Double-layer automatic ramming open mill

Abstract

The utility model relates to the technical field of open mills, and discloses a double-layer automatic ramming open mill which comprises an open mill and a lifting device, the open mill comprises two racks arranged on a base, the racks are provided with two pairs of rollers which are parallel up and down, the two ends of each roller are connected with roller seats, and the roller seats are movably arranged in mounting notches of the racks; a conveying slope is arranged at the top of the base, a conveying belt assembly is movably arranged on the conveying slope, air cylinders are installed on the two sides of the conveying slope respectively, and air cylinder connecting bases are installed at the output ends of the air cylinders and connected with a frame body of the conveying belt assembly. Guide rails are arranged on the two sides of the conveying slope, the conveying belt assembly is provided with sliding blocks, and the sliding blocks are in sliding connection with the guide rails in a matched mode. The lifting device is provided with a lifting hopper, and the lifting hopper can be lifted upwards to supply materials to the feeding hopper and reset downwards to bear the materials conveyed by the conveying belt assembly. According to the automatic rubber turning device, automatic rubber turning and circulating feeding rubber mixing of the open mill are realized, and the working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of open mill, especially to a double-layer automatic material ramming open mill. BACKGROUND

[0002] In rubber and plastic processing, the open mill needs to process repeatedly when plasticizing or mixing rubber, the traditional open mill processes rubber manually, repeatedly delivers and processes repeatedly until the open mill is completed, the repeated cycle rubber mixing work is high in intensity, low in efficiency and low in safety, the rubber mixing degree cannot be accurately controlled, and manpower and material resources are wasted.

[0003] Therefore, the application provides a double-layer automatic material ramming open mill, which realizes automatic rubber turning and cycle feeding and mixing of the open mill, and improves the work efficiency through the double-layer roller group. UTILITY MODEL CONTENT

[0004] Therefore, the utility model discloses a double-layer automatic material ramming open mill, which realizes automatic rubber turning and cycle feeding and mixing of the open mill, and improves the work efficiency through the double-layer roller group.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A double-layer automatic material ramming open mill, comprising an open mill and a lifting device located at the rear side of the open mill, the open mill comprising a base and two spaced and opposite racks arranged on the base, the racks being provided with two pairs of rollers parallel to each other, the base being provided with two double-output speed reducers stacked vertically at the end away from the racks, the double-output speed reducers being connected with two roller drive motors, the two output ends of each double-output speed reducer being connected with a pair of rollers through a universal transmission shaft, the two ends of each roller being connected with a roller seat, the roller seat being movably arranged in the mounting slot of the rack; the top of the base is provided with a conveying slope located between the two racks, the conveying slope is movably provided with a conveying belt assembly, the two sides of the conveying slope are respectively provided with a cylinder, the output end of the cylinder is provided with a cylinder connecting seat, and the cylinder connecting seat is connected with the frame of the conveying belt assembly; the two sides of the conveying slope are respectively provided with a slide rail, the frame bottom of the conveying belt assembly is respectively provided with a slide seat, and the slide seat is slidably connected with the slide rail; the top of each pair of rollers is provided with a feeding hopper; the rack is provided with two cutter assemblies below each pair of rollers, the lifting device has a lifting hopper, and the lifting hopper can be lifted upward to feed the feeding hopper and reset downward to receive the material conveyed by the conveying belt assembly.

[0007] Further, the lifting device comprises a lifting support, a reverse L-shaped guide support is arranged on the front side of the lifting support, and a reverse L-shaped guide groove is arranged in the guide support; a driving shaft is rotatably arranged on the top of the lifting support, and the driving shaft is driven by a lifting motor; driving sprockets are fixed on both ends of the driving shaft, respectively; driven sprockets are rotatably arranged on both sides of the bottom of the lifting support; the driving sprocket and the driven sprocket on the same side are connected by a chain, and the chain is movably connected with a lifting bucket.

[0008] Further, a rear shaft is fixed on the chain, a lifting bucket rear wheel is rotatably arranged on the rear shaft, the lifting bucket rear wheel is located in the chain groove of the lifting support, the rear shaft is rotatably connected with a hopper connecting seat through a bearing, the hopper connecting seat is fixed on the lifting bucket, a front shaft is fixed on the top of the lifting bucket, lifting bucket front wheels are rotatably connected on both ends of the front shaft, and the lifting bucket front wheels are located in the guide groove arranged in the guide support.

