A driving structure for a coating apparatus

Abstract

The present application belongs to the technical field of coating equipment, and particularly relates to a driving structure for coating equipment. The device comprises a chain conveyor, a coating machine fixedly connected to the chain conveyor, a drying hot air blower, a support fixedly installed on the chain of the chain conveyor, a connecting plate rotatably connected to the top of the support through a rotating shaft, and a storage table arranged above the connecting plate. The device further comprises a paint cleaning assembly, which comprises first sliding rods fixedly connected symmetrically to the two sides of the storage table, sliding blocks slidably connected to the outer part of the first sliding rods, and scrapers connected to the sliding blocks. A heavy block is fixedly installed on the outer part of the sliding blocks. The movement of the chain of the chain conveyor can drive the storage table to move together. When the storage table deflects downward, the sliding cooperation of the first sliding rods and the sliding blocks and the gravity acting on the heavy block can drive the sliding blocks to slide to the lower part of the first sliding rods, thereby driving the scrapers to move to automatically remove the paint on the surface of the storage table.

Description

Technical Field

[0001] This invention belongs to the field of coating equipment technology, and particularly relates to a drive structure for coating equipment. Background Technology

[0002] During the production and processing of metal products, coating is typically performed to prevent oxidation and corrosion. This coating process requires the conveying of the metal products, necessitating the use of a specialized drive structure. This drive structure ensures process continuity, improves production efficiency and throughput, and allows the metal products to pass evenly through the spraying or dipping area, ensuring uniform coating distribution and consistent thickness.

[0003] For example, Chinese invention patent CN112191421B discloses a fully automatic chain-driven coating production line. This device sets spray heads and dryers on both sides of multiple rotating columns, so that the chain can drive the workpiece to move and rotate at the same time, thereby realizing the spraying and drying operations of the workpiece, thus improving production efficiency.

[0004] However, in actual use, the lack of an integrated cleaning structure makes it difficult to automatically remove the paint residue left on the baffle during spraying. Furthermore, as the paint accumulates and the paint layer thickness increases, subsequent metal products cannot be placed horizontally, which can easily reduce the coating quality of the metal products.

[0005] In summary, there is a current need for a drive structure for coating equipment with cleaning components. Summary of the Invention

[0006] The purpose of this invention is to provide a drive structure for coating equipment. The equipment uses a chain conveyor to move a worktable. When the worktable deflects downwards, the sliding engagement between the first sliding rod and the slider, along with the gravity acting on the weight, causes the slider to slide towards the lower part of the first sliding rod. This, in turn, moves the scraper to automatically remove the coating from the surface of the worktable.

[0007] The technical solution adopted by the present invention to solve the above problems is: a drive structure for coating equipment, comprising: A chain conveyor, wherein a first connecting frame and a second connecting frame are fixedly connected to the chain conveyor, a coating machine is fixedly installed on the first connecting frame, a drying hot air fan is fixedly installed on the second connecting frame, a bracket is fixedly installed on the chain of the chain conveyor, a connecting plate is rotatably connected to the top of the bracket via a rotating shaft, and a platform is provided above the connecting plate; The term "fixed connection" generally refers to connecting two or more components together in a way that prevents them from moving relative to each other under normal operating conditions. Fixed connections can be achieved in various ways, including welding, bolting, riveting, using adhesives, or other suitable mechanical fastening methods. Fixed connections include: permanent connections, which are those that, once installed, are not needed or intended to be removed, such as welding; these connections are generally considered permanent. Semi-permanent connections, using fasteners such as bolts and screws, may be intended to maintain the fixed relationship between components for a long period, but can theoretically be disassembled (e.g., for maintenance or adjustment). For example, in a chain conveyor, the first and second connecting frames are fixedly connected to the conveyor to ensure they maintain the correct position and orientation during transport to effectively support and guide the chain, as well as other components or materials on the conveyor.

[0008] A "rotational connection" (also known as a swivel connection or hinged connection) is a type of connection between two or more components that allows for relative rotational movement between them. This type of connection typically involves shafts and bearings, ensuring that the two connected components can rotate about a common axis. Characteristics of a rotational connection include: rotational degrees of freedom (providing at least one rotational degree of freedom, meaning the connected components can rotate within a plane or about an axis); shafts and bearings (these are key elements enabling smooth rotation of the components); and load transmission (the ability to bear axial loads, radial loads, or other forces and moments caused by the connecting plate). For example, if the top of a bracket is rotatably connected to a connecting plate via a pivot, then the connecting plate can rotate freely within a certain permissible range of rotation without detaching from the bracket.

