Spraying equipment for signboard production

Abstract

This disclosure provides a spraying equipment for sign manufacturing, comprising: a conveyor belt for transporting signs; a spraying device for spraying the surface of the signs; a support frame for supporting the conveyor belt and the spraying device; a drive mechanism for driving the conveyor belt; and a guide rail for guiding the movement of the conveyor belt. The drive mechanism is connected to the drive end of the conveyor belt, the guide rail is disposed on both sides of the conveyor belt, and the spraying device is fixed to the support frame and located above and to the side of the support frame. Two sets of shock-absorbing rollers are symmetrically installed at both ends of the bottom of the conveyor belt, and each set of shock-absorbing rollers is connected to the support frame via a shock-absorbing spring. This disclosure solves the problem of reducing vibration errors during the spraying process of small-sized signs.

Description

Technical Field

[0001] This application relates to the field of sign coating technology, specifically to spraying equipment for sign manufacturing. Background Technology

[0002] Spraying equipment for sign manufacturing is an automated device used to efficiently and evenly spray paint or coatings onto the surface of signs to enable large-scale sign manufacturing. However, a significant technical problem exists when using this equipment: how to reduce vibration errors during the spraying process of small signs. This vibration mainly stems from unstable equipment operation or workpiece fixation, leading to spraying position deviation and uneven coating, thus affecting product quality. Summary of the Invention

[0003] In view of this, the present disclosure provides a spraying equipment for sign manufacturing, which at least partially solves the problems existing in the prior art.

[0004] This application discloses a spraying equipment for manufacturing signage, comprising:

[0005] Conveyor belts are used to transport signs.

[0006] A spraying device used to spray paint the surface of signs;

[0007] A support frame for supporting the conveyor belt and the spraying device;

[0008] A drive mechanism for driving the conveyor belt;

[0009] Guide rails are used to guide the movement of the conveyor belt; wherein...

[0010] The drive mechanism is connected to the drive end of the conveyor belt, the guide rails are arranged on both sides of the conveyor belt, and the spraying device is fixed to the support frame and located above and to the side of the support frame; wherein,

[0011] Two sets of shock-absorbing rollers are symmetrically installed at both ends of the bottom of the conveyor belt, and each set of shock-absorbing rollers is connected to the support frame through a shock-absorbing spring.

[0012] The surface of the conveyor belt is provided with anti-slip protrusions, which are evenly distributed on the upper surface of the conveyor belt.

[0013] Preferably, the shock-absorbing roller includes a rubber outer layer and a metal inner core to provide a dual shock-absorbing effect.

[0014] Preferably, the anti-slip protrusion is a hemispherical protrusion with a height of 2-5mm to enhance anti-slip performance.

[0015] Preferably, the anti-slip protrusions are evenly distributed in a matrix on the three-dimensional surface of the conveyor belt, with a spacing of 10-20mm.

[0016] Preferably, an auxiliary support wheel is provided in the middle of the conveyor belt, and the auxiliary support wheel is fixed to the bottom middle of the conveyor belt to reduce conveyor belt sagging and shaking.

[0017] Preferably, the drive mechanism is connected to the drive end of the conveyor belt via a flexible coupling, which is made of rubber and fixedly connected via a flange.

[0018] Preferably, the support frame is equipped with transverse reinforcing beams to improve overall rigidity.

[0019] Preferably, the conveyor belt is made of a non-slip and wear-resistant material with a thickness of 5-10mm to ensure a smooth surface.

[0020] This disclosure provides a spraying device for sign manufacturing, comprising: a conveyor belt for transporting signs; a spraying device for spraying the surface of the signs; a support frame for supporting the conveyor belt and the spraying device; a drive mechanism for driving the conveyor belt; and a guide rail for guiding the movement of the conveyor belt. The drive mechanism is connected to the drive end of the conveyor belt, the guide rail is disposed on both sides of the conveyor belt, and the spraying device is fixed to the support frame and located above and to the side of the support frame. Two sets of shock-absorbing rollers are symmetrically installed at both ends of the bottom of the conveyor belt, and each set of shock-absorbing rollers is connected to the support frame via a shock-absorbing spring. The surface of the conveyor belt is provided with anti-slip protrusions, which are evenly distributed on the upper surface of the conveyor belt. This disclosure solves the problem of reducing vibration errors during the spraying process of small-sized signs. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the exemplary embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of this utility model from below;

[0024] Figure 3 This is a schematic diagram of the drive mechanism and conveyor belt.

