Circulating fan drying system and drying method

Abstract

The invention discloses a circulating fan drying system and method, and belongs to the technical field of drying systems.The circulating fan drying system comprises a plurality of foot pads, the upper ends of the foot pads are fixedly connected with a drying oven, and the upper end of the drying oven is fixedly connected with a drying system; the drying system comprises an air blowing mechanism fixedly connected to the upper surface of the drying oven, the upper surface of the drying oven is fixedly connected with a fan shell, and the end, away from the air blowing mechanism, of the fan shell is fixedly connected with a circulating air inlet pipe. Through the use of the blowing mechanism, the driving mechanism and the drying mechanism, when a circulating fan drives air to circularly flow, moisture is absorbed, air entering the drying oven again is dried, the drying efficiency is improved, meanwhile, the drying mechanism can be repeatedly used, the overall use cost is greatly reduced, and through the arrangement of the drying oven shell and the inner container, the drying efficiency is improved. Air convection is facilitated, and the drying efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of drying systems, and in particular relates to a circulating fan drying system and a drying method. Background Art

[0002] Circulation fan is a common industrial equipment, widely used in air circulation, gas heat exchange, ventilation, exhaust and other application scenarios. Its main function is to circulate air or other gases through a rotating impeller to increase airflow, maintain gas circulation and other purposes. The circulation fan in the oven is a facility, usually located at the back or top of the oven, used to evenly distribute heat through air circulation during processing. Its function is to ensure that the material can be evenly heated by continuously circulating hot air to every corner of the oven, making the drying effect more uniform and faster. In order to avoid heat waste and repeated heating of air, the oven will push the air inside the oven through the circulation fan to circulate. It is first heated by the heating mechanism and blown into the oven. After that, the hot air rises and returns to the air inlet to complete the cycle. Under high heat, the moisture in the material evaporates into water vapor and flows with the air, so that the moisture in the material is taken away and can be dried quickly.

[0003] The water vapor content in the air is limited. If it exceeds the limit, the water vapor will not be able to continue to evaporate into the air. Humid air will cause the drying efficiency to decrease during the drying operation. At the same time, humid air will affect the stability and consistency of the drying equipment, causing changes in temperature and humidity during the drying process, thereby affecting the drying effect and quality consistency of the product. The amount of water that existing drying equipment can handle is limited, and it can only be replaced after the water absorption is completed, resulting in a significant decrease in the efficiency of the oven. In addition, the existing baking tray lacks a fixing mechanism, and it is easy to bump into it when putting it in and taking it out, causing the baking tray to slip out, posing a high safety hazard. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the disadvantages of the above-mentioned prior art and provide a circulating fan drying system and a drying method.

[0005] The technical solution adopted to solve the above technical problems is: a circulating fan drying system, comprising a plurality of foot pads, the upper ends of the plurality of foot pads are fixedly connected to ovens, the upper end of the ovens is fixedly connected to a drying system, the drying system comprises a blowing mechanism fixedly connected to the upper surface of the ovens, the upper surface of the ovens is fixedly connected to a fan housing, the end of the fan housing away from the blowing mechanism is fixedly connected to a circulating air inlet pipe, the end of the circulating air inlet pipe close to the fan housing is provided with a driving mechanism, and the end of the driving mechanism away from the blowing mechanism is provided with a drying mechanism; The oven comprises a shell fixedly connected to the upper end of the foot pad, an inner liner is fixedly connected in the shell, a plurality of ventilation holes are provided on both sides of the inner liner, a support frame is fixedly connected on both sides of the inner liner, and a tray is slidably connected to the support frame; The circulating air inlet pipe includes an air inlet duct fixedly connected to the fan housing, and the drying mechanism includes a water collecting ring fixedly connected in the air inlet duct, a first mounting plate is slidably provided on one side of the water collecting ring, and a second mounting plate is slidably provided on the side of the water collecting ring away from the first mounting plate, a plurality of felt sheets are fixedly connected between the first mounting plate and the water collecting ring, and a plurality of felt sheets are fixedly connected between the second mounting plate and the water collecting ring.

[0006] Through the above technical scheme, moisture in the air is absorbed by the felt sheet when passing through, and the felt sheet with pleats can increase the contact area with the air and improve the water absorption efficiency. Through the use of the blowing mechanism, the driving mechanism and the drying mechanism, the circulating fan drives the air to circulate and absorb moisture, so that the air re-entering the oven is dry, thereby improving the drying efficiency. At the same time, the drying mechanism can be reused, which greatly reduces the overall cost of use. The setting of the oven shell and the inner tank is conducive to air convection and improves the drying efficiency.

[0007] Furthermore, a collecting box is fixedly connected to the upper end of the shell, a pair of sealing doors are rotatably connected to one side of the shell, the collecting box is communicated with the interior of the inner tank, an air inlet is opened at the top of the shell, an electric heating tube is fixedly connected to the top of the shell, the inner side of the top of the inner tank is inclined, a plurality of guide plates are fixedly connected to the top of the inner tank, the collecting box is communicated with the air inlet duct, and the interiors of the shell and the sealing door are filled with thermal insulation material.

