A drying device, chip mounter

Abstract

The application discloses a drying device and a chip mounter, which are applied to the field of drying of chip mounter equipment and comprise a connecting mechanism, which is used for detachable mounting on an equipment main body; a drying box, which is mounted on the connecting mechanism and is internally provided with a heating cavity, a diffusion cavity, a dehumidification cavity and a suction cavity; airflow sequentially flows through the dehumidification cavity, the suction cavity, the heating cavity and the diffusion cavity; the suction cavity and the diffusion cavity are located on the side of the drying box, which is away from the connecting mechanism; a dehumidification assembly, which is mounted in the dehumidification cavity of the drying box and is used for drying the gas entering the dehumidification cavity; and a heating mechanism, which comprises a heating component and a power component; the heating component is mounted in the heating cavity of the drying box and is used for heating the gas; and the power component is mounted in the drying box and is used for providing power for the gas flow. The application discloses a drying device, which can realize the recycling of hot air and simultaneously avoid the hot air with moisture from randomly flowing in the chip mounter and causing pollution to the parts in the chip mounter.

Description

Technical Field

[0001] This invention relates to the field of drying in chip mounting equipment, and in particular to a drying apparatus and a chip mounting machine. Background Technology

[0002] A pick-and-place machine, also known as a mounting machine, is a core piece of equipment in the SMT (Surface Mount Technology) production line, primarily used to mount electronic components onto circuit boards. It's a sophisticated machine integrating mechatronics, optics, and computer control technologies. Through functions such as picking, displacement, alignment, and placement, it quickly and accurately places various electronic components onto designated solder pads on the circuit board. Pick-and-place machines are typically located after the solder paste printer in the SMT production line.

[0003] When using a pick-and-place machine, the circuit boards often have moisture or water stains, which can affect the placement of electronic components and cause them to fall off. Water droplets on the worktable also affect its cleanliness. Related technologies use drying equipment installed inside the pick-and-place machine to dry the circuit board before the placement head moves to place components. However, this drying equipment is usually fixed inside the machine, making disassembly inconvenient for maintenance. Furthermore, when the drying equipment blows hot air to dry the circuit board, the hot air can carry moisture into various parts of the pick-and-place machine, affecting its lifespan.

[0004] Therefore, how to improve the reliability of drying equipment is a technical problem that needs to be solved by those skilled in the art. Summary of the Invention

[0005] The purpose of this invention is to provide a drying device and a pick-and-place machine, which can improve the reliability of the drying device, prevent hot air with moisture from running around inside the pick-and-place machine, and avoid affecting the life of the parts.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A drying apparatus, comprising:

[0008] A connecting mechanism for detachable mounting on the main body of the equipment;

[0009] A drying chamber is installed on the connecting mechanism. The drying chamber is provided with a heating chamber, a diffusion chamber, a dehumidification chamber and an air intake chamber. Airflow flows sequentially from the air intake chamber, the dehumidification chamber, the heating chamber and the diffusion chamber. The air intake chamber and the diffusion chamber are located on the side of the drying chamber away from the connecting mechanism.

[0010] A dehumidification assembly is installed in the dehumidification chamber of the drying box to dry the gas entering the dehumidification chamber;

[0011] The heating mechanism includes a heating element and a power element. The heating element is installed in the heating chamber of the drying chamber and is used to heat the gas. The power element is installed in the drying chamber and is used to provide power for the gas flow.

[0012] On the other hand, a sealing groove is provided on the side wall of the drying box near the dehumidification chamber, and an insertion port is provided in the middle of the sealing groove. The dehumidification component is installed into the dehumidification chamber of the drying box through the insertion port, and the dehumidification component is sealed to the sealing groove.

[0013] On the other hand, it also includes a pressing mechanism, which is movably mounted on the drying box. The pressing mechanism is used to press and fix the dehumidification component in the inlet, or to release the dehumidification component so that the dehumidification component can be taken out from the inlet.

[0014] On the other hand, the pressing mechanism includes a fixed rod, a movable plate, a pressure plate, and a pull rod; one end of the fixed rod is mounted on the drying chamber, and the other end is hinged to the movable plate; the pull rod is movably disposed on the end of the movable plate opposite to the fixed rod, and the pull rod is used to drive the pressure plate to move to unlock or press the dehumidification component.

[0015] On the other hand, it also includes an elastic component, which is sleeved on the pull rod and abuts against the pressure plate and the movable plate; the pull rod is also provided with a pull ring on the side away from the pressure plate, the pull ring is used to pull the pull rod away from and release the dehumidification component, and the elastic component is used to reset the pressure plate to press the dehumidification component.

[0016] On the other hand, the dehumidification assembly includes a panel and a dehumidification body, the dehumidification body is located on one side of the panel, the panel has a limiting groove, and the pressure plate can be placed into the limiting groove;

[0017] The dehumidification body includes a frame, a filter screen and a support screen located within the frame, and an adsorption layer disposed between the filter screen and the support screen. The adsorption layer has several through holes through which the airflow flows.

[0018] On the other hand, the power component includes a drive component and an impeller, both of which are installed inside the drying chamber, with the impeller located inside the heating chamber of the drying chamber; the drying chamber also has an installation cavity on the side near the connecting mechanism, and the drive component is located inside the installation cavity.

[0019] On the other hand, the connecting mechanism includes a support column, a connecting column, and a fixing column. The support column is used to be installed on the main body of the equipment, the fixing column is installed on the drying oven, one end of the connecting column is detachably connected to the support column, and the other end is rotatably connected to the fixing column.

[0020] The support column is provided with a slot, and the inner wall of the support column is provided with a vertical limiting groove and a horizontal limiting groove. The vertical limiting groove extends along the axial direction of the support column, and the horizontal limiting groove extends along the circumferential direction of the support column.

[0021] The connecting column is provided with a plurality of sliding columns at one end near the supporting column. The sliding columns can slide from the vertical limiting groove to the position of the horizontal limiting groove and rotate to engage with the horizontal limiting groove.

[0022] On the other hand, it also includes a first sliding sleeve and a second sliding sleeve, both of which are mounted on the connecting column and can move along the axial direction of the connecting column;

[0023] One end of the support column is provided with a fixing plate, which is detachably installed on the main body of the equipment. The other end of the support column is provided with a first gear, the teeth of which are arranged circumferentially along the support column and extend axially.