[0025] In the diagram: 1. Conveyor belt; 2. Spraying device; 3. Support frame; 4. Drive mechanism; 5. Guide rail; 11. Shock-absorbing roller; 12. Anti-slip protrusion; 13. Transverse reinforcing beam; 14. Shock-absorbing spring; 15. Rubber outer layer; 16. Metal inner core; 17. Shock-absorbing coating; 18. Auxiliary support wheel; 19. Flexible coupling Detailed Implementation

[0026] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0027] like Figure 1 As shown, the spraying equipment for sign manufacturing in this application includes a conveyor belt 1, a spraying device 2, a support frame 3, a drive mechanism 4, and a guide rail 5.

[0028] Conveyor belt 1, used for transporting signs, is mounted on support frame 3 and constitutes the core conveying component of the equipment. The conveyor belt 1 has shock-absorbing rollers 11 at both ends of its bottom. These rollers utilize elastic materials or buffer mechanisms to reduce vibration during transport. Simultaneously, the upper surface of the conveyor belt 1 is uniformly distributed with anti-slip protrusions 12, made of rubber or polymer materials to increase surface friction. For example, in technical implementation, the shock-absorbing rollers 11 can be designed as an internal spring damping system or a rubber wheel, mounted on the bearing seats of the conveyor belt 1 support to ensure stable operation; the anti-slip protrusions 12 can be formed into regular patterns, such as dot matrix or stripes, through molding or bonding processes to enhance the anti-slip effect.

[0029] The spraying device 2 is used to spray paint the surface of the signboard. It is fixed above or to the side of the support frame 3 to ensure alignment with the signboard on the conveyor belt 1. The device includes a spray gun, nozzles, and a paint supply system, which is connected to the control unit via pipes or cables. For example, in technical implementation, the spraying device 2 can use pneumatic or electrostatic spraying. The spray gun is mounted on an adjustable bracket, and the nozzle controls the paint flow through a solenoid valve to achieve uniform spraying.

[0030] The support frame 3 supports the conveyor belt 1 and the spraying device 2, forming the overall skeleton of the equipment, and is usually located at the bottom or middle of the equipment. This frame is made of metal or high-strength composite materials and has fixed or adjustable support arms to ensure a secure connection between the components. For example, in terms of technical implementation, the support frame 3 can be designed as a modular steel structure, assembled by bolts or welding, with mounting holes on the support arms to facilitate the positioning of the conveyor belt 1 and the spraying device 2.

[0031] The drive mechanism 4 is used to drive the conveyor belt 1. It is connected to the drive end of the conveyor belt 1 and is usually installed on the side or bottom of the support frame 3. This mechanism includes a motor, transmission components, and a control unit, which transmits power mechanically or electronically. For example, in technical implementation, the drive mechanism 4 can use an electric motor with a reduction gear or pulley system. The motor output shaft is connected to the drive roller of the conveyor belt 1 through a coupling, and the control unit can programmably adjust the speed.

[0032] Guide rails 5 are used to guide the movement direction of conveyor belt 1. They are located on both sides of conveyor belt 1 to ensure the straightness and stability of the conveying path. These rails are made of metal or wear-resistant plastic and form continuous channels or roller arrays that mate with the edges of conveyor belt 1. For example, in technical implementation, guide rails 5 can be designed as double-track structures, mounted on the side supports of support frame 3, with rolling bearings or slide rails embedded in the channels to reduce friction and maintain the alignment of conveyor belt 1.

