Image recognition system and leak-preventing nozzle

Abstract

The present application relates to the technical field of paint spraying, and particularly relates to an image recognition system and a nozzle capable of preventing liquid leakage, which comprises a bearing assembly and a blockage prevention assembly, wherein the bearing assembly comprises a middle cylinder, a diffusion cylinder arranged at one end of the middle cylinder and communicated with the middle cylinder, a contact plate arranged in the middle cylinder, a first spraying channel integrally formed on an end face of the contact plate, a backflow channel penetratingly arranged on the end face of the contact plate, and a backflow cavity arranged on an inner wall of the middle cylinder and communicated with the backflow channel; and the blockage prevention assembly comprises a connecting ring movably arranged in the backflow channel and a backflow ring arranged at one end of the connecting ring; the backflow ring of the nozzle is movable, and the output of paint water can also cause the backflow ring to move during the spraying operation, which not only can avoid the paint water from being solidified to block the backflow channel, but also can accelerate the paint water to be collected into the backflow cavity through the backflow channel, so that the problems existing in the prior art are effectively solved.

Description

Technical Field

[0001] This invention relates to the field of spray painting technology, and in particular to an image recognition system and a nozzle for preventing leakage. Background Technology

[0002] Spraying is a coating method that uses a spray gun or disc atomizer to disperse the material into uniform and fine droplets using pressure or centrifugal force, and then applies the mixture to the surface of the object being coated. It can be divided into air spraying, airless spraying, electrostatic spraying, and various derivative methods of these basic spraying forms, such as high-flow-rate low-pressure atomization spraying, thermal spraying, automatic spraying, and multi-group spraying.

[0003] When painting exterior surfaces such as ship hulls and building facades, aerial work platforms are typically used as the spray gun's support platform. However, the height and positioning error of these platforms is usually greater than 100mm, and this error value is difficult to accurately measure in actual operation. After the spray gun completes its first spray stroke, forming a rectangular paint strip of height H and length L, the aerial work platform needs to be lowered by a height H to complete the second spray stroke. Due to the large error of the aerial work platform, the actual lowering height H1 may be greater than H, leading to missed areas. The same principle applies when the spray gun moves horizontally by a distance L.

[0004] Furthermore, existing spray guns typically have a return port to collect the paint dripping from the nozzle during actual use. However, when spraying outdoor surfaces such as ship hulls and building facades, the paint freezes or solidifies at low temperatures due to temperature variations. Different types of paint have different freezing points, but they usually begin to thicken or solidify below freezing. If the return port is integral or fixed, the paint can easily freeze at the return port due to low temperatures. In this case, the paint leaking from the nozzle will flow out and contaminate other areas, which will seriously affect the spraying quality. Summary of the Invention

[0005] In view of the problems existing in the prior art, the image recognition system of the present invention is proposed.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: an image recognition system, comprising a conveyor; a visual scanning device; and a painting robot, including a spray gun; wherein the visual scanning device includes multiple laser sensors and an industrial control computer, the industrial control computer and each laser sensor being connected via Ethernet; the conveyor is equipped with an encoder, the encoder being communicatively connected to the industrial control computer; the painting robot is communicatively connected to a robot controller, the robot controller being connected to the industrial control computer via Ethernet.

[0007] In a preferred embodiment of the image recognition system of the present invention, the plurality of laser sensors are evenly arranged along the same straight line and span over the conveyor.

[0008] In a preferred embodiment of the image recognition system of the present invention, the conveyor is equipped with a motor that drives its movement, and the encoder is mounted on the driven shaft of the motor.

[0009] In a preferred embodiment of the image recognition system of the present invention, the painting robot and the robot controller are connected via an EtherCAT bus.

[0010] In view of the problems existing in the prior art, the present invention also proposes a nozzle to prevent leakage.

[0011] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a nozzle for preventing liquid leakage, comprising, The supporting assembly includes a middle cylinder, a diffuser cylinder disposed at one end of the middle cylinder and communicating with it, an abutment plate disposed inside the middle cylinder, a first spray channel integrally formed on the end face of the abutment plate, a return channel penetrating through the end face of the abutment plate, and a return cavity disposed on the inner wall of the middle cylinder and communicating with the return channel; and, The anti-blocking component includes a connecting ring movably disposed within the return channel and a return ring disposed at one end of the connecting ring; The opening integrally formed on the anti-blocking component is a mating channel.

