A rubber roller temperature control system for an intelligent rubber roller rice huller

Abstract

The present invention discloses a temperature control system for the rubber rollers of an intelligent rubber roller rice huller, comprising a controller, a temperature sensor for detecting the temperature of the rubber rollers and connected to the controller signal, two cold air knives for cooling the circumference of the two rubber rollers, an air inlet pipe for introducing compressed air from a compressor, a solenoid valve, a cooler, a cold air pipe connected to the cold air outlet of the cooler, and two connecting air pipes connected between the cold air pipes and the cold air knives. The operation process of the rubber roller temperature control system is as follows: when the temperature sensor detects the temperature of the rubber roller in real time and transmits the data to the controller, when the temperature of the rubber roller rises to a maximum set value, the controller controls the solenoid valve to automatically open, and compressed air flows along the air inlet pipe, the cooling of the cooler, the cold air pipe, and the connecting air pipe into the cold air knife, spraying the cold air evenly around the circumference of the rubber roller to achieve cooling. When the temperature of the rubber roller drops to a minimum set value, the controller controls the solenoid valve to automatically close.

Description

Technical Field

[0001] The present invention relates to the technical field of rice hullers, and in particular to a rubber roller temperature control system of an intelligent rubber roller rice huller. Background Art

[0002] The rubber roller huller is a crucial piece of equipment in rice processing. Its primary working components are a pair of parallel, elastic rubber rollers that rotate in opposite directions at different speeds. Once the rice enters the hulling zone, it is squeezed and rubbed against the rollers, creating a tearing effect that breaks the husk and separates it from the brown rice.

[0003] For rubber-roller rice hullers, the quality of the rubber rollers significantly impacts the hulling process. As the two rollers rotate at high speed, they continuously rub against the rice, generating heat that increases the roller's operating temperature. This reduces the rubber's hardness and wear resistance, impacting hulling quality. This reduces the hulling rate and increases rubber consumption. To maintain this rate, the pressure between the rollers must be increased, which significantly increases rubber and energy consumption and increases the breakage rate of the unripe rice. Measurements indicate that the optimal operating temperature for the rubber rollers is below 50°C (when operating above 60°C, the roller's hardness decreases by 4-8°C). Therefore, a system for controlling the rubber roller's temperature is urgently needed to maintain a suitable operating temperature. Summary of the Invention

[0004] The purpose of the present invention is to provide a rubber roller temperature control system for an intelligent rubber roller rice husker, which ensures the quality of rice husking by controlling the working temperature of the rubber roller within a suitable range.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a rubber roller temperature control system for an intelligent rubber roller rice husker, characterized in that it includes a controller, a temperature sensor for detecting the temperature of the rubber roller and connected to the controller signal, two cold air knives for respectively cooling the circumference of the two rubber rollers, an air inlet pipe for introducing air from a compressor, a solenoid valve provided on the air inlet pipe and connected to the controller signal, a cooler connected to the air inlet pipe and cooling the compressed air from the air inlet pipe, a cold air pipe connected to the cold air outlet of the cooler, and two connecting air pipes connected between the cold air pipes and the cold air knives; the control process of the rubber roller temperature control system is as follows: when the temperature sensor detects the temperature of the rubber roller in real time and transmits the data to the controller, when the temperature of the rubber roller rises to a maximum set value, the controller controls the solenoid valve to automatically open, and compressed air enters the cold air knife along the air inlet pipe, the cooling of the cooler, the cold air pipe, and the connecting air pipe, and the cold air is evenly sprayed on the circumference of the rubber roller to achieve cooling; when the temperature of the rubber roller drops to a minimum set value, the controller controls the solenoid valve to automatically close.

