Nozzle switching assembly applied to coating and glue filling integrated device and control method

Abstract

The invention discloses a nozzle switching assembly applied to a coating and glue filling integrated device and a control method, the nozzle switching assembly applied to the coating and glue filling integrated device comprises the coating and glue filling integrated device, and the nozzle switching assembly comprises a nozzle integrated shell connected to a coordinate moving assembly of the coating and glue filling integrated device; the central rotary valve body is rotationally mounted in the nozzle integrated shell; the lifting spray head assembly for coating and the lifting needle head assembly for glue filling are movably arranged in the central rotary valve body in a lifting manner and respectively perform stretching and hiding actions in turn; according to the coating machine with the glue filling function, the linkage assembly is lifted in turn, through the rotary driving and lifting linkage design, automatic and rapid switching of the coating nozzle and the glue filling nozzle is achieved, meanwhile, the machining precision and the material conveying stability are guaranteed, and the actual application effect of the coating machine with the glue filling function is further optimized.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of PCB processing equipment, in particular to a nozzle switching assembly applied to a coating and glue filling integrated device and a control method. BACKGROUND

[0002] In the field of PCB processing, the coating process coats three-proof paint to enhance the environmental resistance of the PCB, and the glue filling process fills and packages to protect components or strengthen insulation. According to the existing technology, the conventional equipment is configured as "one coating machine + one glue filling machine", but this mode has the problems of high idle rate of equipment and large occupation of site, so the coating and glue filling integrated device gradually becomes the development direction of the industry.

[0003] However, the nozzle switching structure of the existing coating and glue filling integrated device has obvious defects: most integrated devices need to move the independent nozzle assembly by the movement platform to realize switching, which not only has long switching path and long time consumption, but also is easy to affect the processing precision due to movement error; some devices need manual assistance to adjust the nozzle, cannot realize automatic switching, and the material conveying is easy to be interrupted during switching. These problems limit the practicality of the integrated device, and the advantage of "one device completing two processes" cannot be fully played, so an efficient and precise automatic nozzle switching scheme is needed.

[0004] Therefore, the existing PCB processing field needs to be further improved. SUMMARY

[0005] The purpose of the present application is to provide a nozzle switching assembly applied to a coating and glue filling integrated device and a control method, to provide a free switching nozzle assembly, to realize automatic and rapid switching of the coating and glue filling nozzles through the design of "rotary drive + lifting linkage", to ensure the processing precision and material conveying stability, and to further optimize the practical application effect of the coating machine with glue filling function.

[0006] In order to achieve the above purpose, the present application adopts the following scheme:

[0007] A nozzle switching assembly applied to a coating and glue filling integrated device, comprising a coating and glue filling integrated device, comprising:

[0008] A nozzle integrated shell connected to the coordinate moving assembly of the coating and glue filling integrated device;

[0009] A center rotary valve body rotatably installed in the nozzle integrated shell;

[0010] A coating lifting nozzle assembly and a glue filling lifting needle assembly, which are movably arranged in the center rotary valve body and respectively perform extension and hiding actions alternately;

[0011] Alternately lifting linkage assembly, arranged in the center rotating valve body and connected between the coating lifting nozzle assembly and the glue filling lifting needle assembly;

[0012] Lifting transmission assembly, arranged between the center rotating valve body and the nozzle integrated shell, for converting the rotating motion of the center rotating valve body into the lifting motion of the coating lifting nozzle assembly;

[0013] Valve switching assembly, arranged between the coating lifting nozzle assembly and the glue filling lifting needle assembly;

[0014] Retaining conveying assembly, arranged between the valve switching assembly and the nozzle integrated shell.

[0015] Further, the nozzle integrated shell includes a shell body, a lower opening is arranged below the shell body, a fixing seat for connecting with the coordinate moving assembly is arranged on the shell body, a coating material input interface and a glue filling material input interface are arranged on the shell body.

[0016] Further, the center rotating valve body includes an annular guide groove arranged on the inner wall of the shell body, a rotating ring body is rotatably arranged in the annular guide groove, a rotating valve body is arranged in the rotating ring body, and a driving assembly for driving the rotating valve body to rotate forward and backward is arranged on the shell body.

