Rubber and plastic open milling equipment

Abstract

The invention relates to the technical field of open mills, and particularly discloses rubber and plastic rubber open milling equipment which comprises a rack, a roller I arranged on the rack and a roller II of which the axis and the roller I are positioned at the same height and are parallel to each other, the scraping mechanism comprises a third roller arranged on the rack, a scraping plate arranged on the front side of the third roller, a lifting part used for driving the third roller and the scraping plate to ascend and descend and a first driving part enabling the scraping plate to move in the left-right direction, and protection plates are arranged at the left end and the right end of the scraping plate correspondingly. The scraping plate firstly scrapes the left half section of the rubber and plastic on the first roller, so that the scraped rubber and plastic move along the scraping plate and are wound into a barrel under the guide of the third roller, and then the scraping plate and the third roller ascend towards the right rear part, so that the rubber and plastic wound into the barrel move rightwards and then fall into the gap; the invention has the beneficial effects that the additive is more uniformly dispersed on the surface of the rubber and plastic, and the processing efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of open mill technology, and more specifically to an open milling device for rubber and plastics. Background Technology

[0002] A rubber and plastics open mill is an open-type rubber mixing machine that mechanically processes rubber and plastic materials through two relatively rotating rollers. Its basic function is to utilize the shearing and extrusion forces generated by the speed difference between the rollers and the adjustable roller gap to achieve processes such as plasticizing raw rubber, mixing rubber compounds, and sheeting rubber. In the early stages of the rubber and plastics industry, the open mill served as the most basic rubber mixing machinery, providing a uniform compound with specific plasticity for subsequent vulcanization molding. Its structure typically includes a frame, rollers, transmission device, adjustable gap, and safety devices. The relative rotation of rollers with different speed ratios subjects the rubber and plastic to strong shearing and extrusion forces in the roller gap, thereby completing the plasticization of rubber and plastic, the dispersion and mixing of additives (such as vulcanizing agents, accelerators, reinforcing fillers, etc.), and the thermal refining and refining of the rubber compound. Although the open mill has been largely replaced in the core mixing function of large-scale production due to the widespread use of internal mixers, it still plays an irreplaceable role in rubber and plastic product manufacturing, laboratory research and development, and small and medium-sized enterprises because of its flexible operation, strong process visibility, suitability for small-batch multi-variety rubber processing, and special formulation debugging. It has unique advantages, especially in rubber refining, hot refining, and the processing of certain temperature-sensitive materials.

[0003] Chinese patent document CN223173328U discloses a rubber production open mill, including a worktable with four legs at the four corners of its lower surface. The upper surface of the worktable has two symmetrically distributed mounting boxes. Each mounting box has two symmetrically distributed guide grooves on its inner sides. Sliding seats are slidably mounted inside each guide groove. Open mill rollers are rotatably mounted between two adjacent sliding seats. A second motor is mounted on the left side of each sliding seat. The output shaft of the second motor is fixed to the adjacent open mill rollers via couplings. A first motor for driving the sliding seats is also mounted on the mounting boxes. A scraper for cleaning the open mill rollers is also located between the mounting boxes. After the rubber and plastic open milling is completed, the first motor drives the open mill rollers on both sides to be directly above the scraper, and then the scraper cleans the outer arc surface of the open mill rollers.

[0004] In the aforementioned technology, during the processing of rubber and plastics, additives are typically sprinkled manually between two open mill rolls by workers. Due to manual sprinkling, the additives tend to be too concentrated on the surface of the rubber and plastics, lacking dispersion. Furthermore, workers often sprinkle a large amount of additive onto the rubber and plastics at once, preventing the additives from being fully compressed into the rubber and plastics as they pass through the two open mill rolls. Consequently, the additives fall from between the two open mill rolls onto the receiving end below, or detach from the outer surface of the rubber and plastics and fall onto the receiving end below. This can even cause small pieces of rubber and plastics to fall off, requiring manual re-pouring of the additives from the receiving end back onto the rubber and plastics, thus affecting the efficiency of rubber and plastics processing. Summary of the Invention

[0005] This invention provides a rubber and plastics open mixing equipment, which aims to solve the problem in related technologies where manual spreading of materials leads to excessive concentration and insufficient dispersion of additives on the surface of rubber and plastics.

