A primer application mechanism and system

Abstract

The utility model relates to a kind of primer coating mechanism and system.Primer coating mechanism includes: bottom plate;Mounting frame is mounted on bottom plate;Primer bottle is mounted on mounting frame and filled with primer liquid inside, one end of primer bottle is provided with liquid outlet, the other end is provided with movable sealing bottom plate;With the liquid outlet connection of primer bottle and for primer liquid is coated on product on primer brush head;And with the sealing bottom plate connection of primer bottle and for prompting its linear movement in primer bottle, including motor, with the output shaft connection of motor screw rod, be set on screw rod and move with its rotation screw rod nut, install on screw rod nut and move with it sliding block, and two ends are respectively with the connection of sliding block and sealing bottom plate connecting rod.Primer coating system includes primer coating mechanism, and primer coating mechanism is mounted on industrial robot.Compared with prior art, the utility model has the advantages that the amount of primer liquid can be accurately controlled.

Description

Technical Field

[0001] This utility model relates to the field of primer coating technology, and in particular to a primer coating mechanism and system. Background Technology

[0002] Currently, to ensure the reliability of adhesive bonding between plastic exterior parts and the vehicle body, a gray primer needs to be applied to the back of the product along the adhesive application path. The key to ensuring coating quality lies in the precise control of the primer flow rate. Existing primer systems mostly use small pressure tanks for supply and peristaltic pump metering, which suffers from low supply accuracy, complex system structure, and high cost. In actual coating processes, defects such as primer breaks and localized build-up often occur, leading to poor adhesion of parts and a decreased yield rate.

[0003] Patent publication number CN109954627A discloses an automotive windshield adhesive coating system. It uses a pre-coating device and a pre-coating robot. The pre-coating robot picks up the glass to be coated and places it under the pre-coating device that dispenses the pre-coating agent. The pre-coating robot then moves the glass to apply the pre-coating agent to the designated position on the glass. The pre-coating robot and the pre-coating device replace manual labor, solving the problems of uneven coating, low efficiency, and health hazards caused by manual labor. However, it does not make further improvements to the control of the amount of adhesive applied.

[0004] Therefore, how to achieve precise control of adhesive dispensing while meeting the coating function requirements has become an urgent problem to be solved. Utility Model Content

[0005] The purpose of this invention is to overcome the defects of the prior art by providing a primer coating mechanism and system that can precisely control the output of the primer liquid.

[0006] The objective of this utility model can be achieved through the following technical solutions:

[0007] In one aspect, this utility model provides a primer coating mechanism, comprising:

[0008] Base plate;

[0009] A mounting frame installed on the base plate;

[0010] A primer bottle, installed on the mounting frame and filled with primer liquid, has an outlet at one end and a movable sealing base plate at the other end.

[0011] A primer brush head connected to the outlet of the primer bottle and used to apply the primer liquid onto the product;

[0012] And a pushing assembly connected to the sealing base plate of the primer bottle and used to push it to move linearly within the primer bottle, including a motor, a lead screw connected to the output shaft of the motor, a lead screw nut disposed on the lead screw and moving with it, a sliding block mounted on the lead screw nut and moving with it, and a connecting rod whose two ends are respectively connected to the sliding block and the sealing base plate.

[0013] Furthermore, an adapter assembly is connected between the liquid outlet and the primer brush head, including:

[0014] The brush head connector is connected to the primer brush head;

[0015] The primer conduit connected to the brush head connector;

[0016] A conduit fixing structure connected to and mounted on the mounting frame for the primer conduit;

[0017] And a connecting pipe with one end connected to the catheter fixing structure and the other end connected to the liquid outlet.

[0018] Furthermore, the connecting pipe is a flexible tube.

[0019] Furthermore, the brush head connector is fixedly connected to the primer brush head, the primer liquid conduit is fixedly connected to the brush head connector, the primer liquid conduit is floatingly connected to the conduit fixing structure, and the exterior of the primer liquid conduit is provided with an adaptive height adjustment spring.

[0020] Furthermore, the brush head connector is threadedly connected to the primer brush head, thereby securing and locking the two together.

[0021] Furthermore, the conduit fixing structure is equipped with a position sensor for detecting whether the primer brush head is installed in place.

[0022] Furthermore, the mounting frame is provided with a guide rail located below the connecting rod. The sliding block is slidably connected to the guide rail and can slide along the guide rail, so that the sliding block has the guiding function of the guide rail when moving, ensuring the movement direction and stability of the sealing base plate, thereby enabling the sealing base plate to move linearly, reducing the offset, and avoiding inaccurate liquid output of the primer.

[0023] Furthermore, the guide rail is connected to the mounting frame via a guide rail fixing base plate.

[0024] Furthermore, the primer bottle is connected to the mounting frame via a primer bottle fixing base plate, and the primer bottle is detachably and fixedly connected to the primer bottle fixing base plate via several first locking components.

[0025] Furthermore, the first locking element includes at least two parts, which are respectively disposed at both ends of the primer bottle to restrict the position of the primer bottle, so that the primer bottle does not shake or move when the sealing base plate moves, thus preventing the problem of unstable dispensing of the primer liquid.

[0026] Furthermore, the sliding block and the connecting rod are detachably and fixedly connected by a second locking member, so that the sealing base plate does not shake or move when it moves, thus preventing the problem of unstable dispensing of the primer liquid.

[0027] Furthermore, the first locking element and the second locking element adopt a mechanical locking method.

