Rubber material mixing and opening integrated machine and method thereof

Abstract

This invention relates to the field of rubber production technology, specifically to an integrated internal mixing and open milling machine and its method for rubber materials. The integrated internal mixing and open milling machine of this invention includes a base, a mixing section, and an open milling section. The mixing section and the open milling section are integrated and installed on the top of the base. The open milling section includes two side frames located on the top of the base, with two rollers positioned between the two side frames. A cutting component for automatically cutting the rubber material after open milling and a transfer component for transferring the mixed rubber material between the two rollers for further open milling are also provided between the two side frames. The internal mixing and open milling method of this invention includes mixing, transfer, open milling, and cutting. By integrating the mixing section and the open milling section together, and cleverly integrating the transfer component for transferring the mixed material between the two side frames, the equipment's floor space is reduced. Furthermore, the material can be automatically cut into segments during the open milling process, reducing the intensity of manual operation.

Description

Technical Field

[0001] This invention relates to the field of rubber production technology, specifically to an integrated internal mixing and open mixing machine and method for rubber materials. Background Technology

[0002] An open mill is a continuous, two-roll plasticizing and mixing machine. Its main function is to extrude, shear, and mix materials through two counter-rotating rollers to achieve plasticization, uniform mixing, and calendering. It is one of the basic pieces of equipment in the leather and rubber industries.

[0003] The prior art discloses Chinese Patent No. CN 110281412 B: an open mill, which discloses a fixed frame and a cutter and multiple guide wheels set on the lower surface of the fixed frame. It also discloses a rotating component, which replaces manual operation by using the cutter to cut sheet rubber and using the guide wheels to roll the sheet rubber. The rotating component drives the turntable to rotate and change the cutting angle, thereby adjusting the time and number of times different rubber materials are rolled.

[0004] However, the aforementioned existing technology still has certain drawbacks. In the process of cutting and unloading the rubber compound, it is not possible to cut the rubber compound in one go, and there is a tendency for some parts to remain uncut, which affects the cutting and unloading of the rubber compound after it has been mixed. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated internal mixing and open milling machine and method for rubber materials, so as to solve the problems mentioned in the background art.

[0006] The objective of this invention can be achieved through the following technical solutions: A rubber material internal mixing and open milling integrated machine includes a base, an internal mixing section and an open milling section. The internal mixing section and the open milling section are integrated and installed on the top of the base. The open milling section includes two side frames fixedly installed on the top of the base, and two rollers rotating in opposite directions are provided between the two side frames. Between the two side frames, there is also a cutting component for automatically cutting the rubber material after open mixing and a transfer component for transferring the rubber material after internal mixing to the two rollers for open mixing processing.

[0007] In a preferred embodiment, the mixing section includes a mixing chamber fixed to the top of the base and two opposing supports. A lifting door is installed at the feed inlet of the mixing chamber. The supports are located near the mixing section. A discharge hopper is movably installed on one side of the mixing chamber. A pair of counter-rotating rotors are installed inside the discharge hopper. A straight bar is rotatably installed between the two supports via a rotating rod. The straight bar is fixed to the outside of the discharge hopper.

[0008] In a preferred embodiment, each of the two side frames is provided with a frame groove, the two frame grooves are arranged opposite to each other, and a seat block is slidably installed inside each of the two frame grooves. One roller is rotatably installed at the center position between the two seat blocks, and the other roller is rotatably installed between the two side frames. A servo motor is fixedly installed on one side of each of the two side frames. The output shaft end of the servo motor is fixedly provided with a screw that movably passes through the corresponding frame groove. The two seat blocks are respectively threaded onto the outside of the corresponding screw.

[0009] In a preferred embodiment, the cutting assembly includes two scrapers disposed between the opposite sides of two side frames. The two scrapers are slidably sleeved on the outer sides of both ends of the roller. Each scraper consists of a left end plate and a right end plate. An insert plate is fixedly provided on the side of the left end plate facing the right end plate. A slot is opened on the side of the right end plate that is directly opposite the insert plate. The insert plate is movably inserted into the corresponding slot. An elastic cloth is fixedly connected between the opposite sides of the left end plate and the right end plate constituting the scraper. A horizontal plate is fixed between the two side frames. A vertical rod is movably inserted through both ends of the horizontal plate. A circular plate and a lifting frame are fixed at the top and bottom of the two vertical rods, respectively. A spring is fitted on the outer side of the upper end of each of the two vertical rods to fix and connect the circular plate and the horizontal plate. A buffer rubber sleeve is fixed on the outer side of the lower end of each of the two vertical rods. A power component for driving the lifting frame to rise and fall is also provided between the two side frames.

[0010] In a preferred embodiment, the power component includes a second servo motor fixedly mounted on the top of the horizontal plate and an L-shaped bar fixedly mounted on the top of the two left end plates. The output shaft of the second servo motor is fixedly provided with a toothed disc at one end through the horizontal plate. The two L-shaped bars are arranged symmetrically about the central axis of the toothed disc. Each of the two L-shaped bars is fixedly provided with a toothed bar that meshes with the toothed disc on one side opposite to the other. Two L-shaped bars are each fixed with a trapezoidal block on one side of each other. Two triangular blocks are fixed on the top of the lifting frame, which are directly opposite the trapezoidal blocks. One end of each L-shaped bar is provided with an insertion hole. A crossbar is fixed on the inner side of each side frame, with one end movably inserted into the corresponding insertion hole. A spring is sleeved on the outer side of the crossbar to fix and connect the side frame and the corresponding L-shaped bar.