[0008] Through the above technical solution, the air blown out by the fan is first heated by the electric heating tube, then flows into the space between the shell and the inner tank, and then enters the inner tank from the ventilation holes on both sides, drying the materials placed on the support frame to turn the moisture into water vapor. After that, the hot air blown from the ventilation holes on both sides moves upward, carries the water vapor into the collection box through the guidance of the guide plate, and then enters the circulating air inlet pipe.

[0009] Furthermore, a plurality of heat dissipation fins are fixedly connected to the air inlet duct, a water outlet duct is fixedly connected to the lower side of the air inlet duct, and a plurality of slide grooves are provided in the air inlet duct.

[0010] Through the above technical solution, the hot air entering the air inlet duct can be cooled down, so that the water vapor can be condensed into water droplets.

[0011] Furthermore, a plurality of limit sliders are fixedly connected to the outside of the second mounting plate, and the limit sliders and the slide grooves are slidably matched with each other. A cavity is opened in the water collecting ring, and a plurality of water inlet holes are opened on the side wall of the water collecting ring. A fourth fixing frame is fixedly connected to the middle of the water collecting ring, and a pair of gears are rotatably connected to the fourth fixing frame. A first rack is fixedly connected to one end of the first mounting plate close to the water collecting ring, and a second rack is fixedly connected to one end of the second mounting plate close to the water collecting ring. The first rack and the gear are meshed with each other, and the second rack and the gear are meshed with each other.

[0012] Through the above technical scheme, the first mounting plate and the second mounting plate are driven by the driving mechanism to move relative to each other to squeeze the felt sheet, so that the moisture in the felt sheet enters the water collecting ring through the water inlet hole and is finally discharged through the water outlet pipe, so that the drying mechanism can be reused. Through the staggered arrangement of the first mounting plate, the water collecting ring and the second mounting plate, the air flow distance can be lengthened, which is beneficial to the absorption of moisture.

[0013] Furthermore, a water outlet is provided at the lower end of the water collecting ring, the lower end of the water outlet is connected to the water outlet pipe, and the upper end of the water outlet is connected to the cavity.

[0014] Through the above technical solution, the water in the water collecting ring can flow into the water outlet pipe through the water outlet and finally be discharged through the water outlet pipe.

[0015] Furthermore, the hair dryer mechanism includes a mounting frame fixedly connected to the upper surface of the shell, a motor is fixedly connected to the mounting frame, an output end of the motor is fixedly connected to an output shaft, an end of the output shaft away from the motor is fixedly connected to a centrifugal fan blade, and the centrifugal fan blade is located in the fan casing.

[0016] Through the above technical solution, the motor can drive the output shaft, the output shaft can drive the centrifugal fan blades, and the centrifugal fan blades can drive the air circulation.

[0017] Furthermore, the driving mechanism includes a transmission shaft fixedly connected to the centrifugal fan blades, a first fixed frame fixedly connected in the air inlet duct, a worm fixedly connected to the end of the transmission shaft away from the centrifugal fan blades, the worm penetrates and is rotatably connected to the first fixed frame, a second fixed frame fixedly connected in the air inlet duct near the worm, a third fixed frame fixedly connected in the air inlet duct, a worm gear rotatably connected between the second fixed frames, an eccentric driving ring fixedly connected to the worm gear, the worm gear and the worm gear meshing with each other, a pair of first connecting rods rotatably connected to the third fixed frame, a fixing stick fixedly connected between the first connecting rods, and a sliding sleeve rotatably connected to the end of the first connecting rod away from the third fixed frame.

[0018] Through the above technical scheme, the power of the motor to drive the centrifugal fan blades to rotate drives the worm to rotate through the transmission shaft, and the worm and worm wheel cooperate to drive the worm wheel to rotate, and the worm wheel drives the sliding sleeve to move through the action of the first connecting rod and the second connecting rod, thereby driving the first mounting plate and the second mounting plate to move, so that the first mounting plate and the second mounting plate move relative to each other, squeezing the felt sheet, squeezing out the moisture absorbed in the felt sheet, thereby facilitating the reuse of the felt sheet.

[0019] Furthermore, the end of the worm gear away from the transmission shaft is fixedly connected to a guide rod, the guide rod passes through a sliding sleeve that is slidably connected, the end of the sliding sleeve away from the guide rod is fixedly connected to a push rod, the end of the push rod away from the sliding sleeve is fixedly connected to a baffle, the outside of the baffle is slidably connected to a fixed sleeve, the end of the baffle close to the sliding sleeve is fixedly connected to a tension spring, the end of the tension spring away from the baffle is fixedly connected to the fixed sleeve, a second connecting rod is rotatably connected to the fixed stick, the end of the second connecting rod away from the fixed stick is fixedly connected to a slip ring, and an eccentric drive ring is rotatably connected inside the slip ring.

[0020] Through the above technical solution, the use of a tension spring can prevent the push rod from continuing to move and causing damage to the mounting plate when the mounting plate is stuck, leaving a buffer space for the movement of the push rod, and at the same time allowing the mounting plate to maintain pressure when closing, thereby completely squeezing out the moisture.

[0021] Furthermore, the baking tray includes a main body slidably connected to the support frame, both ends of the main body are penetrated by a moving rod slidably connected, one end of the moving rod is fixedly connected to a handle, a fixing plate is fixedly connected to the moving rod, one side of the fixing plate is fixedly connected to a first spring, and the side of the fixing plate away from the first spring is fixedly connected to a second spring, a socket is provided inside the oven, a locking groove is provided in the socket, an end of the main body away from the handle is fixedly connected to a pin, a plurality of steel balls are movably connected to the pin, a first groove is provided on the moving rod, and a second groove is provided on the moving rod.