[0012] As a preferred embodiment of the nozzle for preventing leakage according to the present invention, wherein: the end face of the contact plate is provided with a connecting end that can be adapted to the mating channel, the outer wall of the connecting ring is provided with a guide ring located in the return channel, and the end of the connecting ring is provided with a transmission ring.

[0013] As a preferred embodiment of the nozzle for preventing leakage according to the present invention, a buffer cavity is formed between the middle cylinder and the transmission ring, and an elastic element is provided in the buffer cavity; a buffer slope is provided at the edge of the opening of the transmission ring.

[0014] As a preferred embodiment of the nozzle for preventing leakage according to the present invention, it further includes an output component, wherein the output component includes an output ring rotatably disposed within the middle cylinder, and the output ring has a plurality of output spheres arranged in a circular array at one end near the transmission ring.

[0015] As a preferred embodiment of the nozzle for preventing leakage according to the present invention, a control ring is provided on the other end face of the output ring, and the outer wall of the control ring is screwed with guide vanes in a circumferential array, and a pressure relief through hole is also provided through the outer wall of the control ring. The inner wall of the middle cylinder is provided with a connecting groove, and the outer wall of the output ring is integrally formed with a connecting slip ring that can slide and engage with the connecting groove.

[0016] As a preferred embodiment of the nozzle for preventing leakage according to the present invention, the outer wall of the diffuser tube is provided with a second spraying channel, the outer wall of the middle tube is provided with a drain valve communicating with the return cavity, and a nut sleeve is movably sleeved on one side of the outer wall of the middle tube.

[0017] The beneficial effects of the present invention are as follows: The return ring of the nozzle of the present invention is movable. During the spraying operation, the output of paint will also cause the return ring to move. This not only prevents the paint from solidifying and blocking the return channel, but also accelerates the collection of paint into the return chamber through the return channel, effectively solving the problems existing in the prior art. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention from an "explosion" perspective.

[0020] Figure 3 This is a schematic diagram of the middle cylinder structure in this invention.

[0021] Figure 4 This is a cross-sectional view of the overall structure and an enlarged schematic diagram of some parts of the structure in this invention.

[0022] Figure 5 This is a schematic diagram of the anti-clogging component structure in this invention.

[0023] Figure 6 This is a schematic diagram of the output component structure in this invention. Detailed Implementation

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0027] Example 1 This is the first embodiment of the present invention, which provides an image recognition system.

[0028] Specifically, the system includes a conveyor, a vision scanning device, and a painting robot, including a spray gun. The vision scanning device includes multiple laser sensors and an industrial computer, with the industrial computer and each laser sensor connected via Ethernet. The conveyor is equipped with an encoder, which is communicatively connected to the industrial computer. The painting robot is communicatively connected to a robot controller, which is connected to the industrial computer via Ethernet.

[0029] Preferably, the plurality of laser sensors are evenly arranged along the same straight line and span over the conveyor.

[0030] Preferably, the conveyor is equipped with a motor that drives its movement, and the encoder is mounted on the driven shaft of the motor.

[0031] Preferably, the painting robot and the robot controller are connected via an EtherCAT bus.

[0032] The surface to be coated is scanned by a laser sensor, which then transmits the scanned signal to an industrial control computer. The industrial control computer then controls the coating robot to perform precise coating, ensuring that each coating does not cover the surface and meets the coating quality requirements.

[0033] Example 2 Reference Figures 1-6 This is the second embodiment of the present invention. This embodiment provides a nozzle to prevent leakage. By setting a return ring, the paint can be effectively prevented from solidifying and clogging the return channel.

