Roller conveyor with negative pressure adsorption dust collection function

Abstract

The invention discloses a roller conveyor with a negative pressure adsorption dust collection function, and relates to the technical field of conveyors. The conveying device comprises a rack, a plurality of conveying rollers are evenly and rotatably installed in the rack at equal intervals, a driving assembly used for driving the conveying rollers to rotate is arranged on the rack, a sensor used for monitoring the position of goods is fixed to the top of the rack, and a cleaning device is arranged on the rack. And the cleaning device comprises a negative pressure cover fixed at the bottom of the rack. Through the arrangement of the cleaning device, dust is sucked through negative pressure of a negative pressure fan and cleaned through a nylon brush roller, and the cleanliness of the roller conveying line is effectively improved, especially in a dust-free workshop or a clean environment; and meanwhile, the nylon brush roller, the cam, the inverted-n-shaped rod and the transverse plate are matched to drive the ejector rod to drive the goods to move up and down to generate certain shaking, dust adhering to the surfaces of the goods can be loosened easily, and therefore the dust can fall off more easily.

Description

Technical Field

[0001] This invention relates to the field of conveyor technology, specifically to a roller conveyor with negative pressure adsorption dust collection function. Background Technology

[0002] Roller conveyors are commonly used material handling equipment, widely applied in various industrial production and logistics transportation. Their structure consists of a series of horizontally or inclined rollers, on which materials slide or roll through a transmission system, enabling efficient transport of various items. The roller spacing and inclination angle can be adjusted as needed to adapt to different materials and working environments. With its high efficiency, stability, and ease of maintenance, this equipment has become an important component of modern warehousing and logistics systems.

[0003] However, current roller conveyors have the following problems: during the transportation of goods, it is not convenient to remove dust generated during transportation, which will lead to plastic dust in the work area of ​​the staff and dust in the workshop. For products with high cleanliness requirements (such as medical devices, electronic components, etc.), even a small amount of dust may cause product contamination, affecting its performance and safety. This is especially serious in cleanrooms, which can easily lead to product defects or failures. Therefore, we propose a roller conveyor with negative pressure adsorption dust collection function. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a roller conveyor with negative pressure adsorption dust collection function, which solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a roller conveyor with negative pressure adsorption dust collection function, comprising a frame, wherein a plurality of transmission rollers are uniformly and equidistantly rotatably installed inside the frame, a drive assembly for driving the plurality of transmission rollers to rotate is provided at the frame, a sensor for monitoring the position of goods is fixed at the top of the frame, a cleaning device is provided at the frame, the cleaning device includes a negative pressure hood fixed at the bottom of the frame, a negative pressure fan fixed at the bottom of the negative pressure hood, a dust collection filter bag fixed on the side of the negative pressure fan, two nylon brush rollers are rotatably installed inside the negative pressure hood, and the two nylon brush rollers are located between two adjacent transmission rollers, both of the two nylon brush rollers are driven by a motor, a horizontal plate is fixed to the middle of the bottom of the negative pressure hood by a spring, a plurality of top rods are uniformly and equidistantly fixed at the top of the horizontal plate, and inverted V-shaped rods are fixed on both sides of the horizontal plate, the top rods and the inverted V-shaped rods both penetrate the bottom of the negative pressure hood, and cams are fixed on the outer walls of both sides of the two nylon brush rollers.

[0006] According to the above technical solution, the two horizontal support rods of the inverted bar are located on the motion trajectory of the cam, and the top of the top rod is on the same horizontal plane as the top of the transmission roller.

[0007] According to the above technical solution, a baffle is fixed to the top of the frame, and several curtains are fixed to the side of the baffle away from the direction of cargo transport. An electric lifting rod is fixed to the top of the side of the baffle close to the direction of cargo transport, and an L-shaped baffle is fixed to the bottom of the telescopic end of the electric lifting rod.

[0008] According to the above technical solution, the sensor is electrically connected to the negative pressure fan, the motor corresponding to the nylon brush roller, and the electric lifting rod.