[0006] The present invention is further configured as follows: the two rubber rollers of the rubber roller rice huller are divided into a movable rubber roller and a fixed rubber roller; the movable rubber roller adjusts its position around the hinge point of the swing arm through a swing arm cylinder structure; a first bracket for mounting on the frame of the rice huller is provided on the cold air knife near the movable rubber roller; a second bracket for mounting on the frame of the rice huller is provided on the cold air knife near the fixed rubber roller; the first bracket includes an arc-shaped plate for mounting on the frame of the rice huller and whose center line coincides with the hinge axis of the swing arm, a first sliding bracket for mounting the cold air knife and slidingly arranged on the arc-shaped plate, and a second bracket arranged on the arc-shaped plate and the second bracket. The first locking bolt between the first and second sliding frames, the arc plate is located obliquely below the side of the movable rubber roller away from the fixed rubber roller, and the air outlet of the cold air knife installed on the first sliding frame is aligned with the rotation axis of the movable rubber roller; the second bracket includes a mounting plate for installation on the frame of the rice huller, a second sliding frame for mounting the cold air knife and slidingly arranged on the mounting plate, and a second locking bolt arranged between the mounting plate and the second sliding frame, the mounting plate is located obliquely above the side of the fixed rubber roller away from the movable rubber roller, and the air outlet of the cold air knife installed on the second sliding frame is aligned with the rotation axis of the fixed rubber roller.

[0007] The present invention is further configured as follows: the cold air knife includes a main shell having a long air outlet, an air inlet pipe arranged at one end of the main shell, and two adjusting air plates, the main shell is symmetrically provided with inclined plate portions on the upper and lower surfaces of the long air outlet, the two adjusting air plates are respectively slidably arranged on the two inclined plate portions, an elastic component is provided between the adjusting air plate and the inclined plate portions to drive the adjusting air plate to move toward the direction of the long air outlet, the two adjusting air plates collide with each other at the lower ends under the action of the elastic component to achieve the closure of the long air outlet, a moving component is provided in the main shell that moves after being acted upon by wind from the air inlet pipe, a linkage component is provided between the moving component and the two adjusting air plates for overcoming the action of the elastic component during the movement of the moving component under the action of wind; when the moving component is not acted upon by wind, the linkage component drives the moving component to reset during the resetting process of the elastic component.

[0008] The present invention is further configured as follows: sliding portions are provided on both sides of the inclined plate portion for sliding the adjusting air plate, and the elastic component includes a plurality of first connecting plates provided on the side of the adjusting air plate away from the long air outlet, a plurality of second connecting plates provided on the inclined plate portion, a plurality of guide shafts provided on the first connecting plate and passing through the first connecting plate, and a plurality of compression springs provided on the guide shaft and with both ends pressed against the first connecting plate and the second connecting plate.

[0009] The present invention is further configured as follows: a first air duct communicating with the long air outlet and a second air duct communicating with the air inlet pipe are provided in the main shell, an air inlet is provided in the middle of the first air duct, the movable component includes a telescopic square tube with one end telescopically arranged in the second air duct, and an arc-shaped air guide plate provided in the telescopic square tube; an air outlet that can coincide with the air inlet during the movement is provided on the side of the telescopic square tube close to the first air duct, and the end of the arc-shaped air guide plate away from the second air duct is connected to the end of the air outlet away from the second air duct, when the air outlet and the air inlet are connected, cold air flows along the second air duct, the telescopic square tube and the first air duct; when the telescopic square tube is in an initial state, the air outlet and the air inlet are not connected.

[0010] The present invention is further configured as follows: the linkage assembly includes a ceramic guide nozzle arranged on the rear side of the main shell, a first connecting ring arranged at the end of the guide shaft in the middle of the adjusting air plate, a second connecting ring arranged on the side of the telescopic square tube, and two steel cables passing through the ceramic guide nozzle, and the two ends of the steel cables are connected between the first connecting ring and the second connecting ring; when the telescopic square tube moves in a direction away from the second air duct under the action of wind force, the elastic force of the elastic assembly is overcome by pulling the steel cables.

[0011] The present invention is further configured such that: one end of the two air regulating plates that are close to each other is wrapped with a rubber buffer sleeve extending along the length direction thereof.