[0034] Specifically, the supporting component 100 includes a middle cylinder 101, a diffuser cylinder 101a disposed at one end of the middle cylinder 101 and communicating with it, a contact plate 102 disposed inside the middle cylinder 101, a first spraying channel 102b integrally formed on the end face of the contact plate 102, a return channel 102a-1 penetrating through the end face of the contact plate 102, and a return cavity 101b disposed on the inner wall of the middle cylinder 101 and communicating with the return channel 102a-1; and an anti-clogging component 200, including a connecting ring 201 movably disposed in the return channel 102a-1 and a return ring 202 disposed at one end of the connecting ring 201; wherein, the opening integrally formed on the anti-clogging component 200 is a mating channel 201a. Paint is sprayed out through the first spraying channel 102b on the contact plate 102, which is the same as described in the prior art. The difference is that the middle cylinder 101 is specially equipped with a reflux cavity 101b with a cross-section in the shape of the number "7", which improves the reflux collection effect.

[0035] Preferably, the end face of the contact plate 102 is provided with a connecting end 102a that can be adapted to the mating channel 201a. The outer wall of the connecting ring 201 is provided with a guide ring 203 located in the return channel 102a-1, and the end of the connecting ring 201 is provided with a transmission ring 204. The guide ring 203 facilitates the smooth entry of paint into the return cavity 101b. Due to the setting of the connecting end 102a, the return channel 102a-1 forms an open arc rather than a circle. The purpose of this design is to fix the contact plate 102 inside the middle cylinder 101.

[0036] It should be noted that the connecting ring 201 inside the anti-blocking component 200 is movably set in the return channel 102a-1. The entire anti-blocking component 200 must be open, and its opening, which is the matching channel 201a, must be compatible with the connecting end 102a and must not cause structural conflict with it.

[0037] Preferably, a buffer cavity T-1 is formed between the middle cylinder 101 and the transmission ring 204, and an elastic element T is provided in the buffer cavity T-1; a buffer slope 204a is provided at the edge of the opening of the transmission ring 204. The elastic element T is a compression spring, and the buffer slope 204a will be described in the next embodiment. The elastic element T allows the return ring 202 to bounce back and forth.

[0038] In summary, during the spraying operation, the paint will be sprayed out through the first spraying channel 102b on the end face of the contact plate 102, thereby performing the spraying operation. The dripping paint will be guided through the return ring 202 to the return channel 102a-1 and enter the return chamber 101b for collection.

[0039] During this process, the return ring 202 is not fixed. Instead, affected by the paint flow rate, the return ring 202 will bounce back and forth in the return channel 102a-1. One purpose is to prevent the paint from solidifying and blocking the return channel 102a-1 under low temperature conditions. The other purpose is to create a pressure difference to accelerate the paint into the return cavity 101b.

[0040] Example 3 Reference Figures 1-6 This is the third embodiment of the present invention. This embodiment is based on the previous embodiment, but the difference is that it provides a way for the return ring 202 to move.

[0041] Specifically, it also includes an output component 300, which includes an output ring 301 rotatably disposed within the middle cylinder 101, and the output ring 301 has a plurality of output spheres 303 arranged in a circular array at one end near the transmission ring 204. Among them, the output spheres 303 are ball heads, and there is also a ball seat that cooperates with them. The output spheres 303 can rotate at one end of the output ring 301, but cannot be displaced (the prior art has been fully described, and will not be elaborated on further here).

[0042] A control ring 302 is provided on the other end face of the output ring 301, and a guide vane 302a is screwed onto the outer wall of the control ring 302 via a circumferential array. A pressure relief through hole 302b is also provided through the outer wall of the control ring 302. A connecting groove 101c is provided on the inner wall of the middle cylinder 101, and a connecting slip ring 301a is integrally formed on the outer wall of the output ring 301, which can slide and engage with the connecting groove 101c. During the spraying operation, paint with a certain flow rate will contact the guide vane 302a, causing the control ring 302 to rotate. The pressure relief through hole 302b is for better paint flow.

[0043] A second spraying channel 101a-1 is provided through the outer wall of the diffuser cylinder 101a. A drain valve 101b-1 communicating with the return chamber 101b is provided on the outer wall of the middle cylinder 101. A nut sleeve 103 is movably fitted on one side of the outer wall of the middle cylinder 101. The second spraying channel 101a-1 outside the diffuser cylinder 101a can optimize the spraying effect, while the drain valve 101b-1 is used by the operator to collect the paint collected in the return chamber 101b. The nut sleeve 103 allows the nozzle to be connected to the spray gun.

