A chain-type multifunctional ultrasonic bottle washing machine

Abstract

The present invention relates to the field of cleaning devices, and in particular to a chain-type multifunctional ultrasonic bottle washing machine, comprising a base and two chain conveyors, and also comprising a cleaning mechanism, a spraying mechanism, a cleaning mechanism and a grabbing mechanism. The cleaning mechanism comprises a first cleaning box, an ultrasonic transmitter, a plurality of containing components and a plurality of transducers. The spraying mechanism comprises a second cleaning box, a water supply component, an angle adjustment component, a plurality of nozzles and a plurality of spray pipes. The cleaning mechanism comprises a scooping frame, a transmission component, a pushing component and a swing component. The grabbing mechanism comprises a slide plate, a cylinder, a lifting plate, an electric slide rail, a flipping component and two clamping components. A vertical plate is fixedly provided on the top of the base, and the two clamping components are both arranged on the flipping component. The chain-type multifunctional ultrasonic bottle washing machine of the present invention can realize automatic liquid pouring before bottle cleaning, automatic cleaning after liquid pouring, automatic cleaning and automatic drying, so that the machine has multiple functions and one machine has multiple uses.

Description

Technical Field

[0001] The invention relates to the field of cleaning devices, in particular to a chain-type multifunctional ultrasonic bottle washing machine. Background Art

[0002] Ultrasonic bottle washing machine is a kind of equipment specially used for cleaning bottles. It has a high degree of automation and is suitable for ampoules with specifications of 1-20ml, vials with specifications of 2-100ml, mold bottles, oral liquid bottles, etc.

[0003] When the chain-type multifunctional ultrasonic bottle washing machine is working, the bottles to be washed are first automatically arranged and sent to the bottle supply slot, and ultrasonically roughly washed with tap water or ion water; after the bottles are subjected to ultrasonic "cavitation" action, foreign matter attached to the bottles falls off; then the bottles automatically enter the special bottle bucket, in a natural moving state, with the bottle mouth facing downward, to wash the outer wall of the bottle, so that foreign matter on the outer wall of the bottle does not enter the bottle, and then enter the inner wall washing station; the needle is automatically inserted into the bottle, and at the same time the pressing plate is pressed down, and water and air pressure fine washing and drying are carried out to complete the bottle cleaning work; then the bottles are rinsed with two groups of medicinal water; finally, they are dried with two groups of purified compressed air and enter the next process.

[0004] The prior art has the following deficiencies:

[0005] 1. The bottle mouth is facing downward in a natural state, the adjustment efficiency is low, and it is not convenient to quickly insert the needle into the bottle, thus reducing the cleaning efficiency.

[0006] 2. When using cleaning fluid to ultrasonically clean the bottle, the grease and oil stains on the bottle will fall off and float on the surface of the cleaning fluid. The grease and oil stains will accumulate and easily reduce the cleaning effect.

[0007] 3. When the existing device performs ultrasonic cleaning on the bottle body, the bottle body will carry a certain amount of cleaning liquid when leaving the cleaning box, thereby reducing the cleaning liquid in the cleaning box. However, the existing device is not designed with an automatic liquid replenishing structure, which easily reduces the cleaning effect.

[0008] 4. The existing device cannot simultaneously flush the inner and outer walls of several bottles, so it is not convenient to quickly flush the cleaning liquid attached to the bottle, and the cleaning efficiency is low.

[0009] 5. Before cleaning the general bottle, you need to pour out the residual liquid inside it and then clean it, otherwise it will contaminate the cleaning liquid and reduce the cleaning effect. Summary of the invention

[0010] The purpose of the present invention is to provide a chain-type multifunctional ultrasonic bottle washing machine.

[0011] To achieve this object, the present invention adopts the following technical solutions:

[0012] Provided is a chain-type multifunctional ultrasonic bottle washing machine, comprising a base and two chain conveyors;

[0013] It also includes a cleaning mechanism, a spraying mechanism, a cleaning mechanism and a grabbing mechanism;

[0014] The cleaning mechanism is arranged beside one of the chain conveyors, and the cleaning mechanism comprises a first cleaning box, an ultrasonic transmitter, a plurality of containing components and a plurality of transducers. The first cleaning box is arranged on the top of the base, the ultrasonic transmitter is fixedly arranged on the top of the base, and the containing components and the plurality of transducers are respectively fixedly arranged on the inner bottom and the outer bottom of the first cleaning box;

[0015] The spray mechanism is arranged between the first cleaning box and another chain conveyor, and the spray mechanism includes a second cleaning box, a water supply assembly, an angle adjustment assembly, a plurality of nozzles and a plurality of nozzle pipes. The second cleaning box is arranged between the first cleaning box and another chain conveyor, the water supply assembly is arranged on the top of the base, a U-shaped tube is fixedly arranged inside the second cleaning box, a plurality of nozzles are connected and arranged on the outer wall of the U-shaped tube, a support plate is fixedly arranged at the bottom of each nozzle, four rotating rods are arranged inside the second cleaning box through four first rotating shafts, a plurality of nozzles are fixedly arranged on the top of the four rotating rods, and the angle adjustment assembly is arranged between the outer wall of the second cleaning box and the four rotating rods;

[0016] The cleaning mechanism is arranged on the outer wall of the first cleaning box, and the cleaning mechanism includes a scooping frame, a transmission assembly, a pushing assembly and a swinging assembly. The swinging assembly is arranged on the first cleaning box, and the pushing assembly and the transmission assembly are both arranged on the second cleaning box. The transmission assembly drives the swinging assembly to operate through the pushing assembly. Two limit grooves are symmetrically arranged on the top of the first cleaning box, and slide bars are inserted in the two limit grooves. A limit plate is fixed on the outer wall of the slide bar, and the scooping frame is hingedly arranged at the bottom of the limit plate.

[0017] The grabbing mechanism is arranged on the top of the base, and the grabbing mechanism includes a slide plate, a cylinder, a lifting plate, an electric slide rail, a flipping assembly and two clamping assemblies. A vertical plate is fixedly provided on the top of the base, the electric slide rail is fixedly provided on the outer wall of the vertical plate, the slide plate is slidably provided on the outer wall of the electric slide rail, the cylinder is inserted on the slide plate, the lifting plate is fixedly provided on its output end, the flipping assembly is provided on the lifting plate, and the two clamping assemblies are both provided on the flipping assembly.