[0009] According to the above technical solution, an anti-overlap device is provided at the baffle. The anti-overlap device includes an outer sliding plate that is laterally slidably installed on both sides of the outer wall of the baffle, and an inner sliding plate that is laterally slidably installed on the inner wall of the baffle. A spring is provided between the inner sliding plate and the inner wall of the baffle. An elastic telescopic rod is fixed at the bottom of both sides of the horizontal support plate of the L-shaped baffle. The bottom of the telescopic end of the elastic telescopic rod is hinged to the top of the outer sliding plate through a hinge rod. A T-shaped rod is slidably installed through the outer walls of both inner sliding plates. An L-shaped inclined plate is fixed on the side of the two T-shaped rods that are close to each other. A spring is provided between the L-shaped inclined plate and the inner sliding plate.

[0010] According to the above technical solution, a notch for accommodating the T-shaped rod is provided between the outer wall of the retaining shell and the outer wall of the outer sliding plate.

[0011] According to the above technical solution, a cavity is provided on the side of the T-shaped rod near the outer sliding plate, and an elastic telescopic column is fixed on the side of the T-shaped rod away from the outer sliding plate. The telescopic end of the elastic telescopic column penetrates through the outer wall of the T-shaped rod, and a push rod is fixed to the telescopic end of the elastic telescopic column. T-shaped clamps are slidably installed on the sides of the two L-shaped inclined plates that are close to each other, and the support rod of the T-shaped clamp extends into the cavity of the T-shaped rod. The support rod of the T-shaped clamp and the push rod are hinged together by a hinge rod.

[0012] According to the above technical solution, there is a three-centimeter gap between the inner wall of the notch of the outer sliding plate and the T-shaped rod, and the push rod is located on the movement trajectory of the notch of the outer sliding plate.

[0013] According to the above technical solution, a lifting device is provided at the bottom of the frame. The lifting device includes a base plate fixed to the bottom of the frame and two trapezoidal plates respectively fixed to the bottom of the inner slide plate. A mountain-shaped cavity box is fixed on both sides of the top of the base plate. An L-shaped column is vertically slidably installed inside one cavity of each of the two mountain-shaped cavity boxes. A spring is provided between the L-shaped column and the bottom of the inner wall of the mountain-shaped cavity box. U-shaped plug plates are vertically slidably installed inside the other two cavities of the two mountain-shaped cavity boxes. A lifting roller is rotatably installed between the two U-shaped plug plates. The lifting roller is located between two adjacent transmission rollers.

[0014] According to the above technical solution, the horizontal support of the L-shaped column is located on the inclined surface of the trapezoidal plate, and the mountain-shaped cavity is filled with hydraulic oil.

[0015] This invention provides a roller conveyor with negative pressure adsorption dust collection function. It has the following beneficial effects:

[0016] (1) The present invention improves the cleanliness of the roller conveyor line by setting up a cleaning device, which uses a negative pressure fan to attract dust and a nylon brush roller to clean the dust. This is especially useful in cleanrooms or clean environments. At the same time, the nylon brush roller, cam, inverted bar, and cross plate work together to drive the top rod to move the goods up and down, which helps to loosen the dust adhering to the surface of the goods, making it easier for the dust to fall off. At the same time, the sensor starts the electric lifting rod, and the telescopic end of the electric lifting rod pushes the L-shaped baffle to move downward. At this time, the L-shaped baffle, the baffle shell, and the baffle curtain will form a dust cover around the goods, thereby preventing the dust on the surface of the goods from being scattered into the surrounding environment when the goods are being cleaned.

