Open mill for rubber production and processing

Abstract

The invention relates to the technical field of rubber production and processing equipment, and discloses a rubber production and processing open mill which comprises an open mill body, a mixing barrel, a feeding hopper, a rectangular frame, a telescopic pipe, a blowing and preheating device, a mixing device, a screening device and the like. The upper end of the telescopic pipe is communicated with the mixing barrel, the lower end of the telescopic pipe is communicated with the rectangular frame, the blowing preheating device is fixedly connected with the mixing barrel, the mixing device is connected with the mixing barrel and the blowing preheating device, and the screening device is connected with the mixing device, the rectangular frame and the two mounting frames. By arranging the mounting rack, the rectangular frame, the moving ring, the sieve plate and other structures, after falling onto the upper surface of the sieve plate, a rubber raw material can uniformly fall above the rollers through front-back shaking of the sieve plate, and the sieve plate can transversely move back and forth along with the rectangular frame, so that the rubber raw material can uniformly cover a roller gap between the two rollers, and the rubber mixing effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of rubber production and processing equipment, in particular to a rubber production and processing mixing mill. Background Art

[0002] Rubber usually refers to a highly elastic polymer material with reversible deformation. It is elastic at room temperature, can produce large deformation under very small external force, and can return to its original shape after the external force is removed. Rubber can be divided into natural rubber and synthetic rubber. Natural rubber is made by extracting gum from plants such as rubber trees and rubber grass; synthetic rubber is made from various monomers through polymerization reaction.

[0003] When a traditional rubber mixing mill mixes rubber raw materials, the rubber raw materials are usually poured directly onto the top of the roller, which makes it easy for the rubber raw materials to be concentrated in a certain area due to gravity, resulting in uneven distribution of rubber at various points on the roller, which in turn causes inconsistent shear force and extrusion force in various areas during the rotation of the roller, resulting in uneven breakage of the macromolecular chains inside the rubber, affecting the mixing effect and physical properties of the rubber. Therefore, a rubber production and processing mixing mill is proposed. Summary of the invention

[0004] The invention aims to solve the technical problem of how to make rubber raw materials fall evenly above the rollers and improve the effect of rubber mixing, and provides a rubber production and processing mixing mill.

[0005] The technical solution adopted by the present invention to solve its technical problem is: A rubber production and processing mixing mill comprises a base, a mixing mill body, two mounting frames, two supporting plates, a mixing barrel, a feed hopper, two mounting blocks, a rectangular frame, a telescopic pipe, a controller, a blowing preheating device, a mixing device, and a screening device.

[0006] The mixing mill body is arranged above the base, and the bottom of the mixing mill body is fixedly connected to the top of the base.

[0007] The two mounting frames are symmetrically arranged above the mixing mill body and arranged front to back. The bottoms of the two mounting frames are respectively fixedly connected to the top of the mixing mill body, and the opposite sides of the two mounting frames are provided with first slide grooves.

[0008] The two support plates are vertically symmetrically arranged above the two mounting frames and arranged left and right. The bottoms of the two support plates are fixedly connected to the tops of the two mounting frames respectively.

[0009] The mixing cylinder is transversely arranged above the two supporting plates, and the bottom of the mixing cylinder is fixedly connected to the tops of the two supporting plates respectively.

[0010] The feed hopper is arranged on the upper part of the mixing cylinder, one end of the feed hopper is connected with the mixing cylinder, and the other end of the feed hopper is connected with the outside.

[0011] The two mounting blocks are symmetrically arranged on opposite sides of the two mounting frames, and are respectively located in the two first sliding grooves of the two mounting frames. The two mounting blocks are slidably connected to the two mounting frames along the two first sliding grooves.

[0012] The rectangular frame is transversely arranged at opposite sides of the two mounting frames, and the rectangular frame is fixedly connected to the two mounting blocks respectively.

[0013] The telescopic tube is arranged between the rectangular frame and the mixing cylinder, the upper end of the telescopic tube is connected with the mixing cylinder, and the connection point is located at the side of the mixing cylinder away from the feed hopper, and the lower end of the telescopic tube is connected with the rectangular frame.

[0014] The blowing preheating device is arranged on the upper part of the mixing cylinder, and the blowing preheating device is fixedly connected to the mixing cylinder.

[0015] The mixing device is arranged on the side of the mixing cylinder away from the feeding hopper, and the mixing device is connected with the mixing cylinder and the blowing preheating device.

[0016] The screening device is arranged at the lower part of the mixing drum, and is connected with the mixing device, the rectangular frame and the two mounting frames.

[0017] The controller is arranged on the side of the mixing mill body, the controller is fixedly connected to the side of the mixing mill body, and the controller is electrically connected to the blowing preheating device and the screening device respectively.

[0018] When using this equipment, the staff pours the rubber raw materials and additives into the feed hopper, and the raw materials enter the mixing drum. Then the staff starts the blowing preheating device through the controller. The mixing device mixes the raw materials and then conveys them to the telescopic tube. During the mixing and conveying process, the blowing preheating device blows hot air to the raw materials to preheat the raw materials. After the raw materials enter the telescopic tube, they fall into the screening device. The screening device allows the raw materials to fall evenly onto the two rollers of the mixing mill and fill the roller gap between the two rollers to facilitate rubber processing.

[0019] Furthermore, the blowing preheating device includes a cylinder body, a driving cylinder, a piston, an air inlet pipe, an air outlet pipe, a blowing pipe, and a plurality of blowing heads.

[0020] The cylinder body is arranged above the mixing barrel and at the side of the feed hopper, and the bottom of the cylinder body is fixedly connected to the top of the mixing barrel.

[0021] The driving cylinder is arranged inside the cylinder body, at the side of the cylinder body away from the feed hopper, and the driving cylinder is fixedly connected to the inner wall of the cylinder body.

[0022] The piston is vertically arranged inside the cylinder body, the piston is fixedly connected to the telescopic end of the driving cylinder, and the piston is slidably connected to the cylinder body along the inner wall of the cylinder body.

[0023] The air inlet pipe is arranged on the side of the cylinder body close to the feed hopper, one end of the air inlet pipe is connected with the cylinder body, and the other end is connected with the external hot air.

[0024] The blowing pipe is transversely arranged inside the mixing barrel, close to the inner wall at the top of the mixing barrel, and the blowing pipe is fixedly connected to the inner wall at the top of the mixing barrel.

[0025] The air outlet pipe is arranged at the bottom of the cylinder body and passes through the top of the mixing cylinder. One end of the air outlet pipe is communicated with the mixing cylinder, and the other end is communicated with the blowing pipe.

[0026] A plurality of air blowing heads are vertically arranged at the lower part of the blowing pipe, one end of the plurality of air blowing heads is communicated with the blowing pipe, and the other end is communicated with the inside of the mixing barrel.

