Spraying equipment for mould coating

Abstract

The utility model belongs to mould processing technical field especially relates to mould laminating equipment, the utility model provides a kind of spraying equipment for mould coating, it includes: closed cover;Its surface is provided with visual board, the long hole of transverse extension is opened in the visual board;One movable baffle;It is slidably arranged on the visual board, the round hole is opened in the movable baffle;The diameter of the round hole is less than the width of the long hole, and the overlapping area of the long hole and round hole constitutes operating part, and the remaining part of the long hole is closed by the plate body of the movable baffle and forms closed part;Wherein, movable baffle is configured to move along the long hole extension direction, to drive operating part to move;The utility model is by being provided with a sliding movable baffle on closed cover, eliminates the problem that some areas (such as corner, near inner cavity) of mould cannot be touched due to fixed operating hole position limit, effectively avoids the emergence of operating blind area.

Description

Technical Field

[0001] This utility model belongs to the field of mold processing technology, specifically relating to mold coating equipment, and more particularly to spraying equipment for mold coating. Background Technology

[0002] In the field of mold manufacturing and remanufacturing, applying special functional coatings such as wear-resistant and corrosion-resistant coatings to mold surfaces is a crucial process. For molds with complex structures, unique shapes, or those requiring only localized reinforcement, the precision required for coating operations is extremely high, and currently, manual operation remains heavily relied upon. However, the aerosols and dust generated during the coating process pose significant risks to human health; therefore, effective physical isolation between operators and the hazardous environment must be established.

[0003] In existing technologies, a sealed operating platform with a closed chamber and operating port is often used as a protective measure. Operators extend their arms into the interior through the operating port on the front of the chamber, wear heavy protective gloves, and rely on the negative pressure ventilation system inside the chamber to prevent pollutants from leaking out.

[0004] However, the fixed operating holes severely restrict the range of motion and field of view of the operator's arms, making it impossible to perform precise spraying of the complex surfaces, cavities and narrow areas of the mold without blind spots. This results in a large number of visual blind spots and problems such as uneven spraying or overspraying.

[0005] Therefore, how to avoid the blind spots in operation caused by the operation holes in the closed operating table restricting arm movement is a technical problem that urgently needs to be solved in this field.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0007] This disclosure provides at least one spraying device for mold coating to solve the technical problem that the operation holes in a closed operating table restrict arm movement and create blind spots in operation.

[0008] In a first aspect, embodiments of this disclosure provide a spraying device for mold coating, comprising: a closed cover; a visible panel disposed on its surface, the visible panel having a transversely extending elongated hole; a movable baffle; slidably disposed on the visible panel, the movable baffle having a circular hole; the diameter of the circular hole being smaller than the width of the elongated hole, the overlapping area of ​​the elongated hole and the circular hole constituting an operating part, the remaining portion of the elongated hole being closed by the plate body of the movable baffle to form a closed part; wherein, the movable baffle is configured to move along the extension direction of the elongated hole to drive the operating part to move.

[0009] In one optional embodiment, the inner wall of the viewing panel is provided with a pair of guide rails, and the side of the movable baffle is provided with a slide bar that cooperates with the guide rails.

[0010] In one optional embodiment, an airbag ring is provided at the circular hole; the airbag ring includes: a connecting section connected to the inner wall of the circular hole, one end of the connecting section extending to the outside of the viewing panel; a suspended section connected to the connecting section and extending toward the inside of the enclosure, maintaining a gap with the inner surface of the viewing panel; and a plurality of positioning members evenly distributed on the end face of the suspended section facing the viewing panel; wherein, when the suspended section is configured to be pushed toward the inside of the enclosure, the positioning members abut against the inner surface of the viewing panel to position the operating part.

[0011] In one alternative implementation, the positioning element has anti-slip textures or a micro-suction cup structure.

[0012] In one alternative embodiment, the positioning element is made of rubber or silicone.