[0024] A second gear is provided on the side of the fixed column opposite to the drying box. The teeth of the second gear are arranged circumferentially along the fixed column and extend axially.

[0025] Both the first sliding sleeve and the second sliding sleeve include an annular body and an arc-shaped rack located on one side of the annular body. The arc-shaped rack can be engaged with the size of the first gear or the second gear. The annular body is sleeved on the connecting post, and the inner wall of the annular body of both the first sliding sleeve and the second sliding sleeve is provided with a slider. Both sides of the connecting post are provided with sliding grooves, which extend along the axial direction of the connecting post. The slider is located in the sliding groove and can slide along the sliding groove.

[0026] The first and second sliding sleeves also include a locking knob, which is threadedly connected to the annular body and is rotatable relative to the annular body to change the relative position of the locking knob and the annular body, thereby locking the annular body onto the support column.

[0027] On the other hand, the drying oven includes an inner shell, an outer shell, and a support plate. The support plate is mounted on the inner wall of the outer shell, and a mounting cavity is formed between the support plate and the outer shell. The power component is installed in the mounting cavity. The inner shell is mounted on the support plate, and the ends of both the inner shell and the outer shell away from the connecting mechanism are flared. The dehumidification chamber and the air intake chamber are located between the inner shell and the outer shell, and the heating chamber and the diffusion chamber are located in the inner shell. An air inlet is provided on the inner shell near the support plate, and the air inlet connects the dehumidification chamber and the heating chamber.

[0028] The present invention also provides a chip mounter, including the drying apparatus described in any one of the above claims.

[0029] The drying device provided by this invention has the following advantages: the drying chamber is installed on the main body of the equipment via the connecting mechanism. The main body of the equipment can be a pick-and-place machine or other equipment that requires drying. The drying chamber is equipped with a heating chamber, a diffusion chamber, a dehumidification chamber, and an intake chamber. Under the action of the power component, the gas first enters the intake chamber, then passes through the dehumidification chamber and enters the heating chamber. Since the dehumidification component is installed in the dehumidification chamber and the heating component is installed in the heating chamber, the gas entering the dehumidification chamber will flow through the dehumidification component to complete the purpose of dehumidification. The dehumidified gas enters the heating chamber and flows through the heating component to heat the gas into hot air. Then, it is ejected from the diffusion chamber to dry the circuit board. The heated gas re-enters the intake chamber, and after being dehumidified again, it is ejected from the diffusion chamber, realizing the recycling of hot air. At the same time, it avoids the hot air with moisture from running around inside the pick-and-place machine and causing contamination to the internal parts of the pick-and-place machine.

[0030] Furthermore, the suction chamber and diffusion chamber within the drying chamber are located on the side of the drying chamber away from the connecting mechanism, i.e., the side of the drying chamber closest to the circuit board. This arrangement ensures that airflow repeatedly passes over the surface of the circuit board, achieving the purpose of drying and dehumidifying the surface moisture or water stains. Simultaneously, the heating element heats the gas, accelerating the drying efficiency of the circuit board surface moisture or water stains. The power component provides power for the gas flow, achieving gas circulation and further improving the drying effect and efficiency on the circuit board. Furthermore, the connecting mechanism is detachably mounted on the main body of the equipment. Specifically, the connecting mechanism can be mounted on the top inner wall of the placement machine. The connecting mechanism can be equipped with a fixing plate, and the connecting mechanism can be detachably mounted on the main body of the equipment using bolts or other fasteners, facilitating the assembly and disassembly of the drying chamber and making operation convenient.

[0031] In one embodiment, the connecting mechanism includes a support column, a connecting column, and a fixing column. The support column is mounted on the equipment body, and the support assembly can be fixedly connected to the equipment body or detachably connected by bolts. The fixing column is mounted on the drying oven, for example, by welding, and is fixed to the top of the drying oven. One end of the connecting column is detachably connected to the support column, and the other end is rotatably connected to the fixing column. Further, the support column has a slot, and its inner wall has a vertical limiting groove and a horizontal limiting groove. The vertical limiting groove extends from the opening of the support column to the horizontal limiting groove, i.e., the vertical limiting groove and the horizontal limiting groove are in communication. The vertical limiting groove is along the axis of the support column. The horizontal limiting groove extends circumferentially along the support column. Several sliding pins are provided at one end of the connecting column near the support column. These sliding pins can enter the slot of the support column through the vertical limiting groove. The sliding pins can continue to move to the position of the horizontal limiting groove, and then the connecting column is rotated until the sliding pin enters the horizontal limiting groove, thus achieving a vertical engagement between the sliding pin and the horizontal limiting groove. Since the connecting column and the fixed column are rotatably connected, when the drying oven needs to be disassembled, only the connecting column needs to be rotated; the drying oven will not rotate. This effectively prevents the drying oven from interfering with other components within the main body of the equipment, facilitating quick assembly and disassembly of the drying oven.

[0032] The pick-and-place machine provided by the present invention is equipped with the above-mentioned drying device. Since the drying device has the above-mentioned technical effects, the pick-and-place machine equipped with the drying device should also have the corresponding technical effects. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0034] Figure 1 A schematic diagram of a specific embodiment of the drying apparatus provided by the present invention;

[0035] Figure 2 for Figure 1 A three-dimensional sectional view of the drying apparatus shown;

[0036] Figure 3 for Figure 1 A schematic diagram of the drying chamber in the drying device shown;

[0037] Figure 4for Figure 3 The above is a front sectional view of the drying oven.

[0038] Figure 5 for Figure 1 A schematic diagram of the connecting mechanism in the drying device shown;

[0039] Figure 6 for Figure 5 A schematic diagram of the support column in the connecting mechanism shown;

[0040] Figure 7 for Figure 6 A three-dimensional sectional view of the supporting column shown.

[0041] Figure 8 for Figure 6 A cross-sectional view of the supporting column shown;

[0042] Figure 9 for Figure 5 A schematic diagram of the connecting column in the connecting mechanism shown;

[0043] Figure 10 for Figure 5 A schematic diagram of the structure of the first sliding sleeve in the connecting mechanism shown;

[0044] Figure 11 for Figure 2 A schematic diagram of the dehumidification component in the drying device shown.