[0017] (2) By setting up an anti-overlap device, during each downward movement of the L-shaped baffle, the L-shaped baffle, elastic telescopic rod, hinge rod one, outer slide plate, baffle shell, T-shaped rod, and inner slide plate work together to drive the L-shaped inclined plate to move the next item away from the position below the L-shaped baffle. This avoids the problem that the presence of the next item prevents the L-shaped baffle from effectively closing the baffle shell to form a dust cover, thus facilitating the cleaning device to treat the dust adhering to the surface of the item. At the same time, the outer slide plate, T-shaped rod, inner slide plate, push rod, elastic telescopic column, and hinge rod two work together to drive the T-shaped clamp to further clamp the item between the two L-shaped inclined plates. This ensures that the L-shaped inclined plate can drive the T-shaped clamp to move the heavier item away from the position below the L-shaped baffle. This avoids the problem that during the movement of the item by the L-shaped inclined plate, the item will slip between the L-shaped inclined plate and the item due to its weight, causing the L-shaped inclined plate to be unable to effectively move the item away from the position below the L-shaped baffle.

[0018] (3) By setting up the lifting device, the inner slide plate, trapezoidal plate, mountain-shaped cavity box and U-shaped plug plate work together to drive the lifting roller to protrude from the top of the transmission roller. The lifting roller forms a rolling support under the next cargo, which helps the T-shaped clamp to move the heavier cargo away from the position below the L-shaped baffle. This avoids the problem that the transmission roller will not rotate due to the braking effect of the drive component, which would cause the transmission roller to easily wear the bottom surface of the cargo. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the entire invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the entire invention. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the entire invention. Figure 3 ;

[0022] Figure 4 This is a schematic diagram of a partial structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the cleaning device of the present invention. Figure 1 ;

[0024] Figure 6 This is a schematic diagram of the cleaning device of the present invention. Figure 2 ;

[0025] Figure 7 This is a partial structural schematic diagram of the cleaning device of the present invention;

[0026] Figure 8 This is a schematic diagram of the anti-overlapping device of the present invention;

[0027] Figure 9 This is a partial structural diagram of the anti-overlapping device of the present invention. Figure 1 ;

[0028] Figure 10 This is a partial structural diagram of the anti-overlapping device of the present invention. Figure 2 ;

[0029] Figure 11 This is a partial cross-sectional view of the lifting device of the present invention. Figure 1 ;

[0030] Figure 12 This is a partial cross-sectional view of the lifting device of the present invention. Figure 2 .

[0031] In the diagram: 1. Frame; 2. Transfer roller; 3. Drive assembly; 4. Sensor; 5. Cleaning device; 51. Negative pressure hood; 52. Negative pressure fan; 53. Dust collection filter bag; 54. Nylon brush roller; 55. Cam; 56. Horizontal plate; 57. Inverted bar; 58. Top rod; 59. Baffle; 510. Electric lifting rod; 511. L-shaped baffle; 512. Curtain; 6. Anti-overlap device; 61. Elastic telescopic rod; 62. Hinge rod one; 63. Outer sliding plate; 64. T-shaped rod; 65. L-shaped inclined plate; 66. Inner sliding plate; 67. Push rod; 68. Hinge rod two; 69. T-shaped clamp; 610. Elastic telescopic column; 7. Lifting device; 71. Base plate; 72. Mountain-shaped cavity box; 73. U-shaped plug plate; 74. Lifting roller; 75. L-shaped column rod; 76. Trapezoidal plate. Detailed Implementation

