A substrate surface adhesive layer drying device for electronic component installation and connection

Abstract

The present invention discloses a device for drying the adhesive layer on the surface of a substrate for installation and connection of electronic components, and relates to the technical field of adhesive layer drying equipment. The present invention provides a device for drying the adhesive layer on the surface of a substrate for installation and connection of electronic components, including a hot air blower, etc., the hot air blower is clamped with a spray tube, the spray tube and the hot air blower are fixedly connected and connected with an air guide pipe, the spray tube is fixedly connected with connecting pipes distributed equidistantly around the circumference, the spray tube is fixedly connected with a limiting block, one end of the connecting pipe is fixedly connected and connected with the limiting block, the other end of the connecting pipe is fixedly connected and connected with a nozzle, the limiting block is fixedly connected with a support frame, the support frame is rotatably connected with a rotating blade, and the limiting block is fixedly connected with a limiting flow plate. The present invention can not only slow down the flow rate of the hot air flow through components such as the limiting block and the limiting flow plate, but also divert the hot air flow, so that the hot air flow is more dispersed, thereby avoiding the appearance of ripples and wrinkles on the adhesive layer on the substrate due to excessive impact of the hot air flow, and reducing the influence of the adhesive layer drying device on the adhesive layer when in use.

Description

Technical Field

[0001] The invention relates to the technical field of adhesive layer drying equipment, and in particular to an adhesive layer drying device on the surface of a substrate for mounting and connecting electronic components. Background Art

[0002] With the rapid development of the electronics industry, electronic components are increasingly used in various electronic products. In order to ensure that electronic components can be installed on the substrate more stably and maintain good electrical performance and mechanical strength, a layer of adhesive is usually applied on the surface of the substrate, and the applied adhesive layer is used to assist in achieving a fixed connection between the components and the substrate. After applying the adhesive layer, it needs to be dried and cured in time to ensure that the adhesive layer can achieve the expected performance.

[0003] In the patent with the publication number CN118808088A, a drying box for curing white glue of electronic devices with uniform heating is disclosed, which relates to the field of white glue drying. The drying box includes a shell assembly, including a device shell, and a heating chamber fixedly installed inside the device shell, multiple groups of first heat dissipation holes are arranged on both sides of the heating chamber, and multiple groups of steamers are slidably installed inside the heating chamber; a heat insulation assembly includes multiple groups of support seats fixedly installed on both sides of the outer wall of the heating chamber, and the middle part of the multiple groups of the support seats is rotatably installed with a first rotating rod, and the middle and lower parts of the first rotating rod are fixedly installed with a pulley, and one side of the pulley passes through the heating chamber and contacts with the steamer. This invention transports the upper hot air by sliding the turntable up and down, and limits the flow direction of the hot air through the air inlet on the turntable, so as to achieve the effect of uniformly heating and drying the white glue, and avoid the situation that the upper part is charred after the lower part is dried. Although hot air flow can accelerate the drying and curing of the adhesive layer, this drying box will cause the hot air flow to blow directly on the uncured adhesive layer, which can easily cause the adhesive layer to have ripples and wrinkles due to the strong impact of the hot air flow, and make the adhesive layer unevenly distributed, which makes it difficult to achieve the expected good effect after the adhesive layer is cured.

[0004] Based on the above situation, the present invention proposes a device for drying the adhesive layer on the surface of a substrate for mounting and connecting electronic components without affecting the distribution of the adhesive layer. Summary of the invention

[0005] In order to overcome the shortcomings of the existing drying oven that the hot air flow will directly blow on the uncured adhesive layer, which will easily cause the adhesive layer to have ripples and wrinkles due to the strong impact of the hot air flow, and make the adhesive layer unevenly distributed, thereby making it difficult for the adhesive layer to achieve a good expected effect after curing, the present invention provides a substrate surface adhesive layer drying device for electronic component installation and connection that does not affect the distribution of the adhesive layer.

