efficiency. For this reason, we propose a latex and a preparation device and method thereof. Summary of the invention

[0005] The object of the present invention is to provide a latex and a preparation device and method thereof, aiming to solve the problems in the prior art.

[0006] To achieve the above object, the present invention provides the following technical solutions: A latex comprises the following material components in parts by weight: 100 parts of natural latex, 20-30 parts of fluororubber, 0.5-2 parts of antioxidant, 0.2-0.6 parts of anti-aging agent, 3-7 parts of sulfur, 1-3 parts of plasticizer, 1-2 parts of stabilizer, 0.2-0.5 parts of casein and 0.5-1.5 parts of surfactant.

[0007] A latex preparation device comprises: A reaction kettle, which has a feed inlet on its side and a discharge port on its bottom, and has an interlayer and a main chamber inside. The main chamber is provided with a mixing mechanism, and the materials are mixed by the mixing mechanism to obtain a latex liquid; A heating box, which stores heat exchange fluid inside and is used to pass the heat exchange fluid into the interlayer to provide a heating environment; The filter chamber has a buffer cavity on the top and a first liquid outlet on the bottom. The latex liquid is pumped into the filter chamber, and an extrusion mechanism is arranged inside the filter chamber to squeeze the latex liquid and crush the impurities therein. The conveying bin is fixedly connected to the side of the filtering bin at an angle and extends outwards. The part of the conveying bin located inside the filtering bin is provided with filtering holes. The part of the conveying bin located outside the filtering bin is provided with a fourth pipe. Part of the latex liquid flows downward through the filtering holes. A conveying mechanism is provided inside the conveying bin to convey the rest of the latex liquid carrying impurities. A filter tank, which has a slag inlet on its side fixedly connected to the fourth pipeline, a filter bucket fixedly connected inside, a second liquid outlet at its bottom, and a stirring mechanism inside to perform secondary filtration on the remaining latex liquid containing impurities; and The main discharge pipe is fixedly connected to the lower ends of the first liquid outlet and the second liquid outlet to collect the filtered latex liquid.

[0008] As a preferred solution of the present invention, the mixing mechanism includes a stirring rod, an axis rod and a first motor, the stirring rod is rotatably connected to the upper inner wall of the main chamber, the axis rod is fixedly connected to the circumferential surface of the stirring rod, the first motor is located on the upper side of the reactor, the stirring rod is fixedly connected to the output end of the first motor, the top of the reactor is fixedly connected to a first electric push rod, the extended end of the first electric push rod is fixedly connected to a support plate, the first motor is fixedly connected to the top of the support plate, and the circumferential surface of the stirring rod is fixedly connected to a scraper.

[0009] As a preferred solution of the present invention, a third pipeline is fixedly connected between the discharge port and the buffer chamber, and a second liquid pump is installed on the third pipeline.

[0010] As a preferred solution of the present invention, the heating box output port is fixedly connected to a first liquid pump, a first pipeline is fixedly connected between the first liquid pump and the interlayer, and a second pipeline is fixedly connected between the reflux port of the heating box and the main chamber.

[0011] As a preferred solution of the present invention, the extrusion mechanism includes a second motor and two extrusion wheels, the second motor is fixedly connected to the side of the filter bin, the two extrusion wheels are rotatably connected between the inner walls of the filter bin, the extrusion wheels are located on the lower side of the buffer cavity, the output end of the second motor is fixedly connected to one of the extrusion wheels, and one end of the axis of the two extrusion wheels is fixedly connected to a spur gear and meshes with each other.

[0012] As a preferred solution of the present invention, the conveying mechanism includes a third motor and a screw conveyor, the third motor is fixedly connected to the end of the conveying bin, the screw conveyor is rotatably connected in the conveying bin, and the output end of the third motor is fixedly connected to the screw conveyor.

[0013] As a preferred solution of the present invention, the stirring mechanism includes a fourth motor, an agitator and a top cover, the top cover is detachably arranged on the top of the filter tank, the fourth motor is fixedly connected to the top of the top cover, and the agitator is fixedly connected to the output end of the fourth motor.

[0014] As a preferred solution of the present invention, a slide groove is fixedly connected to the side of the filter bin, a piston is slidably connected in the slide groove, a second electric push rod is fixedly connected to the end of the slide groove, and the piston is fixedly connected to the extended end of the second electric push rod.