[0028] Furthermore, the first locking member includes a first base, a first locking cap rotatably connected to one side of the first base and used to lock the primer bottle, and a first bolt connecting the first base and the first locking cap.

[0029] Furthermore, a fixed shaft is provided between the first base and the first locking cover to achieve a rotatable connection.

[0030] Furthermore, the second locking member includes a second base, a second locking cover located above the second base and used to lock the connecting rod, and a second bolt connecting the second base and the second locking cover.

[0031] Furthermore, a reducer is provided between the motor and the lead screw. Through the cooperation of the motor and the reducer, the displacement accuracy can be controlled within 1%, which greatly improves the control of the amount of primer liquid discharged.

[0032] Furthermore, the sealing base plate is a boss-type plug structure.

[0033] Furthermore, the motor is a servo motor.

[0034] Furthermore, the mounting frame is formed by connecting several reinforcing plates, including rectangular reinforcing plates and / or triangular reinforcing plates.

[0035] Furthermore, the working principle of the primer coating mechanism is as follows:

[0036] The motor drives the lead screw to rotate, which in turn causes the lead screw nut to move linearly, thereby causing the sliding block to move linearly. This causes the sealing base plate, which is connected to the sliding block via a connecting rod, to move linearly within the primer bottle, thereby squeezing the primer liquid through the outlet to the primer brush head and applying it to the primer path that needs to be coated on the product.

[0037] On the other hand, the present invention also provides a primer coating system, which includes the primer coating mechanism and an industrial robot, wherein the primer coating mechanism is mounted on the industrial robot.

[0038] Furthermore, the industrial robot includes:

[0039] The robot itself;

[0040] The robot gun disc is connected to the robot body;

[0041] A robot gripping gun disc structure connected to the robot gun disc, wherein the base plate is connected to the robot gripping gun disc structure.

[0042] Furthermore, the industrial robot is a six-axis robot, which can control the base coat brush head to tilt at any angle and adapt to complex trajectories such as curved surfaces and grooves.

[0043] Furthermore, the working principle of the primer application system is as follows:

[0044] The motor drives the lead screw to rotate, causing the lead screw nut to move linearly, which in turn causes the sliding block to move linearly. This allows the sealing base plate, connected to the sliding block via a connecting rod, to move linearly within the primer bottle, thereby squeezing the primer liquid through the outlet to the primer brush head and applying it to the primer trajectory required for the product. The industrial robot can drive the primer brush head of the primer coating mechanism to tilt at any angle to adapt to complex trajectories such as curved surfaces and grooves.

[0045] Compared with the prior art, the present invention has the following advantages:

[0046] (1) The primer coating mechanism of this utility model uses a motor and a lead screw to form a pushing assembly. The motor itself has extremely high position and speed control accuracy, and the rotational motion of the lead screw is converted into high-precision linear displacement through the nut. The linear displacement of the lead screw and nut is strictly linearly proportional to the number of rotations of the motor. Therefore, by precisely controlling the rotation angle of the motor, the pushing displacement of the sealing base plate can be controlled extremely precisely. Since the cross-sectional area of ​​the primer bottle is fixed, the pushing displacement directly and linearly determines the volume of the extruded primer liquid. Traditional peristaltic pumps rely on the elastic deformation of the hose to transport fluid, and their accuracy is greatly affected by hose wear, aging, and pressure changes, resulting in inherent pulsation and accuracy decay problems. The mechanical direct pushing method of this utility model eliminates these intermediate variables, realizes open-loop or closed-loop digital volume control, and fundamentally solves the defects such as "primer breakpoints and local accumulation".

[0047] (2) Based on the motor and lead screw, this utility model further increases the torque through a reducer to drive the lead screw to rotate, which further improves the accuracy of linear displacement and ensures the accuracy of the amount of primer liquid discharged.

[0048] (3) The core moving parts of this utility model are a motor, a lead screw, a lead screw nut, and a sliding block, which constitute a very classic, reliable, and mature linear module. It eliminates a series of complex components such as pressure tanks, air pressure regulating devices, peristaltic pump heads, and peristaltic pump hoses in traditional primer coating mechanisms, thereby reducing manufacturing costs and assembly complexity, and improving the long-term reliability and stability of the primer coating mechanism.

[0049] (4) This utility model provides a solid guide for the propulsion action by sliding the sliding block and the high-precision guide rail, preventing any lateral deviation or shaking, and ensuring that the sealing base plate moves strictly in a straight line. At least two first locking members firmly fix the primer bottle to the primer bottle fixing base plate to prevent bottle shaking; the second locking member rigidly connects the connecting rod to the sliding block to prevent movement at the connection point. All degrees of freedom of the sealing base plate are eliminated, allowing it to only perform a preset straight-line movement. Any slight shaking or movement will translate into fluctuations in the amount of adhesive dispensed. This utility model completely eliminates this hidden danger through the above structure, providing an important structural guarantee for achieving high-precision control.

[0050] (5) In this utility model, the primer liquid conduit and the conduit fixing structure adopt a floating connection and are equipped with an adaptive height adjustment spring. When the product surface is uneven or the robot trajectory has a slight deviation, the spring allows the primer brush head to float within a certain range, always maintaining a constant contact force and optimal contact angle with the product surface. This avoids the problem of the primer brush head being forcibly lifted, causing glue breakage, or excessive pressing causing glue accumulation. Combined with high-precision glue dispensing control, this ensures the uniformity and continuity of the coating trajectory.