[0045] Figure 12 for Figure 11 A three-dimensional sectional view of the dehumidification component shown;

[0046] Figure 13 for Figure 1 A schematic diagram of the pressing mechanism in the drying device shown.

[0047] Figure label:

[0048] 10-Drying oven; 11-Installation cavity; 12-Heating cavity; 13-Diffusion cavity; 14-Dehumidification cavity; 15-Intake cavity; 16-Air inlet; 17-Sealing groove; 18-Insert port; 19-Outer shell; 110-Inner shell; 111-Support plate;

[0049] 20-Heating mechanism; 21-Drive component; 22-Impeller; 23-Heating element;

[0050] 30-Dehumidification component; 31-Panel; 32-Activated carbon filter; 33-Sponge layer; 331-First through hole; 34-Silicone layer; 341-Second through hole; 35-Support mesh; 36-Handle; 37-Limiting groove; 38-Frame;

[0051] 40-Connecting mechanism; 41-Fixing plate; 42-Support column; 421-Slot; 422-Horizontal limiting groove; 423-Vertical limiting groove; 43-Fixing column; 44-Connecting column; 441-Insertion column; 442-Sliding column; 443-Sliding groove; 45-First gear; 46-Second gear; 471-First sliding sleeve; 472-Second sliding sleeve; 473-Sliding block; 474-Locking knob; 48-Arc-shaped rack; 49-Handle;

[0052] 50-Pressure mechanism; 51-Fixed rod; 52-Modible plate; 53-Pull rod; 54-Pressure plate; 55-Pull ring; 56-Elastic component. Detailed Implementation

[0053] The core of this invention is to provide a drying device and a chip mounter that can realize the recycling of hot air, improve the drying efficiency of circuit boards, and operate reliably.

[0054] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] Please refer to Figure 1 , Figure 2 and Figure 4 In this embodiment, the drying apparatus includes:

[0056] The connecting mechanism 40 is for detachable installation on the main body of the equipment;

[0057] The drying chamber 10 is installed on the connecting mechanism 40. The drying chamber 10 is provided with a heating chamber 12, a diffusion chamber 13, a dehumidification chamber 14 and an air intake chamber 15. The airflow flows sequentially from the air intake chamber 15, the dehumidification chamber 14, the heating chamber 12 and the diffusion chamber 13. The air intake chamber 15 and the diffusion chamber 13 are located on the side of the drying chamber 10 away from the connecting mechanism 40.

[0058] The dehumidification component 30 is installed in the dehumidification chamber 14 of the drying box 10 and is used to dry the gas entering the dehumidification chamber 14;

[0059] The heating mechanism 20 includes a heating element 23 and a power element. The heating element 23 is installed in the heating chamber 12 of the drying chamber 10 and is used to heat the gas to generate hot gas. The power element is installed in the drying chamber 10 and is used to provide power for the gas flow.

[0060] For details, please refer to Figure 3The bottom of the drying chamber 10 is open to allow gas to flow in or out. The dehumidification component 30 has an adsorption layer, such as a sponge layer 33 and / or a silica gel layer 34. The dehumidification component 30 is detachably installed inside the drying chamber 10 for easy maintenance and replacement. Alternatively, the dehumidification component 30 can be fixed inside the drying chamber 10. The drying chamber 10 can be a square structure, with dehumidification components 30 installed on all four sides of the interior to ensure that the gas entering the drying chamber 10 is fully dried. The heating element 23 in the heating mechanism 20 can also be a heating tube. By supplying power to the heating tube, the gas is heated, thereby quickly and efficiently removing moisture or water stains from the surface of the circuit board, ensuring the smooth progress of the surface mount process and reducing the phenomenon of electronic components falling off. The power component in the heating mechanism 20 can provide power for the flow of gas. The power component can include a motor and an impeller 22. The motor drives the impeller 22 to rotate, and the impeller 22 generates an airflow toward the circuit board. The airflow flows sequentially through the suction chamber 15, the dehumidification chamber 14, the heating chamber 12, and the diffusion chamber 13 to achieve circulation.

[0061] The drying device, with the drying chamber 10 mounted on the main body of the equipment via a connecting mechanism 40, can be a pick-and-place machine or other equipment requiring drying. The drying chamber 10 contains a heating chamber 12, a diffusion chamber 13, a dehumidification chamber 14, and a suction chamber 15. Under the action of the power component, gas first enters the suction chamber 15, then passes through the dehumidification chamber 14 and enters the heating chamber 12. Since the dehumidification chamber 14 is equipped with a dehumidification component 30, and the heating chamber 12 is equipped with a heating element 23, gas entering the dehumidification chamber 14... The gas flows through the dehumidification component 30 to achieve the purpose of dehumidification. The dehumidified gas enters the heating chamber 12 and flows through the heating element 23 to heat the gas into hot air. Then it is ejected from the diffusion chamber 13 to dry the circuit board. The heated gas re-enters the suction chamber 15, and after being dehumidified again, it is ejected from the diffusion chamber 13, realizing the recycling of hot air. At the same time, it prevents the hot air with moisture from running around in the pick-and-place machine and causing contamination to the parts inside the pick-and-place machine.

[0062] Furthermore, the suction chamber 15 and diffusion chamber 13 within the drying chamber 10 are located on the side of the drying chamber 10 away from the connecting mechanism 40, i.e., the side of the drying chamber 10 closest to the circuit board. This arrangement ensures that airflow repeatedly passes over the surface of the circuit board, achieving the purpose of drying and dehumidifying the surface moisture or water stains on the circuit board. Simultaneously, the heating element 23 heats the gas, accelerating the drying efficiency of the surface moisture or water stains on the circuit board. The power element provides power for the gas flow, achieving gas circulation and further improving the drying effect and efficiency on the circuit board. Furthermore, the connecting mechanism 40 is detachably mounted on the main body of the equipment. Specifically, the connecting mechanism 40 can be mounted on the top inner wall of the pick-and-place machine. The connecting mechanism 40 can be equipped with a fixing plate 41, and the connecting mechanism 40 is detachably mounted on the main body of the equipment using bolts or other fasteners, facilitating the assembly and disassembly of the drying chamber 10 and making operation convenient.