[0012] In summary, the beneficial effects of the present invention are:

[0013] 1. When the temperature sensor detects the temperature of the rubber roller in real time and transmits the data to the controller, when the temperature of the rubber roller rises to the maximum set value, the controller controls the solenoid valve to automatically open, and compressed air enters the cold air knife along the air inlet pipe, the cooling pipe of the cooler, and the connecting air pipe, and evenly sprays the cold air around the rubber roller to achieve cooling. When the temperature of the rubber roller drops to the minimum set value, the controller controls the solenoid valve to automatically close, so as to control the working temperature of the rubber roller within the appropriate range to ensure the quality of rice husking.

[0014] 2. Since the two rubber rollers of the rubber roller rice huller are divided into a movable rubber roller and a fixed rubber roller, the movable rubber roller is adjusted in position around the hinge point of the swing arm through the swing arm cylinder structure. At this time, the two cold air knives are installed respectively by setting a first bracket and a second bracket, so that the position or angle of the two cold air knives can be adjusted; the specific operation process is as follows: (1) at the first bracket, by adjusting the position of the first sliding bracket on the arc plate, the center line of the arc plate and the hinge axis of the swing arm are coincident, so that after the position of the movable rubber roller is adjusted, the air outlet of the cold air knife on the first sliding bracket can still be aligned with the rotation axis of the movable rubber roller; (2) at the second bracket, by adjusting the position of the second sliding bracket on the mounting plate, the distance between the cold air knife and the fixed rubber roller can be adjusted;

[0015] 3. Because the two cold air knives are respectively close to the fixed rubber roller and the movable rubber roller, when the rice is husked by the fixed rubber roller and the movable rubber roller, some scattered rice husks and brown rice particles are easy to enter the long air outlet holes of the cold air knife; at this time, by arranging the regulating air plate, the elastic component, the movable component and the linkage component, when the cold air knife is not supplied with compressed air, the two regulating air plates collide with each other at their lower ends under the action of the elastic component to close the long air outlet holes, thereby preventing rice husks and brown rice particles from entering the long air outlet holes; and when the cold air knife is supplied with compressed air, the movable component moves, and the linkage component overcomes the elastic force of the elastic component, so that the two regulating air plates open the long air outlet holes;

[0016] At the same time, as the wind pressure to which the moving assembly is subjected varies, the distance that the moving assembly can move varies. The smaller the wind pressure, the smaller the distance that the moving assembly moves, and the smaller the openings of the long air outlets opened by the two regulating air plates. This has the following effect: if the required wind pressure output by the cold air knife is set to X (used to ensure that the cold air can blow to the surrounding side of the rubber roller), when the pressure of the compressed air is too low, the opening of the long air outlet opened by the regulating air plates will be smaller, thereby increasing the output wind pressure to approach the required wind pressure X; when the pressure of the compressed air is too high, the opening of the long air outlet opened by the regulating air plates will be larger, thereby reducing the output wind pressure to approach the required wind pressure X, and can also increase the range of the cold air output, thereby improving the cooling effect.

[0017] 4. In the elastic component, multiple compression springs are sleeved on the guide shaft and their ends are pressed tightly between the first connecting piece and the second connecting piece, so that the air regulating plate can move toward the direction close to the long air outlet. Under the action of the elastic component, the ends of the two air regulating plates collide with each other to close the long air outlet.

[0018] In the moving component, when the telescopic square tube is in the initial state, the air outlet and the air inlet are not connected. When the compressed air drives the telescopic square tube to move, the air outlet and the air inlet are gradually connected. Finally, the cold air flows along the second air duct, the telescopic square tube, the first air duct, and is blown out from the long air outlet.