[0051] (5) In the primer coating system of this invention, the speed of the industrial robot driving the coating mechanism may change frequently. The rigid push structure of this invention enables the control of the glue dispensing amount to respond instantly to the robot's speed command. When the robot accelerates, the motor accelerates synchronously, immediately increasing the glue dispensing amount; the same applies when decelerating. This avoids the delay in pressure build-up and release present in pneumatic systems, as well as the lag problem caused by the return of deformation of the peristaltic pump hose, ensuring real-time synchronization between glue dispensing and the robot's motion trajectory.

[0052] (6) The primer coating mechanism of this utility model is a complete and functionally independent module that can be easily mounted on an industrial robot. The combination of the flexible motion capability of the industrial robot and the high-precision glue dispensing capability of the primer coating mechanism enables the system to perfectly handle the coating tasks of complex three-dimensional trajectories such as curved surfaces and grooves on products such as automotive exterior parts, and its application range is extremely wide.

[0053] (7) By installing the frame, the entire pushing component is set below the primer bottle, which greatly saves the space of the entire primer coating mechanism and avoids path interference from industrial robots or other structures.

[0054] (8) The first and second locking parts of this utility model adopt mechanical locking, which has a reliable structure and high positioning accuracy, thus avoiding the instability of the primer coating liquid. Attached Figure Description

[0055] Figure 1 This is a schematic diagram of the primer coating mechanism shown in Example 7;

[0056] Figure 2 This is a schematic diagram of the motor and lead screw shown in Example 7;

[0057] Figure 3 This is a schematic diagram of the adapter assembly shown in Example 7;

[0058] Figure 4 This is a schematic diagram of the structure of the pushing component shown in Example 7;

[0059] Figure 5 This is a schematic diagram of the guide rail structure shown in Example 7;

[0060] Figure 6 This is a schematic diagram of the structure of the first and second locking components shown in Embodiment 7;

[0061] Figure 7 This is an enlarged schematic diagram of the first locking member shown in Embodiment 7;

[0062] Figure 8 This is an enlarged schematic diagram of the second locking member shown in Embodiment 7;

[0063] Figure 9 This is a schematic diagram of the installation frame shown in Example 7;

[0064] Figure 10 This is a schematic diagram of the primer coating system shown in Example 9;

[0065] Figure 11 This is a schematic diagram of the structure of the industrial robot shown in Example 9;

[0066] Figure 12 This is a schematic diagram of the primer application mechanism shown in Example 7 during primer liquid back-suction.

[0067] Explanation of markings in the diagram:

[0068] 1-Base plate;

[0069] 2-Mounting frame, 21-Rectangular reinforcing plate, 22-Triangular reinforcing plate;

[0070] 3-Primer bottle, 31-Dispenser, 32-Sealing base plate, 33-Primer bottle fixing base plate, 34-First locking element, 341-First base, 342-First locking cover, 343-First bolt, 344-Fixing shaft, 35-Second locking element, 351-Second base, 352-Second locking cover, 353-Second bolt;

[0071] 4- Primer brush head;

[0072] 5-Push assembly, 51-Motor, 52-Lead screw, 53-Lead screw nut, 54-Sliding block, 55-Connecting rod, 56-Guide rail, 57-Reducer, 58-Guide rail fixing base plate;

[0073] 6-Adapter assembly, 61-Primer conduit, 62-Conduit fixing structure, 63-Connecting tube, 64-Spring, 65-Position sensor, 66-Brush head connector;

[0074] 7-Industrial robot, 71-Robot body, 72-Robot gripper disc, 73-Robot gripping gripper disc structure. Detailed Implementation

[0075] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The embodiments are implemented based on the technical solution of the present invention, providing detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments. In the following embodiments or examples, unless otherwise specified, the functional components or structures are conventional components or structures used in the art to achieve the corresponding functions.

[0076] It should be noted that in the description of this utility model, the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0077] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0078] A primer application mechanism, comprising:

[0079] Base plate 1;

[0080] Mounting frame 2 is mounted on the base plate 1;

[0081] A primer bottle 3, which is installed on the mounting frame 2 and is filled with primer liquid, has an outlet 31 at one end and a movable sealing base plate 32 at the other end.

[0082] A primer brush head 4 is connected to the outlet 31 of the primer bottle 3 and is used to apply the primer liquid to the product;

[0083] And a pushing assembly 5 connected to the sealing base plate 32 of the primer bottle 3 and used to push it to move linearly within the primer bottle 3, including a motor 51, a lead screw 52 connected to the output shaft of the motor 51, a lead screw nut 53 disposed on the lead screw 52 and moving with it, a sliding block 54 mounted on the lead screw nut 53 and moving with it, and a connecting rod 55 whose two ends are respectively connected to the sliding block 54 and the sealing base plate 32.

[0084] In some specific embodiments, an adapter component 6 is connected between the liquid outlet 31 and the primer brush head 4, including:

[0085] Brush head connector 66 connected to the primer brush head 4;

[0086] The primer conduit 61 is connected to the brush head connector 66;

[0087] A conduit fixing structure 62 is connected to the primer conduit 61 and installed on the mounting frame 2;

[0088] And a connecting pipe 62, one end of which is connected to the catheter fixing structure 62 and the other end of which is connected to the liquid outlet 31.

[0089] In some specific embodiments, the connecting pipe 62 is a flexible hose.

