Automatic air drying equipment for continuous production of air conditioners

Abstract

The invention relates to the technical field of air conditioner production equipment, in particular to automatic air-drying equipment for continuous production of air conditioners, which comprises a conveying plane, an air-drying box body and an air-drying device, the conveying plane is used for conveying a heat exchanger to be air-dried into the air-drying box body, and the air-drying device is arranged in the air-drying box body; the air drying device comprises a lifting mechanism and a lifting frame, a channel is formed in the center of the lifting frame, the periphery of the heat exchanger is comprehensively air-dried through a plurality of air knives on the inner side of the channel, the lifting frame is driven by the lifting mechanism to ascend and descend, and the lifting frame longitudinally moves outside the heat exchanger. Three-dimensional air outlet is achieved for the heat exchanger during moving, the device is more suitable for the complex surfaces of the heat exchangers of different specifications, water is prevented from remaining on the surfaces of the heat exchangers, the heat exchangers are conveyed out of the air drying box body through the conveying plane after air drying, the heat exchangers are effectively and comprehensively air-dried automatically, the production efficiency is improved, and the application range is widened.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioner production equipment, and particularly relates to an automatic air drying device for continuous production of air conditioners. Background Art

[0002] An air conditioner, that is, an air conditioner, is a device for adjusting and controlling the temperature, humidity, flow rate, etc. of the indoor air in a building or structure, and is an indispensable part of modern life. An air conditioner mainly includes an indoor unit, an outdoor unit, a controller, and several air conditioner accessories. The indoor unit and the outdoor unit contain heat exchangers, that is, the evaporator and condenser in the indoor unit and the outdoor unit. The refrigeration function of the air conditioner is realized through heat exchange, which plays a crucial role in the air conditioner system.

[0003] In the production process of air conditioners, the production process of heat exchangers includes stamping fins, processing pipelines, assembling and welding, cleaning and degreasing, air drying, etc. However, the various production processes of heat exchangers are relatively independent. With the development of technology, the processing and assembly of heat exchangers are basically completed by automated equipment. However, some post-treatment processes such as cleaning and air drying still mostly adopt the method of manual participation. Especially for air drying, after the heat exchanger is cleaned, workers need to hold an air gun to blow-dry it. Workers need to blow-dry the front, back, left, right and other surfaces of the heat exchanger, which is time-consuming and laborious, resulting in very low efficiency. Referring to the Chinese utility model patent application with the publication number "CN211041738U" and the name "An air drying device for cleaning mechanical parts", this technical solution discloses an air drying device. The device mainly includes a frame device and a transmission device. The frame device straddles the transmission device. A strong wind device is installed on the top of the frame device, and a weak wind device is arranged on one side of the strong wind device. By using the strong wind device and the weak wind device, the water liquid on the surface of the mechanical parts passing through the transmission device is blown off, reducing the burden of air drying. Although the disclosed air drying device can perform automatic air blowing on products, the strong wind device and the weak wind device are fixedly installed and the air outlet direction is single, mainly for air drying of parts. However, the heat exchanger is large in volume and complex in pipeline. Only by blowing air in a single direction on the heat exchanger through two air outlet devices, there are air outlet blind spots and it is not comprehensive enough, and it is difficult to act on all surfaces of the heat exchanger, resulting in water liquid residue and being difficult to be applicable to the air drying of heat exchangers.

[0004] Therefore, how to realize the automatic and comprehensive air drying operation of the heat exchanger is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The present invention aims to provide an automatic air drying device for continuous production of air conditioners to solve the above-mentioned problems and achieve the purpose of automatically and comprehensively air drying the heat exchanger.

[0006] To achieve the above object, the present invention provides the following technical solution: an automatic air-drying device for continuous production of air conditioners, comprising a conveying plane for conveying a heat exchanger, an air-drying box and an air-drying device; The conveying plane is arranged outside the air-drying box, and an inlet and outlet are provided on a side of the air-drying box facing the conveying plane. One end of the conveying plane is located outside the air-drying box, and the other end of the conveying plane extends to the inside of the air-drying box through the inlet and outlet. The air-drying device is arranged inside the air-drying box, and the air-drying device is located directly above the other end of the conveying plane. The air-drying device includes a lifting frame and a lifting mechanism. The lifting frame is slidably arranged inside the air-drying box. The lifting mechanism is arranged on the top of the air-drying box, and the power output end of the lifting mechanism is connected to the external transmission of the lifting frame. The lifting frame is provided with a plurality of moving mechanisms. A channel is opened at the center of the lifting frame, and the channel corresponds to the other end of the conveying plane. Wind knives are movably arranged on the inner side surface of the channel. The air outlets of the plurality of wind knives form an air outlet plane, and the air outlet plane faces the center of the channel. The lifting mechanism is used to control the lifting height of the lifting frame. The power output ends of the plurality of moving mechanisms are connected to the plurality of wind knives one by one in transmission. The moving mechanism is used to control the moving distance of the wind knives.

[0007] Furthermore, the lifting mechanism includes a lifting motor, a driving shaft and a driven shaft. The lifting motor is installed on the top of the air-drying box. The driving shaft and the driven shaft are both rotatably arranged on the top of the air-drying box, and the driving shaft is parallel to the driven shaft. The power output end of the lifting motor is transmission-connected to the driving shaft. Both ends of the outside of the driving shaft are sleeved with a transmission belt and b transmission belt. Both ends of the driving shaft are connected to both ends of the driven shaft through the b transmission belt. One end of the a transmission belt is connected to a counterweight block, and one end of the b transmission belt is connected to the counterweight block. The other end of the a transmission belt is connected to one side of the top of the lifting frame, and the other end of the b transmission belt is connected to the other side of the top of the lifting frame.

