Drying device with monitoring function

Abstract

The invention relates to the technical field of drying devices, in particular to a drying device with a monitoring function, which comprises a drying box, a box door, a drying quality monitoring mechanism, a gas dispersing cover, a purifying mechanism, a first gas pipe, a hot-air blower, a second gas pipe and a third gas pipe, the drying quality monitoring mechanism is fixedly connected to the left end of the top of the drying box; the air dispersing cover is fixedly connected to the lower surface of the drying box; the purification mechanism is fixedly connected to the top of the right side wall of the drying box; and one end of the first air pipe is mounted at the right end of the upper surface of the drying box while the other end is connected with the top of the purification mechanism. According to the soybean drying device, soybeans can be dried, impurities generated in the drying process can be directly removed, therefore, subsequent filtering operation is avoided, the processing efficiency is improved, the soybean drying monitoring function is achieved, the soybeans can be stored in the best drying state, and the consistency and high quality of final products are guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of drying devices, and in particular to a drying device with a monitoring function. Background Art

[0002] In the soybean processing industry, soybean drying is a crucial link. Small processing plants and farmers face the problem of traditional soybean drying. Traditional soybean drying equipment has exposed many problems that need to be solved in actual application.

[0003] On the one hand, most existing small-scale drying devices lack an effective impurity treatment mechanism. During the soybean drying process, the hot air flow will cause impurities in the soybeans to fly. If these impurities are directly discharged into the air, they will not only cause environmental pollution, but may also harm the health of operators. Moreover, it is often necessary to equip additional complex filtering equipment to purify the exhaust gas, which undoubtedly increases the equipment cost and processing procedures, and reduces the overall processing efficiency.

[0004] On the other hand, since there are requirements for the degree of soybean drying in processing different soy products, the monitoring methods for soybean drying quality are relatively backward. Usually, it is difficult to achieve accurate and real-time drying quality monitoring by relying only on the operator's experience or simple sampling tests to determine whether the soybeans are dried. This method can easily lead to over-drying or under-drying of soybeans, affecting the storage life of soybeans and the quality of the final product, and failing to ensure the consistency and high quality of the product.

[0005] In summary, the development of a new drying device that can effectively remove impurities generated during the drying process and has accurate monitoring functions to ensure the quality of soybean drying has become an important issue that needs to be solved in small factories and farmers' households. Summary of the invention

[0006] In order to overcome the shortcomings of the prior art that impurities in soybeans cannot be removed and it is difficult to achieve the optimal drying state, the present invention proposes a drying device with a monitoring function. By introducing a hot air blower and a purification mechanism, efficient and uniform drying of soybeans is achieved. At the same time, through a drying quality monitoring mechanism and a filtering component, precise control of drying quality and effective treatment of impurities in exhaust gas are achieved, thereby improving soybean processing efficiency, product quality and resource utilization, and reducing environmental pollution.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a drying device with a monitoring function, comprising a drying box and a box door, wherein the box door is connected to the left end of the front face of the drying box by a hinge, and also comprises a drying quality monitoring mechanism, an air dispersion hood, a purification mechanism, a first air pipe, a hot air blower, a second air pipe, a third air pipe and a solar panel, wherein the drying quality monitoring mechanism is fixedly connected to the left end of the top of the drying box; the air dispersion hood is fixedly connected to the lower surface of the drying box; the purification mechanism is fixedly connected to the top of the right side wall of the drying box; one end of the first air pipe is installed at the right end of the upper surface of the drying box, and the other end is connected to the top of the purification mechanism; the hot air blower is fixedly connected to the bottom of the right side wall of the drying box, and the hot air blower absorbs the gas in the purification mechanism and heats the gas; the two ends of the second air pipe are respectively installed at the bottom of the right side wall of the purification mechanism and the air inlet of the hot air blower; the two ends of the third air pipe are respectively installed at the air outlet of the hot air blower and the bottom of the air dispersion hood; the solar panel is installed on the back of the drying box through a bracket.