[0018] Furthermore, each containing assembly includes a circular ring, a block and a support rod. The support rod is fixed at the inner bottom of the first cleaning box. Several reinforcing rods are fixed on the outer wall of the support rod. The circular ring is fixed at the top of the several reinforcing rods. Several blocks are evenly spaced and arranged on the inner circle of the circular ring.

[0019] Furthermore, the angle adjustment assembly includes two bidirectional electric push rods, four first racks, four first cylindrical gears and four push blocks. A slide rail is fixedly provided on the outer wall of the second cleaning box. The two bidirectional electric push rods are fixedly provided on the top of the slide rail. The four push blocks are fixedly provided on the four output ends of the two bidirectional electric push rods. The four first racks are slidably provided on the bottom of the slide rail. Each push block is fixedly provided on an output end of a bidirectional electric push rod. Each first rack and an output end of each bidirectional electric push rod are respectively fixedly connected to the two ends of each push block. Each first cylindrical gear is fixedly provided on a first rotating shaft, and each first rack is meshedly connected with a first cylindrical gear.

[0020] Furthermore, the transmission assembly includes a first bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear, a synchronous belt and two synchronous wheels. The second rotating shaft, the third rotating shaft and the fourth rotating shaft are respectively provided on the outer walls of the second cleaning box. The first bevel gear is fixed on one of the first rotating shafts close to the second rotating shaft, the second bevel gear is fixed on the top of the second rotating shaft, the third bevel gear and the fourth bevel gear are respectively fixed on the bottom end of the second rotating shaft and one end of the third rotating shaft. The first bevel gear and the second bevel gear are meshingly connected, the third bevel gear and the fourth bevel gear are meshingly connected, the two synchronous wheels are respectively fixed on the other end of the third rotating shaft and one end of the fourth rotating shaft, and the synchronous belt is sleeved between the two synchronous wheels.

[0021] Furthermore, the pushing assembly includes a first turntable, a first connecting rod, a slide bar and a second rack. The first turntable is fixed at the other end of the fourth rotating shaft, the first connecting rod is hinged on the outer wall of the first turntable, a guide rail is fixed on the outer wall of the first cleaning box, the second rack is slidably arranged on the top of the guide rail, the slide bar is fixed at the bottom of the second rack, and the bottom of the slide bar is hinged to the end of the first connecting rod away from the first turntable.

[0022] Furthermore, the swing assembly includes a second cylindrical gear, a rocker arm and a hinge shaft. The hinge shaft is rotatably arranged on the outer wall of the first cleaning box. The rocker arm and the second cylindrical gear are both fixedly arranged on the hinge shaft. An end of the rocker arm away from the hinge shaft is provided with an avoidance groove for sliding of the sliding rod. One end of the sliding rod is plugged into the avoidance groove. A plurality of telescopic springs are fixedly arranged between the bottom of the limit plate and the top and bottom of the scooping frame. A storage cavity is provided at each end of the first cleaning box through a partition. A top rod is fixedly arranged inside one of the storage cavities, and a first water suction pump is fixedly arranged inside the other storage cavity. A suction pipe and a water inlet pipe are respectively fixedly arranged on the output end and the input end of the first water suction pump. The water inlet pipe passes through one of the partitions. A liquid level sensor is fixedly arranged inside the first cleaning box.

[0023] Furthermore, the flipping assembly includes a first motor, two third gears and two fourth gears. The first motor is fixed on the lifting plate, one of the third gears is fixed on its output end, the other third gear is rotatably arranged on the lifting plate, and the two fourth gears are rotatably arranged on the outer wall of the lifting plate through a hinged rod, and the two third gears and the two fourth gears are meshed and connected in sequence.

[0024] Furthermore, each clamping assembly includes a U-shaped plate, a support block, a second motor, a second turntable, two second connecting rods, two clamping plates and two sliders. The U-shaped plate is fixed to the end of the hinged rod away from the lifting plate, the support block is fixed to the open end of the U-shaped plate, a support plate is fixed inside the U-shaped plate, the second motor is inserted into the support plate, the second turntable is fixed on its output end, the two sliders are slidably arranged on the support block, each second connecting rod is hingedly arranged between one end of the second turntable and a slider, and each clamping plate is fixed to the end of a slider away from the second connecting rod.

[0025] Furthermore, the water supply assembly includes a water tank, a second water suction pump, an extraction pipe and a delivery pipe. The water tank and the second water suction pump are both fixed on the top of the base, the extraction pipe is fixed between the water tank and the input end of the second water suction pump, and the delivery pipe is fixed between the output end of the second water suction pump and the U-shaped pipe.

[0026] Furthermore, a drying chamber is fixedly provided on the top of one of the chain conveyors close to the second cleaning box, and three electric heating plates are fixedly provided inside the drying chamber.

[0027] Beneficial effects of the present invention:

[0028] 1. The present invention designs a grabbing mechanism, namely a slide plate, a cylinder, a lifting plate, an electric slide rail, a flip assembly and two clamping assemblies. Through the flip assembly, a plurality of bottles can be quickly driven to rotate 180 degrees synchronously, and the position of the bottle bottom and the bottle mouth can be swapped, thereby meeting different cleaning requirements of the bottle body and improving the cleaning efficiency. At the same time, the residual liquid in the bottle body can be dumped before cleaning to avoid contamination of the cleaning liquid, which is beneficial to improving the cleaning effect.

[0029] 2. The present invention designs a cleaning mechanism, namely a scooping frame, a transmission assembly, a pushing assembly and a swinging assembly, which can simultaneously scoop out the grease and oil stains accumulated on the surface of the cleaning liquid in the first cleaning box and pour them into the storage chamber while spraying the bottle body to flush the residual cleaning liquid on the inner and outer walls of the bottle body. Therefore, the contamination degree of the cleaning liquid in the first cleaning box can be reduced simultaneously during each spray cleaning of the bottle body after ultrasonic cleaning, thereby preventing the rapid contamination of the cleaning liquid due to the accumulation of grease and oil stains, thereby extending the use time and reducing the cleaning cost.

