A double-layer spin conveyor belt

Abstract

This utility model discloses a double-layer spinning conveyor belt, relating to the field of industrial spraying technology. It includes a base frame and an upper conveyor belt body, the upper conveyor belt body being positioned above the base frame. A first hanging assembly is installed at the upper end of the base frame, and a second hanging assembly is installed at the lower end of the upper conveyor belt body. A protective assembly is installed at the upper end of the first hanging assembly, and a spray gun body is installed in the middle of the first hanging assembly. This double-layer spinning conveyor belt achieves efficient spraying operations through an alternating double hanging arrangement. The upper layer uses friction between rotating rollers and anti-slip pads to drive the workpiece to spin, while the lower layer uses a gear meshing structure to synchronously drive the workpiece to rotate, ensuring that the spray gun can cover the workpiece surface without dead angles. Simultaneously, the protective assembly uses a scraper to remove and discharge accumulated paint from the protective disc in real time, effectively preventing paint from entering the drive components. This ensures long-term stable operation of the equipment and significantly reduces maintenance requirements.

Description

Technical Field

[0001] This utility model relates to the field of industrial spraying technology, specifically a double-layer spin conveyor belt. Background Technology

[0002] As the core equipment of industrial coating, the spray booth effectively controls the diffusion of paint mist through a closed space and exhaust filtration system. In the spraying operation, the conveyor belt device plays a key role in realizing the continuous transport of workpieces. Its uniform speed movement characteristics can not only avoid the uneven rhythm caused by manual handling and improve process efficiency, but also ensure the consistency of spray thickness and guarantee coating quality. At the same time, it reduces the direct contact between operators and organic solvents, significantly improving the safety of the working environment.

[0003] Traditional spray booth conveyor belt systems are typically single-layer structures. This single-layer structure limits the number of workpieces that can be sprayed per unit time, making it unsuitable for the operating cycle of high-speed spray guns and resulting in low capacity utilization. Furthermore, the traditional fixed hook design leads to insufficient coating coverage on the back of the workpiece, requiring secondary spraying to meet quality requirements. Additionally, the drive components of the conveyor belt are prone to clogging by paint buildup, necessitating shutdowns for cleaning and maintenance after a period of spraying. This not only increases labor costs but also causes production interruptions due to frequent downtime. Therefore, we need a double-layer self-rotating conveyor belt. Utility Model Content

[0004] The purpose of this invention is to provide a double-layer spin conveyor belt to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-layer spinning conveyor belt, comprising a base frame and an upper conveyor belt body, the upper conveyor belt body being disposed above the base frame, a first hanging assembly being installed at the upper end of the base frame, a second hanging assembly being installed at the lower end of the upper conveyor belt body, a protective assembly being installed at the upper end of the first hanging assembly, a spray gun body being installed in the middle of the first hanging assembly, the first hanging assembly comprising a bracket and uprights, the bracket being fixedly connected to the upper end of the base frame, and multiple uprights being provided. All plates are fixedly connected to the upper end of the base frame. A protective plate is fixedly connected to the side walls of multiple upright plates. A conveyor chain is slidably arranged inside the bracket. Multiple rotating rollers are rotatably connected to the upper end of the conveyor chain. Hangers are fixedly connected to the upper ends of the multiple rotating rollers. Multiple connecting rods are fixedly connected to the lower part of the side of the protective plate away from the rotating rollers. A pad is fixedly connected to one end of the multiple connecting rods. An anti-slip pad is fixedly connected to one end of the pad. The anti-slip pad is attached to the side wall of the multiple rotating rollers. A drive assembly is installed at the center of the arc-shaped section of the base frame.

[0006] Preferably, the drive assembly includes a fixed cylinder, which is rotatably sleeved at the center of the arc-shaped section of the base frame. A drive sprocket is fixedly sleeved at the middle of the outer wall of the fixed cylinder, and the drive sprocket meshes with the conveyor chain. A driven pulley is fixedly sleeved on the outer wall of the fixed cylinder, and the driven pulley is located between the base frame and the drive sprocket. A motor is fixedly installed at the lower end of the base frame, and the output end of the motor passes through the base frame. A main pulley is fixedly connected to the output end of the motor. A transmission belt is sleeved on the outer sides of the driven pulley and the main pulley.