[0008] Preferably, the purpose is to measure the weight of soybeans, monitor the dry weight of soybeans, and dry the soybeans to the best state. The drying quality monitoring mechanism includes a monitoring box, an alarm light, a first rotating shaft, a first gear, a weight detection assembly, a limit cylinder, a limit rod, a bracket and a rack. The monitoring box is fixedly connected to the left end of the upper surface of the drying box; the alarm light is installed on the front of the monitoring box; the first rotating shaft is installed at the center of the inner cavity of the monitoring box so as to be rotatable around its own axis through a bearing; the first gear is installed on the outer wall of the first rotating shaft; the weight detection assembly is fixedly connected to the left end of the upper surface of the monitoring box; the limit cylinder is vertically fixedly connected to the right end of the lower surface of the monitoring box; the limit rod can be slid up and down and inserted into the inner cavity of the limit cylinder, and the outer wall of the limit rod is rectangular in shape; the bracket is installed at the bottom end of the limit rod, and the tray with soybeans is placed by the bracket; there are two racks, which are respectively installed at the bottom end of the weight detection assembly and the top end of the limit rod, and the rack is meshed with the first gear.

[0009] Preferably, the two racks are distributed on both sides of the first gear in a left-right opposite relationship.

[0010] Preferably, the purpose is to adjust the dehydration amount of soybeans, and the weight detection component includes a piston cylinder, a piston, hydraulic oil, a case, a slide, a positioning blind hole, a dial, a second rotating shaft, a pointer, a second gear, a Bourdon tube, a fan gear, a connecting rod, a slider, a proximity switch, a spring and a ball. The piston cylinder is vertically fixedly connected to the left end of the upper surface of the monitoring box; the piston is inserted into the inner cavity of the piston cylinder so as to be able to slide up and down, and the bottom of the piston is connected to the rack; the hydraulic oil is filled in the inner cavity of the piston cylinder, and the hydraulic oil is squeezed by the upward movement of the piston; the case is fixedly connected to the top of the outer wall of the piston cylinder, a slide is provided on the top of the side wall of the case, and a plurality of positioning blind holes are provided at equal intervals along the circumferential direction on the outer edge of the front of the case; the dial is installed at the front end of the inner cavity of the case, and a weight unit is provided on the dial; the second rotating shaft A bearing is installed at the center of the inner cavity of the watch case so as to be rotatable around its own axis; the pointer and the second gear are respectively installed at the front and rear ends of the second rotating shaft; one end of the Bourdon tube is installed at the top of the left wall of the piston cylinder; the sector gear is connected to the rear side of the inner cavity of the watch case through a pin shaft, and the sector gear is meshed with the second gear; one end of the connecting rod is connected to the other end of the Bourdon tube through a pin shaft, and the other end of the connecting rod is connected to the right end of the sector gear through a pin shaft, and the Bourdon tube and the sector gear are linked by the connecting rod; the slider is slidably connected to the inner cavity of the slideway; the proximity switch is installed at the center of the slider, and the proximity switch is electrically connected to the alarm light; the spring and the ball are inserted into the front end of the inner cavity of the slider from the inside to the outside, and the ball is inserted into the inner cavity of the positioning blind hole under the action of the spring elastic force to position the slider.

[0011] Preferably, when no tray is placed on the bracket, the pointer points to the zero point of the dial.

[0012] Preferably, the positioning blind holes correspond one-to-one to the scales on the dial.

[0013] Preferably, the purification mechanism includes a purification box, a first air collecting hood, a second air collecting hood, a collecting barrel and a filter assembly; the purification box is fixedly connected to the top of the right side wall of the drying box, and the bottom end of the right side wall of the purification box is connected to the end of the second air pipe; the first air collecting hood and the second air collecting hood are respectively installed at the upper and lower ends of the purification box, and the top of the first air collecting hood is connected to the end of the first air pipe; the collecting barrel is screwed to the bottom end of the second air collecting hood, and impurities are collected through the collecting barrel; the filter assembly is horizontally installed on the top of the right side wall of the purification box.

