A sectional vacuum drying apparatus

Abstract

The application discloses a sectional vacuum drying equipment, and relates to the technical field of drying equipment.The equipment comprises a conveying line, a heat pump unit, a cleaning unit, a vacuum drying unit and an air supply unit.The conveying unit continuously conveys parts to be cleaned, and the parts are sequentially subjected to full-enclosure cleaning by a high-pressure cleaning module of the cleaning unit, and a shielding door is arranged to be independently opened and closed to reduce external pollution.The vacuum drying unit is provided with a vacuum module, a cover door and heating fins of the heat pump unit, and is used for short-time vacuum heating of the parts, rapid evaporation and suction of water on the surface of the parts, one-time drying, connection of an air supply end of the vacuum module with the air supply unit, cooling and drying of cold air for the parts by refrigeration fins of the heat pump unit, secondary drying of the parts and reduction of the temperature of the parts.The application realizes integrated and continuous operation of cleaning, vacuum drying and cold air drying, improves the efficiency and uniformity of part drying, reduces the overall energy consumption of the cleaning and drying links, and is suitable for batch production of automobile parts.

Description

Technical Field

[0001] This invention relates to the field of drying equipment technology, and in particular to a segmented vacuum drying equipment. Background Technology

[0002] In the manufacturing process of automotive parts, the processing of parts often uses subtractive machining processes (such as milling, turning, grinding, etc.), which can result in residual machining debris on the surface or inside the cavity of the parts. To ensure product quality, ultrasonic cleaning is required to remove the debris, followed by washing and drying.

[0003] However, in existing technologies, the washing and drying processes are usually completed by separate equipment, which presents the following technical bottlenecks:

[0004] (1) Equipment separation leads to low efficiency: In traditional processes, parts need to pass through washing equipment and drying equipment in sequence, resulting in frequent process interruptions, time-consuming equipment switching, and the need for personnel to move parts in between; especially in the high-volume scenario of automotive parts, the processing speed of independent equipment is difficult to match the production rhythm, which can easily cause accumulation between processes and affect the overall production efficiency.

[0005] (2) Limitations of drying technology

[0006] Hot air drying: high energy consumption, poor drying uniformity, and some areas may retain moisture.

[0007] Vacuum drying: Although it can reduce drying temperature and reduce the risk of oxidation, existing vacuum drying equipment has a complex structure, high maintenance costs, and mostly adopts a single chamber design, which cannot achieve continuous processing and is difficult to meet the needs of large-scale production.

[0008] Ultrasonic-assisted drying: Although it can accelerate the removal of moisture, the equipment must be physically isolated from the cleaning process, otherwise secondary pollution may occur due to residual cleaning solution.

[0009] (3) The contradiction between cleanliness and dryness

[0010] If the cleaning solution is not completely removed during the cleaning process, the residual chemicals may crystallize or corrode during the drying process, affecting the quality of the parts and making them prone to wear, corrosion and other defects during use. Furthermore, existing equipment lacks an integrated design, and there are blind spots in the connection between the cleaning and drying processes, which can easily lead to cross-contamination or incomplete drying.

[0011] (4) Energy consumption problem

[0012] Traditional drying equipment (such as hot air drying) has high energy consumption and lacks a heat recovery mechanism, which is not in line with the trend of green manufacturing. Although some vacuum drying equipment can reduce energy consumption, the condensate vapor is not completely treated, which may lead to resource waste.

[0013] Problems with existing technology:

[0014] The equipment separates the washing and drying processes, resulting in low equipment switching efficiency and difficulty in meeting high-volume demands. Existing drying technologies (such as hot air and vacuum drying) have significant deficiencies in terms of energy consumption, processing speed, and uniformity. The lack of integrated design makes it difficult to optimize cleanliness and dryness in a coordinated manner, and there is a risk of secondary pollution.

[0015] Therefore, there is an urgent need to develop a segmented vacuum drying equipment that integrates washing and drying functions, so as to achieve efficient and continuous processing through process optimization and technological innovation, while taking into account energy conservation, environmental protection and quality control requirements.

[0016] In summary, the existing technology has at least the following technical problems:

[0017] Existing parts cleaning and drying equipment suffers from technical problems such as low cleaning and drying efficiency, uneven drying, and high energy consumption. Summary of the Invention

[0018] The purpose of this invention is to provide a segmented vacuum drying device to solve the technical problems of low cleaning and drying efficiency, uneven drying, and high energy consumption in existing parts cleaning and drying equipment.

[0019] The preferred technical solutions among the many technical solutions provided by this invention can produce a variety of technical effects, which are described in detail below.

[0020] To address the aforementioned technical problems, the present invention provides the following technical solution:

[0021] This invention provides a segmented vacuum drying device, including a conveyor line for conveying parts to be cleaned and a heat pump unit; and a cleaning unit, a vacuum drying unit, and an air supply unit arranged sequentially along the direction of conveying the parts on the conveyor line; the cleaning unit has independently openable and closable shielding doors at both ends, and a high-pressure cleaning module that fully surrounds the parts in the middle; the vacuum drying unit has a vacuum module and a cover that can be sealed or opened; the vacuum module has a first suction end, a second suction end, and an air supply end, and the gas drawn in by the first suction end and the second suction end is collected and sent out by the air supply end; the first suction end draws in air from the open space; The second suction end is connected to the hood, and the heating fins of the heat pump unit are provided within the area covered by the hood; the air supply unit is connected to the air supply end; the cooling fins of the heat pump unit are located in the vacuum module, used to cool and dry the gas collected at the air supply end, and to transfer heat to the heating fins; the cleaning unit isolates the parts for high-pressure cleaning to remove residual debris and cleaning liquid from the surface; the vacuum drying unit performs short-term vacuum heating on the parts to quickly evaporate and absorb the surface moisture of the parts for primary drying; the air supply unit blows dry cold air onto the parts to quickly reduce the temperature of the parts for secondary drying.