[0007] Preferably, the second hanging assembly includes moving rods and fixed rods. Multiple moving rods are installed at the lower end of the upper conveyor belt body. Multiple fixed rods are fixedly connected to the side of the upper conveyor belt body away from the spray gun body. A flexible connecting belt is fixedly connected to the lower end of each moving rod. Multiple connecting blocks are rotatably connected to the lower end of each connecting block. Gears are fixedly connected to the lower end of each gear. Hooks are fixedly connected to the lower end of each gear. A fixed plate is fixedly connected to the lower end of each fixed rod. The fixed plate has multiple openings that mesh with the gear teeth.

[0008] Preferably, the protective assembly includes a protective disc and a support frame. The protective disc is fixedly connected to the upper end of the fixed cylinder, and the fixed cylinder communicates with the interior of the protective disc. The support frame is fixedly connected to the upper end of the base frame. The support frame includes a vertical rod and a horizontal rod. A scraper is fixedly connected to one side of the horizontal rod of the support frame. The scraper is attached to the inner wall of the protective disc. The lower end of the fixed cylinder communicates with the lower part of the base frame.

[0009] Preferably, the lower end of the base frame is fixedly connected to multiple support seats, and the upper end of the upper conveyor belt body is fixedly connected to multiple connecting seats, each of the multiple connecting seats having an internal threaded hole.

[0010] Preferably, the outer walls of the plurality of rotating rollers are provided with anti-slip stripes, and the anti-slip pads are made of rubber.

[0011] Preferably, the upper end of the base frame is fixedly connected to two symmetrically arranged limiting plates, and the protective disc is located directly below the spray gun body.

[0012] Compared with the prior art, the beneficial effects of this utility model are: this double-layer spin conveyor belt,

[0013] (1) By setting the first hanging component and the second hanging component, the objects to be sprayed can be installed in sequence at the top and bottom of the device. The double hanging method with the objects distributed at the top and bottom realizes the alternating transport of objects, which increases the number of sprayed objects per unit time. When the first hanging component moves the object, the rotating roller enters the semi-circular area and contacts the anti-slip pad. Under the action of friction, the rotating roller can rotate, thereby causing the workpiece hanging on the hanger to spin. At the same time, after the object on the hook of the second hanging component enters the semi-circular area, the gear and the opening on the fixed plate mesh, causing the hook to rotate, thereby causing the hanging workpiece to spin. Thus, the spray gun body can spray the object in all directions, ensuring the spray coverage rate.

[0014] (2) By setting up protective components, the drive components of the first hanging component are protected to prevent paint from entering the drive components during spraying, thereby ensuring the normal operation of the device. At the same time, the protective disc can rotate with the active sprocket, so that the scraper scrapes the paint collected inside the protective disc, accelerates the paint to flow to the bottom of the protective disc, and discharges the paint inside the protective disc from the bottom of the fixed cylinder in real time, reducing the frequency of shutdown for cleaning. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of the present utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the first hanging component of this utility model;

[0017] Figure 3 This is an exploded view of the structure of the first hanging component of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the second hanging component of this utility model;

[0019] Figure 5 This is a schematic diagram of the protective component structure of this utility model.