[0009] Further, two connecting arms are arranged on both sides of the lifting device, respectively, and the end portions of the connecting arms at the same height are connected with rack beams, and the rack beams are connected between two racks.

[0010] Further, a roll gap adjusting device is arranged on the front side of the rack at both ends of each pair of rollers.

[0011] Further, the roll gap adjusting device comprises a roll gap adjusting motor, a turbine box is connected with the motor shaft of the roll gap adjusting motor, an internal thread is arranged on the output end of the turbine box, the internal thread is engaged with the external thread of the outer end of a screw rod, an adjusting nut is threadedly connected with the outer side of the screw rod, the adjusting nut is rotatably installed in the rack, and only has the freedom of rotation around the axis thereof and no axial movement freedom; the inner end of the screw rod is rotatably connected with the roller seat of the front side roller, and the inner side surface top and bottom of the roller seat are respectively provided with ears, and the ears are attached to the inner side surface of the rack.

[0012] Further, a baffle is arranged on both sides of each pair of rollers, respectively, and the baffle is fixed on the rack through a baffle seat.

[0013] Further, the cutter assembly comprises a material scraping cutter seat, a material scraping cutter is installed on the material scraping cutter seat, a blade pressing plate is arranged on the outer side of the material scraping cutter, and the material scraping cutter seat, the material scraping cutter and the blade pressing plate are fixedly connected through fasteners; material scraping plate seats are fixed on both ends of the material scraping cutter seat, support plates are arranged on the outer side of the material scraping plate seats, the middle portions of the support plates and the material scraping plate seats are rotatably connected with the rack through pin shafts, the top of the support plate is in an arc-shaped structure, is clamped on the bottom of the convex ring on the inner side of the roller seat, forms positioning constraint, and the support plate is kept fixed and non-rotatable; eccentric handle wheels are arranged on the end portions of the support plates, and the eccentric handle wheels are located on the top of the material scraping plate seat.

[0014] Further, the frame is provided with a material tamping device, the material tamping device comprises a fixed seat, one side of the fixed seat is provided with one or more guide rails, the guide rails are slidably connected with sliding blocks, the sliding blocks are fixedly provided with cantilever arms, the cantilever arms are fixedly provided with moving motors at the top ends, the moving motors are fixedly provided with moving gears at the output ends, the moving gears are in meshing connection with a moving rack provided at the top of the fixed seat, the bottom of the cantilever arm is fixedly provided with a telescopic sleeve, the top of the telescopic sleeve is fixedly provided with a telescopic motor, the telescopic motor is fixedly provided with a telescopic gear at the output end, the bottom of the telescopic sleeve is movably provided with a telescopic shaft, the top of the telescopic shaft is provided with a telescopic rack, and the telescopic gear is in meshing connection with the telescopic rack to drive the telescopic shaft to move along the telescopic sleeve.

[0015] Further, an open linear bearing is arranged between the telescopic shaft and the inner cavity of the telescopic sleeve, the telescopic rack is located at the opening of the open linear bearing, and the end, away from the telescopic rack, of the telescopic shaft is rotatably connected with a rotating sleeve through a bearing. Advantages

[0016] Compared with the prior art, the utility model at least has the following advantages:

[0017] 1. The utility model discloses a linkage design of lifting device feeding and conveying belt assembly returning material to the lifting hopper, which completes the automatic feeding of material, the circulation of returned material after rolling, and solves the problem of traditional open mill relying on manual delivery of rubber material.

[0018] 2. The material tamping device reciprocally pushes and pulls the rubber sheet between the first layer and the second layer of rollers to replace the manual folding operation of the triangular bag, thereby reducing the labor intensity.

[0019] 3. The utility model discloses a double-layer roller, which can roll and thin the material step by step through the upper and lower pairs of rollers, and the rolling precision is higher and the rubber sheet thickness is more uniform compared with the traditional single-layer roller.

[0020] 4. The roller gap adjusting device formed by the roller gap adjusting motor, the turbine box, the screw and the nut adjusts the roller gap, and the guide constraint of the roller seat ear part prevents the roller from being horizontally deviated.

[0021] 5. The cutter assembly can clean the material adhered to the surface of the roller in real time, avoids the influence of residual material on the subsequent rolling effect, and further guarantees the surface finish of the rubber sheet. DETAILED DESCRIPTION

[0022] Figure 1 It is a structural schematic view of the utility model.