[0030] 3. The present invention designs a liquid level sensor, a water suction pipe and a water inlet pipe. When the liquid level sensor detects that the cleaning liquid inside the first cleaning tank is less than the set value inside the controller, the first water suction pump is started by control, so that new cleaning liquid is injected into the first cleaning tank through the water suction pipe and the water inlet pipe, so as to avoid the liquid level from decreasing and affecting the ultrasonic cleaning effect. One of the storage chambers away from the top rod is used to store the cleaning liquid, and at the same time provides the prerequisite for the scooping frame to continuously scoop up oil stains.

[0031] 4. The present invention designs a spray mechanism, namely, a second cleaning box, a water supply component, an angle adjustment component, a plurality of nozzles and a plurality of nozzle pipes. After a plurality of bottle bodies are put on the outer walls of the plurality of nozzle pipes, the plurality of nozzles and the plurality of nozzle pipes can simultaneously rinse the inner and outer walls of the plurality of bottle bodies, and quickly rinse off the cleaning liquid carried by the inner and outer walls of the bottle bodies after being removed from the first cleaning box, thereby improving the cleanliness of the plurality of bottle bodies after cleaning, and further improving the cleaning effect.

[0032] 5. The present invention links the spray mechanism and the cleaning mechanism by designing a transmission component so that the two can operate synchronously, that is, the bottle body can spray and flush the residual cleaning liquid on the inner and outer walls of the bottle body, and at the same time, the grease and oil stains accumulated on the surface of the cleaning liquid in the first cleaning box can be removed. This is not only beneficial to reducing the overall number of driving sources used by the machine, reducing power consumption, and thus reducing cleaning costs, but also beneficial to reducing the overall structure of the machine and reducing the cost.

[0033] 6. The present invention can realize automatic pouring of liquid before bottle cleaning, automatic washing, automatic cleaning and automatic drying after pouring by designing a cleaning mechanism, a spraying mechanism, a cleaning mechanism and a grabbing mechanism, so that the machine has multiple functions and can be used for multiple purposes, further improving the intelligence and automation of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings in the embodiment of the present invention are briefly introduced below.

[0035] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0036] Figure 2 for Figure 1 A in the enlarged view;

[0037] Figure 3 for Figure 1 The enlarged view of point B in the figure;

[0038] Figure 4 It is a front view of the present invention;

[0039] Figure 5 for Figure 4 The enlarged view of point C in the figure;

[0040] Figure 6 It is a schematic diagram of the cross-sectional structure of the first cleaning box and the second cleaning box of the present invention;

[0041] Figure 7 for Figure 6 The enlarged view of D in the figure;

[0042] Figure 8 It is a schematic diagram of the cross-sectional structure of the second cleaning box of the present invention;

[0043] Fig. 9 for Figure 8 The enlarged view of point E in the figure;

[0044] Fig.10 for Figure 8 The enlarged view of F in the figure;

[0045] Fig.11 is a plan cross-sectional view of a first cleaning tank of the present invention;

[0046] Fig.12 for Fig.11 The enlarged view of G in the figure;

[0047] In the figure: chain conveyor 1, first cleaning box 2, ultrasonic transmitter 3, holding component 4, transducer 5, second cleaning box 6, water supply component 7, angle adjustment component 8, nozzle 9, nozzle 10, U-shaped tube 11, support plate 12, rotating rod 13, scooping frame 14, transmission component 15, pushing component 16, swinging component 17, limiting groove 18, sliding rod 19, limiting plate 20, sliding plate 21, cylinder 22, lifting plate 23, electric slide rail 24, flipping component 25, clamping component 26, ring 27, block 28, support rod 29, reinforcing rod 30, bidirectional electric push rod 31, first rack 32, first cylindrical gear 33, push block 34, first bevel gear 35, second bevel gear 36 , the third bevel gear 37, the fourth bevel gear 38, the synchronous belt 39, the synchronous wheel 40, the first turntable 41, the first connecting rod 42, the slide bar 43, the second rack 44, the second cylindrical gear 45, the rocker arm 46, the hinge shaft 47, the telescopic spring 48, the storage chamber 49, the push rod 50, the first water suction pump 51, the suction pipe 52, the water inlet pipe 53, the liquid level sensor 54, the first motor 55, the third gear 56, the fourth gear 57, the hinge rod 58, the U-shaped plate 59, the support block 60, the second motor 61, the second turntable 62, the second connecting rod 63, the clamping plate 64, the slider 65, the water tank 66, the second water suction pump 67, the extraction pipe 68, the delivery pipe 69, the drying chamber 70, and the electric heating plate 71. DETAILED DESCRIPTION

[0048] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0049] Among them, the drawings are only used for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings will be omitted, enlarged or reduced, and do not represent the size of the actual product.

[0050] Reference Figures 1 to 12 As shown, a chain-type multifunctional ultrasonic bottle washing machine comprises a base and two chain conveyors 1; a plurality of lap rods are evenly spaced on each chain conveyor 1, and every two adjacent lap rods cooperate to support a plurality of bottles, and the top of each lap rod is integrally formed with a groove for facilitating the upright and inverted placement of the bottles;

[0051] It also includes a cleaning mechanism, a spraying mechanism, a cleaning mechanism and a grabbing mechanism;

[0052] The cleaning mechanism is arranged beside one of the chain conveyors 1, and the cleaning mechanism comprises a first cleaning box 2, an ultrasonic transmitter 3, a plurality of containing components 4 and a plurality of transducers 5. The first cleaning box 2 is arranged on the top of the base, the ultrasonic transmitter 3 is fixedly arranged on the top of the base, and the containing components 4 and the plurality of transducers 5 are respectively fixedly arranged on the inner bottom and the outer bottom of the first cleaning box 2;

[0053] The spray mechanism is arranged between the first cleaning box 2 and another chain conveyor 1, and the spray mechanism includes a second cleaning box 6, a water supply component 7, an angle adjustment component 8, a plurality of nozzles 9 and a plurality of spray pipes 10. The second cleaning box 6 is arranged between the first cleaning box 2 and another chain conveyor 1, and the water supply component 7 is arranged on the top of the base. A U-shaped tube 11 is fixedly arranged inside the second cleaning box 6, and a plurality of spray pipes 10 are connected and arranged on the outer wall of the U-shaped tube 11. A support plate 12 is fixedly arranged at the bottom of each spray pipe 10. Four rotating rods 13 are rotatably arranged inside the second cleaning box 6 through four first rotating shafts, and a plurality of nozzles 9 are fixedly arranged on the top of the four rotating rods 13. The angle adjustment component 8 is arranged between the outer wall of the second cleaning box 6 and the four rotating rods 13;