[0033] The features of this application are achieved through the synergistic effect of the shock-absorbing rollers 11 and the anti-slip protrusions 12 on the conveyor belt 1 (see details). Figure 2 This effectively solves the problem of vibration error during the spraying process of small-sized signs. Specifically, shock-absorbing rollers 11 are set at both ends of the bottom of the conveyor belt 1 to absorb and buffer external vibrations (such as the impact generated by the drive mechanism 4) during equipment operation, thereby reducing the positional fluctuation of the signs during the conveying process. At the same time, anti-slip protrusions 12 are evenly distributed on the upper surface of the conveyor belt 1 to increase the friction of the bottom of the signs and prevent small-sized signs from sliding or shifting due to inertia or spraying reaction force. For example, during the spraying stage, the shock-absorbing rollers 11 reduce the overall vibration amplitude through elastic damping, while the anti-slip protrusions 12 provide local gripping force to ensure that the signs are firmly attached to the conveyor belt 1, ultimately improving the spraying accuracy and avoiding uneven spraying or positional errors caused by vibration.

[0034] like Figure 1 As shown, in one embodiment, the shock-absorbing rollers 11 of the spraying equipment for sign manufacturing of this application are symmetrically installed at both ends of the bottom of the conveyor belt 1 to achieve a balanced layout and vibration control. Specifically, this installation position ensures that the shock-absorbing rollers 11 are distributed in the outermost area of ​​the bottom of the conveyor belt 1, thereby providing uniform support force during equipment operation. This symmetrical arrangement helps to counteract lateral vibrations caused by the movement of the conveyor belt 1 and avoids equipment offset or resonance caused by imbalance.

[0035] Furthermore, each damping roller 11 is connected to the support frame 3 via a damping spring 14, forming an elastic connection structure. The damping spring 14 is directly attached to the mounting point of the damping roller 11 and coupled to the corresponding interface of the support frame 3 via a fastener. This connection allows the damping spring 14 to extend and retract in the vertical direction, thereby absorbing the impact energy transmitted by the conveyor belt 1. For example, the damping spring 14 can be a helical compression spring, with its two ends rigidly connected to the base of the damping roller 11 and the bracket of the support frame 3, respectively, ensuring that vibration energy is effectively isolated.

[0036] For example, the shock-absorbing roller 11 may include a central shaft and a wheel structure, which is connected to the fixed bracket of the support frame 3 by a shock-absorbing spring 14. Specifically, the top of the shock-absorbing spring 14 is embedded in the mounting groove of the shock-absorbing roller 11, while the bottom is fixed in the reserved hole of the support frame 3, thereby achieving adjustable elastic support.

[0037] like Figure 3 As shown, in one embodiment, shock-absorbing rollers 11 are disposed at both ends of the bottom of the conveyor belt 1 to reduce vibration during the conveying process. The shock-absorbing roller 11 includes a rubber outer layer 15 and a metal inner core 16, wherein the rubber outer layer 15 covers the outside of the metal inner core 16 to form a composite structure. Specifically, the metal inner core 16 serves as a rigid support component, ensuring the overall strength and stability of the roller; the rubber outer layer 15 absorbs external impacts through its elastic properties, thus working together to optimize shock absorption performance.

[0038] In addition, this dual-layer design aims to provide dual shock absorption, with the metal inner core 16 mainly resisting high-frequency vibrations, while the rubber outer layer 15 absorbs low-frequency impacts. The two complement each other through physical combination, thereby enhancing the stability of the equipment during operation.

[0039] For example, the shock-absorbing roller 11 can be made by injection molding, in which a metal inner core 16 is placed into a mold as a substrate, and then liquid rubber material is injected and cured to form a coating layer, ensuring that the outer layer and the inner core fit tightly to achieve the expected dual shock absorption function.

[0040] like Figure 2 and Figure 3 As shown, in one embodiment, the anti-slip protrusion 12 is designed as a hemispherical structure. This protrusion is disposed on the bearing surface of the conveyor belt 1, specifically to support the upper area of ​​the sign, to achieve uniform distribution. Specifically, the hemispherical protrusion is integrally molded into the surface material of the conveyor belt 1 through a molding process, ensuring its firm adhesion and resistance to detachment, thereby optimizing the surface texture to increase friction. This geometry provides continuous and smooth contact points, preventing sharp edges from damaging the sign, while also promoting stable positioning of the sign through the uniformity of the radius of curvature, making it particularly suitable for the painting process of small-sized signs.