[0063] In some embodiments, a sealing groove 17 is provided on the side wall of the drying chamber 10 near the dehumidification chamber 14. An insertion port 18 is provided in the middle of the sealing groove 17. The dehumidification component 30 is inserted into the dehumidification chamber 14 of the drying chamber 10 through the insertion port 18, and the dehumidification component 30 is sealed to the sealing groove 17. Specifically, sealing grooves 17 are provided on all four sides of the drying chamber 10, and an insertion port 18 is provided in the middle of the sealing groove 17. The insertion port 18 communicates with the dehumidification chamber 14. The insertion port 18 facilitates the installation and removal of the dehumidification component 30, while ensuring a sealed connection between the dehumidification component 30 and the sealing groove 17, guaranteeing an airtight seal. A sealing gasket, such as a rubber gasket, can be provided between the dehumidification component 30 and the sealing groove 17.

[0064] In some embodiments, a clamping mechanism 50 is also included. The clamping mechanism 50 is movably mounted on the drying chamber 10. The clamping mechanism 50 is used to clamp and fix the dehumidification component 30 inside the inlet 18, or to release the dehumidification component 30 so that it can be removed from the inlet 18. Specifically, clamping mechanisms 50 are provided on both sides of the outer side of the dehumidification component 30, that is, each dehumidification component 30 corresponds to at least two sets of clamping mechanisms 50. The two sets of clamping mechanisms 50 are located on the left and right sides of the dehumidification component 30, respectively, to ensure the stability of the dehumidification component 30 and to ensure the sealing effect between the dehumidification component 30 and the inlet 18. The clamping mechanism 50 makes the assembly and disassembly of the dehumidification component convenient.

[0065] In some implementation methods, please refer to Figure 13The pressing mechanism 50 includes a fixed rod 51, a movable plate 52, a pressure plate 54, and a pull rod 53. One end of the fixed rod 51 is mounted on the drying chamber 10, specifically near the inlet 18, and the other end is hinged to the movable plate 52, which can rotate axially relative to the fixed rod 51. The pull rod 53 is movably disposed at the end of the movable plate 52 away from the fixed rod 51, and is used to move the pressure plate 54 to unlock or press the dehumidification assembly 30. Specifically, the fixed rod 51 is fixed to the side wall of the drying chamber 10, and the end of the fixed rod 51 away from the drying chamber 10 is rotatably connected to the movable plate 52. The end of the movable plate 52 away from the fixed rod 51 slides through the pull rod 53, and the end of the pull rod 53 near the drying chamber 10 is connected to the pressure plate 54, which is matched with the dehumidification assembly 30.

[0066] In some embodiments, an elastic member 56 is also included. The elastic member 56 is sleeved on the pull rod 53 and abuts against the pressure plate 54 and the movable plate 52. The elastic member 56 can be a spring. Furthermore, for ease of operation, a pull ring 55 is provided on the side of the pull rod 53 away from the pressure plate 54. The pull ring 55 is used to pull the pull rod 53 away from and release the dehumidification component 30. The elastic member 56 is used to reset the pressure plate 54 to press the dehumidification component 30. In one specific embodiment, the pressure plate 54 is nested in the limiting pressure groove 37 on the panel 31 under the elastic force of the elastic member 56, thereby fixing the dehumidification component 30. When it is necessary to remove the dehumidification component 30 from the drying box 10, the pull ring 55 is pulled, and the pull ring 55 pulls the pressure plate 54 through the pull rod 53, so that the pressure plate 54 is disengaged from the limiting pressure groove 37 on the panel 31. Then, the movable plate 52 is moved to move the pressure plate 54 out from the outside of the panel 31. Then, the handle 36 is pulled outward to pull out the dehumidification component 30, which makes the disassembly of the dehumidification component 30 simple and convenient to remove the dehumidification component 30 from the drying box 10 for cleaning or replacement.

[0067] In some embodiments, the dehumidification assembly 30 includes a panel 31 and a dehumidification body. The dehumidification body is located on one side of the panel 31. A limiting groove 37 is formed on the panel 31. Specifically, the limiting groove 37 is formed on both outer sides of the panel 31. The pressure plate 54 matches the limiting groove 37 on the panel 31 and can be placed into the limiting groove 37. Specifically, when it is necessary to disassemble the dehumidification assembly 30, the pull ring 55 is manually pulled. The pull ring 55 drives the pull rod 53 and the pressure plate 54 to move and compress the elastic member 56. After the pressure plate 54 leaves the limiting groove 37, the movable plate 52 is rotated until the pressure plate 54 avoids the dehumidification assembly 30, and the dehumidification assembly 30 can be taken out from the socket 18.

[0068] In some embodiments, a controller and a pressure sensor are also included. The controller is connected to the power unit and the pressure sensor. The pressure sensor is located on the panel 31 of the dehumidification assembly 30 and can be set in the limiting pressure groove 37 of the panel 31. When the pressure sensor detects that the pressure value is greater than the set pressure value, it sends a pressure plate 54 positioning signal to the controller. When the controller receives the pressure plate 54 positioning signal, it sends a start command to the power unit.

[0069] Specifically, when the pressure sensor does not detect a pressure value greater than the set pressure value, it cannot send a signal indicating that the pressure plate 54 is in position to the controller, and the power unit cannot receive a start command. This indicates that the clamping mechanism 50 has not yet secured the dehumidification component 30 to the drying chamber 10, and the power unit does not need to be started. Only when the pressure sensor detects a pressure value greater than the set pressure value does it indicate that the clamping mechanism 50 has secured the dehumidification component 30 to the drying chamber 10, and at this time, it sends a signal indicating that the pressure plate 54 is in position to the controller. The controller then sends a start command to the power unit. After receiving the start command, the power unit can be started as needed. The above settings can ensure the installation reliability of the dehumidification component 30 and prevent the power unit from being started before the dehumidification component 30 is in position, which would prevent the gas from being dehumidified in time and cause hot air with moisture to circulate randomly in the pick-and-place machine, affecting the electrical components.