[0006] A device for drying the adhesive layer on the surface of a substrate for installing and connecting electronic components comprises a hot air blower, a spray tube, an air duct, a connecting pipe, a limit block, a nozzle, a rotating blade, a support frame and a current limiting plate. The hot air blower is clamped with the spray tube, the air duct is fixedly connected and communicated between the spray tube and the hot air blower, the spray tube is fixedly connected to connecting pipes distributed equidistantly around the circumference, the spray tube is fixedly connected to the limit block, one end of the connecting pipe is fixedly connected and communicated with the limit block, the other end of the connecting pipe is fixedly connected and communicated with the nozzle, the limit block is fixedly connected to the support frame, the support frame is rotatably connected to the rotating blade, and the limit block is fixedly connected to the current limiting plate.

[0007] As a further preferred solution, the connecting pipe is a metal corrugated hose.

[0008] As a further preferred solution, the limiting block is provided with diversion grooves which are equidistantly distributed around the circumference.

[0009] As a further preferred scheme, it also includes a dispersion mechanism, which is arranged on the spray barrel, and includes a rotating block, a rubber nozzle, a guide block and a guide ring, the guide ring is fixed to the spray barrel, the guide ring is fixed to the rubber nozzle, the rubber nozzle is fixed to a pair of fixed plates, the rubber nozzle is fixed to a pair of guide blocks, the guide ring is rotatably connected to the rotating block, wherein the rotating block is elliptical, and the rotating block is slidably connected to the guide block.

[0010] As a further preferred scheme, it also includes a speed regulating mechanism, which is arranged on the spray nozzle. The speed regulating mechanism includes a rotating handle, a flow limiting block, a rotating shaft, a Tesla gas valve, a clamping column and a compression spring. The rotating shaft is rotatably connected to the spray nozzle, the rotating shaft is fixedly connected to the rotating handle, the rotating handle is slidably connected to the clamping column, a compression spring is fixedly connected between the clamping column and the rotating handle, the clamping column is slidably connected to the spray nozzle, the rotating shaft is fixedly connected to the flow limiting block, and the flow limiting block is fixedly connected to evenly distributed Tesla gas valves.

[0011] As a further preferred solution, both sides of the current limiting block are arc-shaped conical surfaces.

[0012] As a further preferred scheme, it also includes a conversion mechanism, which is arranged on the spray barrel, and the conversion mechanism includes a pressure block, an elastic component, a blocking frame, a clamping rod, a limit clamping frame, a support plate and an elastic sheet. The pairs of support plates are fixed to the spray barrel, and a pressure block is slidably connected between the pairs of support plates. The pressure block and the flow limiting block are squeezed together. An elastic component is fixed between the pressure block and the support plate. The pressure block is fixed with a blocking frame. The blocking frame is in contact with the limit block. The blocking frame is rotatably connected with a pair of clamping rods. The spray barrel is fixed with a pair of limit clamping frames. The clamping rod is movably connected with the limit clamping frames, and the limit clamping frames are fixed with elastic sheets.

[0013] As a further preferred solution, the slide groove provided on the limit bracket is in the shape of an inverted concave letter.

[0014] As a further preferred embodiment, a pressure relief mechanism is also included, which is arranged on the nozzle. The pressure relief mechanism includes a shell, a spring and a movable plate. The shell is fixedly connected to and communicated with the nozzle. The shell is slidably connected to the movable plate. A spring is fixedly connected between the movable plate and the shell.

[0015] As a further preferred solution, the shell is provided with pressure relief holes which are equidistantly distributed around the circumference.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention can not only slow down the flow rate of the hot air flow, but also divert the hot air flow through components such as limit blocks and flow limiting plates, so as to make the hot air flow more dispersed, thereby avoiding the appearance of ripples and wrinkles on the adhesive layer on the substrate due to excessive impact force of the hot air flow, thereby reducing the impact of the adhesive layer drying device on the adhesive layer when in use.

[0018] 2. The present invention can increase the cross-sectional area of ​​the rubber nozzle through components such as the guide block and the rotating block, thereby expanding the spray range of the hot air flow, thereby making the hot air flow more dispersed and weakening its impact on the rubber layer, reducing the impact of the rubber layer drying device on the rubber layer when in use.