[0022] Through the above technical solution, by setting the baking tray locking mechanism, the baking tray can be fixed in the oven by pushing or pulling the handle, thereby preventing the baking tray from moving during baking and causing uneven baking, thereby greatly improving safety during use.

[0023] Further, the following specific steps are included: Step 1: Open the sealed door, place the material on the baking tray and push it into the support frame. At this time, the latch is aligned with the insertion hole. When the handle is pushed inward, the handle drives the moving rod to move, so that the steel ball falls into the first groove, so that the latch can be inserted into the insertion hole. Then release the handle, and the first spring drives the moving rod to reset by pushing the fixing plate, so that the steel ball is pushed out by the moving rod into the locking groove to complete the locking; Step 2: Close the sealing door and start the motor. The motor drives the output shaft to rotate, and the output shaft drives the centrifugal fan blades to rotate. The centrifugal fan blades drive the air to pass through the air inlet and enter between the shell and the inner tank. At this time, the air is heated by the electric heating tube; Step 3: The heated air moves downward from both sides and then enters the inner tank through the ventilation holes to dry the materials on the tray; Step 4: The air on both sides of the inner tank collides with each other and moves upward, converting the moisture in the material into water vapor and taking it away. It then flows into the collection box along the guide plate and is sucked into the circulating air inlet duct. Step 5: When the air flows through the air inlet duct, the air dissipates heat and cools down under the action of the heat dissipation fins, so that the water vapor in the air is cooled and condensed, and then flows through the felt sheet between the second mounting plate and the first mounting plate. The condensed water is absorbed by the felt sheet, reducing the humidity of the air, and then re-enters between the shell and the inner tank through the drive of the centrifugal fan blades to complete the cycle; Step 6: While the air is circulating, the centrifugal fan blades drive the transmission shaft to rotate, the transmission shaft drives the worm to rotate, the worm drives the worm wheel to rotate, the worm wheel drives the eccentric driving ring to rotate, the eccentric driving ring drives the second connecting rod to rotate, the second connecting rod drives the first connecting rod to rotate, the first connecting rod drives the sliding sleeve to reciprocate outside the guide rod, thereby driving the baffle to reciprocate; Step 7: The baffle plate drives the fixing sleeve to reciprocate through the tension spring, the fixing sleeve drives the first mounting plate to reciprocate, the first mounting plate drives the gear to rotate through the first rack, the gear drives the second mounting plate to reciprocate through the second rack, the reciprocating motion of the first mounting plate and the second mounting plate squeezes the felt sheet, squeezes out the water absorbed by the felt sheet, makes the water enter the cavity through the limit slider, and flows into the water outlet pipe through the water outlet, and finally is discharged along the water outlet pipe, so that the felt sheet recovers its water absorption capacity; Step 8: When the baking operation is completed, the baking tray is moved outward by pulling the handle, thereby moving the moving rod, and the steel ball is pushed into the second groove by the locking groove, releasing the lock of the socket on the latch, so that the baking tray can be easily taken out.

[0024] The beneficial effects of the present invention are as follows: (1) The present invention arranges the oven shell and the inner tank so that the air blown out by the fan is first heated by the electric heating tube, then flows into the space between the shell and the inner tank, and then enters the inner tank from the ventilation holes on both sides, drying the materials placed on the support frame to convert the moisture into water vapor. Then, the hot air blown from the ventilation holes on both sides moves upward, carries the water vapor into the collection box through the guidance of the guide plate, and then enters the circulating air inlet pipe. At this time, the air temperature is lowered by the heat dissipation fins, thereby reducing the water content of the air, causing the moisture in the water-saturated air to condense. The water droplets are formed and absorbed by the drying mechanism, thereby reducing the air humidity and preventing the humid air from interfering with the drying operation; (2) The present invention uses a driving mechanism to drive the centrifugal fan blades to rotate through the transmission shaft, and the worm and the worm gear cooperate to drive the worm gear to rotate. The worm gear drives the sliding sleeve to move through the action of the first connecting rod and the second connecting rod, thereby driving the first mounting plate and the second mounting plate to move, so that the first mounting plate and the second mounting plate move relative to each other, squeezing the felt sheet, squeezing out the water absorbed in the felt sheet, thereby facilitating the reuse of the felt sheet; (3) The present invention The use of the drying mechanism allows the moisture in the air to be absorbed by the felt sheet when passing through. The felt sheet with pleats can increase the contact area with the air and improve the water absorption efficiency. The driving mechanism drives the drying mechanism to move, so that the first mounting plate and the second mounting plate move relative to each other to squeeze the felt sheet, so that the moisture in the felt sheet enters the water collecting ring through the water inlet hole and is finally discharged through the water outlet pipe, so that the drying mechanism can be reused. The staggered arrangement of the first mounting plate, the water collecting ring and the second mounting plate can lengthen the air flow distance, which is conducive to the absorption of moisture. (4) The present invention sets a baking tray locking mechanism, and the baking tray can be fixed in the oven by pushing or pulling the handle, so as to avoid the baking tray moving during the baking process and causing uneven baking, thereby greatly improving the safety during use. (5) The present invention can improve the overall insulation effect and avoid heat waste by filling the shell and the sealing door with insulation material. At the same time, by using the fan, when the temperature rises, although the air density decreases and becomes thinner, the fan can still push the air to circulate, thereby improving the drying effect of the oven and avoiding air flow. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is the overall structural diagram of the present invention; Figure 2 It is the internal structure diagram of the oven of the present invention; Figure 3 is a side sectional view of an oven of the present invention; Figure 4 It is the internal structure diagram of the oven top of the present invention; Figure 5 It is a structural diagram of the drying system of the present invention; Figure 6 is a side cross-sectional view of a drying system of the present invention; Figure 7 yes Figure 6 A magnified image of point A; Figure 8 It is the internal structure diagram of the air inlet pipe of the present invention; Fig. 9 It is a structural diagram of the driving mechanism of the present invention; Fig.10 is a cross-sectional view of the drying mechanism of the present invention; Fig.11 is an internal cross-sectional view of a water collecting ring of the present invention; Fig.12 is an exploded view of the drying mechanism of the present invention; Fig.13 It is the overall structural diagram of the baking tray of the present invention; Fig.14 It is a partial cross-sectional view of the baking tray locking mechanism of the present invention.