[0023] Figure 2This is a side view of the structure of this utility model.

[0024] Figure 3 This is a partial structural schematic diagram of the lifting device and conveyor belt assembly of this utility model.

[0025] Figure 4 This is a schematic diagram of the lifting device of this utility model.

[0026] Figure 5 This is a schematic diagram of the connection structure between the cutter assembly and the frame of this utility model.

[0027] Figure 6 This is a schematic diagram of the roller gap adjustment device of this utility model.

[0028] Figure 7 This is a schematic diagram of the material tamping device of this utility model.

[0029] Figure 8 This utility model Figure 7 A schematic diagram of the longitudinal cross-sectional structure.

[0030] Figure 9 This utility model Figure 8 A partially enlarged structural diagram.

[0031] Figure 10 This is a schematic diagram of the internal structure of the telescopic sleeve of this utility model.

[0032] Figure 11 This is a schematic diagram of the longitudinal section of the telescopic sleeve and its interior of the present invention.

[0033] Figure 12 This is a schematic diagram of the telescopic sleeve of this utility model.

[0034] The diagram is labeled as follows: 100-Open mill; 200-Lifting device; 1-Base; 2-Frame; 3-Roller; 4-Roll seat; 5-Roll gap adjustment device; 50-Roll gap adjustment motor; 51-Turbine box; 52-Adjusting nut; 53-Screw; 6-Feed hopper; 7-Roller drive motor; 8-Double-outlet reducer; 9-Universal drive shaft; 10-Cylinder; 11-Conveyor belt assembly; 12-Conveying ramp; 13-Slide rail; 14-Slide seat; 15-Cylinder connecting seat; 16-Compactor; 160-Fixed seat; 161-Moving rack; 162-Moving gear; 163-Cantilever; 164-Telescopic sleeve; 1640-Drive space; 1641-Guide groove; 1642-Telescopic space; 165-Telescopic shaft; 1650-Telescopic rack; 1651-Open linear bearing; 165 2-Setting section; 1653-Drive section; 1654-Rotating sleeve; 166-Moving motor; 167-Telescopic motor; 1670-Telescopic gear; 168-Guide rail; 169-Slider; 17-Lifting bracket; 170-Chain groove; 18-Lifting drive motor; 19-Drive shaft; 20-Chain; 21-Driven sprocket; 22-Rear shaft; 23-Hopper connecting seat; 24-Front shaft; 25-Lifting bucket front wheel; 26-Lifting bucket rear wheel; 27-Lifting bucket; 28-Guide bracket; 280-Guide groove; 29-Limiting beam; 30-Connecting arm; 31-Frame beam; 32-Baffle seat; 33-Baffle; 34-Support plate; 35-Eccentric handle wheel; 36-Scraper seat; 37-Scraper seat; 38-Blade pressure plate; 39-Scraper; 40-Ear; 41-Mounting slot. Detailed Implementation

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, a detailed description is provided below in conjunction with the accompanying drawings and specific embodiments. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] See Figures 1-12 This embodiment provides a double-layer automatic mixing mill, including a mixing mill 100 and a lifting device 200 located at the rear of the mixing mill. The mixing mill 100 includes a base 1 and two spaced and opposite frames 2 disposed on the base 1. Two connecting arms 30 are respectively provided on both sides of the lifting device 200, and the ends of the two connecting arms 30 are connected to frame beams 31. The frame beams 31 connect between the two frames 2. The frame 2 is provided with two pairs of vertically parallel rollers 3. Roller seats 4 connected to both ends of each roller 3 are movably disposed in the mounting slots 41 of the two frames 2. Ears 40 are provided on the top and bottom of the inner side of the roller seats 4, respectively, extending upward and downward, and fit against the inner side of the frame 2. Baffles 33 are respectively provided on both sides of the top of each pair of rollers 3, and the baffles 33 are fixed to the frame 2 by baffle seats 32. Two double-output reducers 8, stacked vertically, are installed at the end of the base 1 furthest from the frame 2. Each double-output reducer 8 is connected to two roller drive motors 7. The two output ends of each double-output reducer are connected to a pair of rollers 3 via universal joints 9. The two ends of the universal joints 9 are connected to the output ends of the double-output reducers 8 and the rotating shafts of the rollers 3 via couplings. The two double-output reducers 8 drive the upper and lower pairs of rollers 3 respectively.