[0013] Secondly, embodiments of this disclosure also provide a spraying device for mold coating, comprising: a visible panel having a transversely extending elongated hole on its surface; a movable baffle slidably disposed on the visible panel, the movable baffle having a circular hole, and an airbag ring disposed at the circular hole; the diameter of the circular hole is smaller than the width of the elongated hole, the overlapping area of ​​the elongated hole and the circular hole constitutes an operating part, and the remaining part of the elongated hole is closed by the plate body of the movable baffle to form a closed part; wherein, the movable baffle is configured to move along the extension direction of the elongated hole to drive the operating part to move.

[0014] In one optional embodiment, the inner wall of the viewing panel is provided with a pair of guide rails, and the side of the movable baffle is provided with a slide bar that cooperates with the guide rails.

[0015] In one optional embodiment, the airbag ring includes: a connecting section connected to the inner wall of the circular hole, one end of the connecting section extending to the outside of the viewing panel; a suspended section connected to the connecting section and extending toward the interior of the enclosure, maintaining a gap with the inner surface of the viewing panel; and a plurality of positioning members evenly distributed on the end face of the suspended section toward the viewing panel; wherein, when the suspended section is configured to be pushed toward the interior of the enclosure, the positioning members abut against the inner surface of the viewing panel to position the operating part.

[0016] In one alternative implementation, the positioning element has anti-slip textures or a micro-suction cup structure.

[0017] In one alternative embodiment, the positioning element is made of rubber or silicone.

[0018] The beneficial effect of this utility model is that it provides a spraying device for mold coating. By setting a sliding movable baffle on the closed cover, the operating part can be driven to move continuously in the entire lateral range of the elongated hole, thereby achieving the effect of flexible and adjustable operation window position. This allows the operator to easily aim the spray gun at different working points of the mold, eliminating the problem of not being able to reach certain areas of the mold (such as corners and near the inner cavity) due to the limitation of the fixed operation hole position, and effectively avoiding the occurrence of blind spots in operation.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 A perspective view of a spraying apparatus for mold coating provided in an embodiment of this disclosure; Figure 2 A perspective view of the visible panel and the movable baffle provided in an embodiment of this disclosure; Figure 3 Provided for the embodiments of this disclosure Figure 2 Sectional view along the AA direction; Figure 4 A perspective view of the movable baffle provided in an embodiment of this disclosure; Figure 5 This is a perspective view of the airbag ring provided in an embodiment of this disclosure.

[0023] In the picture: 1. Enclosed enclosure; 2. Visible panel; 21. Elongated hole; 211. Enclosure; 212. Operating section; 22. Guide rail; 3. Movable baffle; 31. Round hole; 32. Sliding bar; 33. Airbag ring; 331. Connecting section; 332. Suspended section; 333. Positioning component. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0026] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0027] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0028] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0029] Research revealed the following drawbacks of existing technologies: they mostly employ enclosed control panels with sealed chambers and operating ports as protective measures. Operators extend their arms through the operating ports on the front of the chamber, wear heavy protective gloves, and rely on the negative pressure ventilation system inside the chamber to prevent contaminants from leaking out.

[0030] However, the fixed operating holes severely restrict the range of motion and field of view of the operator's arms, making it impossible to perform precise spraying of the complex surfaces, cavities and narrow areas of the mold without blind spots. This results in a large number of visual blind spots and problems such as uneven spraying or overspraying.

[0031] Therefore, how to avoid the blind spots in operation caused by the operation holes in the closed operating table restricting arm movement is a technical problem that urgently needs to be solved in this field.

[0032] The shortcomings of the above solutions are the result of the utility model inventor's practice and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as contributions made by the utility model inventor to this disclosure.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0035] like Figures 1 to 4 As shown, some embodiments provide a spraying device for mold coating, including: a closed cover 1; the closed cover 1 is the core component constituting the safety barrier of the entire spraying operation, which can effectively isolate harmful aerosols, dust and chemical mist generated during the spraying process; the closed cover 1 and the base are connected in an airtight manner through a sealing strip to ensure the stability of the internal negative pressure environment; fundamentally avoiding the risk of leakage of harmful substances and protecting the health of operators.