[0017] Further, the driving assembly includes a motor seat arranged on the inner wall of the shell body, a forward and backward rotating motor is arranged on the motor seat, a driving gear is arranged on the output end of the forward and backward rotating motor, a driven gear is arranged on the circumferential outer wall of the rotating valve body, and the driving gear and the driven gear are in meshing transmission;

[0018] The coating lifting nozzle assembly includes an annular cavity arranged in the rotating valve body, a lifting annular member is movably arranged in the annular cavity, an annular connecting cavity is arranged in the lifting annular member, an annular atomizing nozzle is arranged at the lower end of the lifting annular member, one end of the annular connecting cavity is in communication with the annular cavity, and the other end is in communication with the annular atomizing nozzle.

[0019] Further, the glue filling lifting needle assembly includes a cylindrical cavity arranged at the axis of the rotating valve body, a lifting pipeline is movably arranged in the cylindrical cavity, a glue filling needle is arranged on the lifting pipeline, one end of the lifting pipeline is in communication with the cylindrical cavity, and the other end is in communication with the glue filling needle, and the annular cavity is wrapped around the cylindrical cavity.

[0020] Furthermore, the alternating lifting linkage assembly includes a gear seat disposed between the lifting pipe and the lifting annular component. The gear seat is fixedly connected to the lower end of the rotating valve body. A linkage gear is rotatably mounted on the gear seat. A first rack is disposed on the outer wall of the lifting pipe along the axial direction. A second rack is disposed on the inner wall of the lifting annular component along the axial direction. One side of the linkage gear meshes with the first rack, and the other side meshes with the second rack.

[0021] Furthermore, the lifting transmission assembly includes an annular wall disposed on the inner wall of the nozzle integrated housing, the annular wall being provided with an inclined guide groove, the outer wall of the annular atomizing nozzle being provided with a drive horizontal shaft, the drive horizontal shaft being movably disposed within the inclined guide groove, the outer wall of the lifting annular component being provided with a synchronous guide bar along the axial direction, the annular cavity being provided with a synchronous guide groove, and the synchronous guide bar being movably installed within the synchronous guide groove.

[0022] Furthermore, the valve switching assembly includes a coating material delivery pipe and a glue delivery pipe arranged laterally on the left and right sides of the rotating valve body.

[0023] Furthermore, the holding and conveying assembly includes a fixed outer ring groove and a fixed inner ring groove disposed on the nozzle integrated housing. A rotating outer closing ring is rotatably disposed within the fixed outer ring groove, and a rotating inner closing ring is rotatably disposed within the fixed inner ring groove. An external connecting pipe is disposed on the rotating outer closing ring and communicates with the coating material conveying pipe, and an internal connecting pipe is disposed on the rotating inner closing ring and communicates with the dispensing material conveying pipe. The fixed outer ring groove is connected to the coating material input interface, and the fixed inner ring groove is connected to the dispensing material input interface.

[0024] The external connecting pipe is connected to the fixed outer ring groove;

[0025] The upper end of the inner connecting pipe is connected to the fixed inner ring groove.

[0026] A control method includes the following steps:

[0027] S1: Receive process requirement signals and identify the coating or potting process to be performed.

[0028] S2: Based on the recognition result, the control drive component drives the central rotating valve body to rotate by a preset angle, and simultaneously converts the rotational motion into the lifting motion of the coating lifting nozzle assembly or the dispensing lifting needle assembly through the lifting transmission component, so that the target component extends and the non-target component is hidden.

[0029] S3: Real-time monitoring of the lifting displacement of the target component, when the displacement reaches the preset threshold, the control valve switching component opens the material conveying pipe of the target component and closes the material conveying pipe of the non-target component, while maintaining stable material conveying through the holding conveying component;

[0030] S4: During the process execution, the working state of the feedback component is fed back in real time, and if an abnormality occurs, the control center reverses the valve body to the middle position and closes the two valves.