[0011] In a preferred embodiment, a through groove is provided through the middle of one side of the lifting frame. A swing bar is rotatably installed inside the through groove via a rotating rod. A pressure bar is fixedly connected to the bottom of one end of the swing bar that extends into the lifting frame. A slot is provided on the top of both left end plates, and an arc strip is fixedly provided on the inner side of both left end plates at the edge of the corresponding slot. Guide grooves are provided at the two edges on both sides of the inner cavity of the lifting frame. Vertical rods are fixedly installed inside the guide grooves. Lifting bars are movably sleeved between the two sets of vertical rods in the two sets of guide grooves that are arranged opposite each other. Cutters are fixedly installed at the bottom of the two lifting bars. Springs are sleeved on the outside of each vertical rod. One set of springs in the two sets of guide grooves that are arranged opposite each other is fixedly connected to the springs at the top of the inner side of the lifting bar and the springs at the top of the inner side of the guide groove. The other set of springs in the two sets of guide grooves that are arranged opposite each other is fixedly connected to the lifting bar and the bottom of the inner side of the guide groove. The middle of the outer side of the lifting frame is fixedly provided with a second ear plate, and the middle of one side of one of the lifting bars is fixedly provided with a first ear plate. The top of the first ear plate is fixedly provided with a third vertical rod that moves through the second ear plate. The top of the third vertical rod is fixedly provided with a top head. The outside of the third vertical rod is fitted with a return spring that fixes the second ear plate and the top head. An auxiliary unloading assembly is provided between the side frames. The auxiliary unloading assembly consists of a guide frame fixed to the outside of one side cutter and an unloading frame fixed between the two side frames.

[0012] In a preferred embodiment, the transfer assembly includes a frame located between two side frames and a cylinder fixed to the top of the base. Straight plates are fixed between the two sides of the frame and the corresponding side frames. A sleeve frame is fixed to the inner side of the frame. A lifting block that is movably sleeved between the sleeve frame and the inner side of the frame is fixedly connected to the telescopic end of the cylinder.

[0013] In a preferred embodiment, the transfer assembly further includes a sinkhole at the top of the frame, a swing plate 1 is installed inside the sinkhole, a top plate is provided inside the frame, a through slot 2 is provided on the side of the frame facing the lifting block, a connecting plate that is fixedly connected to the lifting block and the top plate is movably passed through the through slot 2, and a Y-shaped frame is fixedly provided on the side of the frame away from the lifting block. The frame has slots on both sides of its inner cavity, and clamps are movably fitted inside each slot. Slide grooves are provided on opposite sides of each clamp, and slide seats are slidably connected inside each slide groove. A crossbar is fixedly connected to one end of the slide seat. An L-shaped frame fixedly connected to the outside of the crossbar is movably fitted on the outside of the crossbar. A trapezoidal block is fixedly fitted to one end of the crossbar, and a spring four fixedly connected to the trapezoidal block and the L-shaped frame is fitted on the outside of the crossbar. Both sides of the frame are provided with through slots that communicate with the inner cavity of the sleeve frame. Both sides of the top plate are fixed with connecting strips that are movably inserted into the corresponding through slots. One end of each of the two connecting strips is fixedly connected with an L-shaped strip that fits against the outside of the frame. One end of the L-shaped strip is fixedly provided with a trapezoidal block that is directly opposite to the corresponding trapezoidal block.

[0014] In a preferred embodiment, an adjustment assembly is provided at the top of the base between the two rollers. The adjustment assembly includes a cylinder two fixed to the top of the base and two uprights. An inclined base plate is fixed between the top surfaces of the two uprights. A notch is opened at the bottom of the base plate. A swing plate two is rotatably installed inside the notch through a rotating rod. A spring sheet is fixed on one side of the base plate. The telescopic end of the cylinder two is fixedly provided with a support, and a ball is rolled and embedded on the top of the support. A connecting rod is fixedly connected between the ball and the swing plate two.

[0015] The present invention also provides a method for internal mixing and milling of rubber materials using the above-mentioned integrated internal mixing and milling machine, which specifically includes the following operating steps: S1. Internal mixing: Open the door of the internal mixing chamber, put the mixed raw materials into the unloading hopper, and use a pair of oppositely rotating rotors to fully mix the raw materials under closed conditions. S2, Transfer: After the mixing is completed, an external power source is used to drive the straight bar to flip and drive the unloading hopper to rotate and open, so that the mixed material falls onto the transfer component, and the transfer component transports the material to the area between the two rollers. S3, Opening mill: The distance between the two rollers is adjusted in advance according to the opening mill requirements. After the mixed material falls between the two rollers, the two rollers rotating in opposite directions are used to carry out the opening mill operation by adjusting the coordination of the components. S4. Cutting: After the open mill is completed, the rotating toothed disc drives the two L-shaped strips to move the two scrapers in opposite directions, so that the material at the edge moves closer to the center. At the same time, it drives the two cutters to complete the segmented cutting of the material.

[0016] The beneficial effects of this invention are: 1. This invention integrates the mixing section and the open milling section together, and cleverly integrates the transfer component for transferring the mixed material between the two side frames, thereby reducing the equipment's floor space. Furthermore, the cutting component can automatically complete the segmented cutting and unloading of the material during the open milling process, reducing the intensity of manual operation. 2. The present invention can use a transfer component to gather the protruding corners of irregularly shaped materials that have been discharged from the internal mixing process towards the center of gravity of the material, thereby simultaneously pushing the material upward and simultaneously completing the shaping process of the material, making the material shape more regular, so that it can roll down along the frame to the position between the two rollers for open mixing. 3. By setting an adjustment component between the two rollers, the present invention can not only prevent materials from adhering to the surface of the slow-speed rollers, but also push the support to move up and down according to the needs of the open mill by the second cylinder, and adjust the tilt angle of the second swing plate by the constraint of the connecting rod and the ball. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a schematic diagram of the overall structure of the present invention from a first-view perspective; Figure 2 This is a schematic diagram of the overall structure of the invention from a second perspective; Figure 3 This is a schematic diagram of the unloading state structure of the mixing section of the present invention; Figure 4 This is a first-view structural schematic diagram of the transfer component of the present invention; Figure 5 This is a schematic diagram of the transfer component of the present invention from a second perspective; Figure 6 This is a schematic cross-sectional view of the transfer component of the present invention; Figure 7 This is the present invention. Figure 6 Enlarged schematic diagram of section A in the middle; Figure 8 This is a schematic diagram of the cutting component structure of the present invention; Figure 9 This is a schematic diagram of the cross-sectional structure of the cutting component of the present invention; Figure 10 This is the present invention. Figure 9 Enlarged schematic diagram of section B; Figure 11 This is a schematic diagram of the unloading rack structure of the present invention; Figure 12 This is a schematic diagram of the first-view structure of the adjustment component of the present invention; Figure 13 This is a schematic diagram of the second perspective structure of the adjustment component of the present invention.