[0039] Feed hoppers 6 are provided on the top of the two frames 2; a conveying ramp 12 is provided on the top of the base 1 between the two frames 2, and the conveying ramp 12 is located below the rollers 3. A conveyor belt assembly 11 is movably mounted on the conveying ramp 12. The conveyor belt assembly 11 includes two frames and two conveying rollers rotatably connected between the two frames. A conveyor belt is sleeved on the outer side of the two conveying rollers, and one of the conveying rollers is connected to a conveyor motor. Cylinders 10 are installed on both sides of the conveying ramp 12. A cylinder connecting seat 15 is installed at the output end of the cylinder 10 and is connected to the frame of the conveyor belt assembly 11. Slide rails 13 are provided on both sides of the conveying ramp 12. Two sliding blocks 14 are provided on both sides of the bottom of the frame of the conveyor belt assembly 11. The sliding blocks 14 are adapted to slide rails 13. The conveyor belt assembly 11 is driven by the cylinders 10 to move back and forth along the slide rail direction to transport materials to the lifting device 200.

[0040] The frame 2 has two cutting assemblies located below each pair of rollers 3. The two cutting assemblies are symmetrically arranged and located on both sides of the bottom of the roller pressing gap. Each cutting assembly includes a scraper holder 37, on which a scraper 39 is mounted. A blade pressure plate 38 is provided on the outer side of the scraper 39. The scraper holder 37, scraper 39, and blade pressure plate 38 are fixed together by screws and nuts. Scraper plate seats 36 are fixed to both ends of the scraper holder 37. A support plate 34 is provided on the outer side of the scraper plate seat 36. The middle part of the support plate 34 and the scraper plate seat 36 is rotatably connected to the frame 2 by a pin. The top of the support plate 34 has an arc-shaped structure and is locked into the bottom of the convex ring on the inner side of the roller seat 4, forming a positioning constraint to keep the support plate 34 fixed and non-rotating. An eccentric handle wheel 35 is provided at the end of the support plate 34, and the eccentric handle wheel 35 is located on the top of the scraper plate seat 36. When it is necessary to scrape off the material adhering to the roller 3, rotate the eccentric handle wheel 35 to press down the scraper plate seat 36. The scraper plate seat 36 rotates around the rotating connection point, causing the scraper blade 39 to move upward and contact the surface of the roller 3 to clean the material adhering to the surface of the roller 3.

[0041] The lifting device 200 includes a lifting bracket 17. An inverted L-shaped guide bracket 28 is provided on the front side of the lifting bracket 17. A limiting beam 29 is connected to the top of the two guide brackets 28 to enhance the rigidity of the top structure of the guide brackets 28. The guide bracket 28 is provided with a guide groove 280, which is inverted L-shaped and includes a vertical section and a horizontal section, with a smooth transition between the two sections using an arc structure. A drive shaft 19 is rotatably mounted on the top of the lifting bracket 17. A lifting motor 18 is connected to the drive shaft 19 via a reducer, and the drive shaft 19 is driven to rotate by the lifting motor 18. Drive sprockets are fixed to both ends of the drive shaft 19. Driven sprockets 21 are rotatably mounted on both sides of the bottom of the lifting bracket 17. The drive sprockets and the driven sprockets 21 on the same side are driven by a chain 20. A lifting bucket 27 is movably connected to the chain 20. Specifically, a rear axle 22 is connected to the chain 20, and the rear axle 22 is rigidly fixed to the chain links of the chain 20. The rear axle 22 is rotatably mounted with a lifting bucket rear wheel 26, which is embedded in the chain groove 170 of the lifting bracket 17 for placing the chain. The vertical section of the guide groove 280 is parallel to the chain groove. Two bucket connecting seats 23 are rotatably mounted on the rear axle 22 via bearings, and the lifting bucket 27 is fixed to the bucket connecting seats 23. The top of the lifting bucket 27 is fixed with a front axle 24, and the two ends of the front axle 24 are rotatably connected with lifting bucket front wheels 25, which are embedded in the guide groove 280 of the guide bracket 28. The lifting motor 18 rotates forward, causing the drive shaft 19 to rotate. The drive sprocket rotates accordingly, driving the driven sprocket 21 to rotate via the chain 20. The lifting bucket 27 moves upward with the chain. The rear wheel 26 and front wheel 25 of the lifting bucket limit the movement of the lifting bucket 27. When the lifting bucket 27 reaches the top of the guide bracket 28, the front wheel 25 moves towards the horizontal section of the guide groove, while the bottom of the lifting bucket 27 continues to move upward, causing the lifting bucket 27 to rotate around the rear shaft 22. Under the action of gravity, the material is accurately poured into the feed hopper 6. After the pouring is completed, the lifting motor 18 reverses, causing the lifting bucket 27 to move downward and reset to the position corresponding to the conveyor belt assembly 11. This achieves the lifting bucket 27 being lifted upward to provide material to the feed hopper 6 and lowered downward to reset to receive material conveyed by the conveyor belt assembly 11.