[0054] The cleaning mechanism is arranged on the outer wall of the first cleaning box 2, and the cleaning mechanism includes a scooping frame 14, a transmission assembly 15, a pushing assembly 16 and a swinging assembly 17. The swinging assembly 17 is arranged on the first cleaning box 2, and the pushing assembly 16 and the transmission assembly 15 are both arranged on the second cleaning box 6. The transmission assembly 15 drives the swinging assembly 17 to operate through the pushing assembly 16. Two limiting grooves 18 are symmetrically arranged on the top of the first cleaning box 2, and slide bars 19 are inserted into the two limiting grooves 18. A limiting plate 20 is fixed on the outer wall of the slide bar 19, and the scooping frame 14 is hingedly arranged at the bottom of the limiting plate 20;

[0055] The grabbing mechanism is arranged at the top of the base, and the grabbing mechanism includes a slide plate 21, a cylinder 22, a lifting plate 23, an electric slide rail 24, a flipping assembly 25 and two clamping assemblies 26. A vertical plate is fixedly arranged on the top of the base, the electric slide rail 24 is fixedly arranged on the outer wall of the vertical plate, the slide plate 21 is slidably arranged on the outer wall of the electric slide rail 24, the cylinder 22 is inserted on the slide plate 21, the lifting plate 23 is fixedly arranged on its output end, the flipping assembly 25 is arranged on the lifting plate 23, and the two clamping assemblies 26 are both arranged on the flipping assembly 25.

[0056] Reference Figures 1 to 12 As shown, each containing assembly 4 includes a ring 27, a block 28 and a support rod 29, the support rod 29 is fixedly arranged at the inner bottom of the first cleaning box 2, a plurality of reinforcing rods 30 are fixedly arranged on the outer wall of the support rod 29, the ring 27 is fixedly arranged at the top of the plurality of reinforcing rods 30, and a plurality of blocks 28 are arranged at equal intervals on the inner circle of the ring 27. When the residual liquid in the plurality of bottles is poured out, the slide plate 21 is driven by the electric slide rail 24 to slide toward one end close to the first cleaning box 2. When the slide is slid to the point where the bottle mouths of the plurality of bottles are aligned with the plurality of rice containing assemblies, the plurality of bottles are lifted by the lifting cylinder 22. The inverted bottles are placed vertically in the center of several rings 27, and several blocks 28 can clamp the outer wall of the bottle body to limit it. Then, the ultrasonic generator is started by the controller, and the high-frequency oscillation signal emitted by the ultrasonic generator is converted into high-frequency mechanical oscillation through the transducer 5 and propagated to the cleaning liquid in the first cleaning box 2, so that the dirt on the inner and outer walls of several bottles can be vibrated off by the vibration of the cleaning liquid to achieve the ultrasonic cleaning effect. Then, the cleaned bottles are grabbed from the first cleaning box 2 by two clamping plates 64 and transported to the second cleaning box 6 through the slide plate 21.

[0057] Reference Figures 1 to 12As shown, the angle adjustment assembly 8 includes two bidirectional electric push rods 31, four first racks 32, four first cylindrical gears 33 and four push blocks 34. A slide rail is fixedly arranged on the outer wall of the second cleaning box 6. The two bidirectional electric push rods 31 are fixedly arranged on the top of the slide rail. The four push blocks 34 are fixedly arranged on the four output ends of the two bidirectional electric push rods 31. The four first racks 32 are slidably arranged on the bottom of the slide rail. Each push block 34 is fixedly arranged on an output end of a bidirectional electric push rod 31. Each first rack 32 and an output end of each bidirectional electric push rod 31 are respectively fixedly connected to the two ends of each push block 34. Each first cylindrical gear 33 is fixedly arranged on a first rotating shaft. Each first rack 32 is meshedly connected with a first cylindrical gear 33. When the interior of the U-shaped tube 11 is filled with water, the water will rush out from the spray hole arranged on the spray pipe 10. In this way, the inner walls of several bottles are washed. A hose is fixedly arranged between each nozzle 9 and the U-shaped tube 11. When the nozzle 10 sprays water, water enters the inside of several nozzles 9 from the hose and then rushes out to wash the outer walls of several bottles. At this time, two two-way electric push rods 31 are started by the controller, so that the two first racks 32 on the two output ends of each two-way electric push rod 31 are separated from each other, each first rack 32 and an output end of each two-way electric push rod 31 are respectively fixedly connected to the two ends of each push block 34, each first cylindrical gear 33 is fixedly connected to a first rotating shaft, each first rack 32 is meshed with a first cylindrical gear 33, and several nozzles 9 are fixedly connected to four rotating rods 13, thereby driving several nozzles 9 to rotate from bottom to top, so as to facilitate the washing of the entire outer wall of several bottles and prevent omissions.

[0058] Reference Figures 1 to 12As shown, the transmission assembly 15 includes a first bevel gear 35, a second bevel gear 36, a third bevel gear 37, a fourth bevel gear 38, a synchronous belt 39 and two synchronous wheels 40. The outer wall of the second cleaning box 6 is respectively provided with a second rotating shaft, a third rotating shaft and a fourth rotating shaft. The first bevel gear 35 is fixedly arranged on one of the first rotating shafts close to the second rotating shaft, the second bevel gear 36 is fixedly arranged on the top of the second rotating shaft, the third bevel gear 37 and the fourth bevel gear 38 are respectively fixedly arranged on the bottom end of the second rotating shaft and one end of the third rotating shaft, the first bevel gear 35 and the second bevel gear 36 are meshed and connected, the third bevel gear 37 and the fourth bevel gear 38 are meshed and connected, the two synchronous wheels 40 are respectively fixedly arranged on the other end of the third rotating shaft and one end of the fourth rotating shaft, and the synchronous belt 39 is sleeved. Between the two synchronous wheels 40, while the rotating rod 13 drives several nozzles 9 to rotate from bottom to top, since the rotating rod 13 is rotatably connected to the second cleaning box 6 through the first rotating shaft, the first bevel gear 35 is fixedly connected to one of the first rotating shafts close to the second rotating shaft, the second bevel gear 36 is fixedly connected to the top of the second rotating shaft, the third bevel gear 37 and the fourth bevel gear 38 are fixedly connected to the bottom end of the second rotating shaft and one end of the third rotating shaft respectively, the first bevel gear 35 and the second bevel gear 36 are meshedly connected, the third bevel gear 37 and the fourth bevel gear 38 are meshedly connected, the two synchronous wheels 40 are fixedly connected to the other end of the third rotating shaft and one end of the fourth rotating shaft respectively, and the two synchronous wheels 40 are sleeved through the synchronous belt 39, thereby driving the fourth rotating shaft to rotate counterclockwise.