[0008] Furthermore, both ends of the active rotating shaft are sleeved with a toothed disc a and a toothed disc b, and both ends of the driven rotating shaft are sleeved with a toothed disc c corresponding to the toothed disc b, the a transmission belt is sleeved on the outside of the a toothed disc, the b transmission belt is sleeved on the outside of the b and c toothed discs, and fixed plates are provided at the corners of the lifting frame, and the outside of the counterweight block and the fixed plate are slidably connected to the inner wall of the air-drying box.

[0009] Furthermore, the interior of the air-drying box also includes a vertical guide rail and a vertical straight rail, which are both vertically installed on the inside of the air-drying box. A slider is provided on the outside of the fixed plate, and the vertical guide rail is slidably connected to the slider, and the vertical straight rail is slidably connected to the outside of the counterweight block.

[0010] Further, when four air knives are provided, the channel is integrally arranged in a rectangular structure, and the four air knives are slidably arranged on the inner periphery of the channel one by one, and four moving mechanisms are further arranged on the lifting frame body, and the four moving mechanisms are in transmission connection with the four air knives one by one.

[0011] Further, when two air knives are provided, the channel is integrally arranged in a circular structure, the two air knives are both slidably arranged on the inner wall of the channel, the air outlets of the two air knives correspond to each other, and the two air knives are integrally arranged in an arc structure.

[0012] Further, the moving mechanism includes a telescopic cylinder and a horizontal guide rail. The horizontal guide rail is arranged on the inner side surface of the channel, and a sliding member slidably connected with the horizontal guide rail is arranged outside the air knife. The telescopic cylinder is fixed on the lifting frame body, and a connecting plate member is arranged at the power output end of the telescopic cylinder, and the connecting plate member is connected with the air knife.

[0013] Further, the air drying device further includes a blower fan, and the air outlet end of the blower fan is connected to each air knife through a pipeline, and a stop valve is arranged on the pipeline.

[0014] Further, the air outlet of the air knife is flat and gradually slopes downward.

[0015] Further, pulleys and a drain port are arranged at the bottom of the air drying box body, and the drain port is communicated with the inner cavity of the air drying box body.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: By providing a conveying plane, an air drying box body, an air drying device and a moving mechanism; the heat exchanger is transported in and out of the air drying box body by using the conveying plane, the air drying box body provides an air drying space for the air drying treatment of the heat exchanger, the air drying device is provided with a lifting frame body, a channel is opened at the center of the lifting frame body, air knives are movably arranged on the inner side surfaces of the channel, the air outlets of a plurality of air knives form an air outlet plane, and the air outlet plane faces the center of the channel. The heat exchanger is located directly below the channel. The lifting frame body is driven by a lifting mechanism to slide up and down. The heat exchanger is automatically sent into the air drying box body and is positioned right opposite the channel by the conveying plane. After the heat exchanger enters the air drying box body, it is subjected to air drying treatment by the provided air drying device. After completion, the heat exchanger is transported out of the air drying box body. The plurality of air knives on the lifting frame body are used to blow air to the heat exchanger in a single or several directions to achieve comprehensive air blowing. At the same time, the lifting frame body drives longitudinal moving air sweeping by the lifting mechanism to achieve three-dimensional air blowing, which is more suitable for the complex surface of the heat exchanger, thereby preventing water liquid from remaining on the surface of the heat exchanger, effectively realizing the automatic comprehensive air drying action on the outside of the heat exchanger, and the transverse position of the air knife can also be adjusted by the moving mechanism to be suitable for heat exchangers of different shapes or specifications, improving the working efficiency and the applicable range. Description of the Drawings

[0017] Figure 1 This is the schematic diagram of the overall structure in the present invention.

[0018] Figure 2 This is the perspective view of the conveying plane in the present invention.

[0019] Figure 3 This is the schematic diagram of the upper part structure of the air-drying device in the present invention.

[0020] Figure 4 In the present invention Figure 3 Enlarged view of part A.

[0021] Figure 5 This is the schematic diagram of the lifting frame structure in the present invention.

[0022] Figure 6 In the present invention Figure 5 Enlarged view of part B.

[0023] Figure 7 This is the distribution diagram of the top structure of the air-drying box in the present invention.

[0024] Figure 8 This is the schematic diagram of the moving mechanism structure in the present invention.

[0025] Figure 9 This is the schematic diagram of the moving mechanism from another perspective in the present invention.

[0026] Figure 10 This is the schematic diagram of the internal structure of the air-drying box in the present invention.

[0027] Figure 11 This is the schematic diagram of the air inlet and outlet of the heat exchanger for air-drying in the present invention.

[0028] In the figure: 1, conveying plane; 2, air-drying box; 3, air-drying device; 4, moving mechanism; 31, lifting frame; 32, air supply fan; 33, air knife; 34, lifting motor; 50, electric controller; 101, limiting part; 111, conveying motor; 112, rotating roller; 200, vertical guide rail; 201, vertical linear guide rail; 220, drain port; 310, channel; 311, fixing plate; 312, slider; 320, stop valve; 341, driving rotating shaft; 342, driven rotating shaft; 343, counterweight; 401, horizontal guide rail; 402, telescopic cylinder; 403, sliding part; 423, connecting plate part; 3411, a gear disk; 3412, b gear disk; 3422, c gear disk; 3431, a transmission belt; 3432, b transmission belt. Detailed implementation manners