[0022] In one embodiment, the system further includes a production line frame on which the conveyor line is mounted; the conveyor line employs a powered roller conveyor structure.

[0023] In one embodiment, the shielding door includes a first gate and a second gate; the first gate and the second gate are arranged sequentially on the conveyor line along the direction of the conveying parts, with the first gate arranged in front and the second gate arranged behind; the second gate is arranged adjacent to the shielding door; the high-pressure cleaning module is arranged in a manner that allows it to move between the first gate and the second gate.

[0024] In one embodiment, the cleaning unit further includes a first drive cylinder, a first guide rod, a second drive cylinder, and a second guide rod; the first drive cylinder, the first guide rod, the second drive cylinder, the second guide rod, the first gate, and the second gate are all mounted above the conveyor line; the first drive cylinder and the first guide rod are connected to the top of the first gate, and the first drive cylinder drives the first gate to move up and down along the guide of the first guide rod toward the conveyor line, for opening or closing the conveyor line; the second drive cylinder and the second guide rod are connected to the top of the second gate. The second drive cylinder drives the second gate to move up and down along the guide of the second guide rod toward the conveyor line, for opening or closing the conveyor line; the high-pressure cleaning module includes a translation cylinder, a translation guide rail and a square cleaning tube ring; the translation cylinder, the translation guide rail and the cleaning tube ring are all mounted above the conveyor line, and the cleaning tube ring is sleeved outside the conveyor line; the slide of the translation cylinder is connected to the mounting side of the cleaning tube ring and the slider of the translation guide rail; on the inner side of the cleaning tube ring facing the conveyor line, multiple high-pressure nozzles are evenly arranged in the up, down and left and right directions.

[0025] In one embodiment, the vacuum module is mounted on the ground; the cover includes an upper cover and a lower cover; the upper cover is mounted above the conveyor line in a liftable manner; the lower cover is installed below the conveyor line and surrounds the lower side of the conveyor line; the lower cover is connected to the second suction end of the vacuum module; the heating fins are located on opposite sides of the conveyor line in the conveying direction and are located between the side of the conveyor line and the lower cover.

[0026] In one embodiment, a sealing frame is provided between the upper cover and the lower cover; in a plane, the sealing frame surrounds the portion of the conveyor line located in the vacuum drying unit; in the vertical direction, the sealing frame is positioned below the surface of the conveyor line rollers that contact the parts; the lower cover is sealed to the sealing frame and remains stationary; when the parts conveyed by the conveyor line reach the area covered by the lower cover, the upper cover descends to surround the upper side of the conveyor line and engages with the sealing frame to form a seal.

[0027] In one embodiment, the vacuum drying unit further includes a third drive cylinder and a third guide rod, both of which are mounted above the conveyor line. The third drive cylinder and the third guide rod are connected to the top of the upper cover. The third drive cylinder drives the upper cover to move up and down along the guide of the third guide rod toward the sealing frame, for opening or sealing the parts conveyed to the vacuum drying unit by the conveyor line.

[0028] In one embodiment, the air supply unit includes a cooling shroud and a cold air duct. The cooling shroud spans the conveyor line, and the cold air duct connects the cooling shroud and the air supply end. The cooling shroud has a cooling channel along the direction of the conveyor line that transports parts. Air supply plates are provided on both sides of the cooling channel, and a guide plate is provided at the top of the cooling channel. The guide plate is inclined from the center to the two sides of the air supply plates. The top of the cooling shroud has an air duct opening that communicates with the interior of the cooling channel, and the air duct opening is connected to the cold air duct.

[0029] In one embodiment, the vacuum module is provided with a first flow channel, a second flow channel, and a converging flow channel; the converging flow channel is provided with a converging end and an independent end; one end of the first flow channel is connected to the first suction end, one end of the second flow channel is connected to the second suction end, the other ends of the first flow channel and the second flow channel are connected to the converging end of the converging flow channel, and the independent end of the converging flow channel is connected to the air supply end; the heat pump unit is provided with multiple cooling fins; multiple cooling chambers are provided on the converging flow channel, and each of the multiple cooling chambers is provided with the cooling fins.

[0030] In one embodiment, the vacuum module further includes a drain pipe; multiple drain outlets are provided on the collecting channel, the drain outlets are located at the bottom of the cooling chamber, and the multiple drain outlets are connected in parallel to the drain pipe for draining condensate that has slid off the cooling fins.

[0031] The beneficial effects of this invention are as follows:

[0032] The technical solution provided by this invention is a segmented vacuum drying equipment. It proposes an integrated solution to address the problems of low cleaning and drying efficiency, uneven drying, and high energy consumption in existing parts cleaning and drying equipment. The equipment mainly consists of a conveyor line for transporting parts to be cleaned, a heat pump unit for transporting heat and assisting drying, and a cleaning unit, a vacuum drying unit, and an air supply unit arranged in sequence along the direction of transporting parts on the conveyor line.

[0033] Specifically, the conveyor line continuously feeds parts into the cleaning unit, the vacuum drying unit, and the air supply unit in sequence. The cleaning unit isolates the parts for high-pressure cleaning to remove residual debris and cleaning liquid from the surface. The vacuum drying unit performs short-term vacuum heating on the parts to quickly evaporate and absorb the surface moisture for primary drying. The air supply unit blows dry cold air onto the parts to quickly lower the part temperature and perform secondary drying.

[0034] The segmented vacuum drying equipment is particularly suitable for the efficient removal and drying of surface moisture from automotive parts after cleaning, and has the following advantages:

[0035] (1) Improve cleaning and drying efficiency

[0036] The cleaning unit, vacuum drying unit, and air supply unit are connected in series via the conveyor line that can continuously transport parts, realizing integrated cleaning and drying operations without the need to transfer parts between different devices, thus greatly improving production efficiency. In the cleaning unit, the high-pressure cleaning module performs full-encirclement cleaning of the parts, ensuring that debris and cleaning fluid are completely removed, reducing the burden on the subsequent drying process. In the vacuum drying unit and the air supply unit, the combination of short-time vacuum heating drying and cold air cooling secondary drying makes the parts dry faster, more evenly, and more thoroughly. Furthermore, through the segmented cleaning of the cleaning unit, vacuum drying unit, and air supply unit, the overall cycle time of the cleaning production line can meet the part cleaning needs of large-scale parts production.