[0027] When the raw materials need to be preheated, the staff controls the telescopic end of the driving cylinder to move right through the controller, and the telescopic end of the driving cylinder drives the piston to move right, and the piston drives the first connecting strip to move right, driving the hot air from the outside to enter the cylinder through the air inlet pipe and the one-way valve in turn. The staff controls the telescopic end of the driving cylinder to move left through the controller, and the telescopic end of the driving cylinder drives the piston to move left, and the piston drives the first connecting strip to move left, pushing the hot air in the cylinder through the one-way valve, the air outlet pipe, the blowing pipe, and the blowing head in turn, and then blows to the surface of the raw materials in the mixing barrel to perform preheating work and facilitate subsequent processing.

[0028] Furthermore, there are four supporting columns under the base.

[0029] Keep the device stable.

[0030] Furthermore, both the inlet pipe and the outlet pipe are provided with one-way valves.

[0031] The hot air is stably discharged to the blowing pipe through the air outlet pipe, and then blown to the raw material through the blowing head.

[0032] Furthermore, the mixing device includes a first rotating shaft, a spiral roller, a one-way overrunning clutch, a worm gear, a support sleeve, a worm, a first gear, a first connecting bar, and a first rack.

[0033] The first rotating shaft is transversely arranged inside the mixing cylinder and below the plurality of blowing heads. One end of the first rotating shaft transversely penetrates the side of the mixing cylinder away from the feed hopper. The first rotating shaft is rotationally connected to the mixing cylinder.

[0034] The spiral roller is arranged inside the mixing drum and sleeved on the outside of the first rotating shaft. The axis of the spiral roller coincides with the axis of the first rotating shaft, and the spiral roller is fixedly connected to the first rotating shaft.

[0035] The one-way overrunning clutch is arranged on the side of the mixing barrel away from the feed hopper, and is sleeved on the outer side of the first rotating shaft. The axis of the one-way overrunning clutch coincides with the axis of the first rotating shaft, and the one-way overrunning clutch is fixedly connected to the first rotating shaft.

[0036] The worm wheel is vertically arranged on the side of the mixing barrel and sleeved on the outer side of the one-way overrunning clutch. The axis of the worm wheel coincides with the axis of the first rotating shaft. The worm wheel is fixedly connected to the outer ring of the one-way overrunning clutch.

[0037] The support sleeve is arranged on the side of the mixing barrel away from the feed hopper and is located above and behind the worm gear. The side of the support sleeve is fixedly connected to the mixing barrel.

[0038] The worm is vertically arranged on the side of the mixing barrel, at the rear side of the worm wheel, and passes through the interior of the support sleeve. The worm is rotationally connected with the support sleeve, and the worm is meshed with the worm wheel.

[0039] The first gear is transversely arranged on the side of the mixing barrel and sleeved on the outer side of the worm. The axis of the first gear coincides with the axis of the worm. The first gear is fixedly connected to the worm.

[0040] The connecting strip is transversely arranged on the side of the cylinder away from the feed hopper and is located at the rear side of the first gear. One end of the connecting strip is fixedly connected to the piston, and the other end of the connecting strip passes through the side of the cylinder and is slidably connected to the cylinder.

[0041] The first rack is transversely arranged on the side of the cylinder body and is between the first gear and the first connecting bar. The first rack is fixedly connected to the first connecting bar, and the first rack is meshed with the first gear.

[0042] When it is necessary to mix the raw materials, the piston drives the first connecting strip to move right, the first connecting strip drives the first rack to move right, the first rack drives the first gear to rotate forward, the first gear drives the worm to rotate forward, the worm drives the worm wheel to rotate forward, the worm wheel drives the overrunning one-way clutch to rotate forward, the overrunning one-way clutch drives the first rotating shaft to rotate forward, the first rotating shaft drives the cam to rotate forward, drives the spiral roller to rotate forward, the spiral roller mixes the raw materials and pushes the raw materials toward the telescopic tube.

[0043] Furthermore, a plurality of blowing heads are evenly distributed at the lower part of the blowing pipe.

[0044] This allows the hot air to be blown evenly onto the raw materials.

[0045] Furthermore, it comprises a temperature sensor, which is arranged inside the mixing cylinder and on the side of the blowing pipe, and the temperature sensor is fixedly connected to the inner wall of the mixing cylinder.

[0046] Monitor the temperature inside the mixing barrel to prevent the temperature from being too high or too low, which will affect the preheating effect.

[0047] Furthermore, the screening device includes a threaded rod, a round rod, a second gear, a cam, a convex rod, a cross plate, a spring, a second connecting strip, a second rack, a screen plate, a moving ring, two sliders, a motor, an incomplete gear, and two third racks.

[0048] The threaded rod is transversely arranged in the first slide groove in the front mounting frame, passes through the mounting block, and passes through the side of the mounting frame close to the feed hopper. The threaded rod is rotatably connected to the mounting frame and is spirally connected to the mounting block.

[0049] The round rod is transversely arranged in the first slide groove in the rear mounting frame and is arranged parallel to the threaded rod. The round rod transversely penetrates the mounting block and is fixedly connected to the mounting frame.

[0050] The second gear is vertically arranged on the side of the mounting frame close to the feed hopper and sleeved on the outer side of the threaded rod. The axis of the second gear coincides with the axis of the threaded rod, and the second gear is fixedly connected to the threaded rod.

[0051] The cam is arranged inside the mixing cylinder, above the second gear, and sleeved on the outer side of the first rotating shaft. The cam is fixedly connected to the first rotating shaft.

[0052] The protruding rod is vertically arranged at the lower part of the mixing barrel and is below the cam. The protruding rod vertically penetrates the bottom of the mixing barrel, and the protruding rod is vertically slidably connected with the mixing barrel.

[0053] The horizontal plate is arranged horizontally below the mixing cylinder and is located directly below the protruding rod. The top of the horizontal plate is fixedly connected to the bottom of the protruding rod.

[0054] The spring is vertically arranged between the mixing cylinder and the horizontal plate, and is sleeved on the outer side of the protruding rod. The upper end of the spring is fixedly connected to the mixing cylinder, and the lower end is fixedly connected to the top of the horizontal plate.

[0055] The second connecting bar is vertically arranged below the horizontal plate and behind the second gear, and the upper end of the connecting bar is fixedly connected to the bottom of the horizontal plate.

[0056] The second rack is vertically arranged between the second gear and the second connecting bar, the second rack is fixedly connected to the second connecting bar, and the second rack is meshed with the second gear.

[0057] The sieve plate is transversely arranged inside the rectangular frame, the sieve plate passes through the front and rear of the rectangular frame, and the sieve plate is connected with the rectangular frame in a front-rear sliding manner.