[0009] A paint cleaning assembly includes a first slide bar symmetrically fixedly connected to both sides of a shelf, a slider slidably connected to the outside of the first slide bar, a crossbar fixedly connected between two sets of sliders, and a scraper fixedly connected to the bottom of the crossbar. A weight block is fixedly installed on the outside of the slider.

[0010] In mechanical design and engineering, "symmetrical fixing" typically refers to configuring and fixing two identical or similar components on opposite sides of a centerline or plane in a mirror or identical manner. This design ensures uniform force and load distribution on both sides and generally helps maintain the balance and alignment of the entire system. The characteristics of symmetrical fixing are: Geometric symmetry: Two or more components are symmetrical in shape, size, and position relative to the centerline or center plane; Load balancing: The configuration of symmetrical components helps ensure that the load is evenly distributed on both sides, which generally helps reduce vibration and wear caused by imbalance; Structural consistency: Through symmetrical fixing, the structural performance of the system remains consistent on both sides, contributing to the stability and predictability of the overall structure. For example, symmetrically fixing the first slide bar on both sides of a platform means that the slide bars on both sides are identical in shape, size, and position, and they are fixed in the same relatively consistent position on the platform, ensuring the balance of the entire structure and the consistency of the slide bar's function.

[0011] A further preferred technical solution is that the paint cleaning component further includes: An anti-slip assembly includes a second slide rod symmetrically fixed to the top of a connecting plate via a mounting base. Movable blocks are symmetrically slidably connected to the outer sides of the second slide rod. A connecting rod is hinged between the movable blocks and the shelf via a hinge. A stop bar is fixedly installed on one side of the connecting plate.

[0012] A further preferred technical solution is that the anti-slip component further includes: A spring is symmetrically sleeved on the outside of the second slide rod, and the two ends of the spring are fixedly connected to the movable block and the mounting base, respectively.

[0013] A further preferred technical solution is that: a worm gear is rotatably connected to the bracket, a motor is coaxially fixedly connected to one end of the worm gear, and a worm wheel is fixedly sleeved on the outside of the rotating shaft, with the worm wheel and the worm gear meshing together.

[0014] A further preferred technical solution is that the bottom of the scraper abuts against the top of the shelf.

[0015] "Abutment" refers to direct physical contact between the surfaces of two components, typically meaning the end or edge of one component is close to or in contact with the surface of another component. Characteristics of abutment include: surface contact: abutment usually means that the two surfaces are in actual contact, but not necessarily fixed or sealed; simple connection: this type of contact is usually simple and does not involve complex connection mechanisms such as bolts, riveting, or welding; mobility: the abutting components may still allow movement in a certain direction; for example, a scraper may need to slide up and down but is restricted in the horizontal direction due to abutment. For example, the bottom of a scraper abuts against the top of a platform, meaning the flat surface of the scraper's bottom is in direct contact with the flat surface of the platform's top. This contact is often used to ensure the scraper remains in the correct position during cleaning and also helps to remove material between the scraper and the platform.

[0016] A further preferred technical solution is that the length of the scraper is greater than the width of the shelf.

[0017] Here, "length" usually refers to the linear dimension of the scraper's working surface, while "width" refers to the lateral dimension of the material storage area on the platform.

[0018] A further preferred technical solution is that the length of the first sliding rod is greater than the length of the shelf. In this case, the length of the scraper is sufficient to cover the entire width of the shelf, ensuring that all material on the shelf is contacted and cleaned during scraper movement. Ensuring the scraper length exceeds the width of the shelf prevents any untouched areas from being reached during cleaning, thereby improving cleaning efficiency and effectiveness. For example, imagine a right-angled scraper moving on a flat shelf. If the scraper's "length" (i.e., its dimension in the cleaning direction) is greater than the width of the shelf, then at any cleaning position, the scraper will extend beyond the edge of the shelf, ensuring that the entire width of the shelf is covered regardless of how the scraper moves, leaving no area untouched.