[0037] (2) The vacuum drying unit and the air supply unit perform secondary drying of the parts, improving the uniformity of drying.

[0038] The vacuum drying unit uses the vacuum module and the heating fins of the heat pump unit to deliver the parts to the conveyor line under the cover. The parts are then sealed by the cover and heated evenly inside. The vacuum environment rapidly increases the temperature, and through the combined effect of air pressure and temperature, the moisture on the surface of the parts is quickly vaporized, thus evaporating the moisture. The vapor is then quickly removed through the suction end of the vacuum module to prevent the moisture on the surface of the parts from re-adhering and condensing.

[0039] The air supply unit uses cold air cooled and dehydrated by the cooling fins of the heat pump unit to blow on the parts entering the air supply unit. This reduces the temperature of the parts and performs secondary drying, effectively removing any trace amounts of moisture and humidity that may remain. This ensures that the parts are thoroughly and evenly dried, without affecting subsequent assembly or painting processes.

[0040] (3) Reduce energy consumption

[0041] The heat pump unit accelerates the drying of parts and reduces energy consumption. Traditional drying equipment usually uses hot air circulation, which easily leads to energy waste. This equipment uses vacuum drying + cold air drying, which can not only speed up the drying process but also reduce heat loss.

[0042] The cooling fins are used to condense and remove moisture from the mixture of air drawn in through the first and second intake ends and steam from the hood, producing dry gas with extremely low humidity and low temperature for secondary drying of parts entering the air supply unit. Simultaneously, because the mixture contains air from the open space and steam from the hood, it possesses higher thermal energy, allowing the cooling fins to transfer more heat to the heating fins. Through the integration of the heat pump unit, the vacuum drying unit, and the air supply unit, along with heat recovery and drying synergy, energy efficiency can be greatly improved, significantly reducing energy consumption compared to traditional heating methods.

[0043] (4) Reduce component accumulation and match production rhythm

[0044] The segmented vacuum drying equipment transports parts via the conveyor line, and through the coordinated rhythmic actions of the cleaning unit, the vacuum drying unit, and the air supply unit, it implements a continuous conveying, continuous cleaning, and continuous drying mode for the parts. This eliminates the need for manual handling, reduces the dwell time of parts between different processes, avoids accumulation, and improves the overall smoothness of the production line.

[0045] In summary, the segmented vacuum drying equipment of this invention integrates cleaning, vacuum heating and drying, and air cooling and drying functions through a segmented vacuum drying structure. It solves the technical problems of low cleaning and drying efficiency, uneven drying, and high energy consumption in existing parts cleaning and drying equipment. Furthermore, by continuously conveying parts for cleaning and drying operations, the high-speed continuous operation mode of the segmented vacuum drying equipment is suitable for the efficient cleaning and drying of large batches of automotive parts. Attached Figure Description

[0046] To more clearly illustrate the technical solution of the present invention, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0047] Figure 1 This is a schematic diagram of the overall isometric structure of the segmented vacuum drying equipment of the present invention;

[0048] Figure 2 This is a top view schematic diagram of the segmented vacuum drying equipment of the present invention;

[0049] Figure 3 This is an isometric structural diagram of the segmented vacuum drying equipment of the present invention;

[0050] Figure 4This is a partial enlarged isometric view of the cleaning unit and vacuum drying unit of the present invention;

[0051] Figure 5 This is an isometric structural schematic diagram of the cooling shroud of the present invention;

[0052] Figure 6 This is a schematic diagram of the structure of the first flow channel, the second flow channel, and the converging flow channel of the vacuum module of the present invention.

[0053] The accompanying figure is labeled as follows:

[0054] 1. Conveyor line;

[0055] 2. Heat pump unit; 21. Heating fins; 22. Cooling fins; 23. Condensate tank; 24. Compressor unit;

[0056] 3. Cleaning unit; 31. Shielding door; 311. First gate; 312. First drive cylinder; 313. First guide rod; 314. Second gate; 315. Second drive cylinder; 316. Second guide rod; 32. High-pressure cleaning module; 321. Translation cylinder; 322. Translation guide rail; 33. Cleaning tube coil; 331. High-pressure nozzle;

[0057] 4. Vacuum drying unit;

[0058] 5. Vacuum module; 51. First suction end; 52. Second suction end; 53. Air supply end; 54. First flow channel; 55. Second flow channel; 56. Collecting flow channel; 561. Collecting end; 562. Independent end; 563. Cooling chamber; 564. Drain outlet; 57. Drain pipe;

[0059] 6. Door; 61. Upper cover; 62. Lower cover; 63. Third drive cylinder; 64. Third guide rod;

[0060] 7. Air supply unit; 71. Cooling cover; 711. Cooling channel; 712. Air supply plate; 713. Deflector plate; 714. Air duct outlet; 72. Cold air duct;

[0061] 8. Production line racks;

[0062] 9. Parts;

[0063] 10. Control cabinet. Detailed Implementation

[0064] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0065] In view of this, a segmented vacuum drying equipment is provided in the specific embodiment. The equipment includes a conveyor line, a heat pump unit, a cleaning unit, a vacuum drying unit, and an air supply unit. The conveyor unit continuously conveys the parts to be cleaned, which are then cleaned in sequence by a high-pressure cleaning module in the cleaning unit. The cleaning unit is equipped with an independently opening and closing shielding door to reduce external contamination. The vacuum drying unit uses the vacuum module, the door, and the heating fins of the heat pump unit to perform short-term vacuum heating on the parts, quickly evaporating and absorbing the surface moisture of the parts for primary drying. The air supply unit is connected to the air supply end of the vacuum module and uses the cooling fins of the heat pump unit to cool and dry the parts with cold air for secondary drying and to lower the temperature of the parts. This achieves integrated continuous operation of cleaning, vacuum drying, and cold air drying, improving the efficiency and uniformity of parts drying, and reducing the overall energy consumption of the cleaning and drying process. It is suitable for mass production of automotive parts and effectively solves the technical problems of low cleaning and drying efficiency, uneven drying, and high energy consumption in existing parts cleaning and drying equipment.