[0020] In the diagram: 1. Base frame; 2. Upper conveyor belt body; 3. First hanging assembly; 301. Bracket; 302. Vertical plate; 303. Protective plate; 304. Conveyor chain; 305. Rotating roller; 306. Hanger; 307. Connecting rod; 308. Pad; 309. Anti-slip pad; 310. Fixed cylinder; 311. Drive sprocket; 312. Driven pulley; 313. Motor; 314. Main pulley; 315. Transmission belt; 4. Second hanging assembly; 401. Moving rod; 402. Fixed rod; 403. Flexible connecting belt; 404. Connecting block; 405. Gear; 406. Hook; 407. Fixed plate; 408. Opening; 5. Protective assembly; 501. Protective disc; 502. Support frame; 503. Scraper; 6. Spray gun body; 7. Support base; 8. Connecting base; 9. Limiting plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] This utility model embodiment provides a double-layer spin conveyor belt, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the system includes a base frame 1 and an upper conveyor belt body 2. The upper conveyor belt body 2 is positioned above the base frame 1. A first hanging assembly 3 is installed on the upper end of the base frame 1, and a second hanging assembly 4 is installed on the lower end of the upper conveyor belt body 2. A protective assembly 5 is installed on the upper end of the first hanging assembly 3, and a spray gun body 6 is installed in the middle of the first hanging assembly 3. The first hanging assembly 3 includes a bracket 301 and upright plates 302. The bracket 301 is fixedly connected to the upper end of the base frame 1. Multiple upright plates 302 are provided, and all of the multiple upright plates 302 are fixedly connected to the upper end of the base frame 1. The side walls of the multiple upright plates 302 are jointly fixed. A protective plate 303 is connected to the bracket 301. A conveyor chain 304 is slidably arranged inside the bracket 301. Multiple rotating rollers 305 are rotatably connected to the upper end of the conveyor chain 304. Hangers 306 are fixedly connected to the upper ends of the multiple rotating rollers 305. Multiple connecting rods 307 are fixedly connected to the lower part of the side of the protective plate 303 away from the rotating rollers 305. A pad 308 is fixedly connected to one end of the multiple connecting rods 307. An anti-slip pad 309 is fixedly connected to one end of the pad 308. The anti-slip pad 309 is attached to the side wall of the multiple rotating rollers 305. A drive assembly is installed at the center of the arc section of the base frame 1.

[0023] The drive assembly includes a fixed cylinder 310, which is rotatably sleeved at the center of the arc-shaped section of the base frame 1. A drive sprocket 311 is fixedly sleeved at the middle of the outer wall of the fixed cylinder 310. The drive sprocket 311 meshes with the conveyor chain 304. A driven pulley 312 is fixedly sleeved on the outer wall of the fixed cylinder 310. The driven pulley 312 is located between the base frame 1 and the drive sprocket 311. A motor 313 is fixedly installed at the lower end of the base frame 1. The output end of the motor 313 passes through the base frame 1. A main pulley 314 is fixedly connected to the output end of the motor 313. A transmission belt 315 is sleeved on the outer side of the driven pulley 312 and the main pulley 314.

[0024] Both the base frame 1 and the upper conveyor belt body 2 are provided with a semi-circular section at one end, which is the spraying area. By setting the first hanging component 3 and the second hanging component 4, the objects to be sprayed can be installed sequentially at the top and bottom of the device. The double hanging method distributed at the top and bottom realizes the alternating transport of objects, thereby increasing the number of sprayed objects per unit time. When the first hanging component 3 needs to move the object, the motor 313 drives the main pulley 314 to rotate. Under the transmission of the transmission belt 315, the pulley 312 rotates, and the fixed cylinder 310 can rotate. The drive sprocket 311 outside the fixed cylinder 310 rotates, which drives the conveyor chain 304 to move above the bracket 301, which in turn drives the rotating roller 305 above the conveyor chain 304 to move. After the rotating roller 305 enters the semi-circular area of ​​the base frame 1, it contacts the anti-slip pad 309. Under the action of friction, the rotating roller 305 rotates, thereby causing the workpiece hanging on the hanger 306 to rotate.