[0058] The moving ring is arranged in the rectangular frame, close to the left inner wall of the rectangular frame and below the sieve plate, and the top of the moving ring is fixedly connected to the bottom of the sieve plate.

[0059] The two sliders are arranged in the rectangular frame and are symmetrically arranged up and down. The two sliders are connected to the inner wall of the rectangular frame by sliding forward and backward, and the two sliders are fixedly connected to the moving rings respectively.

[0060] The motor is arranged on the side of the rectangular frame close to the feed hopper, the rotating shaft of the motor passes through the rectangular frame and extends to the inside of the moving ring, and the motor is fixedly connected to the rectangular frame.

[0061] The two third racks are symmetrically arranged inside the moving ring, and the two third racks are fixedly connected to the upper inner wall and the lower inner wall of the moving ring respectively.

[0062] The incomplete gear is vertically arranged inside the moving ring, sleeved on the outside of the motor's rotating shaft, and located between the two third racks. The axis of the incomplete gear coincides with the axis of the motor's rotating shaft. The incomplete gear is fixedly connected to the motor's rotating shaft, and the incomplete gear is respectively meshed with the two third racks.

[0063] When the raw materials need to fall evenly onto the roller surface of the mixing mill, the staff starts the motor through the controller, and the motor shaft drives the incomplete gear to rotate. The incomplete gear meshes with the third rack at the top, drives the third rack forward, the third rack drives the moving ring forward, the moving ring drives the screen plate forward, the incomplete gear meshes with the third rack at the bottom, drives the third rack backward, the third rack drives the moving ring backward, the moving ring drives the screen plate backward, so that the screen plate can swing back and forth, and the raw materials fall onto the screen plate surface through the telescopic end, and the screen plate swings the raw materials back and forth, so that the raw materials fall evenly onto the two rollers of the mixing mill body.

[0064] When the first rotating shaft drives the cam to rotate forward, the cam intermittently pushes the convex rod downward, the convex rod stretches the spring, drives the cross plate downward, the cross plate drives the second connecting strip downward, the second connecting strip drives the second rack downward, the second rack drives the second gear to rotate forward, the second gear drives the threaded rod to rotate forward, the threaded rod rotates forward, the threaded rod rotates forward and drives the mounting block to move right along the round rod, the mounting block drives the rectangular frame to move right, the rectangular frame drives the screen plate to move right, the screen plate moves right so that the evenly fallen raw materials fill the roller gap between the two rollers of the open mill body. When the cam does not push the convex rod downward, the spring contracts and resets, the spring drives the convex rod to move upward and reset, drives the cross plate upward, the cross plate drives the second connecting strip upward, the second connecting strip drives the second gear to rotate in the opposite direction, the second gear drives the threaded rod to rotate in the opposite direction, the threaded rod rotates in the opposite direction and drives the mounting block to move left along the round rod, the mounting block drives the rectangular frame to move left, the rectangular frame drives the screen plate to move left, the screen plate moves left so that the evenly fallen raw materials can fill the roller gap between the two rollers of the open mill body again.

[0065] Furthermore, the mounting block at the rear side is slidably connected to the round rod along the round rod.

[0066] The mounting block can stably drive the rectangular frame to move.

[0067] Furthermore, the two mounting frames are fixedly connected to the mixing mill body by welding.

[0068] This keeps the mounting frame stable, thereby ensuring that the device can work stably.

[0069] Beneficial effects of the present invention: 1. The present invention provides a mounting frame, a rectangular frame, a movable ring, a screen plate and other structures, so that after the rubber raw material falls on the upper surface of the screen plate, it can evenly fall on the roller through the back and forth shaking of the screen plate, and the screen plate will move back and forth laterally with the rectangular frame, so that the rubber raw material can evenly cover the roller gap between the two rollers, thereby improving the rubber mixing effect.

[0070] 2. The present invention provides a first rotating shaft, a spiral roller, a telescopic tube and other structures so that the rubber raw materials and additives can be mixed before starting to mix, thereby preventing the rubber raw materials and additives from being unevenly dispersed due to a large variety of types, affecting the quality of rubber mixing in subsequent processing, and improving the mixing efficiency.

[0071] 3. The present invention provides a cylinder body, a piston, an air inlet pipe, an air outlet pipe, a blowing pipe and other structures, so that the rubber raw materials can be preheated before refining. The preheated rubber raw materials are easier to plasticize, which reduces the mixing time of the rubber raw materials on the roller and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] Figure 1 This is a schematic diagram of the front cross-sectional structure of the rubber production and processing mixing mill; Figure 2 It is a schematic diagram of the cross-sectional structure of a rectangular frame front view of the rubber production and processing mixing mill; Figure 3 This is a schematic diagram of the top view of the mounting frame of the rubber production and processing mixing mill; Figure 4 The utility model is a side view structural diagram of the cam convex rod of the rubber production and processing mixing mill.

[0073] Description of the accompanying drawings: 1. base; 2. mixing mill body; 3. mounting frame; 4. support plate; 5. mixing barrel; 6. feed hopper; 7. mounting block; 8. rectangular frame; 9. telescopic tube; 10. controller; 11. cylinder body; 12. driving cylinder; 13. piston; 14. air inlet pipe; 15. air outlet pipe; 16. blowing pipe; 17. blowing head; 18. first rotating shaft; 19. spiral roller; 20. one-way overrunning clutch; 21 , worm wheel; 22, worm; 23, first gear; 24, first connecting strip; 25, first rack; 26, threaded rod; 27, round rod; 28, second gear; 29, cam; 30, convex rod; 31, cross plate; 32, spring; 33, second connecting strip; 34, second rack; 35, sieve plate; 36, moving ring; 37, slider; 38, motor; 39, incomplete gear; 40, third rack; 41, support sleeve. DETAILED DESCRIPTION

[0074] The concept and technical effects of the present invention will be clearly and completely described below in conjunction with embodiments to fully understand the purpose, features and effects of the present invention.

[0075] like Figure 1-4 As shown, the technical solution adopted by the present invention to solve its technical problem is: A rubber production and processing mixing mill comprises a base 1, a mixing mill body 2, two mounting frames 3, two support plates 4, a mixing barrel 5, a feed hopper 6, two mounting blocks 7, a rectangular frame 8, a telescopic tube 9, a controller 10, a blowing preheating device, a mixing device, and a screening device.

[0076] The mixing mill body 2 is arranged above the base 1 , and the bottom of the mixing mill body 2 is fixedly connected to the top of the base 1 .

[0077] The two mounting frames 3 are symmetrically arranged above the mixing mill body 2 and arranged front to back. The bottoms of the two mounting frames 3 are respectively fixedly connected to the top of the mixing mill body 2, and the opposite sides of the two mounting frames 3 are provided with first slide grooves.