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0030] The technical solutions of the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0031] Embodiment 1: To automatically perform the automatic air-drying operation on the heat exchanger. In this embodiment, a conveying plane 1, an air-drying box body 2, and an air-drying device 3 are provided. The conveying plane 1 is arranged outside the air-drying box body 2. An inlet and outlet are provided on one side of the air-drying box body 2 facing the conveying plane 1. One end of the conveying plane 1 is located outside the air-drying box body 2, and the other end of the conveying plane 1 extends into the air-drying box body 2 through the inlet and outlet. That is, the heat exchanger to be air-dried is sent into the air-drying box body 2 through the conveying plane 1 via the inlet and outlet, and after the heat exchanger is air-dried, the air-dried heat exchanger is sent out from the inside of the air-drying box body 2 through the conveying plane 1 via the inlet and outlet. By setting one inlet and outlet, the temperature stability inside the air-drying box body 2 can be better guaranteed to prevent the internal temperature of the air-drying box body 2 from losing too fast. It should be noted that the air-drying device 3 is arranged in the air-drying box 2, and the air-drying device 3 includes a lifting frame 31 and a lifting mechanism. The lifting frame 31 is slidably arranged in the air-drying box 2, so that the lifting frame 31 is horizontally located in the air-drying box 2. A channel 310 is provided at the center of the lifting frame 31, and the channel 310 corresponds to the other end of the conveying plane 1, that is, the channel 310 corresponds to the end of the conveying plane 1 in the air-drying box 2. The lifting mechanism is arranged at the top of the air-drying box 2, and the power output end of the lifting mechanism is connected to the lifting frame 3. 1 is externally driven and connected, a plurality of moving mechanisms 4 are arranged on the lifting frame 31, and wind knives 33 are movably arranged on the inner side of the channel 310, and the air outlets of the plurality of wind knives 33 form an air outlet plane, and the air outlet plane faces the center of the channel 310, and is used to supply hot air to the heat exchanger. The lifting mechanism is used to control the lifting height of the lifting frame 31, and the power output ends of the plurality of moving mechanisms 4 are connected to the plurality of wind knives 33 one by one in transmission. The moving mechanism 4 is used to control the moving distance of the wind knives 33, and the lateral position of the wind knives 33 can be adjusted by the moving mechanism 4, so as to It is suitable for heat exchangers of different shapes or specifications. The moving mechanism 4 can also realize the staggered air discharge of two relatively arranged wind knives 33. The lifting mechanism can run forward or reverse. The lifting frame 31 can be lifted or lowered in the air drying box 2 through the forward or reverse operation of the lifting mechanism. The lifting frame 31 has a channel 310 in the middle. The channel 310 is opposite to one end of the conveying plane 1. When the lifting frame 31 is lowered to below the top surface of the heat exchanger, the channel 310 can be used for the heat exchanger to pass through. The heat exchanger sent into the air drying box 2 is at the other end of the conveying plane 1. That is, facing the channel 310, when the lifting frame 31 is descending, the heat exchanger gradually passes through the channel 310 and cooperates with the wind knife 33. The air supply fan 32 can introduce hot air and discharge air from the wind knife 33 to achieve faster drying of the heat exchanger. Several air outlets of the wind knife 33 form an air outlet plane, and the air outlet plane faces the center of the channel 310. The air outlets of the wind knife 33 form an air outlet plane, that is, the hot air blown out by the wind knife 33 is in a blade shape and faces the center of the channel 310, that is, the hot air blown out by each wind knife 33 faces the heat exchanger in the channel 310.

[0032] In this embodiment, in the initial working state, the lifting frame 31 is in the upper position inside the air-drying box body 2, that is, at this time the lifting frame 31 is higher than the inlet and outlet, so as to avoid blocking the entry of the heat exchanger at the corresponding position of the inlet and outlet. The conveying plane 1 rotates forward to send the heat exchanger to be air-dried from one end to the other end, that is, into the inside of the air-drying box body 2. Then the conveying plane 1 is paused. At this time, the air-drying device 3 starts to operate for air-drying treatment. Each air knife 33 blows out air. At the same time, the lifting mechanism drives the lifting frame 31 to slide up and down. When starting air-drying, the lifting frame 31 descends to cooperate with the air knife 33 to blow air for air-drying. When it reaches the bottom, it rises again. When the lifting frame 31 rises to the top, it descends again. At this time, the air knife 33 keeps blowing air, and sweeps back and forth like this to carry out air-drying. When the lifting frame 31 descends, the heat exchanger gradually passes through the channel 310, so that the air knife 33 on the lifting frame 31 moves longitudinally to blow air to the heat exchanger in the channel 310. After the air-drying is completed, the conveying plane 1 sends the heat exchanger out of the inside of the air-drying box body 2, realizing the automatic and comprehensive air-drying action of the heat exchanger and improving the working efficiency.

[0033] It should be noted that an electric controller 50 is also included. The electric controller 50 is commonly connected to the conveying plane 1, the moving mechanism 4 and the air-drying device 3. The electric controller 50 is the central control of the electric control system. This is responsible for coordinating, controlling, transmitting information or resources to ensure the normal operation of this automatic air-drying equipment. It is specifically electrically connected to each power component, such as the conveying motor 111 of the conveying plane 1, the telescopic cylinder 402 of the moving mechanism 4, the air supply fan 32 of the air-drying device 3, the stop valve 320 and each component of the lifting mechanism, etc.