[0042] The front side of the frame 2 is provided with roller gap adjustment devices 5 at both ends of each pair of rollers 3. The roller gap adjustment device 5 includes a roller gap adjustment motor 50, the motor shaft of which is connected to a turbine housing 51. The output end of the turbine housing 51 is provided with an internal thread hole, which engages with the external thread of the end of the screw 53 away from the roller seat 4. The outer thread of the screw 53 is connected to an adjusting nut 52, which is rotatably installed inside the frame. The adjusting nut 52 can only rotate around its own axis and has no axial movement freedom. The end of the screw 53 near the roller seat 4 is rotatably connected to a mounting seat 54 on the roller seat 4. The top and bottom of the inner side of the roller seat 4 are provided with ears 40, which fit against the inner side of the frame 2 and provide guidance and limitation. During operation, the roller gap adjusting motor 50 drives the turbine inside the turbine housing 51 to rotate. The turbine drives the screw 53 to rotate through threaded engagement. When the screw 53 rotates, it engages with the adjusting nut 52, forcing the screw 53 to move linearly along the axial direction. The axial thrust of the screw 53 is transmitted to the roller seat 4 through its end, pushing the roller seat 4 to move the roller 3 in translation, thus achieving roller gap adjustment. Through the sliding engagement between the ear 40 and the inner side of the frame 2, the roller seat 4 is precisely guided, preventing the roller 3 from shifting laterally during roller gap adjustment or operation.

[0043] The frame is equipped with a tamping device 16, which includes a fixed base 160. Two guide rails 168 are arranged parallel to each other on the side of the fixed base 160. A slider 169 is slidably connected to the guide rails 168. A cantilever 163 is fixed to the slider 169. A moving motor 166 is fixed to the top of the cantilever 163. A moving gear 162 is fixed to the output end of the moving motor 166. The moving gear 162 is meshed with a moving rack 161 provided on the top of the fixed base 160. A telescopic sleeve 164 is fixed to the bottom of the cantilever 163, and a telescopic motor 167 is fixed to the top of the telescopic sleeve 164. A telescopic gear 1670 is fixed to the telescopic motor 167, and the telescopic gear 1670 is located in the drive space 1640 at the top of the telescopic sleeve 164. A telescopic shaft 165 is movably arranged within the telescopic space 1642 at the bottom of the telescopic sleeve 164. The telescopic shaft 165 includes a drive section 1653 and a sleeve section 1652. The outer diameter of the sleeve section 1652 is smaller than the outer diameter of the drive section 1653. A groove is formed at the top of the drive section 1653, and a telescopic rack 1650 is fixedly arranged within the groove. The telescopic rack 1650 is arranged along the length of the telescopic shaft 165. The telescopic gear 1670 meshes with the telescopic rack 1650, driving the telescopic shaft 165 to move. An open linear bearing 1651 is provided between the drive section 1653 and the side wall of the telescopic space 1642 of the telescopic sleeve 164. The open linear bearing 1651 is fixed to the side wall of the telescopic space 1642 of the telescopic sleeve 164 to reduce friction when the telescopic shaft 165 moves. The opening of the open linear bearing 1651 faces the telescopic rack 1650, and the telescopic rack 1650 is located at the opening of the open linear bearing 1651. A guide groove 1641 is provided at the top of the telescopic space 1642, and the telescopic rack 1650 slides within the guide groove 1641. The sleeve section 1652 of the telescopic shaft is rotatably connected to a rotating sleeve 1654 via a bearing. The outer end of the rotating sleeve 1654 has an arc-shaped structure. In the initial state, the rotating sleeve 1654 is fully retracted into the telescopic sleeve 164 and located outside the working area of ​​the open mill roller. After extending, it can be precisely positioned in the film working area below the first layer roller 3, and the slider is located in the initial position at one end of the guide rail. Telescopic motor 167 starts, telescopic shaft 165 extends, and rotating sleeve 1654 reaches below roller 3 of the first layer and contacts the left edge of the film. Moving motor 166 starts, driving slider 169 to move right along guide rail 168, and rotating sleeve 1654 moves right simultaneously, pushing the film to the right along the roller to gather and stack. After slider 169 moves to the preset position on the right end of the film, telescopic shaft 165 retracts, and rotating sleeve 1654 detaches from the film and returns to the outside of the working area. Moving motor 166 continues to drive slider 169 to move right to the outside of the right end of the film; at this time, rotating sleeve 1654 is in the outer space on the right side of the film along with slider 169. Telescopic shaft 165 extends, and rotating sleeve 1654 reaches below the roller and contacts the right edge of the film.The moving motor 166 starts in reverse, the slider 169 moves to the left, and the rotating sleeve 1654 moves to the left simultaneously, pushing the film to the left to gather and stack. After the slider 169 moves to the preset position at the left end of the film, the telescopic shaft 165 retracts, and the rotating sleeve 1654 returns to the outside of the working area. The slider 169 moves to the left to the outside of the left end of the film, and the above process is repeated to realize the left-right reciprocating push-pull stacking of the film.