[0066] Figure 1 This is a schematic diagram of the overall isometric structure of the segmented vacuum drying equipment of the present invention; Figure 2 This is a top view schematic diagram of the segmented vacuum drying equipment of the present invention; Figure 3 This is an isometric structural diagram of the segmented vacuum drying equipment of the present invention.

[0067] The first implementation of a segmented vacuum drying equipment, for example Figures 1 to 3 As shown, the system includes a conveyor line 1 for transporting parts 9 to be cleaned and a heat pump unit 2; and along the direction of transporting parts 9 on the conveyor line 1, a cleaning unit 3, a vacuum drying unit 4, and an air supply unit 7 are arranged in sequence; the cleaning unit 3 has independently openable and closable shielding doors 31 at both the front and rear, and a high-pressure cleaning module 32 that fully surrounds the parts 9 in the middle; the vacuum drying unit 4 has a vacuum module 5 and a cover door 6 that can be sealed or opened; the vacuum module 5 has a first suction end 51, a second suction end 52, and an air supply end 53, and the gas sucked by the first suction end 51 and the second suction end 52 is collected at the air supply end 53 and sent out; the first suction end 51 sucks in air from the open space; The second suction end 52 is connected to the cover 6, and the heating fins 21 of the heat pump unit 2 are provided within the area covered by the cover 6; the air supply unit 7 is connected to the air supply end 53; the cooling fins 22 of the heat pump unit 2 are located in the vacuum module 5, used to cool and dry the gas collected by the air supply end 53, and transfer heat to the heating fins 21; the cleaning unit 3 isolates the part 9 for high-pressure cleaning to remove residual debris and cleaning liquid from the surface; the vacuum drying unit 4 performs short-term vacuum heating on the part 9 to quickly evaporate and absorb the surface moisture of the part 9 for primary drying; the air supply unit 7 blows dry cold air onto the part 9 to quickly reduce the temperature of the part 9 for secondary drying.

[0068] Regarding the arrangement and specific conveying structure of the aforementioned conveyor line 1, this embodiment is as follows: Figure 1 As shown, it also includes a production line frame 8, and a conveyor line 1 is installed on the production line frame 8; the conveyor line 1 adopts a powered roller conveyor structure.

[0069] In order to enable the heat pump unit 2 to have the function of rapidly heating and cooling heat transfer, this implementation is as follows: Figure 1 and Figure 2 As shown, the heat pump unit 2 is also equipped with a refrigerant tank 23 containing at least 1 cubic meter of refrigerant and an independently configured compressor unit 24.

[0070] The segmented vacuum drying equipment is also equipped with a control cabinet 10, which is electrically connected to the conveyor line 1, heat pump unit 2, cleaning unit 3, vacuum drying unit 4 and air supply unit 7. The control cabinet 10 uses a PLC (Programmable Logic Controller) module and its built-in program to coordinate the control of the conveyor line 1, heat pump unit 2, cleaning unit 3, vacuum drying unit 4 and air supply unit 7.

[0071] To address the problems of low cleaning and drying efficiency, uneven drying, and high energy consumption in existing parts cleaning and drying equipment, an integrated solution is proposed: a segmented vacuum drying equipment.

[0072] Specifically, the parts 9 are continuously fed into the cleaning unit 3, vacuum drying unit 4 and air supply unit 7 via the conveyor line 1. The parts 9 enter in sequence. The cleaning unit 3 isolates the parts 9 and performs high-pressure cleaning to remove residual debris and cleaning liquid from the surface. The vacuum drying unit 4 performs short-term vacuum heating on the parts 9 to quickly evaporate and absorb the surface moisture of the parts 9 for primary drying. The air supply unit 7 blows dry cold air onto the parts 9 to quickly reduce the temperature of the parts 9 for secondary drying.

[0073] Therefore, the segmented vacuum drying equipment is particularly suitable for the efficient removal and drying of surface moisture from automotive parts after cleaning, and has the following advantages:

[0074] The segmented vacuum drying equipment improves the efficiency of the entire process of cleaning and drying parts 9: The cleaning unit 3, vacuum drying unit 4, and air supply unit 7 are connected in series via a conveyor line 1 that can continuously transport parts 9, achieving integrated cleaning and drying operations without the need to transfer parts 9 between different devices, significantly improving production efficiency. In the cleaning unit 3, the high-pressure cleaning module 32 performs a full-encirclement cleaning of parts 9, ensuring thorough removal of debris and cleaning fluid, reducing the burden on subsequent drying stages. In the vacuum drying unit 4 and air supply unit 7, the combination of short-time vacuum heating drying and secondary drying with cold air cooling makes the drying of parts 9 faster, more uniform, and more thorough. Furthermore, the segmented cleaning by the cleaning unit 3, vacuum drying unit 4, and air supply unit 7 allows the overall cycle time of the cleaning production line to meet the cleaning needs of parts 9 in large-scale production of spare parts.

[0075] Vacuum drying unit 4 and air supply unit 7 perform secondary drying of part 9 to improve drying uniformity: Vacuum drying unit 4 delivers part 9 to the door 6 through the heating fins 21 of vacuum module 5 and heat pump unit 2 via conveyor line 1. Part 9 is then sealed by door 6 and heated uniformly inside door 6. The vacuum environment rapidly increases the temperature, and through the combined effect of air pressure and temperature, the moisture on the surface of part 9 is rapidly vaporized, thereby evaporating the moisture on the surface of part 9. The vapor is then quickly removed through the suction end of vacuum module 5 to prevent moisture from re-adhering and condensing on the surface of part 9.

