Antibacterial rubber and calender thereof

Abstract

The invention relates to the technical field of antibacterial rubber, in particular to antibacterial rubber and a calender thereof. The antibacterial rubber is prepared from the following components in parts by weight: 250 parts of ethylene propylene diene monomer, 115 to 135 parts of paraffin oil, 1.5 to 1.8 parts of sulfur, 11 to 14 parts of ZnO, 2.5 to 3.5 parts of accelerant M, 2.5 to 3.5 parts of stearic acid, 1.0 to 1.5 parts of paraffin, 65 to 75 parts of carbon black N330, 140 to 150 parts of carbon black N550140, 0.9 to 1.2 parts of accelerant BZ, 4.0 to 4.5 parts of accelerant CZ, 1.5 to 2.0 parts of accelerant TRAA, 1.0 to 1.5 parts of accelerant TMTD, 3.5 to 4.0 parts of anti-aging agent RD and 6.5 to 8.0 parts of nano antibacterial agent. According to the antibacterial rubber and the calender thereof provided by the invention, the antibacterial property of the formed rubber is improved by utilizing the nano antibacterial agent raw material in the antibacterial rubber, bacteria breeding on the surface of a rubber product is reduced, the situation that the rubber product is easily eroded by mould or mould hypha to generate physical penetration is reduced, the service life of the rubber product is prolonged, and the safety of the rubber product is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of antibacterial rubber, and more specifically to an antibacterial rubber and its calender Background Art

[0002] Olefin rubber is an essential material for manufacturing aircraft, warships, automobiles, tractors, harvesters, neoprene, and drainage and irrigation machinery, medical devices, etc. Rubbers such as polypropylene, polyisobutylene, and α-olefin ethylene copolymers are made into daily-use and medical light industrial rubber products.

[0003] According to the patent with publication number CN101638491B, publication date: July 20, 2011, a disclosed rubber sheet includes: 1 a polymer component composed of nitrile rubber, natural rubber, and polyvinyl chloride; and 2 an inorganic filler. In one embodiment, the polymer component contains 55-65%, preferably 58-62% of nitrile rubber; 15-25%, preferably 18-22% of natural rubber, and 15-25%, preferably 18-22% of polyvinyl chloride.

[0004] In the prior art including the above patents, rubber products used in engineering are mostly in humid, high, and low-temperature environments. In such environments, rubber products are easily eroded by molds or mold filaments, resulting in physical penetration, greatly shortening the service life of rubber products, and seriously affecting infrastructure projects. Summary of the Invention

[0005] The purpose of the present invention is to provide an antibacterial rubber and its calender to solve the above problems.

[0006] To achieve the above purpose, the present invention provides the following technical solution: An antibacterial rubber is composed of the following components in parts by weight: ethylene propylene diene monomer rubber 250, paraffin oil 115-135, sulfur 1.5-1.8, ZnO 11-14, accelerator M 2.5-3.5, stearic acid 2.5-3.5, paraffin 1.0-1.5, carbon black N330 65-75, carbon black N550 140-150, accelerator BZ 0.9-1.2, accelerator CZ 4.0-4.5, accelerator TRA 1.5-2.0, accelerator TMTD 1.0-1.5, antioxidant RD 3.5-4.0, nano antibacterial agent 6.5-8.0.

[0007] A calender for calendering the antibacterial rubber described in the above solution includes a base, on which calendering rollers and mounting seats are symmetrically arranged to form a feed inlet. A group of flipping seats are symmetrically arranged on the mounting seats. A sticking roller is rotatably arranged at the end of the flipping seat. The flipping seat is driven to move and switch between the following two working positions:

[0008] The material contact station; the sticky roller of one turning seat in each of the two turning seats turns over and approaches the feeding port;

[0009] Touch roller station: the sticking rollers on the two sets of turning seats respectively touch the two calendering rollers.

[0010] Preferably, it also includes a driving seat horizontally slidably arranged on the mounting seat, the mounting seat is provided with a columnar portion, the columnar portion is movably arranged in a first movable groove opened on the flip seat, and the first end of the flip seat is rotatably connected to the driving seat.

[0011] Preferably, a plurality of brush plates are movably arranged in a linear array on the flip seat, the flip seat is located under the touch roller station so that the brush plate is perpendicular to the flip seat, and the end of the flip seat is in contact with the calendering roller, and the flip seat is switched from the touch roller station to the bonding station so that the brush plate can move closer to the flip seat.

[0012] Preferably, it includes a sliding seat slidably arranged in the flip seat, the first end of the brush plate is rotatably connected to the sliding seat, the flip seat is provided with a mounting groove, a linear array of mounting column parts are arranged in the mounting groove, and the mounting column parts are movably arranged in a second movable groove opened on the brush plate.

[0013] Preferably, it also includes a rotating sleeve on which a resistance shaft is arranged, the rotating sleeve is rotatably arranged on the columnar portion so that the resistance shaft slides axially on the flip seat, and the columnar portion is movable in the first movable groove so that the resistance shaft slides to push the sliding seat to slide.

[0014] Preferably, the columnar portion is provided with an injection hole and an ejection groove connected to the injection hole, the resistance shaft is provided with a through hole facing the ejection groove, the flip seat is provided with an outflow channel facing the sticky roller, and the sliding seat is provided with a connected air inlet hole and an air separation groove, the air inlet hole is coaxially aligned with the through hole, and the two openings of the air separation groove face the brush plate and the outflow channel respectively.