[0036] A viewing panel 2 is provided on the surface of the enclosure 1, and a transversely extending elongated hole 21 is provided on the viewing panel 2. The viewing panel 2 is integrated into the surface of the enclosure 1 and is made of a high-strength transparent material (such as polycarbonate or tempered glass), which can provide a clear internal view. The viewing panel 2 is specially designed, and its size and position are ergonomically optimized to ensure that the operator can obtain the best view and operating comfort. The viewing panel 2 structures and standardizes the opening of the operating area, which is convenient for installing precision components such as movable baffles 3, while ensuring the overall structural strength and sealing integrity of the enclosure 1.

[0037] The elongated hole 21 is a narrow opening extending laterally (usually horizontally, but it can also be vertical or inclined) that is machined into the visible panel 2; its length is much greater than its width, providing the operator's arm with the possibility of a wide range of movement in the horizontal direction; the width of the elongated hole 21 is precisely calculated to allow the operator's forearm and protective gloves to pass through smoothly and operate flexibly, while minimizing the opening area to maintain the efficiency of the negative pressure system; it breaks through the strict limitation of the operating range of traditional fixed round holes and lays the foundation for spraying without dead angles.

[0038] A movable baffle 3; which is slidably mounted on the visible panel 2 (e.g. Figure 2 (Moves in the F1 or F2 direction); The movable baffle 3 has a circular hole 31; The movable baffle 3 is a plate-shaped component that can slide on the surface of the visible panel 2 and can be made of the same material as the visible panel 2; It is the key actuator for realizing the dynamic adjustment of the operating hole; The movable baffle 3 changes the relative position between the circular hole 31 on it and the elongated hole 21 on the visible panel 2 by sliding, thereby dynamically defining the position and size of the actual operating opening.

[0039] By transforming the fixed operating port into a movable one, operators can adjust the position of their arm in real time according to changes in the spraying point, always maintaining the best observation angle and operating posture, which greatly improves the flexibility and accuracy of operation.

[0040] The diameter of the round hole 31 is smaller than the width of the elongated hole 21. The overlapping area of ​​the elongated hole 21 and the round hole 31 constitutes the operating part 212. The remaining part of the elongated hole 21 is closed by the plate of the movable baffle 3 to form the closed part 211. This dimensional relationship is one of the core design points. The function of the round hole 31 is to form a channel that is similar to the contour of the human arm. When it overlaps with a part of the elongated hole 21, it can form an operating channel that is relatively small in size and more in line with the arm, which helps to reduce the open area and improve the sealing effect. At the same time, while providing sufficient operating space, it minimizes the risk of harmful substances spilling out of the operating hole. In addition, the round opening helps to reduce friction with the protective glove and makes the arm move more smoothly.

[0041] The operating section 212 is the actual effective operating channel formed by the overlap of the elongated hole 21 and the round hole 31. The size and shape of this area are fixed (determined by the round hole 31), but its position can continuously change within the entire length of the elongated hole 21 as the movable baffle 3 slides. This achieves the effect of a "moving window," allowing the operator to guide this "window" to any corresponding horizontal position on the mold surface. This enables precise spraying of areas that are difficult to reach by traditional fixed holes, such as the complex contours of the mold, the bottom of deep cavities, or narrow gaps, completely eliminating blind spots and dead angles in the horizontal direction.

[0042] The closed portion 211 refers to the remaining part of the elongated hole 21 that is not covered by the operating portion 212. This part is completely sealed by the opaque plate of the movable baffle 3. It ensures that at any time, the entire elongated hole 21 is sealed except for the operating portion 212 that is in use, effectively preventing contaminants from overflowing through the unused opening area and maintaining a stable negative pressure environment inside the enclosure 1. The movable baffle 3 is configured to move along the extension direction of the elongated hole 21 to drive the operating portion 212 to move.