[0025] It is worth noting that the spray gun body 6 is existing technology. Compressed air is ejected at high speed from the air vent of the spray gun hood, forming a local vacuum zone at the nozzle tip. This draws in the paint and mixes it with the air, atomizing it into fine droplets, which are then evenly sprayed onto the workpiece surface. A linear track drives the spray gun bracket to perform precise reciprocating motion, ensuring uniform coating coverage. Further details are omitted here. The drive sprocket 311 drives the conveyor chain 304, and a driven sprocket is located at the other end of the conveyor chain 304. The drive sprocket 311, driven sprocket, and conveyor chain 304... The conveying assembly consists of a driven sprocket, which uses a conventional design and primarily functions to guide and tension the conveyor chain 304. This can be achieved using existing technology, so the driven sprocket will not be described in detail. The bracket 301 supports the conveyor chain 304 to prevent it from sagging and affecting movement, ensuring stable operation of the device. The connecting rod 307 is bolted to one side of the protective plate 303. After prolonged use, the pad 308 can be removed for replacement and maintenance to ensure the stability of friction and the stable rotation of the rotating roller 305.

[0026] like Figure 1 and Figure 4As shown, the second hanging assembly 4 has moving rods 401 and fixed rods 402. Multiple moving rods 401 are provided, and all moving rods 401 are installed at the lower end of the upper conveyor belt body 2. Multiple fixed rods 402 are provided, and all fixed rods 402 are fixedly connected to the side of the upper conveyor belt body 2 away from the spray gun body 6. The lower ends of the multiple moving rods 401 are all fixedly connected to a flexible connecting belt 403. The lower ends of the flexible connecting belt 403 are rotatably connected to multiple connecting blocks 404. The lower ends of the multiple connecting blocks 404 are all fixedly connected to gears 405. The lower ends of the multiple gears 405 are all fixedly connected to hooks 406. The lower ends of the multiple fixed rods 402 are all fixedly connected to a fixing plate 407. The fixing plate 407 has multiple openings 408, and the openings 408 mesh with the teeth of the gears 405.

[0027] When an object on the hook 406 located in the second hanging assembly 4 enters the semi-circular area of ​​the upper conveyor belt body 2, the gear 405 contacts the opening 408 on the fixing plate 407. The outline shape of each opening 408 is adapted to the meshing surface of the gear 405, so that the gear 405 can mesh with the opening 408 in sequence, thereby causing the gear 405 to rotate, which in turn drives the hook 406 to rotate, thereby causing the hung workpiece to spin. By causing the objects hung on the first hanging assembly 3 and the second hanging assembly 4 to spin, the spray gun body 6 can... To ensure comprehensive coating coverage, the upper conveyor belt body 2 is a conventional technology. It drives the active roller to rotate through a drive reduction mechanism. The static friction between the roller surface and the conveyor belt pulls the annular conveyor belt to circulate. The movable rod 401 fixed on the conveyor belt moves synchronously with the belt and turns at the redirecting roller. The idler system maintains the stable running trajectory of the belt, thereby realizing the continuous conveying of suspended workpieces. The flexible connecting belt 403 can protect the upper conveyor belt body 2 and prevent the coating from entering the upper conveyor belt body 2.

[0028] like Figure 1 , Figure 2 and Figure 5 As shown, the protective assembly 5 includes a protective disc 501 and a support frame 502. The protective disc 501 is fixedly connected to the upper end of the fixed cylinder 310, and the fixed cylinder 310 is connected to the interior of the protective disc 501. The support frame 502 is fixedly connected to the upper end of the base frame 1. The support frame 502 includes a vertical rod and a horizontal rod. A scraper 503 is fixedly connected to one side of the horizontal rod of the support frame 502. The scraper 503 is attached to the inner wall of the protective disc 501. The lower end of the fixed cylinder 310 is connected to the bottom of the base frame 1.

[0029] During the spraying process, the protective disc 501 in the protective component 5 protects the drive component of the first hanging component 3, preventing paint from entering the drive component during spraying, thus ensuring the normal operation of the device. At the same time, the protective disc 501 can rotate with the drive sprocket 311, causing the scraper 503 to scrape the paint collected inside the protective disc 501, accelerating the flow of paint to the bottom of the protective disc 501, thereby discharging the paint inside the protective disc 501 from the lower end of the fixed cylinder 310 in real time, reducing the frequency of shutdown for cleaning.