[0015] Preferably, it also includes elastic plates arranged in a linear array, with two ends of which are respectively fixedly connected to the brush plate and the sliding seat so that the elastic plates are arc-shaped to guide the gas flowing out of the gas distribution groove to flow between the brush plates.

[0016] Preferably, the sliding seat is provided with an arched portion, the brush plate is provided with an extension portion, the extension portion is provided with a resistance groove, the brush plate moves close to the flip seat so that the arched portion squeezes the elastic plate to deform and arch in the reverse direction, and the elastic plate arches and resists the resistance groove to seal between the brush plates.

[0017] Preferably, a protruding groove is provided on the mounting groove, and the sliding seat drives the brush plate to move close to the flip seat so that an end of one of the brush plates contacts the sticking roller.

[0018] In the above technical solution, an antibacterial rubber and a calender provided by the present invention have the following beneficial effects: The antibacterial property of the formed rubber is improved by using the nano antibacterial agent raw material in the antibacterial rubber, the bacterial growth on the surface of the rubber product is reduced, the situation that the rubber product is easily eroded by molds or mold filaments and physically penetrated is reduced, and the service life and safety of the rubber product are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments recorded in the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings.

[0020] Figure 1 Schematic diagram of the overall structure provided by an embodiment of the present invention;

[0021] Figure 2 Schematic cross-sectional view of the overall structure provided by an embodiment of the present invention;

[0022] Figure 3 Schematic diagram of the structures of the mounting seat, driving seat, flipping seat and brush plate provided by an embodiment of the present invention;

[0023] Figure 4 Exploded structure diagram of the mounting seat, driving seat, flipping seat and brush plate provided by an embodiment of the present invention

[0024] Figure 5 Exploded structure diagram of the flipping seat and the sticking roller provided by an embodiment of the present invention;

[0025] Figure 6 Exploded structure diagram of the sliding seat and the rotating sleeve provided by an embodiment of the present invention;

[0026] Figure 7 Exploded structure diagram of the brush plate and the elastic plate provided by an embodiment of the present invention;

[0027] Figure 8 Provided by an embodiment of the present invention Figure 2 Local enlarged view at A in;

[0028] Figure 9 Provided by an embodiment of the present invention Figure 6 Local enlarged view at B in;

[0029] Figure 10 Provided by an embodiment of the present invention Figure 7 Local enlarged view at C in.

[0030] Description of the reference numerals:

[0031] 1. Base; 11. Calendering roller; 12. Driving motor; 13. Feeding port; 21. Mounting seat; 211. Columnar part; 212. Rotating groove; 213. Gas injection hole; 214. Spraying groove; 215. Sliding groove; 22. Driving seat; 221. Mounting hole; 222. Sliding part; 23. Flipping seat; 231. First moving groove; 232. Mounting groove; 2321. Extending groove; 233. Mounting column part; 234. Outflow channel; 235. Mounting part; 236. Rotating part; 237. Sliding cavity; 24. Adhesive roller; 25. Brush plate; 251. Second moving groove; 252. Extending part; 253. Contact groove; 254. First connecting groove; 3. Sliding seat; 31. Bearing plate part; 32. Air inlet hole; 321. Air distribution groove; 33. Arching part; 34. Second connecting groove; 35. Rotating hole; 4. Rotating sleeve; 41. Contact shaft; 42. Through hole; 5. Elastic plate; 91. Gas injection pipe; 92. Driving cylinder; 93. Elastic member. Detailed implementation mode

[0032] In order to make the objectives, technical solutions, and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are some, but not all, of the embodiments of the present disclosure. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.

[0033] Embodiment 1

[0034] An antibacterial rubber is composed of the following components in parts by weight: ethylene propylene diene monomer rubber 250, paraffin oil 115 - 135, sulfur 1.5 - 1.8, ZnO 11 - 14, accelerator M 2.5 - 3.5, stearic acid 2.5 - 3.5, paraffin 1.0 - 1.5, carbon black N330 65 - 75, carbon black N550 140 - 150, accelerator BZ 0.9 - 1.2, accelerator CZ 4.0 - 4.5, accelerator TRA 1.5 - 2.0, accelerator TMTD 1.0 - 1.5, antioxidant RD 3.5 - 4.0, nano antibacterial agent 6.5 - 8.0.

[0035] Specifically, the antibacterial rubber is composed of the following raw materials in parts by weight: 250 parts of ethylene propylene diene monomer (EPDM), 115 - 135 parts of paraffin oil, 1.5 - 1.8 parts of sulfur, 11 - 14 parts of ZnO, 2.5 - 3.5 parts of accelerator M, 2.5 - 3.5 parts of stearic acid, 1.0 - 1.5 parts of paraffin, 65 - 75 parts of carbon black N330, 140 - 150 parts of carbon black N550, 0.9 - 1.2 parts of accelerator BZ, 4.0 - 4.5 parts of accelerator CZ, 1.5 - 2.0 parts of accelerator TRA, 1.0 - 1.5 parts of accelerator TMTD, 3.5 - 4.0 parts of antioxidant RD, and 6.5 - 8.0 parts of nano antibacterial agent.