[0014] Preferably, the purpose is to filter out impurities and improve the quality of soybeans. The filtering component includes a motor, a mesh cylinder, paddles and gravel. The motor is installed on the top of the right side wall of the purification box; one end of the mesh cylinder is installed on the output end of the motor, and the other end is connected to the left inner wall of the purification box through a bearing. The outer wall of the mesh cylinder is infinitely close to the front and rear inner walls of the purification box; there are several paddles, which are installed on the inner wall of the mesh cylinder at equal distances from left to right along the circumferential direction; and gravel is filled in the inner cavity of the mesh cylinder.

[0015] Preferably, the gravel particle size is larger than the mesh tube aperture.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention forms a negative pressure in the purification box through the suction of the hot air blower. The gas in the drying box enters the purification box through the first air pipe. The gaps between the gravel filter the flying impurities. The hot air blower heats the gas and discharges it into the drying box through the third air pipe to realize hot air flow circulation and dry the soybeans. The motor drives the mesh cylinder to rotate. After the paddles raise the height of the gravel, the space increases when the gravel falls, allowing impurities mixed in the gravel to fall down. The collecting bucket collects the impurities to achieve impurity removal and prevent the impurities from diffusing into the air to pollute the environment. Not only can the soybeans be dried, but also the impurities generated in the drying process can be directly removed, thereby avoiding subsequent filtering operations and improving processing efficiency.

[0017] 2. The present invention increases the gravity of the bracket. Under the transmission of the rack and the first gear, the pressure of the piston squeezing the hydraulic oil also gradually increases, the Bourdon tube deformation becomes larger and larger, and the second gear drives the pointer to rotate clockwise under the cooperation of the connecting rod and the fan gear. The weight of the soybeans after drying is calculated according to the weight of the soybeans, and the slider is moved to make the proximity switch point to the weight scale of the soybeans after drying on the dial. Under the push of the spring, the ball is inserted into the corresponding position positioning blind hole to position the slider. As the moisture content of the soybeans decreases, the weight gradually decreases, the Bourdon tube deformation becomes smaller, and the pointer rotates counterclockwise. When the pointer blocks the proximity switch, the alarm light lights up to alarm. The present invention has the function of monitoring the drying of soybeans, so that the soybeans can be stored in the best drying state, ensuring the consistency and high quality of the final product. The soybeans can be dried to different degrees according to the processing needs of different soybean products.

[0018] 3. The present invention can also be applied to the drying of chemical products. When a small chemical plant dries materials, the purification mechanism can filter impurities and avoid pollution, and the hot air flow circulation can achieve efficient drying, eliminating the subsequent exhaust gas purification process and improving production efficiency. According to the strict requirements of chemical products on the dryness of materials, the drying quality monitoring mechanism can accurately control the drying process, set standards according to product requirements, and alarm when the standards are met, thereby reducing the defective rate and increasing economic benefits. The device has a compact structure, easy installation and maintenance, low energy consumption, and strong versatility. It can adapt to the drying of various chemical materials and improve equipment utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the drying quality monitoring mechanism of the present invention; Figure 3 This is a front cross-sectional view of the drying quality monitoring mechanism of the present invention; Figure 4 For the present invention Figure 2 A in the enlarged view; Figure 5 It is a left side cross-sectional view of the slider of the present invention; Figure 6 It is a schematic diagram of the purification mechanism structure of the present invention; Figure 7 It is a front cross-sectional view of the purification mechanism of the present invention; Figure 8 It is a left side cross-sectional view of the filter assembly of the present invention.