[0018] The attached diagram is labeled as follows: 1. Base; 2. Mixing section; 21. Mixing chamber; 22. Discharge hopper; 23. Rotor; 24. Support; 25. Straight bar; 26. Bin door; 3. Open mixing section; 31. Side frame; 32. Cutting assembly; 321. Scraper; 322. Horizontal plate; 323. Lifting frame; 324. Vertical rod one; 325. Circular plate; 326. Spring one; 327. Buffer sleeve; 3 28. L-shaped bar 1; 329. Trapezoidal block 1; 3210. Triangular block; 3211. Rack; 3212. Gear plate; 3213. Swivel bar; 3214. Pressure bar; 3215. Arc bar; 3216. Guide groove; 3217. Vertical bar 2; 3218. Spring 2; 3219. Lifting bar; 3220. Cutter; 3221. Ear plate 1; 3222. Ear plate 2; 3223. Vertical bar 3224. Crossbar 1; 3225. Spring 3; 33. Transfer assembly; 331. Frame; 332. Straight plate; 333. Sleeve frame; 334. Cylinder 1; 335. Sinking groove; 336. Y-shaped frame; 337. Swing plate 1; 338. Lifting block; 339. Top plate; 3310. Connecting plate; 3311. Clamping plate; 3312. Slide seat; 3313. L-shaped frame; 3314. Through-hole 3315, L-shaped bar 2; 3316, trapezoidal block 2; 3317, trapezoidal block 3; 3318, crossbar 2; 3319, spring 4; 34, adjusting assembly; 341, upright frame; 342, cylinder 2; 343, base plate; 344, swing plate 2; 345, spring; 346, support; 347, ball; 348, connecting rod; 35, roller; 4, unloading rack; 5, guide rack. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The integrated mixing and open mixing machine of the present invention is one of the basic equipment in the leather and rubber industries. It is used to fully mix and plasticize rubber materials, and the rubber products produced are widely used in various aspects of industry and life. Example

[0021] Refer to the instruction manual appendix Figures 1-2 and Figure 8 The present invention provides a rubber material internal mixing and open milling integrated machine, including a base 1, an internal mixing section 2 and an open milling section 3. The internal mixing section 2 and the open milling section 3 are integrated and installed on the top of the base 1. The open milling section 3 includes two side frames 31 fixedly installed on the top of the base 1, and two rollers 35 rotating in opposite directions are provided between the two side frames 31. Between the two side frames 31, there is also a cutting component 32 for automatically cutting the rubber material after open mixing and a transfer component 33 for transferring the rubber material after internal mixing to the two rollers 35 for open mixing processing.

[0022] It should be noted that by integrating the mixing section 2 and the open mixing section 3 together, and by cleverly integrating the transfer component 33 for transferring the mixed material between the two side frames 31, the present invention reduces the floor space of the equipment. Furthermore, it can automatically complete the segmented cutting of the material during the open mixing process, reducing the intensity of manual operation.

[0023] Specifically, such as Figure 1 and Figure 3 As shown, the mixing section 2 includes a mixing chamber 21 fixed to the top of the base 1 and two opposing supports 24. A lifting door 26 is installed at the feed inlet of the mixing chamber 21. The door 26 can be driven to lift by an electric push rod installed on the outside of the mixing chamber 21. The electric push rod is a model HB-DJ801. The supports 24 are located near the open mixing section 3. A discharge hopper 22 is movably embedded on one side of the mixing chamber 21. A pair of rotors 23 rotating in opposite directions are installed inside the discharge hopper 22. The two rotors 23 have slightly different rotational speeds and there is a constant speed ratio between the rotors 23 and between the rotors 23 and the inner wall of the mixing chamber 21. The outer wall of the mixing chamber 21 has a cooling (heating) jacket to heat and cool the material and accelerate the mixing. The two rotors 23 are driven by a gearbox at one end. One of the rotors 23 is driven to rotate by a motor installed on the outside of the discharge hopper 22. In addition, during the mixing process, pressure can be applied by a pressing component (not shown in the figure, as it is prior art and will not be described again) installed inside the mixing chamber 21 to ensure that the material is fully mixed and plasticized in the mixing chamber 21. A straight bar 25 is rotatably installed between the two supports 24 via a rotating rod. The straight bar 25 is fixed on the outside of the discharge hopper 22 and is driven to rotate by a motor installed on the outside of one of the supports 24.

[0024] It should be noted that during the mixing of the mixed target raw materials, the silo door 26 is first opened and the mixed target raw materials are put into the mixing chamber 21. Then the silo door 26 is closed, the motor is started to drive the rotor 23 to rotate in opposite directions, and with the cooperation of the pressing component, the material is fully mixed. After the mixing is completed, the motor at the corresponding position is started to drive the straight bar 25 to rotate, thereby causing the unloading hopper 22 to flip, so that the mixed material falls onto the transfer component 33 and is transported to the open mill station. It should be noted that during the unloading process, the rotor 23 always keeps rotating, while the pressing component returns to the initial position to wait for the next round of mixing.