[0006] A rubber and plastics open mixing apparatus includes a frame, a first roller mounted on the frame, and a second roller with its axis at the same height as the first roller and parallel to it. A gap exists between the first roller and the second roller. The apparatus also includes: The scraping mechanism includes a third roller mounted on a frame, a scraper mounted on the front side of the third roller, a lifting component for driving the third roller and the scraper to rise and fall, and a driving component for moving the scraper in the left and right direction. The axis of the third roller is parallel to the axis of the first roller, and the third roller is located above the gap. Both ends of the scraper are equipped with guard plates. When the front end of the scraper comes into contact with the first roller, the scraper first scrapes off the left half of the rubber and plastic on the first roller, and the scraped rubber and plastic moves along the scraper and is rolled into a cylinder under the guidance of the third roller. Then the scraper and the third roller rise to the right and rear, so that the rolled rubber and plastic moves to the right and falls into the gap. Then the scraper descends and scrapes off the right half of the rubber and plastic on the first roller. The feeding mechanism includes a storage bin located above the roller and a spreading component located on the storage bin. The spreading component is used to spread the additive onto the rubber and plastic on the scraper.

[0007] Its effects are as follows: By setting scrapers above rollers one and two, the rubber and plastic on roller one are scraped off. Simultaneously, roller three is set on the scrapers, which can drive the scraped rubber and plastic to tumble forward, thus causing the scraped rubber and plastic to be rolled into a cylindrical shape on the scrapers. This achieves the tumbling of the rubber and plastic on both sides. When the cylindrical rubber and plastic enters the gap between rollers one and two, it can be squeezed again under the action of roller one. At this time, the cylindrical rubber and plastic can have both sides of the rubber and plastic squeezed together, improving the efficiency of rubber and plastic processing. Furthermore, by setting a feeding mechanism on roller one, additives can be sprinkled on the scraped rubber and plastic, and during the continuous rolling of the rubber and plastic into a cylindrical shape, the additives are continuously wrapped around the rubber. The internal design of the plastic prevents additives on the surface of the rubber and plastic from falling into the receiving part below when the rubber and plastic are squeezed through the gap between roller one and roller two. At the same time, it can improve the uniformity of additive distribution within the rubber and plastic, further improving the processing efficiency of rubber and plastic. When the scraper removes the rubber and plastic on roller one, it scrapes off the left or right half each time. By setting a guard plate on the scraper, the cylindrical rubber and plastic can be moved horizontally as the scraper moves in the left and right direction. This allows the left or right end of the cylindrical rubber and plastic to move closer to the center line of roller one in the left and right direction, thereby squeezing and mixing the left or right end of the cylindrical rubber and plastic with the middle part of the rubber and plastic, thus improving the processing efficiency of rubber and plastic.

[0008] Preferably, the lifting component includes a lead screw 1 rotatably mounted on the frame, a lead screw 2 rotatably mounted on the frame, a motor 1 connected to the output end of lead screw 1, and a motor 2 connected to the output end of lead screw 2. Lead screw 1 and lead screw 2 are located at the left and right ends of the drum 3, respectively. A mounting bracket is rotatably mounted on the drum 3. Lead screw 1 and lead screw 2 are both mounted on the mounting bracket, and the mounting bracket is threadedly engaged with lead screw 1 and lead screw 2. The axes of lead screw 1 and lead screw 2 are both at acute angles to the horizontal plane. Its effect is that by setting screws one and two on the mounting frame, both of which have acute angles between their axes and the horizontal plane, the roller three and the scraper can move backward while moving upward, thereby allowing the cylindrical rubber and plastic to fall into the gap between roller one and roller two.

[0009] Preferably, the drive component includes a lead screw three rotatably mounted on the mounting frame, a support rod fixedly mounted on the mounting frame, and a motor three whose output end is connected to the lead screw three. The axis of the lead screw three and the axis of the support rod are parallel and both extend in the left-right direction. The lead screw three and the support rod are both passed through the scraper, and the scraper and the lead screw three are threadedly engaged.

[0010] Preferably, a baffle is fixedly installed on the mounting bracket. The baffle is located on the lower side of the third roller, and the right end of the baffle abuts against the scraper to prevent the rubber and plastic above the gap from contacting the third roller.

[0011] Preferably, the guard plate is provided with a connecting rod, and the storage bin is fixedly installed on the connecting rod. The length of the storage bin in the left-right direction is less than the length of the scraper in the left-right direction.

[0012] Preferably, the material spreading component includes multiple augers rotatably installed in the storage bin and a second driving component for driving the augers to rotate. The storage bin has multiple discharge holes, and the multiple augers are respectively arranged in the multiple discharge holes.