[0059] Reference Figures 1 to 12 As shown, the pushing assembly 16 includes a first turntable 41, a first connecting rod 42, a slide bar 43 and a second rack 44. The first turntable 41 is fixedly arranged at the other end of the fourth rotating shaft, the first connecting rod 42 is hingedly arranged on the outer wall of the first turntable 41, a guide rail is fixedly arranged on the outer wall of the first cleaning box 2, the second rack 44 is slidably arranged on the top of the guide rail, the slide bar 43 is fixedly arranged at the bottom of the second rack 44, and the bottom of the slide bar 43 is hinged to the end of the first connecting rod 42 away from the first turntable 41. When the fourth rotating shaft rotates counterclockwise, since the first turntable 41 and the first connecting rod 42 are both fixedly connected to the fourth rotating shaft, the second rack 44 is slidably connected to the guide rail, the bottom of the slide bar 43 and the first turntable 41 are respectively hinged to the two ends of the first connecting rod 42, so that the second rack 44 slides inside the guide rail toward the end away from the first turntable 41.

[0060] Reference Figures 1 to 12As shown, the swing assembly 17 includes a second cylindrical gear 45, a swing rod 46 and a hinge shaft 47. The hinge shaft 47 is rotatably arranged on the outer wall of the first cleaning box 2. The swing rod 46 and the second cylindrical gear 45 are both fixedly arranged on the hinge shaft 47. The end of the swing rod 46 away from the hinge shaft 47 is provided with an avoidance groove for the sliding rod 19 to slide. One end of the sliding rod 19 is plugged into the avoidance groove. A plurality of telescopic springs 48 are fixedly arranged between the bottom of the limit plate 20 and the top and bottom of the scooping frame 14. Each end of the first cleaning box 2 is provided with a storage cavity through a partition. 49, a push rod 50 is fixedly arranged inside one storage chamber 49, a first water suction pump 51 is fixedly arranged inside the other storage chamber 49, a water suction pipe 52 and a water inlet pipe 53 are fixedly arranged on the output end and the input end of the first water suction pump 51, respectively, the water inlet pipe 53 passes through one of the partitions, a liquid level sensor 54 is fixedly arranged inside the first cleaning box 2, when the second rack 44 slides inside the guide rail toward the end away from the first rotating disk 41, the second cylindrical gear 4 5 and the swing rod 46 are fixedly connected to the hinge shaft 47, thereby driving the hinge shaft 47 to rotate clockwise. Since the slide bar 19 is plugged into the avoidance groove on the swing rod 46, the swing rod 46 is plugged into the two limit grooves 18, and the two limit grooves 18 are both high at both ends and low in the middle, the scooping frame 14 starts to descend when entering the first cleaning box 2, and the oil and grease on the surface of the cleaning liquid are scooped. When it slides to the top of another partition and contacts with the top rod 50, a plurality of telescopic springs 48 are forced to shrink, so that the scooping frame 14 moves along the hinge. The contact rotates toward one end close to the spring, and then the scooped grease and oil are poured into the storage chamber 49 to improve the cleanliness of the cleaning liquid and facilitate multiple uses. When the liquid level sensor 54 detects that the cleaning liquid inside the first cleaning tank 2 is less than the set value inside the controller, the first water suction pump 51 is started through control, thereby injecting new cleaning liquid into the first cleaning tank 2 through the suction pipe 52 and the water inlet pipe 53 to avoid the liquid level from lowering and affecting the ultrasonic cleaning effect. One of the storage chambers 49 away from the top rod is used to store the cleaning liquid.

[0061] Reference Figures 1 to 12As shown, the flip assembly 25 includes a first motor 55, two third gears 56 and two fourth gears 57. The first motor 55 is fixed on the lifting plate 23, one of the third gears 56 is fixed on its output end, the other third gear 56 is rotatably arranged on the lifting plate 23, and the two fourth gears 57 are rotatably arranged on the outer wall of the lifting plate 23 through a hinge rod 58. The two third gears 56 and the two fourth gears 57 are meshed and connected in sequence. When a plurality of bottles are pulled out of the grooves on the plurality of overlapping rods, the first motor 55 is started by the controller. One of the third gears 56 is fixedly connected to its output end, the other third gear 56 is rotatably connected to the lifting plate 23, and the two fourth gears 57 are rotatably connected to the lifting plate 23 through the hinge rod 58. The two third gears 56 and the two fourth gears 57 are meshed and connected in sequence, so that the four clamping plates 64 are flipped 180 degrees, driving the several bottles thereon to rotate 180 degrees, and pouring out the residue in the bottle body, which is convenient for subsequent ultrasonic cleaning and improves the cleaning efficiency. A collection box is provided at the bottom of the chain conveyor 1 on the left side to collect the poured residual liquid.

[0062] Reference Figures 1 to 12 As shown, each clamping assembly 26 includes a U-shaped plate 59, a support block 60, a second motor 61, a second turntable 62, two second connecting rods 63, two clamping plates 64 and two sliders 65. The U-shaped plate 59 is fixedly arranged at one end of the hinge rod 58 away from the lifting plate 23, the support block 60 is fixedly arranged on the open end of the U-shaped plate 59, a support plate is fixedly arranged inside the U-shaped plate 59, the second motor 61 is inserted on the support plate, the second turntable 62 is fixedly arranged on its output end, the two sliders 65 are slidably arranged on the support block 60, each second connecting rod 63 is hingedly arranged between one end of the second turntable 62 and one slider 65, and each clamping plate 64 is fixedly arranged at one end of a slider 65 away from the second connecting rod 63. The bottle washing machine is used in conjunction with a PLC controller, and each electrical device on the machine is electrically connected to the controller. When the chain conveyor 1 on the left side of the top of the base drives the several bottles prevented thereon to be transported to the bottom of the two clamping plates 64, the cylinder 22 is started by the controller, so that its output end drives the lifting plate 23 to descend, thereby driving the two clamping plates 64 of the lifting plate 23 to descend. When the two clamping plates 64 descend to the middle position of the several bottles, the second motor 61 is started by the controller, so that its output end drives the second turntable 62 to rotate. Since each slider 65 is slidably connected to the support block 60, each clamping plate 64 is fixedly connected to a slider 65, one end of the second turntable 62 and a slider 65 are respectively hinged to the two ends of each second connecting rod 63, thereby driving the two clamping plates 64 to approach each other, clamping the several bottles, and then pulling the several bottles out of the grooves on the several overlapping rods through the cylinder 22.