[0015] A method for preparing latex comprises the following steps: S1, natural latex and fluororubber are added into the reactor, then the mixing mechanism is controlled to stir for 10-15 minutes, and the circulating heat exchange fluid enters the interlayer, the temperature is adjusted and maintained at 60-70 degrees Celsius, then the temperature is lowered by 40-50 degrees Celsius, and 0.5-1.5 parts of antioxidant, anti-aging agent and surfactant are added, and stirring is continued for 5-10 minutes, and finally the temperature is lowered to 40-50 degrees Celsius, sulfur, plasticizer, casein and stabilizer are added, and stirring is performed for 10-15 minutes to obtain latex liquid; S2, open the valve on the discharge port, control the second liquid pump to pump the latex liquid into the buffer chamber, control the output end of the second motor to drive the extrusion wheel to rotate, and crush the block impurities bonded in the latex liquid through the extrusion wheel to reduce the volume of the impurities; S3, the latex liquid falls into the conveying bin, is initially filtered through the filter holes, and part of the filtered latex liquid flows into the main discharge pipe from the first liquid outlet, and the rest of the latex liquid carrying impurities enters the filter tank through the fourth pipeline under the conveyance of the screw conveyor; S4, controlling the fourth motor to drive the stirrer to rotate, continuously stirring the latex liquid carrying impurities, filtering it twice through the filter bucket, and the latex liquid remaining in the filter bucket flows into the main discharge pipe through the second liquid outlet; S5. After the mixing is completed in the reactor, the extended end of the first electric push rod is controlled to move downward, driving the scraper to move downward with the stirring rod, so that the scraper fits the inner wall of the main chamber, and then the first motor is controlled to drive the stirring rod to rotate, so that the scraper scrapes the inner wall of the main chamber to automatically clean up the latex residue; S6. After the filtration in the filter tank is completed, open the top cover, take out the filter bucket, and clean the impurities remaining in the filter bucket.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In this scheme, when the latex liquid flows between the extrusion wheel, the bonded block impurities are crushed to reduce the impurities in the latex and reduce the possibility of blockage in the subsequent process. The conveying bin is installed obliquely in the filter bin, one end of which extends to the outside of the filter bin. The part located in the filter bin is a semi-arc structure. The latex liquid passes through the filter hole and then, under the conveyance of the screw conveyor, the latex liquid carrying impurities enters the filter tank from the third pipe and is filtered twice through the filter bucket. This scheme filters the latex carrying impurities for the second time, mainly to reduce the impurities in the latex. The latex filtered twice is treated uniformly to ensure the purity and stability of the latex and improve the quality and performance of the latex.

[0017] 2. The latex products obtained in this scheme have good anti-aging properties, wetting properties and chemical stability. In summary, the latex products obtained are durable and have a longer service life.

[0018] 3. This solution uses the extended end of the first electric push rod to push the support plate up and down, and the height of the stirring rod can be adjusted. The lifting of the shaft rod can stir latex liquids of different depths to improve the mixing effect. When the scraper descends, it can fit the inner wall of the main chamber, and then continuously scrape off the residue on the inner wall of the main chamber to prevent impurities from adhering to the inner wall of the main chamber, which is beneficial to subsequent cleaning work.

[0019] 4. In this solution, the heat exchange liquid is pumped into the interlayer through the first pipe by the first liquid pump, and then returned to the heating box through the second pipe. When the heat exchange liquid circulates, the working temperature of the main chamber is adjusted to ensure that the latex liquid obtains an accurate working temperature and improve the mixing quality.

[0020] 5. This solution drives the slideway to move back and forth through the extended end of the second electric push rod, which can frequently change the internal pressure of the filter bin, thereby playing a role in dredging and effectively solving the blockage problem without manual operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0022] In the attached picture: Figure 1 A perspective view of the present invention; Figure 2 It is an overall cross-sectional view of the present invention; Figure 3 This is a structural diagram of the connection between the reactor and the heating box of the present invention; Figure 4 It is a structural diagram of the hybrid mechanism of the present invention; Figure 5 It is an exploded view of the first motor of the present invention; Figure 6 It is a first cross-sectional view of the filter bin of the present invention; Figure 7 It is a second cross-sectional view of the filter bin of the present invention; Figure 8 It is a cross-sectional view of the filter tank of the present invention; Fig. 9 It is an exploded view of the filter tank of the present invention.