[0034] In this embodiment, it is particularly noted that pulleys are provided at the bottom of the air-drying box body 2 and a drain port 220 for discharging the liquid in the air-drying box body 2. The pulleys facilitate the movement of the air-drying box body 2. The heat exchanger is air-dried in the air-drying box body 2. After the air knife 33 blows the liquid off the surface of the heat exchanger, it falls to the bottom of the air-drying box body 2. At this time, the accumulated water is discharged through the drain port 220. Since the air supply fan 32 supplies wind energy, the air blown out by each air knife 33 is hot air, which has a drying function and can evaporate water. Therefore, some liquid will also be air-dried and discharged from the inlet and outlet or the installation reserved opening. The installation reserved opening refers to Figure 1 and 7 , that is, the opening where the lifting mechanism such as the conveyor belt is connected to the lifting frame 31 inside the air-drying box body 2.

[0035] Embodiment 2, in order to realize the automatic lifting of the lifting frame 31, and to keep the lifting frame 31 stable during the lifting process, in this embodiment: the lifting mechanism includes a lifting motor 34, a driven shaft 342, and an active shaft 341, the lifting motor 34 is installed on the top of the air-drying box 2, and the lifting motor 34 is used as the power end to drive the lifting frame 31 to move, the active shaft 341 and the driven shaft 342 are both rotatably arranged on the top of the air-drying box 2, and the active shaft 341 is parallel to the driven shaft 342, and the power output of the lifting motor 34 is The output end is connected to the driving shaft 341 in transmission connection, and both ends of the driving shaft 341 are sleeved with a transmission belt 3431 and a transmission belt 3432. The two ends of the driving shaft 341 are connected to the two ends of the driven shaft 342 through the transmission belt 3432. One end of the transmission belt 3431 is connected to the counterweight block 343, and one end of the transmission belt 3432 is connected to the counterweight block 343. The other end of the transmission belt 3431 is connected to one side of the top of the lifting frame 31, and the other end of the transmission belt 3432 is connected to the other side of the top of the lifting frame 31. In this embodiment, it should be noted that reference Figures 3 - 6, to achieve the smooth lifting of the lifting frame 31, the driving rotating shaft 341 and the driven rotating shaft 342 are arranged in parallel on both sides of the top of the air-drying box body 2. The driving rotating shaft 341 and the driven rotating shaft 342 are both rotatably connected to the air-drying box body 2 through bearings. Both ends of the driving rotating shaft 341 are sleeved with a gear disk 3411 and a gear disk 3412, and both ends of the driven rotating shaft 342 are sleeved with a gear disk 3422 corresponding to the gear disk 3412. An a transmission belt 3431 is sleeved outside the gear disk 3411, and the b transmission belt 3432 is sleeved outside the gear disk 3412 and the gear disk 3422. Fixing plates 311 are arranged at the corners of the lifting frame 31. The outer part of the counterweight 343 and the fixing plates 311 are both slidably connected to the inner wall of the air-drying box body 2. There are two counterweights 343, and the two counterweights 343 are respectively adjacent to both ends of the driving rotating shaft 341 and are both slidably connected up and down to the air-drying box body 2. There are two a transmission belts 3431 and two b transmission belts 3432, and there are four fixing plates 311. The lifting motor 34 has the functions of forward rotation and reverse rotation, and drives the lifting frame 31 to lift through its forward rotation and reverse rotation; fixing plates 311 are arranged at the corners of the lifting frame 31, and each fixing plate 311 is respectively adjacent to both ends of the driving rotating shaft 341 or the driven rotating shaft 342. The two counterweights 343 are both connected to one ends of the a transmission belt 3431 and the b transmission belt 3432. One ends of the two a transmission belts 3431 are connected to the two fixing plates 311 of the lifting frame 31 corresponding to both ends of the driving rotating shaft 341, and the a transmission belt 3431 meshes with the gear disk 3411; one ends of the two b transmission belts 3432 are connected to the other two fixing plates 311 of the lifting frame 31 corresponding to both ends of the driven rotating shaft 342, and the b transmission belt 3432 meshes with the gear disk 3412 and the gear disk 3422, so as to realize that when the lifting motor 34 rotates forward or reverses, the lifting frame 31 can be smoothly lowered or raised; when the lifting motor 34 rotates forward, it drives the driving rotating shaft 341 and the driven rotating shaft 342 to rotate forward, thereby driving the counterweight 343 to rise through the a transmission belt 3431 and the b transmission belt 3432. At the same time, since the other ends of the a transmission belt 3431 and the b transmission belt 3432 are connected to the fixing plates 311 at the corners of the lifting frame 31, the lifting frame 31 is driven to descend smoothly. When the lifting motor 34 drives the lifting frame 31 to lift, the counterweight 343 will make opposite movements; when the lifting motor 34 rotates reversely, it drives the driving rotating shaft 341 and the driven rotating shaft 342 to rotate reversely, so that the counterweight 343 connected to one ends of the a transmission belt 3431 and the b transmission belt 3432 descends, and at the same time, the lifting frame 31 connected to the other ends of the a transmission belt 3431 and the b transmission belt 3432 rises stably.

[0036] It should also be noted that the exterior of the counterweight 343 and the fixed plate 311 are slidably connected to the inner wall of the air-drying box body 2, and its specific structure is as follows: The interior of the air-drying box body 2 further includes a vertical guide rail 200 and a vertical linear guide rail 201. The vertical guide rail 200 and the vertical linear guide rail 201 are both installed vertically inside the air-drying box body 2. A slider 312 is provided on the exterior of the fixed plate 311. The vertical guide rail 200 is slidably connected to the slider 312, and the vertical linear guide rail 201 is slidably connected to the exterior of the counterweight 343. Setting four vertical guide rails 200 can more ensure the stable lifting of the lifting frame 31. At the same time, a total of four vertical guide rails 200 are provided in the air-drying box body 2, and the four vertical guide rails 200 are respectively slidably connected to the respective sliders 312. At the same time, a total of two vertical linear guide rails 201 are provided in the air-drying box body 2. The counterweight 343 is provided with a wire wheel slidably connected to the vertical linear guide rail 201, which further ensures the stability and linearity of the lifting of the lifting frame 31.