[0019] In the linkage assembly, when the telescopic square tube moves in a direction away from the second air duct under the action of wind, the elastic force of the elastic assembly is overcome by pulling the steel cable, so that the two adjusting air plates gradually open the long air outlet holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of Example 1;

[0021] Figure 2 This is a schematic diagram of the partial structure of the first bracket of Example 1;

[0022] Figure 3is a schematic diagram of the local structure at the second bracket in Example 1;

[0023] Figure 4 Schematic diagram of the structure of the cold air knife in Example 2;

[0024] Figure 5 yes Figure 4 A local enlarged view at point A;

[0025] Figure 6 This is a schematic diagram of the partial structure of the cold air knife after sectioning in Example 2;

[0026] Figure 7 yes Figure 6 A partial enlarged view of point B in the figure.

[0027] Reference numerals: 1. controller; 2. temperature sensor; 3. cold air knife; 31. main housing; 311. long air outlet; 312. inclined plate; 313. sliding portion; 314. first air duct; 315. second air duct; 316. air inlet; 32. air inlet pipe; 33. air regulating plate; 331. rubber buffer sleeve; 34. elastic component; 341. first connecting piece; 342. second connecting piece; 343. guide shaft; 344. compression spring; 35. moving component; 351. extension Shrink square tube; 3511, air outlet; 352, curved air guide plate; 36, linkage assembly; 361, ceramic guide nozzle; 362, first connecting ring; 363, second connecting ring; 363, steel cable; 4, air intake pipe; 5, solenoid valve; 6, cooler; 7, cold air pipe; 8, connecting air pipe; 9, first bracket; 91, curved plate; 92, first sliding frame; 93, first locking bolt; 10, second bracket; 101, mounting plate; 102, second sliding frame; 103, second locking bolt. DETAILED DESCRIPTION

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] Example 1: A temperature control system for the rubber roller of an intelligent rubber roller rice husker, such as Figure 1 As shown, it includes a controller 1, a temperature sensor 2 for detecting the temperature of the rubber roller and connected to the controller 1 by signal, two cold air knives 3 for cooling the circumference of the two rubber rollers respectively, an air intake pipe 4 for introducing air from the compressor, a solenoid valve 5 provided on the air intake pipe 4 and connected to the controller 1 by signal, a cooler 6 connected to the air intake pipe 4 and cooling the compressed air from the air intake pipe 4, a cold air pipe 7 connected to the cold air outlet of the cooler 6, and two connecting air pipes 8 connected between the cold air pipe 7 and the cold air knife 3.

[0030] like Figure 1As shown, the control process of the rubber roller temperature control system is as follows: when the temperature sensor 2 detects the temperature of the rubber roller in real time and transmits the data to the controller 1, when the temperature of the rubber roller rises to the maximum set value, the controller 1 controls the solenoid valve 5 to automatically open, and the compressed air enters the cold air knife 3 along the air inlet pipe 4, the cooling of the cooler 6, the cold air pipe 7, and the connecting air pipe 8, and the cold air is evenly sprayed on the circumference of the rubber roller to achieve cooling. When the temperature of the rubber roller drops to the minimum set value, the controller 1 controls the solenoid valve 5 to automatically close.

[0031] like Figure 1 As shown, the two rubber rollers of the rubber roller rice husker are divided into a movable rubber roller and a fixed rubber roller (the upper left one in the figure is the movable rubber roller, and the lower right one is the top rubber roller). The movable rubber roller adjusts its position around the hinge point of the swing arm through a swing arm cylinder structure. The cold air knife 3 near the movable rubber roller is provided with a first bracket 9 for mounting on the frame of the rice husker, and the cold air knife 3 near the fixed rubber roller is provided with a second bracket 10 for mounting on the frame of the rice husker.

[0032] like Figure 1 and Figure 2 As shown, the first bracket 9 includes a curved plate 91 for mounting on the frame of the rice huller, the center line of which coincides with the hinge axis of the swing arm, a first sliding frame 92 for mounting the cold air knife 3 and slidingly arranged on the curved plate 91, and a first locking bolt 93 arranged between the curved plate 91 and the first sliding frame 92. The curved plate 91 is located obliquely below the side of the movable rubber roller away from the fixed rubber roller. The air outlet 3511 of the cold air knife 3 mounted on the first sliding frame 92 is aligned with the rotation axis of the movable rubber roller.