[0070] In some implementation methods, please refer to Figure 11 and Figure 12 The dehumidification body includes a frame 38, a filter screen and a support screen 35 located inside the frame 38, and an adsorption layer disposed between the filter screen and the support screen 35. The adsorption layer has several through holes through which airflow passes. Specifically, the dehumidification component 30 includes a panel 31, and a frame 38 is fixed to the inner side of the panel 31. The frame 38 can be a rectangular frame. An activated carbon filter screen 32, a sponge layer 33, a silica gel layer 34, and a support screen 35 are installed sequentially from top to bottom inside the rectangular frame. A handle 36 is fixed to the middle of the outer side of the panel 31. Sealing gaskets are fixed to the inner wall edge of the panel 31 and the edge of the frame 38. The panel 31 is nested in the sealing groove 17 of the drying oven 10, and the frame 38 is nested in the dehumidification chamber 14 through the insertion port 18.

[0071] Furthermore, the sponge layer 33 has multiple first through holes 331 evenly spaced, and the silicone layer 34 has multiple second through holes 341 evenly spaced, with the first through holes 331 and the second through holes 341 staggered. Specifically, the silicone has an open porous structure, strong adsorption, good water absorption, and is blue when dry and red after absorbing water. It is recyclable and reusable. The sponge is a porous elastic material with good water absorption, and the sponge layer 33 and the silicone layer 34 can effectively achieve the purpose of moisture absorption. The number of sponge layers 33 and silicone layers 34 and the distance between them can be designed according to the actual situation, and no further limitations are made here.

[0072] In some embodiments, the power component includes a drive component 21 and an impeller 22, both of which are installed inside the drying chamber 10, with the impeller 22 located within the heating chamber 12 of the drying chamber 10. A mounting cavity 11 is also provided inside the drying chamber 10 near the connecting mechanism 40, and the drive component 21 is located within the mounting cavity 11. Specifically, the drive component 21 can be a motor, and is disposed within the mounting cavity 11. The drive shaft of the drive component 21 extends into the heating chamber 12, and the impeller 22 is suspended at the end of the drive shaft. Both the impeller 22 and the heating element are located within the heating chamber 12, with the impeller 22 positioned above the heating element. The drive component 21 is installed within the mounting cavity 11, and its output end rotates, extending into the heating chamber 12 and connecting to the impeller 22 for convenient control of the impeller 22.

[0073] In some implementation methods, please refer to Figure 5 The connecting mechanism 40 includes a support column 42, a connecting column 44, and a fixing column 43. The support column 42 is installed on the main body of the equipment. The support assembly can be fixedly connected to the main body of the equipment or detachably connected by bolts. The fixing column 43 is installed on the drying chamber 10, for example, by welding, and is fixed to the top of the drying chamber 10. One end of the connecting column 44 is detachably connected to the support column 42, and the other end is rotatably connected to the fixing column 43. The rotatable connection can be achieved by a rotating head or by a bearing. Furthermore, the support column 42 has a slot 421, and the inner wall of the support column 42 has a vertical limiting groove 423 and a horizontal limiting groove 422. The vertical limiting groove 423 extends from the opening of the support column 42 to the horizontal limiting groove 422, that is, the vertical limiting groove 423 and the horizontal limiting groove 422 are connected. The vertical limiting groove 423 extends axially along the support column 42, and the horizontal limiting groove 422 extends circumferentially along the support column 42. Please refer to [reference needed]. Figure 9Several sliding columns 442 are provided on one end of the connecting column 44 near the support column 42. The sliding columns 442 can enter the slot 421 of the support column 42 through the vertical limiting groove 423. The sliding columns 442 can continue to move to the position of the horizontal limiting groove 422. Then the connecting column 44 is rotated until the sliding columns 442 enter the horizontal limiting groove 422. The sliding columns 442 and the horizontal limiting groove 422 are locked in the vertical direction. Since the connecting column 44 and the fixed column 43 are rotatably connected, when the drying box 10 needs to be disassembled or assembled, only the connecting column 44 needs to be rotated. The drying box 10 will not rotate, which can effectively avoid the drying box 10 from interfering with other parts in the main body of the equipment and facilitate the quick disassembly and assembly of the drying box 10. In other words, the connecting mechanism 40 includes an upper connecting part connected to the top inner wall of the main body of the equipment and a lower connecting part connected to the top of the drying chamber 10. The lower connecting part is connected to the upper connecting part. The upper connecting part includes a support column 42 and a fixing plate 41, and the lower connecting part includes a connecting column 44 and a fixing column 43. The lower connecting part is connected to the drying chamber 10. The drying chamber 10 can be disassembled by separating the lower connecting part from the upper connecting part, which is convenient to operate.

[0074] In some implementation methods, please refer to Figure 2 and Figure 10It also includes a first sliding sleeve 471 and a second sliding sleeve 472, both of which are mounted on the connecting column 44. The first sliding sleeve 471 and the second sliding sleeve 472 can move axially along the connecting column 44 to circumferentially lock the support column 42 and the connecting column 44, as well as the connecting column 44 and the fixed column 43. One end of the support column 42 is provided with a fixed plate 41, which is detachably mounted on the main body of the equipment. The other end of the support column 42 is provided with a first gear 45, the teeth of which are arranged circumferentially along the support column 42 and extend axially. The fixed column 43 is provided with a second gear 46 on the side away from the drying oven 10, the teeth of which are arranged circumferentially along the fixed column 43 and extend axially. Furthermore, both the first sliding sleeve 471 and the second sliding sleeve 472 include an annular body and an arc-shaped rack 48 located on one side of the annular body. The arc-shaped rack 48 can be engaged with the size of the first gear 45 or the second gear 46. The annular body is sleeved on the connecting column 44. Furthermore, the lower center of the fixed plate 41 is fixedly connected to the support column 42. The bottom of the support column 42 is provided with a slot 421. The top and bottom of the side wall of the slot 421 are symmetrically provided with horizontal limiting grooves 422. The front and rear sides of the slot 421 are provided with vertical limiting grooves 423. 3. It is connected to the horizontal limiting groove 422; the lower connecting component includes a fixed column 43, the lower end of the fixed column 43 is fixedly connected to the middle of the upper side of the drying oven 10, the upper end of the fixed column 43 is rotatably connected to a connecting column 44, the top of the connecting column 44 is fixed with an insertion column 441, the insertion column 441 matches the slot 421, the top and bottom of the front and rear ends of the insertion column 441 are fixed with sliding columns 442, and the middle of the connecting column 44 is fixed with multiple handles 49 at equal intervals. The handles 49 can be several protrusions, arranged at intervals around the circumference of the connecting column 44 to facilitate the rotation of the connecting column 44.