[0020] In the figure: 1, drying box; 2, box door; 3, drying quality monitoring mechanism; 4, air hood; 5, purification mechanism; 6, first air pipe; 7, hot air blower; 8, second air pipe; 9, third air pipe; 10, solar panel; 31, monitoring box; 32, alarm light; 33, first rotating shaft; 34, first gear; 35, weight detection component; 36, limit cylinder; 37, limit rod; 38, bracket; 39, rack; 351, piston cylinder; 352, piston; 353, hydraulic oil; 354, case; 355, Slide; 356, positioning blind hole; 357, dial; 358, second rotating shaft; 359, pointer; 3510, second gear; 3511, Bourdon tube; 3512, fan gear; 3513, connecting rod; 3514, slider; 3515, proximity switch; 3516, spring; 3517, ball; 51, purification box; 52, first air collecting hood; 53, second air collecting hood; 54, collecting barrel; 55, filter assembly; 551, motor; 552, mesh cylinder; 553, paddle; 554, gravel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] The present invention provides a technical solution: a drying device with a monitoring function, such as Figure 1-Figure 8As shown, it includes a drying box 1 and a box door 2, the box door 2 is connected to the left end of the front of the drying box 1 by a hinge, a drying quality monitoring mechanism 3 is fixedly connected to the left end of the upper surface of the drying box 1, a diffuser hood 4 is installed on the lower surface of the drying box 1, and hot air is discharged through the diffuser hood 4, a purification mechanism 5 is fixedly connected to the top of the right wall of the drying box 1, one end of a first air pipe 6 is installed on the right end of the upper surface of the drying box 1, and the other end of the first air pipe 6 is connected to the top of the purification mechanism 5, a hot air blower 7 is installed at the bottom end of the right wall of the drying box 1, and a hot air blower 7 is installed at the bottom end of the right wall of the purification mechanism 5 There is one end of a second air pipe 8, and the other end of the second air pipe 8 is connected to the top of a hot air blower 7. The hot air blower 7 can absorb the gas in the purification mechanism 5 and heat the gas. The air outlet of the hot air blower 7 is connected to the bottom of the gas diffusion hood 4 through a third air pipe 9. A solar panel 10 is installed on the back of the drying box 1 through a bracket. The bracket is an adjustable bracket, which can adjust the angle and direction of the solar panel 10 to facilitate the solar panel 10 to absorb sunlight. The solar panel 10 can provide electricity for the device, which is more convenient for small factories and farmers to use.

[0023] As a preferred solution, further, the drying quality monitoring mechanism 3 includes a monitoring box 31 fixedly connected to the left end of the upper surface of the drying box 1, an alarm light 32 is installed on the front of the monitoring box 31, and the alarm light 32 is powered on to light up to remind the staff that the soybean drying is completed, a first rotating shaft 33 that can rotate around its own axis is installed at the center of the inner cavity of the monitoring box 31 through a bearing, a first gear 34 is installed on the outer wall of the first rotating shaft 33, a weight detection component 35 is installed on the left end of the upper surface of the monitoring box 31, and a A limit cylinder 36 is provided, and a limit rod 37 which can slide up and down is inserted into the inner cavity of the limit cylinder 36. A bracket 38 is installed at the bottom end of the limit rod 37. The inner side of the bracket 38 is used to store a tray for placing soybeans. A rack 39 is installed at the top of the limit rod 37 and the bottom end of the weight detection component 35, and the rack 39 is meshed and connected with the first gear 34. The outer wall of the limit rod 37 is rectangular in shape to prevent the rack 39 from rotating. The two racks 39 are distributed on both sides of the first gear 34 opposite to each other. Under the transmission of the first gear 34, the two racks 39 can move in opposite directions.