[0019] A further preferred technical solution is that the top height of the baffle is less than the bottom height of the shelf.

[0020] In this design, the top height of the stop bar is less than the bottom height of the shelf, meaning the highest point of the stop bar is vertically lower than the lowest point of the shelf. This design is typically to ensure that the stop bar does not interfere with or obstruct the placement of a workpiece when it is placed on the shelf. Here, "height" is measured relative to a common reference plane, usually the work area or the ground. Furthermore, the shelf should be at its natural height; if any external force is applied to the shelf causing a change in its height, the top height of the stop bar may not necessarily be less than the actual bottom height of the shelf.

[0021] A further preferred technical solution is that the area of ​​the shelf is equal to the area of ​​the connecting plate.

[0022] In not all cases, the areas of the shelf and the connecting plate will be exactly the same. Sometimes, in order to meet specific functional needs or design requirements, the area of ​​the shelf may be slightly larger or slightly smaller than the area of ​​the connecting plate. However, as long as the area of ​​the shelf is large enough to prevent paint from flowing onto the anti-slip components of the connecting plate, it is acceptable.

[0023] A further preferred technical solution is that the motor is provided with a protective outer casing.

[0024] In summary, the present invention has the following advantages: 1. This invention utilizes the movement of the chain conveyor to move the platform. When the platform deflects downwards, the sliding cooperation between the first sliding rod and the slider, along with the gravity acting on the weight block, causes the slider to slide towards the lower part of the first sliding rod. This, in turn, moves the scraper to automatically remove the paint from the surface of the platform. When the platform deflects upwards, the scraper moves a second time using the same principle to perform a second scraping of the platform surface, thereby improving the removal effect on the paint on the top of the platform.

[0025] 2. In this invention, after the metal product is placed on the platform, the increase in its overall mass, combined with the hinged action between the platform, the movable block, and the connecting rod, allows the movable block to slide outwards towards the second sliding rod, thereby lowering the height of the platform. At this time, the stop bar can block the scraper to prevent the scraper from moving due to inertia caused by the need to stop during the conveying process for coating and drying the metal product. This avoids collision between the scraper and the metal product, thus preventing damage to the scraper and scratches on the metal product. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural diagram of the paint cleaning component of the present invention; Figure 3 This is a three-dimensional structural diagram of the anti-slip component of the present invention; Figure 4 for Figure 1 Enlarged structural diagram at point A in the middle.

[0027] In the attached diagram, the components represented by each number are as follows: 1. Chain conveyor; 2. Coating machine; 3. Drying hot air blower; 4. Support frame; 5. Connecting plate; 6. Display platform; 7. Worm gear; 8. Motor; 9. Worm wheel; 101. First slide bar; 102. Slider; 103. Crossbar; 104. Scraper; 105. Weight block; 201. Second slide bar; 202. Movable block; 203. Connecting rod; 204. Stop bar; 205. Spring. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings.

[0029] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0030] Example 1: Please combine Figure 1-4 A driving structure for a coating equipment according to this embodiment includes: Chain conveyor 1, with a first connecting frame and a second connecting frame fixedly connected to it. A coating machine 2 is fixedly installed on the first connecting frame, and a drying hot air fan 3 is fixedly installed on the second connecting frame. A bracket 4 is fixedly installed on the chain of chain conveyor 1. A connecting plate 5 is rotatably connected to the top of the bracket 4 via a rotating shaft. A platform 6 is provided above the connecting plate 5. The area of ​​the platform 6 is equal to the area of ​​the connecting plate 5, which can prevent paint from falling onto the anti-slip components and affecting its use. The paint cleaning assembly includes first slide bars 101 symmetrically fixedly connected to both sides of the shelf 6. Sliding blocks 102 are slidably connected to the outside of the first slide bars 101. A crossbar 103 is fixedly connected between the sliding blocks 102. A scraper 104 is fixedly connected to the bottom of the crossbar 103. The bottom of the scraper 104 abuts against the top of the shelf 6, ensuring that the scraper 104 can smoothly scrape off the paint on the surface of the shelf 6. The length of the scraper 104 is greater than the width of the shelf 6, ensuring the thoroughness of scraping off the paint on the surface of the shelf 6. The length of the first slide bars 101 is greater than the length of the shelf 6, which facilitates leaving a space gap for the baffle 204 to pass through.