[0078] The two support plates 4 are vertically symmetrically arranged above the two mounting frames 3 and arranged left and right. The bottoms of the two support plates 4 are fixedly connected to the tops of the two mounting frames 3 respectively.

[0079] The mixing drum 5 is disposed transversely above the two support plates 4 , and the bottom of the mixing drum 5 is fixedly connected to the top of the two support plates 4 , respectively.

[0080] The feed hopper 6 is arranged on the upper part of the mixing cylinder 5, one end of the feed hopper 6 is connected to the mixing cylinder 5, and the other end of the feed hopper 6 is connected to the outside.

[0081] The two mounting blocks 7 are symmetrically arranged on opposite sides of the two mounting frames 3 and are respectively located in the two first sliding grooves of the two mounting frames 3 . The two mounting blocks 7 are slidably connected to the two mounting frames 3 along the two first sliding grooves.

[0082] The rectangular frame 8 is transversely disposed on opposite sides of the two mounting frames 3 , and the rectangular frame 8 is fixedly connected to the two mounting blocks 7 , respectively.

[0083] The telescopic tube 9 is disposed between the rectangular frame 8 and the mixing drum 5 , the upper end of the telescopic tube 9 is connected to the mixing drum 5 , and the connection point is located at the side of the mixing drum 5 away from the feed hopper 6 , and the lower end of the telescopic tube 9 is connected to the rectangular frame 8 .

[0084] The blowing preheating device is arranged on the upper part of the mixing cylinder 5 , and the blowing preheating device is fixedly connected to the mixing cylinder 5 .

[0085] The mixing device is arranged on the side of the mixing cylinder 5 away from the feeding hopper 6, and the mixing device is connected to the mixing cylinder 5 and connected to the blowing preheating device.

[0086] The screening device is arranged at the lower part of the mixing drum 5 , and the screening device is connected to the mixing device, connected to the rectangular frame 8 , and connected to the two mounting frames 3 .

[0087] The controller 10 is disposed on the side of the mixing mill body 2, and the controller 10 is fixedly connected to the side of the mixing mill body 2. The controller 10 is electrically connected to the blowing preheating device and the screening device respectively.

[0088] When using this equipment, the staff pours the rubber raw materials and additives into the feed hopper 6, and the raw materials enter the mixing drum 5. Then the staff starts the blowing preheating device through the controller 10. The mixing device mixes the raw materials and then conveys them to the telescopic tube 9. During the mixing and conveying process, the blowing preheating device blows hot air to the raw materials to preheat the raw materials. After the raw materials enter the telescopic tube 9, they fall into the screening device. The screening device allows the raw materials to fall evenly onto the two rollers of the mixing mill and allows the raw materials to fill the roller gap between the two rollers for processing rubber.

[0089] The blowing preheating device comprises a cylinder body 11 , a driving cylinder 12 , a piston 13 , an air inlet pipe 14 , an air outlet pipe 15 , a blowing pipe 16 , and a plurality of blowing heads 17 .

[0090] The cylinder body 11 is disposed above the mixing barrel 5 and is located on the side of the feed hopper 6 , and the bottom of the cylinder body 11 is fixedly connected to the top of the mixing barrel 5 .

[0091] The driving cylinder 12 is arranged inside the cylinder body 11 , at the side of the cylinder body 11 away from the feed hopper 6 , and the driving cylinder 12 is fixedly connected to the inner wall of the cylinder body 11 .

[0092] The piston 13 is vertically disposed inside the cylinder body 11 , and the piston 13 is fixedly connected to the telescopic end of the driving cylinder 12 , and the piston 13 is slidably connected to the cylinder body 11 along the inner wall of the cylinder body 11 .

[0093] The air intake pipe 14 is arranged on the side of the cylinder body 11 close to the feed hopper 6. One end of the air intake pipe 14 is connected to the cylinder body 11, and the other end is connected to the external hot air.

[0094] The blowing pipe 16 is transversely arranged inside the mixing cylinder 5 , close to the top inner wall of the mixing cylinder 5 , and the blowing pipe 16 is fixedly connected to the top inner wall of the mixing cylinder 5 .

[0095] The air outlet pipe 15 is disposed at the bottom of the cylinder body 11 and passes through the top of the mixing cylinder 5 . One end of the air outlet pipe 15 is communicated with the mixing cylinder 5 , and the other end of the air outlet pipe 15 is communicated with the blowing pipe 16 .

[0096] A plurality of air blowing heads 17 are vertically arranged at the lower part of the blowing tube 16 , one end of the plurality of air blowing heads 17 is communicated with the blowing tube 16 , and the other end is communicated with the interior of the mixing barrel 5 .

[0097] When the raw materials need to be preheated, the staff controls the telescopic end of the driving cylinder 12 to move right through the controller 10, and the telescopic end of the driving cylinder 12 drives the piston 13 to move right, and the piston 13 drives the first connecting strip 24 to move right, driving the hot air from the outside to enter the cylinder body 11 through the air inlet pipe 14 and the one-way valve in sequence. The staff controls the telescopic end of the driving cylinder 12 to move left through the controller 10, and the telescopic end of the driving cylinder 12 drives the piston 13 to move left, and the piston 13 drives the first connecting strip 24 to move left, pushing the hot air in the cylinder body 11 through the one-way valve, the air outlet pipe 15, the blowing pipe 16, and the blowing head 17 in sequence, and then blows to the surface of the raw materials in the mixing barrel 5 to perform preheating work and facilitate subsequent processing.

[0098] There are four supporting columns under the base 1.

[0099] Keep the device stable.

[0100] Both the air inlet pipe 14 and the air outlet pipe 15 are provided with one-way valves.

[0101] The hot air is stably discharged to the blowing pipe 16 through the air outlet pipe 15, and then blown to the raw material through the blowing head 17.

[0102] The mixing device includes a first rotating shaft 18 , a spiral roller 19 , a one-way overrunning clutch 20 , a worm gear 21 , a support sleeve 41 , a worm 22 , a first gear 23 , a first connecting bar 24 , and a first rack 25 .

[0103] The first rotating shaft 18 is transversely arranged inside the mixing cylinder 5 and below the plurality of blowing heads 17 . One end of the first rotating shaft 18 transversely penetrates the side of the mixing cylinder 5 away from the feed hopper 6 . The first rotating shaft 18 is rotationally connected to the mixing cylinder 5 .

[0104] The spiral roller 19 is arranged inside the mixing drum 5 and sleeved on the outside of the first rotating shaft 18 . The axis of the spiral roller 19 coincides with the axis of the first rotating shaft 18 , and the spiral roller 19 is fixedly connected to the first rotating shaft 18 .