[0031] In summary, the present application has the following advantages over the prior art:

[0032] The present application solves the problems in the prior art of PCB processing equipment. The structure of the present application has the following advantages: improving the integration and utilization of the equipment, eliminating the need for independent coating or glue filling nozzle components, switching through rotary drive, achieving two processes with one device, further reducing idle rate; saving space and cost, compact structure, reducing the size of the nozzle component, thereby reducing the overall floor area of the coating and glue filling integrated device; reducing the number of driving motors and other components, reducing equipment manufacturing and maintenance costs; optimizing switching efficiency and accuracy, rotating and lifting simultaneously, reducing switching time, and through mechanical structure forced linkage action, meeting the high-precision processing requirements of PCB; improving operation convenience, automatic switching by adjusting the parameters of the forward and reverse motors through the control system, without manual intervention, reducing the labor intensity of the operator; integrating coating and glue filling functions in one device, avoiding space interference between the two components during work, one extension and one retraction lifting cooperation, without additional component moving track or manual position adjustment, only through lifting action to complete non-interference switching, switching from rotary motion to linear motion to reduce the space occupied by the direct push rod motor. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a perspective view of the present application;

[0034] Figure 2 is a schematic view of the internal structure of the present application;

[0035] Figure 3 is a schematic view of the coating lifting nozzle assembly of the present application;

[0036] Figure 4 is a schematic view of the glue filling lifting needle assembly of the present application;

[0037] Figure 5 is a sectional view of the internal structure of the present application;

[0038] Figure 6 is a partial enlarged view of A of the present application; Figure 5 ​

[0039] Figure 7 Fig. 1 is a schematic view of a central rotary valve body structure of the present application;

[0040] Figure 8 Fig. 2 is another schematic view of a central rotary valve body structure of the present application. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0042] Please refer to Figures 1-8 The present application provides a nozzle switching assembly applied to a coating and glue filling integrated device, comprising a coating and glue filling integrated device, comprising:

[0043] A nozzle integrated shell 1 is connected to a coordinate moving assembly of the coating and glue filling integrated device;

[0044] A central rotary valve body 2 is rotatably installed inside the nozzle integrated shell 1;

[0045] A coating lifting nozzle assembly 3 and a glue filling lifting needle assembly 4 are movably arranged in the central rotary valve body 2, and perform extension and hiding actions alternately and respectively;

[0046] An alternating lifting linkage assembly 5 is arranged in the central rotary valve body 2 and connected between the coating lifting nozzle assembly 3 and the glue filling lifting needle assembly 4;

[0047] A lifting transmission assembly 6 is arranged between the central rotary valve body 2 and the nozzle integrated shell 1, and is used for converting the rotary motion of the central rotary valve body 2 into the lifting motion of the coating lifting nozzle assembly 3;

[0048] A valve switching assembly 7 is arranged between the coating lifting nozzle assembly 3 and the glue filling lifting needle assembly 4, and automatically opens the delivery of the corresponding assembly when the coating lifting nozzle assembly 3 or the glue filling lifting needle assembly 4 is extended, and automatically closes the delivery pipe of the corresponding assembly when the coating lifting nozzle assembly 3 or the glue filling lifting needle assembly 4 is hidden;

[0049] The keeping conveying assembly 8 is arranged between the valve switching assembly 7 and the nozzle integrated shell 1, and can still convey external materials to the central rotary valve body 2 in the case of angular rotation of the central rotary valve body 2; the switching from rotary motion to linear motion can reduce the stroke occupation space of the direct push rod motor, and if the direct push rod motor is used, the motor needs to be installed close to the nozzle assembly, and in the process of execution, the spraying paint may be splashed, the glue may be overflowed, the viscous material is easy to adhere to the surface of the push rod to cause jamming, the corrosive material may corrode the motor terminal, and the motor short circuit or damage is caused, which seriously affects the reliability of the equipment.