[0044] Working principle: Material is placed in the lifting bucket 27. The lifting motor 18 rotates forward, and the lifting bucket 27 moves upward with the chain 20. The rear wheel 26 and the front wheel 25 of the lifting bucket limit the movement of the lifting bucket 27. When the lifting bucket 27 moves to the top of the guide bracket 28, it pours material into the feed hopper 6 of the open chain mill 100. After pouring, the lifting motor 18 reverses, causing the lifting bucket 27 to move downward and reset. The material entering from the feed hopper 6 is rolled and thinned by the upper and lower pairs of rollers 3. The material adhering to the roller surface is scraped off by the cutter assembly and falls down with the main material, falling above the conveyor belt assembly 11. The conveyor belt assembly 11 then conveys the material forward. During the conveying process, the entire conveyor belt assembly 11 moves forward to directly above the lifting bucket 27 under the drive of the cylinder 10, so that the material conveyed by the conveyor belt assembly 11 finally falls accurately into the lifting bucket 27, which is reset at the bottom of the lifting device 200, preventing material spillage. The above steps are repeated to achieve automatic cyclic feeding of the open mill. The material mixing device pushes and pulls the material output from the first layer of rollers back and forth, replacing the manual operation of repeatedly stacking triangles. This achieves fully automatic circulating rubber mixing of the open mill, eliminating the need for personnel to repeatedly fold and feed the rubber material, and greatly improving work efficiency.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A two-layer automatic mastication mill, characterized by, The application relates to an open mill and a lifting device arranged at the rear side of the open mill, wherein the open mill comprises a base and two spaced-apart and opposite racks arranged on the base, the racks are provided with two pairs of rollers arranged in parallel, the base is provided with two double-output speed reducers arranged in a stack at the end away from the racks, the double-output speed reducers are connected with two roller driving motors, the two output ends of each double-output speed reducer are connected with a pair of rollers through universal transmission shafts, the two ends of each roller are connected with roller seats, and the roller seats are movably arranged in the mounting slots of the racks; the top of the base is provided with a conveying slope arranged between the two racks, the conveying slope is movably provided with a conveying belt assembly, the two sides of the conveying slope are respectively provided with air cylinders, the output ends of the air cylinders are provided with air cylinder connecting seats, and the air cylinder connecting seats are connected with the frame of the conveying belt assembly; the two sides of the conveying slope are respectively provided with slide rails, the bottom of the frame of the conveying belt assembly is respectively provided with slide seats, and the slide seats are slidably connected with the slide rails; the top of each of the two racks is provided with a feeding hopper; the racks are provided with two cutter assemblies below each pair of rollers, and the lifting device is provided with a lifting hopper which can be lifted upwards to feed the feeding hopper and reset downwards to receive the materials conveyed by the conveying belt assembly.