[0105] The one-way overrunning clutch 20 is arranged on the side of the mixing drum 5 away from the feed hopper 6, and is sleeved on the outer side of the first rotating shaft 18. The axis of the one-way overrunning clutch 20 coincides with the axis of the first rotating shaft 18, and the one-way overrunning clutch 20 is fixedly connected to the first rotating shaft 18.

[0106] The worm gear 21 is vertically arranged on the side of the mixing barrel 5 and sleeved on the outer side of the one-way overrunning clutch 20 . The axis of the worm gear 21 coincides with the axis of the first rotating shaft 18 . The worm gear 21 is fixedly connected to the outer ring of the one-way overrunning clutch 20 .

[0107] The support sleeve 41 is disposed on the side of the mixing barrel 5 away from the feed hopper 6 and is located above and behind the worm gear 21 . The side of the support sleeve 41 is fixedly connected to the mixing barrel 5 .

[0108] The worm 22 is vertically arranged on the side of the mixing barrel 5 , at the rear side of the worm wheel 21 , and passes through the interior of the support sleeve 41 . The worm 22 is rotationally connected to the support sleeve 41 , and the worm 22 is meshed with the worm wheel 21 .

[0109] The first gear 23 is disposed laterally on the side of the mixing barrel 5 and sleeved on the outer side of the worm 22 . The axis of the first gear 23 coincides with the axis of the worm 22 , and the first gear 23 is fixedly connected to the worm 22 .

[0110] The connecting strip is laterally arranged on the side of the cylinder 11 away from the feed hopper 6 and is located on the rear side of the first gear 23. One end of the connecting strip is fixedly connected to the piston 13, and the other end of the connecting strip passes through the side of the cylinder 11 and is slidably connected to the cylinder 11.

[0111] The first rack 25 is transversely disposed on the side of the cylinder body 11 and is located between the first gear 23 and the first connecting bar 24 . The first rack 25 is fixedly connected to the first connecting bar 24 , and the first rack 25 is meshed with the first gear 23 .

[0112] When it is necessary to mix the raw materials, the piston 13 drives the first connecting bar 24 to move right, the first connecting bar 24 drives the first rack 25 to move right, the first rack 25 drives the first gear 23 to rotate forward, the first gear 23 drives the worm 22 to rotate forward, the worm 22 drives the worm wheel 21 to rotate forward, the worm wheel 21 drives the overrunning one-way clutch to rotate forward, the overrunning one-way clutch drives the first rotating shaft 18 to rotate forward, the first rotating shaft 18 drives the cam 29 to rotate forward, drives the spiral roller 19 to rotate forward, the spiral roller 19 mixes the raw materials and pushes the raw materials toward the telescopic tube 9.

[0113] A plurality of air blowing heads 17 are evenly distributed at the lower part of the blowing pipe 16 .

[0114] This allows the hot air to be blown evenly onto the raw materials.

[0115] The temperature sensor is provided inside the mixing cylinder 5 and on the side of the blowing pipe 16 . The temperature sensor is fixedly connected to the inner wall of the mixing cylinder 5 .

[0116] Monitor the temperature in the mixing cylinder 5 to prevent the temperature from being too high or too low, which would affect the preheating effect.

[0117] The screening device includes a threaded rod 26, a round rod 27, a second gear 28, a cam 29, a protruding rod 30, a transverse plate 31, a spring 32, a second connecting strip 33, a second rack 34, a sieve plate 35, a moving ring 36, two sliders 37, a motor 38, an incomplete gear 39, and two third racks 40.

[0118] The threaded rod 26 is transversely arranged in the first slide groove in the front mounting frame 3, passes through the mounting block 7, and passes through the side of the mounting frame 3 close to the feed hopper 6. The threaded rod 26 is rotatably connected to the mounting frame 3 and is spirally connected to the mounting block 7.

[0119] The round rod 27 is transversely arranged in the first slide groove in the rear mounting frame 3 and is arranged parallel to the threaded rod 26 . The round rod 27 transversely penetrates the mounting block 7 , and the round rod 27 is fixedly connected to the mounting frame 3 .

[0120] The second gear 28 is vertically arranged on the side of the mounting frame 3 close to the feed hopper 6 and sleeved on the outer side of the threaded rod 26 . The axis of the second gear 28 coincides with the axis of the threaded rod 26 , and the second gear 28 is fixedly connected to the threaded rod 26 .

[0121] The cam 29 is disposed inside the mixing barrel 5 , above the second gear 28 , and sleeved on the outside of the first rotating shaft 18 . The cam 29 is fixedly connected to the first rotating shaft 18 .

[0122] The protruding rod 30 is vertically arranged at the lower part of the mixing cylinder 5 and is below the cam 29 . The protruding rod 30 vertically penetrates the bottom of the mixing cylinder 5 . The protruding rod 30 is vertically slidably connected to the mixing cylinder 5 .

[0123] The transverse plate 31 is transversely arranged below the mixing cylinder 5 and is located directly below the protruding rod 30 . The top of the transverse plate 31 is fixedly connected to the bottom of the protruding rod 30 .

[0124] The spring 32 is vertically arranged between the mixing cylinder 5 and the horizontal plate 31 , and is sleeved on the outer side of the protruding rod 30 . The upper end of the spring 32 is fixedly connected to the mixing cylinder 5 , and the lower end of the spring 32 is fixedly connected to the top of the horizontal plate 31 .

[0125] The second connecting bar 33 is vertically arranged below the transverse plate 31 and behind the second gear 28 . The upper end of the connecting bar is fixedly connected to the bottom of the transverse plate 31 .

[0126] The second rack 34 is vertically disposed between the second gear 28 and the second connecting bar 33 . The second rack 34 is fixedly connected to the second connecting bar 33 , and the second rack 34 is meshed with the second gear 28 .

[0127] The sieve plate 35 is transversely arranged inside the rectangular frame 8 , and the sieve plate 35 passes through the front and rear parts of the rectangular frame 8 , and the sieve plate 35 is connected to the rectangular frame 8 in a front-rear sliding manner.

[0128] The movable ring 36 is arranged inside the rectangular frame 8 , close to the left inner wall of the rectangular frame 8 , and below the sieve plate 35 . The top of the movable ring 36 is fixedly connected to the bottom of the sieve plate 35 .

[0129] The two sliders 37 are disposed in the rectangular frame 8 and are arranged symmetrically in an up-and-down manner. The two sliders 37 are connected to the inner wall of the rectangular frame 8 for front-back sliding, and the two sliders 37 are fixedly connected to the moving rings 36 respectively.

[0130] The motor 38 is disposed on the side of the rectangular frame 8 close to the feed hopper 6 . The rotating shaft of the motor 38 passes through the rectangular frame 8 and extends to the inside of the moving ring 36 . The motor 38 is fixedly connected to the rectangular frame 8 .