[0036] During the production process, the weighed ethylene propylene diene monomer (EPDM), carbon black N550, carbon black N330, one - third of the parts by weight of ZnO and stearic acid are put into a mixer and kneaded at a kneading temperature of 130 ± 5 °C. Subsequently, it is transferred to a two - roll mill for thin - passing and coiling. After standing and cooling, one - half of the parts by weight of sulfur, etc. are added for mixing to form a compounded rubber. Then, the compounded rubber, as well as the weighed two - thirds of the parts by weight of ZnO, nano antibacterial agent, stearic acid, paraffin oil, one - half of the parts by weight of sulfur, accelerators, antioxidant RD, paraffin, and paraffin oil are put into a mixer. At a kneading temperature of 95 - 100 °C, it is evenly mixed in the hopper for 4 - 5 minutes. After the kneaded rubber compound is added to the two - roll mill and kneaded evenly, it is thin - passed 2 - 3 times and then sheeting is carried out. The vulcanization time of the semi - finished rubber compound is tested. Finally, the best vulcanization time is selected for vulcanizing the rubber product. The nano antibacterial agent raw material in the antibacterial rubber is used to improve the antibacterial property of the formed rubber, reduce the bacterial growth on the surface of the rubber product, reduce the physical penetration caused by the rubber product being easily eroded by mold or mold filaments, and improve the service life and safety of the rubber product.

[0037] In the above - mentioned technical solution, the nano antibacterial agent raw material in the antibacterial rubber is used to improve the antibacterial property of the formed rubber, reduce the bacterial growth on the surface of the rubber product, reduce the physical penetration caused by the rubber product being easily eroded by mold or mold filaments, and improve the service life and safety of the rubber product.

[0038] Example Two

[0039] As Figures 1 - 10 shown, this example is used to calender and form the antibacterial rubber prepared by mixing in Example One into a rubber sheet. It includes a base 1, on which a calender roll 11 and a mounting seat 21 are symmetrically arranged to form a feed inlet 13. A group of flipping seats 23 are symmetrically arranged on the mounting seat 21. A sticking roll 24 is rotatably arranged at the end of the flipping seat 23. The flipping seat 23 is driven to move and switch between the following two working positions:

[0040] Material - contacting working position; for each of the two groups of flipping seats 23, the sticking roll 24 of one flipping seat 23 flips and approaches the feed inlet 13;

[0041] Touch roller station; the adhesive rollers 24 on the two sets of flipping seats 23 respectively abut against the two calender rollers 11.

[0042] Specifically, the adhesive roller 24 is rotatably arranged on the mounting part 235 of the flipping seat 23. As Figure 2 shown, the calender rollers 11 and the mounting seats 21 are symmetrically arranged on the base 1. The two calender rollers 11 are rotatably arranged on the base 1, and a driving motor 12 for driving the calender rollers 11 to rotate synchronously and in opposite directions is arranged on the base 1. An inlet 13 is formed between the two mounting seats 21 so that the inlet 13 is aligned with the position between the two calender rollers 11. The flipping seats 23 are symmetrically and movably arranged on the mounting seats 21, and the adhesive rollers 24 are rotatably arranged at the ends of the flipping seats 23. When calendering operation of the rubber compound is required, the rubber compound enters from the inlet 13 and is calendered between the two calender rollers 11. When the flipping seats 23 on the mounting seats 21 move to the material-touching station, the two flipping seats 23 on each mounting seat 21 can be regarded as a set. And at this time, as Figure 2 shown, in each set of flipping seats 23, one flipping seat 23 close to the inlet 13 will move close to the inlet 13 so that the adhesive rollers 24 on the flipping seats 23 abut and clamp both sides of the rubber compound. As the rubber compound moves through the position between the inlet 13 and the calender rollers 11, the adhesive rollers 24 abut against both sides of the rubber compound and roll along with the movement of the rubber compound. At this time, the presence of the adhesive rollers 24 is used to remove small particle rubber debris on the surface of the rubber compound, so as to avoid the problem of sticky rubber on the surface of the calender roller 11 caused by the small particle rubber debris falling off from the rubber compound and sticking to the calender roller 11. Secondly, the adhesive rollers 24 can also preliminarily extrude the rubber compound to improve the flatness of the rubber compound calendered by the calender rollers 11 subsequently.

[0043] After the calendering operation of the calender roller 11 is completed, at this time, the two sets of flipping seats 23 can be both movably switched to the touch roller station. At this time, the two sets of flipping seats 23 both move so that the adhesive rollers 24 on the two sets of flipping seats 23 respectively abut against the two calender rollers 11. Subsequently, the calender rollers 11 can be driven to rotate so that the adhesive rollers 24 roll and remove the rubber compound debris particles and dust sticking to the surface of the calender rollers 11, thereby realizing the cleaning and maintenance of the surface of the calender rollers 11 and reducing the problem of poor flatness of the calendered rubber sheet caused by the existence of rubber compound debris or dust on the calender rollers 11.

[0044] Among them, the flipping seat 23 can be flip-movably arranged on the mounting seat 21, or can be slidably arranged on the mounting seat 21, or can be replaced by other known arrangements in the art that can make the flipping seat 23 move between the material-touching station and the touch roller station for switching.