[0090] In some specific embodiments, the brush head connector 66 is fixedly connected to the primer brush head 4, the primer liquid conduit 61 is fixedly connected to the brush head connector 66, the primer liquid conduit 61 is floatingly connected to the conduit fixing structure 62, and the exterior of the primer liquid conduit 61 is provided with an adaptive height adjustment spring 64.

[0091] In some specific embodiments, the brush head connector 66 is threadedly connected to the primer brush head, so that the two are fixed and locked.

[0092] In some specific embodiments, the conduit fixing structure 62 is provided with a position sensor 65 for detecting whether the primer brush head 4 is installed in place.

[0093] In some specific embodiments, the mounting frame 2 is provided with a guide rail 56 located below the connecting rod 55. The sliding block 54 is slidably connected to the guide rail 56 and can slide along the guide rail 56, so that the sliding block 54 has the guiding function of the guide rail 56 when moving, ensuring the movement direction and stability of the sealing base plate 32, thereby enabling the sealing base plate 32 to move linearly, reducing the offset, and avoiding inaccurate liquid output of the primer.

[0094] In some specific embodiments, the guide rail 56 is connected to the mounting frame 2 via a guide rail fixing base plate 58.

[0095] In some specific embodiments, the primer bottle 3 is connected to the mounting frame 2 via a primer bottle fixing base plate 33, and the primer bottle 3 and the primer bottle fixing base plate 33 are detachably and fixedly connected by a plurality of first locking members 34.

[0096] In some specific embodiments, the first locking member 34 includes at least two members, which are respectively disposed at both ends of the primer bottle 3 to restrict the position of the primer bottle 3, so that the primer bottle 3 does not shake or move when the sealing base plate 32 moves, thus preventing the problem of unstable dispensing of primer liquid.

[0097] In some specific embodiments, the sliding block 54 and the connecting rod 55 are detachably and fixedly connected by the second locking member 35, so that the sealing base plate 32 does not shake or move when it moves, thus preventing the problem of unstable dispensing of the primer liquid.

[0098] In some specific embodiments, the first locking member and the second locking member adopt a mechanical locking method.

[0099] In some specific embodiments, the first locking member 34 includes a first base 341, a first locking cap 342 rotatably connected to one side of the first base 341 and used to lock the base coat bottle 3, and a first bolt 343 connecting the first base 341 and the first locking cap 342.

[0100] In some specific embodiments, a fixed shaft 344 is provided between the first base 341 and the first locking cover 342 to achieve a rotatable connection.

[0101] In some specific embodiments, the second locking member 35 includes a second base 351, a second locking cover 352 located above the second base 351 and used to lock the connecting rod 55, and a second bolt 353 connecting the second base 351 and the second locking cover 352.

[0102] In some specific embodiments, a reducer 57 is provided between the motor 51 and the lead screw 52. Through the cooperation of the motor 51 and the reducer 57, the displacement accuracy can be controlled within 1%, which greatly improves the control of the amount of primer liquid discharged.

[0103] In some specific embodiments, the sealing base plate 32 is a boss-type plug structure.

[0104] In some specific embodiments, the motor 51 is a servo motor.

[0105] In some specific embodiments, the mounting frame 2 is formed by connecting several reinforcing plates, the reinforcing plates including rectangular reinforcing plates 21 and / or triangular reinforcing plates 22.

[0106] In some specific embodiments, the working principle of the primer coating mechanism is as follows:

[0107] The motor 51 drives the lead screw 52 to rotate, which in turn drives the lead screw nut 53 to move linearly, thereby driving the sliding block 54 to move linearly. This causes the sealing base plate 32, which is connected to the sliding block 54 via the connecting rod 55, to move linearly within the primer bottle 3, thereby squeezing the primer liquid through the outlet 31 to the primer brush head 4 and coating it onto the primer trajectory that needs to be coated on the product.

[0108] A primer coating system includes the aforementioned primer coating mechanism and an industrial robot 7, wherein the primer coating mechanism is mounted on the industrial robot 7.

[0109] In some specific embodiments, the industrial robot 7 includes:

[0110] Robot body 71;

[0111] Robot gun plate 72 connected to the robot body 71;

[0112] The robot gripping gun disk structure 73 is connected to the robot gun disk 72, and the base plate 1 is connected to the robot gripping gun disk structure 73.

[0113] In some specific embodiments, the industrial robot 7 is a six-axis robot that can control the base coat brush head 4 to tilt at any angle and adapt to complex trajectories such as curved surfaces and grooves.

[0114] In some specific embodiments, the working principle of the primer application system is as follows:

[0115] The motor 51 drives the lead screw 52 to rotate, which in turn drives the lead screw nut 53 to move linearly, thereby driving the sliding block 54 to move linearly. This causes the sealing base plate 32, which is connected to the sliding block 54 via the connecting rod 55, to move linearly within the primer bottle 3. As a result, the primer liquid is squeezed out through the outlet 31 to the primer brush head 4 and coated onto the primer trajectory that needs to be coated on the product. The primer brush head 4 of the primer coating mechanism can be tilted at any angle by the industrial robot 7 to adapt to complex trajectories such as curved surfaces and grooves.

[0116] Each of the above embodiments can be implemented individually or in any combination of two or more.

[0117] The following description uses specific examples to illustrate the point.

[0118] Example 1

[0119] A primer application mechanism, comprising:

[0120] Base plate 1;

[0121] Mounting frame 2 is mounted on the base plate 1;

[0122] A primer bottle 3, which is installed on the mounting frame 2 and is filled with primer liquid, has an outlet 31 at one end and a movable sealing base plate 32 at the other end.