[0026] Figure numerals: 1, foot pad; 2, oven; 21, shell; 22, liner; 23, ventilation hole; 24, support frame; 25, guide plate; 26, collection box; 27, electric heating tube; 28, air inlet; 3, sealing door; 4, fan housing; 5, circulating air inlet pipe; 51, air inlet duct; 52, cooling fins; 53, water outlet pipe; 54, chute; 55, water outlet; 6, driving mechanism; 61, first fixed frame; 62, transmission shaft; 63, worm; 64, second fixed frame; 65, third fixed frame; 66, worm gear; 67, eccentric driving ring; 68, guide rod; 69, sliding sleeve; 610, push rod; 611, baffle; 612, tension spring; 613, fixed sleeve; 614, first connecting rod; 615, fixing rod; 616, second connecting rod; 617, sliding ring; 7, drying mechanism; 71, water collecting ring; 72, fourth fixing frame; 73, gear; 74, first rack; 75, first mounting plate; 76, felt sheet; 77, second rack; 78, second mounting plate; 79, limiting slider; 710, water inlet hole; 711, cavity; 8, hair dryer mechanism; 81, mounting frame; 82, motor; 83, output shaft; 84, centrifugal fan blade; 9, baking tray; 91, main body; 92, moving rod; 93, handle; 94, latch; 95, first groove; 96, second groove; 97, steel ball; 98, fixing plate; 99, first spring; 910, second spring; 911, jack; 912, locking groove. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] like Figure 1-Figure 14 As shown, a circulating fan drying system and drying method of this embodiment include a plurality of foot pads 1, a drying system is fixedly connected to the upper end of an oven 2, and a fan housing 4 is fixedly connected to the upper surface of the oven 2; The oven 2 includes a shell 21 fixedly connected to the upper end of the foot pad 1, an inner liner 22 is fixedly connected in the shell 21, a plurality of ventilation holes 23 are provided on both sides of the inner liner 22, support frames 24 are fixedly connected on both sides of the inner liner 22, a baking tray 9 is slidably connected to the support frames 24, and the setting of the support frames 24 can prevent the baking tray 9 from moving during operation to cause safety hazards, and the air is driven by the centrifugal fan blades 84 to pass through the air inlet 28 and enter between the shell 21 and the inner liner 22, and the air is heated by the electric heating tube 27.

[0029] like Figure 1-Figure 4 As shown, the upper ends of the plurality of foot pads 1 are fixedly connected with an oven 2, the upper end of the shell 21 is fixedly connected with a collecting box 26, one side of the shell 21 is rotatably connected with a pair of sealing doors 3, the collecting box 26 is connected with the inside of the inner liner 22, an air inlet 28 is provided at the top of the shell 21, an electric heating pipe 27 is fixedly connected to the top of the shell 21, the inner side of the top of the inner liner 22 is inclined, a plurality of guide plates 25 are fixedly connected to the top of the inner liner 22, the collecting box 26 is connected with the air inlet duct 51, and the air passes through the air inlet 28 and enters between the shell 21 and the inner liner 22. At this time, the air is heated by the electric heating pipe 27, and the heated air moves downward from both sides, and then enters the inner liner 22 through the ventilation holes 23 to dry the materials on the tray. After entering the inner liner 22, the air on both sides collides and moves upward, converting the moisture in the material into water vapor and taking it away, and enters the collecting box 26 along the guide plate 25, and is sucked into the circulating air inlet duct 5.

[0030] like Figure 5 and Figure 6 As shown, the end of the fan housing 4 away from the blowing mechanism 8 is fixedly connected to a circulating air inlet pipe 5, the circulating air inlet pipe 5 includes an air inlet duct 51 fixedly connected to the fan housing 4, a plurality of heat dissipation fins 52 are fixedly connected to the air inlet duct 51, a water outlet pipe 53 is fixedly connected to the lower side of the air inlet duct 51, and a plurality of slide grooves 54 are opened in the air inlet duct 51. When the air flows through the air inlet duct 51, the heat is dissipated and cooled under the action of the heat dissipation fins 52, so that the water vapor in the air is cooled and condensed.