[0063] Reference Figures 1 to 12As shown, the water supply assembly 7 includes a water tank 66, a second water suction pump 67, an extraction pipe 68 and a delivery pipe 69. The water tank 66 and the second water suction pump 67 are both fixedly arranged on the top of the base, the extraction pipe 68 is fixedly arranged between the input ends of the water tank 66 and the second water suction pump 67, and the delivery pipe 69 is fixedly arranged between the output end of the second water suction pump 67 and the U-shaped tube 11. When the two clamping plates 64 grab a number of inverted bottle bodies to the top of a number of nozzles 10, the bottle mouths of the several bottle bodies are put on the outer walls of the several nozzles 10, and the several support plates 12 play the role of supporting the bottle mouths, and then the second water suction pump 67 is started by the controller, and water is injected from the inside of the water tank 66 into the inside of the U-shaped tube 11 through the extraction pipe 68 and the delivery pipe 69.

[0064] Reference Figures 1 to 12 As shown, a drying chamber 70 is fixedly provided on the top of one of the chain conveyors 1 close to the second cleaning box 6, and three electric heating plates 71 are fixedly provided inside the drying chamber 70. When the inner and outer walls of several bottles are sprayed with clean water inside the second cleaning box 6, the several bottles are grabbed onto the chain conveyor 1 located on the right side of the base through two clamping plates 64, and then the sprayed bottles are conveyed to the inside of the drying chamber 70 through the chain conveyor 1, and then the three electric heating plates 71 are started by the controller to dry them.

[0065] Working principle of the present invention: the bottle washing machine is used in conjunction with a PLC controller, and all electrical devices on the machine are electrically connected to the controller. When the chain conveyor 1 located on the left side of the top of the base drives the several bottles prevented thereon to be transported to the bottom of the two clamping plates 64, the cylinder 22 is started by the controller, so that its output end drives the lifting plate 23 to descend, thereby driving the two clamping plates 64 of the lifting plate 23 to descend. When the two clamping plates 64 descend to the middle position of the several bottles, the second motor 61 is started by the controller, so that its output end drives the second turntable 62 to rotate. Since each slider 65 is slidably connected to the support block 60, each clamping plate 64 is fixedly connected to a slider 65, one end of the second turntable 62 and a slider 65 are respectively hinged to the two ends of each second connecting rod 63, thereby driving the two clamping plates 64 to approach each other, clamping the several bottles, and then pulling the several bottles out of the grooves on the several overlapping rods through the cylinder 22.

[0066] When several bottles are pulled out from the grooves on several overlapping rods, the first motor 55 is started by the controller. Since one of the third gears 56 is fixedly connected to its output end, the other third gear 56 is rotatably connected to the lifting plate 23, and the two fourth gears 57 are rotatably connected to the lifting plate 23 through the hinge rod 58. The two third gears 56 and the two fourth gears 57 are meshed and connected in sequence, so that the four clamping plates 64 are flipped 180 degrees, driving the several bottles thereon to rotate 180 degrees, and pouring out the residue in the bottle body, which is convenient for subsequent ultrasonic cleaning and improves the cleaning efficiency. A collection box is provided at the bottom of the chain conveyor 1 on the left side to collect the poured residual liquid.

[0067] After the residual liquid in the several bottles is poured out, the slide plate 21 is driven by the electric slide rail 24 to slide toward one end close to the first cleaning box 2. When the several bottles' mouths are aligned with the several rice serving components, the several inverted bottles are vertically placed into the center of the several rings 27 by the lifting cylinder 22. The several blocks 28 can clamp the outer wall of the bottles to limit the position. Then, the ultrasonic generator is started by the controller, and the high-frequency oscillation signal emitted by the ultrasonic generator is converted into high-frequency mechanical oscillation by the transducer 5 and propagated to the cleaning liquid in the first cleaning box 2, so that the dirt on the inner and outer walls of the several bottles is vibrated off by the vibration of the cleaning liquid to achieve the ultrasonic cleaning effect. Then, the several cleaned bottles are grabbed from the first cleaning box 2 by the two clamping plates 64 and transported to the second cleaning box 6 by the slide plate 21.

[0068] After the two clamping plates 64 grab the several inverted bottles to the top of the several nozzles 10, the bottle mouths of the several bottles are put on the outer walls of the several nozzles 10, and the several supporting plates 12 play the role of supporting the bottle mouths. Then, the second water suction pump 67 is started by the controller to inject water from the inside of the water tank 66 into the inside of the U-shaped tube 11 through the extraction pipe 68 and the delivery pipe 69.

[0069] When the interior of the U-shaped tube 11 is filled with water, water will rush out from the spray hole set on the spray pipe 10, so as to wash the inner walls of several bottles. A hose is fixedly arranged between each nozzle 9 and the U-shaped tube 11. When the spray pipe 10 sprays water, water enters the interior of several nozzles 9 from the hose and then rushes out to wash the outer walls of several bottles. At this time, two bidirectional electric push rods 31 are started by the controller, so that the two first racks 32 on the two output ends of each bidirectional electric push rod 31 are separated from each other, each first rack 32 and one output end of each bidirectional electric push rod 31 are respectively fixedly connected to the two ends of each push block 34, each first cylindrical gear 33 is fixedly connected to a first rotating shaft, each first rack 32 is meshed with a first cylindrical gear 33, and several nozzles 9 are fixedly connected to the four rotating rods 13, thereby driving several nozzles 9 to rotate from bottom to top, so as to facilitate the washing of the entire outer wall of several bottles to prevent omissions.