[0045] In the above technical solution, when the flipping seat 23 is located at the material-touching station, the sticking rollers 24 are abutted and clamped on both sides of the rubber material. The sticking rollers 24 are abutted on both sides of the rubber material to remove small-particle rubber debris on the surface of the rubber material, thereby avoiding the problem of glue sticking on the surface of the calender roll 11 caused by the small-particle rubber debris falling off the rubber material and sticking to the calender roll 11. When the flipping seat 23 is located at the roller-touching station, the sticking rollers 24 can be abutted on the calender roll 11 to roll and remove the rubber material debris particles and dust sticking to the surface of the calender roll 11.

[0046] As another embodiment provided by the present invention, it further includes a driving seat 22 horizontally slidably arranged on the mounting seat 21. A columnar portion 211 is provided on the mounting seat 21. The columnar portion 211 is movably arranged in a first moving groove 231 opened on the flipping seat 23, and the first end of the flipping seat 23 is rotatably connected to the driving seat 22.

[0047] Specifically, the sliding portion 222 of the driving seat 22 is horizontally slidably arranged in a sliding groove 215 opened on the mounting seat 21, and a rotating portion 236 provided on the flipping seat 23 is rotatably arranged on a mounting hole 221 of the driving seat 22. As Figure 4 shown, the columnar portion 211 is movably arranged in the first moving groove 231 in an oval shape of the flipping seat 23. The end of the flipping seat 23 close to the mounting seat 21 is the first end, and the first end of the flipping seat 23 is rotatably connected to the driving seat 22. As Figure 2 shown, when the driving seat 22 is driven to horizontally slide, the driving seat 22 pulls the first end of the flipping seat 23 to move synchronously so that the first moving groove 231 moves relative to the columnar portion 211. At this time, the flipping seat 23 is pulled by the driving seat 22 to flip and slide, thereby using the driving seat 22 and the columnar portion 211 to realize the active switching of the working station of the flipping seat 23 and improve the running stability of the active switching of the working station of the flipping seat 23. As Figure 2 shown, when the driving seat 22 is located on the side closest to the mounting seat 21 in the sliding stroke, the flipping seat 23 is located at the roller-touching station at this time so that the sticking rollers 24 are abutted on the calender roll 11, and the sticking rollers 24 rotate along with the calender roll 11 to remove the surface debris of the calender roll 11.

[0048] Subsequently, if the driving seat 22 is driven to slide out towards the mounting seat 21, the driving seat 22 at this time pushes the flipping seat 23 to actively switch to the material-touching station. The driving seat 22 slides out to push the first moving groove 231 of the flipping seat 23 to move relative to the columnar portion 211. At this time, the flipping seat 23 first moves so that the sticking rollers 24 roll forward on the surface of the calender roll 11, and then the flipping seat 23 drives the sticking rollers 24 to move away from the calender roll 11, so that the sticking rollers 24 do not leave the calender roll 11 in a direction perpendicular to the surface of the calender roll 11, thereby avoiding the re-sticking of the rubber material debris stuck on the sticking rollers 24 to the surface of the calender roll 11 and improving the sticking stability of the sticking rollers 24 to the rubber material debris on the surface of the calender roll 11.

[0049] Among them, a driving cylinder 92 for driving the driving seat 22 to slide horizontally is arranged in the mounting seat 21. The driving cylinder 92 and its control program are well-known technical common sense to those skilled in the art and will not be elaborated here.

[0050] As another embodiment provided by the present invention, a plurality of brush plates 25 are linearly and arrayedly arranged on the turning seat 23. When the turning seat 23 is located under the contact roller station, the brush plates 25 are perpendicular to the turning seat 23, and the end of the turning seat 23 abuts against the calender roll 11. The turning seat 23 is switched from the contact roller station to the glue sticking station so that the brush plates 25 move closer to the turning seat 23.

[0051] Specifically, a plurality of brush plates 25 are linearly and arrayedly arranged on the turning seat 23. The end of the brush plate 25 is rotatably arranged in the rotating hole 35 of the sliding seat 3, and the distance that the end of the brush plate 25 extends out of the outside of the turning seat 23 increases. Thus, when the turning seat 23 is located at the contact roller station, as Figure 8 shown, the sticking roller 24 abuts against the surface of the calender roll 11, and the ends of a plurality of brush plates 25 can all abut against the surface of the calender roll 11. At this time, the calender roll 11 can be rotated, and the sticking roller 24 rotates along with the calender roll 11 to remove the surface debris of the calender roll 11, while the brush plates 25 abut against the calender roll 11 to scrape the glue material with strong adhesiveness on the surface of the calender roll 11, thereby further cleaning and maintaining the surface of the calender roll 11 and reducing the problem that the subsequent calendered rubber sheet is uneven due to the adhesion of residual glue material on the calender roll 11.

[0052] Moreover, the brush plates 25 are movably arranged on the turning seat 23. When the turning seat 23 is switched from the contact roller station to the contact material station, the brush plates 25 are also driven to move so that the brush plates 25 move closer to the turning seat 23. Thus, when the turning seat 23 moves away from the calender roll 11, the brush plates 25 also move on the turning seat 23 so that the ends of the brush plates 25 do not leave the calender roll 11 perpendicular to the surface of the calender roll 11. Therefore, during the process of the brush plates 25 leaving the calender roll 11, it can be avoided that the glue material scraped between the brush plates 25 re-adheres to the surface of the calender roll 11, thereby ensuring the scraping stability of the glue material on the surface of the calender roll 11 by the brush plates 25.