[0031] like Figure 10-12As shown, a drying mechanism 7 is provided at one end of the driving mechanism 6 away from the hair dryer mechanism 8, and the drying mechanism 7 includes a water collecting ring 71 fixedly connected to the air inlet duct 51, a first mounting plate 75 is slidably provided on one side of the water collecting ring 71, and a second mounting plate 78 is slidably provided on the side of the water collecting ring 71 away from the first mounting plate 75, a plurality of felt sheets 76 are fixedly connected between the first mounting plate 75 and the water collecting ring 71, a plurality of felt sheets 76 are fixedly connected between the second mounting plate 78 and the water collecting ring 71, a plurality of limiting sliders 79 are fixedly connected to the outside of the second mounting plate 78, and the limiting slider 79 and the slide groove 54 slideably cooperate with each other, a cavity 711 is provided in the water collecting ring 71, a plurality of water inlet holes 710 are provided on the side wall of the water collecting ring 71, and a fourth fixing frame 72 is fixedly connected to the middle of the water collecting ring 71 A pair of gears 73 are rotatably connected to the fourth fixed frame 72, a first rack 74 is fixedly connected to one end of the first mounting plate 75 close to the water collecting ring 71, and a second rack 77 is fixedly connected to one end of the second mounting plate 78 close to the water collecting ring 71, the first rack 74 and the gear 73 are meshed with each other, the second rack 77 and the gear 73 are meshed with each other, the baffle 611 drives the fixed sleeve 613 to reciprocate through the tension spring 612, the fixed sleeve 613 drives the first mounting plate 75 to reciprocate, the first mounting plate 75 drives the gear 73 to rotate through the first rack 74, the gear 73 drives the second mounting plate 78 to reciprocate through the second rack 77, the reciprocating motion of the first mounting plate 75 and the second mounting plate 78 will squeeze the felt sheet 76, and squeeze out the moisture absorbed by the felt sheet 76.

[0032] A water outlet 55 is provided at the lower end of the water collecting ring 71, the lower end of the water outlet 55 is connected to the water outlet pipe 53, and the upper end of the water outlet 55 is connected to the cavity 711. Water enters the cavity 711 through the limiting slider 79, and flows into the water outlet pipe 53 through the water outlet 55, and is finally discharged along the water outlet pipe 53, thereby restoring the water absorption capacity of the felt sheet 76.

[0033] like Figure 6 and Figure 8 As shown, the drying system includes a blower mechanism 8 fixedly connected to the upper surface of the oven 2, the blower mechanism 8 includes a mounting frame 81 fixedly connected to the upper surface of the shell 21, a motor 82 is fixedly connected to the mounting frame 81, an output end of the motor 82 is fixedly connected to an output shaft 83, an end of the output shaft 83 away from the motor 82 is fixedly connected to a centrifugal fan blade 84, the centrifugal fan blade 84 is located in the fan housing 4, the motor 82 is started, the motor 82 drives the output shaft 83 to rotate, the output shaft 83 drives the centrifugal fan blade 84 to rotate, and the centrifugal fan blade 84 drives the air to move.

[0034] like Fig.13 and Fig.14As shown, the baking tray 9 includes a main body 91 slidably connected to the support frame 24, both ends of the main body 91 are penetrated by a moving rod 92 that is slidably connected, one end of the moving rod 92 is fixedly connected to a handle 93, a fixing plate 98 is fixedly connected to the moving rod 92, one side of the fixing plate 98 is fixedly connected to a first spring 99, and the side of the fixing plate 98 away from the first spring 99 is fixedly connected to a second spring 910, a plug hole 911 is provided inside the oven 2, a locking groove 912 is provided in the plug hole 911, and one end of the main body 91 away from the handle 93 is fixedly connected to a latch 94, and the latch 94 is movably connected to a plurality of The steel ball 97 is provided with a first groove 95 on the moving rod 92, and the second groove 96 is provided on the moving rod 92. The material is placed on the baking tray 9 and pushed into the support frame 24. At this time, the latch 94 is aligned with the insertion hole 911. When the handle 93 is pushed inward, the handle 93 drives the moving rod 92 to move, so that the steel ball 97 falls into the first groove 95, so that the latch 94 can be inserted into the insertion hole 911. Then, the handle 93 is released, and the first spring 99 drives the moving rod 92 to reset by pushing the fixing plate 98, so that the steel ball 97 is pushed out by the moving rod 92 into the locking groove 912 to complete the locking.