[0019] 3. The present invention can decelerate the hot air flow when necessary through components such as flow limiting blocks and Tesla valves, thereby effectively weakening the impact force of the hot air flow on the adhesive layer, thereby avoiding the adhesive layer on the substrate from having ripples and wrinkles due to excessive impact force of the hot air flow, thereby reducing the impact of the adhesive layer drying device on the adhesive layer when in use.

[0020] 4. The present invention can accelerate the flow rate of the hot air flow after the adhesive layer is basically solidified through components such as pressing blocks and blocking frames, thereby increasing the drying and curing speed of the adhesive layer and improving the drying efficiency of the adhesive layer drying device.

[0021] 5. The present invention can relieve the pressure of the spray barrel and the hot air flow inside it through the shell and the movable plate, thereby preventing the spray barrel from being damaged or even exploding due to excessive internal air pressure, thereby improving the safety of the adhesive layer drying device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0023] Figure 2 It is a three-dimensional structural schematic diagram of the spray barrel, connecting pipe, spray barrel and other components of the present invention.

[0024] Figure 3 It is a three-dimensional structural schematic diagram of the connecting pipe, the limit block, the nozzle and other components of the present invention.

[0025] Figure 4It is a three-dimensional structural schematic diagram of the connecting pipe, the limit block, the support frame and other components of the present invention.

[0026] Figure 5 It is a three-dimensional structural schematic diagram of the connecting pipe, rotor blades, support frame and other components of the present invention.

[0027] Figure 6 It is a three-dimensional structural schematic diagram of the rotating block, rubber nozzle, guide block and other components of the present invention.

[0028] Figure 7 It is a schematic diagram of the exploded three-dimensional structure of the rubber nozzle, guide block, guide ring and other components of the present invention.

[0029] Figure 8 It is a three-dimensional structural schematic diagram of the components such as the rotating handle, the current limiting block and the rotating shaft of the present invention.

[0030] Fig. 9 It is a three-dimensional structural schematic diagram of the Tesla gas valve, clamping column, compression spring and other components of the present invention.

[0031] Fig.10 It is a three-dimensional structural schematic diagram of components such as the pressing block, elastic component and blocking frame of the present invention.

[0032] Fig.11 It is a three-dimensional structural schematic diagram of the blocking frame, the clamping rod and the limiting clamping frame and other components of the present invention.

[0033] Fig.12 It is a three-dimensional structural schematic diagram of components such as the clamping rod, the elastic sheet and the limit clamping frame of the present invention.

[0034] Fig.13 It is a schematic diagram of the three-dimensional structure of the elastic sheet and the limiting bracket of the present invention.

[0035] Fig.14 It is a three-dimensional structural schematic diagram of the housing, spring, moving plate and other components of the present invention.

[0036] Marked in the figure: 1: hot air blower, 11: spray gun, 12: air guide pipe, 13: connecting pipe, 14: limit block, 15: spray nozzle, 16: rotating blade, 17: support frame, 18: flow limiting plate, 2: rotating block, 21: rubber nozzle, 22: guide block, 23: guide ring, 3: rotating handle, 31: flow limiting block, 32: rotating shaft, 33: Tesla valve, 34: clamping column, 35: compression spring, 4: pressing block, 41: elastic component, 42: blocking frame, 43: clamping rod, 44: limit clamping frame, 45: support plate, 46: elastic sheet, 5: shell, 51: spring, 52: moving plate. DETAILED DESCRIPTION

[0037] The present invention is further described below in conjunction with specific embodiments. It should also be noted that, unless otherwise clearly specified and limited, terms such as: setting, installing, connecting, and connecting should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] Example 1