[0032] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0033] Please see Figure 1 - Figure 12 One embodiment of the present invention is a roller conveyor with negative pressure adsorption dust collection function, comprising a frame 1, wherein a plurality of transmission rollers 2 are uniformly and equidistantly rotatably installed inside the frame 1, and a drive assembly 3 for driving the transmission rollers 2 to rotate is provided at the frame 1. The drive assembly 3 is an existing device for controlling the operation of the transmission rollers 2, which will not be described in detail here. A sensor 4 for monitoring the position of goods is fixed at the top of the frame 1, and a control module is provided at the sensor 4. A cleaning device 5 is provided at the frame 1, the cleaning device 5 including a negative pressure cover 51 fixed at the bottom of the frame 1, a negative pressure fan 52 fixed at the bottom of the negative pressure cover 51, and a dust collection filter bag 53 fixed on the side of the negative pressure fan 52. Two nylon brush rollers 54 are rotatably installed inside the negative pressure cover 51, and the two nylon brush rollers 54 are located between two adjacent transmission rollers 2. Both nylon brush rollers 54 are electrically powered. Driven by a machine, the negative pressure fan 52 draws in dust and the nylon brush rollers 54 clean the dust, effectively improving the cleanliness of the roller conveyor line, especially in cleanrooms or clean environments. The bottom center of the negative pressure cover 51 is fixed with a horizontal plate 56 by a spring. Several top rods 58 are evenly and equidistantly fixed on the top of the horizontal plate 56. Inverted V-shaped rods 57 are fixed on both sides of the horizontal plate 56. The top rods 58 and the inverted V-shaped rods 57 penetrate the bottom of the negative pressure cover 51. Cams 55 are fixed on the outer walls of both sides of the two nylon brush rollers 54. The horizontal support rods on both sides of the inverted V-shaped rods 57 are located on the movement trajectory of the cams 55. The top of the top rod 58 is on the same horizontal plane as the top of the conveyor roller 2. Through the above structure, the top rods 58 drive the goods to move up and down, generating a certain amount of shaking, which helps to loosen the dust adhering to the surface of the goods, making it easier for the dust to fall off.

[0034] A baffle 59 is fixed to the top of the frame 1. Several curtains 512 are fixed to the side of the baffle 59 away from the direction of cargo transport. An electric lifting rod 510 is fixed to the top of the side of the baffle 59 close to the direction of cargo transport. An L-shaped baffle 511 is fixed to the bottom of the telescopic end of the electric lifting rod 510. The sensor 4 is electrically connected to the motors corresponding to the negative pressure fan 52 and the nylon brush roller 54 and the electric lifting rod 510. Through the above structure, the L-shaped baffle 511, the baffle 59 and the curtains 512 will form a dust cover around the cargo, thereby preventing dust on the surface of the cargo from being scattered into the surrounding environment when the cargo is being dusted.

[0035] An anti-overlapping device 6 is provided at the baffle 59. The anti-overlapping device 6 includes an outer sliding plate 63 that is laterally slidably installed on both sides of the outer wall of the baffle 59, and an inner sliding plate 66 that is laterally slidably installed on the inner wall of the baffle 59. A spring is provided between the inner sliding plate 66 and the inner wall of the baffle 59. Elastic telescopic rods 61 are fixed at the bottom of both sides of the horizontal support plate of the L-shaped baffle 511. The bottom of the telescopic end of the elastic telescopic rod 61 is hinged to the top of the outer sliding plate 63 through a hinge rod 62. T-shaped rods 64 are slidably installed through the outer walls of the two inner sliding plates 66. The sides of the two T-shaped rods 64 that are close to each other are fixed. An L-shaped inclined plate 65 is provided, and a spring is provided between the L-shaped inclined plate 65 and the inner sliding plate 66. Notches for accommodating the T-shaped rod 64 are provided between the outer walls of the baffle 59 and the outer sliding plate 63. With the above structure, the T-shaped rod 64 will move the next item through the L-shaped inclined plate 65 during displacement, so that the next item moves away from the position below the L-shaped baffle 511. This avoids the problem that the presence of the next item will prevent the L-shaped baffle 511 from effectively closing the baffle 59 to form a dust cover, thus facilitating the cleaning device 5 to treat the dust adhering to the surface of the item.