[0037] In this embodiment, it should be particularly noted that the a transmission belt 3431 or the b transmission belt 3432 can be connected to the counterweight 343 or the fixed plate 311 through a connecting member. Refer to Figure 5 、 6 , specifically, the ends of the a transmission belt 3431 or the b transmission belt 3432 are provided with jacks. Connecting members are installed on the counterweight 343 and the fixed plate 311, and the connecting members also have jacks. The two jacks are sequentially connected in series by a pin to achieve movable connection.

[0038] Embodiment 3: To perform a comprehensive air-drying operation on heat exchangers of different specifications and shapes. In this embodiment: There is a conveying plane 1, an air-drying box body 2, an air-drying device 3, and a moving mechanism 4. The heat exchanger is conveyed in and out of the air-drying box body 2 by the conveying plane 1. The air-drying box body 2 provides an air-drying space for the heat exchanger for air-drying treatment. The air-drying device 3 includes a lifting frame body 31 and a lifting mechanism. The lifting frame body 31 is driven by the lifting mechanism to slide up and down. A channel 310 is opened at the center of the lifting frame body 31. Air knives 33 are movably arranged on the inner side surfaces of the channel 310. The air outlets of several air knives 33 form an air outlet plane, and the air outlet plane faces the center of the channel 310. When the conveying plane 1 conveys the heat exchanger to be directly below the channel 310, that is, after the heat exchanger enters the air-drying box body 2, the provided air-drying device 3 performs air-drying treatment on it. The lifting mechanism drives the lifting frame body 31 to move closer to the heat exchanger. During this process, the heat exchanger passes through the channel 310. The external part of the heat exchanger is blown by several air knives 33 on the channel 310 in one or several directions to achieve comprehensive air outlet. Each air knife 33 blows off the water liquid on the heat exchanger from different directions. At the same time, the lifting frame body 31 drives longitudinal movement for sweeping air by the lifting mechanism to achieve three-dimensional air outlet, enabling the air knives 33 to longitudinally move and blow air towards the heat exchanger, which is more suitable for the complex surface of the heat exchanger, thereby preventing water liquid from remaining on the surface of the heat exchanger and effectively realizing the automatic comprehensive air-drying operation on the outside of the heat exchanger. The lateral position of the air knives 33 can also be adjusted by the moving mechanism to be suitable for heat exchangers of different shapes or specifications, effectively improving the working efficiency and the applicable range.

[0039] In this embodiment, for further supplementary description, the air knives 33 can be set to four. A moving mechanism 4 is also arranged on the lifting frame body 31, and the number of the moving mechanisms 4 is the same as that of the air knives 33. When the air knives 33 are set to four, the channel 310 can be set as a rectangular structure as a whole, and the four air knives 33 are slidably arranged one by one on the inner periphery of the channel 310. Four moving mechanisms 4 are also arranged on the lifting frame body 31, and the four moving mechanisms 4 are in one-to-one transmission connection with the four air knives 33. That is, the moving mechanism 4 is arranged at the top of the lifting frame body 31. The four air knives 33 are slidably installed on the inner periphery of the lifting frame body 31 through the four moving mechanisms 4 respectively and are pairwise corresponding. The moving mechanism 4 is used to drive the air knives 33 to make horizontal sliding movements along the side surface where they are located on the lifting frame body 31. Specifically, the 4 air knives 33 are respectively arranged at the front, rear, left, and right inside the lifting frame body 31. The air knives 33 located on the front and rear sides of the lifting frame body 31, that is, the front air knife 33 and the rear air knife 33, make left-right sliding movements through the moving mechanism 4. The air knives 33 located on the left and right sides of the lifting frame body 31, that is, the left air knife 33 and the right air knife 33, make front-back sliding movements through the moving mechanism 4. For the above description, what needs to be further refined is that the lifting frame 31 is composed of four frame plates located on the front, back, left, and right sides. Four air knives 33 are respectively arranged inside the four frame plates. That is, four air knives 33 are arranged on one lifting frame 31, and the four air knives 33 are distributed in pairs corresponding to each other. The four air knives 33 are respectively connected to the corresponding frame plates on the lifting frame 31 through the moving mechanism 4. The air knives 33 on the frame plates on the front and back sides can slide left and right driven by the moving mechanism 4, and the air knives 33 on the frame plates on the front and back sides can slide back and forth driven by the moving mechanism 4, so as to realize the individual adjustment of the horizontal positions of the air knives 33, and the air outlet range can be extended by moving the positions of the air knives 33 to cope with heat exchangers with larger volumes or incorrect placements. For example, when the width of the heat exchanger is greater than the length of the air knife 33 acting in the width direction, the air knife 33 cannot act on the entire wide surface at one time. In this case, the moving mechanism 4 can be used to horizontally move the air knife 33 to make it blow out air in segments to this surface. For example, if the left and right side areas of the heat exchanger are large and its width is greater than the widths of the corresponding two air knives 33, the air knife 33 can first be moved to the front through the moving mechanism 4, and then the lifting mechanism is used to blow air on the front parts of the left and right sides of the heat exchanger for the first round. Then, the air knife 33 is moved to the rear through the moving mechanism 4, and the lifting mechanism is used to blow air on the rear parts of the left and right sides of the heat exchanger, so that it can be applicable to large-volume heat exchangers. The moving mechanism 4 can also be used to stagger the two opposite air knives 33 to prevent the air blown out by the two from affecting each other.