[0013] Its effect is that by setting a spreading device above the roller, a uniform layer of additive can be spread on the surface of the rubber and plastic on the scraper, so that the additive can be wrapped inside the cylindrical rubber and plastic during the process of rolling the rubber and plastic on the scraper into a cylinder. By setting multiple discharge holes, the additive can be distributed more evenly on the surface of the rubber and plastic.

[0014] Preferably, the second driving component includes a fourth motor whose output end is connected to the auger, and the fourth motor is fixedly installed on the storage silo.

[0015] Preferably, the roller three is provided with a plurality of material-pushing plates, which are arranged in a circumferential array around the roller three. One end of the material-pushing plate is hinged to the roller three, and the rotation axis of the material-pushing plate extends in the left-right direction. An elastic element is provided between the material-pushing plate and the roller three. The elastic element is used to move the other end of the material-pushing plate away from the roller three. When the roller three rotates, when the material-pushing plate comes into contact with the scraper, it will deflect toward the axis of the roller three, so that the material-pushing plate passes over the scraper.

[0016] Its effect is as follows: By setting multiple material-pushing plates on roller three and setting elastic elements between the material-pushing plates and roller three, the material-pushing plates are pushed by the scraper when they pass the scraper during the rotation of roller three, thus storing force on the elastic elements. When the material-pushing plates pass the scraper, the elastic elements that have stored force on the material-pushing plates are released. With the release of the elastic elements, the material-pushing plates are ejected forward on roller three, thus pushing the rubber and plastic on the scraper forward, thereby enabling the rubber and plastic to be folded forward. As the scraper continues to scrape the rubber and plastic off roller one, the rubber and plastic gradually roll up into a cylindrical shape on the front side of the scraper, and the number of layers of the cylindrical rubber and plastic gradually increases. When the rubber and plastic is rolled into a cylindrical shape, the lower surface and the upper surface of the rubber and plastic will abut. When the multi-layered cylindrical rubber and plastic enter the gap between roller one and roller two, the lower surface and the upper surface of the cylindrical rubber and plastic are squeezed and mixed together, thereby achieving the flipping of the rubber and plastic.

[0017] Preferably, the front end of the scraper is provided with a wedge-shaped surface. When the rubber and plastic move upward along the wedge-shaped surface and come into contact with the roller, the elastic element is released when the feeding plate passes the scraper, causing the feeding plate to push the rubber and plastic forward.

[0018] Its effect is that by setting a wedge-shaped surface at the front end of the scraper, the rubber and plastic scraped from the first roller can move along the wedge-shaped surface until it comes into contact with the outer circumference of the third roller, and is then folded forward under the action of the third roller and the material feeding plate on it, and then rolled up to form a cylindrical rubber and plastic.

[0019] Preferably, the elastic element is a torsion spring.

[0020] By adopting the above technical solution, the beneficial effects of the present invention are as follows: 1. A scraper is installed above roller one and roller two to scrape off the rubber and plastic on roller one. At the same time, roller three is installed on the scraper to drive the scraped rubber and plastic to turn forward and roll it into a cylindrical shape on the scraper. This achieves the turning of the rubber and plastic on both sides. When the cylindrical rubber and plastic enters the gap between roller one and roller two, it will be squeezed again under the action of roller one. At this time, the cylindrical rubber and plastic can be squeezed on both sides, improving the processing efficiency of rubber and plastic. 2. After configuring the feeding mechanism on roller one, additives can be sprinkled on the surface of the scraped rubber and plastic. As the rubber and plastic are continuously wound into a cylindrical shape, the additives will be continuously wrapped inside the rubber and plastic. This can prevent the additives on the surface of the rubber and plastic from falling through the gap and into the receiving part below when the rubber and plastic are squeezed in the gap between roller one and roller two. At the same time, it can also improve the uniformity of the additive distribution inside the rubber and plastic, and further enhance the efficiency of rubber and plastic processing. 3. Multiple material-pushing plates are arranged on roller three, and elastic elements are installed between them and the material-pushing plates. When roller three rotates, the material-pushing plates are pushed by the scraper, thereby storing force on the elastic elements. Once the material-pushing plates pass the scraper, the stored force on the elastic elements is released, causing the material-pushing plates to pop forward on roller three, pushing the rubber and plastic on the scraper forward and causing the rubber and plastic to fold forward. As the scraper continuously scrapes the rubber and plastic off roller one, the rubber and plastic gradually rolls into a cylindrical shape in front of the scraper. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0022] Figure 2 This is a schematic diagram of the frame structure of the present invention.

[0023] Figure 3 This is a schematic diagram of the scraping mechanism of the present invention.