[0035] like Figure 7-Figure 9 As shown, a driving mechanism 6 is provided at one end of the circulating air inlet pipe 5 close to the fan housing 4, and the driving mechanism 6 includes a transmission shaft 62 fixedly connected to the centrifugal blades 84, a first fixed frame 61 is fixedly connected in the air inlet duct 51, and a worm 63 is fixedly connected at one end of the transmission shaft 62 away from the centrifugal blades 84, and the worm 63 penetrates and is rotatably connected to the first fixed frame 61, a second fixed frame 64 is fixedly connected at a position close to the worm 63 in the air inlet duct 51, and a third fixed frame 65 is fixedly connected in the air inlet duct 51, and a worm wheel 66 is rotatably connected between the second fixed frames 64, and an eccentric driving ring 67 is fixedly connected to the worm wheel 66, and the worm wheel 66 and the worm 63 mesh with each other. A pair of first connecting rods 614 are rotatably connected to the third fixed frame 65, a fixed rod 615 is fixedly connected between the first connecting rods 614, and one end of the first connecting rod 614 away from the third fixed frame 65 is rotatably connected to the sliding sleeve 69, the centrifugal blades 84 drive the transmission shaft 62 to rotate, the transmission shaft 62 drives the worm 63 to rotate, the worm 63 drives the worm wheel 66 to rotate, the worm wheel 66 drives the eccentric drive ring 67 to rotate, the eccentric drive ring 67 drives the second connecting rod 616 to rotate, the second connecting rod 616 drives the first connecting rod 614 to rotate, and the first connecting rod 614 drives the sliding sleeve 69 to reciprocate outside the guide rod 68, thereby driving the baffle 611 to reciprocate.

[0036] One end of the worm gear 63 away from the transmission shaft 62 is fixedly connected to a guide rod 68, and the guide rod 68 passes through a sliding sleeve 69 for sliding connection. One end of the sliding sleeve 69 away from the guide rod 68 is fixedly connected to a push rod 610, and one end of the push rod 610 away from the sliding sleeve 69 is fixedly connected to a baffle 611, and a fixed sleeve 613 is slidably connected outside the baffle 611. One end of the baffle 611 close to the sliding sleeve 69 is fixedly connected to a tension spring 612, and one end of the tension spring 612 away from the baffle 611 is fixedly connected to the fixed sleeve 613. A second connecting rod 616 is rotatably connected to the fixed rod 615, and one end of the second connecting rod 616 away from the fixed rod 615 is fixedly connected to a slip ring 617, and an eccentric driving ring 67 is rotatably connected inside the slip ring 617. The baffle 611 drives the fixed sleeve 613 to reciprocate through the tension spring 612, and the fixed sleeve 613 drives the first mounting plate 75 to reciprocate.

[0037] The specific steps include: Step 1: Open the sealing door 3, place the material on the baking tray 9 and push it into the support frame 24, at this time, the latch 94 is aligned with the insertion hole 911, when the handle 93 is pushed inward, the handle 93 drives the moving rod 92 to move, so that the steel ball 97 falls into the first groove 95, so that the latch 94 can be inserted into the insertion hole 911, and then the handle 93 is released, and the first spring 99 drives the moving rod 92 to reset by pushing the fixing plate 98, so that the steel ball 97 is pushed out by the moving rod 92 into the locking groove 912, and the locking is completed; Step 2: Close the sealing door 3 and start the motor 82. The motor 82 drives the output shaft 83 to rotate. The output shaft 83 drives the centrifugal blades 84 to rotate. The centrifugal blades 84 drive the air to pass through the air inlet 28 and enter between the shell 21 and the inner tank 22. At this time, the air is heated by the electric heating tube 27. Step 3: The heated air moves downward from both sides and then enters the inner container 22 through the ventilation holes 23 to dry the materials on the tray; Step 4: The air on both sides entering the inner container 22 collides with each other and moves upward, converting the moisture in the material into water vapor and taking it away, and then flows along the guide plate 25 into the collection box 26 and is sucked into the circulating air inlet pipe 5; Step 5: When the air flows through the air inlet duct 51, the air is cooled by the heat dissipation fins 52, so that the water vapor in the air is cooled and condensed, and then flows through the felt sheet 76 between the second mounting plate 78 and the first mounting plate 75. The condensed water is absorbed by the felt sheet 76 to reduce the humidity of the air, and then driven by the centrifugal blades 84 to re-enter between the shell 21 and the inner tank 22 to complete the cycle; Step 6: While the air is circulating, the centrifugal blades 84 drive the transmission shaft 62 to rotate, the transmission shaft 62 drives the worm 63 to rotate, the worm 63 drives the worm wheel 66 to rotate, the worm wheel 66 drives the eccentric driving ring 67 to rotate, the eccentric driving ring 67 drives the second connecting rod 616 to rotate, the second connecting rod 616 drives the first connecting rod 614 to rotate, the first connecting rod 614 drives the sliding sleeve 69 to reciprocate outside the guide rod 68, thereby driving the baffle 611 to reciprocate; Step 7: The baffle 611 drives the fixing sleeve 613 to reciprocate through the tension spring 612, and the fixing sleeve 613 drives the first mounting plate 75 to reciprocate, and the first mounting plate 75 drives the gear 73 to rotate through the first rack 74, and the gear 73 drives the second mounting plate 78 to reciprocate through the second rack 77. The reciprocating motion of the first mounting plate 75 and the second mounting plate 78 squeezes the felt sheet 76, squeezes out the water absorbed by the felt sheet 76, and makes the water enter the cavity 711 through the limit slider 79, and flows into the water outlet pipe 53 through the water outlet 55, and finally is discharged along the water outlet pipe 53, so that the felt sheet 76 recovers its water absorption capacity; Step 8: When the baking operation is completed, the baking tray 9 is moved outward by pulling the handle 93, thereby moving the moving rod 92, and the steel ball 97 is pushed into the second groove 96 by the locking groove 912, releasing the locking of the plug hole 911 on the latch 94, so that the baking tray 9 can be easily taken out.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention.