[0131] The two third racks 40 are symmetrically arranged inside the moving ring 36 , and the two third racks 40 are fixedly connected to the upper inner wall and the lower inner wall of the moving ring 36 respectively.

[0132] The incomplete gear 39 is vertically arranged inside the moving ring 36, sleeved on the outside of the rotating shaft of the motor 38, and is located between the two third racks 40. The axis of the incomplete gear 39 coincides with the axis of the rotating shaft of the motor 38. The incomplete gear 39 is fixedly connected to the rotating shaft of the motor 38, and the incomplete gear 39 is respectively meshed with the two third racks 40.

[0133] When it is necessary to make the raw materials fall evenly onto the roller surface of the mixing mill, the staff starts the motor 38 through the controller 10, and the rotating shaft of the motor 38 drives the incomplete gear 39 to rotate, and the incomplete gear 39 engages with the third rack 40 at the top, drives the third rack 40 forward, and the third rack 40 drives the moving ring 36 forward, and the moving ring 36 drives the screen plate 35 forward, and the incomplete gear 39 engages with the third rack 40 at the bottom, drives the third rack 40 backward, and the third rack 40 drives the moving ring 36 backward, and the moving ring 36 drives the screen plate 35 backward, so that the screen plate 35 can swing back and forth, and the raw materials fall onto the surface of the screen plate 35 through the telescopic end, and the screen plate 35 swings the raw materials back and forth, so that the raw materials fall evenly onto the two rollers of the mixing mill body 2.

[0134] When the first rotating shaft 18 drives the cam 29 to rotate forward, the cam 29 intermittently pushes the protruding rod 30 to move downward, the protruding rod 30 stretches the spring 32, drives the cross plate 31 to move downward, the cross plate 31 drives the second connecting bar 33 to move downward, the second connecting bar 33 drives the second rack 34 to move downward, the second rack 34 drives the second gear 28 to rotate forward, the second gear 28 drives the threaded rod 26 to rotate forward, the threaded rod 26 rotates forward and drives the mounting block 7 to move right along the round rod 27, the mounting block 7 drives the rectangular frame 8 to move right, the rectangular frame 8 drives the screen plate 35 to move right, the screen plate 35 moves right so that the evenly fallen raw material is spread over the roller gap between the two rollers of the open mill body 2. When the cam 29 fails to push the protruding rod 30 downward, the spring 32 contracts and resets, and the spring 32 drives the protruding rod 30 upward and resets, drives the cross plate 31 upward, and the cross plate 31 drives the second connecting bar 33 upward, and the second connecting bar 33 drives the second gear 28 to rotate in the opposite direction, and the second gear 28 drives the threaded rod 26 to rotate in the opposite direction, and the threaded rod 26 rotates in the opposite direction and drives the mounting block 7 to move left along the round rod 27, and the mounting block 7 drives the rectangular frame 8 to move left, and the rectangular frame 8 drives the screen plate 35 to move left, and the screen plate 35 moves left so that the evenly fallen raw materials can fill the roller gap between the two rollers of the open mill body 2 again.

[0135] The mounting block 7 at the rear side is slidably connected to the round rod 27 along the round rod 27 .

[0136] This enables the mounting block 7 to stably drive the rectangular frame 8 to move.

[0137] The two mounting frames 3 are fixedly connected to the mixing mill body 2 by welding.

[0138] This keeps the mounting frame 3 stable, thereby ensuring that the device can work stably.

[0139] Working principle: When using this equipment, the staff pours the rubber raw materials and additives into the feed hopper 6, and then the staff controls the telescopic end of the driving cylinder 12 to move right through the controller 10, and the telescopic end of the driving cylinder 12 drives the piston 13 to move right, and the piston 13 drives the first connecting strip 24 to move right, driving the hot air from the outside to enter the cylinder body 11 through the intake pipe 14 and the one-way valve in turn.

[0140] When the piston 13 drives the first connecting strip 24 to move right, the first connecting strip 24 drives the first rack 25 to move right, the first rack 25 drives the first gear 23 to rotate forward, the first gear 23 drives the worm 22 to rotate forward, the worm 22 drives the worm wheel 21 to rotate forward, the worm wheel 21 drives the overrunning one-way clutch to rotate forward, the overrunning one-way clutch drives the first rotating shaft 18 to rotate forward, the first rotating shaft 18 drives the cam 29 to rotate forward, drives the spiral roller 19 to rotate forward, the spiral roller 19 mixes the raw materials and pushes the raw materials to the telescopic tube 9, and then the staff starts the motor 38 through the controller 10, the motor 3 The rotating shaft of 8 drives the incomplete gear 39 to rotate, the incomplete gear 39 meshes with the third rack 40 at the top, drives the third rack 40 forward, the third rack 40 drives the moving ring 36 forward, the moving ring 36 drives the screen plate 35 forward, the incomplete gear 39 meshes with the third rack 40 at the bottom, drives the third rack 40 backward, the third rack 40 drives the moving ring 36 backward, the moving ring 36 drives the screen plate 35 backward, so that the screen plate 35 can swing back and forth, the raw material falls onto the surface of the screen plate 35 through the telescopic end, the screen plate 35 swings the raw material back and forth, so that the raw material falls evenly on the two rollers of the open mill body 2.

[0141] When the first rotating shaft 18 drives the cam 29 to rotate forward, the cam 29 intermittently pushes the protruding rod 30 to move downward, the protruding rod 30 stretches the spring 32, drives the cross plate 31 to move downward, the cross plate 31 drives the second connecting bar 33 to move downward, the second connecting bar 33 drives the second rack 34 to move downward, the second rack 34 drives the second gear 28 to rotate forward, the second gear 28 drives the threaded rod 26 to rotate forward, the threaded rod 26 rotates forward and drives the mounting block 7 to move right along the round rod 27, the mounting block 7 drives the rectangular frame 8 to move right, the rectangular frame 8 drives the screen plate 35 to move right, the screen plate 35 moves right so that the evenly fallen raw material is spread over the roller gap between the two rollers of the open mill body 2.

[0142] When the cam 29 fails to push the protruding rod 30 downward, the spring 32 contracts and resets, and the spring 32 drives the protruding rod 30 upward and resets, drives the cross plate 31 upward, and the cross plate 31 drives the second connecting bar 33 upward, and the second connecting bar 33 drives the second gear 28 to rotate in the opposite direction, and the second gear 28 drives the threaded rod 26 to rotate in the opposite direction, and the threaded rod 26 rotates in the opposite direction and drives the mounting block 7 to move left along the round rod 27, and the mounting block 7 drives the rectangular frame 8 to move left, and the rectangular frame 8 drives the screen plate 35 to move left, and the screen plate 35 moves left so that the evenly fallen raw materials can fill the roller gap between the two rollers of the open mill body 2 again.