[0075] In some implementation methods, please refer to Figure 6 , Figure 7 and Figure 8 A first gear 45 is fixedly sleeved at the bottom of the support column 42, and a second gear 46 is fixedly sleeved on the fixed column 43. The upper and lower parts of the connecting column 44 are respectively slidably sleeved with a first sliding sleeve 471 and a second sliding sleeve 472. The left and right edges of the opposite ends of the first sliding sleeve 471 and the second sliding sleeve 472 are fixed with arc-shaped racks 48. The arc-shaped racks 48 can occupy one-quarter of the circumference of the first sliding sleeve 471 and the second sliding sleeve 472. The structure of the arc-shaped racks 48 makes it easy to observe the position of the first gear 45 or the second gear 46. The circumferential positioning of the support column 42 and the connecting column 44 is achieved by the cooperation of the arc-shaped racks 48 on the first sliding sleeve 471 and the first gear 45. The circumferential positioning of the fixed column 43 and the connecting column 44 is achieved by the cooperation of the arc-shaped racks 48 on the second sliding sleeve 472 and the second gear 46.

[0076] In some embodiments, sliders 473 are provided on the inner walls of the annular bodies of the first sliding sleeve 471 and the second sliding sleeve 472, and grooves 443 are provided on both sides of the connecting post 44. The grooves 443 extend along the axial direction of the connecting post 44, and the sliders 473 are located in the grooves 443 and can slide along the grooves 443. That is, grooves 443 are provided on the left and right sides of the upper and lower parts of the connecting post 44, and sliders 473 are fixed on the inner walls of the left and right sides of the first sliding sleeve 471 and the second sliding sleeve 472. The sliders 473 are slidably nested in the grooves 443. Furthermore, when installing the first sliding sleeve 471 and the second sliding sleeve 472, they can be first divided into two halves, fitted onto the connecting post 44, and then welded together; or the connecting post 44 can be inserted into the first sliding sleeve 471 or the second sliding sleeve 472, and then the sliders 473 can be inserted into the grooves 443 on the connecting post 44, and then the sliders 473 can be welded together with the inner walls of the first sliding sleeve 471 or the second sliding sleeve 472.

[0077] Furthermore, the first sliding sleeve 471 and the second sliding sleeve 472 also include a locking knob 474. The locking knob 474 is threadedly connected to the annular body, and the locking knob 474 can rotate relative to the annular body to change the relative position of the locking knob 474 and the annular body, thereby locking the annular body onto the support column 42. Specifically, the annular bodies of the first sliding sleeve 471 and the second sliding sleeve 472 can also be provided with threads, and the locking knob 474 is nested on the annular body. The inner end of the locking knob 474 abuts against the outer wall of the connecting column 44.

[0078] In some embodiments, the drying chamber 10 includes an inner shell 110, an outer shell 19, and a support plate 111. The support plate 111 is mounted on the inner wall of the outer shell 19, and a mounting cavity 11 is formed between the support plate 111 and the outer shell 19. The power component is installed in the mounting cavity 11. The inner shell 110 is mounted on the support plate 111, and the ends of the inner shell 110 and the outer shell 19 away from the connecting mechanism 40 are both flared to expand the volume of the intake cavity 15 and the diffuser cavity 13 and improve the intake and exhaust efficiency.

[0079] In some embodiments, the dehumidification chamber 14 and the air intake chamber 15 are located between the inner shell 110 and the outer shell 19, and the heating chamber 12 and the diffusion chamber 13 are located in the inner shell 110. The inner shell 110 is provided with an air inlet 16 near the support plate 111. The air inlet 16 connects the dehumidification chamber 14 and the heating chamber 12. That is, the diffusion chamber 13 is connected to the heating chamber 12. The top of the front, back, left and right side walls of the heating chamber 12 are all provided with air inlets 16. The heating chamber 12 is connected to the four dehumidification chambers 14 through the four air inlets 16 respectively. The air intake chamber 15 is connected to the four dehumidification chambers 14. Specifically, the interior of the drying oven 10 is provided with an installation cavity 11, a heating cavity 12, and a diffusion cavity 13 from top to bottom. The heating cavity 12 is provided with dehumidification cavities 14 on all four sides. The heating cavity 12 and the dehumidification cavities 14 are located on both sides of the inner shell 110. The outer side of the diffusion cavity 13 is provided with an air intake cavity 15. The lower part of the heating component is installed in the heating cavity 12. The drying oven 10 is provided with four dehumidification cavities 14 around its perimeter, and four dehumidification components 30 are respectively installed in the four dehumidification cavities 14.

[0080] In one specific embodiment, the drying device is installed between the feed inlet of the pick-and-place machine and the moving placement head inside the machine. After the circuit board enters the pick-and-place machine, it first passes through the bottom of this drying assembly and is dried by this drying assembly before moving to the bottom of the moving placement head for component placement. When drying the circuit board that has moved to the bottom of this drying assembly, the heating element 23 generates heat, and the driving element 21 drives the impeller 22 to rotate, generating airflow that drives hot air out of the diffuser chamber 13 to dry the circuit board below it. Because the impeller 22 rotates and generates airflow that blows downwards, a negative pressure is generated in the space above the impeller 22. At the same time, since the suction chamber 15 is connected to the dehumidification chamber 14, and the dehumidification chamber 14 is connected by an air intake... The inlet 16 is connected to the heating chamber 12, so suction is generated at the lower end of the suction chamber 15. The hot air with moisture after drying the circuit board is drawn into the suction chamber 15 and then enters the dehumidification chamber 14. Then it passes through the support mesh 35, silicone layer 34, sponge layer 33 and activated carbon filter 32 in the dehumidification component 30 in sequence. The silicone layer 34, sponge layer 33 and activated carbon filter 32 can effectively absorb the moisture in the hot air and effectively dehumidify the hot air. The dehumidified hot air enters the heating chamber 12 through the air inlet 16 and then is ejected from the diffuser 13 to dry the circuit board. This realizes the recycling of hot air and avoids the hot air with moisture running around in the pick-and-place machine and causing contamination to the parts inside the pick-and-place machine.