[0050] The nozzle integrated shell 1 provides a mounting base for the whole assembly and is connected with the coordinate moving assembly; the central rotary valve body 2 rotates in the shell and serves as a mounting carrier of the two types of lifting assemblies; the coating lifting nozzle assembly 3 and the glue lifting needle assembly 4 are lifted in the valve body and are connected with the “one extension and one contraction” through the turn-by-turn lifting linkage assembly 5; the lifting transmission assembly 6 converts the rotary motion of the valve body into lifting motion; the valve switching assembly 7 automatically opens and closes the material conveying with the assembly lifting; and the keeping conveying assembly 8 ensures that the material conveying is not interrupted when the valve body rotates, so that the free switching of the two types of assemblies is realized.

[0051] The nozzle integrated shell 1 comprises a shell body 101, a lower opening 102 is arranged below the shell body 101, a fixing seat 103 for connecting with the coordinate moving assembly is arranged on the shell body 101, and a coating material input interface 104 and a glue material input interface 105 are arranged on the shell body 101; the shell body 101 of the nozzle integrated shell 1 provides a mounting space, the lower opening 102 is used for extending / retracting the assembly; the fixing seat 103 is fixed with the coordinate moving assembly; the coating material input interface 104 and the glue material input interface 105 are respectively connected with external coating and glue materials, so as to provide a raw material channel for subsequent processes.

[0052] The central rotary valve body 2 comprises an annular guide groove 201 arranged on the inner wall of the shell body 101, a rotary ring body 202 is arranged in the annular guide groove 201 and rotates, a rotary valve body 203 is arranged in the rotary ring body 202, and a driving assembly 204 for driving the rotary valve body 203 to rotate in opposite directions is arranged on the shell body 101; the annular guide groove 201 of the central rotary valve body 2 guides the rotary ring body 202 to rotate in the circumferential direction; the rotary ring body 202 drives the rotary valve body 203 to rotate synchronously; and the driving assembly 204 drives the rotary valve body 203 to rotate in opposite directions, so as to provide rotary power for the position switching of the two types of lifting assemblies.

[0053] The driving assembly 204 comprises a motor base 2041 arranged on the inner wall of the shell body 101, a forward-reverse motor 2042 arranged on the motor base 2041, a driving gear 2043 arranged at the output end of the forward-reverse motor 2042, a driven gear 2044 arranged on the circumferential outer wall of the rotating valve body 203, and the driving gear 2043 and the driven gear 2044 are in meshing transmission.

[0054] The coating lifting nozzle assembly 3 comprises a ring-shaped cavity 301 arranged in the rotating valve body 203, a lifting ring-shaped part 302 arranged in the ring-shaped cavity 301 and moving up and down, a ring-shaped connecting cavity 303 arranged in the lifting ring-shaped part 302, and a ring-shaped atomizing nozzle 304 arranged at the lower end of the lifting ring-shaped part 302.

[0055] The glue filling lifting needle head assembly 4 comprises a cylindrical cavity 401 arranged at the shaft center of the rotating valve body 203, a lifting pipeline 402 arranged in the cylindrical cavity 401 and moving up and down, a glue filling needle head 403 arranged on the lifting pipeline 402, one end of the lifting pipeline 402 being in communication with the cylindrical cavity 401 and the other end being in communication with the glue filling needle head 403, and the ring-shaped cavity 301 wrapping the cylindrical cavity 401.

[0056] The wheel rotation lifting linkage assembly 5 comprises a gear base 501 arranged between the lifting pipe 402 and the lifting ring 302, the gear base 501 is fixedly connected with the lower end of the rotary valve body 203, a linkage gear 502 is rotatably arranged on the gear base 501, the outer wall of the lifting pipe 402 is provided with a first rack 503 in the axial direction, the inner wall of the lifting ring 302 is provided with a second rack 504 in the axial direction, one side of the linkage gear 502 is engaged with the first rack 503, and the other side is engaged with the second rack 504.