[0070] While the rotating rod 13 drives several nozzles 9 to rotate from bottom to top, since the rotating rod 13 is rotatably connected to the second cleaning box 6 through the first rotating shaft, the first bevel gear 35 is fixedly connected to one of the first rotating shafts close to the second rotating shaft, the second bevel gear 36 is fixedly connected to the top of the second rotating shaft, the third bevel gear 37 and the fourth bevel gear 38 are fixedly connected to the bottom end of the second rotating shaft and one end of the third rotating shaft respectively, the first bevel gear 35 and the second bevel gear 36 are meshingly connected, the third bevel gear 37 and the fourth bevel gear 38 are meshingly connected, the two synchronous wheels 40 are fixedly connected to the other end of the third rotating shaft and one end of the fourth rotating shaft respectively, and the two synchronous wheels 40 are connected by the synchronous belt 39, thereby driving the fourth rotating shaft to rotate counterclockwise.

[0071] When the fourth shaft rotates counterclockwise, since the first turntable 41 and the first connecting rod 42 are fixedly connected to the fourth shaft, the second rack 44 is slidably connected to the guide rail, and the bottom of the slide bar 43 and the first turntable 41 are respectively hinged to the two ends of the first connecting rod 42, so that the second rack 44 slides inside the guide rail toward the end away from the first turntable 41.

[0072] When the second rack 44 slides inside the guide rail toward the end away from the first turntable 41, since the hinge shaft 47 is rotatably connected to the outer wall of the first cleaning box 2, the second cylindrical gear 45 and the swing rod 46 are fixedly connected to the hinge shaft 47, thereby driving the hinge shaft 47 to rotate clockwise. Since the slide bar 19 is plugged into the avoidance groove on the swing rod 46, the swing rod 46 is plugged into the two limit grooves 18, and the two limit grooves 18 are both high at both ends and low in the middle, the scooping frame 14 begins to descend when it enters the first cleaning box 2, and the oil and grease on the surface of the cleaning liquid are scooped. When it slides to the other When the top of the partition is in contact with the top rod 50, several telescopic springs 48 are forced to contract, so that the scooping frame 14 rotates along the hinge point toward the end close to the spring, and then the scooped grease and oil are poured into the storage chamber 49 to improve the cleanliness of the cleaning liquid and facilitate multiple uses. When the liquid level sensor 54 detects that the cleaning liquid inside the first cleaning tank 2 is less than the set value inside the controller, the first water suction pump 51 is started through control, so that new cleaning liquid is injected into the first cleaning tank 2 through the suction pipe 52 and the water inlet pipe 53 to avoid the liquid level from decreasing and affecting the ultrasonic cleaning effect.

[0073] After the inner and outer walls of several bottles are sprayed with clean water inside the second cleaning box 6, the several bottles are grabbed by two clamping plates 64 and put on the chain conveyor 1 located on the right side of the base, and then the sprayed bottles are conveyed to the inside of the drying chamber 70 by the chain conveyor 1, and then the three electric heating plates 71 are started by the controller to dry them.

Claims

1. A chain-type multifunctional ultrasonic bottle washing machine, comprising a base and two chain conveyors (1), characterized in that: It also includes a cleaning mechanism, a spraying mechanism, a cleaning mechanism and a grabbing mechanism; The cleaning mechanism is arranged beside one of the chain conveyors (1), and comprises a first cleaning box (2), an ultrasonic transmitter (3), a plurality of containing components (4) and a plurality of transducers (5); the first cleaning box (2) is arranged on the top of the base, the ultrasonic transmitter (3) is fixedly arranged on the top of the base, and the containing components (4) and the plurality of transducers (5) are respectively fixedly arranged on the inner bottom and the outer bottom of the first cleaning box (2); The spray mechanism is arranged between the first cleaning box (2) and another chain conveyor (1), and comprises a second cleaning box (6), a water supply assembly (7), an angle adjustment assembly (8), a plurality of spray heads (9) and a plurality of spray pipes (10). The second cleaning box (6) is arranged between the first cleaning box (2) and another chain conveyor (1), the water supply assembly (7) is arranged on the top of the base, a U-shaped tube (11) is fixedly arranged inside the second cleaning box (6), a plurality of spray pipes (10) are connected and arranged on the outer wall of the U-shaped tube (11), a support plate (12) is fixedly arranged at the bottom of each spray pipe (10), four rotating rods (13) are rotatably arranged inside the second cleaning box (6) via four first rotating shafts, a plurality of spray heads (9) are fixedly arranged on the top of the four rotating rods (13), and the angle adjustment assembly (8) is arranged between the outer wall of the second cleaning box (6) and the four rotating rods (13); The cleaning mechanism is arranged on the outer wall of the first cleaning box (2), and comprises a scooping frame (14), a transmission assembly (15), a pushing assembly (16) and a swinging assembly (17); the swinging assembly (17) is arranged on the first cleaning box (2); the pushing assembly (16) and the transmission assembly (15) are both arranged on the second cleaning box (6); the transmission assembly (15) drives the swinging assembly (17) to operate through the pushing assembly (16); two limit grooves (18) are symmetrically arranged on the top of the first cleaning box (2); a sliding rod (19) is inserted into the inside of the two limit grooves (18); a limit plate (20) is fixedly arranged on the outer wall of the sliding rod (19); and the scooping frame (14) is hingedly arranged at the bottom of the limit plate (20); The grabbing mechanism is arranged on the top of the base, and comprises a slide plate (21), a cylinder (22), a lifting plate (23), an electric slide rail (24), a flip assembly (25) and two clamping assemblies (26). A vertical plate is fixedly arranged on the top of the base, the electric slide rail (24) is fixedly arranged on the outer wall of the vertical plate, the slide plate (21) is slidably arranged on the outer wall of the electric slide rail (24), the cylinder (22) is inserted on the slide plate (21), the lifting plate (23) is fixedly arranged on the output end thereof, the flip assembly (25) is arranged on the lifting plate (23), and the two clamping assemblies (26) are both arranged on the flip assembly (25).

2. A chain-type multifunctional ultrasonic bottle washing machine according to claim 1, characterized in that: Each containing assembly (4) comprises a circular ring (27), a clamping block (28) and a support rod (29); the support rod (29) is fixedly arranged at the inner bottom of the first cleaning box (2); a plurality of reinforcing rods (30) are fixedly arranged on the outer wall of the support rod (29); the circular ring (27) is fixedly arranged at the top ends of the plurality of reinforcing rods (30); and a plurality of clamping blocks (28) are arranged at equal intervals on the inner circle of the circular ring (27).