[0033] like Figure 1 and Figure 3 As shown, the second bracket 10 includes a mounting plate 101 for being installed on the frame of the rice huller, a second sliding frame 102 for mounting the cold air knife 3 and slidingly arranged on the mounting plate 101, and a second locking bolt 103 arranged between the mounting plate 101 and the second sliding frame 102. The mounting plate 101 is located obliquely above the side of the fixed rubber roller away from the moving rubber roller, and the air outlet 3511 of the cold air knife 3 installed on the second sliding frame 102 is aligned with the rotation axis of the fixed rubber roller.

[0034] Implementation effect: The controller 1 controls the solenoid valve 5 to open automatically, and the compressed air enters the cold air knife 3 along the air inlet pipe 4, the cooling of the cooler 6, the cold air pipe 7, and the connecting air pipe 8, and the cold air is evenly sprayed on the circumference of the rubber roller to achieve cooling. When the temperature of the rubber roller drops to the minimum set value, the controller 1 controls the solenoid valve 5 to close automatically, thereby controlling the working temperature of the rubber roller within a suitable range to ensure the quality of rice husking.

[0035] Since the two rubber rollers of the rubber roller rice husker are divided into a movable rubber roller and a fixed rubber roller, the movable rubber roller is adjusted in position around the hinge point of the swing arm by the swing arm cylinder structure. At this time, the two cold air knives 3 are installed respectively by setting the first bracket 9 and the second bracket 10, so that the position or angle of the two cold air knives 3 can be adjusted; the specific operation process is as follows: (1) at the first bracket 9, by adjusting the position of the first sliding frame 92 on the arc plate 91, the center line of the arc plate 91 and the hinge axis of the swing arm are coincident, so that after the position of the movable rubber roller is adjusted, the air outlet 3511 of the cold air knife 3 on the first sliding frame 92 can still be aligned with the rotation axis of the movable rubber roller; (2) at the second bracket 10, by adjusting the position of the second sliding frame 102 on the mounting plate 101, the distance between the cold air knife 3 and the fixed rubber roller can be adjusted.

[0036] Example 2: A temperature control system for the rubber roller of an intelligent rubber roller rice husker, such as Figures 4 to 6 As shown, the difference from embodiment 1 is that the cold air knife 3 includes a main shell 31 with a long air outlet 311, an air inlet pipe 32 arranged at one end of the main shell 31, and two air adjustment plates 33.

[0037] like Figure 4 and Figure 5 As shown, the main shell 31 is symmetrically provided with inclined plate portions 312 on the upper and lower surfaces of the long air outlet hole 311, and two adjusting air plates 33 are respectively slidably provided on the two inclined plate portions 312, and an elastic component 34 is provided between the adjusting air plate 33 and the inclined plate portion 312 to drive the adjusting air plate 33 to move in the direction of the long air outlet hole 311. The lower ends of the two adjusting air plates 33 collide with each other under the action of the elastic component 34 to close the long air outlet hole 311, and a moving component 35 that moves after being acted upon by the wind force from the air inlet pipe 32 is provided in the main shell 31, and a linkage component 36 is provided between the moving component 35 and the two adjusting air plates 33 to overcome the action of the elastic component 34 during the movement of the moving component 35 under the action of the wind force; when the moving component 35 is not acted upon by the wind, the elastic component 34 drives the moving component 35 to reset through the linkage component 36 during the reset process.