[0023] Description of the numbers in the figure: 1. Reactor; 101. Feed inlet; 102. Discharge outlet; 103. Interlayer; 104. Main chamber; 2. stirring rod; 201. shaft rod; 202. scraper; 3. Support plate; 301. First motor; 302. First electric push rod; 4. Heating box; 401. First liquid pump; 402. First pipeline; 403. Second pipeline; 5. Filter chamber; 501. Buffer chamber; 502. First liquid outlet; 6. second liquid pump; 601. third pipeline; 7. Second motor; 701. Extrusion wheel; 702. Spur gear; 8. Delivery bin; 801. Filter hole; 802. Fourth pipeline; 9. The third motor; 901. The screw conveyor; 10. Filter tank; 1001. Slag inlet; 1002. Second liquid outlet; 1003. Top cover; 11. Filter bucket; 1101. Agitator; 12. The fourth motor; 13. Main discharge pipe; 14. Chute; 15. Second electric push rod; 16. Piston. DETAILED DESCRIPTION

[0024] 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. Example

[0025] See also Figure 1-Figure 9 , the technical solution provided by this embodiment is as follows: A latex comprises the following material components in parts by weight: 100 parts of natural latex, 20-30 parts of fluororubber, 0.5-2 parts of antioxidant, 0.2-0.6 parts of anti-aging agent, 3-7 parts of sulfur, 1-3 parts of plasticizer, 1-2 parts of stabilizer, 0.2-0.5 parts of casein and 0.5-1.5 parts of surfactant.

[0026] In a specific embodiment of the present invention, fluororubber is a high-performance synthetic polymer elastomer. Its unique properties come from the introduction of fluorine atoms in its molecular structure. The presence of these fluorine atoms gives fluororubber a series of excellent properties, such as high temperature resistance, oxidation resistance, oil resistance, corrosion resistance and atmospheric aging resistance. The antioxidant is sodium fluorosilicate SSF, which can stabilize the structure of the latex, solidify the shape of the processed product, reduce or eliminate its fluidity, and increase the solid content. The antioxidant is Wingstay-LWS-L, WL, which is a substance generated by the butylation reaction of p-cresol and dicyclopentadiene. Sulfur is used as a vulcanizing agent and is used in combination with other additives to make A cross-linked structure is formed between rubber molecules, thereby changing the properties of rubber and improving its strength and wear resistance. The surfactant is sodium alkyl sulfate, which is a special type of chemical. They have a unique molecular structure and are usually composed of a hydrophilic group and a hydrophobic group, which enables them to reduce the interfacial tension between liquids, thereby playing a key role in a variety of applications such as washing, emulsification, and foaming. The stabilizer is alkylphenol polyoxyethylene ether, an additive used to improve the performance of latex products. It can improve the stability of latex and prevent latex from stratification, precipitation or gelation during storage or use. Casein is mainly used to improve the stability, adhesion and anti-aging properties of latex. Casein, also known as casein or casein, is a natural protein extracted from milk. It mainly plays the role of a compounding agent in the latex industry. The latex products obtained by the present invention have good anti-aging properties, wetting properties and chemical stability. In summary, the latex products obtained are durable and have a longer service life.

[0027] Specifically, a latex preparation device comprises: The reactor 1 has a feed inlet 101 on its side and a discharge port 102 at its bottom. An interlayer 103 and a main chamber 104 are arranged inside the reactor. A mixing mechanism is arranged in the main chamber 104. The materials are mixed by the mixing mechanism to obtain a latex liquid. The heating box 4 stores heat exchange liquid inside, and is used to pass the heat exchange liquid into the interlayer 103, thereby providing a heating environment; The filter chamber 5 has a buffer chamber 501 at the top and a first liquid outlet 502 at the bottom. The latex liquid is pumped into the filter chamber 5, and an extrusion mechanism is provided inside the filter chamber 5 to squeeze the latex liquid and crush the impurities therein. The conveying bin 8 is fixedly connected to the side of the filtering bin 5 at an angle and extends outwards. The part of the conveying bin 8 located inside the filtering bin 5 is provided with a filtering hole 801, and the part of the conveying bin 8 located outside the filtering bin 5 is provided with a fourth pipe 802. Part of the latex liquid flows downward through the filtering hole 801, and a conveying mechanism is provided inside the conveying bin to convey the rest of the latex liquid carrying impurities. The filter tank 10 has a slag inlet 1001 on its side fixedly connected to the fourth pipe 802, a filter bucket 11 fixedly connected inside, a second liquid outlet 1002 at its bottom, and a stirring mechanism inside to perform secondary filtration on the remaining latex liquid with impurities; and The main discharge pipe 13 is fixedly connected to the lower ends of the first liquid outlet 502 and the second liquid outlet 1002 to collect the filtered latex liquid.