[0123] A primer brush head 4 is connected to the outlet 31 of the primer bottle 3 and is used to apply the primer liquid to the product;

[0124] And a pushing assembly 5 connected to the sealing base plate 32 of the primer bottle 3 and used to push it to move linearly within the primer bottle 3, including a motor 51, a lead screw 52 connected to the output shaft of the motor 51, a lead screw nut 53 disposed on the lead screw 52 and moving with it, a sliding block 54 mounted on the lead screw nut 53 and moving with it, and a connecting rod 55 whose two ends are respectively connected to the sliding block 54 and the sealing base plate 32.

[0125] In this embodiment, an adapter component 6 is connected between the liquid outlet 31 and the primer brush head 4, including:

[0126] The primer liquid conduit 61 is connected to the primer brush head 4;

[0127] A conduit fixing structure 62 is connected to the primer conduit 61 and installed on the mounting frame 2;

[0128] And a connecting pipe 62, one end of which is connected to the catheter fixing structure 62 and the other end of which is connected to the liquid outlet 31.

[0129] In this embodiment, the connecting pipe 62 is a flexible hose.

[0130] In this embodiment, the primer liquid conduit 61 is threadedly connected to the primer brush head 4, so that the two are fixed and locked.

[0131] In this embodiment, an adapter component 6 is connected between the liquid outlet 31 and the primer brush head 4, including:

[0132] Brush head connector 66 connected to the primer brush head 4;

[0133] The primer conduit 61 is connected to the brush head connector 66;

[0134] A conduit fixing structure 62 is connected to the primer conduit 61 and installed on the mounting frame 2;

[0135] And a connecting pipe 62, one end of which is connected to the catheter fixing structure 62 and the other end of which is connected to the liquid outlet 31.

[0136] In this embodiment, the connecting pipe 62 is a flexible hose.

[0137] In this embodiment, the brush head connector 66 is threadedly connected to the primer brush head, so that the two are fixed and locked.

[0138] In this embodiment, the primer bottle 3 is connected to the mounting frame 2 via a primer bottle fixing base plate 33, and the primer bottle 3 and the primer bottle fixing base plate 33 are detachably and fixedly connected by a plurality of first locking members 34.

[0139] In this embodiment, the first locking member 34 includes two parts, which are respectively disposed at both ends of the primer bottle 3 to restrict the position of the primer bottle 3, so that the primer bottle 3 does not shake or move when the sealing base plate 32 moves, thus preventing the problem of unstable dispensing of primer liquid.

[0140] In this embodiment, the sliding block 54 and the connecting rod 55 are detachably and fixedly connected by the second locking member 35, so that the sealing base plate 32 does not shake or move when it moves, thus preventing the problem of unstable dispensing of the primer liquid.

[0141] In this embodiment, the first locking member and the second locking member adopt a mechanical locking method.

[0142] In this embodiment, the first locking member 34 includes a first base 341, a first locking cap 342 rotatably connected to one side of the first base 341 and used to lock the base coating bottle 3, and a first bolt 343 connecting the first base 341 and the first locking cap 342.

[0143] In this embodiment, a fixed shaft 344 is provided between the first base 341 and the first locking cover 342 to achieve a rotatable connection. The first bolt 343 is used to lock and unlock the first locking cover 342 and the first base 341, so that when unlocked, the first locking cover 342 can be rotated open via the fixed shaft 344. This embodiment has two first locking members 34, one of which has one bolt 343, and the other has two bolts 343.

[0144] In this embodiment, the first base 341 and the first locking cap 342 are also provided with grooves for placing the primer bottle 3.

[0145] In this embodiment, the second locking member 35 includes a second base 351, a second locking cover 352 located above the second base 351 and used to lock the connecting rod 55, and a second bolt 353 connecting the second base 351 and the second locking cover 352. The second bolt 353 enables the locking and unlocking of the second locking cover 352 and the second base 351, so that when unlocked, the first locking cover 342 separates from the second base 351.

[0146] In this embodiment, the second base 351 and the second locking cover 352 are also provided with grooves for placing the connecting rod 55.

[0147] In this embodiment, the sealing base plate 32 is a boss-type plug structure.

[0148] In this embodiment, the motor 51 is a servo motor.

[0149] In this embodiment, the working principle of the primer coating mechanism is as follows:

[0150] The motor 51 drives the lead screw 52 to rotate, which in turn drives the lead screw nut 53 to move linearly, thereby driving the sliding block 54 to move linearly. This causes the sealing base plate 32, which is connected to the sliding block 54 via the connecting rod 55, to move linearly within the primer bottle 3, thereby squeezing the primer liquid through the outlet 31 to the primer brush head 4 and coating it onto the primer trajectory that needs to be coated on the product.

[0151] Example 2

[0152] This embodiment is based on Embodiment 1. The brush head connector 66 is fixedly connected to the primer brush head 4, and the primer liquid conduit 61 is fixedly connected to the brush head connector 66. The primer liquid conduit 61 is floatingly connected to the conduit fixing structure 62, and an adaptive height adjustment spring 64 is provided on the outside of the primer liquid conduit 61. When the product surface is uneven or the robot trajectory has slight deviations, the spring allows the primer brush head 4 to float within a certain range, always maintaining a constant contact force and optimal contact angle with the product surface. This avoids the problem of the primer brush head 4 being forcibly lifted, causing glue breakage, or being over-pressed, causing glue accumulation. Combined with high-precision glue dispensing control, this ensures the uniformity and continuity of the coating trajectory.