[0057] The lifting transmission assembly 6 comprises an annular wall 601 arranged on the inner wall of the nozzle integrated shell 1, a diagonal guide groove 602 is arranged on the annular wall 601, a driving horizontal shaft 603 is arranged on the outer wall of the annular atomizing nozzle 304, the driving horizontal shaft 603 is movably arranged in the diagonal guide groove 602, a synchronous guide strip 604 is arranged on the outer wall of the lifting ring 302 in the axial direction, a synchronous guide groove 605 is arranged on the annular cavity 301, and the synchronous guide strip 604 is movably arranged in the synchronous guide groove 605.

[0058] In the lifting transmission assembly 6, the diagonal guide groove 602 on the annular wall 601 cooperates with the driving horizontal shaft 603 of the annular atomizing nozzle 304; the synchronous guide strip 604 cooperates with the synchronous guide groove 605 to ensure that the lifting ring 302 rotates synchronously with the rotary valve body 203, and the driving horizontal shaft 603 slides along the diagonal guide groove 602, so that the rotary motion is converted into the lifting motion of the lifting ring 302.

[0059] The valve switching assembly 7 comprises a coating material conveying pipe 701 and a glue filling conveying pipe 702 which are transversely arranged on the left and right sides of the rotary valve body 203; the coating material conveying pipe 701 is communicated with the annular cavity 301 and can be cut off through the outer wall of the lifting ring 302, and the glue filling conveying pipe 702 is communicated with the cylindrical cavity 401 and can be cut off through the outer wall of the lifting pipe 402.

[0060] When the annular atomizing nozzle 304 moves upward, the coating material delivery pipe 701 is closed by the outer wall of the lifting annular part 302, the annular cavity 301 is disconnected, and the coating material delivery is stopped;

[0061] When the glue filling needle 403 moves upward, the glue delivery pipe 702 is closed by the outer wall of the lifting pipe 402, the cylindrical cavity 401 is disconnected, and the glue material delivery is stopped;

[0062] In the valve switching assembly 7, the coating material delivery pipe 701 and the glue delivery pipe 702 respectively deliver coating and glue materials; when the annular atomizing nozzle 304 moves upward, the coating material delivery pipe 701 is closed by the outer wall of the lifting annular part 302; when the glue filling needle 403 moves upward, the glue delivery pipe 702 is closed by the outer wall of the lifting pipe 402, so that the material delivery is automatically connected and disconnected.

[0063] The holding delivery assembly 8 includes a fixed outer ring groove 801 and a fixed inner ring groove 802 arranged on the nozzle integrated housing 1, the fixed outer ring groove 801 is rotatably arranged with a rotating outer closing ring 803, the fixed inner ring groove 802 is rotatably arranged with a rotating inner closing ring 804, the rotating outer closing ring 803 is arranged with an outer connecting pipe 805 in communication with the coating material delivery pipe 701, and the rotating inner closing ring 804 is arranged with an inner connecting pipe 806 in communication with the glue delivery pipe 702; the fixed outer ring groove 801 is in communication with the coating material input interface 104, and the fixed inner ring groove 802 is in communication with the glue material input interface 105; the fixed outer ring groove 801 and the fixed inner ring groove 802 of the holding delivery assembly 8 respectively store coating and glue materials; the rotating outer closing ring 803 and the rotating inner closing ring 804 rotate with the valve body, and the materials are respectively delivered from the fixed ring groove to the coating material delivery pipe 701 and the glue delivery pipe 702 through the outer connecting pipe 805 and the inner connecting pipe 806, so that the material delivery is continuous when the valve body rotates.

[0064] The outer connecting pipe 805 is connected to the fixed outer ring groove 801;

[0065] The inner connecting pipe 806 is connected to the fixed inner ring groove 802.

[0066] A control method, comprising the following steps:

[0067] S1: receiving a process requirement signal, identifying a coating process or a glue filling process to be currently executed;

[0068] S2: based on the identification result, control the driving assembly 204 to drive the center rotating valve body 2 to rotate a preset angle, and synchronously convert the rotating motion into the lifting motion of the coating lifting nozzle assembly 3 or the glue filling lifting needle assembly 4 through the lifting transmission assembly 6, so that the target assembly is extended and the non-target assembly is hidden;

[0069] S3: real-time monitoring of the lifting displacement of the target assembly, when the displacement reaches a preset threshold, control the valve switching assembly 7 to open the material delivery pipe of the target assembly and close the material delivery pipe of the non-target assembly, and simultaneously maintain stable material delivery through the holding delivery assembly 8;

[0070] S4: during the process execution, real-time feedback of the working state of the assembly, if an abnormality occurs, control the center rotating valve body 2 to rotate reversely to the intermediate position and close the two valves.