[0031] Chain conveyor 1 typically refers to a mechanical device that uses a chain as a drive and load-bearing element to transport workpieces. In a coating production line, the chain conveyor is an important piece of equipment connecting different process areas. It can stably move the workpieces to be coated to a designated position for surface coating and other processes. Chain conveyor 1 typically consists of the following structural parts: a drive structure, including a motor and a gearbox, used to drive the chain; the drive structure can be set at a speed as needed to adapt to different process requirements; the chain, the core component of the conveyor, usually composed of metal links, possessing high strength and durability; the chain can be designed in different types and sizes to accommodate the size and shape of the workpiece; and a support 4, the part that directly contacts the workpiece, which can be a hook, clamp, or pallet, designed according to the different shapes and weights of the workpiece. In some embodiments, chain conveyor 1 further includes a tensioning device, used to maintain appropriate chain tension to ensure smooth and accurate conveying.

[0032] The hot air dryer 3 is a device used to accelerate the coating drying process. It typically generates and delivers hot air to raise the temperature of the coated item's surface, thereby accelerating solvent evaporation or promoting coating curing. The hot air dryer 3 includes: a heating element, typically a resistance wire or heating tube, used to convert electrical energy into heat energy; a fan component, used to draw in air and propel the hot air flow towards the item to be dried; the fan can generate different airflow rates and pressures as needed; a temperature control system, including a thermostat and sensors, used to control and monitor the temperature during the drying process, ensuring drying effectiveness and preventing heat damage to the item; and a flow path, used to guide the hot air flow to specific areas, typically designed to concentrate or disperse the airflow to adapt to different drying needs. In some embodiments, the hot air dryer 3 also includes: a safety device; to ensure safety, the hot air dryer typically has a built-in overheat protection device to prevent equipment damage or fire caused by excessive temperature.

[0033] The paint cleaning kit also includes: Weight block 105 is fixedly installed on the outside of slider 102.

[0034] The anti-slip assembly includes a second slide rod 201 symmetrically fixed to the top of the connecting plate 5 via a mounting base. Movable blocks 202 are symmetrically slidably connected to the outer sides of the second slide rod 201. A connecting rod 203 is hinged between the movable blocks 202 and the shelf 6 via a hinge. The baffle 204 is fixedly installed on one side of the connecting plate 5. The top height of the baffle 204 is less than the bottom height of the shelf 6.

[0035] The purpose of the weight block 105 is to increase the mass of the slider by using gravity to facilitate its sliding. The weight block 105 can be defined as a counterweight. The weight block 105, by using gravity to promote or control the slider 102 to slide along the first sliding rod 101, can be regarded as a motion assist. It is a simple mechanical device that does not require a complex drive system and can drive the slider 102 to slide by utilizing the change in gravity on the slider 102 itself.

[0036] Among them, the stop bar 204 is a safety device or component that is usually used to limit or control the movement of a component. The stop bar 204 can indirectly block the slider to prevent the slider from moving automatically under the action of gravity or other external forces.

[0037] The anti-slip components also include: Spring 205 is symmetrically sleeved on the outside of the second slide rod 201, and the two ends of spring 205 are fixedly connected to the movable block 202 and the mounting base, respectively.

[0038] The implementation principle of the driving structure for a coating equipment in this embodiment is as follows: First, the metal product is placed on the platform 6. Due to the increase in its overall mass, and the hinged action between the platform 6, the movable block 202, and the connecting rod 203, the movable block 202 can be pushed to slide outward of the second sliding rod 201, thereby lowering the height of the platform 6. At this time, the stop bar 204 can block the scraper 104 to prevent the scraper 104 from moving automatically under inertia and colliding with the metal product. Then, the chain conveyor 1, the coating machine 2, and the drying hot air fan 3 are started. The chain of the chain conveyor 1 moves, which drives the platform 6 to move, thereby realizing the conveying of the metal product. When the metal product is conveyed to the bottom of the coating machine 2, it can be coated. When the metal product is conveyed to the drying... Drying can be carried out below the hot air blower 3. Finally, the metal products can be removed from the platform 6. At this time, under the rebound action of the spring 205, the platform 6 will automatically return to its original position, and the baffle 204 will no longer block the scraper 104. As the platform 6 continues to move, when the platform 6 deflects downward, the sliding cooperation between the first sliding rod 101 and the slider 102, as well as the gravity of the weight block 105, will drive the slider 102 to slide towards the lower part of the first sliding rod 101, thereby driving the scraper 104 to move and automatically remove the paint from the surface of the platform 6. When the platform 6 deflects upward, the scraper 104 will move a second time to scrape the surface of the platform 6 a second time, thereby improving the removal effect of the paint on the top of the platform 6 and making it highly practical.