[0038] like Figure 4 and Figure 5 As shown, sliding portions 313 are provided on both sides of the inclined plate portion 312 for the adjustable air plates 33 to slide on. The elastic assembly 34 includes a plurality of first connecting pieces 341 disposed on the side of the adjustable air plates 33 away from the elongated air outlet 311, a plurality of second connecting pieces 342 disposed on the inclined plate portion 312, a plurality of guide shafts 343 disposed on and passing through the first connecting pieces 341, and a plurality of compression springs 344 sleeved on the guide shafts 343, with both ends abutting between the first connecting pieces 341 and the second connecting pieces 342. A rubber buffer sleeve 331 extending along the length of the adjacent ends of the two adjustable air plates 33 is wrapped around them.

[0039] like Figure 4 、 Figure 6 and Figure 7 As shown, a first air duct 314 communicating with the long air outlet hole 311 and a second air duct 315 communicating with the air inlet pipe 32 are provided in the main shell 31. An air inlet 316 is provided in the middle of the first air duct 314. The movable component 35 includes a telescopic square tube 351 with one end telescopically arranged in the second air duct 315 and an arc-shaped air guide plate 352 arranged in the telescopic square tube 351. An air outlet 3511 is provided on one side of the telescopic square tube 351 close to the first air duct 314, which can overlap with the air inlet 316 during movement. The end of the arc-shaped air guide plate 352 away from the second air duct 315 is connected to the end of the air outlet 3511 away from the second air duct 315. When the air outlet 3511 and the air inlet 316 are connected, cold air flows along the second air duct 315, the telescopic square tube 351, and the first air duct 314; when the telescopic square tube 351 is in the initial state, the air outlet 3511 and the air inlet 316 are not connected.

[0040] like Figure 4 、 Figure 5 and Figure 7 As shown, the linkage assembly 36 includes a ceramic guide nozzle 361 arranged on the rear side of the main shell 31, a first connecting ring 362 arranged at the end of the guide shaft 343 located in the middle of the adjusting air plate 33, a second connecting ring 363 arranged on the side of the telescopic square tube 351, and two steel cables 364 passing through the ceramic guide nozzle 361, and the two ends of the steel cables 364 are connected between the first connecting ring 362 and the second connecting ring 363; when the telescopic square tube 351 is moved in the direction away from the second air duct 315 under the action of wind force, the elastic force of the elastic assembly 34 is overcome by pulling the steel cables 364.

[0041] Implementation effect: Because the two cold air knives 3 are respectively close to the fixed rubber roller and the movable rubber roller, when the rice is husked by the fixed rubber roller and the movable rubber roller, some scattered rice husks and brown rice particles can easily enter through the long air outlet holes 311 of the cold air knife 3; at this time, by providing the regulating air plate 33, the elastic component 34, the movable component 35 and the linkage component 36, when compressed air is not passed into the cold air knife 3, the two regulating air plates 33 are abutted by the lower ends of the elastic component 34 to close the long air outlet holes 311, thereby preventing rice husks and brown rice particles from entering the long air outlet holes 311; and when compressed air is passed into the cold air knife 3, the movable component 35 moves, and the linkage component 36 overcomes the elastic force of the elastic component 34, so that the two regulating air plates 33 open the long air outlet holes 311; At the same time, as the wind pressure to which the movable assembly 35 is subjected varies, the distance that the movable assembly 35 can move varies. The smaller the wind pressure, the smaller the distance that the movable assembly 35 moves, and the smaller the opening of the long air outlet 311 opened by the two regulating air plates 33. This has the following effect: if the required wind pressure output by the cold air knife 3 is set to X (for ensuring that the cold air can blow to the circumference of the rubber roller), when the pressure of the compressed air is too low, the regulating air plates 33 open the smaller opening of the long air outlet 3511, thereby increasing the output wind pressure to approach the required wind pressure X; when the pressure of the compressed air is too high, the regulating air plates 33 open the larger opening of the long air outlet 3511, thereby reducing the output wind pressure to approach the required wind pressure X, and can increase the range of the cold air output, thereby improving the cooling effect.