[0041] Furthermore, the height of the anti-slip protrusion 12 is limited to a range of 2 mm to 5 mm, for example, by controlling the molding depth through a precision mold to balance the anti-slip effect with the flatness of the conveyor belt 1. This size range ensures that the protrusion is prominent enough to prevent the sign from sliding, but not so high as to interfere with the movement of the spray nozzle of the spraying device 2 or cause the sign to shift. Specifically, the height parameter is determined based on experimental testing; for example, when the material of the conveyor belt 1 is rubber or polyurethane, this height can effectively resist the effects of inertial forces or vibrations during the spraying process.

[0042] For example, the anti-slip protrusion 12 can be achieved through a hot pressing process during the manufacturing stage of the conveyor belt 1, wherein the substrate of the conveyor belt 1 is placed in a mold with a hemispherical groove, and temperature and pressure are applied to make the material fill the groove to form a protruding structure; alternatively, the pre-made hemispherical rubber pad can also be fixed to the surface of the conveyor belt 1 by bonding or spraying, ensuring that the height tolerance is controlled within ±0.5mm to meet the 2-5mm specification.

[0043] like Figure 1 As shown, in one embodiment, anti-slip protrusions 12 are disposed on the surface of the conveyor belt 1 in a uniformly distributed matrix pattern. This layout ensures the regularity and consistency of the protrusions throughout the conveying area. The matrix pattern refers to the protrusions being arranged at equal intervals in both the longitudinal and transverse directions, forming a grid-like structure, thereby providing a uniform anti-slip effect across the entire surface of the conveyor belt 1. The spacing between the protrusions is limited to a range of 10 mm to 20 mm, a range precisely designed to accommodate signs of different sizes, especially small signs, preventing them from slipping during the painting process. This distribution method effectively reduces the risk of sign displacement by increasing the coefficient of friction of the conveyor belt 1 surface without relying on additional fixing devices.

[0044] Specifically, the anti-slip protrusions 12 can be achieved by molding or injection molding on the surface of the conveyor belt 1. For example, during the manufacturing process of the conveyor belt 1, protrusions are formed on the surface using a mold with a regular array, and the spacing between the protrusions is precisely controlled between 10 mm and 20 mm by the mold design.

[0045] like Figure 1 and Figure 3 As shown, in one embodiment, the conveyor belt 1 includes an auxiliary support wheel 18, which is mounted at the bottom center of the conveyor belt 1. This arrangement is designed to provide additional support for the conveyor belt 1, thereby effectively reducing sagging that may occur during operation and suppressing the resulting vibration. Specifically, the auxiliary support wheel 18 is located in the middle region along the length of the conveyor belt 1, in direct contact with the bottom of the conveyor belt 1, to distribute the load and improve overall stability.

[0046] The auxiliary support wheel 18 typically comprises one or more wheel bodies rotatably mounted on a fixed bracket. The bracket is secured to the transverse beams of the support frame 3 via connectors, such as bolts or welding, ensuring that the auxiliary support wheel 18 maintains appropriate contact pressure with the conveyor belt 1. This connection allows the auxiliary support wheel 18 to roll freely as the conveyor belt 1 moves, reducing frictional resistance while maintaining the flatness of the conveyor belt 1. This design avoids the formation of overhangs in the middle of the conveyor belt 1, thereby optimizing the smooth transport of the signage.

[0047] Specifically, the auxiliary support wheel 18 can be implemented by a wheel axle and a bracket assembly. Specifically, the bracket assembly is fixed to the central crossbeam of the support frame 3. For example, the bracket is fastened to the surface of the crossbeam with bolts, and the wheel body of the auxiliary support wheel 18 is directly attached to the bottom middle area of ​​the conveyor belt 1 to ensure uniform support.