[0153] Example 3

[0154] This embodiment is based on embodiment 1 and includes a position sensor 65 for detecting whether the primer brush head 4 is installed in place. The position sensor 65 is a laser sensor, model E3F-LDM8P.

[0155] In this embodiment, the primer coating mechanism further includes a controller and an alarm, wherein the controller is controlled by a PLC.

[0156] In this embodiment, the controller is connected to the position sensor 65 and the alarm. When the position sensor 65 detects that the primer brush head 4 is not installed in place, it transmits a signal to the controller, which then controls the alarm to sound an alarm and remind the operator to make adjustments.

[0157] Example 4

[0158] This embodiment is based on embodiment 1. The mounting frame 2 is provided with a guide rail 56 located below the connecting rod 55. The sliding block 54 is slidably connected to the guide rail 56 and can slide along the guide rail 56, so that the sliding block 54 has the guiding function of the guide rail 56 when moving, ensuring the movement direction and stability of the sealing base plate 32, thereby allowing the sealing base plate 32 to move linearly, reducing the offset, and avoiding inaccurate liquid output of the primer.

[0159] In this embodiment, the guide rail 56 is connected to the mounting frame 2 via the guide rail fixing base plate 58.

[0160] Example 5

[0161] This embodiment is based on embodiment 1. A reducer 57 is provided between the motor 51 and the lead screw 52. Through the cooperation of the motor 51 and the reducer 57, the displacement accuracy can be controlled within 1%, which greatly improves the control of the amount of primer liquid discharged.

[0162] Example 6

[0163] This embodiment is based on embodiment 1. The mounting frame 2 is formed by connecting several reinforcing plates, including rectangular reinforcing plates 21 and triangular reinforcing plates 22.

[0164] Example 7

[0165] like Figure 1 and 2 As shown, a primer coating mechanism includes:

[0166] Base plate 1;

[0167] Mounting frame 2 is mounted on the base plate 1;

[0168] A primer bottle 3, which is installed on the mounting frame 2 and is filled with primer liquid, has an outlet 31 at one end and a movable sealing base plate 32 at the other end.

[0169] A primer brush head 4 is connected to the outlet 31 of the primer bottle 3 and is used to apply the primer liquid to the product;

[0170] And a pushing assembly 5 connected to the sealing base plate 32 of the primer bottle 3 and used to push it to move linearly within the primer bottle 3, including a motor 51, a lead screw 52 connected to the output shaft of the motor 51, a lead screw nut 53 disposed on the lead screw 52 and moving with it, a sliding block 54 mounted on the lead screw nut 53 and moving with it, and a connecting rod 55 whose two ends are respectively connected to the sliding block 54 and the sealing base plate 32.

[0171] In this embodiment, as Figure 3 As shown, an adapter assembly 6 is connected between the liquid outlet 31 and the primer brush head 4, including:

[0172] Brush head connector 66 connected to the primer brush head 4;

[0173] The primer conduit 61 is connected to the brush head connector 66;

[0174] A conduit fixing structure 62 is connected to the primer conduit 61 and installed on the mounting frame 2;

[0175] And a connecting pipe 62, one end of which is connected to the catheter fixing structure 62 and the other end of which is connected to the liquid outlet 31.

[0176] In this embodiment, the connecting pipe 62 is a flexible hose.

[0177] In this embodiment, the brush head connector 66 is fixedly connected to the primer brush head 4, the primer liquid conduit 61 is fixedly connected to the brush head connector 66, the primer liquid conduit 61 is floatingly connected to the conduit fixing structure 62, and an adaptive height adjustment spring 64 is provided on the outside of the primer liquid conduit 61.

[0178] In this embodiment, the brush head connector 66 is threadedly connected to the primer brush head, so that the two are fixed and locked.

[0179] In this embodiment, the conduit fixing structure 62 is provided with a position sensor 65 for detecting whether the primer brush head 4 is installed in place.

[0180] This embodiment is based on Embodiment 1 and includes a position sensor 65 for detecting whether the primer brush head 4 is properly installed. The position sensor 65 is a laser sensor, model E3F-LDM8P. In this embodiment, the primer coating mechanism also includes a controller and an alarm, and the controller is controlled by a PLC.

[0181] In this embodiment, the controller is connected to the position sensor 65 and the alarm. When the position sensor 65 detects that the primer brush head 4 is not installed in place, it transmits a signal to the controller, which then controls the alarm to sound an alarm and remind the operator to make adjustments.

[0182] In this embodiment, as Figure 4 and 5 As shown, the mounting frame 2 is provided with a guide rail 56 located below the connecting rod 55. The sliding block 54 is slidably connected to the guide rail 56 and can slide along the guide rail 56, so that the sliding block 54 has the guiding function of the guide rail 56 when moving, ensuring the movement direction and stability of the sealing base plate 32, thereby allowing the sealing base plate 32 to move linearly, reducing the offset, and avoiding inaccurate liquid output of the primer.

[0183] In this embodiment, the guide rail 56 is connected to the mounting frame 2 via the guide rail fixing base plate 58.

[0184] In this embodiment, as Figure 6As shown, the primer bottle 3 is connected to the mounting frame 2 via a primer bottle fixing base plate 33, and the primer bottle 3 and the primer bottle fixing base plate 33 are detachably and fixedly connected by a number of first locking parts 34.