[0024] Figure 4 This is a front view of the scraping mechanism of the present invention.

[0025] Figure 5 This is a cross-sectional view of the scraping mechanism of the present invention.

[0026] Figure 6 for Figure 5 Enlarged view of point A in the middle.

[0027] Figure 7 This is a schematic diagram of the mounting bracket of the present invention.

[0028] Figure 8 This is a partial cross-sectional view of the storage silo of the present invention.

[0029] Figure 9 This is a schematic diagram of the material turning mechanism of the present invention.

[0030] Figure label: 1. Frame; 11. Track groove; 2. Roller 1; 3. Roller 2; 4. Drive motor; 5. Receiving component; 6. Scraping mechanism; 61. Roller 3; 611. Groove; 62. Mounting bracket; 63. Scraper; 64. Material feeding assembly; 641. Material feeding plate; 65. Lifting component; 651. Lead screw 1; 652. Motor 1; 66. Drive component 1; 661. Lead screw 3; 662. Support rod; 663. Motor 3; 67. Baffle; 68. Motor 5; 69. Guard plate; 7. Feeding mechanism; 71. Storage bin; 72. Connecting rod; 73. Screw; 74. Motor 4; 75. Gear 1; 76. Chain; 8. Tilting mechanism; 81. Slider; 82. Tilting component; 83. Tilting motor. Detailed Implementation

[0031] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] Example 1 like Figure 1As shown, an embodiment of the rubber and plastics mixing equipment of the present invention includes a frame 1, a first roller 2, a second roller 3, a drive motor 4, a receiving component 5, a scraping mechanism 6, and a feeding mechanism 7. The first roller 2 and the second roller 3 are both rotatably mounted on the frame 1. The axes of the first roller 2 and the second roller 3 extend in the left-right direction. The axis of the first roller 2 and the axis of the second roller 3 are at the same height and parallel to each other. There is a gap between the first roller 2 and the second roller 3 for the rubber and plastics to pass through. The drive motor 4 is fixedly mounted on the frame 1, and the output end of the drive motor 4 is connected to the input end of the first roller 2. The receiving component 5 is located below the first roller 2 and the second roller 3 and is used to receive small pieces of rubber and plastics and additives falling from the rubber and plastics. The scraping mechanism 6 is located above the gap between roller 2 and roller 3. It is used to scrape off the rubber and plastic on roller 2 and roll the scraped rubber and plastic into a cylindrical shape above roller 2. The rolled-up rubber and plastic then falls back into the gap between roller 2 and roller 3. The feeding mechanism 7 is located above roller 2 and is used to evenly sprinkle the additive on the surface of the scraped rubber and plastic. This ensures that after the scraped rubber and plastic is rolled into a cylinder, the additive is located inside the rubber and plastic, preventing the additive from falling off the surface of the rubber and plastic after passing through the gap between roller 2 and roller 3, or preventing the additive from falling from the gap between roller 2 and roller 3 onto the receiving part 5 below.

[0033] During the processing of rubber and plastic, the worker first places the rubber and plastic to be processed in the gap between roller 2 and roller 3. Then, the drive motor 4 is started to rotate roller 2 and roller 3. As roller 2 and roller 3 rotate, the rubber and plastic above the gap passes through the gap. After the rubber and plastic has circled roller 2 once, the scraping mechanism 6 first scrapes off the left half of the rubber and plastic on roller 2 and rolls the scraped rubber and plastic into a cylindrical shape, thereby realizing the flipping operation of the rubber and plastic on both sides. When the cylindrical rubber and plastic enters the gap between roller 2 and roller 3... Afterwards, under the continuous action of roller 2, the rubber and plastic material is again strongly squeezed. At this time, under the mechanical force of the roller, the cylindrical rubber and plastic material is evenly squeezed together on both sides, ensuring the density and uniformity of the rubber and plastic material. This significantly improves the overall efficiency of rubber and plastic processing, optimizes the production process, and enhances product quality. At the same time, the feeding mechanism 7 evenly sprinkles additives onto the surface of the scraped rubber and plastic material. During the process of rolling the rubber and plastic material into a cylindrical shape, as the rubber and plastic material is layered and rolled up, the various chemical additives added also... The rubber and plastic material is then tightly wrapped within its internal structure. This process effectively prevents additives adhering to the surface of the rubber and plastic from penetrating through the tiny gaps between rollers 2 and 3 during the rubber and plastic's movement. These gaps allow the additives to fall into the receiving part 5 below. Furthermore, this winding method significantly improves the uniformity of additive distribution within the rubber and plastic, ensuring that each layer of rubber and plastic receives sufficient additive penetration. This not only optimizes the intrinsic quality of the rubber and plastic but also greatly improves the overall efficiency of the rubber and plastic processing, making the production process smoother and more efficient. The scraping mechanism 6 moves the wound cylindrical rubber and plastic to the right and into the gap between rollers 2 and 3. Then, the scraping mechanism 6 scrapes the right half of the rubber and plastic on roller 2. After that, the cylindrical rubber and plastic is moved to the left and then into the gap between rollers 2 and 3 again. This process is repeated multiple times until the rubber and plastic processing is complete.