[0076] The air supply unit 7 uses cold air cooled and dehydrated by the cooling fins 22 of the heat pump unit 2 to blow on the parts 9 entering the air supply unit 7. This reduces the temperature of the parts 9 and performs secondary drying, effectively removing any trace amounts of moisture and humidity that may remain, ensuring that the parts 9 are thoroughly and evenly dried without affecting subsequent assembly or painting processes.

[0077] Reduced energy consumption: The heat pump unit 2 accelerates the drying of parts 9 and reduces energy consumption. Traditional drying equipment usually uses hot air circulation, which easily leads to energy waste. However, this equipment uses vacuum drying + cold air drying, which can not only speed up the drying process but also reduce heat loss.

[0078] The cooling fins 22 are used to condense and remove moisture from the mixture of air in the open space and steam in the hood 6 drawn in through the first suction end 51 and the second suction end 52, producing dry gas with extremely low humidity and low temperature, which is used to perform secondary drying on the parts 9 entering the air supply unit 7. At the same time, since the mixture contains air in the open space and steam in the hood 6, it has higher thermal energy, which allows the cooling fins 22 to transfer more heat to the heating fins 21. Through the interlocking of the heat pump unit 2 with the vacuum drying unit 4 and the air supply unit 7, as well as the recovery and utilization of heat and the synergistic drying, the energy utilization rate can be greatly improved, and the energy consumption can be significantly reduced compared with the traditional heating method.

[0079] Reduce component accumulation, match production rhythm, and improve the turnover efficiency of parts 9 in the production workshop: The segmented vacuum drying equipment transports parts 9 through conveyor line 1, and through the coordinated rhythm of cleaning unit 3, vacuum drying unit 4 and air supply unit 7, it implements a continuous conveying, continuous cleaning and continuous drying mode for parts 9. No manual handling is required, reducing the dwell time of parts 9 between different processes, avoiding accumulation, and improving the smoothness of the overall production line.

[0080] The segmented vacuum drying equipment integrates cleaning, vacuum heating and drying, and air cooling and drying functions through a segmented vacuum drying structure. It solves the technical problems of low cleaning and drying efficiency, uneven drying, and high energy consumption in existing parts cleaning and drying equipment. It also performs cleaning and drying operations by continuously conveying parts. The high-speed and continuous operation mode of the segmented vacuum drying equipment is suitable for the efficient cleaning and drying of large batches of automotive parts.

[0081] As one alternative implementation method

[0082] Figure 1 This is a schematic diagram of the overall isometric structure of the segmented vacuum drying equipment of the present invention; Figure 2 This is a top view schematic diagram of the segmented vacuum drying equipment of the present invention; Figure 3 This is an isometric structural diagram of the segmented vacuum drying equipment of the present invention; Figure 4 This is a partial enlarged isometric view of the cleaning unit and vacuum drying unit of the present invention; Figure 5 This is an isometric structural diagram of the cooling cover of the present invention.

[0083] Regarding the specific structure of the cleaning unit 3 described above, this embodiment is as follows: Figure 3 and Figure 4 As shown, the shielding door 31 includes a first gate 311 and a second gate 314; along the direction of the conveying component 9, the first gate 311 and the second gate 314 are arranged sequentially on the conveying line 1, with the first gate 311 arranged in front and the second gate 314 arranged behind; the second gate 314 is arranged adjacent to the cover door 6; the high-pressure cleaning module 32 is arranged in a way that it can move between the first gate 311 and the second gate 314.

[0084] Specifically, the cleaning unit 3 also includes a first drive cylinder 312, a first guide rod 313, a second drive cylinder 315, and a second guide rod 316; the first drive cylinder 312, the first guide rod 313, the second drive cylinder 315, the second guide rod 316, the first gate 311, and the second gate 314 are all mounted above the conveyor line 1.

[0085] Regarding the specific opening and closing structure of the first gate 311 and the method of blocking the part 9 on the conveyor line 1, this implementation is as follows: Figures 1 to 4As shown, the first drive cylinder 312 and the first guide rod 313 are connected to the top of the first gate 311. The first drive cylinder 312 drives the first gate 311 to move up and down along the guide of the first guide rod 313 toward the conveyor line 1, for opening or closing the conveyor line 1.

[0086] Regarding the specific opening and closing structure of the second gate 314 and the method of blocking the part 9 on the conveyor line 1, this implementation is as follows: Figures 1 to 4 As shown, the second drive cylinder 315 and the second guide rod 316 are connected to the top end of the second gate 314. The second drive cylinder 315 drives the second gate 314 to move up and down along the guide of the second guide rod 316 toward the conveyor line 1, for opening or closing the conveyor line 1.

[0087] Regarding the specific structure and cleaning method of the high-pressure cleaning module 32 cleaning component 9, this embodiment is as follows: Figures 1 to 4 As shown, the high-pressure cleaning module 32 includes a translation cylinder 321, a translation guide rail 322, and a square cleaning tube ring 33. The translation cylinder 321, the translation guide rail 322, and the cleaning tube ring 33 are all mounted above the conveyor line 1, and the cleaning tube ring 33 is fitted outside the conveyor line 1. The slide of the translation cylinder 321 is connected to the mounting side of the cleaning tube ring 33 and the slider of the translation guide rail 322. On the inner side of the cleaning tube ring 33 facing the conveyor line 1, a plurality of high-pressure nozzles 331 are evenly arranged in the up, down, left, and right directions.

[0088] When applied, the translation cylinder 321, in conjunction with the translation guide rail 322, drives the cleaning coil 33 to translate along the guide rail 322 between the first gate 311 and the second gate 314. This is used to clean the adjacent parts by translating back and forth after the parts 9 flow into the first gate 311 from the conveyor line 1 and after the first gate 311 and the second gate 314 are closed, thus rinsing the surface of the parts 9 from all directions and washing away the debris and cleaning fluid on the surface of the parts 9.