[0048] like Figure 2 As shown, in one embodiment, guide rails 5 are disposed on both sides of conveyor belt 1 in a sign manufacturing spraying equipment to guide the movement path of conveyor belt 1 and ensure smooth transport of signs during the spraying process. The inner surface of the guide rail 5 directly faces the edge of conveyor belt 1 to provide support and guidance. In this application, a damping coating 17 is provided on the inner surface, which is attached to the rail surface as an additional layer to reduce friction and vibration during equipment operation. The structure of the damping coating 17 typically includes one or more layers of elastic material, uniformly covering the contact area inside the rail, thereby absorbing impact and reducing contact resistance when conveyor belt 1 moves. This design avoids direct metal contact, optimizes the stability of the equipment under high-speed spraying conditions, and maintains the reliability of the guiding function. The installation position of the coating is strictly limited to the inner surface to ensure that it does not affect the overall rigidity of the rail and the external structure.

[0049] The damping coating 17 can be composed of a high-molecular polymer material and is fixed to the inside of the track through adhesive or spraying processes to form a continuous or intermittent covering layer. This coating bonds tightly to the track substrate, and its thickness can be adjusted according to application requirements to balance damping effect and wear resistance. When the conveyor belt 1 interacts with the guide track 5, the coating acts as a buffer medium, reducing the transmission of vibrations caused by the drive mechanism 4 or external factors, while also lowering the coefficient of friction. This structure avoids the introduction of additional damping components, simplifies equipment maintenance procedures, and ensures the durability of the coating during long-term use.

[0050] like Figure 3As shown, in one embodiment, the drive mechanism 4 is connected to the drive end of the conveyor belt 1, and this connection is achieved through a flexible coupling 19. The flexible coupling 19 is disposed between the output end of the drive mechanism 4 and the input shaft of the conveyor belt 1, forming a direct coupling structure. This connection reduces the vibration energy transmitted from the drive mechanism 4 to the conveyor belt 1 by absorbing mechanical vibration through a flexible element. Specifically, the flexible coupling 19 is made of rubber and is installed between the output shaft of the drive mechanism 4 and the input shaft of the conveyor belt 1, specifically fixedly connected by a flange to achieve vibration isolation and avoid resonance problems caused by rigid connections.

[0051] like Figure 2 As shown, in one embodiment, the support frame 3 integrates a transverse reinforcing beam 13, which is arranged horizontally to enhance the load-bearing capacity and resistance to deformation of the frame. Specifically, the transverse reinforcing beam 13 is installed in the transverse direction of the support frame 3, typically located in the top or bottom region of the frame, thereby effectively distributing dynamic loads during equipment operation and preventing frame twisting caused by vibrations of the conveyor belt 1 or the spraying device 2. The transverse reinforcing beam 13 is typically made of a rigid material, such as a metal profile, and its cross-sectional shape can be rectangular or I-shaped to optimize stress distribution.

[0052] The connection method of the transverse reinforcing beam 13 ensures its robust integration with the support frame 3. For example, the beam can be fixed to the frame's columns or longitudinal beams by welding or bolting, forming a continuous rigid connection. This connection not only improves the overall integrity of the frame but also facilitates adjustments during equipment assembly or maintenance. Through this structural design, the transverse reinforcing beam 13 plays a crucial reinforcing role in the support frame 3, significantly reducing elastic deformation of the frame, especially when bearing the weight of the spraying device 2 and the conveyor belt 1.

[0053] For example, the transverse reinforcing beam 13 is made of rectangular steel tubing, extends laterally, and is fixed to the top area of ​​the support frame 3. The two ends of the beam are welded to the vertical columns of the frame, thereby providing additional rigid support in the horizontal direction. For example, multiple rectangular steel tubings can be evenly arranged along the width of the frame and secured with bolts to ensure that they effectively suppress vibration transmission during equipment operation.