[0043] The movable baffle 3 is configured to move along the extension direction of the elongated hole 21 to drive the operating part 212 to move. The operator can push the movable baffle 3 directly by hand (or use the arm to make the movable baffle 3 "follow" the arm) according to the needs of the spraying operation, so that it slides smoothly along the trajectory (i.e., horizontal direction) of the elongated hole 21. This action directly drives the circular hole 31 to move, thereby changing the specific position of the operating part 212 on the elongated hole 21. It provides an extremely intuitive and convenient operation method, realizes real-time synchronous tracking of the operating channel position and the spraying point position, makes fine local spraying and complex surface tracking possible, and greatly improves the efficiency of the spraying operation and the consistency of the coating quality.

[0044] A pair of guide rails 22 are provided on the inner wall of the visual panel 2, and a slide bar 32 that cooperates with the guide rails 22 is provided on the side of the movable baffle 3. The guide rails 22 are precision guide mechanisms that are fixedly installed on the inner wall of the visual panel 2. They are made of materials with low coefficient of friction (such as Teflon or stainless steel optical shafts) or embedded with ball bearings. Their function is to precisely constrain the movement trajectory of the movable baffle 3, ensuring that it can only slide smoothly in the preset direction without jumping up and down, tilting back and forth, or detaching. This ensures the stability and smoothness of the movement of the movable baffle 3, reduces unnecessary frictional resistance and wear, extends the service life of the equipment, and also makes the position control of the operating part 212 more precise and reliable.

[0045] The slider 32 is a raised structure set on both sides of the movable baffle 3. Its cross-sectional shape is precisely matched with the groove or track of the guide rail 22. The slider 32 is usually made of self-lubricating material or embedded with ball bearings to further reduce sliding friction. The slider 32 and the guide rail 22 together form a high-precision sliding pair, which transforms the surface contact between the movable baffle 3 and the visible panel 2 into line contact or point contact, greatly reducing sliding resistance and making it easy to push the movable baffle 3 with one hand, thus improving the convenience and experience of operation.

[0046] An airbag ring 33 is provided at the circular hole 31; the airbag ring 33 is an innovative sealing and positioning mechanism installed on the edge of the circular hole 31; it is not a simple rigid ring, but a flexible component with a specific structure and function; its core purpose is to solve the problem of dynamic sealing between the movable operating hole and the operator's arm and the problem of temporary fixation of the position of the operating part 212.

[0047] First, it provides a soft, cushioned interface that better conforms to the operator's arm or protective glove, improving the seal and enhancing comfort. Second, it gives the operating part 212 the ability to be temporarily locked, freeing up the operator's other hand. Finally, its flexibility can adapt to the differences in the size of different operators' arms, making it more versatile.

[0048] The airbag ring 33 includes: a connecting section 331 connected to the inner wall of the circular hole 31, one end of which extends to the outside of the viewing panel 2; a suspended section 332 connected to the connecting section 331 and extending toward the inside of the enclosure 1, maintaining a gap with the inner surface of the viewing panel 2; and a plurality of positioning members 333 evenly distributed on the end face of the suspended section 332 toward the viewing panel 2. When the suspended section 332 is configured to be pushed toward the inside of the enclosure 1, the positioning members 333 abut against the inner surface of the viewing panel 2 to position the operation part 212.

[0049] The connecting section 331 is the part that mechanically connects the airbag ring 33 to the circular hole 31 of the movable baffle 3. It is usually fixed to the inner wall of the circular hole 31 by interference fit, adhesive or mechanical snap-fit. Its structural design ensures the firmness and airtightness of the connection. Its special feature is that a part of the connecting section 331 extends to the outside of the visible panel 2 (i.e., the operator's side). This extension allows the operator to operate the suspended section 332 of the airbag ring 33 directly from the outside of the closed cover 1 (such as inflating, deflating or pushing and pulling) without having to put their hands inside. The operation is very convenient and quick and will not damage the closed environment.