[0053] When the flipping seat 23 is switched from the material-touching station to the roller-touching station, during the process that the flipping seat 23 slides and approaches the calender roll 11 in a flipping manner, the sliding seat 3 also slides synchronously so that the brush plate 25 flips and slides out of the flipping seat 23 to approach the surface of the calender roll 11. Thus, when the sticky roller 24 on the flipping seat 23 abuts against the surface of the calender roll 11, the brush plate 25 flips and slides to approach the surface of the calender roll 11 so that the end of the brush plate 25 approaches and abuts against the surface of the calender roll 11 in an inclined manner, and an included angle less than 90° is formed between the end of the brush plate 25 and the surface of the calender roll 11, thereby further improving the scraping stability of the rubber material on the surface of the calender roll 11 by the brush plate 25.

[0054] Wherein, the brush plate 25 can be arranged on the flipping seat 23 in a flipping manner, or can be arranged on the flipping seat 23 in a sliding manner, or other replacement arrangement manners well-known to those skilled in the art that can make the brush plate 25 approach the flipping seat 23 in an active manner are all acceptable.

[0055] As another embodiment provided by the present invention, it includes a sliding seat 3 slidably arranged in the flipping seat 23. The first end of the brush plate 25 is rotatably connected to the sliding seat 3. An installation groove 232 is formed on the flipping seat 23, and installation column parts 233 are linearly arranged in an array in the installation groove 232. The installation column parts 233 are respectively arranged in a movable manner in the second movable grooves 251 formed on the brush plate 25.

[0056] Specifically, as Figure 8 shown, the end of the brush plate 25 close to the sliding seat 3 is the first end. The first end of the brush plate 25 is rotatably arranged on the sliding seat 3, and the installation column parts 233 of the flipping seat 23 are movably arranged in the second movable grooves 251 in a waist-shaped manner of the brush plate 25. Furthermore, the sliding seat 3 can slide to drive the brush plate 25 to flip and slide in the installation groove 232. When the flipping seat 23 is located at the roller-touching station and the sliding seat 3 is located at one end of its sliding stroke close to the sticky roller 24, the sliding seat 3 pushes against the flipping seat 23 to make the second movable groove 251 move relative to the installation column part 233. At this time, the brush plate 25 vertically extends out of the outside of the installation groove 232 so that the end of the brush plate 25 abuts against the surface of the calender roll 11.

[0057] When the flipping seat 23 is switched from the roller-touching station to the material-touching station, the sliding seat 3 slides away from the sticky roller 24 to pull the end of the brush plate 25. At this time, the brush plate 25 is pulled and flipped and slides so that the brush plate 25 actively approaches the flipping seat 23 and gradually enters the installation groove 232. And as Figure 8As shown, in the process that the brush plate 25 is pulled, rotated and slides close to the turning seat 23, the end of the brush plate 25 extending out of the turning seat 23 will first scrape along the surface of the calendering roller 11, and then the end of the brush plate 25 extending out of the turning seat 23 will follow the brush plate 25 to move close to the turning seat 23, so that the end of the brush plate 25 first shovels the surface of the calendering roller 11 forward and then moves away from the surface of the calendering roller 11, thereby further avoiding the problem of the scraped rubber between the brush plates 25 re-adhering to the calendering roller 11, and can also shovel the sticky rubber between the brush plate 25 and the surface of the calendering roller 11 to between the brush plates 25 to take the sticky rubber away, thereby improving the stability of rubber removal on the surface of the calendering roller 11.

[0058] As another embodiment provided by the present invention, it also includes a rotating sleeve 4, on which a resistance shaft 41 is arranged. The rotating sleeve 4 is rotatably arranged on the columnar portion 211 so that the resistance shaft 41 can slide axially on the flip seat 23, and the columnar portion 211 is movable in the first movable groove 231 so that the resistance shaft 41 can slide to push the sliding seat 3 to slide.

[0059] Specifically, the rotating sleeve 4 is rotatably disposed on the rotating groove 212 of the columnar portion 211. Figure 8 As shown, the abutment shaft 41 of the rotating sleeve 4 is axially slidably arranged on the flip seat 23. When the flip seat 23 is located at the contact roller position, the abutment shaft 41 of the rotating sleeve 4 pushes the supporting plate portion 31 of the sliding seat 3 so that the sliding seat 3 slides close to the sticking roller 24, and then the rotating sleeve 4 and the sliding seat 3 are used to drive the brush plate 25 to flip and slide to extend vertically outward from the flip seat 23, and the end of the brush plate 25 is abutted against the surface of the calendering roller 11.