[0036] A cavity is provided on the side of the T-shaped rod 64 near the outer sliding plate 63. An elastic telescopic column 610 is fixed to the side of the T-shaped rod 64 away from the outer sliding plate 63. The telescopic end of the elastic telescopic column 610 penetrates the outer wall of the T-shaped rod 64, and a push rod 67 is fixed to the telescopic end of the elastic telescopic column 610. T-shaped clamping plates 69 are slidably installed and penetrate the sides of the two L-shaped inclined plates 65 that are close to each other, and the support rods of the T-shaped clamping plates 69 extend into the cavity of the T-shaped rod 64 (e.g., Figure 10 As shown), the support rod of the T-shaped clamp 69 and the push rod 67 are hinged together by the hinge rod 68. There is a three-centimeter gap between the inner wall of the notch of the outer slide plate 63 and the T-shaped rod 64. The push rod 67 is located on the movement trajectory of the notch of the outer slide plate 63. With the above structure, the T-shaped clamp 69 can further clamp the goods between the two L-shaped inclined plates 65, thereby ensuring that the L-shaped inclined plates 65 can drive the T-shaped clamp 69 to move the heavier goods away from the position below the L-shaped baffle 511.

[0037] During operation, while the conveyor roller 2 is transporting goods, the sensor 4 monitors the position of the goods in real time. When the sensor 4 detects that the goods have moved above the negative pressure hood 51, the sensor 4 controls the drive assembly 3 to stop the conveyor roller 2 via the control module. Then, the sensor 4 controls the motor corresponding to the nylon brush roller 54 and the negative pressure fan 52 to start via the control module. The negative pressure fan 52 generates negative pressure at the negative pressure hood 51, allowing the negative pressure hood 51 to attract dust to the dust collection filter bag 53 for collection. At the same time, the motor drives the nylon brush roller 54 to rotate, and the nylon brush roller 54 cleans the dust on the lower surface of the goods, removing attached dust and impurities. By attracting dust through negative pressure and cleaning dust with the nylon brush roller 54, the cleanliness of the roller conveyor line is effectively improved, especially in cleanrooms or clean environments. During the rotation of the nylon brush roller 54, the nylon brush roller 54 drives the cam 55 to rotate, and the cam 55 pushes the two horizontal support rods on both sides of the inverted bar 57. The inverted V-shaped rod 57 moves upward, and the inverted V-shaped rod 57 drives the top rod 58 to move along with it through the horizontal plate 56. The spring corresponding to the horizontal plate 56 is compressed. When the cam 55 stops pushing the horizontal support rods on both sides of the inverted V-shaped rod 57, under the action of the spring force corresponding to the horizontal plate 56, the horizontal plate 56 drives the top rod 58 and the inverted V-shaped rod 57 to reset and move downward. This process repeats, so that the top rod 58 intermittently lifts and lowers the goods above the negative pressure cover 51, so that the goods can shake a certain amount when moving up and down, which helps to loosen the dust adhering to the surface of the goods, making it easier for the dust to fall off. At the same time, the sensor 4 controls the start of the electric lifting rod 510 through the control module. The telescopic end of the electric lifting rod 510 pushes the L-shaped baffle 511 to move downward. At this time, the L-shaped baffle 511, the baffle shell 59 and the baffle curtain 512 will form a dust cover around the goods, thereby preventing the dust on the surface of the goods from being scattered into the surrounding environment during the dust removal operation.

[0038] During each movement of goods into the baffle 59, the inclined surface of the L-shaped ramp 65 initially guides the goods, placing them at the center of the negative pressure shroud 51 and the transfer roller 2. When two goods are moving close together, after the first goods move above the negative pressure shroud 51, the second goods will be positioned below the baffle 59, between the two L-shaped ramps 65. At this point, under the spring force of the corresponding L-shaped ramp 65, the L-shaped ramp 65 will clamp the second goods. The use of the L-shaped baffle 511 may be interfered with by the cargo. Therefore, during each downward movement of the L-shaped baffle 511, the horizontal support plate of the L-shaped baffle 511 drives the elastic telescopic rod 61 to move downward. The telescopic end of the elastic telescopic rod 61 first pushes the hinge rod 62, causing the outer slide plate 63 to move along the outer wall of the baffle 59. The inner wall of the notch of the outer slide plate 63 pushes the T-shaped rod 64, which in turn moves the inner slide plate 66. Since the L-shaped inclined plate 65 is in the state of clamping the next cargo, the T-shaped rod 64 will pass through the L-shaped baffle 511 during the displacement process. The inclined plate 65 moves the next item along with it, thus moving it away from the area below the L-shaped baffle 511. This prevents the L-shaped baffle 511 from failing to effectively close the cover 59 to form a dust cover due to the presence of the next item, facilitating the cleaning device 5's removal of dust adhering to the item's surface. During the movement of the inner sliding plate 66, pushed by the T-shaped rod 64 along the inner sliding plate 64, the notch in the outer sliding plate 63 first pushes the push rod 67 into the cavity of the T-shaped rod 64. The push rod 67 then pushes the elastic telescopic column 61. The telescopic end of 0 retracts, and the push rod 67 pushes the hinge rod 68 to cause the T-shaped clamp 69 to move, thereby allowing the T-shaped clamp 69 to further clamp the goods between the two L-shaped inclined plates 65. This ensures that the L-shaped inclined plate 65 can drive the T-shaped clamp 69 to move the heavier goods away from the position below the L-shaped baffle 511, thus avoiding the problem that the L-shaped inclined plate 65 cannot effectively move the goods away from the position below the L-shaped baffle 511 due to the weight of the goods during the movement of the goods.