[0024] As a preferred solution, further, the weight detection component 35 includes a piston cylinder 351 vertically installed on the left end of the upper surface of the monitoring box 31, a piston 352 that can slide up and down is inserted into the inner cavity of the piston cylinder 351, the bottom of the piston 352 is connected to the rack 39, and the inner cavity of the piston cylinder 351 is filled with hydraulic oil 353. Under the gravity of the bracket 38 and the limit rod 37, the right rack 39 descends, prompting the left rack 39 to drive the piston 352 to squeeze the hydraulic oil 353 upward, the pressure of the hydraulic oil 353 increases, and a case 354 is installed on the top of the outer wall of the piston cylinder 351. The top of the outer wall of the case 354 A slideway 355 is provided, and positioning blind holes 356 are provided at equal intervals along the circumferential direction on the outer edge of the front side of the watch case 354. A dial 357 is installed at the front end of the inner cavity of the watch case 354, and a weight unit is set on the dial 357. A second rotating shaft 358 capable of rotating around its own axis is installed at the center of the inner cavity of the watch case 354 through a bearing. A pointer 359 and a second gear 3510 are installed at the front and rear ends of the second rotating shaft 358 respectively. When the right rack 39 only bears the gravity of the bracket 38 and the limit rod 37, the pointer 359 points to the zero point on the scale of the dial 357 to achieve the purpose of zeroing. The top of the left wall of the piston cylinder 351 One end of a Bourdon tube 3511 is installed, and a sector gear 3512 meshing with the second gear 3510 is connected to the rear side of the inner cavity of the dial 357 through a pin shaft. The other end of the Bourdon tube 3511 is connected to one end of a connecting rod 3513 through a pin shaft, and the other end of the connecting rod 3513 is connected to the right end of the sector gear 3512 through a pin shaft. The Bourdon tube 3511 is gradually deformed by the increase in the pressure of the hydraulic oil 353, so that the connecting rod 3513 pulls the sector gear 3512 to rotate counterclockwise, so that the second gear 3510 drives the pointer 359 to rotate clockwise, and the dial 359 pointed to by the pointer 359 is turned clockwise. The scale on 57 is the current weight of soybeans on the bracket 38. The inner cavity of the slide 355 is slidably connected to the slider 3514. A proximity switch 3515 electrically connected to the alarm light 32 is installed at the center of the slider 3514. The front side of the inner cavity of the slider 3514 is respectively connected with a spring 3516 and a ball 3517 from the inside to the outside. Under the push of the elastic force of the spring 3516, the ball 3517 is inserted into the inner cavity of the positioning blind hole 356 to position the slider 3514. The positioning blind hole 356 corresponds to the scale on the dial 357 one by one, and the position of the proximity switch 3515 can be adjusted according to the scale of the dial 357.

[0025] As a preferred embodiment, further, the purification mechanism 5 includes a purification box 51 fixedly connected to the top of the right side wall of the drying box 1, the bottom of the right side wall of the purification box 51 is connected to the end of the second air pipe 8, the first air collecting hood 52 and the second air collecting hood 53 are respectively installed at the upper and lower ends of the purification box 51, the top of the first air collecting hood 52 is connected to the end of the first air pipe 6, and the bottom of the second air collecting hood 53 is screwed with a collecting barrel 54, and impurities are collected through the collecting barrel 54. A filter assembly 55 is horizontally installed on the top of the right side wall of the purification box 51.

[0026] As a preferred solution, further, the filter assembly 55 includes a motor 551 installed on the top of the right side wall of the purification box 51, one end of the net tube 552 is installed on the output end of the motor 551, the other end of the net tube 552 is installed on the left inner wall of the purification box 51 through a bearing, the outer wall of the net tube 552 is infinitely close to the front and rear inner walls of the purification box 51, and a number of paddles 553 are installed on the inner wall of the net tube 552 at equal intervals from left to right along the circumferential direction. The inner cavity of the net tube 552 is filled with gravel 554, and impurities are filtered through the gaps between the gravel 554. The particle size of the gravel 554 is larger than the aperture of the net tube 552 to prevent the gravel 554 from escaping from the net tube 552.