[0025] Specifically, such as Figures 1-2 As shown, each of the two side frames 31 has a frame groove, which is arranged opposite to each other. A seat block is slidably installed inside each frame groove. A limiting groove is provided at the top and bottom of the inner side of the frame groove. A limiting block is fixedly provided on the outer side of the seat block and slidably connected to the corresponding limiting groove to ensure that the seat block moves stably inside the frame groove. One roller 35 is rotatably installed at the center position between the two seat blocks, and the other roller 35 is rotatably installed between the two side frames 31. A servo motor is fixedly installed on one side of each of the two side frames 31. The servo motor is a servo driver of model JSMA-PUC02D. A screw rod is fixedly provided at the end of the output shaft of the servo motor and moves through the corresponding frame groove. The two seat blocks are respectively threaded onto the outer side of the corresponding screw rod. The two rollers 35 are driven to rotate by motors fixedly installed on the outer side of the side frame 31 and the outer side of the corresponding seat block, respectively.

[0026] It should be noted that before the open milling process, the staff can adjust the distance between the two rollers 35 according to the material's open milling requirements. This is achieved by controlling the two drive motors to synchronously drive the corresponding screws to rotate. The rotating screws drive the seat block to move laterally along the screw's axis, thereby adjusting the distance between the two rollers 35. After adjusting the distance, the speed ratio of the two opposing rollers 35 should also be adjusted to ensure the material's open milling effect.

[0027] Specifically, such as Figure 1 and Figures 4-7 As shown, the transfer assembly 33 includes a frame 331 located between two side frames 31 and a cylinder 334 fixed to the top of the base 1. The cylinder 334 is a single-acting cylinder of model DSA25N200. Straight plates 332 are fixed between the two sides of the frame 331 and the corresponding side frames 31. A U-shaped sleeve frame 333 is fixed inside the frame 331. A lifting block 338 is fixedly connected to the telescopic end of the cylinder 334 and is movably sleeved between the sleeve frame 333 and the inner side of the frame 331. The upper surface of the unloading end of the frame 331 is an inclined surface that slopes downward in the unloading direction. The upper surfaces of the sleeve frame 333 and the lifting block 338 are both set as inclined surfaces with the same inclination direction and slope as the inclined surface on the frame 331. The transfer assembly 33 also includes a recessed groove 335 at the top of the sleeve frame 333. A swing plate 337 is installed inside the recessed groove 335. When the swing plate 337 is embedded in the recessed groove 335, the upper surface of the swing plate 337 is exactly coplanar with the upper surface of the sleeve frame 333. The sleeve frame 333 has a top plate 339 inside. A through groove 2 is opened on the side of the sleeve frame 333 facing the lifting block 338. A connecting plate 3310 that is fixedly connected to the lifting block 338 and the top plate 339 passes through the through groove 2. A Y-shaped frame 336 is fixedly provided on the side of the sleeve frame 333 away from the lifting block 338. The Y-shaped frame 336 can be used to provide auxiliary support for the swing plate 337 in the initial state, so as to avoid the impact of the falling material directly impacting the swing plate 337. The top of the sleeve frame 333 is provided with a through groove for the top plate 339 to pass through. When the connecting plate 3310 is at the bottom of the through groove 2, the top surface of the top plate 339 is exactly coplanar with the inner inclined surface of the sink trough 335. Both sides of the inner cavity of frame 331 are provided with slots, and clamping plates 3311 are movably fitted into each slot. Sliding grooves are provided on opposite sides of the two clamping plates 3311, and sliding blocks 3312 are slidably connected to each sliding block 3312. A crossbar 3318 is fixedly connected to one end of the sliding block 3312. An L-shaped frame 3313, which is fixedly connected to the outside of frame 331, is movably fitted onto the outside of the crossbar 3318. A trapezoidal block 3317 is fixedly fitted to one end of the crossbar 3318, and a corresponding trapezoidal block 3317 and L-shaped frame are fixedly fitted onto the outside of the crossbar 3318. Spring 3319 of 3313, wherein the end of the slide groove and the slide block 3312 located inside the slide groove can be set as a T-shaped structure, which can prevent the crossbar 3318 from rotating during axial movement under external force. Furthermore, when the clamping plate 3311 is fully embedded in the corresponding groove, the spring 3319 is still in a compressed state. At the same time, the bottom end of the clamping plate 3311 in the initial state is higher than the upper end of the lifting block 338 in the initial state, and the bottom end of the clamping plate 3311 and the upper end of the lifting block 338 are set parallel to each other. Both sides of the frame 331 are provided with through slots 3314 that communicate with the inner cavity of the sleeve frame 333. Both sides of the top plate 339 are fixed with connecting strips that are movably inserted into the corresponding through slots 3314. The two connecting strips are fixedly connected to L-shaped strips 3315 that fit against the outside of the frame 331 at opposite ends. One end of the L-shaped strip 3315 is fixedly provided with a trapezoidal block 3316 that is directly opposite to the corresponding trapezoidal block 3317.

[0028] It should be noted that during the process of transferring the internally mixed material to the open mill station, after the internally mixed material is poured onto the top of the swing plate 337, the material will slide down the inclined swing plate 337 to the top of the lifting block 338. However, due to the extremely irregular shape of the poured material, only the part near the center of the material will land on the top of the lifting block 338, while most of the rest will rest on the top of the swing plate 337. At this time, the cylinder 334 can be controlled by the control terminal to push the lifting block 338 to move vertically upward along the inner side of the frame 331. During this process, as the lifting block 338 gradually moves upward, it will drive the top plate 339 to move upward synchronously. The upward-moving top plate 339 will push the swing plate 337 to gradually deflect upward. At the same time, the upward-moving top plate 339 will also drive the L-shaped bar 3315 to gradually rise. After the trapezoidal block 3316, which rises synchronously with the L-shaped bar 3315, comes into contact with the corresponding trapezoidal block 3317, the rising top plate 339 will push the swing plate 337 to deflect upward. At the same time, the rising trapezoidal block 3316 will squeeze the corresponding trapezoidal block 3317, causing the trapezoidal block 3317 to squeeze towards the inside of the frame 331 along the axis of the crossbar 3318, thereby causing the two clamping plates 3311 to move towards each other. When the clamping plate 3311 is completely pushed out of the corresponding groove, the lifting block 338 moves to the point where its upper end face contacts the lower end face of the clamping plate 3311. Then, as the top plate 339 continues to rise, the swing plate 337 and the two clamping plates 3311 move towards the material at the same time. The closing process of the swing plate 337 and the two clamping plates 3311 is used to gather the protruding parts of the material's corners towards the center of gravity of the material. At the same time, the rising lifting block 338 pushes the clamping plate 3311 to move upward along the corresponding slide. In this way, the material can be pushed upward while the material is simultaneously reshaped, making the material shape more regular and facilitating its rolling down along the frame 331 to the position between the two rollers 35 for open milling.