[0089] The advantage is that after the parts 9 enter the cleaning unit 3 by passing through the first gate 311 and the second gate 314, clean water is used to clean the parts 9 back and forth through the cleaning pipe ring 33 and the high-pressure nozzle 331 during the cleaning process. The cleaning water will not splash onto the vacuum drying unit 4 and the air supply unit 7. This avoids affecting the drying operation of the cleaned parts 9 in the subsequent vacuum drying unit 4 and air supply cooling drying process.

[0090] Regarding the arrangement and specific structure of the vacuum module 5 and the door 6 in the aforementioned vacuum drying unit 4, this embodiment is, for example... Figures 1 to 4As shown, the vacuum module 5 is mounted on the ground; the cover 6 includes an upper cover 61 and a lower cover 62; the upper cover 61 is mounted above the conveyor line 1 in a liftable manner; the lower cover 62 is installed below the conveyor line 1 and surrounds the lower side of the conveyor line 1; the lower cover 62 is connected to the second suction end 52 of the vacuum module 5; the heating fins 21 are located on opposite sides of the conveyor line 1 in the conveying direction and are located between the sides of the conveyor line 1 and the lower cover 62.

[0091] In application, since the vacuum module 5 is installed on the ground and connected to the cover 6 through a negative pressure pipe to extract gas and create a sealed and dry environment for the incoming parts 9, the cover 6 adopts an upper cover 61 and a lower cover 62 structure, wherein: the upper cover 61 is liftable and installed above the conveyor line 1; the lower cover 62 is fixed below the conveyor line 1 and connected to the second suction end 52 of the vacuum module 5; the heating fin 21 is between the side of the conveyor line 1 and the lower cover 62.

[0092] When part 9 enters the vacuum drying unit 4 via conveyor line 1, the upper cover 61 descends and engages with the lower cover 62 to form a sealed cavity, covering the passing part 9; the vacuum module 5 is activated first, the first suction end 51 draws in external air, and the second suction end 52 draws in the evaporated water vapor from inside the cover 6 to prevent it from recondensing on the surface of part 9; the heating fins 21 are activated to uniformly heat the air inside the cavity of the cover 6, causing the moisture on the surface of part 9 to evaporate rapidly, thereby achieving efficient drying.

[0093] The advantage is that the use of a closed vacuum environment combined with heating results in fast drying speed, and the evaporation of moisture can be completed at a lower temperature in a low-pressure environment, avoiding the impact of high temperature on the performance of the parts. It is especially suitable for temperature-sensitive materials.

[0094] Regarding the sealing structure between the upper cover 61 and the lower cover 62, this embodiment is, for example... Figures 1 to 4 As shown, a sealing frame is provided between the upper cover 61 and the lower cover 62; in the plane, the sealing frame surrounds the part of the conveyor line 1 located in the vacuum drying unit 4; in the vertical direction, the position of the sealing frame is lower than the surface of the roller of the conveyor line 1 that contacts the part 9; the lower cover 62 is sealed to the sealing frame and is fixed in place; when the part 9 conveyed by the conveyor line 1 reaches the area covered by the lower cover 62, the upper cover 61 descends to surround the upper side of the conveyor line 1 and engages with the sealing frame to form a seal.

[0095] Regarding the lifting structure between the upper cover 61 and the lower cover 62, this embodiment is, for example... Figures 1 to 4As shown, the vacuum drying unit 4 also includes a third drive cylinder 63 and a third guide rod 64, both of which are mounted above the conveyor line 1. The third drive cylinder 63 and the third guide rod 64 are connected to the top of the upper cover 61. The third drive cylinder 63 drives the upper cover 61 to move up and down towards the sealing frame along the guide of the third guide rod 64, for opening or sealing the parts 9 conveyed to the vacuum drying unit 4 by the conveyor line 1.

[0096] During application, the lifting and lowering of the upper cover 61 is controlled by the third drive cylinder 63 and the third guide rod 64, which are installed above the conveyor line 1: the third drive cylinder 63 is responsible for driving the upper cover 61 to lift and lower; the third guide rod 64 provides guidance to ensure that the upper cover 61 lifts and lowers stably without deviation.

[0097] When part 9 enters the vacuum drying unit 4, the third drive cylinder 63 is activated, causing the upper cover 61 to descend and combine with the sealing frame to form a sealed cavity; the vacuum module 5 is activated to evacuate the air inside the door 6 and create a vacuum cavity environment; after drying is completed, the vacuum module 5 reverses the airflow, causing the air pressure inside the door 6 to rise back to normal pressure, the third drive cylinder 63 is activated to raise the upper cover 61 and restore the open state, and the conveyor line 1 is activated to continue conveying part 9 to the next process and into the air supply unit 7.

[0098] The advantage is that the upper cover 61 is raised and lowered by a cylinder, which improves the level of automation and enhances the stability and durability of the equipment compared to the traditional mechanical locking mechanism that fastens the upper cover 61 and the lower cover 62.

[0099] Regarding the specific air supply structure in the aforementioned air supply unit 7, this embodiment is as follows: Figures 1 to 3 and Figure 5 As shown, the air supply unit 7 includes a cooling cover 71 and a cold air duct 72. The cooling cover 71 is straddling the conveyor line 1, and the cold air duct 72 connects the cooling cover 71 and the air supply end 53. The cooling cover 71 is provided with a cooling channel 711 along the direction of conveying the parts 9 on the conveyor line 1. Air supply plates 712 are provided on both sides of the cooling channel 711, and a guide plate 713 is provided at the top of the cooling channel 711. The guide plate 713 is inclined from the center to the two sides of the air supply plates. The top of the cooling cover 71 is provided with an air duct opening 714 that communicates with the interior of the cooling channel 711. The air duct opening 714 is connected to the cold air duct 72.