[0027] Working principle: Step 1: Place the tray with soybeans on the bracket 38, close the door 2, absorb the gas in the purification box 51 under the suction of the hot air blower 7, and heat the gas passing through the hot air blower 7. The gas is discharged from bottom to top into the drying box 1 through the air diffuser 4. The hot air flows in the drying box 1 to dry the soybeans and remove moisture from the soybeans. Step 2: The gas enters the purification box 51 through the first air pipe 6, and the impurities raised in the drying box 1 pass through the mesh of the net tube 552 and the gaps between the gravel 554 to filter the impurities. The impurities are blocked by the gravel 554, and the purified gas is then heated by the hot air blower 7 to achieve the purpose of removing impurities and prevent impurities from diffusing into the air to pollute the environment. Not only can the soybeans be dried, but also the impurities generated during the drying process can be directly removed, thereby avoiding subsequent filtering operations and improving the processing efficiency; When impurities on the gravel 554 need to be removed, the motor 551 drives the mesh cylinder 552 to rotate, and the paddle 553 moves the gravel 554 up a certain distance and then falls, so that the gravel 554 rolls in the mesh cylinder 552, expanding the gap between the gravel 554 in the mesh cylinder 552, and the impurities can fall from the gap of the mesh cylinder 552, and the important impurities are collected by the collecting bucket 54; Step 3: Before drying, the weight of soybeans causes the limit rod 37 to drive the rack 39 to descend. Under the transmission of the rack 39 and the first gear 34, the piston 352 moves upward to squeeze the hydraulic oil 353. The pressure of the Bourdon tube 3511 increases, causing the cross section to become rounded and elastically deformed, so that the bending degree of the Bourdon tube 3511 becomes smaller. The Bourdon tube 3511 pulls the fan gear 3512 to rotate counterclockwise through the connecting rod 3513, thereby causing the second gear 3510 to drive the pointer 359 to rotate clockwise. The scale of the dial 357 pointed by the pointer 359 is the weight of soybeans. The weight of soybeans after drying is calculated according to the water extraction rate of soybeans. The sliding block 3514 moves on the slide 355 until the switch 3515 is close to the scale of soybeans after drying on the dial 357. Under the elastic force of the spring 3516, the ball 3517 is pushed to be inserted into the corresponding position positioning blind hole 356 to position the moved slider 3514. As the moisture content of soybeans decreases, the weight of soybeans gradually decreases, the pressure of the rack 39 squeezing the piston 352 also gradually decreases, and then the pressure of the hydraulic oil 353 gradually decreases, and the Bourdon tube 3511 gradually returns to its original state. At the same time, the sector gear 3512 and the second gear 3510 transmit the pointer 359 to rotate counterclockwise. When the pointer 359 blocks the proximity switch 3515, the proximity switch 3515 energizes the alarm light 32 to illuminate, reminding the staff that the soybeans have been dried, thereby improving the quality of soybean drying.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A drying device with a monitoring function, comprising a drying box (1) and a box door (2), wherein the box door (2) is connected to the left end of the front of the drying box (1) via a hinge, and is characterized in that: The drying device with monitoring function also includes: A drying quality monitoring mechanism (3) fixedly connected to the top left end of the drying box (1); An air diffusion hood (4) fixedly connected to the lower surface of the drying box (1); A purification mechanism (5) fixedly connected to the top of the right side wall of the drying box (1); A first air pipe (6), one end of which is mounted on the right end of the upper surface of the drying box (1), and the other end of which is connected to the top of the purification mechanism (5); A hot air blower (7) is fixedly connected to the bottom of the right side wall of the drying box (1), and absorbs the gas in the purification mechanism (5) through the hot air blower (7) and heats the gas; A second air pipe (8), two ends of which are respectively mounted on the bottom of the right side wall of the purification mechanism (5) and the air inlet of the hot air blower (7); A third air pipe (9), two ends of which are respectively mounted on the air outlet of the hot air blower (7) and the bottom of the air diffuser (4); The solar panel (10) is mounted on the back of the drying box (1) via a bracket.

2. A drying device with monitoring function according to claim 1, characterized in that: The drying quality monitoring mechanism (3) comprises: A monitoring box (31) fixedly connected to the left end of the upper surface of the drying box (1); An alarm light (32) is installed on the front of the monitoring box (31); A first rotating shaft (33) is mounted at the center of the inner cavity of the monitoring box (31) via a bearing so as to be rotatable about its own axis; A first gear (34) mounted on an outer wall of the first rotating shaft (33); A weight detection component (35) fixedly connected to the left end of the upper surface of the monitoring box (31); A limiting cylinder (36) vertically fixedly connected to the right end of the lower surface of the monitoring box (31); A limiting rod (37) is inserted into the inner cavity of the limiting cylinder (36) so as to be slidable up and down, and the outer wall of the limiting rod (37) is in a rectangular shape; A bracket (38) is mounted on the bottom end of the limiting rod (37), and the tray containing soybeans is placed by means of the bracket (38); Two racks (39) are respectively mounted on the bottom end of the weight detection assembly (35) and the top end of the limit rod (37), and the racks (39) are meshingly connected with the first gear (34).