[0185] In this embodiment, the first locking member 34 includes at least two members, which are respectively disposed at both ends of the primer bottle 3 to restrict the position of the primer bottle 3, so that the primer bottle 3 does not shake or move when the sealing base plate 32 moves, thus preventing the problem of unstable dispensing of primer liquid.

[0186] In this embodiment, the sliding block 54 and the connecting rod 55 are mechanically locked together by the first locking member and the second locking member.

[0187] In this embodiment, as Figure 7 As shown, the first locking member 34 includes a first base 341, a first locking cap 342 rotatably connected to one side of the first base 341 and used to lock the base coating bottle 3, and a first bolt 343 connecting the first base 341 and the first locking cap 342.

[0188] In this embodiment, a fixed shaft 344 is provided between the first base 341 and the first locking cover 342 to achieve a rotatable connection. The first bolt 343 is used to lock and unlock the first locking cover 342 and the first base 341, so that when unlocked, the first locking cover 342 can be rotated open through the fixed shaft 344.

[0189] In this embodiment, the first base 341 and the first locking cap 342 are also provided with grooves for placing the primer bottle 3.

[0190] In this embodiment, as Figure 8 As shown, the second locking member 35 includes a second base 351, a second locking cover 352 located above the second base 351 and used to lock the connecting rod 55, and a second bolt 353 connecting the second base 351 and the second locking cover 352. The second bolt 353 enables the locking and unlocking of the second locking cover 352 and the second base 351, so that when unlocked, the first locking cover 342 separates from the second base 351.

[0191] In this embodiment, the second base 351 and the second locking cover 352 are also provided with grooves for placing the connecting rod 55.

[0192] In this embodiment, a reducer 57 is provided between the motor 51 and the lead screw 52. Through the cooperation of the motor 51 and the reducer 57, the displacement accuracy can be controlled within 1%, which greatly improves the control of the amount of primer liquid discharged.

[0193] In this embodiment, the sealing base plate 32 is a boss-type plug structure.

[0194] In this embodiment, the motor 51 is a servo motor.

[0195] In this embodiment, as Figure 9 As shown, the mounting frame 2 is formed by connecting several reinforcing plates, including rectangular reinforcing plates 21 and triangular reinforcing plates 22.

[0196] In this embodiment, the working principle of the primer coating mechanism is as follows:

[0197] The motor 51 drives the lead screw 52 to rotate, causing the lead screw nut 53 to move linearly. This, in turn, causes the sliding block 54 to move linearly along the guide rail 56. This allows the sealing base plate 32, connected to the sliding block 54 via the connecting rod 55, to move linearly within the primer bottle 3. The primer liquid is then extruded through the outlet 31 to the primer brush head 4, coating the product onto the required primer path. When the product surface is uneven or the robot trajectory has slight deviations, the spring allows the primer brush head 4 to float within a certain range, maintaining a constant contact force and optimal contact angle with the product surface. This avoids the problem of the primer brush head 4 being forcibly lifted, leading to glue breakage, or being over-pressed, causing glue accumulation. Combined with high-precision glue dispensing control, this ensures a uniform and continuous coating path.

[0198] When the connecting rod 55 pushes the sealing base plate 32 to a certain position, it indicates that the primer liquid in the primer bottle 3 has been used up. The connecting tube 62 is pulled out from the conduit fixing structure 62, the connecting tube 62 is inserted into a new primer bottle, and the motor 51 is controlled to work in reverse to perform primer liquid back suction.

[0199] When the primer bottle 3 is damaged, the primer bottle 3 can be removed by opening the first locking member 34, a new primer bottle 3 can be replaced, and then the first locking member 34 can be tightened to fix the primer bottle 3.

[0200] Example 8

[0201] A primer coating system includes a primer coating mechanism as described in any of Embodiment 1, and further includes an industrial robot 7, wherein the primer coating mechanism is mounted on the industrial robot 7.

[0202] In this embodiment, the industrial robot 7 includes:

[0203] Robot body 71;

[0204] Robot gun plate 72 connected to the robot body 71;

[0205] The robot gripping gun disk structure 73 is connected to the robot gun disk 72, and the base plate 1 is connected to the robot gripping gun disk structure 73.

[0206] In this embodiment, the industrial robot 7 is a six-axis robot that can control the base coat brush head 4 to tilt at any angle, adapting to complex trajectories such as curved surfaces and grooves.

[0207] In this embodiment, the working principle of the primer application system is as follows:

[0208] The product is in a fixed position. The motor 51 drives the lead screw 52 to rotate, which in turn drives the lead screw nut 53 to move linearly. This, in turn, drives the sliding block 54 to move linearly, so that the sealing base plate 32, which is connected to the sliding block 54 via the connecting rod 55, moves linearly within the base coating bottle 3. This causes the base coating liquid to be squeezed out through the outlet 31 to the base coating brush head 4 and coated onto the base coating trajectory that needs to be coated on the product. The industrial robot 7 can drive the base coating brush head 4 of the base coating mechanism to tilt at any angle to adapt to complex trajectories such as curved surfaces and grooves.

[0209] Example 9

[0210] A primer application system, such as Figure 10 As shown, it includes the primer coating mechanism described in any of Embodiment 7, and also includes an industrial robot 7, wherein the primer coating mechanism is mounted on the industrial robot 7.