[0029] Specifically, such as Figure 1 and Figures 8-11As shown, the cutting assembly 32 includes two scrapers 321 disposed between the opposite sides of the two side frames 31. The two scrapers 321 are slidably sleeved on the outer sides of both ends of the roller 35. Each scraper 321 is composed of a left end plate and a right end plate. An insert plate is fixedly provided on the side of the left end plate facing the right end plate, and a slot is opened on the side of the right end plate that is directly opposite the insert plate. The insert plate is movably inserted into the corresponding slot. The design of the left and right end plates can correspond to the adjustment of the distance between the two rollers 35, ensuring that the scraping process of the scraper 321 is not affected by the adjustment of the distance between the two rollers 35. During the process of adjusting the distance between the two rollers 35, the insert plate always remains movably inserted into the corresponding slot. An elastic cloth is fixedly connected between the opposite sides of the left and right end plates constituting the scraper 321. The setting of the elastic cloth can effectively prevent the material from leaking out from the gap between the left and right end plates during the open milling process, and the presence of the elastic cloth will not affect the separation process of the left and right end plates. A horizontal plate 322 is fixed between the two side frames 31. Vertical rods 324 are movably inserted through both ends of the horizontal plate 322. Circular plates 325 and lifting frames 323 are fixed at the top and bottom of the two vertical rods 324, respectively. Springs 326, which connect the circular plates 325 and the horizontal plate 322, are fitted on the outer side of the upper end of the two vertical rods 324. Buffer sleeves 327 are fixed on the outer side of the lower end of the two vertical rods 324. When the upper surface of the buffer sleeve 327 is in contact with the lower surface of the horizontal plate 322, the spring 326 is still compressed. The buffer sleeve 327 prevents the lifting frame 323 from instantly resetting under the restoring force of the spring 326 and avoids excessive impact noise. A power component for driving the lifting frame 323 to rise and fall is also provided between the two side frames 31. The power components include a second servo motor fixedly mounted on the top of the horizontal plate 322 and two L-shaped bars 328 fixedly mounted on the top of the two left end plates. The output shaft of the second servo motor passes through one end of the horizontal plate 322 and is fixedly provided with a gear disk 3212. The second servo motor uses the same model of servo driver as the first servo motor. The two L-shaped bars 328 are arranged in a centrally symmetrical manner with respect to the central axis of the gear disk 3212. On the opposite side of the two L-shaped bars 328, there is a rack 3211 that meshes with the gear disk 3212. The outer side of the gear disk 3212 is provided with two neutral areas and two tooth block areas, and the neutral areas and tooth block areas are alternately arranged so as to use the rotating gear disk 3212 to intermittently drive the two L-shaped bars 328 to move in opposite directions. Two L-shaped bars 328 are each fixed with a trapezoidal block 329 on one side of each other. Two triangular blocks 3210 are fixed on the top of the lifting frame 323, which are directly opposite the trapezoidal blocks 329. One end of each L-shaped bar 328 is provided with an insertion hole. A crossbar 3224 is fixed on the inner side of each side frame 31, with one end movably inserted into the corresponding insertion hole. A spring 3225 is sleeved on the outer side of the crossbar 3224 to fix and connect the side frame 31 and the corresponding L-shaped bar 328. The crossbar 3224 can be used to limit the movement trajectory of the corresponding L-shaped bar 328 and enhance the resistance of the two L-shaped bars 328 when pushing the trapezoidal block 329 and the corresponding triangular block 3210 to compress. When the spring 3225 is in its natural state, the opposite side of the two scrapers 321 is exactly in contact with the inner side of the corresponding side frame 31, while the two trapezoidal blocks 329 are separated from the corresponding triangular blocks 3210. A through slot is provided in the middle of one side of the lifting frame 323. Inside the through slot, a swing bar 3213 is installed by rotating a rod. The bottom of one end of the swing bar 3213 extending into the lifting frame 323 is fixedly connected to a pressure bar 3214. The top of both left end plates is provided with slots. The slots ensure that the presence of the lifting frame 323 will not affect the scraping process of the scraper 321. Arc bars 3215 are fixedly provided on the inner side of both left end plates at the edge of the corresponding slot. The arc bars 3215 can guide the material near the edge to the center during the grinding process, ensuring the smooth progress of the subsequent cutting process. Guide grooves 3216 are provided at the two edges on both sides of the inner cavity of the lifting frame 323. Vertical rods 3217 are fixedly installed inside each guide groove 3216. Lifting bars 3219 are movably sleeved between the vertical rods 3217 inside the two sets of opposing guide grooves 3216. Cutters 3220 are fixedly installed at the bottom of each lifting bar 3219. The movement direction of the cutters 3220 can be limited by the cooperation between the vertical rods 3217 and the corresponding guide grooves 3216. A spring 3218 is sleeved on the outside of each vertical rod 3217. The springs inside one set of opposing guide grooves 3216... A second set of springs 3218 is fixedly connected to the top of the inner side of the lifting bar 3219 and the guide groove 3216. Another set of two springs 3218 inside the guide grooves 3216 are fixedly connected to the bottom of the inner side of the lifting bar 3219 and the guide groove 3216. When the springs 3218 are in their natural state, the lifting bar 3219 near the mixing part 2 is located at the top of the corresponding guide groove 3216, while the lifting bar 3219 away from the mixing part 2 is located at the bottom of the corresponding guide groove 3216. The upper end face of the lifting bar 3219 away from the mixing part 2 is in contact with the lower end face of the pressure bar 3214. A second ear plate 3222 is fixedly provided on the middle of the outer side of the lifting frame 323. A first ear plate 3221, directly opposite the second ear plate 3222, is fixedly provided on the middle of one side of one of the lifting bars 3219. A third vertical rod 3223, which movably passes through the second ear plate 3222, is fixedly provided at the top of the first ear plate 3221. A hemispherical top is fixedly provided at the top of the third vertical rod 3223. A return spring, which connects the second ear plate 3222 and the top, is sleeved on the outer side of the third vertical rod 3223. The lifting bar 3219 is initially in a... Figure 9 As shown in the diagram, the return spring is in its natural state, while the swing bar 3213 is in a horizontal state. An auxiliary unloading assembly is provided between the side frames 31. The auxiliary unloading assembly consists of a guide frame 5 fixed to the outside of one of the cutters 3220 and an unloading frame 4 fixed between the two side frames 31. The guide frame 5 includes a horizontal plate fixedly connected to the corresponding lifting bar 3219 and an arc plate 1 fixedly connected to the corresponding cutter 3220. The horizontal plate and the arc plate 1 are integrally formed. The unloading frame 4 consists of a T-shaped plate located between the two side frames 31 and an arc plate 2 fixed to the middle of one end of the T-shaped plate. The T-shaped plate is detachably fixed to the two side frames. This method includes, but is not limited to, fixing with bolts. The arc plate 2 and the corresponding roller 35 are concentrically arranged.