[0054] In one embodiment, the conveyor belt 1 is made of a non-slip and wear-resistant material with excellent friction coefficient and wear resistance, effectively preventing the signage from slipping or shifting during transportation. Specifically, the material selection includes synthetic rubber or polyurethane-based composite materials, which maintain stable performance when subjected to chemical solvents and mechanical stress in the spraying environment, thereby extending the service life of the conveyor belt 1. The thickness range is set to 5 mm to 10 mm. This dimension has been experimentally verified to ensure that the belt body has sufficient rigidity and support, preventing deformation or dents under load. The lower limit of 5 mm thickness prevents the material from being too thin, resulting in uneven surface, while the upper limit of 10 mm limits the material from being too thick, increasing equipment weight and energy consumption. In addition, this thickness, combined with the overall structural design, allows the conveyor belt 1 to maintain a horizontal posture after being installed on the support frame 3, reducing surface unevenness caused by vibration or uneven load, thereby ensuring uniform spraying.

[0055] In actual operation, when this device is used, the sign is placed on the conveyor belt 1, the drive mechanism 4 is activated to drive the conveyor belt 1 to move in a predetermined direction, and the guide rail 5 is set on both sides of the conveyor belt 1 to guide its movement path; during the conveying process, the shock-absorbing rollers 11 are located at both ends of the bottom of the conveyor belt 1 to reduce vibration and maintain stable transportation, while the anti-slip protrusions 12 on the upper surface of the conveyor belt 1 are evenly distributed to prevent small-sized signs from sliding during spraying; when the sign moves to the position below the spraying device 2, the spraying device 2 sprays the surface of the sign; after the spraying is completed, the sign is continued to be transported to the designated position by the conveyor belt 1.

[0056] The specific embodiments described above further illustrate the purpose, technical solutions, and beneficial effects of the embodiments of this disclosure. It should be understood that the above descriptions are merely specific embodiments of the embodiments of this disclosure and are not intended to limit the scope of protection of the embodiments of this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this disclosure should be included within the scope of protection of the embodiments of this disclosure.

Claims

1. A sign production manufacturing spraying apparatus characterized by, include: Conveyor belt (1) for transporting signage; Spraying device (2) is used to spray the surface of the signboard; A support frame (3) is provided for supporting the conveyor belt (1) and the spraying device (2); A drive mechanism (4) is used to drive the conveyor belt (1); Guide rail (5) is used to guide the movement of the conveyor belt (1); wherein, The drive mechanism (4) is connected to the drive end of the conveyor belt (1), the guide rail (5) is arranged on both sides of the conveyor belt (1), and the spraying device (2) is fixed to the support frame (3) and located above and to the side of the support frame (3); wherein, Two sets of shock-absorbing rollers (11) are symmetrically installed at both ends of the bottom of the conveyor belt (1), and each set of shock-absorbing rollers (11) is connected to the support frame (3) through a shock-absorbing spring (14). The surface of the conveyor belt (1) is provided with anti-slip protrusions (12), which are evenly distributed on the upper surface of the conveyor belt (1).

2. The spraying equipment for sign manufacturing according to claim 1, characterized in that: The shock-absorbing roller (11) includes a rubber outer layer (15) and a metal inner core (16) to provide dual shock absorption.

3. The sign manufacturing spray painting apparatus according to claim 1, characterized by: The anti-slip protrusion (12) is a hemispherical protrusion with a height of 2-5mm to enhance anti-slip performance.

4. The sign manufacturing spray painting apparatus according to claim 1, characterized by: The anti-slip protrusions (12) are uniformly distributed in a matrix on the three-dimensional surface of the conveyor belt (1) with a spacing of 10-20 mm.

5. The sign manufacturing spray painting apparatus according to claim 1, wherein: An auxiliary support wheel (18) is provided in the middle of the conveyor belt (1). The auxiliary support wheel (18) is fixed to the bottom middle of the conveyor belt (1) to reduce the sagging and shaking of the conveyor belt.

6. The sign manufacturing paint spraying apparatus of claim 1, wherein: The drive mechanism (4) is connected to the drive end of the conveyor belt (1) via a flexible coupling (19), which is made of rubber and is fixedly connected by a flange.

7. The sign manufacturing spray painting apparatus according to claim 1, wherein: The support frame (3) is equipped with transverse reinforcing beams (13) to improve overall rigidity.

8. The sign manufacturing paint spraying apparatus of claim 1, wherein: The conveyor belt (1) is made of anti-slip and wear-resistant material with a thickness of 5-10mm to ensure a smooth surface.

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