[0034] like Figures 2-8As shown, the scraping mechanism 6 includes a third roller 61, a mounting frame 62, a scraper 63, a feeding assembly 64, a lifting component 65, and a driving component 66. The axis of the third roller 61 is parallel to the axis of the first roller 2, and the third roller 61 is located above the gap. Two track grooves 11 are provided on the frame 1, and the two track grooves 11 are located on the left and right sides of the third roller 61, respectively. The mounting frame 62 is slidably installed in the track grooves 11 in a direction that gradually tilts backward from bottom to top. Support shafts are installed at both ends of the third roller 61, and both support shafts pass through the mounting frame 62. A baffle 67 is fixedly installed on the mounting frame 62. The baffle 67 is located on the lower side of the third roller 61, and the baffle 67... The right end of 7 abuts against scraper 63 to prevent the rubber and plastic above the gap from contacting roller 3 61. Motor 5 68 is fixedly installed on mounting frame 62. The output end of motor 5 68 is connected to the input end of roller 3 61. Scraper 63 is set on the front side of roller 3 61 and is slidably installed on mounting frame 62 in the left and right direction. Guard plates 69 are provided at both ends of scraper 63. The length of scraper 63 in the left and right direction is less than the length of roller 1 2 in the left and right direction. The front end of scraper 63 is provided with a wedge-shaped surface. Lifting component 65 is used to drive mounting frame 62 to move in track groove 11. Driving component 1 66 is used to drive scraper 63 to move in the left and right direction.

[0035] like Figures 3-8 As shown, the feeding assembly 64 includes a feeding plate 641 and an elastic element (not shown in the figure). Multiple grooves 611 are formed on the outer circumferential wall of the roller 61, arranged in a circular array around the axis of the roller 61. A hinge shaft is fixedly installed within each groove 611, extending along its left-right axis. The feeding plate 641 passes through the hinge shaft. The elastic element, a torsion spring, is disposed on both the feeding plate 641 and the roller 61. The torsion spring is sleeved on the hinge shaft, and its left-right direction is... Both ends are fixed to roller 61 and material guide plate 641 respectively. The torsion spring is used to keep the end of material guide plate 641 away from the hinge axis away from roller 61. When roller 61 drives material guide plate 641 to pass scraper 63, the end of material guide plate 641 away from the hinge axis deflects towards groove 611 in the direction of scraper 63. At the same time, the torsion spring is twisted and stores force. When material guide plate 641 passes scraper 63, the torsion spring is released and material guide plate 641 deflects outward from groove 611.

[0036] When processing rubber and plastic, after the front end of scraper 63 abuts against roller 2, scraper 63 first scrapes off the left half of the rubber and plastic on roller 2. At this time, the scraped rubber and plastic will move upward along the wedge-shaped surface of scraper 63. When the rubber and plastic comes into contact with roller 3 61, there is a gap between the end of the rubber and plastic in contact with roller 3 61 and scraper 63. After the material-pushing plate 641 passes over scraper 63, the material-pushing plate 641 springs outward from the groove 611 under the action of torsion spring. When the feeding plate 641 pops out and comes into contact with the rubber and plastic, since the rubber and plastic has not yet been rolled into a cylindrical shape, and the rubber and plastic on the scraper 63 is at the end of the rubber and plastic and is relatively light, the feeding plate 641 causes the end of the rubber and plastic to deflect forward when it comes into contact with the rubber and plastic after popping out. As the rubber and plastic scraped off on the roller 2 continues to move upward along the scraper 63, the scraped rubber and plastic is continuously rolled up under the combined action of the roller 3 61 and the feeding plate 641.