[0030] It should be noted that when the material after the open mill is cut into segments, the servo motor 2 is activated to drive the toothed disc 3212 to rotate. During the continuous rotation, the two L-shaped strips 328 are intermittently driven to move in opposite directions and reset. During this process, when the trapezoidal block 329 at the end of the two L-shaped strips 328 that are moving in opposite directions comes into contact with the corresponding triangular block 3210, as the corresponding L-shaped strip 328 continues to move, the trapezoidal block 329 will apply pressure to the corresponding triangular block 3210. As the trapezoidal block 329 continues to move, it will push the lifting frame 323 to move downward, and use the circular plate 325 that moves downward to compress the corresponding spring 326. Meanwhile, as the two L-shaped strips 328 move in opposite directions, they will drive the two scrapers 321 to move in opposite directions along the axis of the roller 35 to scrape the material. As the lifting frame 323 moves downward, it simultaneously drives the two cutters 3220 downward. During this process, the cutter 3220 closer to the mixing section 2 will first contact the material to be cut and cut it under the action of the corresponding spring 3218. Then, it contacts the outer side of the corresponding roller 35 and, under the blocking action of the corresponding roller 35, the cutter 3220 that cuts the material will push the corresponding lifting bar 3219 to squeeze the spring 3218 along the axis of the vertical rod 3217. At the same time, it drives the vertical rod 3223 with the top head to move upward. As the top head moves upward, it will push the end of the swing bar 3213 extending to the outside of the lifting frame 323 to swing upward and stretch the return spring. The end of the swing bar 3213 located inside the lifting frame 323 will swing downward and use the downwardly swinging pressure bar 3214 to squeeze the corresponding lifting bar 3219 downward, thereby driving the cutter 3220 away from the mixing section 2 to move downward and compress the corresponding spring 3218 downward. When the cutter 3220, which is far from the mixing section 2, completes the secondary cutting of the material, the two toothed blocks on the toothed disc 3212 just disengage from the toothed rack 3211 on the corresponding L-shaped strip 328. At this time, the two cutters 3220 will instantly reset under the action of the compression restoring force of the spring 3218 and the tension restoring force of the return spring. The material that has been cut twice will roll down along the unloading rack 4 to the next process under the action of the guide rack 5 and the corresponding rotating roller 35. During the cutting process described above, after the cutter 3220 near the mixing section 2 cuts the material once, as the roller 35 continues to rotate, the cut material will gradually accumulate under the obstruction of the cutter 3220, and will accumulate towards the other cutter 3220 under the guidance of the arc plate on the guide frame 5. The center of gravity of the accumulated material will also shift away from the cutter 3220 of the mixing section 2. After the cutter 3220 away from the mixing section 2 cuts the material a second time, the two cutters 3220 will instantly return to their original positions. Due to the shift in the center of gravity, the accumulated material will roll down along the unloading frame 4 to the next station for reprocessing during the rotation of the corresponding roller 35, under the action of its own gravity and the obstruction of the guide frame 5 after the reset. Example

[0031] Refer to the instruction manual appendix Figure 2 and Figures 12-13The present invention also provides a rubber material internal mixing and open mixing machine. An adjustment component 34 is provided at the top of the base 1 between two rollers 35. The adjustment component 34 includes a second cylinder 342 fixed to the top of the base 1 and two uprights 341. The second cylinder 342 is a cylinder of the same model as the first cylinder 334. An inclined base plate 343 is fixed between the top surfaces of the two uprights 341. The upper end of the base plate 343 is tangent to the outer side of the roller 35 near the mixing section 2. A notch is opened at the bottom end of the base plate 343. A swing plate 344 is rotatably installed inside the notch through a rotating rod. The presence of the notch allows the swing plate 344 to swing within the adjustment range. An arc-shaped spring piece 345 is fixed on one side of the base plate 343. The spring piece 345 is supported by spring steel and has high elasticity, high fatigue strength and good toughness. It can ensure that the end of the spring piece 345 away from the base plate 343 is always in contact with the surface of the swing plate 344 during the swing of the swing plate 344. The telescopic end of cylinder 2 342 is fixedly provided with a support 346, and a ball 347 is rolled and embedded on the top of the support 346. A connecting rod 348 is fixedly connected between the ball 347 and the swing plate 2 344.