Claims

1. A circulating fan drying system, comprising a plurality of foot pads (1), characterized in that: The upper ends of the plurality of foot pads (1) are fixedly connected to an oven (2), the upper ends of the ovens (2) are fixedly connected to a drying system, the drying system comprising a blower mechanism (8) fixedly connected to the upper surface of the oven (2), a fan housing (4) fixedly connected to the upper surface of the oven (2), an end of the fan housing (4) away from the blower mechanism (8) is fixedly connected to a circulating air inlet pipe (5), an end of the circulating air inlet pipe (5) close to the fan housing (4) is provided with a driving mechanism (6), and an end of the driving mechanism (6) away from the blower mechanism (8) is provided with a drying mechanism (7); The oven (2) comprises a shell (21) fixedly connected to the upper end of the foot pad (1), an inner container (22) fixedly connected inside the shell (21), a plurality of ventilation holes (23) being provided on both sides of the inner container (22), a support frame (24) fixedly connected to both sides of the inner container (22), and a baking tray (9) being slidably connected to the support frame (24); The circulating air inlet pipe (5) comprises an air inlet duct (51) fixedly connected to the fan housing (4); the drying mechanism (7) comprises a water collecting ring (71) fixedly connected to the air inlet duct (51); a first mounting plate (75) is slidably provided on one side of the water collecting ring (71); a second mounting plate (78) is slidably provided on a side of the water collecting ring (71) away from the first mounting plate (75); a plurality of felt sheets (76) are fixedly connected between the first mounting plate (75) and the water collecting ring (71); and a plurality of felt sheets (76) are fixedly connected between the second mounting plate (78) and the water collecting ring (71).

2. A circulating fan drying system according to claim 1, characterized in that: A collection box (26) is fixedly connected to the upper end of the shell (21), a pair of sealing doors (3) are rotatably connected to one side of the shell (21), the collection box (26) is connected to the interior of the inner liner (22), an air inlet (28) is provided at the top of the shell (21), an electric heating pipe (27) is fixedly connected to the top of the shell (21), the inner side of the top of the inner liner (22) is inclined, a plurality of guide plates (25) are fixedly connected to the top of the inner liner (22), the collection box (26) is connected to the air inlet duct (51), and the interiors of the shell (21) and the sealing door (3) are filled with thermal insulation material.

3. A circulating fan drying system according to claim 1, characterized in that: A plurality of heat dissipation fins (52) are fixedly connected to the air inlet duct (51), a water outlet duct (53) is fixedly connected to the lower side of the air inlet duct (51), and a plurality of slide grooves (54) are provided in the air inlet duct (51).

4. A circulating fan drying system according to claim 3, characterized in that: A plurality of limit sliders (79) are fixedly connected to the outside of the second mounting plate (78), and the limit sliders (79) and the slide groove (54) are slidably matched with each other. A cavity (711) is provided in the water collecting ring (71), and a plurality of water inlet holes (710) are provided on the side wall of the water collecting ring (71). A fourth fixing frame (72) is fixedly connected to the middle of the water collecting ring (71), and a pair of gears (73) are rotatably connected to the fourth fixing frame (72). A first rack (74) is fixedly connected to one end of the first mounting plate (75) close to the water collecting ring (71), and a second rack (77) is fixedly connected to one end of the second mounting plate (78) close to the water collecting ring (71), and the first rack (74) and the gear (73) are meshed with each other, and the second rack (77) and the gear (73) are meshed with each other.

5. A circulating fan drying system according to claim 4, characterized in that: A water outlet (55) is provided at the lower end of the water collecting ring (71); the lower end of the water outlet (55) is connected to the water outlet pipe (53); and the upper end of the water outlet (55) is connected to the cavity (711).

6. A circulating fan drying system according to claim 1, characterized in that: The blower mechanism (8) comprises a mounting frame (81) fixedly connected to the upper surface of the housing (21); a motor (82) is fixedly connected to the mounting frame (81); an output end of the motor (82) is fixedly connected to an output shaft (83); an end of the output shaft (83) away from the motor (82) is fixedly connected to a centrifugal blade (84); and the centrifugal blade (84) is located in the blower housing (4).

7. A circulating fan drying system according to claim 6, characterized in that: The driving mechanism (6) comprises a transmission shaft (62) fixedly connected to the centrifugal blades (84); a first fixing frame (61) is fixedly connected in the air inlet duct (51); a worm (63) is fixedly connected to one end of the transmission shaft (62) away from the centrifugal blades (84); the worm (63) penetrates and is rotatably connected to the first fixing frame (61); a second fixing frame (64) is fixedly connected in a position close to the worm (63) in the air inlet duct (51); and a third fixing frame (64) is fixedly connected in the air inlet duct (51). A worm gear (66) is rotatably connected between the fixing frame (65) and the second fixing frame (64), an eccentric driving ring (67) is fixedly connected to the worm gear (66), the worm gear (66) and the worm (63) are meshed with each other, a pair of first connecting rods (614) are rotatably connected to the third fixing frame (65), a fixing rod (615) is fixedly connected between the first connecting rods (614), and a sliding sleeve (69) is rotatably connected to one end of the first connecting rod (614) away from the third fixing frame (65).