[0030] like Figure 1 As shown, multiple support seats 7 are fixedly connected to the lower end of the base frame 1, and multiple connecting seats 8 are fixedly connected to the upper end of the upper conveyor belt body 2. Each connecting seat 8 has an internal threaded hole. The support seats 7 can support the base frame 1 to ensure the stability of the device, while the connecting seats 8 are used to install the upper conveyor belt body 2 on the top of the spray booth, so that the upper conveyor belt body 2 is located in the designated position.

[0031] like Figure 2 and Figure 3 As shown, the outer walls of multiple rotating rollers 305 are provided with anti-slip stripes, and the anti-slip pads 309 are made of rubber. The anti-slip stripes can increase the friction between the rotating rollers 305 and the anti-slip pads 309, so that the rotating rollers 305 can rotate stably after contacting the anti-slip pads 309.

[0032] like Figure 1 , Figure 2 and Figure 5 As shown, two symmetrically arranged limiting plates 9 are fixedly connected to the upper end of the base frame 1, and the protective disc 501 is located directly below the spray gun body 6. The limiting plates 9 can limit the conveyor chain 304, so that the conveyor chain 304 can slide stably above the bracket 301.

[0033] Working principle: By setting up the first hanging assembly 3 and the second hanging assembly 4, the objects to be sprayed can be installed sequentially at the top and bottom of the device. The double hanging method with the objects distributed at the top and bottom realizes the alternating transport of objects, thereby increasing the number of objects sprayed per unit time. When the first hanging assembly 3 needs to move the objects, the motor 313 drives the main pulley 314 to rotate. Under the transmission of the transmission belt 315, the pulley 312 rotates, and the fixed cylinder 310 can rotate. The drive sprocket 311 outside the fixed cylinder 310 rotates, which drives the conveyor chain 304 to move above the bracket 301. This drives the rotating roller 305 above the conveyor chain 304 to move. After the rotating roller 305 enters the semi-circular area of ​​the base frame 1, it contacts the anti-slip pad 309. Under the action of friction, the rotating roller 305 rotates, thereby causing the workpiece hanging on the hanger 306 to rotate. The workpiece on the hook 406 located in the second hanging assembly 4 rotates. After the workpiece enters the semi-circular area of ​​the upper conveyor belt body 2, the gear 405 meshes with the opening 408 on the fixed plate 407, driving the hook 406 to rotate, thereby causing the hung workpiece to spin. By causing the objects hung on the first hanging assembly 3 and the second hanging assembly 4 to spin, the spray gun body 6 can spray the objects from all directions, ensuring the spray coverage. During the spraying process, the protective disc 501 in the protective assembly 5 protects the drive assembly of the first hanging assembly 3, preventing paint from entering the drive assembly during spraying, thus ensuring the normal operation of the device. At the same time, the protective disc 501 can rotate with the drive sprocket 311, causing the scraper 503 to scrape the paint collected inside the protective disc 501, accelerating the paint to flow to the bottom of the protective disc 501, thereby discharging the paint inside the protective disc 501 from the lower end of the fixed cylinder 310 in real time, reducing the frequency of downtime for cleaning.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A double-layer spin conveyor belt comprising a chassis (1) and an upper conveyor belt body (2), characterized in that: The upper conveyor belt body (2) is set above the base frame (1). A first hanging assembly (3) is installed on the upper end of the base frame (1), and a second hanging assembly (4) is installed on the lower end of the upper conveyor belt body (2). A protective assembly (5) is installed on the upper end of the first hanging assembly (3). A spray gun body (6) is installed in the middle of the first hanging assembly (3). The first hanging assembly (3) includes a bracket (301) and a vertical plate (302). The bracket (301) is fixedly connected to the upper end of the base frame (1). Multiple vertical plates (302) are provided. Multiple vertical plates (302) are fixedly connected to the upper end of the base frame (1). The side walls of multiple vertical plates (302) are jointly fixedly connected to a protective assembly. The plate (303) has a conveyor chain (304) slidably arranged inside the bracket (301). The upper end of the conveyor chain (304) is rotatably connected to multiple rotating rollers (305). The upper ends of the multiple rotating rollers (305) are all fixedly connected to hangers (306). The lower part of the side of the protective plate (303) away from the rotating rollers (305) is fixedly connected to multiple connecting rods (307). One end of the multiple connecting rods (307) is fixedly connected to a pad (308). One end of the pad (308) is fixedly connected to an anti-slip pad (309). The anti-slip pad (309) is attached to the side wall of the multiple rotating rollers (305). A drive assembly is installed at the center of the arc section of the base frame (1).