[0071] The basic principles and main features of the present application and the advantages of the present application are shown and described above, and those skilled in the art should understand that the present application is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application, and various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A nozzle switching assembly for use in a coating and adhesive dispensing integrated device, comprising a coating and adhesive dispensing integrated device, characterized in that, The utility model relates to a nozzle integrated shell (1) is connected on the coordinate moving assembly of coating and glue filling integrated device, the center rotary valve body (2) is rotatably installed in the nozzle integrated shell (1) inside, coating and glue filling are used lift the nozzle group (3) and lift the needle head group (4) of component, and lift the activity setting in the center rotary valve body (2) inside, respectively round -robin carry out the action of extension and hiding, round -robin lift linkage assembly (5) are set up in the center rotary valve body (2) and are connected between coating and glue filling are used lift the nozzle group (3) and lift the needle head group (4) of component, lift transmission assembly (6) are set up between the center rotary valve body (2) and the nozzle integrated shell (1), for the rotary motion of center rotary valve body (2) rotation motion is converted into the lift motion of coating and glue filling are used lift the nozzle group (3), valve switching assembly (7) are set up between coating and glue filling are used lift the nozzle group (3) and lift the needle head group (4) of component, keep conveying assembly (8) are set up between the valve switching assembly (7) and nozzle integrated shell (1). The nozzle integrated shell (1) includes a shell body (101), a lower opening (102) is arranged below the shell body (101), a fixing seat (103) for connecting with the coordinate moving assembly is arranged on the shell body (101), a coating material input interface (104) and a glue filling material input interface (105) are arranged on the shell body (101). The center rotary valve body (2) includes an annular guide groove (201) arranged on the inner wall of the shell body (101), a rotary ring body (202) is rotatably arranged in the annular guide groove (201), a rotary valve body (203) is arranged in the rotary ring body (202), and a driving assembly (204) for driving the rotary valve body (203) to rotate forward and backward is arranged on the shell body (101). The driving assembly (204) includes a motor seat (2041) arranged on the inner wall of the shell body (101), a forward and backward rotating motor (2042) is arranged on the motor seat (2041), a driving gear (2043) is arranged at the output end of the forward and backward rotating motor (2042), a driven gear (2044) is arranged on the circumferential outer wall of the rotary valve body (203), and the driving gear (2043) and the driven gear (2044) are in meshing transmission. The coating and glue filling are used lift the nozzle group (3) and lift the needle head group (4) of component, the annular cavity (301) is arranged in the rotary valve body (203), the lift annular part (302) is movably arranged in the annular cavity (301), the annular connecting cavity (303) is arranged in the lift annular part (302), the annular atomizing nozzle (304) is arranged at the lower end of the lift annular part (302), one end of the annular connecting cavity (303) is communicated with the annular cavity (301), and the other end is communicated with the annular atomizing nozzle (304). ​ ​ ​ 2. The nozzle switching assembly for use in a coating and glue filling integrated apparatus according to claim 1, wherein: ​ 3. The nozzle switching assembly for use in a coating and glue filling integrated apparatus according to claim 2, wherein: ​ 4. The nozzle switching assembly for use in a coating and glue filling integrated apparatus according to claim 3, wherein: ​ 5. The nozzle switching assembly for use in a coating and glue filling integrated apparatus according to claim 4, wherein: ​ The glue filling lifting needle head assembly (4) comprises a cylindrical cavity (401) arranged at the shaft center of the rotary valve body (203), a lifting pipeline (402) movably arranged in the cylindrical cavity (401), a glue filling needle head (403) arranged at the lifting pipeline (402), one end of the lifting pipeline (402) in communication with the cylindrical cavity (401), and the other end in communication with the glue filling needle head (403), and the annular cavity (301) wrapped in the cylindrical cavity (401).