[0050] The suspended section 332 is the main body of the airbag ring 33. It is a cylindrical or skirt-shaped flexible airbag extending from the connecting section 331 into the interior of the enclosure 1. In its natural relaxed state, there is a small gap between the suspended section 332 and the inner surface of the visible panel 2, ensuring that the movable baffle 3 can slide freely without obstruction. Its material is usually elastic rubber or silicone. When positioning is required, the extended suspended section 332 is pushed into the enclosure 1 (it can also be compressed as the arm extends forward, such as...). Figure 5 (in the F3 direction), causing it to undergo elastic deformation, thereby contacting the inner surface of the visible panel 2 and generating friction; this design cleverly transforms a simple push-pull action into a reliable positioning function, with a simple structure and reliable operation.

[0051] Positioning components 333 are micro or macro friction-enhancing structures machined or embedded on the end face of the suspended section 332 (i.e., the surface that contacts the outer surface of the visible panel 2). They are evenly distributed in a circumferential array to ensure that uniform and sufficient friction is generated when in contact with the visible panel 2 at any angle. This significantly increases the static friction between the end face of the suspended section 332 and the smooth inner surface of the visible panel 2, preventing the movable baffle 3 from accidentally shifting due to minor arm movements or equipment vibrations during the spraying operation. This reliably maintains the stability of the position of the operating part 212 and ensures the spraying accuracy.

[0052] Once the operator finds a suitable operating position, they simply need to pinch the outer extension of the connecting section 331 and gently push it towards the inside of the enclosure 1. This action will cause the flexible suspended section 332 to bend, and the positioning element 333 on its end face will press tightly against the smooth inner surface of the viewing panel 2. Relying on the static friction generated by the positioning element 333, the movable baffle 3 is temporarily fixed in this position and will not slide on its own. The whole system realizes a fast, non-destructive, and tool-free "one-click" temporary locking mechanism. When movement is required, simply pull the connecting section 331 outward, the suspended section 332 will disengage, the friction will disappear, and the movable baffle 3 can resume free sliding. This positioning method is a non-rigid connection, which will not cause scratches to the surface of the viewing panel 2 and has a rapid response.

[0053] Positioning component 333 features either anti-slip textures or a micro-suction cup structure. Specifically, positioning component 333 can take the form of finely engraved anti-slip textures (such as grid patterns or diamond patterns) or arrayed micro-vacuum suction cups. Anti-slip textures increase the coefficient of friction by increasing surface roughness; while micro-suction cups expel air under pressure, utilizing atmospheric pressure to generate suction force, resulting in a stronger positioning effect. Positioning component 333 includes diverse and efficient friction-enhancing / adsorption solutions; the anti-slip texture structure is simple and durable; the micro-suction cups provide greater locking force, suitable for environments with high vibration or scenarios requiring more stable positioning; users can choose the most suitable type based on their actual working conditions.

[0054] The positioning element 333 is made of rubber or silicone. The material of the positioning element 333 is selected as a flexible material with high elasticity and high coefficient of friction, such as rubber or silicone. These materials have good anti-slip properties and will not scratch the transparent surface of the viewing panel 2. In addition, on the one hand, it ensures excellent friction or adsorption effect and achieves reliable temporary positioning. On the other hand, the flexible contact protects the optical surface of the viewing panel 2, avoids the generation of scratches, and maintains good visibility. At the same time, these materials are wear-resistant and have a long service life.

[0055] Some embodiments provide a spraying device for mold coating, including: a visible panel 2, the surface of which has a transversely extending elongated hole 21; a movable baffle 3, which is slidably disposed on the visible panel 2, the movable baffle 3 having a circular hole 31, and an airbag ring 33 disposed at the circular hole 31; the diameter of the circular hole 31 is smaller than the width of the elongated hole 21, the overlapping area of ​​the elongated hole 21 and the circular hole 31 constitutes an operating part 212, and the remaining part of the elongated hole 21 is closed by the plate body of the movable baffle 3 to form a closed part 211; wherein, the movable baffle 3 is configured to move along the extending direction of the elongated hole 21 to drive the operating part 212 to move.

[0056] The inner wall of the visible panel 2 is provided with a pair of guide rails 22, and the side of the movable baffle 3 is provided with a slide bar 32 that cooperates with the guide rails 22.