[0143] When the staff controls the telescopic end of the driving cylinder 12 to move left through the controller 10, the telescopic end of the driving cylinder 12 drives the piston 13 to move left, and the piston 13 drives the first connecting strip 24 to move left, pushing the hot air in the cylinder body 11 through the one-way valve, the air outlet pipe 15, the blowing pipe 16, and the blowing head 17 in sequence, and then blows to the surface of the raw materials in the mixing barrel 5 to perform preheating work, which is convenient for subsequent processing.

[0144] When the piston 13 drives the first connecting bar 24 to move left, the first connecting bar 24 drives the first rack 25 to move left, the first rack 25 drives the first gear 23 to rotate in the opposite direction, the first gear 23 drives the worm 22 to rotate in the opposite direction, the worm 22 drives the worm wheel 21 to rotate in the opposite direction, the worm wheel 21 only drives the outer ring of the one-way overrunning clutch 20 to rotate in the opposite direction, the one-way overrunning clutch 20 does not drive the first rotating shaft 18 to rotate in the opposite direction, so that the first rotating shaft 18 stops rotating, and then the spiral roller 19 stops rotating, so that the raw materials in the mixing barrel 5 stop moving, and the raw materials can be continuously blown by hot air, thereby improving the preheating effect.

[0145] The above embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without creative work shall all fall within the scope of protection of the present invention.

Claims

1. A rubber production and processing mixing mill, characterized in that: It comprises a base (1), an open mill body (2), two mounting frames (3), two support plates (4), a mixing barrel (5), a feed hopper (6), two mounting blocks (7), a rectangular frame (8), a telescopic pipe (9), a controller (10), a blowing preheating device, a mixing device, and a screening device; The mixing mill body (2) is arranged above the base (1), and the bottom of the mixing mill body (2) is fixedly connected to the top of the base (1); The two mounting frames (3) are symmetrically arranged above the mixing mill body (2) and arranged front to back, the bottoms of the two mounting frames (3) are respectively fixedly connected to the top of the mixing mill body (2), and the opposite sides of the two mounting frames (3) are each provided with a first slide groove; The two support plates (4) are vertically symmetrically arranged above the two mounting frames (3) and arranged left and right, and the bottoms of the two support plates (4) are respectively fixedly connected to the tops of the two mounting frames (3); The mixing cylinder (5) is disposed transversely above the two support plates (4), and the bottom of the mixing cylinder (5) is fixedly connected to the top of the two support plates (4) respectively; The feed hopper (6) is arranged on the upper part of the mixing cylinder (5), one end of the feed hopper (6) is connected to the mixing cylinder (5), and the other end is connected to the outside; The two mounting blocks (7) are symmetrically arranged on opposite sides of the two mounting frames (3), respectively, and are located in two first sliding grooves of the two mounting frames (3), and the two mounting blocks (7) are slidably connected to the two mounting frames (3) along the two first sliding grooves; The rectangular frame (8) is transversely arranged on opposite sides of the two mounting frames (3), and the rectangular frame (8) is fixedly connected to the two mounting blocks (7) respectively; The telescopic tube (9) is arranged between the rectangular frame (8) and the mixing cylinder (5), the upper end of the telescopic tube (9) is connected to the mixing cylinder (5), and the connection point is located at the side of the mixing cylinder (5) away from the feeding hopper (6), and the lower end of the telescopic tube (9) is connected to the rectangular frame (8); The blowing preheating device is arranged on the upper part of the mixing cylinder (5), and the blowing preheating device is fixedly connected to the mixing cylinder (5); The mixing device is arranged on the side of the mixing cylinder (5) away from the feeding hopper (6), and the mixing device is connected to the mixing cylinder (5) and connected to the blowing preheating device; The screening device is arranged at the lower part of the mixing drum (5), and is connected to the mixing device, to the rectangular frame (8), and to the two mounting frames (3); The controller (10) is arranged on the side of the mixing mill body (2), the controller (10) is fixedly connected to the side of the mixing mill body (2), and the controller (10) is electrically connected to the blowing preheating device and the screening device respectively.

2. A rubber production and processing mill according to claim 1, characterized in that The blowing preheating device comprises a cylinder body (11), a driving cylinder (12), a piston (13), an air inlet pipe (14), an air outlet pipe (15), a blowing pipe (16), and a plurality of blowing heads (17); The cylinder body (11) is arranged above the mixing cylinder (5) and is located on the side of the feed hopper (6), and the bottom of the cylinder body (11) is fixedly connected to the top of the mixing cylinder (5); The driving cylinder (12) is arranged inside the cylinder body (11), at a side of the cylinder body (11) away from the feed hopper (6), and the driving cylinder (12) is fixedly connected to the inner wall of the cylinder body (11); The piston (13) is vertically arranged inside the cylinder body (11), the piston (13) is fixedly connected to the telescopic end of the driving cylinder (12), and the piston (13) is slidably connected to the cylinder body (11) along the inner wall of the cylinder body (11); The air intake pipe (14) is arranged on the side of the cylinder body (11) close to the feed hopper (6), one end of the air intake pipe (14) is connected to the cylinder body (11), and the other end is connected to the external hot air; The blowing pipe (16) is transversely arranged inside the mixing cylinder (5), close to the top inner wall of the mixing cylinder (5), and the blowing pipe (16) is fixedly connected to the top inner wall of the mixing cylinder (5); The air outlet pipe (15) is arranged at the bottom of the cylinder body (11) and passes through the top of the mixing cylinder (5); one end of the air outlet pipe (15) is connected to the mixing cylinder (5), and the other end is connected to the blowing pipe (16); A plurality of the air blowing heads (17) are vertically arranged at the lower part of the blowing pipe (16), one end of the plurality of air blowing heads (17) is connected to the blowing pipe (16), and the other end is connected to the inside of the mixing cylinder (5).

3. A rubber production and processing mill according to claim 2, characterized in that There are four supporting columns below the base (1).

4. A rubber production and processing mill according to claim 2, characterized in that The air inlet pipe (14) and the air outlet pipe (15) are both provided with one-way valves.