[0100] In application, the air supply unit 7 consists of a cooling cover 71 and a cold air duct 72. The cooling cover 71 spans the conveyor line 1, and the cooling channel 711 extends along the direction of the conveyor line 1, so that when the part 9 passes by, it is pushed into the cooling channel 711 by the conveyor line 1. The top of the cooling channel 711 is provided with a guide plate 713, and the air supply plates 712 are inclined to both sides to guide the airflow to flow to both sides, thereby improving the uniformity of the air force distribution in the cooling cover 71. The air supply plates 712 are provided on both sides of the cooling channel 711, which can guide the end airflow direction of the air supply, provide uniform cold air coverage for the cooling channel 711, and improve the cooling and drying effect on the part 9.

[0101] During transport, the cold and dry air delivered from the cooling channel 711 continuously blows on the moving part 9, which can fully cool and dry the part 9, eliminate the temperature rise of the part 9 in the vacuum drying unit 4, and facilitate the part 9 to enter the next process for processing or measurement.

[0102] The advantage is that after part 9 enters the cooling shroud 71, the cold air duct 72 delivers low-temperature dry gas, and the airflow path is optimized by the guide plate 713 to avoid airflow turbulence. The airflow is guided to be delivered in sufficient quantity and evenly to the air supply plates 712 on both sides, and the air supply plates 712 evenly blow on the surface of part 9, improving the cooling and drying effect. The cold air from the air supply unit 7 performs secondary drying on part 9, which not only removes residual moisture, but also reduces the temperature of part 9, preventing thermal expansion and contraction of part 9 from affecting subsequent processes.

[0103] Figure 6 This is a schematic diagram of the structure of the first flow channel, the second flow channel, and the converging flow channel of the vacuum module of the present invention.

[0104] A second implementation of the segmented vacuum drying equipment, for example... Figure 6 As shown, the difference between this embodiment and the first embodiment is that the flow channel structure of the vacuum module 5 is optimized. Through the airflow treatment structure of the first flow channel 54, the second flow channel 55, the converging flow channel 56 and multiple cooling chambers 563, and the cooling and dehydration combination structure of the cooling fins 22 of the combined heat pump unit 2, the drying efficiency and energy utilization of the vacuum drying unit 4 and the air supply unit 7 are improved.

[0105] Specifically, the vacuum module 5 is provided with a first flow channel 54, a second flow channel 55, and a converging flow channel 56; the converging flow channel 56 is provided with a converging end 561 and an independent end 562; one end of the first flow channel 54 is connected to the first suction end 51, one end of the second flow channel 55 is connected to the second suction end 52, the other ends of the first flow channel 54 and the second flow channel 55 are connected to the converging end 561 of the converging flow channel 56, and the independent end 562 of the converging flow channel 56 is connected to the air supply end 53; the heat pump unit 2 is provided with multiple cooling fins 22; multiple cooling chambers 563 are provided on the converging flow channel 56, and each of the multiple cooling chambers 563 is provided with cooling fins 22.

[0106] In application, one end of the first flow channel 54 is connected to the first suction end 51 to draw in air from the open space; the other end is connected to the collection end 561 of the collecting flow channel 56; one end of the second flow channel 55 is connected to the second suction end 52, which is connected to the inside of the hood 6 to extract water vapor from the cavity, and the other end is also connected to the collection end 561 of the collecting flow channel 56; the collecting flow channel 56 has a collection end 561 that connects to the first flow channel 54 and the second flow channel 55, and an independent end 562 that connects to the air supply end 53 of the vacuum module 5; and between the two ends of the collecting flow channel 56, multiple cooling chambers 563 are provided thereon, and cooling fins 22 are installed inside the cooling chambers 563; the number of cooling fins 22 of the heat pump unit 2 is increased and evenly distributed in the multiple cooling chambers 563.

[0107] The advantage is that it improves the moisture removal efficiency: the first flow channel 54 and the second flow channel 55 respectively draw in the external air and the water vapor inside the hood 6, mix them in the collecting flow channel 56 and then pass through multiple cooling chambers 563 in sequence, and also pass through the cooling fins 22 set in the cooling chambers 563 in sequence, so as to centrally process the mixed gas.

[0108] The multi-channel parallel design allows water vapor to enter the cooling area of ​​the collecting channel 56 more quickly, preventing it from flowing back or diffusing during the transport process and improving the suction efficiency.

[0109] Reduce energy consumption and improve cooling efficiency: Multiple cooling chambers 563 are distributed on the converging flow channel 56. Each cooling chamber 563 is equipped with cooling fins 22, which can condense water vapor more evenly and efficiently, improve the cooling capacity of the heat pump unit 2, and the condensed dry air enters the air supply unit 7 through the air supply end 53, which transports more heat to the heating fins, releases the heat and achieves heat recovery, thereby reducing the energy consumption of the entire drying system.

[0110] More uniform airflow and better drying effect: Since the independent end 562 of the collecting channel 56 is directly connected to the air supply end 53, the temperature and humidity of the gas after being processed by multiple cooling chambers 563 are more stable, which makes the quality of the cold air output by the air supply unit 7 higher and further improves the uniformity of drying of the surface of the part 9.

[0111] To adapt to more complex working conditions and improve system stability: The independent design of the first flow channel 54 and the second flow channel 55 ensures that even if the airflow at either the first suction end 51 or the second suction end 52 fluctuates, the overall drying effect will not be affected, making the equipment suitable for working conditions with different parts 9 sizes and humidity.

[0112] Figure 6 This is a schematic diagram of the structure of the first flow channel, the second flow channel, and the converging flow channel of the vacuum module of the present invention.

[0113] A third implementation of the segmented vacuum drying equipment, for example... Figure 6 As shown, the difference between this embodiment and the first embodiment is that the vacuum module 5 also includes a drain pipe 57; a plurality of drain ports 564 are provided on the collecting channel 56, the drain ports 564 are located at the bottom of the cooling chamber 563, and the plurality of drain ports 564 are connected in parallel to the drain pipe 57.