8. A circulating fan drying system according to claim 7, characterized in that: One end of the worm (63) away from the transmission shaft (62) is fixedly connected to a guide rod (68), the guide rod (68) penetrates and is slidably connected to a sliding sleeve (69), one end of the sliding sleeve (69) away from the guide rod (68) is fixedly connected to a push rod (610), one end of the push rod (610) away from the sliding sleeve (69) is fixedly connected to a baffle (611), the outside of the baffle (611) is slidably connected to a fixed sleeve (613), one end of the baffle (611) close to the sliding sleeve (69) is fixedly connected to a tension spring (612), one end of the tension spring (612) away from the baffle (611) is fixedly connected to the fixed sleeve (613), a second connecting rod (616) is rotatably connected to the fixed rod (615), one end of the second connecting rod (616) away from the fixed rod (615) is fixedly connected to a slip ring (617), and an eccentric driving ring (67) is rotatably connected inside the slip ring (617).

9. A circulating fan drying system according to claim 1, characterized in that: The baking tray (9) comprises a main body (91) slidably connected to a support frame (24); both ends of the main body (91) are penetrated by a moving rod (92) slidably connected thereto; one end of the moving rod (92) is fixedly connected to a handle (93); a fixing plate (98) is fixedly connected to the moving rod (92); one side of the fixing plate (98) is fixedly connected to a first spring (99); a side of the fixing plate (98) away from the first spring (99) is fixedly connected to a second spring (910); a plug hole (911) is provided inside the oven (2); a locking groove (912) is provided in the plug hole (911); one end of the main body (91) away from the handle (93) is fixedly connected to a latch (94); a plurality of steel balls (97) are movably connected to the latch (94); a first groove (95) is provided on the moving rod (92); and a second groove (96) is provided on the moving rod (92).

10. A drying method of a circulating fan drying system according to any one of claims 1 to 9, characterized in that: The specific steps include: Step 1: Open the sealing door (3), place the material on the baking tray (9) and push it into the support frame (24), at which time the latch (94) is aligned with the insertion hole (911), and when the handle (93) is pushed inward, the handle (93) drives the moving rod (92) to move, so that the steel ball (97) falls into the first groove (95), so that the latch (94) can be inserted into the insertion hole (911), and then the handle (93) is released, and the first spring (99) drives the moving rod (92) to reset by pushing the fixing plate (98), so that the steel ball (97) is pushed out by the moving rod (92) into the locking groove (912), and the locking is completed; Step 2: closing the sealing door (3) and starting the motor (82), the motor (82) drives the output shaft (83) to rotate, the output shaft (83) drives the centrifugal blades (84) to rotate, and the centrifugal blades (84) drive the air to pass through the air inlet (28) and enter between the shell (21) and the inner tank (22), and at this time the air is heated by the electric heating tube (27); Step 3: The heated air moves downward from both sides and then enters the inner container (22) through the ventilation holes (23) to dry the materials on the tray; Step 4: The air on both sides of the inner container (22) collides with each other and moves upward, converting the moisture in the material into water vapor and taking it away, and then flows along the guide plate (25) into the collection box (26) and is sucked into the circulating air inlet pipe (5); Step 5: When the air flows through the air inlet duct (51), the air is cooled by the heat dissipation fins (52), causing the water vapor in the air to cool and condense. The air then flows through the felt sheet (76) between the second mounting plate (78) and the first mounting plate (75), and the condensed water is absorbed by the felt sheet (76), thereby reducing the humidity of the air. The air is then driven by the centrifugal blades (84) to re-enter the space between the shell (21) and the inner tank (22), thus completing the cycle. Step 6: While the air is circulating, the centrifugal fan blades (84) drive the transmission shaft (62) to rotate, the transmission shaft (62) drives the worm (63) to rotate, the worm (63) drives the worm wheel (66) to rotate, the worm wheel (66) drives the eccentric drive ring (67) to rotate, the eccentric drive ring (67) drives the second connecting rod (616) to rotate, the second connecting rod (616) drives the first connecting rod (614) to rotate, the first connecting rod (614) drives the sliding sleeve (69) to reciprocate outside the guide rod (68), thereby driving the baffle (611) to reciprocate; Step 7: The baffle plate (611) drives the fixing sleeve (613) to reciprocate through the tension spring (612), the fixing sleeve (613) drives the first mounting plate (75) to reciprocate, the first mounting plate (75) drives the gear (73) to rotate through the first rack (74), the gear (73) drives the second mounting plate (78) to reciprocate through the second rack (77), the reciprocating motion of the first mounting plate (75) and the second mounting plate (78) squeezes the felt sheet (76), squeezes out the water absorbed by the felt sheet (76), and allows the water to enter the cavity (711) through the limit slider (79), and flow into the water outlet pipe (53) through the water outlet (55), and finally be discharged along the water outlet pipe (53), so that the felt sheet (76) can restore its water absorption capacity; Step 8: When the baking operation is completed, the handle (93) is pulled to move the baking tray (9) outward, thereby moving the moving rod (92) and pushing the steel ball (97) into the second groove (96) by the locking groove (912), thereby releasing the locking of the plug hole (911) on the latch (94), so that the baking tray (9) can be easily taken out.

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