[0042] In the elastic component 34, a plurality of compression springs 344 are sleeved on the guide shaft 343 and the two ends are pressed tightly between the first connecting piece 341 and the second connecting piece 342, so that the regulating air plate 33 can move toward the direction close to the long air outlet 311, so that the ends of the two regulating air plates 33 are in contact with each other under the action of the elastic component 34 to close the long air outlet 311; in the moving component 35, when the telescopic square tube 351 is in the initial state, the air outlet 3511 and the air inlet 316 are not connected, and when the compressed air When the telescopic square tube 351 is driven to move, the air outlet 3511 and the air inlet 316 are gradually connected, and finally the cold air flows along the second air duct 315, the telescopic square tube 351, and the first air duct 314, and is blown out from the long air outlet 311; in the linkage component 36, when the telescopic square tube 351 is moved in the direction away from the second air duct 315 under the action of wind force, the elastic force of the elastic component 34 is overcome by pulling the steel cable 364, so that the two adjusting air plates 33 gradually open the long air outlet 311.

[0043] This specific embodiment is merely an explanation of the present invention and is not intended to limit the present invention. After reading this specification, those skilled in the art may make non-creative modifications to this embodiment as needed. However, as long as such modifications are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A rubber roller temperature control system for an intelligent rubber roller rice huller, characterized by: The invention comprises a controller (1), a temperature sensor (2) for detecting the temperature of the rubber roller and connected to the controller (1) by signal, two cold air knives (3) for respectively cooling the circumferences of the two rubber rollers, an air intake pipe (4) for introducing air from a compressor, an electromagnetic valve (5) provided on the air intake pipe (4) and connected to the controller (1) by signal, a cooler (6) connected to the air intake pipe (4) and cooling the compressed air from the air intake pipe (4), a cold air pipe (7) connected to the cold air outlet of the cooler (6), and two connecting air pipes (8) connected between the cold air pipe (7) and the cold air knives (3); The control process of the rubber roller temperature control system is as follows: when the temperature sensor (2) detects the temperature of the rubber roller in real time and transmits the data to the controller (1), when the temperature of the rubber roller rises to the maximum set value, the controller (1) controls the electromagnetic valve (5) to open automatically, and the compressed air enters the cold air knife (3) along the air inlet pipe (4), the cooling of the cooler (6), the cold air pipe (7), and the connecting air pipe (8), and evenly sprays the cold air on the circumference of the rubber roller to achieve cooling. When the temperature of the rubber roller drops to the minimum set value, the controller (1) controls the electromagnetic valve (5) to close automatically; The cold air knife (3) comprises a main shell (31) with a long air outlet (311), an air inlet pipe (32) arranged at one end of the main shell (31), and two regulating air plates (33); the main shell (31) is symmetrically provided with inclined plate portions (312) on the upper and lower surfaces of the long air outlet (311), and the two regulating air plates (33) are respectively slidably provided on the two inclined plate portions (312), and an elastic component (34) is provided between the regulating air plate (33) and the inclined plate portion (312) to drive the regulating air plate (33) to move toward the direction where the long air outlet (311) is located. The two regulating air plates (33) under the action of the elastic component (34), the lower end thereof abuts against each other to close the long air outlet hole (311); a moving component (35) is provided in the main shell (31) and moves after being acted upon by the wind from the air inlet pipe (32); a linkage component (36) is provided between the moving component (35) and the two regulating air plates (33) to overcome the action of the elastic component (34) during the movement of the moving component (35) under the action of the wind; when the moving component (35) is not acted upon by the wind, the elastic component (34) drives the moving component (35) to reset through the linkage component (36) during the reset process.