2. A twin-shaft automatic masticating mill according to claim 1, wherein The lifting device comprises a lifting support, the front side of the lifting support is provided with a reverse L-shaped guide support, the guide support is provided with a reverse L-shaped guide groove, the top of the lifting support is rotatably provided with a driving shaft, the driving shaft is driven by a lifting motor, the two ends of the driving shaft are respectively fixed with driving sprockets, the bottom of the lifting support is rotatably provided with driven sprockets on the two sides, the driving sprocket and the driven sprocket on the same side are connected through a chain, and the chain is movably connected with the lifting hopper.

3. A twin-shaft automatic masticating mill according to claim 2, wherein The chain is fixed with a rear shaft, the rear shaft is rotatably provided with a lifting hopper rear wheel, the lifting hopper rear wheel is arranged in the chain groove of the lifting support, the rear shaft is rotatably connected with a hopper connecting seat through a bearing, the hopper connecting seat is fixed on the lifting hopper, the top of the lifting hopper is fixed with a front shaft, the two ends of the front shaft are rotatably connected with lifting hopper front wheels, and the lifting hopper front wheels are arranged in the guide groove of the guide support.

4. A twin-shaft automatic masticating mill according to claim 1, wherein The lifting device is provided with two connecting arms on the two sides, the connecting arms at the same height are connected with rack beams at the ends, and the rack beams are connected between the two racks.

5. A twin-shaft automatic masticating mill according to claim 1, wherein The front side of the rack is provided with a roller spacing adjusting device at the two ends of each pair of rollers.

6. A twin-shaft automatic masticating mill according to claim 5, wherein The roller spacing adjusting device comprises a roller spacing adjusting motor, the motor shaft of the roller spacing adjusting motor is connected with a turbine box, the output end of the turbine box is provided with an internal thread, the internal thread is engaged with the external thread of a screw rod, the outer side of the screw rod is connected with an adjusting nut, the adjusting nut is rotatably arranged in the rack, and the adjusting nut can only rotate around the axis and has no axial movement freedom; the inner end of the screw rod is rotatably connected with the roller seat of the front roller, the inner side of the top and bottom of the roller seat is respectively provided with an ear, and the ear is attached to the inner side of the rack.

7. A twin-shaft automatic masticating mill according to claim 1, wherein The two sides of each pair of rollers are respectively provided with baffle plates, and the baffle plates are fixed on the rack through baffle plate seats.

8. A twin-shaft automatic masticating mill according to claim 1, wherein The cutter assembly comprises a material scraping cutter seat, a material scraping cutter is mounted on the material scraping cutter seat, a blade pressing plate is arranged on the outer side of the material scraping cutter, the material scraping cutter seat, the material scraping cutter and the blade pressing plate are fixedly connected through fasteners; both ends of the material scraping cutter seat are fixedly provided with material scraping plate seats, support plates are arranged on the outer sides of the material scraping plate seats, the support plates and the middle parts of the material scraping plate seats are rotationally connected with the rack through pin shafts, the top of the support plate is in an arc-shaped structure, is clamped on the bottom of the convex ring on the inner side of the roller seat, forms positioning constraint, and the support plate is kept from rotating; eccentric handle wheels are arranged at the end of the support plate, and the eccentric handle wheels are located on the top of the material scraping plate seat.

9. A twin-shaft automatic masticating mill according to claim 1, wherein The rack is provided with a material tamping device, the material tamping device comprises a fixed seat, one or more guide rails are arranged on the side of the fixed seat, a sliding block is slidably connected with the guide rail, a cantilever is fixedly connected with the sliding block, a moving motor is fixedly connected with the top end of the cantilever, a moving gear is fixedly connected with the output end of the moving motor, the moving gear is meshingly connected with a moving rack arranged on the top of the fixed seat, a telescopic sleeve seat is fixedly connected with the bottom of the cantilever, a telescopic motor is fixedly connected with the top of the telescopic sleeve seat, a telescopic gear is fixedly connected with the output end of the telescopic motor, a telescopic shaft is movably arranged on the bottom of the telescopic sleeve seat, a telescopic rack is arranged on the top of the telescopic shaft, and the telescopic gear is meshingly connected with the telescopic rack to drive the telescopic shaft to move along the telescopic sleeve seat.

10. A twin-shaft automatic masticating mill according to claim 9, wherein An open linear bearing is arranged between the telescopic shaft and the inner cavity of the telescopic sleeve seat, the telescopic rack is located at the opening of the open linear bearing, and a rotating sleeve is rotationally connected with the end of the telescopic shaft away from the telescopic rack through a bearing.

Images