[0039] A device for drying the adhesive layer on the surface of a substrate for mounting and connecting electronic components, such as Figure 1-Figure 5 As shown, it includes a hot air blower 1, a spray tube 11, an air guide pipe 12, a connecting pipe 13, a limit block 14, a nozzle 15, a rotating blade 16, a support frame 17 and a flow limiting plate 18. The spray tube 11 is clamped on the right front side of the hot air blower 1, and the air guide pipe 12 is fixedly connected and communicated between the spray tube 11 and the top of the hot air blower 1. Four connecting pipes 13 equidistantly distributed around the circumference are fixedly connected to the lower part of the spray tube 11. The inside of the spray tube 11 is fixedly connected to a limit block 14, one end of the connecting pipe 13 is fixedly connected and communicated with the limit block 14, and the other end of the connecting pipe 13 is fixedly connected and communicated with the nozzle 15. A support frame 17 is fixedly connected to the upper side of the limit block 14, and the lower part of the support frame 17 is rotatably connected to the rotating blade 16, and the bottom of the limit block 14 is fixedly connected to the flow limiting plate 18.

[0040] like Figure 1-Figure 4 As shown, the connecting pipe 13 is a metal corrugated hose.

[0041] like Figure 3-Figure 5 As shown, four diversion grooves equidistantly distributed around the circumference are provided in the middle of the limit block 14 .

[0042] When the worker needs to dry and cure the adhesive layer on the substrate, the worker can first remove the spray barrel 11 from the hot air blower 1 and aim the air outlet of the spray barrel 11 at the substrate. At this time, the hot air blower 1 can be started, so that the hot air flow enters the spray barrel 11 through the air guide pipe 12, and most of the hot air flow entering the spray barrel 11 will pass through the middle of the limit block 14 and be ejected, so as to dry and cure the adhesive layer. However, when the hot air flow passes through the limit block 14, it will also drive the rotor 16 to rotate, so as to reduce the flow rate of the hot air flow, and the flow limiting plate 18 will also block part of the hot air flow, so as to prevent the hot air flow from Part of the airflow will enter the corresponding connecting pipe 13 from the four diversion grooves on the limit block 14 and finally be ejected from the nozzle 15, which can not only slow down the flow rate of the hot air flow, but also divert the hot air flow, so that the hot air flow is more dispersed and the adhesive layer on the substrate is prevented from having ripples and wrinkles due to the excessive impact of the hot air flow. The connecting pipe 13 can be twisted and deformed and quickly shaped, so that the direction and spray range of the nozzle 15 can be adjusted according to needs. After the adhesive layer is dried and cured, the hot air blower 1 is turned off first, and then the spray barrel 11 is put back in place.

[0043] Example 2

[0044] On the basis of Example 1, Figure 6 and Figure 7 As shown, it also includes a dispersion mechanism, which is arranged on the nozzle 11. The dispersion mechanism includes a rotating block 2, a rubber nozzle 21, a guide block 22 and a guide ring 23. The guide ring 23 is fixed to the bottom of the nozzle 11. The rubber nozzle 21 is fixed to the bottom of the guide ring 23. The left and right sides of the rubber nozzle 21 are fixed with fixed plates. The front and rear sides of the rubber nozzle 21 are fixed with guide blocks 22. The guide ring 23 is rotatably connected to the rotating block 2 on the outside, wherein the lower part of the rotating block 2 is elliptical, and the rotating block 2 is slidably connected to the guide block 22.

[0045] When drying and curing the adhesive layer on the substrate, the rotating block 2 can be rotated 90° counterclockwise first. Since the lower part of the rotating block 2 is elliptical, the rotating block 2 rotates 90° counterclockwise to move the front and rear guide blocks 22 away from each other, thereby stretching the rubber nozzle 21 to the front and rear sides, and the left and right sides of the rubber nozzle 21 will not shrink inward due to the presence of the fixing plate, so that the cross-section of the rubber nozzle 21 is deformed into an elliptical shape, and the cross-sectional area of ​​the rubber nozzle 21 is increased, so that the injection range of the hot air flow can be expanded, so that the hot air flow is more dispersed and its impact on the adhesive layer is weakened. When the adhesive layer is basically cured, the rotating block 2 can be rotated 90° clockwise to reset. At this time, the front and rear guide blocks 22 move toward each other and reset, and the rubber nozzle 21 will return to its original state under the action of its own elasticity.