[0044] Specifically, during the spraying operation, the paint with a certain flow rate is directed through the guide vane 302a, causing the control ring 302 to rotate. As described in the above embodiment, a buffer slope 204a is provided at the edge of the opening of the transmission ring 204. The buffer slope 204a will contact the output ball 303. The output ball 303 contacts the transmission ring 204 after passing through the buffer slope 204a, which can apply a certain pressure to the transmission ring 204, causing the anti-blocking component 200 to bounce repeatedly under the force of the elastic element. In other words, the arrangement of the channel 201a can not only be used to conveniently fix the contact plate 102, but also use the output ball 303 as the starting point for applying pressure to the transmission ring 204, thus realizing the movement of the return ring 202.

[0045] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0046] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the currently considered best mode for carrying out the invention, or those features that are not relevant to implementing the invention) may be omitted.

[0047] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0048] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An image recognition system, characterized in that: include, Conveyor; and, Visual scanning equipment; and, Painting robots, including spray guns; The vision scanning device includes multiple laser sensors and an industrial computer, with the industrial computer and each laser sensor connected via Ethernet; the conveyor is equipped with an encoder, which is communicatively connected to the industrial computer; the painting robot is communicatively connected to a robot controller, which is connected to the industrial computer via Ethernet. The system includes a nozzle to prevent leakage, comprising a carrier assembly (100), the carrier assembly (100) including a middle cylinder (101), a diffuser cylinder (101a) disposed at one end of the middle cylinder (101) and communicating therewith, an abutment plate (102) disposed inside the middle cylinder (101), a first spraying channel (102b) integrally formed on the end face of the abutment plate (102), a return channel (102a-1) penetrating through the end face of the abutment plate (102), and a return cavity (101b) disposed on the inner wall of the middle cylinder (101) and communicating with the return channel (102a-1); and, The anti-blocking component (200) includes a connecting ring (201) movably disposed in the return channel (102a-1) and a return ring (202) disposed at one end of the connecting ring (201). The opening integrally formed on the anti-blocking component (200) is a mating channel (201a). The end face of the contact plate (102) is provided with a connecting end (102a) that can be adapted to the mating channel (201a). The outer wall of the connecting ring (201) is provided with a guide ring (203) located in the return channel (102a-1), and the end of the connecting ring (201) is provided with a transmission ring (204). The nozzle also includes an output assembly (300), and the output assembly (300) includes an output ring (301) rotatably disposed within the middle cylinder (101), and the output ring (301) has a plurality of output spheres (303) arranged in a circular array at one end near the transmission ring (204). The other end face of the output ring (301) is provided with a control ring (302), and the outer wall of the control ring (302) is screwed with guide vanes (302a) by a circumferential array. The outer wall of the control ring (302) is also provided with a pressure relief through hole (302b). The inner wall of the middle cylinder (101) is provided with a connecting groove (101c), and the outer wall of the output ring (301) is integrally formed with a connecting slip ring (301a) that can slide with the connecting groove (101c).

2. The image recognition system as described in claim 1, characterized in that: The multiple laser sensors are evenly arranged along the same straight line and span across the top of the conveyor.

3. The image recognition system as described in claim 1, characterized in that: The conveyor is equipped with a motor that drives its movement, and the encoder is mounted on the driven shaft of the motor.

4. The image recognition system as described in claim 1, characterized in that: The painting robot and the robot controller are connected via an EtherCAT bus.

5. The image recognition system as described in claim 1, characterized in that: A buffer cavity (T-1) is formed between the middle cylinder (101) and the transmission ring (204), and an elastic element (T) is provided in the buffer cavity (T-1); a buffer slope (204a) is provided at the edge of the opening of the transmission ring (204).

6. The image recognition system as described in claim 1, characterized in that: The outer wall of the diffuser (101a) is provided with a second spraying channel (101a-1), the outer wall of the middle cylinder (101) is provided with a drain valve (101b-1) that communicates with the return chamber (101b), and a nut sleeve (103) is movably sleeved on one side of the outer wall of the middle cylinder (101).

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