[0057] The airbag ring 33 includes: a connecting section 331 connected to the inner wall of the circular hole 31, one end of which extends to the outside of the viewing panel 2; a suspended section 332 connected to the connecting section 331 and extending toward the inside of the enclosure 1, maintaining a gap with the inner surface of the viewing panel 2; and a plurality of positioning members 333 evenly distributed on the end face of the suspended section 332 toward the viewing panel 2. When the suspended section 332 is configured to be pushed toward the inside of the enclosure 1, the positioning members 333 abut against the inner surface of the viewing panel 2 to position the operation part 212.

[0058] Positioning element 333 features an anti-slip texture or a miniature suction cup structure; the material of positioning element 333 is rubber or silicone.

[0059] Overall workflow: Preparation stage: The operator places the mold to be sprayed on the worktable inside the enclosed cover 1; starts the negative pressure ventilation system to ensure a stable negative pressure environment is formed inside the cover; at this time, the movable baffle 3 may be located at any initial position of the elongated hole 21; Observation and positioning: The operator observes the mold through the transparent enclosure 1 and the viewing panel 2 to determine the starting area to be sprayed; pushes the movable baffle 3 by hand to make it slide smoothly along the guide system composed of the guide rail 22 and the slide bar 32; the movable baffle 3 drives the round hole 31 on it to move, so that the operating part 212 (i.e. the overlapping area of ​​the round hole 31 and the elongated hole 21) moves to the point of alignment with the spraying point; the remaining part of the elongated hole 21 (the closed part 211) is effectively sealed by the plate body of the movable baffle 3; Temporary fixation: After the operating part 212 is moved to the ideal position, the operator pinches the outer extension of the connecting section 331 of the airbag ring 33 and gently pushes it towards the inside of the enclosure 1; this causes the suspended section 332 of the airbag ring 33 to bend elastically, and the positioning parts 333 (rubber anti-slip texture or micro suction cups) evenly distributed on its end face are pressed tightly against the inner surface of the visible panel 2, generating sufficient static friction or adsorption force, thereby temporarily locking the movable baffle 3 in the current position, and stabilizing the position of the operating part 212; Spraying operation: The operator extends his arm through the temporarily fixed operating part 212 into the enclosed cover 1 to perform fine spraying on a specific area of ​​the mold; since the operating part 212 can be precisely aligned with the target area and the operator's field of vision is unobstructed, extremely high spraying accuracy and uniformity can be achieved. Moving and continuous operation: After the current area is finished being sprayed, the operator withdraws the arm; then, the operator gently pulls the connecting section 331 of the airbag ring 33 outward to release the contact between the suspended section 332 and the visible panel 2, and the positioning function disappears; push the movable baffle 3 again to move the operating part 212 to the next area to be sprayed, and repeat steps 3 and 4 to spray; repeat this cycle until the entire complex surface, inner cavity or local area of ​​the mold is sprayed without dead angles. Final stage: After the work is completed, turn off the spraying equipment and ventilation system.

[0060] Overall beneficial effects: By setting a horizontally extending elongated hole 21 and a movable baffle 3 that can slide on it and has a round hole 31, the operation channel is continuously adjustable in the horizontal direction, breaking the limitation of the fixed operation hole on the range of motion. This allows the operator to flexibly adjust the arm insertion position according to the spraying point, and obtains the ability to accurately spray the complex surface of the mold without dead angles, which significantly improves the spraying quality and consistency. By setting up a sliding pair consisting of guide rail 22 and slide bar 32, the movable baffle 3 achieves smooth, precise linear motion, reduces operating resistance, and improves the service life and user experience of the equipment. By setting the airbag ring 33 at the circular hole 31 and including the connecting section 331, the suspended section 332 and the positioning element 333, the operation part 212 position can be quickly, conveniently and non-destructively temporarily locked, so that the movable baffle 3 will not move accidentally when the operator is performing fine spraying, ensuring the stability of the operation process. At the same time, the flexible sealing ring also improves the sealing and comfort of the operator's arm. By forming a closed part 211 with the movable baffle 3 plate body to enclose the unused part of the long hole 21, the sealing of the closed cover 1 except for the operating part 212 is maintained at all times while the position of the operating hole is dynamically adjusted, which effectively prevents the leakage of pollutants and protects the health and safety of the operators. In summary, through the synergistic effect of the above-mentioned features, this spraying equipment successfully solves the technical problem of visual and operational blind spots caused by the fixed operating holes on the enclosed operating table, greatly improving the process level, operational safety, and operational efficiency of partial or full fine spraying of complex molds.