[0028] In a specific embodiment of the present invention, the reactor 1 is used to stir and mix materials. The feed port 101 and the discharge port 102 are both connected to the main chamber 104. Natural latex, fluororubber and other materials are added to the main chamber 104 through the feed port 101. The materials are stirred by the mixing mechanism to obtain latex liquid. The interlayer 103 is located around the main chamber 104 and is used to circulate the heat exchange liquid. The heating box 4 is used to control the temperature of the heat exchange liquid. The heat exchange liquid enters the main chamber 104 to exchange heat with the reactor 1 to ensure that the temperature conditions for material mixing are met and the mixing quality is improved. After the mixing is completed, it is pumped into the buffer chamber 501 through the second liquid pump 6. The extrusion wheel 701 is located on the lower side of the buffer chamber 501. The latex liquid flows and is extruded. When the wheels 701 are between each other, the sticky block impurities are crushed to reduce the impurities in the latex and reduce the possibility of blockage in the subsequent process. The conveying bin 8 is installed obliquely in the filter bin 5, one end of which extends to the outside of the filter bin 5. The part located in the filter bin 5 is a semi-arc structure. The latex liquid passes through the filter hole 801 for filtering, and then under the transportation of the screw conveyor 901, the latex liquid carrying impurities enters the filter tank 10 from the fourth pipe 802, and is filtered twice through the filter bucket 11. This scheme filters the latex carrying impurities for the second time, mainly to reduce the impurities in the latex. The latex filtered twice is treated uniformly to ensure the purity and stability of the latex and improve the quality and performance of the latex.

[0029] Specifically, the mixing mechanism includes a stirring rod 2, an axis rod 201 and a first motor 301. The stirring rod 2 is rotatably connected to the upper inner wall of the main chamber 104, the axis rod 201 is fixedly connected to the circumferential surface of the stirring rod 2, the first motor 301 is located on the upper side of the reactor 1, the stirring rod 2 is fixedly connected to the output end of the first motor 301, the top of the reactor 1 is fixedly connected to a first electric push rod 302, the extended end of the first electric push rod 302 is fixedly connected to a support plate 3, the first motor 301 is fixedly connected to the top of the support plate 3, and the circumferential surface of the stirring rod 2 is fixedly connected to a scraper 202.

[0030] In a specific embodiment of the present invention, the stirring rod 2 is used to support the shaft 201 and the scraper 202 to rotate. The stirring rod 2 is driven to rotate by the output end of the first motor 301, and then the shaft 201 and the scraper 202 are driven to rotate synchronously, and then the mixed flow is stirred at high speed to obtain a latex liquid. The support plate 3 is used to support the first motor 301. The support plate 3 is pushed up and down by the extended end of the first electric push rod 302. The height of the stirring rod 2 can be adjusted. The lifting and lowering of the shaft 201 can stir latex liquids of different depths to improve the mixing effect. When the scraper 202 descends, it can fit the inner wall of the main chamber 104, and then continuously scrape off the residue on the inner wall of the main chamber 104 to prevent impurities from adhering to the inner wall of the main chamber 104, which is beneficial to subsequent cleaning work.

[0031] Specifically, a third pipeline 601 is fixedly connected between the discharge port 102 and the buffer chamber 501 , and a second liquid pump 6 is installed on the third pipeline 601 .

[0032] In a specific embodiment of the present invention, a valve is installed on the discharge port 102 . After the valve is opened, the second liquid pump 6 is started to pump the latex liquid into the buffer chamber 501 through the second liquid pump 6 .