[0039] Please see Figure 1 - Figure 12Based on the above embodiments, in another embodiment of the present invention, a lifting device 7 is provided at the bottom of the frame 1. The lifting device 7 includes a base plate 71 fixed to the bottom of the frame 1 and two trapezoidal plates 76 respectively fixed to the bottom of the inner slide plate 66. A mountain-shaped cavity box 72 is fixed to both sides of the top of the base plate 71. An L-shaped column rod 75 is vertically slidably installed inside one cavity of each of the two mountain-shaped cavity boxes 72. A spring is provided between the L-shaped column rod 75 and the bottom of the inner wall of the mountain-shaped cavity box 72. The other two... Each cavity has a U-shaped stopper plate 73 vertically slidably installed inside. A lifting roller 74 is rotatably installed between two U-shaped stopper plates 73. The lifting roller 74 is located between two adjacent transfer rollers 2. The horizontal support of the L-shaped column 75 is located on the inclined surface of the trapezoidal plate 76. The mountain-shaped cavity box 72 is filled with hydraulic oil. Through the above structure, the lifting roller 74 forms a rolling support under the next piece of goods, which helps the T-shaped clamp 69 to move the heavier goods away from the position below the L-shaped baffle 511.

[0040] During use, during each displacement of the inner slide plate 66, the inner slide plate 66 will drive the trapezoidal plate 76 to move accordingly. The inclined surface of the trapezoidal plate 76 will push the crossbar of the L-shaped column 75, causing the L-shaped column 75 to move downward. The L-shaped column 75 will squeeze the hydraulic oil inside the mountain-shaped cavity box 72, thereby causing the hydraulic oil inside the mountain-shaped cavity box 72 to lift the U-shaped plug plate 73. The U-shaped plug plate 73 will drive the lifting roller 74 to protrude from the top of the transfer roller 2. The lifting roller 74 forms a rolling support under the next cargo, which helps the T-shaped clamp 69 to move the heavier cargo away from the position below the L-shaped baffle 511. This avoids the problem that the transfer roller 2 will not rotate due to the braking effect of the drive component 3, thus preventing the transfer roller 2 from easily wearing down the bottom surface of the cargo.

[0041] This invention utilizes the rotation of a nylon brush roller (54) to synchronously drive a cam (55), causing the horizontal plate (56) and the top rod (58) to produce periodic up-and-down reciprocating motion. This design causes high-frequency shaking of goods during transport, physically breaking the adhesion between stubborn dust and the surface of the goods. The loosened dust is then efficiently sucked into the dust collection filter bag (53) by a negative pressure fan (52), achieving a three-in-one deep cleaning process of "loosening first, then sweeping, and then adsorbing," greatly improving the compliance rate of cleanroom operations.