2. The temperature control system for the rubber roller of the intelligent rubber roller rice husker according to claim 1 is characterized in that: The two rubber rollers of the rubber roller rice husker are divided into a movable rubber roller and a fixed rubber roller. The movable rubber roller is adjusted in position around a hinge point of a swing arm by a swing arm cylinder structure. A first bracket (9) for mounting on a frame of the rice husker is provided on a cold air knife (3) close to the movable rubber roller. A second bracket (10) for mounting on a frame of the rice husker is provided on a cold air knife (3) close to the fixed rubber roller. The first bracket (9) comprises an arc-shaped plate (91) for being mounted on the frame of the rice huller and having its center line coincident with the hinge axis of the swing arm, a first sliding frame (92) for mounting the cold air knife (3) and slidingly arranged on the arc-shaped plate (91), and a first locking bolt (93) arranged between the arc-shaped plate (91) and the first sliding frame (92), wherein the arc-shaped plate (91) is located obliquely below the side of the movable rubber roller away from the fixed rubber roller, and the air outlet (3511) of the cold air knife (3) mounted on the first sliding frame (92) is aligned with the rotation axis of the movable rubber roller; The second bracket (10) comprises a mounting plate (101) for mounting on a frame of a rice huller, a second sliding frame (102) for mounting a cold air knife (3) and slidingly arranged on the mounting plate (101), and a second locking bolt (103) arranged between the mounting plate (101) and the second sliding frame (102), wherein the mounting plate (101) is located obliquely above the side of the fixed rubber roller away from the movable rubber roller, and the air outlet (3511) of the cold air knife (3) mounted on the second sliding frame (102) is aligned with the rotation axis of the fixed rubber roller.

3. The temperature control system for the rubber roller of the intelligent rubber roller rice husker according to claim 1 is characterized in that: Sliding portions (313) for sliding the regulating air plate (33) are provided on both sides of the inclined plate portion (312), and the elastic component (34) includes a plurality of first connecting pieces (341) provided on the side of the regulating air plate (33) away from the long air outlet hole (311), a plurality of second connecting pieces (342) provided on the inclined plate portion (312), a plurality of guide shafts (343) provided on the first connecting piece (341) and passing through the first connecting piece (341), and a plurality of compression springs (344) sleeved on the guide shafts (343) and with both ends pressed against the first connecting piece (341) and the second connecting piece (342).

4. The temperature control system for the rubber roller of the intelligent rubber roller rice huller according to claim 3 is characterized in that: The main housing (31) is provided with a first air duct (314) communicating with the long air outlet hole (311) and a second air duct (315) communicating with the air inlet pipe (32); an air inlet (316) is provided in the middle of the first air duct (314); the moving assembly (35) comprises a telescopic square tube (351) with one end telescopically arranged in the second air duct (315), and an arc-shaped air guide plate (352) arranged in the telescopic square tube (351); An air outlet (3511) is provided on one side of the telescopic square tube (351) close to the first air duct (314), which can overlap with the air inlet (316) during movement; an end of the arc-shaped air guide plate (352) away from the second air duct (315) is connected to an end of the air outlet (3511) away from the second air duct (315); when the air outlet (3511) and the air inlet (316) are connected, cold air flows along the second air duct (315), the telescopic square tube (351), and the first air duct (314); when the telescopic square tube (351) is in an initial state, the air outlet (3511) and the air inlet (316) are not connected.

5. The temperature control system for the rubber roller of the intelligent rubber roller rice huller according to claim 4 is characterized in that: The linkage assembly (36) comprises a ceramic guide nozzle (361) arranged at the rear side of the main shell (31), a first connecting ring (362) arranged at the end of the guide shaft (343) located in the middle of the regulating air plate (33), a second connecting ring (363) arranged on the side of the telescopic square tube (351), and two steel cables (364) passing through the ceramic guide nozzle (361), wherein the two ends of the steel cables (364) are connected between the first connecting ring (362) and the second connecting ring (363); when the telescopic square tube (351) moves in a direction away from the second air duct (315) under the action of wind force, the elastic force of the elastic assembly (34) is overcome by the pulling of the steel cables (364).

6. The temperature control system for the rubber roller of the intelligent rubber roller rice huller according to claim 5, characterized in that: One end of the two air regulating plates (33) that is close to each other is wrapped with a rubber buffer sleeve (331) extending along the length direction thereof.

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