6. The nozzle switching assembly for use in a coating and glue filling integrated apparatus according to claim 5, wherein: The wheel lifting linkage assembly (5) comprises a gear seat (501) arranged between the lifting pipeline (402) and the lifting annular part (302), the gear seat (501) fixedly connected with the lower end of the rotary valve body (203), the linkage gear (502) rotatably arranged on the gear seat (501), the first rack (503) arranged on the outer wall of the lifting pipeline (402) in the axial direction, the second rack (504) arranged on the inner wall of the lifting annular part (302) in the axial direction, the linkage gear (502) meshed with the first rack (503) on one side and meshed with the second rack (504) on the other side.

7. The nozzle switching assembly for use in a coating and glue dispensing integrated apparatus according to claim 6, wherein: The lifting transmission assembly (6) comprises an annular wall (601) arranged on the inner wall of the nozzle integrated shell (1), the oblique guide groove (602) arranged on the upper cover of the annular wall (601), the driving horizontal shaft (603) arranged on the outer wall of the annular atomizing nozzle (304), the driving horizontal shaft (603) movably arranged in the oblique guide groove (602), the synchronous guide strip (604) arranged on the outer wall of the lifting annular part (302) in the axial direction, the synchronous guide groove (605) arranged on the annular cavity (301), and the synchronous guide strip (604) movably arranged in the synchronous guide groove (605).

8. The nozzle switching assembly for use in a coating and glue filling integrated apparatus according to claim 7, wherein: The valve switching assembly (7) comprises a coating material delivery pipe (701) and a glue filling delivery pipe (702) transversely arranged on the left and right sides of the rotary valve body (203), the coating material delivery pipe (701) in communication with the annular cavity (301) and capable of being cut off by the outer wall of the lifting annular part (302), and the glue filling delivery pipe (702) in communication with the cylindrical cavity (401) and capable of being cut off by the outer wall of the lifting pipeline (402).

9. The nozzle switching assembly for use in a coating and glue filling integrated apparatus according to claim 8, wherein: The holding delivery assembly (8) comprises a fixed outer ring groove (801) and a fixed inner ring groove (802) arranged on the nozzle integrated shell (1), a rotating outer closed ring (803) is arranged in the fixed outer ring groove (801) in rotation, a rotating inner closed ring (804) is arranged in the fixed inner ring groove (802) in rotation, an outer connecting pipe (805) is arranged on the rotating outer closed ring (803) and is in communication with the coating material delivery pipe (701), an inner connecting pipe (806) is arranged on the rotating inner closed ring (804) and is in communication with the glue filling delivery pipe (702); the fixed outer ring groove (801) is in communication with the coating material input interface (104), and the fixed inner ring groove (802) is in communication with the glue filling material input interface (105); The outer connecting pipe (805) is connected to the fixed outer ring groove (801); The inner connecting pipe (806) is connected to the fixed inner ring groove (802) at the upper end.

10. A control method comprising the nozzle switching assembly of any one of claims 1-9, characterized by: The method comprises the following steps: S1: receiving a process requirement signal, identifying the coating process or the glue filling process to be executed at present; S2: based on the identification result, controlling the driving assembly (204) to drive the center rotating valve body (2) to rotate by a preset angle, synchronously converting the rotating motion into the lifting motion of the coating lifting nozzle assembly (3) or the glue filling lifting needle assembly (4) through the lifting transmission assembly (6), so that the target assembly is extended and the non-target assembly is hidden; S3: real-time monitoring of the lifting displacement of the target assembly, when the displacement reaches a preset threshold, controlling the valve switching assembly (7) to open the material delivery pipe of the target assembly and to close the material delivery pipe of the non-target assembly, and simultaneously maintaining stable material delivery through the holding delivery assembly (8); S4: during the process execution, real-time feedback of the assembly working state, if an abnormality occurs, controlling the center rotating valve body (2) to rotate reversely to the middle position and to close the two valves.

Images