[0046] like Figure 8 and Fig. 9As shown, a speed regulating mechanism is also included, which is arranged on the spray barrel 11. The speed regulating mechanism includes a rotating handle 3, a flow limiting block 31, a rotating shaft 32, a Tesla gas valve 33, a clamping column 34 and a compression spring 35. The rotating shaft 32 is rotatably connected to the upper part of the spray barrel 11, the rotating shaft 32 is fixedly connected to the rotating handle 3 on the right side, the clamping column 34 is slidably connected to the upper part of the rotating handle 3, a compression spring 35 is fixedly connected between the clamping column 34 and the rotating handle 3, the clamping column 34 is slidably connected to the spray barrel 11, the rotating shaft 32 is fixedly connected to the flow limiting block 31 on the left side, and the flow limiting block 31 is fixedly connected with evenly distributed Tesla gas valves 33.

[0047] like Figure 8 and Fig. 9 As shown, both the front and rear sides of the current limiting block 31 are arc-shaped conical surfaces.

[0048] Normally, the Tesla valve 33 is in a reverse state, which will hinder the airflow and reduce the flow rate of the airflow. Therefore, when the adhesive layer is just beginning to dry and cure, the Tesla valve 33 can decelerate the hot airflow, thereby effectively weakening the impact of the hot airflow on the adhesive layer, thereby preventing the adhesive layer on the substrate from having ripples and wrinkles due to excessive impact of the hot airflow. When the worker needs to restore the flow rate of the hot gas, the clamping column 34 can be moved to the right and separated from the spray gun 11, and the compression spring 35 is then compressed, and then the handle 3, the shaft 32 and the current limiting block 31 and other components are rotated forward. The Tesla valve 33 is moved 180°, thereby changing to a forward state. At this time, the thermal gas flow will no longer be hindered, and the flow rate of the thermal gas flow is immediately restored. At this time, the clamping column 34 is also rotated to correspond to the clamping slot at the lower part of the nozzle 11, so the clamping column 34 will move to the left under the action of the compression spring 35 and insert into the clamping slot, thereby limiting and fixing the positions of the components such as the rotating handle 3, the rotating shaft 32 and the current limiting block 31. When the Tesla valve 33 needs to be restored to a reverse state, the clamping column 34 is first pulled out to the right, and then the components such as the rotating handle 3, the rotating shaft 32 and the current limiting block 31 are reversely rotated 180° to reset.

[0049] like Fig.10 and Fig.13 As shown, a conversion mechanism is also included, which is arranged on the spray barrel 11. The conversion mechanism includes a pressure block 4, an elastic component 41, a blocking frame 42, a clamping rod 43, a limit clamping frame 44, a support plate 45 and an elastic sheet 46. The two support plates 45 are respectively fixed to the front and rear sides of the spray barrel 11. The pressure block 4 is slidably connected between the upper parts of the front and rear support plates 45. The pressure block 4 is squeezed and matched with the flow limiting block 31. The elastic component 41 is fixed between the pressure block 4 and the support plate 45. The blocking frame 42 is fixed to the lower part of the pressure block 4. The blocking frame 42 is in contact with the limit block 14. The left and right sides of the upper part of the blocking frame 42 are rotatably connected with the clamping rod 43. The left and right sides of the spray barrel 11 are fixed to the limit clamping frame 44. The clamping rod 43 is movably connected to the adjacent limit clamping frame 44. The limit clamping frame 44 is fixed with an elastic sheet 46.

[0050] like Fig.10 and Fig.13 As shown, the slide groove provided inside the limiting bracket 44 is in the shape of an inverted concave letter.