[0039] Furthermore, a further improvement is made in that: a worm gear 7 is rotatably connected to the bracket 4, and a motor 8 is coaxially fixedly connected to one end of the worm gear 7. A worm wheel 9 is fixedly sleeved on the outside of the rotating shaft, and the worm wheel 9 is meshed with the worm gear 7. The motor 8 drives the worm gear 7 to rotate, and the meshing action of the worm gear 7 and the worm wheel 9 drives the worm wheel 9 to rotate, thereby driving the table 6 to rotate to ensure the uniformity of coating and drying of metal products. The motor 8 is a stepper motor 8, and a protective shell is added to the outside of the motor 8 to protect the motor 8.

[0040] Furthermore, the same or similar element symbols are used as far as possible in the accompanying drawings and description to refer to the same or similar parts or steps. The drawings are presented in a simplified form and are not drawn to scale. For convenience and clarity only, directional terms such as top, bottom, left, right, upward, above, above, below, behind, and front may be used to refer to the drawings. These and similar directional terms should not be construed as limiting the scope of this disclosure in any way.

Claims

1. A drive structure for a coating equipment, characterized in that, include: A chain conveyor (1) is fixedly connected to a first connecting frame and a second connecting frame. A coating machine (2) is fixedly installed on the first connecting frame, and a drying hot air blower (3) is fixedly installed on the second connecting frame. A bracket (4) is fixedly installed on the chain of the chain conveyor (1). A connecting plate (5) is rotatably connected to the top of the bracket (4) through a rotating shaft. A shelf (6) is provided above the connecting plate (5). The paint cleaning assembly includes a first slide bar (101) symmetrically fixedly connected to both sides of the platform (6), a slider (102) slidably connected to the outside of the first slide bar (101), a crossbar (103) fixedly connected between the two sets of sliders (102), and a scraper (104) fixedly connected to the bottom of the crossbar (103). A weight block (105) is fixedly installed on the outside of the slider (102); The paint cleaning assembly also includes: The anti-slip assembly includes a second slide rod (201) symmetrically fixed to the top of the connecting plate (5) via a mounting base. Movable blocks (202) are symmetrically slidably connected to the outer sides of the second slide rod (201). A connecting rod (203) is hinged between the movable block (202) and the shelf (6) via a hinge. A stop bar (204) is fixedly installed on one side of the connecting plate (5); The top height of the baffle (204) is less than the bottom height of the shelf (6).

2. The drive structure for coating equipment according to claim 1, characterized in that, The anti-slip component also includes: Spring (205) is symmetrically sleeved on the outside of the second slide rod (201), and the two ends of the spring (205) are fixedly connected to the movable block (202) and the mounting base respectively.

3. The drive structure for coating equipment according to claim 1, characterized in that, A worm gear (7) is rotatably connected to the bracket (4). A motor (8) is coaxially fixedly connected to one end of the worm gear (7). A worm wheel (9) is fixedly sleeved on the outside of the rotating shaft, and the worm wheel (9) and the worm gear (7) are meshed together.

4. The drive structure for coating equipment according to claim 1, characterized in that, The bottom of the scraper (104) abuts against the top of the shelf (6).

5. The drive structure for coating equipment according to claim 1, characterized in that, The length of the scraper (104) is greater than the width of the shelf (6).

6. The drive structure for coating equipment according to claim 1, characterized in that, The length of the first slide bar (101) is greater than the length of the shelf (6).

7. The drive structure for coating equipment according to claim 1, characterized in that, The area of ​​the shelf (6) is equal to the area of ​​the connecting plate (5).

8. The drive structure for coating equipment according to claim 3, characterized in that, The motor (8) is provided with a protective casing.

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