[0032] It should be noted that during the open milling process of the completed internally mixed material, the substrate 343, which is tangent to the outer side of the roller 35 near the internally mixed section 2, can be used to scrape off the material adhering to the outer side of the roller 35. Then, the other roller 35 rotates and moves upward to perform open milling. Before open milling, the support 346 needs to be pushed up and down by the cylinder 342 according to the open milling requirements. The tilt angle of the swing plate 344 is adjusted by the constraint of the connecting rod 348 and the ball 347. During this period, the spring 345 will always be in contact with the upper surface of the swing plate 344 to block the notch at the bottom of the substrate 343 and prevent the material from leaking out from the notch during the open milling process.

[0033] The present invention also provides a method for internal mixing and milling of rubber materials using the above-mentioned integrated internal mixing and milling machine, which specifically includes the following operating steps: S1. Internal mixing: Open the door 26 of the internal mixing chamber 21, put the mixed raw materials into the unloading hopper 22, and use a pair of oppositely rotating rotors 23 to fully mix the raw materials under closed conditions. S2, Transfer: After the mixing is completed, the straight bar 25 is driven to flip by an external power source and the unloading hopper 22 is rotated and opened, so that the mixed material falls onto the transfer component 33 and is transported to the area between the two rollers 35 through the transfer component 33. S3, Opening mill: The distance between the two rollers 35 is adjusted in advance according to the opening mill requirements. After the mixed material falls between the two rollers 35, the two rollers 35 rotating in opposite directions are used to carry out the opening mill operation by adjusting the coordination of the component 34. S4. Cutting: After the open mill is completed, the rotating toothed disc 3212 drives the two L-shaped strips 328 to drive the two scrapers 321 to move towards each other, so that the material at the edge moves closer to the center. At the same time, it drives the two cutters 3220 to complete the segmented cutting of the material.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A rubber material internal mixing and open milling integrated machine, comprising a base (1), an internal mixing section (2), and an open milling section (3), characterized in that, The mixing section (2) and the open mixing section (3) are integrated and installed on the top of the base (1). The open mixing section (3) includes two side frames (31) fixedly installed on the top of the base (1), and two rollers (35) rotating in opposite directions are provided between the two side frames (31). Between the two side frames (31) is a cutting assembly (32) for automatically cutting the rubber material after open mixing and a transfer assembly (33) for transferring the rubber material after internal mixing to the two rollers (35) for open mixing processing.

2. The rubber material internal mixing and open milling machine according to claim 1, characterized in that, The mixing section (2) includes a mixing chamber (21) fixed on the top of the base (1) and two opposing supports (24). The mixing chamber (21) has a lifting door (26) installed at the feed inlet. The supports (24) are located near the open mixing section (3). A discharge hopper (22) is movably installed on one side of the mixing chamber (21). A pair of opposing rotors (23) are installed inside the discharge hopper (22). A straight bar (25) is rotatably installed between the two supports (24) through a rotating rod. The straight bar (25) is fixed on the outside of the discharge hopper (22).

3. The integrated internal mixing and milling machine for rubber materials according to claim 1, characterized in that, Each of the two side frames (31) has a frame groove, the two frame grooves are arranged opposite each other, and a seat block is slidably installed inside each of the two frame grooves. One roller (35) is rotatably installed at the center position between the two seat blocks, and the other roller (35) is rotatably installed between the two side frames (31). A servo motor is fixedly installed on one side of each of the two side frames (31). The output shaft end of the servo motor is fixedly provided with a screw that moves through the corresponding frame groove. The two seat blocks are respectively threaded onto the outside of the corresponding screw.

4. The integrated internal mixing and milling machine for rubber materials according to claim 1, characterized in that, The cutting assembly (32) includes two scrapers (321) disposed between the opposite sides of the two side frames (31). The two scrapers (321) are slidably sleeved on the outer sides of both ends of the roller (35). Each scraper (321) is composed of a left end plate and a right end plate. An insert plate is fixedly provided on the side of the left end plate facing the right end plate. A slot is opened on the side of the right end plate that is directly opposite to the insert plate. The insert plate is movably inserted into the corresponding slot. An elastic cloth is fixedly connected between the opposite sides of the left end plate and the right end plate that constitute the scraper (321). A horizontal plate (322) is fixed between the two side frames (31). A vertical rod (324) is movably inserted through both ends of the horizontal plate (322). A circular plate (325) and a lifting frame (323) are fixed at the top and bottom of the two vertical rods (324), respectively. A spring (326) is fitted on the outer side of the upper end of the two vertical rods (324) to fix and connect the circular plate (325) and the horizontal plate (322). A buffer rubber sleeve (327) is fixed on the outer side of the lower end of the two vertical rods (324). A power component for driving the lifting frame (323) to rise and fall is also provided between the two side frames (31).

5. The rubber material internal mixing and open milling machine according to claim 4, characterized in that, The power components include a second servo motor fixedly installed on the top of the horizontal plate (322) and an L-shaped bar (328) fixedly installed on the top of the two left end plates. The output shaft of the second servo motor passes through one end of the horizontal plate (322) and is fixedly provided with a toothed disc (3212). The two L-shaped bars (328) are arranged in a centrally symmetrical manner with respect to the central axis of the toothed disc (3212). On the opposite side of the two L-shaped bars (328), a rack (3211) that meshes with the toothed disc (3212) is fixedly provided. Two L-shaped bars (328) are fixedly provided with trapezoidal blocks (329) on opposite sides. Two triangular blocks (3210) are fixedly provided on the top of the lifting frame (323) and are directly opposite to the trapezoidal blocks (329). One end of each L-shaped bar (328) is provided with a socket. One end of each side frame (31) is fixedly provided with a crossbar (3224) that is movably inserted into the corresponding socket. A spring (3225) is provided on the outside of the crossbar (3224) to fix and connect the side frame (31) and the corresponding L-shaped bar (328).