[0037] After multiple layers of rubber and plastic are wound on scraper 63, lifting component 65 drives roller 3 61 and scraper 63 to move backward and upward. At the same time, driving component 1 66 drives scraper 63 to move to the right. At this time, guard plate 69 on scraper 63 will drive the rubber and plastic wound into a cylindrical shape on scraper 63 to move to the right a certain distance until scraper 63 moves above the cylindrical rubber and plastic. The cylindrical rubber and plastic falls into the gap between roller 1 2 and roller 2 3. Then lifting component 65 drives roller 3 61 and scraper 63 to move forward and downward until scraper 63 comes into contact with roller 1 2 and scrapes off the right half of rubber and plastic on roller 1 2. After multiple layers of rubber and plastic are wound on scraper 63, lifting component 65 drives roller 3 61 and scraper 63 to move backward and upward. At the same time, driving component 1 66 drives scraper 63 to move to the left. Then the above process is repeated.

[0038] like Figures 2-7 As shown, the lifting component 65 includes a lead screw 651, a lead screw 2 (not shown in the figure), a motor 652, and a motor 2 (not shown in the figure). The lead screw 651 and the lead screw 2 are respectively arranged on the left and right sides of the roller 61, and the axes of the lead screw 651 and the lead screw 2 are both at acute angles to the horizontal plane. The lead screw 651 and the lead screw 2 are respectively rotatably installed in two track grooves 11. The motor 652 and the motor 2 are both fixedly installed on the frame 1. The output end of the motor 652 is connected to the lead screw 651, and the output end of the motor 2 is connected to the lead screw 2. The left and right ends of the mounting bracket 62 are respectively threaded through the lead screw 1 and the lead screw 2, and the mounting bracket 62 is threadedly engaged with the lead screw 651 and the lead screw 2.

[0039] like Figures 3-7As shown, the drive component 66 includes a lead screw 661, a support rod 662, and a motor 663. The lead screw 661 is rotatably mounted on the mounting bracket 62, and the support rod 662 is fixedly mounted on the mounting bracket 62. The axis of the lead screw 661 and the axis of the support rod 662 are parallel and both extend in the left-right direction. The lead screw 661 and the support rod 662 are both passed through the scraper 63. The scraper 63 and the lead screw 661 are threadedly engaged. The output end of the motor 663 is connected to the lead screw 661.

[0040] like Figures 3-8 As shown, the feeding mechanism 7 includes a storage bin 71 and a spreading component. Both guard plates 69 of the scraper 63 have connecting rods 72 extending upwards. The storage bin 71 is fixedly installed on the connecting rods 72. The length of the storage bin 71 in the left-right direction is less than the length of the scraper 63 in the left-right direction. The spreading component is set inside the storage bin 71 and is used to discharge the additive from the storage bin 71 and spread it on the rubber and plastic on the scraper 63.

[0041] After the rubber and plastic on roller 12 is scraped off by scraper 63, the spreading component discharges the additive in storage bin 71 and spreads it evenly on the scraped rubber and plastic. When motor 1 652 and motor 2 start at the same time and drive the mounting frame 62 to move in the track groove 11, the spreading component stops spreading. When scraper 63 comes into contact with roller 12, the spreading component starts spreading.

[0042] As shown in the figure, the feeding component includes multiple augers 73 and a driving component 2. Multiple vertically penetrating discharge holes are opened in the storage bin 71. The multiple augers 73 are rotatably installed in the multiple discharge holes. The driving component is used to drive the augers 73 to rotate, thereby uniformly discharging the additives in the storage bin 71 from the discharge holes.

[0043] like Figure 8 As shown, the driving component 2 includes a motor 74 and multiple gears 75. The upper end of the auger 73 extends upward with a rotating shaft. The multiple gears 75 are respectively fixedly installed on the upper ends of the multiple rotating shafts. The motor 74 is fixedly installed on the storage bin 71, and the output end of the motor 74 is provided with a gear 2 (not shown in the figure). The storage bin 71 is provided with an annular chain 76. The chain 76 meshes with the multiple gears 75 and the gear 2 at the same time. After the motor 74 is started, it drives the gear 2 to rotate. When the gear 2 rotates, it drives the multiple gears 75 to rotate synchronously through the chain 76.