[0040] It should also be supplemented that generally, each air knife 33 blows out air. While the air knife 33 blows out air, the lifting frame 31 slides up and down to air-dry the heat exchanger. To cope with the air-drying of heat exchangers of different specifications and other situations, the moving mechanism 4 can also slide left and right to adjust the positions of the air knives 33 on the front and back of the lifting frame 31, and slide back and forth to adjust the positions of the air knives 33 on the left and right of the lifting frame 31, so as to horizontally adjust the air outlet positions. For clear description, now according to the feeding direction of the conveying plane 1, the air knives 33 on the front and back sides are the front air knife 33 and the rear air knife 33, and the air knives 33 on the left and right sides are the left air knife 33 and the right air knife 33. For example, for the side of the heat exchanger corresponding to the left air knife 33 or the right air knife 33, its length is greater than the length of the left air knife 33 or the right air knife 33. At this time, the horizontal positions of the left and right air knives 33 need to be adjusted through the moving mechanism 4. In the initial state, the left air knife 33 and the right air knife 33 are at one side of the corresponding side of the heat exchanger. At this time, each air knife 33 operates, and at the same time, the lifting mechanism drives the lifting frame 31 to first sweep the heat exchanger. After completion, the telescopic cylinder 402 of the moving mechanism 4 pushes the left air knife 33 and the right air knife 33 to move horizontally to align with the other side of the corresponding side of the heat exchanger, and then the air knife 33 and the lifting mechanism are driven to operate to sweep the heat exchanger for the second time, so as to realize full air outlet for large-area heat exchangers and have a wider application range.

[0041] For this embodiment, another supplementary embodiment is described as follows. By providing two air knives 33, when there are two air knives 33, the overall channel 310 can be arranged in a circular structure. The two air knives 33 are both slidably arranged on the inner wall of the channel 310, and the air outlets of the two air knives 33 correspond to each other. The two air knives 33 as a whole can be arranged in an arc structure.

[0042] In the above description, a further extended explanation is that the number of the moving mechanisms 4 is the same as that of the air knives 33. That is, when there are two air knives 33, there are also two moving mechanisms 4. The power output ends of the two moving mechanisms 4 are respectively and drivingly connected to the two air knives 33. The channel 310 can also be arranged in a circular structure, and the two moving mechanisms 4 are both arranged on the lifting frame 31. The output ends of the two moving mechanisms 4 can also be respectively and drivingly connected to the two air knives 33, so that the air knives 33 can move on the inner side of the channel 310 to adjust the position. In the above extended explanation, a supplementary description of the moving action is as follows. Since the moving mechanism 4 includes a telescopic cylinder 402 and a horizontal guide rail 401, the horizontal guide rail 401 can be arranged in a circular structure and installed on the inner side of the channel 310. The back of the air knife 33 is fixed on the slider 403 of the horizontal guide rail 401. When the position of the air knife 33 needs to be adjusted, only by hinging the movable part of the telescopic cylinder 402 to the air knife 33, and then driving the air knife 33 to move along the horizontal guide rail 401 while the movable part of the telescopic cylinder extends, so as to change its position.

[0043] Embodiment 4, referring to Figure 8 、 9 , and in combination with Embodiment 3, to realize the adjustment of the moving distance of the air knife 33. In this embodiment, the moving mechanism 4 includes a telescopic cylinder 402 and a horizontal guide rail 401. The horizontal guide rail 401 is arranged on the inner side of the channel 310. A slider 403 slidably connected to the horizontal guide rail 401 is provided outside the air knife 33. The fixed end of the telescopic cylinder 402 is fixed on the lifting frame 31, and a connecting plate member 423 is provided at the power output end of the telescopic cylinder 402. The connecting plate member 423 is connected to the air knife 33. Therefore, the telescopic cylinder 402 can drive the air knife 33 to move through the connecting plate member 423.

[0044] It should be added that the telescopic cylinder 402 is arranged at the top of the lifting frame 31. The power output end of the telescopic cylinder 402 is connected to the connecting plate 423. The connecting plate 423 is fixed on the air knife 33. At the same time, the horizontal guide rail 401 is arranged inside the channel 310, and the back of the air knife 33 is fixed on the slider 403 of the horizontal guide rail 401, which can prevent the air knife 33 from shifting when moving horizontally and ensure that the air knife 33 moves more smoothly and stably during the movement. Taking the left air knife 33 as an example, in the initial state, the telescopic cylinder 402 of the moving mechanism 4 connected to the left air knife 33 is in a retracted state, that is, the left air knife 33 is in a forward position. If the horizontal air outlet position needs to be adjusted, only the telescopic cylinder 402 is used to make the movable part extend. When the movable part extends, it drives the left air knife 33 to move backward, thereby changing its horizontal position.

[0045] Embodiment 5. To realize the air supply action for each air knife, in this embodiment: the air drying device 3 further includes an air supply fan 32. The air supply fan 32 is respectively connected to each air knife 33 through pipelines. A stop valve 320 is arranged on the pipeline. By arranging the stop valve 320 on the pipeline and using the stop valve 320 to control the air outlet of a single, several, or all air knives 33. The stop valve 320 is an automatic stop valve 320, which is convenient for the electric controller 50 to control the air outlet of each air knife 33. The air supply fan 32 mainly provides hot air for each air knife 33, and devices such as a high-pressure fan can be used. The air outlet of the air knife 33 is flat and gradually slopes downward. Through the flat air outlet, the wind diffusion can be reduced, so that the hot air outlet is more concentrated. And it can be ensured that when the lifting mechanism drives the lifting frame 31 to descend for air drying, the liquid can be blown downward by the air outlet of the air knife 33. The bottom of the air drying box 2 is provided with pulleys and a drain port 220, and the drain port 220 is communicated with the inner cavity of the air drying box 2.