3. A chain-type multifunctional ultrasonic bottle washing machine according to claim 2, characterized in that: The angle adjustment assembly (8) comprises two bidirectional electric push rods (31), four first racks (32), four first cylindrical gears (33) and four push blocks (34); a slide rail is fixedly provided on the outer wall of the second cleaning box (6); the two bidirectional electric push rods (31) are fixedly provided on the top of the slide rail; the four push blocks (34) are fixedly provided on the four output ends of the two bidirectional electric push rods (31); the four first racks (32) are slidably provided on the bottom of the slide rail; each push block (34) is fixedly provided on an output end of a bidirectional electric push rod (31); each first rack (32) and an output end of each bidirectional electric push rod (31) are respectively fixedly connected to two ends of each push block (34); each first cylindrical gear (33) is fixedly provided on a first rotating shaft; and each first rack (32) is meshingly connected with a first cylindrical gear (33).

4. A chain-type multifunctional ultrasonic bottle washing machine according to claim 3, characterized in that: The transmission assembly (15) comprises a first bevel gear (35), a second bevel gear (36), a third bevel gear (37), a fourth bevel gear (38), a synchronous belt (39) and two synchronous wheels (40). The second rotating shaft, the third rotating shaft and the fourth rotating shaft are respectively provided on the outer wall of the second cleaning box (6). The first bevel gear (35) is fixedly arranged on one of the first rotating shafts close to the second rotating shaft. The second bevel gear (36) is fixedly arranged on the top of the second rotating shaft. The third bevel gear (37) and the fourth bevel gear (38) are respectively fixedly arranged on the bottom end of the second rotating shaft and one end of the third rotating shaft. The first bevel gear (35) and the second bevel gear (36) are meshedly connected. The third bevel gear (37) and the fourth bevel gear (38) are meshedly connected. The two synchronous wheels (40) are respectively fixedly arranged on the other end of the third rotating shaft and one end of the fourth rotating shaft. The synchronous belt (39) is sleeved between the two synchronous wheels (40).

5. A chain-type multifunctional ultrasonic bottle washing machine according to claim 4, characterized in that: The pushing assembly (16) comprises a first rotating disk (41), a first connecting rod (42), a sliding bar (43) and a second rack (44); the first rotating disk (41) is fixedly arranged at the other end of the fourth rotating shaft; the first connecting rod (42) is hingedly arranged on the outer wall of the first rotating disk (41); a guide rail is fixedly arranged on the outer wall of the first cleaning box (2); the second rack (44) is slidably arranged on the top of the guide rail; the sliding bar (43) is fixedly arranged at the bottom of the second rack (44); and the bottom of the sliding bar (43) is hingedly connected to an end of the first connecting rod (42) away from the first rotating disk (41).

6. A chain-type multifunctional ultrasonic bottle washing machine according to claim 5, characterized in that: The swing assembly (17) comprises a second cylindrical gear (45), a swing rod (46) and a hinge shaft (47). The hinge shaft (47) is rotatably mounted on the outer wall of the first cleaning box (2). The swing rod (46) and the second cylindrical gear (45) are both fixedly mounted on the hinge shaft (47). An end of the swing rod (46) away from the hinge shaft (47) is provided with an avoidance groove for the sliding rod (19) to slide. One end of the sliding rod (19) is plugged into the avoidance groove. A plurality of fixedly mounted components are provided between the bottom of the limit plate (20) and the top and bottom of the scooping frame (14). A plurality of telescopic springs (48) are provided, and a storage chamber (49) is provided at each end of the first cleaning box (2) through a partition. A push rod (50) is fixedly provided inside one of the storage chambers (49), and a first water suction pump (51) is fixedly provided inside the other storage chamber (49). A water suction pipe (52) and a water inlet pipe (53) are fixedly provided at the output end and the input end of the first water suction pump (51), respectively. The water inlet pipe (53) passes through one of the partitions. A liquid level sensor (54) is fixedly provided inside the first cleaning box (2).

7. A chain-type multifunctional ultrasonic bottle washing machine according to claim 6, characterized in that: The flip assembly (25) comprises a first motor (55), two third gears (56) and two fourth gears (57); the first motor (55) is fixedly mounted on the lifting plate (23); one of the third gears (56) is fixedly mounted on the output end of the first motor (55); the other third gear (56) is rotatably mounted on the lifting plate (23); the two fourth gears (57) are rotatably mounted on the outer wall of the lifting plate (23) via a hinge rod (58); the two third gears (56) and the two fourth gears (57) are meshed and connected in sequence.

8. The chain-type multifunctional ultrasonic bottle washing machine according to claim 7, characterized in that: Each clamping assembly (26) comprises a U-shaped plate (59), a support block (60), a second motor (61), a second rotating disk (62), two second connecting rods (63), two clamping plates (64) and two sliding blocks (65). The U-shaped plate (59) is fixedly arranged at one end of the hinged rod (58) away from the lifting plate (23). The support block (60) is fixedly arranged at the open end of the U-shaped plate (59). A support plate is fixedly arranged inside the U-shaped plate (59). The second motor (61) is inserted into the support plate. The second rotating disk (62) is fixedly arranged at its output end. The two sliding blocks (65) are slidably arranged on the support block (60). Each second connecting rod (63) is hingedly arranged between one end of the second rotating disk (62) and one of the sliding blocks (65). Each clamping plate (64) is fixedly arranged at one end of one of the sliding blocks (65) away from the second connecting rod (63).

9. The chain-type multifunctional ultrasonic bottle washing machine according to claim 8, characterized in that: The water supply assembly (7) comprises a water storage tank (66), a second water suction pump (67), an extraction pipe (68) and a delivery pipe (69); the water storage tank (66) and the second water suction pump (67) are both fixedly arranged on the top of the base; the extraction pipe (68) is fixedly arranged between the water storage tank (66) and the input end of the second water suction pump (67); and the delivery pipe (69) is fixedly arranged between the output end of the second water suction pump (67) and the U-shaped pipe (11).

10. A chain-type multifunctional ultrasonic bottle washing machine according to claim 9, characterized in that: A drying chamber (70) is fixedly provided on the top of one of the chain conveyors (1) close to the second cleaning box (6), and three electric heating plates (71) are fixedly provided inside the drying chamber (70).

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