[0044] The specific working principle of the rubber and plastics open mixing equipment of the present invention: During the processing of rubber and plastic, the worker first places the rubber and plastic to be processed in the gap between roller 2 and roller 3. Then, the drive motor 4 is started to rotate roller 2 and roller 3. As roller 2 and roller 3 rotate, the rubber and plastic above the gap passes through the gap. After the rubber and plastic has circled roller 2 once, the front end of scraper 63 comes into contact with roller 2. Scraper 63 first scrapes off the left half of the rubber and plastic on roller 2. At this time, the scraped rubber and plastic will move upward along the wedge-shaped surface of scraper 63. When the rubber and plastic comes into contact with roller 3 61, the end of the rubber and plastic in contact with roller 3 61 comes into contact with scraper 63. There is a gap between them. When the feeding plate 641 passes the scraper 63, the feeding plate 641 is ejected outward from the groove 611 under the action of the torsion spring. After the feeding plate 641 is ejected and comes into contact with the rubber and plastic, since the rubber and plastic has not yet been rolled into a cylindrical shape, and the rubber and plastic on the scraper 63 is at the end of the rubber and plastic and is relatively light, the feeding plate 641 causes the end of the rubber and plastic to deflect forward when it comes into contact with the rubber and plastic after being ejected. As the rubber and plastic scraped off on the roller 12 continues to move upward along the scraper 63, the scraped rubber and plastic is continuously rolled up under the combined action of the roller 33 and the feeding plate 641.

[0045] After the rubber and plastic on scraper 63 is wound into multiple layers, motors 652 and 663 rotate forward, driving screws 651 and 651 to rotate respectively. This causes the mounting bracket 62 to move backward and upward, which in turn causes roller 61 and scraper 63 to move backward and upward. At the same time, motor 663 rotates forward, driving screw 661 to rotate. Screw 661's rotation causes scraper 63 to move to the right. At this time, the guard plate 69 on scraper 63 will cause the rubber and plastic wound into a cylindrical shape on scraper 63 to move to the right a certain distance. During this process, since scraper 63 is still moving backward and upward, after scraper 63 gradually moves above the cylindrical rubber and plastic, the cylindrical rubber and plastic falls into the gap between roller 2 and roller 3 under the action of gravity. Then motor 652... Motors 652 and 663 reverse their rotations, causing lead screws 651 and 651 to rotate in the opposite direction. This moves the mounting frame 62 forward and downward, which in turn moves roller 61 and scraper 63 forward and downward until scraper 63 comes into contact with roller 2, scraping off the right half of the rubber and plastic on roller 2. After multiple layers of rubber and plastic are wound up on scraper 63, motors 652 and 663 rotate forward again, causing lead screws 651 and 651 to rotate forward. This moves the mounting frame 62 backward and upward, again moving roller 61 and scraper 63 backward and upward. At the same time, motor 663 reverses its rotation, causing lead screw 661 to rotate in the opposite direction, which moves scraper 63 to the left. This process is repeated multiple times until the rubber and plastic processing is complete.

[0046] Example 2 like Figure 1 and Figure 9As shown, an embodiment of the rubber and plastics mixing equipment of the present invention includes a frame 1, a first roller 2, a second roller 3, a drive motor 4, a receiving component 5, a scraping mechanism 6, and a feeding mechanism 7. It also includes two sets of tilting mechanisms 8 disposed above the first roller 2. Each tilting mechanism 8 includes a slider 81, a tilting component 82, and a tilting motor 83. The slider 81 is slidably mounted on the frame 1 in a left-right direction. The tilting component 82 is rotatably mounted on the slider 81. The output end of the tilting motor 83 is connected to the tilting component 82 to drive its rotation. The tilting component 82 has a larger upper end and a smaller lower end. A lead screw 5 (not shown in the figure) and a motor 4 (not shown in the figure) are provided on the frame 1. The slider 81 passes through the lead screw 5, and the slider 81 is threadedly engaged with the lead screw 5. The output end of the motor 4 is connected to the lead screw 5. During tilting, the slider 81 on the left side moves first to the middle of the first roller 2, while the tilting component 82... The left end of the rubber and plastic material on the surface of roller 2 is folded towards the center of roller 2. The left slider 81 moves to the center of roller 2 and then moves in the opposite direction and resets. Then the right slider 81 moves towards the center of roller 2, while the right end of the rubber and plastic material on the surface of roller 2 is folded towards the center of roller 2. The right slider 81 moves to the center of roller 2 and then moves in the opposite direction and resets. The above process is repeated to achieve the flipping of the rubber and plastic material on the surface of roller 2.