[0114] In application, the drain pipe 57 and multiple drain outlets 564 are provided to drain the condensate that slides off the cooling fins 22.

[0115] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described.

Claims

1. A segmented vacuum drying device, characterized in that, The system includes a conveyor line for transporting parts to be cleaned and a heat pump unit; and along the direction of the parts transported by the conveyor line, a cleaning unit, a vacuum drying unit, and an air supply unit are sequentially arranged; the cleaning unit has independently openable and closable shielding doors at both ends, and a high-pressure cleaning module that fully surrounds the parts in the middle; the vacuum drying unit has a vacuum module and a cover that can be sealed or opened; the vacuum module has a first suction end, a second suction end, and an air supply end, and the gas drawn in by the first suction end and the second suction end is collected and discharged by the air supply end; the first suction end draws in air from the open space; the second suction end... The heat pump unit's heating fins are located within the area covered by the cover door; the air supply unit is connected to the air supply end; the heat pump unit's cooling fins are located inside the vacuum module, used to cool and dry the gas collected at the air supply end, and to transfer heat to the heating fins; the cleaning unit isolates the parts for high-pressure cleaning to remove residual debris and cleaning liquid from the surface; the vacuum drying unit performs short-term vacuum heating on the parts to evaporate and absorb the surface moisture of the parts for primary drying; the air supply unit blows dry cold air onto the parts to lower the part temperature and perform secondary drying. The air supply unit includes a cooling shroud and a cold air duct. The cooling shroud spans the conveyor line, and the cold air duct connects the cooling shroud and the air supply end. The cooling shroud has a cooling channel along the direction of the conveyor line that transports parts. Air supply plates are provided on both sides of the cooling channel, and a guide plate is provided at the top of the cooling channel. The guide plate is inclined from the center to the air supply plates on both sides. The top of the cooling shroud has an air duct opening that communicates with the interior of the cooling channel, and the air duct opening is connected to the cold air duct. The vacuum module is provided with a first flow channel, a second flow channel, and a converging flow channel; the converging flow channel is provided with a converging end and an independent end; one end of the first flow channel is connected to the first suction end, one end of the second flow channel is connected to the second suction end, the other ends of the first flow channel and the second flow channel are connected to the converging end of the converging flow channel, and the independent end of the converging flow channel is connected to the air supply end; the heat pump unit is provided with multiple cooling fins; multiple cooling chambers are provided on the converging flow channel, and each of the multiple cooling chambers is provided with the cooling fins.

2. The segmented vacuum drying equipment according to claim 1, characterized in that, It also includes a production line frame, on which the conveyor line is installed; the conveyor line adopts a powered roller conveyor structure.

3. The segmented vacuum drying equipment according to claim 1, characterized in that, The shielding door includes a first gate and a second gate; the first gate and the second gate are arranged sequentially on the conveying line along the direction of the conveying parts, with the first gate arranged in front and the second gate arranged behind; the second gate is arranged adjacent to the shielding door; the high-pressure cleaning module is arranged in a way that moves between the first gate and the second gate.

4. The segmented vacuum drying equipment according to claim 3, characterized in that, The cleaning unit further includes a first drive cylinder, a first guide rod, a second drive cylinder, and a second guide rod; the first drive cylinder, the first guide rod, the second drive cylinder, the second guide rod, the first gate, and the second gate are all mounted above the conveyor line; the first drive cylinder and the first guide rod are connected to the top of the first gate, and the first drive cylinder drives the first gate to move up and down along the guide of the first guide rod towards the conveyor line, for opening or closing the conveyor line; the second drive cylinder and the second guide rod are connected to the top of the second gate, and... The second drive cylinder drives the second gate to move up and down along the guide of the second guide rod toward the conveyor line, for opening or closing the conveyor line; the high-pressure cleaning module includes a translation cylinder, a translation guide rail and a square cleaning tube ring; the translation cylinder, the translation guide rail and the cleaning tube ring are all mounted above the conveyor line, and the cleaning tube ring is sleeved outside the conveyor line; the slide of the translation cylinder is connected to the mounting side of the cleaning tube ring and the slider of the translation guide rail; on the inner side of the cleaning tube ring facing the conveyor line, multiple high-pressure nozzles are evenly arranged in the up, down and left and right directions.

5. The segmented vacuum drying equipment according to claim 1, characterized in that, The vacuum module is mounted on the ground; the cover includes an upper cover and a lower cover; the upper cover is mounted above the conveyor line in a liftable manner; the lower cover is installed below the conveyor line and surrounds the lower side of the conveyor line; the lower cover is connected to the second suction end of the vacuum module; the heating fins are located on opposite sides of the conveyor line in the conveying direction and are located between the side of the conveyor line and the lower cover.

6. The segmented vacuum drying equipment according to claim 5, characterized in that, A sealing frame is provided between the upper cover and the lower cover; in a plane, the sealing frame surrounds the portion of the conveyor line located in the vacuum drying unit; in the vertical direction, the sealing frame is positioned below the surface of the conveyor line roller that contacts the part; the lower cover is sealed to the sealing frame and remains stationary; when the part conveyed by the conveyor line reaches the area covered by the lower cover, the upper cover descends to surround the upper side of the conveyor line and engages with the sealing frame to form a seal.

7. The segmented vacuum drying equipment according to claim 6, characterized in that, The vacuum drying unit further includes a third drive cylinder and a third guide rod, both of which are mounted above the conveyor line. The third drive cylinder and the third guide rod are connected to the top of the upper cover. The third drive cylinder drives the upper cover to move up and down along the guide of the third guide rod toward the sealing frame, for opening or sealing the parts conveyed to the vacuum drying unit by the conveyor line.

8. The segmented vacuum drying equipment according to claim 1, characterized in that, The vacuum module also includes a drain pipe; multiple drain outlets are provided on the collecting channel, the drain outlets are located at the bottom of the cooling chamber, and the multiple drain outlets are connected in parallel to the drain pipe to drain the condensate that slides off the cooling fins.

Images