[0051] When the Tesla valve 33 is in the reverse state, the blocking frame 42 will not block the ventilation groove in the middle of the limit block 14, and when the glue layer on the substrate is basically solidified, the flow limiting block 31 and the Tesla valve 33 can be rotated 180° in the forward direction, and the flow limiting block 31 will first contact and squeeze the pressure block 4, so that the pressure block 4, the blocking frame 42 and the clamping rod 43 move downward, and the elastic component 41 is immediately compressed, and the clamping rod 43 will move downward to the bottom along the sliding groove on the rear side of the limit clamping frame 44 under the restriction of the elastic sheet 46 during the downward movement. When the flow limiting block 31 is rotated to separate from the pressure block 4, the pressure block 4, the blocking frame 42 and the clamping rod 43 will move slightly upward under the action of the elastic component 41, and make the clamping rod 43 enter the small groove at the bottom of the limit clamping frame 44. At this time, the Tesla valve 33 is in the forward state and will not affect the flow rate of the hot air flow, and the blocking frame 42 will limit the flow of the hot air flow. The ventilation groove in the middle of the limit block 14 is blocked, so that the hot air flow can only enter the connecting pipe 13 through the four small branch grooves of the limit block 14 and finally be ejected from the nozzle 15. Since the overall air outlet of the nozzle 11 is reduced, the flow rate of the hot air flow ejected from the nozzle 15 will increase, so that the flow rate of the hot air flow can be accelerated after the glue layer is basically cured, thereby improving the drying and curing speed of the glue layer. When the flow limiting block 31 and the Tesla valve 33 are rotated 180° in the opposite direction to reset, the flow limiting block 31 will also first contact and squeeze the pressing block 4, so that the pressing block 4, the blocking frame 42 and the clamping rod 43 move slightly downward. At this time, the clamping rod 43 will slide into the sliding groove at the front of the limiting clamping frame 44. When the flow limiting block 31 is rotated to separate from the pressing block 4, the pressing block 4 and the blocking frame 42 and other components will move upward and reset under the action of the elastic component 41, and the clamping rod 43 will slide upward along the sliding groove on the front side of the limiting clamping frame 44 to reset.

[0052] like Figure 1 and Fig.14 As shown, a pressure relief mechanism is also included, which is arranged on the nozzle 11. The pressure relief mechanism includes a shell 5, a spring 51 and a movable plate 52. The shell 5 is fixedly connected to and communicated with the top right side of the nozzle 11. The movable plate 52 is slidably connected inside the shell 5, and a spring 51 is fixedly connected between the movable plate 52 and the shell 5.

[0053] like Figure 1 and Fig.14 As shown, the middle of the shell 5 is provided with pressure relief holes which are evenly distributed around the circumference.

[0054] When the hot air flow in the nozzle 11 gradually accumulates due to being decelerated and obstructed, the air pressure in the nozzle 11 will gradually increase and cause the movable plate 52 to move upward until the movable plate 52 no longer blocks the pressure relief hole, and the spring 51 is immediately compressed. At this time, the hot air flow accumulated in the nozzle 11 will be discharged outward through the pressure relief hole, and the air pressure in the nozzle 11 will drop immediately. The movable plate 52 will move downward under the action of its own gravity and the spring 51 and block the pressure relief hole again. When the air pressure in the nozzle 11 rises again, the movable plate 52 will move upward again. In this cycle, the nozzle 11 and the hot air flow inside it can be depressurized, thereby preventing the nozzle 11 from being damaged or even exploding due to excessive internal air pressure, thereby improving the safety of the device. After turning off the hot air blower 1, the hot air flow in the nozzle 11 will gradually be discharged. At this time, the movable plate 52 will move downward and reset under the action of its own gravity and the spring 51.