2. A double-decker spin-conveyor as defined in claim 1, characterized in that: The drive assembly includes a fixed cylinder (310), which is rotatably sleeved at the center of the arc-shaped section of the base frame (1). A drive sprocket (311) is fixedly sleeved at the middle of the outer wall of the fixed cylinder (310). The drive sprocket (311) meshes with the conveyor chain (304). A driven pulley (312) is fixedly sleeved on the outer wall of the fixed cylinder (310). The driven pulley (312) is located between the base frame (1) and the drive sprocket (311). A motor (313) is fixedly installed at the lower end of the base frame (1). The output end of the motor (313) passes through the base frame (1). The output end of the motor (313) is fixedly connected to a main pulley (314). A transmission belt (315) is sleeved on the outer sides of the driven pulley (312) and the main pulley (314).

3. A double-decker spin-conveyor belt according to claim 1, characterized in that: The second hanging assembly (4) includes a moving rod (401) and a fixed rod (402). Multiple moving rods (401) are provided, all installed at the lower end of the upper conveyor belt body (2). Multiple fixed rods (402) are provided, all fixedly connected to the side of the upper conveyor belt body (2) away from the spray gun body (6). The lower ends of the multiple moving rods (401) are collectively fixedly connected to a flexible connecting belt (403). The flexible connecting strip (403) is rotatably connected to a plurality of connecting blocks (404) at its lower end. A gear (405) is fixedly connected to the lower end of each of the plurality of connecting blocks (404). A hook (406) is fixedly connected to the lower end of each of the plurality of gears (405). A fixing plate (407) is fixedly connected to the lower end of each of the plurality of fixing rods (402). The fixing plate (407) has a plurality of openings (408). The openings (408) mesh with the teeth of the gears (405).

4. A double-decker spin-conveyor as defined in claim 2, wherein: The protective component (5) includes a protective disc (501) and a support frame (502). The protective disc (501) is fixedly connected to the upper end of the fixed cylinder (310), and the fixed cylinder (310) is connected to the interior of the protective disc (501). The support frame (502) is fixedly connected to the upper end of the base frame (1). The support frame (502) includes a vertical rod and a horizontal rod. A scraper (503) is fixedly connected to one side of the horizontal rod of the support frame (502). The scraper (503) is attached to the inner wall of the protective disc (501). The lower end of the fixed cylinder (310) is connected to the bottom of the base frame (1).

5. A double-layer spin conveyor belt according to claim 1, characterized in that: The lower end of the base frame (1) is fixedly connected to multiple support seats (7), and the upper end of the upper conveyor belt body (2) is fixedly connected to multiple connecting seats (8), and each of the multiple connecting seats (8) is provided with an internal thread hole.

6. A double-decker spin-conveyor belt according to claim 1, characterized in that: The outer side walls of the multiple rotating rollers (305) are provided with anti-slip stripes, and the anti-slip pads (309) are made of rubber.

7. A double-decker spin-conveyor belt according to claim 4, characterized in that: The upper end of the base frame (1) is fixedly connected to two symmetrically arranged limiting plates (9), and the protective plate (501) is located directly below the spray gun body (6).

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