[0046] In the above description, it should be added that to ensure the smooth follow-up of the pipeline when the air knife 33 moves up and down with the lifting frame 31 and moves horizontally with the moving mechanism 4, the pipeline can adopt a ventilation hose. The ventilation hose has certain flexibility, stretchability, and bending resistance. Therefore, when the air knife 33 moves up and down, the pipeline can be stretched, and when the air knife 33 moves horizontally, the pipeline can be bent. The flexible ventilation hose can achieve the bending and stretching effects and maintain the smooth follow-up air supply function for the air knife 33.

[0047] In this embodiment, it is further described that the four air knives 33 can blow air individually, or the front and rear or left and right two air knives 33 can be combined to blow air, or the adjacent two air knives 33 can be combined to blow air. The air outlet or non-air outlet of each air knife 33 is controlled by the stop valve 320, so as to provide a variety of combination methods to cope with the complex pipeline conditions of the heat exchanger. For example, in the initial state, the lifting frame 31 is from top to bottom. When blowing air, one of the air knives 33 can blow air first, and the other air knives 33 stop blowing air. For example, the front air knife 33 near the inlet and outlet blows air, and the stop valves 320 on the pipelines connecting the remaining air knives 33 are closed to cut off the air paths of the remaining air knives 33. The lifting mechanism descends synchronously to disperse the water liquid on the top surface of the heat exchanger first; Then, all the stop valves 320 are opened to make all the air knives 33 blow air together to blow air on all the front, rear, left and right surfaces of the heat exchanger. At this time, the lifting mechanism drives the lifting frame 31 to lift and lower to disperse most of the water liquid of the heat exchanger, and it is discharged through the drain port 220. Some water liquid will also be dried and discharged from the inlet and outlet, the drain port 220 or the remaining installation reserved openings.

[0048] It is also necessary to further describe the actions. In order to perform multi-directional air blowing actions on the complex pipelines of heat exchangers of different specifications, in this embodiment, the lifting frame 31 can be driven by the lifting mechanism of the air drying device 3 to move longitudinally, and longitudinal air drying actions are performed during the movement of the lifting frame 31. And 4 air knives 33 are distributed in the channel 310 of the lifting frame 31, so that the air outlets of the 4 air knives all face the middle channel 310 and form an air outlet plane. The air knives 33 arranged on the inner side surfaces of the lifting frame 31 surround the heat exchanger in the channel 310 to perform air drying actions, so that the air acts on the surfaces of the heat exchanger. When the lifting frame 31 slides up and down, the channel 310 moves from the top of the heat exchanger to the bottom of the heat exchanger, and the moving mechanism 4 is used to drive a plurality of air knives 33 to move, so as to blow air on the front, rear, left and right surfaces of the heat exchanger from multiple angles. Moreover, the 4 air knives 33 can blow air individually, or the front and rear or left and right two air knives 33 can be combined to blow air, or the adjacent two air knives 33 can be combined to blow air. The air outlet or non-air outlet of each air knife 33 is controlled by the stop valve 320, realizing a variety of combination methods to cope with the complex pipeline conditions of the heat exchanger.

[0049] Embodiment Six. In combination with the description in Embodiment One, it should be noted that this belongs to an automatic air-drying device which is one of the production lines for continuous production of air conditioners. For this purpose, the feeding surface for connecting the upper and lower processes is described in cooperation. That is, a feeding surface is provided in this production line. One end of the conveying plane 1 outside the air-drying box body 2 is connected to the feeding surface. One end of the feeding surface is connected to the discharging end of the previous production process. To achieve the automatic air-drying function, improve the production efficiency of air conditioners, and reduce manual intervention, a conveying plane 1 is added to connect the feeding surface to transport the heat exchanger in and out of the air-drying box body 2. The lifting frame 31 is lifted to a certain height driven by the lifting mechanism to avoid blocking the entry of the heat exchanger. After the heat exchanger on the feeding surface is sent to one end of the conveying plane 1, the conveying motor 111 starts and rotates forward to send the heat exchanger to one end inside the air-drying box body 2, that is, the heat exchanger is now directly below the corresponding channel 310 in the lifting frame 31. According to the specifications or shape of the heat exchanger, the air outlet duration of the air knife 33 and the lifting of the lifting frame 31 are set. At this time, the lifting frame 31 is lifted and lowered driven by the lifting mechanism to blow air at the heat exchanger. While the air knife 33 is blowing air, the lifting frame 31 cooperates to lift and lower back and forth. After air-drying is completed, the conveying motor 111 of the conveying plane 1 rotates reversely to send the heat exchanger out to one end, and then it is sent to the next process by the feeding surface and waits for the next heat exchanger to enter one end of the conveying plane 1, thus realizing multi-directional air blowing for the heat exchanger. And driven by the lifting mechanism, the lifting frame 31 is lifted and lowered to different heights so that the air knife 33 can blow air at the heat exchanger at different heights, effectively achieving a continuous air-drying action, which is suitable for automatically and comprehensively air-drying multiple heat exchangers in sequence when continuously producing air conditioners, improving the work efficiency.