[0081] When the drying device is installed inside the pick-and-place machine, the fixing plate 41 is first connected to the inner wall of the top of the pick-and-place machine with bolts to fix the fixing plate 41 to the inner wall of the top of the pick-and-place machine. When installing the drying chamber 10, the insertion post 441 at the top of the connecting post 44 of the top of the drying chamber 10 is aligned with the slot 421 at the bottom of the support post 42, and the sliding post 442 on the insertion post 441 is aligned with the vertical limiting groove 423 in the slot 421. Then, the drying chamber 10 is moved upward, which drives the fixing post 43 to move upward, so that the insertion post 441 is inserted into the slot 421, and the sliding post 442 slides and nests in the vertical limiting groove 423. The sliding post 442 moves vertically. After the straight limiting groove 423 moves to the top, rotate the connecting column 44 on the fixed column 43 to make the sliding column 442 rotate and slide into the horizontal limiting groove 422. At this time, the drying oven 10 can be loosened. Then, turn the locking knob 474 of the first sliding sleeve 471 and the second sliding sleeve 472 on the connecting column 44 to release the lock on the first sliding sleeve 471 and the second sliding sleeve 472. Move the first sliding sleeve 471 upward, which will drive the arc-shaped rack 48 on the upper part of the first sliding sleeve 471 to move upward and mesh with the first gear 45 to prevent relative rotation between the support column 42 and the connecting column 44. Move the second sliding sleeve 472 downward, which will drive the second sliding sleeve 472 to move upward. The arc-shaped rack 48 at the bottom of sleeve 472 moves down and meshes with the second gear 46, which can prevent relative rotation between the connecting column 44 and the fixed column 43, thereby realizing the connection between the fixed column 43 and the support column 42, and realizing the connection between this drying device and the top inner wall of the chip mounter, which is very convenient. When it is necessary to disassemble the drying chamber 10 to clean or maintain the dehumidification component 30 or the heating mechanism 20 inside the drying chamber 10, simply loosen the locking knob 474 of the first sliding sleeve 471 and the second sliding sleeve 472 on the connecting column 44 to release the lock on the first sliding sleeve 471 and the second sliding sleeve 472, and then move the first sliding sleeve 472 downward. The first sliding sleeve 471 moves upward, causing the second sliding bar to move downward and disengage from the first gear 45. The second sliding sleeve 472 moves upward and disengages from the second gear 46. Then, the connecting column 44 rotates in the opposite direction, causing the insertion column 441 to rotate. This allows the sliding column 442 on the insertion column 441 to slide within the horizontal limiting groove 422. Once it reaches its end, the drying chamber 10 is pulled downward, causing the sliding column 442 to slide downward within the vertical limiting groove 423 until the insertion column 441 disengages from the slot 421, thus completing the disassembly of the drying chamber 10. This is very convenient. Of course, if there is sufficient space within the main body of the equipment, when disassembling and assembling the drying chamber 10, only the limiting of the first sliding sleeve 471 and the first gear 45 needs to be addressed. Rotating the drying chamber 10 will also rotate the connecting column 44, resulting in higher disassembly and assembly efficiency and a wider range of applications.

[0082] The drying device provided by this invention features a connecting mechanism 40. The connecting mechanism 40 includes a support column 42 connected to the inner wall of the top of the pick-and-place machine and a fixing column 43 connected to the top of the drying chamber 10. The fixing column 43 and the support column 42 are connected by a connecting column 44. This design is simple and convenient, and disassembly is also simple and convenient, allowing for quick and easy removal of the drying chamber 10 from the pick-and-place machine. This facilitates maintenance, cleaning, or replacement of the heating mechanism 20 and dehumidification assembly 30 within the drying chamber 10. Furthermore, the drying chamber 10 has a through-flow intake chamber 15 and a dehumidification chamber 14. The dehumidification chamber 14 is connected to the heating chamber 12 via an air inlet 16. The dehumidification assembly 30 is located within the dehumidification chamber 14. When the impeller 22 operates, it generates airflow that drives the heat from the heating element through the diffusion chamber 13 to discharge heat to the circuit board. The drying chamber 10 dries out moisture or water stains, while a negative pressure is generated in the space above the impeller 22 in the heating chamber 12, which creates suction at the suction chamber 15. The hot air containing moisture after drying the circuit board is drawn into the suction chamber 15 and dehumidified by the dehumidification component 30 in the dehumidification chamber 14. The dehumidified hot air then enters the heating chamber 12 through the air inlet 16, achieving hot air circulation and preventing the hot air containing moisture from wandering around in the pick-and-place machine. At the same time, a clamping mechanism 50 is provided on the side wall of the drying chamber 10 to fix the dehumidification component 30, making the dehumidification component 30 stable in the drying chamber 10. This also makes the installation of the dehumidification component 30 simple and convenient, as well as quick and easy to disassemble, so that the dehumidification component 30 can be easily removed from the drying chamber 10 for cleaning or replacement.

[0083] In addition to the drying device described above, the present invention also provides a pick-and-place machine including the drying device described above. For the structure of other parts of the pick-and-place machine, please refer to the prior art, which will not be described in detail here.

[0084] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0085] The drying apparatus provided by the present invention has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are merely for the purpose of helping to understand the method and core ideas of the present invention. It should be noted that those skilled in the art can make various improvements and modifications to the present invention without departing from its principles, and these improvements and modifications also fall within the protection scope of the present invention.