5. A rubber production and processing mill according to claim 2, characterized in that The mixing device comprises a first rotating shaft (18), a spiral roller (19), a one-way overrunning clutch (20), a worm gear (21), a support sleeve (41), a worm (22), a first gear (23), a first connecting bar (24), and a first rack (25); The first rotating shaft (18) is transversely arranged inside the mixing cylinder (5) and below the plurality of blowing heads (17); one end of the first rotating shaft (18) transversely penetrates the side of the mixing cylinder (5) away from the feeding hopper (6); the first rotating shaft (18) is rotatably connected to the mixing cylinder (5); The spiral roller (19) is arranged inside the mixing drum (5) and sleeved on the outside of the first rotating shaft (18). The axis of the spiral roller (19) coincides with the axis of the first rotating shaft (18). The spiral roller (19) is fixedly connected to the first rotating shaft (18). The one-way overrunning clutch (20) is arranged on the side of the mixing barrel (5) away from the feed hopper (6), and is sleeved on the outer side of the first rotating shaft (18). The axis of the one-way overrunning clutch (20) coincides with the axis of the first rotating shaft (18). The one-way overrunning clutch (20) is fixedly connected to the first rotating shaft (18); The worm wheel (21) is vertically arranged on the side of the mixing cylinder (5) and sleeved on the outer side of the one-way overrunning clutch (20). The axis of the worm wheel (21) coincides with the axis of the first rotating shaft (18). The worm wheel (21) is fixedly connected to the outer ring of the one-way overrunning clutch (20). The support sleeve (41) is arranged on the side of the mixing barrel (5) away from the feed hopper (6) and is located above and behind the worm gear (21). The side of the support sleeve (41) is fixedly connected to the mixing barrel (5); The worm (22) is vertically arranged on the side of the mixing barrel (5), at the rear side of the worm wheel (21), and passes through the interior of the support sleeve (41). The worm (22) is rotatably connected to the support sleeve (41), and the worm (22) is meshed with the worm wheel (21); The first gear (23) is transversely arranged on the side of the mixing cylinder (5) and sleeved on the outer side of the worm (22); the axis of the first gear (23) coincides with the axis of the worm (22); and the first gear (23) is fixedly connected to the worm (22); The connecting strip is transversely arranged on the side of the cylinder body (11) away from the feed hopper (6) and is located at the rear side of the first gear (23); one end of the connecting strip is fixedly connected to the piston (13), and the other end of the connecting strip passes through the side of the cylinder body (11) and is slidably connected to the cylinder body (11); The first rack (25) is transversely arranged on the side of the cylinder body (11) and is located between the first gear (23) and the first connecting bar (24); the first rack (25) is fixedly connected to the first connecting bar (24), and the first rack (25) is meshed with the first gear (23).

6. A rubber production and processing mill according to claim 5, characterized in that : A plurality of the blowing heads (17) are evenly distributed at the lower part of the blowing pipe (16).

7. A rubber production and processing mill according to claim 6, characterized in that : comprising a temperature sensor, wherein the temperature sensor is arranged inside the mixing cylinder (5) and is located on the side of the blowing pipe (16), and the temperature sensor is fixedly connected to the inner wall of the mixing cylinder (5).

8. A rubber production and processing mill according to claim 6, characterized in that The screening device comprises a threaded rod (26), a round rod (27), a second gear (28), a cam (29), a convex rod (30), a transverse plate (31), a spring (32), a second connecting bar (33), a second rack (34), a sieve plate (35), a moving ring (36), two sliders (37), a motor (38), an incomplete gear (39), and two third racks (40); The threaded rod (26) is transversely arranged in a first slide groove in the front mounting frame (3), passes through the mounting block (7), and passes through the side of the mounting frame (3) close to the feed hopper (6), and the threaded rod (26) is rotatably connected to the mounting frame (3) and is spirally connected to the mounting block (7); The round rod (27) is transversely arranged in a first slide groove in the rear mounting frame (3), and is arranged parallel to the threaded rod (26); the round rod (27) transversely penetrates the mounting block (7); and the round rod (27) is fixedly connected to the mounting frame (3); The second gear (28) is vertically arranged on the side of the mounting frame (3) close to the feed hopper (6), and is sleeved on the outer side of the threaded rod (26). The axis of the second gear (28) coincides with the axis of the threaded rod (26), and the second gear (28) is fixedly connected to the threaded rod (26); The cam (29) is arranged inside the mixing cylinder (5), above the second gear (28), and sleeved on the outside of the first rotating shaft (18). The cam (29) is fixedly connected to the first rotating shaft (18); The convex rod (30) is vertically arranged at the lower part of the mixing cylinder (5), below the cam (29), and the convex rod (30) vertically penetrates the bottom of the mixing cylinder (5), and the convex rod (30) is vertically slidably connected to the mixing cylinder (5); The transverse plate (31) is disposed transversely below the mixing cylinder (5) and is located directly below the protruding rod (30), and the top of the transverse plate (31) is fixedly connected to the bottom of the protruding rod (30); The spring (32) is vertically arranged between the mixing cylinder (5) and the horizontal plate (31), and is sleeved on the outer side of the protruding rod (30); the upper end of the spring (32) is fixedly connected to the mixing cylinder (5), and the lower end is fixedly connected to the top of the horizontal plate (31); The second connecting strip (33) is vertically arranged below the transverse plate (31) and behind the second gear (28), and the upper end of the connecting strip is fixedly connected to the bottom of the transverse plate (31); The second rack (34) is vertically arranged between the second gear (28) and the second connecting bar (33), the second rack (34) is fixedly connected to the second connecting bar (33), and the second rack (34) is meshed with the second gear (28); The sieve plate (35) is transversely arranged inside the rectangular frame (8), the sieve plate (35) passes through the front and rear parts of the rectangular frame (8), and the sieve plate (35) is connected to the rectangular frame (8) in a front-rear sliding manner; The movable ring (36) is arranged inside the rectangular frame (8), close to the left inner wall of the rectangular frame (8), and below the sieve plate (35); the top of the movable ring (36) is fixedly connected to the bottom of the sieve plate (35); The two sliders (37) are arranged in the rectangular frame (8) in a vertically symmetrical manner, the two sliders (37) are connected to the inner wall of the rectangular frame (8) in a forward and backward sliding manner, and the two sliders (37) are fixedly connected to the moving ring (36) respectively; The motor (38) is arranged on the side of the rectangular frame (8) close to the feed hopper (6), the rotating shaft of the motor (38) passes through the rectangular frame (8) and extends to the inside of the moving ring (36), and the motor (38) is fixedly connected to the rectangular frame (8); The two third racks (40) are symmetrically arranged inside the moving ring (36) in an upper and lower manner, and the two third racks (40) are respectively fixedly connected to the upper inner wall and the lower inner wall of the moving ring (36); The incomplete gear (39) is vertically arranged inside the moving ring (36), sleeved on the outside of the rotating shaft of the motor (38), and located between the two third racks (40). The axis of the incomplete gear (39) coincides with the axis of the rotating shaft of the motor (38). The incomplete gear (39) is fixedly connected to the rotating shaft of the motor (38), and the incomplete gear (39) is respectively meshed with the two third racks (40).

9. A rubber production and processing mill according to claim 8, characterized in that The mounting block (7) at the rear side is slidably connected to the round rod (27) along the round rod (27).

10. A rubber production and processing mill according to claim 1, characterized in that The two mounting frames (3) are fixedly connected to the mixing mill body (2) by welding.

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