[0047] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A rubber and plastic open mixing apparatus, comprising a frame (1), a first roller (2) mounted on the frame (1), and a second roller (3) whose axis is at the same height as the first roller (2) and parallel to each other, wherein a gap exists between the first roller (2) and the second roller (3), characterized in that, Also include: Scraping mechanism (6), including the setting on the rack (1) on the drum three (61), the setting on the front side of the drum three (61) of the scraper (63), for driving the drum three (61) and the scraper (63) lifting lifting piece (65) and make the scraper (63) along the left and right direction movement drive piece one (66), the axis of the drum three (61) and the axis of the drum one (2) are parallel, and the drum three (61) is located above the gap, the left and right ends of the scraper (63) are fixedly installed with the guard plate (69), when the lower end of the scraper (63) is in contact with the drum one (2), the scraper (63) first scrapes the left half of the rubber plastic on the drum one (2), and the scraped rubber plastic is moved along the scraper (63) and wound into a cylinder under the guidance of the drum three (61), then the scraper (63) and the drum three (61) are raised to the right rear, so that the wound rubber plastic moves to the right and falls into the gap, and then the scraper (63) is lowered and the right half of the rubber plastic on the drum one (2) is scraped; The feeding mechanism (7) comprises a storage bin (71) arranged above the drum one (2) and a scattering member arranged on the storage bin (71), and the scattering member is used for scattering additives on the rubber plastic on the scraper (63).

2. A rubber and plastic mill as claimed in claim 1, wherein, The lifting piece (65) comprises a lead screw one (651) rotatably installed on the rack (1), a lead screw two rotatably installed on the rack (1), a motor one (652) with an output end connected with the lead screw one (651), and a motor two with an output end connected with the lead screw two, the lead screw one (651) and the lead screw two are respectively located at the left and right ends of the drum three (61), a mounting bracket (62) is rotatably installed on the drum three (61), the lead screw one (651) and the lead screw two are arranged on the mounting bracket (62), and the mounting bracket (62) is in threaded engagement with the lead screw one (651) and the lead screw two, the axis of the lead screw one (651) and the lead screw two is acute with the horizontal plane.

3. A rubber and plastics mill as claimed in claim 2, wherein, The drive piece one (66) comprises a lead screw three (661) rotatably installed on the mounting bracket (62), a support rod (662) fixedly installed on the mounting bracket (62), and a motor three (663) with an output end connected with the lead screw three (661), the axis of the lead screw three (661) and the axis of the support rod (662) are parallel and extend along the left and right directions, the lead screw three (661) and the support rod (662) are arranged on the scraper (63), and the scraper (63) is in threaded engagement with the lead screw three (661).

4. A rubber and plastic mill as claimed in claim 2, wherein, The mounting bracket (62) is fixedly installed with a baffle (67), the baffle (67) is arranged on the lower side of the drum three (61), and the right end of the baffle (67) is in contact with the scraper (63), so as to avoid the contact between the rubber plastic above the gap and the drum three (61).

5. A rubber and plastic mill as claimed in claim 1, wherein, The guard plate (69) is provided with a connecting rod (72), the storage bin (71) is fixedly installed on the connecting rod (72), and the length of the storage bin (71) in the left and right directions is less than the length of the scraper (63) in the left and right directions.

6. A rubber and plastic mill as defined in claim 1, wherein The material spreading component includes multiple augers (73) rotatably installed in the storage bin (71) and a driving component for driving the augers (73) to rotate. The storage bin (71) has multiple discharge holes, and the multiple augers (73) are respectively installed in the multiple discharge holes.

7. A rubber and plastics mill as claimed in claim 6, wherein The second driving component includes a fourth motor (74) whose output end is connected to the auger (73), and the fourth motor (74) is fixedly installed on the storage bin (71).

8. An apparatus as claimed in claim 1, wherein, The roller three (61) is provided with a plurality of material-pulling plates (641), which are arranged in a circular array around the roller three (61). One end of the material-pulling plate (641) is hinged to the roller three (61), and the rotation axis of the material-pulling plate (641) extends in the left and right direction. An elastic element is provided between the material-pulling plate (641) and the roller three (61). The elastic element is used to make the other end of the material-pulling plate (641) move away from the roller three (61). When the roller three (61) rotates, when the material-pulling plate (641) comes into contact with the scraper (63), it will deflect toward the axis of the roller three (61), so that the material-pulling plate (641) passes over the scraper (63).

9. An apparatus as claimed in claim 8, wherein, The front end of the scraper (63) is provided with a wedge-shaped surface. When the rubber and plastic moves upward along the wedge-shaped surface and comes into contact with the roller (61), the elastic element is released when the pusher plate (641) passes over the scraper (63), causing the pusher plate (641) to push the rubber and plastic forward.

10. A rubber and plastic mixing and rolling apparatus according to claim 8, wherein The elastic element is a torsion spring.

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