[0211] In this embodiment, as Figure 11 As shown, the industrial robot 7 includes:

[0212] Robot body 71;

[0213] Robot gun plate 72 connected to the robot body 71;

[0214] The robot gripping gun disk structure 73 is connected to the robot gun disk 72, and the base plate 1 is connected to the robot gripping gun disk structure 73.

[0215] In this embodiment, the industrial robot 7 is a six-axis robot that can control the base coat brush head 4 to tilt at any angle, adapting to complex trajectories such as curved surfaces and grooves.

[0216] In this embodiment, the controller is also connected to the industrial robot 7. When the position sensor 65 detects a large deviation between the primer brush head 4 and the product surface, it controls the industrial robot 7 to adjust the position and primer trajectory of the primer brush head 4 to always maintain a constant contact force and optimal contact angle with the product surface.

[0217] In this embodiment, the working principle of the primer application system is as follows:

[0218] The product is positioned in a fixed position. The motor 51 drives the lead screw 52 to rotate, causing the lead screw nut 53 to move linearly. This, in turn, causes the sliding block 54 to move linearly along the guide rail 56. This allows the sealing base plate 32, connected to the sliding block 54 via the connecting rod 55, to move linearly within the primer bottle 3. The primer liquid is then extruded through the outlet 31 to the primer brush head 4, applying it to the primer path required on the product. The industrial robot 7 can tilt the primer brush head 4 at any angle to adapt to complex paths such as curved surfaces and grooves. When the position sensor 65 detects a deviation between the primer brush head 4 and the product surface, it controls the primer brush head 4 to float, maintaining a constant contact force and optimal contact angle with the product surface.

[0219] like Figure 12 As shown, after the primer liquid in the primer bottle 3 is used up, the connecting pipe 62 is pulled out from the conduit fixing structure 62, the industrial robot 7 moves the primer coating mechanism, inserts the connecting pipe 62 into a new primer bottle, and controls the motor 51 to work in reverse to perform primer liquid back suction.

[0220] When the primer bottle 3 is damaged, the primer bottle 3 can be removed by opening the first locking member 34, a new primer bottle 3 can be replaced, and then the first locking member 34 can be tightened to fix the primer bottle 3.

[0221] Although the present invention has been described in detail above with general descriptions, specific embodiments, and experiments, some modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, all such modifications or improvements made without departing from the spirit of the present invention fall within the scope of protection claimed by the present invention.

Claims

1. A primer coating mechanism, characterized in that, include: Base plate (1); Mounting frame (2) mounted on the base plate (1); A primer bottle (3) is installed on the mounting frame (2) and filled with primer liquid. One end of the primer bottle (3) is provided with a liquid outlet (31) and the other end is provided with a movable sealing base plate (32). A primer brush head (4) is connected to the outlet (31) of the primer bottle (3) and used to apply the primer liquid to the product; And a push assembly (5) connected to the sealing base plate (32) of the primer bottle (3) and used to push it to move linearly within the primer bottle (3), including a motor (51), a lead screw (52) connected to the output shaft of the motor (51), a lead screw nut (53) disposed on the lead screw (52) and moving with it, a sliding block (54) mounted on the lead screw nut (53) and moving with it, and a connecting rod (55) whose two ends are respectively connected to the sliding block (54) and the sealing base plate (32).

2. The primer coating mechanism according to claim 1, characterized in that, An adapter assembly (6) is connected between the liquid outlet (31) and the primer brush head (4), comprising: A brush head connector (66) connected to the primer brush head (4); The primer conduit (61) is connected to the brush head connector (66); A conduit fixing structure (62) connected to the primer conduit (61) and installed on the mounting frame (2); And a connecting tube (62) with one end connected to the catheter fixing structure (62) and the other end connected to the liquid outlet (31).

3. The primer coating mechanism according to claim 2, characterized in that, The brush head connector (66) is fixedly connected to the primer brush head (4), the primer liquid conduit (61) is fixedly connected to the brush head connector (66), the primer liquid conduit (61) is floatingly connected to the conduit fixing structure (62), and an adaptive height adjustment spring (64) is provided on the outside of the primer liquid conduit (61).

4. A primer coating mechanism according to claim 2, characterized in that, The conduit fixing structure (62) is provided with a position sensor (65) for detecting whether the primer brush head (4) is installed in place.

5. A primer coating mechanism according to claim 1, characterized in that, The mounting frame (2) is provided with a guide rail (56) located below the connecting rod (55), and the sliding block (54) is slidably connected to the guide rail (56) and can slide along the guide rail (56).

6. A primer coating mechanism according to claim 1, characterized in that, The primer bottle (3) is connected to the mounting frame (2) via a primer bottle fixing base plate (33), and the primer bottle (3) and the primer bottle fixing base plate (33) are detachably and fixedly connected by a number of first locking parts (34).

7. A primer coating mechanism according to claim 1, characterized in that, The sliding block (54) and the connecting rod (55) are detachably and fixedly connected by the second locking member (35).

8. A primer coating mechanism according to claim 1, characterized in that, A speed reducer (57) is provided between the motor (51) and the lead screw (52).

9. A primer application system, characterized in that, It includes the primer coating mechanism according to any one of claims 1 to 8, and also includes an industrial robot (7), wherein the primer coating mechanism is mounted on the industrial robot (7).

10. A primer application system according to claim 9, characterized in that, The industrial robot (7) includes: Robot body (71); Robot gun plate (72) connected to the robot body (71); A robot gripping gun disk structure (73) is connected to the robot gun disk (72), and the base plate (1) is connected to the robot gripping gun disk structure (73).

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