[0033] Specifically, the output port of the heating box 4 is fixedly connected to a first liquid pump 401 , a first pipe 402 is fixedly connected between the first liquid pump 401 and the interlayer 103 , and a second pipe 403 is fixedly connected between the reflux port of the heating box 4 and the main chamber 104 .

[0034] In a specific embodiment of the present invention, heat exchange liquid is stored in the heating box 4 for adjusting the temperature of the heat exchange liquid. The heat exchange liquid is pumped into the interlayer 103 through the first pipe 402 via the first liquid pump 401, and then returns to the heating box 4 through the second pipe 403. When the heat exchange liquid circulates, the working temperature of the main chamber 104 is adjusted to ensure that the latex liquid obtains an accurate working temperature and improve the mixing quality.

[0035] Specifically, the extrusion mechanism includes a second motor 7 and two extrusion wheels 701. The second motor 7 is fixedly connected to the side of the filter bin 5. The two extrusion wheels 701 are rotatably connected between the inner walls of the filter bin 5. The extrusion wheels 701 are located on the lower side of the buffer chamber 501. The output end of the second motor 7 is fixedly connected to one of the extrusion wheels 701. One end of the axis of the two extrusion wheels 701 is fixedly connected to a spur gear 702 and meshes with each other.

[0036] In a specific embodiment of the present invention, the gap between the two extrusion wheels 701 is small, and the output end of the second motor 7 is controlled to drive the extrusion wheels 701 to rotate. Under the action of the mutual engagement of the spur gears 702, the two extrusion wheels 701 rotate synchronously in opposite directions. When the latex liquid passes through the gap between the extrusion wheels 701, impurities in the latex liquid can be crushed, reducing the possibility of blockage in subsequent processes.

[0037] Specifically, the conveying mechanism includes a third motor 9 and a screw conveyor 901 . The third motor 9 is fixedly connected to the end of the conveying bin 8 . The screw conveyor 901 is rotatably connected to the conveying bin 8 . The output end of the third motor 9 is fixedly connected to the screw conveyor 901 .

[0038] In a specific embodiment of the present invention, when the latex liquid is in the conveying bin 8 , the screw conveyor 901 is driven to rotate by the output end of the third motor 9 , so that part of the latex liquid can be conveyed into the fourth pipe 802 .

[0039] Specifically, the stirring mechanism includes a fourth motor 12, an agitator 1101 and a top cover 1003, the top cover 1003 is detachably arranged on the top of the filter tank 10, the fourth motor 12 is fixedly connected to the top of the top cover 1003, and the agitator 1101 is fixedly connected to the output end of the fourth motor 12.

[0040] In a specific embodiment of the present invention, latex liquid carrying impurities enters the filter bucket 11, and the output end of the fourth motor 12 drives the agitator 1101 to rotate at a high speed. The agitator 1101 is close to the bottom of the filter bucket 11, which can speed up the filtration efficiency of the latex liquid and prevent the latex liquid from solidifying. Impurities remain in the filter bucket 11, and the latex liquid carrying impurities is subjected to secondary filtration.

[0041] Specifically, a slide groove 14 is fixedly connected to the side of the filter bin 5 , a piston 16 is slidably connected in the slide groove 14 , a second electric push rod 15 is fixedly connected to the end of the slide groove 14 , and the piston 16 is fixedly connected to the extended end of the second electric push rod 15 .

[0042] In a specific embodiment of the present invention, the inclined structure of the slide 14 drives the slide 14 to move back and forth through the extended end of the second electric push rod 15, which can frequently change the internal pressure of the filter bin 5, thereby playing a role in clearing and effectively solving the blockage problem without manual operation.