[0061] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0062] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0063] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A spraying device for mold coating, characterized in that, include: A closed cover (1); its surface is provided with a visible panel (2), and the visible panel (2) has a transversely extending elongated hole (21). A movable baffle (3) is slidably disposed on the visible panel (2), and the movable baffle (3) has a circular hole (31). The diameter of the round hole (31) is smaller than the width of the elongated hole (21). The overlapping area of ​​the elongated hole (21) and the round hole (31) constitutes the operating part (212). The remaining part of the elongated hole (21) is closed by the plate of the movable baffle (3) to form a closed part (211). The movable baffle (3) is configured to move along the extension direction of the elongated hole (21) to drive the operating part (212) to move.

2. The spraying equipment as described in claim 1, characterized in that, The inner wall of the visible panel (2) is provided with a pair of guide rails (22), and the side of the movable baffle (3) is provided with a slide bar (32) that cooperates with the guide rails (22).

3. The spraying equipment as described in claim 1, characterized in that, An airbag ring (33) is provided at the circular hole (31); The airbag ring (33) includes: Connecting segment (331); it is connected to the inner wall of the circular hole (31), and one end of the connecting segment (331) extends to the outside of the visible panel (2); The suspended section (332) is connected to the connecting section (331) and extends toward the interior of the enclosure (1), and maintains a gap with the inner surface of the visible panel (2); Several positioning elements (333) are evenly distributed on the end face of the suspended section (332) facing the visible panel (2); When the suspended section (332) is configured to push inward toward the enclosure (1), the positioning member (333) abuts against the inner surface of the visible panel (2) to position the operation part (212).

4. The spraying equipment as described in claim 3, characterized in that, The positioning element (333) has anti-slip texture or a micro suction cup structure.

5. The spraying equipment as described in claim 3 or 4, characterized in that, The positioning element (333) is made of rubber or silicone.

6. A spraying device for mold coating, characterized in that, include: The visible panel (2) has a horizontally extending elongated hole (21) on its surface. A movable baffle (3) is slidably disposed on the visible panel (2). A circular hole (31) is provided on the movable baffle (3), and an airbag ring (33) is provided at the circular hole (31). The diameter of the round hole (31) is smaller than the width of the elongated hole (21). The overlapping area of ​​the elongated hole (21) and the round hole (31) constitutes the operating part (212). The remaining part of the elongated hole (21) is closed by the plate of the movable baffle (3) to form a closed part (211). The movable baffle (3) is configured to move along the extension direction of the elongated hole (21) to drive the operating part (212) to move.

7. The spraying equipment as described in claim 6, characterized in that, The inner wall of the visible panel (2) is provided with a pair of guide rails (22), and the side of the movable baffle (3) is provided with a slide bar (32) that cooperates with the guide rails (22).

8. The spraying equipment as described in claim 6, characterized in that, The airbag ring (33) includes: Connecting segment (331); it is connected to the inner wall of the circular hole (31), and one end of the connecting segment (331) extends to the outside of the visible panel (2); The suspended section (332) is connected to the connecting section (331) and extends toward the interior of the enclosure (1), and maintains a gap with the inner surface of the visible panel (2); Several positioning elements (333) are evenly distributed on the end face of the suspended section (332) facing the visible panel (2); When the suspended section (332) is configured to push inward toward the enclosure (1), the positioning member (333) abuts against the inner surface of the visible panel (2) to position the operation part (212).

9. The spraying equipment as described in claim 8, characterized in that, The positioning element (333) has anti-slip texture or a micro suction cup structure.

10. The spraying equipment as described in claim 9, characterized in that, The positioning element (333) is made of rubber or silicone.

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