[0060] A sliding cavity 237 is also provided in the flip seat 23. The bearing plate portion 31 of the sliding seat 3 is slidably arranged in the sliding cavity 237. The sliding cavity 237 is provided with an elastic member 93 for driving the bearing plate portion 31 to slide close to the abutment shaft 41. When the flip seat 23 is switched from the roller contacting station to the material contacting station, the first movable groove 231 of the flip seat 23 slides relative to the columnar portion 211, so that the abutment shaft 41 of the rotating sleeve 4 slides axially away from the sliding seat 3, and the elastic member 93 can drive the sliding seat 3 to slide away from the sticking roller 24 so that the sliding seat 3 pulls the end of the brush plate 25. At this time, the brush plate 25 is pulled and flipped and slides so that the brush plate 25 moves close to the flip seat 23 and gradually enters the mounting groove 232. Thus, the rotating sleeve 4 and the abutment shaft 41 are used to realize the driving of the sliding seat 3, and the driving stability of the sliding seat 3 is improved.

[0061] By using the elastic member 93 to make the sliding seat 3 slide and drive the brush plate 25 to move closer to the flipping seat 23 with a stroke slightly delayed than the stroke of the flipping seat 23 moving away from the calender roll 11, it can avoid the hard pulling of the sliding seat 3 and improve the service life of the sliding seat 3 and the brush plate 25. Secondly, it can also ensure that the brush plate 25 first follows the movement of the flipping seat plate 23 to reduce the surface pressure on the calender roll 11, and then make the end of the brush plate 25 shovel forward on the surface of the calender roll 11 to complete the shoveling of the rubber compound, improving the service life of the brush plate 25 and avoiding damage to the brush plate 25 caused by excessive pressure.

[0062] As another embodiment provided by the present invention, an air injection hole 213 and a spraying groove 214 communicating with the air injection hole 213 are formed on the columnar portion 211, a through hole 42 facing the spraying groove 214 is formed on the abutting shaft 41, an outflow channel 234 facing the sticky roll 24 is formed on the flipping seat 23, and an air inlet hole 32 and a gas distribution groove 321 communicating with each other are formed on the sliding seat 3. The air inlet hole 32 is coaxially aligned with the through hole 42, and the two openings of the gas distribution groove 321 face the brush plate 25 and the outflow channel 234 respectively.

[0063] Specifically, as Figure 1 shown, it further includes an air injection pipe 91 connected to the air injection hole 213. The air injection pipe 91 is used to fill hot air into the air injection hole 213. As Figure 8 shown, the hot air flows into the air inlet hole 32 along the air injection hole 213, the spraying groove 214 and the through hole 42, and is guided by the two openings of the gas distribution groove 321 to flow to the brush plate 25 and the outflow channel 234 respectively. Part of the hot air flows to the brush plate 25 to preheat the brush plate 25 body, and the other part of the hot air flows out along the outflow channel 234 to heat the sticky roll 24, thereby further facilitating the scraping or sticking operation of the residual rubber compound on the surface of the calender roll 11 by the brush plate 25 and the sticky roll 24.

[0064] As still another embodiment provided by the present invention, it further includes elastic plates 5 arranged in a linear array, and both ends of the elastic plates 5 are fixedly connected to the brush plate 25 and the sliding seat 3 respectively to make the elastic plates 5 arc-shaped to guide the gas flowing out of the gas distribution groove 321 to flow between the brush plates 25.

[0065] Specifically, as Figure 8As shown, one end of the elastic plate 5 is fixed in the first connection groove 254 of the brush plate 25, and the other end of the elastic plate 5 is fixed in the second connection groove 34 of the sliding seat 3. When the flipping seat 23 is actively switched to the contact roller station, the sliding seat 3 slides to drive the brush plate 25 to flip and slide out of the outside of the flipping seat 23, and the end of the brush plate 25 moves to contact the surface of the calender roll 11. At this time, the elastic plate 5 is in an arc shape at the connection between the brush plate 25 and the sliding seat 3, and the air flow flowing out of the air distribution groove 321 flows along the surface of the sliding seat 3 and is guided by the arc-shaped surface of the elastic plate 5 to enter between the brush plates 25, thereby further heating and preheating the main body of the brush plate 25, and improving the viscosity of the rubber material scraped off the calender roll 11 between the brush plates 25, so that the rubber material can adhere to the brush plate 25 and will not fall back onto the surface of the calender roll 11 again.

[0066] As another embodiment provided by the present invention, a raised portion 33 is provided on the sliding seat 3, an extension portion 252 is provided on the brush plate 25, and a contact groove 253 is provided on the extension portion 252. The brush plate 25 actively approaches the flipping seat 23 so that the raised portion 33 squeezes the elastic plate 5 to deform and arch reversely, and the elastic plate 5 arches against the contact groove 253 to block between the brush plates 25.

[0067] Specifically, the raised portion 33 is located at the connection position between the sliding seat 3 and the brush plate 25, and the contact groove 253 is formed on the extension portion 252 of the brush plate 25. When the flipping seat 23 is actively switched from the contact roller station to the contact material station, the sliding seat 3 slides to drive the brush plate 25 to flip and slide close to the installation groove 232 of the flipping seat 23. At this time, the brush plate 25 also flips and approaches relative to the sliding seat 3, and the raised portion 33 will gradually squeeze the elastic plate 5 to deform and arch reversely. Until the flipping seat 23 moves to the contact material station, the sliding seat 3 drives the extension portion 252 of the brush plate 25 to enter the installation groove 232, and the elastic plate 5 arches away from the sliding seat 3 due to its own elasticity and the push of the raised portion 33, and the elastic plate 5 abuts against the contact groove 253 to complete the blocking between the brush plates 25, so that the air flow flowing out of the air distribution groove 321 will not flow out along the gap between the brush plates 25 after flowing along the surface of the sliding seat 3, avoiding the air flow directly blowing out and dropping the rubber material scraped off the calender roll 11 between the brush plates 25, and ensuring the collection stability of the scraped rubber material between the brush plates 25.