[0043] A method for preparing latex comprises the following steps: S1, natural latex and fluororubber are added into reactor 1, then the mixing mechanism is controlled to stir for 10-15 minutes, and the circulating heat exchange fluid enters interlayer 103, and the temperature is adjusted and maintained at 60-70 degrees Celsius, then the temperature is lowered by 40-50 degrees Celsius, and 0.5-1.5 parts of antioxidant, anti-aging agent and surfactant are added, and stirring is continued for 5-10 minutes, and finally the temperature is lowered to 40-50 degrees Celsius, sulfur, plasticizer, casein and stabilizer are added, and stirring is performed for 10-15 minutes to obtain latex liquid; S2, open the valve on the discharge port 102, control the second liquid pump 6 to pump the latex liquid into the buffer chamber 501, control the output end of the second motor 7 to drive the extrusion wheel 701 to rotate, and squeeze and break the block impurities bonded in the latex liquid through the extrusion wheel 701 to reduce the volume of the impurities; S3, the latex liquid falls into the conveying bin 8, and is initially filtered through the filter hole 801. Part of the filtered latex liquid flows into the main discharge pipe 13 from the first liquid outlet 502, and the rest of the latex liquid carrying impurities enters the filter tank 10 through the fourth pipe 802 under the conveyance of the screw conveyor 901; S4, controlling the fourth motor 12 to drive the stirrer 1101 to rotate, continuously stirring the latex liquid carrying impurities, filtering it twice through the filter bucket 11, and the latex liquid remaining in the filter bucket 11 flows into the main discharge pipe 13 through the second liquid outlet 1002; S5. After the mixing is completed in the reactor 1, the extended end of the first electric push rod 302 is controlled to move downward, driving the scraper 202 to move downward following the stirring rod 2, so that the scraper 202 is attached to the inner wall of the main chamber 104, and then the first motor 301 is controlled to drive the stirring rod 2 to rotate, so that the scraper 202 scrapes the inner wall of the main chamber 104, and automatically cleans the latex residue; S6. After the filtration in the filter tank 10 is completed, the top cover 1003 is opened to take out the filter bucket 11, and the impurities remaining in the filter bucket 11 are cleaned.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A latex preparation device, which is used to prepare a latex, characterized in that: The latex comprises the following material components in parts by weight: Natural latex is 100 parts, fluororubber is 20-30 parts, antioxidant is 0.5-2 parts, antioxidant is 0.2-0.6 parts, sulfur is 3-7 parts, plasticizer is 1-3 parts, stabilizer is 1-2 parts, casein is 0.2-0.5 parts, surfactant is 0.5-1.5 parts The preparation device comprises: A reaction kettle (1) is provided with a feed inlet (101) on its side, a discharge port (102) on its bottom, and an interlayer (103) and a main chamber (104) inside the reaction kettle. A mixing mechanism is provided inside the main chamber (104), and materials are mixed by the mixing mechanism to obtain a latex liquid. A heating box (4) storing heat exchange fluid therein and used to pass the heat exchange fluid into the interlayer (103) to provide a heating environment; The filter chamber (5) is provided with a buffer chamber (501) at the top and a first liquid outlet (502) at the bottom. By pumping latex liquid into the filter chamber (5), an extrusion mechanism is provided inside the filter chamber to squeeze the latex liquid and crush impurities therein. A conveying bin (8) is fixedly connected to the side of the filtering bin (5) at an angle and extends outwards, wherein the portion located inside the filtering bin (5) is provided with a filtering hole (801), and the portion located outside the filtering bin (5) is provided with a fourth pipe (802), through which part of the latex liquid flows downwards through the filtering hole (801), and a conveying mechanism is provided inside the conveying bin to convey the remaining latex liquid carrying impurities; A filter tank (10) having a slag inlet (1001) on its side fixedly connected to the fourth pipe (802), a filter bucket (11) fixedly connected thereto, a second liquid outlet (1002) at its bottom, and a stirring mechanism disposed therein to perform secondary filtration on the remaining latex liquid containing impurities; and The main discharge pipe (13) is fixedly connected to the lower ends of the first liquid outlet (502) and the second liquid outlet (1002) to collect the filtered latex liquid.

2. A latex preparation device according to claim 1, characterized in that: The mixing mechanism comprises a stirring rod (2), a shaft (201) and a first motor (301); the stirring rod (2) is rotatably connected to the upper inner wall of the main chamber (104); the shaft (201) is fixedly connected to the circumferential surface of the stirring rod (2); the first motor (301) is located on the upper side of the reaction kettle (1); the stirring rod (2) is fixedly connected to the output end of the first motor (301); a first electric push rod (302) is fixedly connected to the top of the reaction kettle (1); an extended end of the first electric push rod (302) is fixedly connected to a support plate (3); the first motor (301) is fixedly connected to the top of the support plate (3); and a scraper (202) is fixedly connected to the circumferential surface of the stirring rod (2).

3. A latex preparation device according to claim 2, characterized in that: A third pipeline (601) is fixedly connected between the discharge port (102) and the buffer chamber (501), and a second liquid pump (6) is installed on the third pipeline (601).