3. A drying device with monitoring function according to claim 2, characterized in that: The two racks (39) are oppositely distributed on both sides of the first gear (34).

4. A drying device with monitoring function according to claim 3, characterized in that: The weight detection component (35) comprises: A piston cylinder (351) vertically fixedly connected to the left end of the upper surface of the monitoring box (31); The piston (352) is inserted into the inner cavity of the piston cylinder (351) so as to slide up and down, and the bottom of the piston (352) is connected to the rack (39); Hydraulic oil (353) is filled in the inner cavity of the piston cylinder (351), and the hydraulic oil (353) is squeezed out by the piston (352) moving upward; A case (354) is fixedly connected to the top of the outer wall of the piston cylinder (351), a slideway (355) is provided on the top of the side wall of the case (354), and a plurality of positioning blind holes (356) are provided at equal intervals along the circumferential direction on the outer edge of the front side of the case (354); A dial (357) is mounted at the front end of the inner cavity of the watch case (354), and a weight unit is arranged on the dial (357); A second rotating shaft (358) is installed at the center of the inner cavity of the watch case (354) via a bearing so as to be rotatable around its own axis; The pointer (359) and the second gear (3510) are respectively mounted on the front and rear ends of the second rotating shaft (358); A Bourdon tube (3511), one end of which is mounted on the top of the left side wall of the piston cylinder (351); A sector gear (3512) is connected to the rear side of the inner cavity of the watch case (354) via a pin shaft, and the sector gear (3512) is meshingly connected with the second gear (3510); A connecting rod (3513), one end of which is connected to the other end of the Bourdon tube (3511) via a pin shaft, and the other end of the connecting rod (3513) is connected to the right end of the sector gear (3512) via a pin shaft, so that the Bourdon tube (3511) and the sector gear (3512) are linked via the connecting rod (3513); A sliding block (3514) slidably connected to the inner cavity of the slideway (355); A proximity switch (3515) is installed at the center of the slider (3514), and the proximity switch (3515) is electrically connected to the warning light (32); The spring (3516) and the ball (3517) are plugged into the front end of the inner cavity of the slider (3514) from the inside to the outside. Under the elastic force of the spring (3516), the ball (3517) is inserted into the inner cavity of the positioning blind hole (356) to position the slider (3514).

5. A drying device with monitoring function according to claim 4, characterized in that: When no tray is placed on the bracket (38), the pointer (359) points to the zero point of the dial (357).

6. A drying device with monitoring function according to claim 5, characterized in that: The positioning blind holes (356) correspond one to one with the scales on the dial (357).

7. A drying device with monitoring function according to claim 6, characterized in that: The purification mechanism (5) comprises: A purification box (51) is fixedly connected to the top of the right side wall of the drying box (1), and the bottom end of the right side wall of the purification box (51) is connected to the end of the second air pipe (8); A first air collecting hood (52) and a second air collecting hood (53) are respectively installed at the upper and lower ends of the purification box (51), and the top of the first air collecting hood (52) is connected to the end of the first air pipe (6); A collecting barrel (54) is screwed to the bottom end of the second gas collecting hood (53), and impurities are collected through the collecting barrel (54); The filter assembly (55) is installed transversely on the top of the right side wall of the purification box (51).

8. A drying device with monitoring function according to claim 7, characterized in that: The filtering assembly (55) comprises: A motor (551) is mounted on the top of the right side wall of the purification box (51); A net cylinder (552), one end of which is mounted on the output end of the motor (551), and the other end of which is connected to the left inner wall of the purification box (51) via a bearing, and the outer wall of the net cylinder (552) is infinitely close to the front and rear inner walls of the purification box (51); A plurality of paddles (553) are installed on the inner wall of the net cylinder (552) at equal intervals from left to right along the circumferential direction; Gravel (554) is filled in the inner cavity of the mesh cylinder (552).

9. A drying device with monitoring function according to claim 8, characterized in that: The particle size of the gravel (554) is larger than the pore size of the mesh tube (552).

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