[0055] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for drying the adhesive layer on the surface of a substrate for mounting and connecting electronic components, comprising a hot air blower (1), a spray barrel (11) and an air guide pipe (12), wherein the hot air blower (1) is clamped with the spray barrel (11), and the spray barrel (11) and the hot air blower (1) are fixedly connected and communicated with the air guide pipe (12), characterized in that: It also includes a connecting pipe (13), a limiting block (14), a nozzle (15), a rotating blade (16), a support frame (17) and a flow limiting plate (18); the nozzle barrel (11) is fixedly connected to the connecting pipes (13) which are equidistantly distributed around the circumference; the nozzle barrel (11) is fixedly connected to the limiting block (14); one end of the connecting pipe (13) is fixedly connected to and communicates with the limiting block (14); the other end of the connecting pipe (13) is fixedly connected to and communicates with the nozzle (15); the limiting block (14) is fixedly connected to the support frame (17); the supporting frame (17) is rotatably connected to the rotating blade (16); and the limiting block (14) is fixedly connected to the flow limiting plate (18); The connecting pipe (13) is a metal corrugated hose; The limit block (14) is provided with diversion grooves which are evenly spaced around the circumference; The device also includes a dispersion mechanism, which is arranged on the spray barrel (11), and includes a rotating block (2), a rubber nozzle (21), a guide block (22) and a guide ring (23). The guide ring (23) is fixedly connected to the spray barrel (11), the guide ring (23) is fixedly connected to the rubber nozzle (21), the rubber nozzle (21) is fixedly connected to a pair of fixed plates, the rubber nozzle (21) is fixedly connected to a pair of guide blocks (22), and the guide ring (23) is rotatably connected to the rotating block (2), wherein the rotating block (2) is elliptical, and the rotating block (2) is slidably connected to the guide block (22); The invention also comprises a speed regulating mechanism, which is arranged on the spray barrel (11). The speed regulating mechanism comprises a rotating handle (3), a flow limiting block (31), a rotating shaft (32), a Tesla gas valve (33), a clamping column (34) and a compression spring (35). The rotating shaft (32) is rotatably connected to the spray barrel (11). The rotating shaft (32) is fixedly connected to the rotating handle (3). The rotating handle (3) is slidably connected to the clamping column (34). A compression spring (35) is fixedly connected between the clamping column (34) and the rotating handle (3). The clamping column (34) is slidably connected to the spray barrel (11). The rotating shaft (32) is fixedly connected to the flow limiting block (31). The flow limiting block (31) is fixedly connected to evenly distributed Tesla gas valves (33).

2. The device for drying the adhesive layer on the surface of a substrate for mounting and connecting electronic components as claimed in claim 1, characterized in that: The current limiting block (31) has arc-shaped conical surfaces on both sides.

3. The device for drying the adhesive layer on the surface of a substrate for mounting and connecting electronic components as claimed in claim 2, characterized in that: The invention also comprises a conversion mechanism, which is arranged on the spray barrel (11). The conversion mechanism comprises a pressure block (4), an elastic component (41), a blocking frame (42), a clamping rod (43), a limit clamping frame (44), a support plate (45) and an elastic sheet (46). The pair of support plates (45) are fixedly connected to the spray barrel (11). The pressure block (4) is slidably connected between the pair of support plates (45). The pressure block (4) and the flow limiting block (31) are pressed and matched. The elastic component (41) is fixedly connected between the pressure block (4) and the support plate (45). The pressure block (4) is fixedly connected to the blocking frame (42). The blocking frame (42) and the limit block (14) are in contact and matched. The blocking frame (42) is rotatably connected to the pair of clamping rods (43). The spray barrel (11) is fixedly connected to the pair of limit clamping frames (44). The clamping rod (43) and the limit clamping frame (44) are movably connected. The limit clamping frame (44) is fixedly connected to the elastic sheet (46).

4. The device for drying the adhesive layer on the surface of a substrate for mounting and connecting electronic components as claimed in claim 3, characterized in that: The slide groove provided on the limit clamping frame (44) is in the shape of an inverted concave letter.

5. The device for drying the adhesive layer on the surface of a substrate for mounting and connecting electronic components as claimed in claim 4, characterized in that: The device also includes a pressure relief mechanism, which is arranged on the spray barrel (11). The pressure relief mechanism includes a housing (5), a spring (51) and a movable plate (52). The housing (5) is fixedly connected to and communicates with the spray barrel (11). The housing (5) is slidably connected to the movable plate (52). The spring (51) is fixedly connected between the movable plate (52) and the housing (5).

6. The device for drying the adhesive layer on the surface of a substrate for mounting and connecting electronic components as claimed in claim 5, characterized in that: The shell (5) is provided with pressure relief holes which are equidistantly distributed around the circumference.

Images