4. A latex preparation device according to claim 3, characterized in that: The output port of the heating box (4) is fixedly connected to a first liquid pump (401), a first pipeline (402) is fixedly connected between the first liquid pump (401) and the interlayer (103), and a second pipeline (403) is fixedly connected between the reflux port of the heating box (4) and the main chamber (104).

5. A latex preparation device according to claim 4, characterized in that: The extrusion mechanism comprises a second motor (7) and two extrusion wheels (701); the second motor (7) is fixedly connected to the side of the filter bin (5); the two extrusion wheels (701) are rotatably connected between the inner walls of the filter bin (5); the extrusion wheels (701) are located at the lower side of the buffer chamber (501); the output end of the second motor (7) is fixedly connected to one of the extrusion wheels (701); and one end of the axis of the two extrusion wheels (701) is fixedly connected to a spur gear (702) and meshes with each other.

6. A latex preparation device according to claim 5, characterized in that: The conveying mechanism comprises a third motor (9) and a screw conveyor (901); the third motor (9) is fixedly connected to the end of the conveying bin (8); the screw conveyor (901) is rotatably connected to the inside of the conveying bin (8); and the output end of the third motor (9) is fixedly connected to the screw conveyor (901).

7. A latex preparation device according to claim 6, characterized in that: The stirring mechanism comprises a fourth motor (12), a stirrer (1101) and a top cover (1003); the top cover (1003) is detachably arranged on the top of the filter tank (10); the fourth motor (12) is fixedly connected to the top of the top cover (1003); and the stirrer (1101) is fixedly connected to the output end of the fourth motor (12).

8. A latex preparation device according to claim 7, characterized in that: A slide groove (14) is fixedly connected to the side of the filter bin (5), a piston (16) is slidably connected inside the slide groove (14), a second electric push rod (15) is fixedly connected to the end of the slide groove (14), and the piston (16) is fixedly connected to the extended end of the second electric push rod (15).

9. A method for preparing latex, using a latex preparation device as claimed in claim 8, characterized in that: The preparation method comprises the following steps: S1, adding natural latex and fluororubber into a reaction kettle (1), then controlling the mixing mechanism to stir for 10-15 minutes, and circulating the heat exchange fluid into the interlayer (103), adjusting and maintaining the temperature at 60-70 degrees Celsius, then lowering the temperature by 40-50 degrees Celsius, adding 0.5-1.5 parts of antioxidant, anti-aging agent and surfactant, continuing to stir for 5-10 minutes, and finally lowering the temperature to 40-50 degrees Celsius, adding sulfur, plasticizer, casein and stabilizer, and stirring for 10-15 minutes to obtain a latex liquid; S2, opening the valve on the discharge port (102), controlling the second liquid pump (6) to pump the latex liquid into the buffer chamber (501), controlling the output end of the second motor (7) to drive the extrusion wheel (701) to rotate, and using the extrusion wheel (701) to squeeze and break the block impurities in the latex liquid, thereby reducing the volume of the impurities; S3, the latex liquid falls into the conveying bin (8), is initially filtered through the filter hole (801), and part of the filtered latex liquid flows into the main discharge pipe (13) from the first liquid outlet (502), and the rest of the latex liquid carrying impurities is conveyed by the screw conveyor (901) and enters the filter tank (10) through the fourth pipe (802); S4, controlling the fourth motor (12) to drive the stirrer (1101) to rotate, continuously stirring the latex liquid carrying impurities, filtering it twice through the filter bucket (11), and the latex liquid remaining in the filter bucket (11), and the latex liquid after the second filtration flows into the main discharge pipe (13) through the second liquid outlet (1002); S5. After the mixing is completed in the reaction kettle (1), the extended end of the first electric push rod (302) is controlled to move downward, driving the scraper (202) to move downward following the stirring rod (2), so that the scraper (202) fits the inner wall of the main chamber (104), and then the first motor (301) is controlled to drive the stirring rod (2) to rotate, so that the scraper (202) scrapes the inner wall of the main chamber (104), and automatically cleans the latex residue; S6. After the filtration in the filter tank (10) is completed, the top cover (1003) is opened to take out the filter bucket (11), and the impurities remaining in the filter bucket (11) are cleaned.

Images