[0042] Through the linkage between the sensor (4) and the electric lifting rod (510), when the dust removal operation is started, the L-shaped baffle (511), the baffle shell (59) and the baffle curtain (512) can be quickly closed to form a temporary local dust cover around the goods. This effectively avoids secondary dust generated during vibration and cleaning from polluting the clean environment of the workshop and subsequent goods.

[0043] In a continuous conveyor line, subsequent goods are prone to getting stuck at the descending L-shaped baffle (511), preventing the dust cover from sealing properly. This invention cleverly utilizes the mechanical kinetic energy of the descending L-shaped baffle (511) to drive the outer slide plate (63) and inner slide plate (66) to move laterally via an elastic telescopic rod (61) and a hinged rod (62). The T-shaped rod (64) on the inner slide plate (66) drives the L-shaped inclined plate (65) to actively push the next goods backward, creating enclosed space and completely solving the spatial interference problem in the continuous conveying process.

[0044] For heavier goods, conventional push plates are prone to slippage. In the anti-overlap device (6) of the present invention, during displacement, the notch of the outer slide plate (63) triggers the push rod (67) to retract, which in turn drives the T-shaped clamp (69) through the second hinge rod (68). The T-shaped clamp (69) can further firmly clamp the goods between the two L-shaped inclined plates (65), converting the pushing force into a stable clamping force, ensuring that goods of any weight can be accurately moved backward.

[0045] When the inner sliding plate (66) moves the trapezoidal plate (76) laterally to push aside the next item, the inclined surface of the trapezoidal plate (76) will press down the L-shaped column (75). The L-shaped column (75) squeezes the hydraulic oil in the mountain-shaped cavity box (72), and uses hydraulic transmission to push the U-shaped plug plate (73) and the lifting roller (74) upward, making them protrude from the transfer roller (2). This action fully utilizes the displacement energy of the anti-overlap device (6), without the need for an additional drive motor, resulting in a compact structure and high energy utilization.

[0046] During dust removal operations, the drive assembly (3) brakes and stops the rotation of the transfer roller (2). If the next item is forcibly pushed backward at this time, the bottom of the item will rub violently against the stationary transfer roller (2), causing damage to the item. The timely lifting of the lifting roller (74) provides sensitive rolling support for the bottom of the item, converting sliding friction into rolling friction, which reduces the resistance to pushing heavy objects and perfectly protects the bottom appearance of the item.

[0047] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A roller conveyor with negative pressure adsorption dust collection function, comprising a frame (1), wherein a plurality of transmission rollers (2) are uniformly and equidistantly rotatably installed inside the frame (1), a drive assembly (3) for driving the plurality of transmission rollers (2) to rotate is provided at the frame (1), and a sensor (4) for monitoring the position of goods is fixed on the top of the frame (1), characterized in that: A cleaning device (5) is provided at the frame (1). The cleaning device (5) includes a negative pressure hood (51) fixed to the bottom of the frame (1). A negative pressure fan (52) is fixed to the bottom of the negative pressure hood (51). A dust collection filter bag (53) is fixed to the side of the negative pressure fan (52). Two nylon brush rollers (54) are rotatably installed inside the negative pressure hood (51), and the two nylon brush rollers (54) are located between two adjacent transmission rollers (2). The nylon brush rollers (54) are all driven by a motor. A horizontal plate (56) is fixed in the middle of the bottom of the negative pressure cover (51) by a spring. Several top rods (58) are evenly and equidistantly fixed on the top of the horizontal plate (56). Inverted bar rods (57) are fixed on both sides of the horizontal plate (56). The top rods (58) and inverted bar rods (57) penetrate the bottom of the negative pressure cover (51). Cams (55) are fixed on the outer walls of both sides of the two nylon brush rollers (54).

2. The roller conveyor with negative pressure adsorption dust collection function according to claim 1, characterized in that: The two horizontal support rods of the inverted bar (57) are located on the motion trajectory of the cam (55), and the top of the top rod (58) is on the same horizontal plane as the top of the transmission roller (2).