[0068] When the brush plate 25 is driven by the sliding seat 3 to flip and slide away from the surface of the calender roll 11 and close to the flipping seat 23, the elastic plate 5 is pushed by its own elasticity and the arching part 33, and changes from the state of arching towards the sliding seat 3 to the state of arching away from the sliding seat 3. At this time, the elastic plate 5 deforms, and the speed of changing the arching direction is relatively fast, causing vibration on the brush plate 25. Thus, while the brush plate 25 flips away from the surface of the calender roll 11, it is instantaneously shoveled forward by the vibration of the elastic plate 5, so as to shovel up and clean the relatively firmly adhered residual rubber between the surface of the calender roll 11 and the end of the brush plate 25, facilitating the removal of the residual rubber and hard clamped materials with a large adhesion force on the surface of the calender roll 11.

[0069] Among them, it is still necessary to manually clean the rubber scraped between the brush plates 25 regularly to ensure the service life of the brush plates 25.

[0070] When the flipping seat 23 is switched from the material-touching station to the roller-touching station, the sliding seat 3 is driven to slide, so that the brush plate 25 flips and slides outwards from the installation groove 232 towards the outside of the flipping seat 23. At this time, the brush plate 25 moves to squeeze the elastic plate 5 through the extension part 252, so that the elastic plate 5 is pressed and deformed into an arc shape towards the sliding seat 3 side to realize guiding the air flow between the brush plates 25.

[0071] As another embodiment provided by the present invention, an extension groove 2321 is opened on the installation groove 232, and the sliding seat 3 drives the brush plate 25 to move close to the flipping seat 23 so that the end of one of the brush plates 25 abuts against the rubber sticking roller 24.

[0072] Specifically, as Figure 8 shown, an extension groove 2321 is opened at one end of the installation groove 232 close to the rubber sticking roller 24. When the flipping seat 23 switches to the material-touching station, the abutting shaft 41 of the rotating sleeve 4 slides away from the flipping seat 23, and the elastic member 93 drives the sliding seat 3 to slide away from the rubber sticking roller 24. At this time, several brush plates 25 are all pulled by the sliding seat 3 to flip and slide close to the flipping seat 23 until several brush plates 25 all move into the installation groove 232. At this time, the end of the brush plate 25 closest to the rubber sticking roller 24 abuts against the rubber sticking roller 24 through the extension groove 2321. And the flipping seat 23 is already located at the material-touching station so that the rubber sticking roller 24 abuts against both sides of the rubber to be calendered. The rubber sticking roller 24 rotates along with the movement of the rubber to be calendered to clean the debris on the rubber, and the end of the brush plate 25 abuts against the surface of the rubber sticking roller 24 to scrape the rubber adhered to the surface of the rubber sticking roller 24. Thus, it is avoided that the rubber debris adhered to the rubber sticking roller 24 falls and adheres to the rubber to be calendered, improving the flatness of the calendering and forming of the rubber to be calendered.

[0073] Working principle: When the calendering operation is carried out, the driving seat 22 slides out towards the mounting seat 21. At this time, the driving seat 22 pushes against the flipping seat 23 to move towards the material-touching station. The abutting shaft 41 of the rotating sleeve 4 slides away from the flipping seat 23, and the elastic member 93 drives the sliding seat 3 to slide away from the sticking roller 24. At this time, the end of the brush plate 25 closest to the sticking roller 24 abuts against the sticking roller 24 through the protruding groove 2321. And in each group of flipping seats 23, one flipping seat 23 close to the feeding port 13 will move close to the feeding port 13 so that the sticking roller 24 on it abuts and clamps both sides of the rubber compound. As the rubber compound moves between the feeding port 13 and the calendering roller 11, the sticking roller 24 abuts against both sides of the rubber compound and rolls along with the movement of the rubber compound;

[0074] When the calendering operation is not carried out, the driving seat 22 slides close to one side of the mounting seat 21. The flipping seat 23 moves towards the roller-touching station. The abutting shaft 41 of the rotating sleeve 4 pushes against the bearing plate portion 31 of the sliding seat 3 so that the sliding seat 3 slides close to the sticking roller 24. The sliding seat 3 pushes against the flipping seat 23 to make the second movable groove 251 move relative to the mounting column portion 233. At this time, the brush plate 25 vertically protrudes outside the mounting groove 232 so that the end of the brush plate 25 abuts against the surface of the calendering roller 11, and the end of the brush plate 25 is inclined to move close to and abut against the surface of the calendering roller 11, realizing that the end of the brush plate 25 forms an angle less than 90° with the surface of the calendering roller 11. And the air injection pipe 91 injects hot air into the air injection hole 213. The hot air flows into the air inlet hole 32 along the air injection hole 213, the ejection groove 214 and the through hole 42, and is guided by the two openings of the air distribution groove 321 to flow to the brush plate 25 and the outflow channel 234 respectively. And part of the hot air flows to the brush plate 25 to preheat the brush plate 25 body, and the other part of the hot air flows out along the outflow channel 234 to heat the sticking roller 24. And the flipping seat 23 is located at the roller-touching station so that the sticking roller 24 abuts against the calendering roller 11, and the sticking roller 24 rotates along with the calendering roller 11 to remove the surface debris of the calendering roller 11, and the brush plate 25 abuts against the calendering roller 11 to scrape off the rubber compound with strong adhesiveness on the surface of the calendering roller 11.