Claims

1. A drying apparatus, characterized in that, include: A connecting mechanism (40) is provided for detachable mounting on the main body of the equipment; A drying chamber (10) is installed on the connecting mechanism (40). The drying chamber (10) is provided with a heating chamber (12), a diffusion chamber (13), a dehumidification chamber (14) and an air intake chamber (15). Airflow flows sequentially from the air intake chamber (15), the dehumidification chamber (14), the heating chamber (12) and the diffusion chamber (13). The air intake chamber (15) and the diffusion chamber (13) are located on the side of the drying chamber (10) away from the connecting mechanism (40). A dehumidification assembly (30) is installed in the dehumidification chamber (14) of the drying box (10) for drying the gas entering the dehumidification chamber (14); The heating mechanism (20) includes a heating element (23) and a power element. The heating element (23) is installed in the heating chamber (12) of the drying chamber (10) for heating the gas. The power element is installed in the drying chamber (10) for providing power for the gas flow. The connecting mechanism (40) includes a support column (42), a connecting column (44), and a fixing column (43). The support column (42) is used to be installed on the main body of the equipment, and the fixing column (43) is installed on the drying box (10). One end of the connecting column (44) is detachably connected to the support column (42), and the other end is rotatably connected to the fixing column (43). The support column (42) is provided with a slot (421), and the inner wall of the support column (42) is provided with a vertical limiting groove (423) and a horizontal limiting groove (422). The vertical limiting groove (423) extends along the axial direction of the support column (42), and the horizontal limiting groove (422) extends along the circumferential direction of the support column (42). The connecting column (44) has several sliding columns (442) at one end near the supporting column (42). The sliding column (442) can slide from the vertical limiting groove (423) to the position of the horizontal limiting groove (422) and rotate to engage with the horizontal limiting groove (422).

2. The drying apparatus according to claim 1, characterized in that, The drying box (10) has a sealing groove (17) on its side wall near the dehumidification chamber (14). The sealing groove (17) has an inlet (18) in the middle. The dehumidification component (30) is inserted into the dehumidification chamber (14) of the drying box (10) through the inlet (18), and the dehumidification component (30) is sealed to the sealing groove (17).

3. The drying apparatus according to claim 2, characterized in that, It also includes a clamping mechanism (50), which is movably disposed on the drying box (10). The clamping mechanism (50) is used to clamp and fix the dehumidification component (30) in the inlet (18), or to release the dehumidification component (30) so that the dehumidification component (30) can be taken out from the inlet (18).

4. The drying apparatus according to claim 3, characterized in that, The pressing mechanism (50) includes a fixed rod (51), a movable plate (52), a pressure plate (54), and a pull rod (53); one end of the fixed rod (51) is mounted on the drying box (10), and the other end is hinged to the movable plate (52); the pull rod (53) is movably disposed on the end of the movable plate (52) away from the fixed rod (51), and the pull rod (53) is used to drive the pressure plate (54) to move to unlock or press the dehumidification assembly (30).

5. The drying apparatus according to claim 4, characterized in that, It also includes an elastic component (56), which is sleeved on the pull rod (53) and abuts against the pressure plate (54) and the movable plate (52); the pull rod (53) is also provided with a pull ring (55) on the side away from the pressure plate (54), the pull ring (55) is used to pull the pull rod (53) away from and release the dehumidification assembly (30), and the elastic component (56) is used to reset the pressure plate (54) to press the dehumidification assembly (30).

6. The drying apparatus according to claim 4, characterized in that, The dehumidification assembly (30) includes a panel (31) and a dehumidification body. The dehumidification body is located on one side of the panel (31). A limiting groove (37) is provided on the panel (31), and the pressure plate (54) can be placed into the limiting groove (37). The dehumidification body includes a frame (38), a filter screen and a support screen (35) located inside the frame (38), and an adsorption layer disposed between the filter screen and the support screen (35). The adsorption layer has several through holes, through which the airflow flows.

7. The drying apparatus according to claim 1, characterized in that, The power component includes a drive component (21) and an impeller (22). Both the drive component (21) and the impeller (22) are installed inside the drying chamber (10), and the impeller (22) is located inside the heating chamber (12) of the drying chamber (10). The drying chamber (10) also has an installation cavity (11) on the side near the connecting mechanism (40), and the drive component (21) is located inside the installation cavity (11).

8. The drying apparatus according to claim 1, characterized in that, It also includes a first sliding sleeve (471) and a second sliding sleeve (472), both of which are mounted on the connecting column (44) and can move along the axial direction of the connecting column (44); One end of the support column (42) is provided with a fixing plate (41), which is detachably installed on the main body of the equipment. The other end of the support column (42) is provided with a first gear (45), the teeth of which are arranged circumferentially along the support column (42) and extend axially. The fixed column (43) is provided with a second gear (46) on the side opposite to the drying box (10). The teeth of the second gear (46) are arranged circumferentially along the fixed column (43) and extend axially. Both the first sliding sleeve (471) and the second sliding sleeve (472) include an annular body and an arc-shaped rack (48) located on one side of the annular body. The arc-shaped rack (48) can be engaged with the size of the first gear (45) or the second gear (46). The annular body is sleeved on the connecting post (44). The inner wall of the annular body of the first sliding sleeve (471) and the second sliding sleeve (472) are provided with sliders (473). Both sides of the connecting post (44) are provided with grooves (443). The grooves (443) extend along the axial direction of the connecting post (44). The sliders (473) are located in the grooves (443) and can slide along the grooves (443). The first sliding sleeve (471) and the second sliding sleeve (472) further include a locking knob (474), which is threadedly connected to the annular body and is rotatable relative to the annular body to change the relative position of the locking knob (474) and the annular body, thereby locking the annular body onto the support column (42).

9. The drying apparatus according to any one of claims 1 to 7, characterized in that, The drying oven (10) includes an inner shell (110), an outer shell (19), and a support plate (111). The support plate (111) is mounted on the inner wall of the outer shell (19) around its perimeter. An installation cavity (11) is formed between the support plate (111) and the outer shell (19). The power component is installed in the installation cavity (11). The inner shell (110) is mounted on the support plate (111), and the inner shell (110) is back-to-back with the outer shell (19). The end of each part of the connecting mechanism (40) is horn-shaped; the dehumidification chamber (14) and the air intake chamber (15) are located between the inner shell (110) and the outer shell (19); the heating chamber (12) and the diffusion chamber (13) are located in the inner shell (110); the inner shell (110) is provided with an air inlet (16) near the support plate (111), and the air inlet (16) connects the dehumidification chamber (14) and the heating chamber (12).

10. A chip mounter, comprising a drying device, characterized in that, The drying apparatus is the drying apparatus according to any one of claims 1 to 9.

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