3. A roller conveyor with negative pressure adsorption dust collection function according to claim 1, characterized in that: The top of the frame (1) is fixed with a baffle (59), and a number of curtains (512) are fixed on the side of the baffle (59) away from the direction of cargo transport. An electric lifting rod (510) is fixed on the top of the side of the baffle (59) close to the direction of cargo transport, and an L-shaped baffle (511) is fixed at the bottom of the telescopic end of the electric lifting rod (510).

4. A roller conveyor with negative pressure adsorption dust collection function according to claim 3, characterized in that: The sensor (4) is electrically connected to the negative pressure fan (52), the motor corresponding to the nylon brush roller (54), and the electric lifting rod (510).

5. A roller conveyor with negative pressure adsorption dust collection function according to claim 3, characterized in that: An anti-overlap device (6) is provided at the baffle (59). The anti-overlap device (6) includes an outer sliding plate (63) that is laterally slidably installed on both sides of the outer wall of the baffle (59) and an inner sliding plate (66) that is laterally slidably installed on the inner wall of the baffle (59). A spring is provided between the inner sliding plate (66) and the inner wall of the baffle (59). An elastic telescopic rod (61) is fixed at the bottom of both sides of the horizontal support plate of the L-shaped baffle (511). The bottom of the telescopic end of the elastic telescopic rod (61) is hinged to the top of the outer sliding plate (63) through a hinge rod (62). A T-shaped rod (64) is slidably installed through the outer walls of the two inner sliding plates (66). An L-shaped inclined plate (65) is fixed on the side of the two T-shaped rods (64) that are close to each other. A spring is provided between the L-shaped inclined plate (65) and the inner sliding plate (66).

6. A roller conveyor with negative pressure adsorption dust collection function according to claim 5, characterized in that: Both the outer wall of the retaining shell (59) and the outer sliding plate (63) are provided with a notch for accommodating the T-shaped rod (64).

7. A roller conveyor with negative pressure adsorption dust collection function according to claim 5, characterized in that: The T-shaped rod (64) has a cavity on the side near the outer slide plate (63). An elastic telescopic column (610) is fixed on the side of the T-shaped rod (64) away from the outer slide plate (63). The telescopic end of the elastic telescopic column (610) passes through the outer wall of the T-shaped rod (64). A push rod (67) is fixed on the telescopic end of the elastic telescopic column (610). T-shaped clamps (69) are slidably installed on the side of the two L-shaped inclined plates (65) that are close to each other. The support rod of the T-shaped clamp (69) extends into the cavity of the T-shaped rod (64). The support rod of the T-shaped clamp (69) and the push rod (67) are hinged together by a second hinge rod (68).

8. A roller conveyor with negative pressure adsorption dust collection function according to claim 7, characterized in that: There is a three-centimeter gap between the inner wall of the notch of the outer sliding plate (63) and the T-shaped rod (64), and the push rod (67) is located on the movement trajectory of the notch of the outer sliding plate (63).

9. A roller conveyor with negative pressure adsorption dust collection function according to claim 5, characterized in that: The bottom of the frame (1) is provided with a lifting device (7). The lifting device (7) includes a base plate (71) fixed to the bottom of the frame (1) and two trapezoidal plates (76) respectively fixed to the bottom of the inner slide plate (66). Both sides of the top of the base plate (71) are fixed with mountain-shaped cavity boxes (72). L-shaped columns (75) are vertically slidably installed in one cavity of each of the two mountain-shaped cavity boxes (72). A spring is provided between the L-shaped columns (75) and the bottom of the inner wall of the mountain-shaped cavity box (72). U-shaped plug plates (73) are vertically slidably installed in the other two cavities of the two mountain-shaped cavity boxes (72). A lifting roller (74) is rotatably installed between the two U-shaped plug plates (73). The lifting roller (74) is located between two adjacent transmission rollers (2).

10. A roller conveyor with negative pressure adsorption dust collection function according to claim 9, characterized in that: The horizontal support of the L-shaped column (75) is located on the inclined surface of the trapezoidal plate (76) and the mountain-shaped cavity (72) is filled with hydraulic oil.

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