[0050] In this embodiment, it is particularly supplemented and described that a limiting member 101 is further provided at the other end of the conveying plane 1, and the limiting member 101 is located above the other end of the conveying plane 1. The limiting member 101 is mainly used to block the heat exchanger at the other end of the conveying plane 1. Under normal circumstances, the electronic controller 50 can automatically send the heat exchanger to be air-dried into the air-drying box body 2 or send the air-dried heat exchanger out of the air-drying box body 2 by setting the running time and rotation direction of the conveying motor 111. By setting the time and speed through the electronic controller 50, the heat exchanger can be sent to the air-drying box body 2. To ensure that the heat exchanger can be sent into the air-drying box body 2 more accurately and be directly opposite to the channel 310, a limiting member 101 is provided at the other end of the conveying plane 1. When the heat exchanger reaches the other end of the conveying plane 1, if it continues to move forward, it will encounter the limiting member 101, and the limiting member 101 will block the heat exchanger from continuing to move forward to ensure that the position of the heat exchanger does not shift.

[0051] The above embodiments are the preferred embodiments of the present invention. All structures similar to the present invention and equivalent changes made shall fall within the protection scope of the present invention.

Claims

1. An automatic air drying device for continuous production of air conditioners, characterized in that: It includes a conveying plane for conveying the heat exchanger, an air drying box and an air drying device; The conveying plane is arranged outside the air-drying box, and an inlet and outlet are provided on a side of the air-drying box facing the conveying plane. One end of the conveying plane is located outside the air-drying box, and the other end of the conveying plane extends to the inside of the air-drying box through the inlet and outlet. The air-drying device is arranged inside the air-drying box, and the air-drying device is located directly above the other end of the conveying plane. The air-drying device includes a lifting frame and a lifting mechanism. The lifting frame is slidably arranged inside the air-drying box. The lifting mechanism is arranged on the top of the air-drying box, and the power output end of the lifting mechanism is connected to the external transmission of the lifting frame. The lifting frame is provided with a plurality of moving mechanisms. A channel is opened at the center of the lifting frame, and the channel corresponds to the other end of the conveying plane. Wind knives are movably arranged on the inner side surface of the channel. The air outlets of the plurality of wind knives form an air outlet plane, and the air outlet plane faces the center of the channel. The lifting mechanism is used to control the lifting height of the lifting frame. The power output ends of the plurality of moving mechanisms are connected to the plurality of wind knives one by one in transmission. The moving mechanism is used to control the moving distance of the wind knives.

2. The automatic air-drying device for continuous production of air conditioners according to claim 1, characterized in that: The lifting mechanism includes a lifting motor, a driving shaft and a driven shaft. The lifting motor is installed on the top of the air-drying box. The driving shaft and the driven shaft are both rotatably arranged on the top of the air-drying box, and the driving shaft is parallel to the driven shaft. The power output end of the lifting motor is transmission-connected to the driving shaft. Both ends of the driving shaft are sleeved with a transmission belt and b transmission belt. Both ends of the driving shaft are connected to both ends of the driven shaft through the b transmission belt. One end of the a transmission belt is connected to a counterweight block, and one end of the b transmission belt is connected to the counterweight block. The other end of the a transmission belt is connected to one side of the top of the lifting frame, and the other end of the b transmission belt is connected to the other side of the top of the lifting frame.

3. The automatic air-drying device for continuous production of air conditioners according to claim 2, characterized in that: Both ends of the active rotating shaft are sleeved with a toothed disc a and a toothed disc b, and both ends of the driven rotating shaft are sleeved with a toothed disc c corresponding to the toothed disc b, the a transmission belt is sleeved on the outside of the a toothed disc, the b transmission belt is sleeved on the outside of the b and c toothed discs, and fixed plates are provided at the corners of the lifting frame, and the outside of the counterweight block and the fixed plate are slidably connected to the inner wall of the air-drying box.

4. The automatic air drying equipment for continuous production of air conditioners according to claim 3, characterized in that: The interior of the air-drying box also includes a vertical guide rail and a vertical linear rail, which are both vertically installed on the inside of the air-drying box. A slider is provided on the outside of the fixed plate, and the vertical guide rail is slidably connected to the slider, and the vertical linear rail is slidably connected to the outside of the counterweight block.

5. The automatic air-drying equipment for continuous production of air conditioners according to claim 1, characterized in that: When there are four wind knives, the channel is arranged in a rectangular structure as a whole, and the four wind knives are slidably arranged around the inner side of the channel one by one, and four moving mechanisms are also arranged on the lifting frame, and the four moving mechanisms are connected to the four wind knives one by one in transmission.

6. The automatic air drying equipment for continuous production of air conditioners according to claim 1, characterized in that: When two wind knives are provided, the channel is arranged in a circular structure as a whole, the two wind knives are both slidably arranged on the inner wall of the channel, the air outlets of the two wind knives correspond to each other, and the two wind knives are arranged in an arc structure as a whole.

7. The automatic air-drying device for continuous production of air conditioners according to claim 5, characterized in that: The moving mechanism includes a telescopic cylinder and a transverse guide rail, the transverse guide rail is arranged on the inner side of the channel, and a sliding piece slidably connected to the transverse guide rail is arranged on the outside of the wind knife, the telescopic cylinder is fixed on the lifting frame, and a connecting plate is arranged at the power output end of the telescopic cylinder, and the connecting plate is connected to the wind knife.

8. The automatic air-drying equipment for continuous production of air conditioners according to claim 1, characterized in that: The air drying device also includes an air supply fan, and the air outlet end of the air supply fan is connected to each of the air knives through a pipeline, and a stop valve is arranged on the pipeline.

9. The automatic air-drying equipment for continuous production of air conditioners according to claim 1, characterized in that: The air outlet of the wind knife is flat and gradually tilted downward.

10. The automatic air-drying equipment for continuous production of air conditioners according to claim 1, characterized in that: A pulley and a drain port are provided at the bottom of the air-drying box, and the drain port is communicated with the inner cavity of the air-drying box.

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