[0075] Only some exemplary embodiments of the present invention have been described by way of illustration above. Undoubtedly, for those of ordinary skill in the art, without departing from the spirit and scope of the present invention, the described embodiments can be modified in various different ways. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the protection scope of the claims of the present invention.

Claims

1. An antibacterial rubber, characterized in that, The invention is composed of the following components in parts by weight: 250 EPDM rubber, 115-135 paraffin oil, 1.5-1.8 sulfur, 11-14 ZnO, 2.5-3.5 accelerator M, 2.5-3.5 stearic acid, 1.0-1.5 paraffin, 65-75 carbon black N330, 140-150 carbon black N550, 0.9-1.2 accelerator BZ, 4.0-4.5 accelerator CZ, 1.5-2.0 accelerator TRA, 1.0-1.5 accelerator TMTD, 3.5-4.0 antioxidant RD and 6.5-8.0 nano antibacterial agent.

2. A calender, which is used to calender the antibacterial rubber described in claim 1 above to form a rubber sheet, and is characterized in that, The invention comprises a base (1) on which a calendering roller (11) and a mounting seat (21) are symmetrically arranged to form a feed port (13); a group of flip seats (23) are symmetrically arranged on the mounting seat (21); a sticking roller (24) is rotatably arranged at the end of the flip seat (23); the flip seat (23) is driven to move and switch between the following two positions: The material contact station; each of the two groups of flip seats (23) has a sticking roller (24) of a flip seat (23) flipped close to the feed port (13); The sticking rollers (24) on the two groups of turning seats (23) respectively contact the two calendering rollers (11).

3. A calender according to claim 2, wherein, The invention also comprises a driving seat (22) horizontally slidably arranged on the mounting seat (21), wherein the mounting seat (21) is provided with a columnar portion (211), wherein the columnar portion (211) is movably arranged in a first movable groove (231) provided on the flip seat (23), and the first end of the flip seat (23) is rotatably connected to the driving seat (22).

4. A calender according to claim 3, characterized in that, A plurality of brush plates (25) are movably arranged in a linear array on the flip seat (23); the flip seat (23) is located below the contact roller station so that the brush plates (25) are perpendicular to the flip seat (23), and the end of the flip seat (23) contacts the calendering roller (11); the flip seat (23) is switched from the contact roller station to the bonding station so that the brush plates (25) move closer to the flip seat (23).

5. A calender according to claim 4, characterized in that, The invention comprises a sliding seat (3) slidably arranged in a flip seat (23); the first end of the brush plate (25) is rotatably connected to the sliding seat (3); a mounting groove (232) is provided on the flip seat (23); a linear array of mounting columns (233) are provided in the mounting groove (232); the mounting columns (233) are respectively movably arranged in second movable grooves (251) provided on the brush plate (25).

6. A calender according to claim 5, characterized in that, It also comprises a rotating sleeve (4) on which a resistance shaft (41) is arranged. The rotating sleeve (4) is rotatably arranged on the columnar portion (211) so that the resistance shaft (41) is located on the flip seat (23) and slides axially. The columnar portion (211) is located in the first movable groove (231) and moves so that the resistance shaft (41) slides and pushes the sliding seat (3) to slide.

7. A calender according to claim 6, characterized in that, The columnar part (211) is provided with an air injection hole (213) and an ejection groove (214) communicating with the air injection hole (213). The contact shaft (41) is provided with a through hole (42) facing the ejection groove (214). The flipping seat (23) is provided with an outflow channel (234) facing the adhesive roller (24). The sliding seat (3) is provided with an air inlet hole (32) and an air distribution groove (321) communicating with each other. The air inlet hole (32) is coaxially aligned with the through hole (42), and the two openings of the air distribution groove (321) respectively face the brush plate (25) and the outflow channel (234).

8. A calender according to claim 7, characterized in that, It further includes elastic plates (5) arranged in a linear array, and both ends of the elastic plates are fixedly connected to the brush plate (25) and the sliding seat (3) respectively so that the elastic plates (5) are arc-shaped to guide the gas flowing out of the air distribution groove (321) to flow between the brush plates (25).

9. A calender according to claim 8, characterized in that, The sliding seat (3) is provided with a raised part (33). The brush plate 2 (5) is provided with an extension part 2 (52). The extension part (252) is provided with a contact groove (253). The brush plate (25) moves closer to the flipping seat (23) so that the raised part (33) squeezes the elastic plate (5) to deform and arch reversely, and the elastic plate (5) arches and contacts the contact groove (253) to block between the brush plates (25).

10. A calender according to claim 5, characterized in that, The installation groove (232) is provided with a protruding groove (2321). The sliding seat (3) drives the brush plate (25) to move close to the flipping seat (23) so that the end of one of the brush plates (25) contacts the adhesive roller (24).

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