6. The rubber material internal mixing and open milling machine according to claim 4, characterized in that, A through slot is provided in the middle of one side of the lifting frame (323). A swing bar (3213) is installed inside the through slot via a rotating rod. A pressure bar (3214) is fixedly connected to the bottom of one end of the swing bar (3213) that extends into the lifting frame (323). A slot is provided at the top of both left end plates, and an arc strip (3215) is fixedly provided on the inner side of both left end plates at the edge of the corresponding slot. Guide grooves (3216) are provided at the two edges on both sides of the inner cavity of the lifting frame (323). Vertical rods (3217) are fixedly installed inside the guide grooves (3216). Lifting bars (3219) are movably sleeved between the vertical rods (3217) inside the two sets of guide grooves (3216) that are arranged opposite each other. Cutters (3220) are fixedly installed at the bottom of the two lifting bars (3219). Springs (3218) are sleeved on the outside of each vertical rod (3217). The springs (3218) inside the two sets of guide grooves (3216) that are arranged opposite each other are fixedly connected to the springs (3218) at the top of the inner side of the lifting bar (3219) and the guide groove (3216). The springs (3218) inside the two sets of guide grooves (3216) that are arranged opposite each other are fixedly connected to the lifting bar (3219) and the bottom of the inner side of the guide groove (3216). The lifting frame (323) is fixedly provided with ear plate two (3222) in the middle of the outer side, and ear plate one (3221) is fixedly provided in the middle of one side of one of the lifting bars (3219). A vertical rod three (3223) that can move through ear plate two (3222) is fixedly provided at the top of ear plate one (3221). A top head is fixedly provided at the top of vertical rod three (3223). A return spring that fixes ear plate two (3222) and top head is sleeved on the outside of vertical rod three (3223). An auxiliary unloading assembly is provided between the side frames (31). The auxiliary unloading assembly consists of a guide frame (5) fixed to the outside of one of the side cutters (3220) and an unloading frame (4) fixed between the two side frames (31).

7. The rubber material internal mixing and open milling machine according to claim 1, characterized in that, The transfer assembly (33) includes a frame (331) located between two side frames (31) and a cylinder (334) fixed on the top of the base (1). Straight plates (332) are fixed between the two sides of the frame (331) and the corresponding side frames (31). A sleeve frame (333) is fixedly provided inside the frame (331). A lifting block (338) is fixedly connected to the telescopic end of the cylinder (334) and is movably sleeved between the sleeve frame (333) and the inside of the frame (331).

8. The rubber material internal mixing and open milling machine according to claim 7, characterized in that, The transfer assembly (33) also includes a sinkhole (335) opened at the top of the frame (333), a swing plate (337) is installed inside the sinkhole (335), a top plate (339) is provided inside the frame (333), a through slot (2) is opened on the side of the frame (333) facing the lifting block (338), a connecting plate (3310) that is fixedly connected to the lifting block (338) and the top plate (339) is movably installed inside the through slot (2), and a Y-shaped frame (336) is fixedly provided on the side of the frame (333) away from the lifting block (338). The frame (331) has slots on both sides of its inner cavity. Each slot has a clamp (3311) movably fitted inside. Each clamp (3311) has a sliding groove on the opposite side. Each sliding groove has a sliding seat (3312) slidably connected inside. One end of the sliding seat (3312) is fixedly connected to a crossbar (3318). The outside of the crossbar (3318) is movably fitted with an L-shaped frame (3313) fixedly connected to the outside of the frame (331). One end of the crossbar (3318) is fixedly fitted with a trapezoidal block (3317). The outside of the crossbar (3318) is fitted with a spring (3319) that is fixedly connected to the trapezoidal block (3317) and the L-shaped frame (3313). Both sides of the frame (331) are provided with through slots (3314) that communicate with the inner cavity of the sleeve frame (333). Both sides of the top plate (339) are fixed with connecting strips that are movably inserted into the corresponding through slots (3314). The two connecting strips are fixedly connected to L-shaped strips (3315) that fit against the outside of the frame (331) at opposite ends. One end of the L-shaped strip (3315) is fixedly provided with a trapezoidal block (3316) that is directly opposite to the corresponding trapezoidal block (3317).

9. The integrated internal mixing and milling machine for rubber materials according to claim 1, characterized in that, An adjustment assembly (34) is provided at the top of the base (1) between the two rollers (35). The adjustment assembly (34) includes a cylinder two (342) fixed to the top of the base (1) and two uprights (341). An inclined base plate (343) is fixed between the top surfaces of the two uprights (341). A notch is opened at the bottom of the base plate (343). A swing plate two (344) is installed inside the notch by rotating a rod. A spring piece (345) is fixed on one side of the base plate (343). The telescopic end of the cylinder 2 (342) is fixedly provided with a support (346), and a ball (347) is rolled and embedded on the top of the support (346). A connecting rod (348) is fixedly connected between the ball (347) and the swing plate 2 (344).

10. A method for internal mixing of rubber materials, comprising using an integrated internal mixing and milling machine for rubber materials as described in any one of claims 1-9 to perform internal mixing and milling of the rubber materials, characterized in that, The specific steps include the following: S1. Internal mixing: Open the door (26) of the internal mixing chamber (21), put the mixed raw materials into the unloading hopper (22), and use a pair of oppositely rotating rotors (23) to fully mix the raw materials under closed conditions. S2, Transfer: After the mixing is completed, the straight bar (25) is driven to flip by an external power source and the unloading hopper (22) is rotated and opened, so that the mixed material falls onto the transfer component (33) and the material is transported to the area between the two rollers (35) through the transfer component (33). S3, Opening: The distance between the two rollers (35) is adjusted in advance according to the opening requirements, and after the mixed material falls between the two rollers (35), the two rollers (35) rotating in opposite directions are used to carry out the opening operation by adjusting the coordination of the component (34). S4. Cutting: After the open mill is completed, the rotating toothed disc (3212) drives the two L-shaped strips (328) to drive the two scrapers (321) to move towards each other, so that the material at the edge moves closer to the center. At the same time, it drives the two cutters (3220) to complete the segmented cutting of the material.

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