A roller conveyor

Abstract

The application belongs to the field of conveying devices and provides a roller type conveying device, which comprises a mounting frame, a plurality of transmission rollers are rotationally connected to the inside of the mounting frame at equal intervals, a first cavity is formed in the inside of the transmission roller, a piston plate is slidably connected to the inside of the first cavity, a plurality of uniformly distributed air blowing holes are formed in the side surface of the transmission roller, and a reciprocating screw rod and a fixed rod are fixedly connected to the two side surfaces of the piston plate, respectively. In the application, when the transmission roller rotates, the piston plate in the transmission roller extrudes the air in the inside of the transmission roller, so that the excessive air is sprayed out of the air blowing hole. The air blows the dust on the bottom of the product, at the same time, the reciprocating screw rod also drives the piston block to extrude the air blowing cylinder, so that the air blowing cylinder blows the dust on the top and side surface of the product, and the correcting mechanism corrects the position of the product, so that the product is in the middle of the transmission roller, and the next working procedure is facilitated.

Description

Technical Field

[0001] This invention belongs to the field of conveying devices, and particularly relates to a roller conveying device. Background Technology

[0002] Conveying equipment is machinery that continuously transports and handles goods along a certain route. It is also known as an assembly line or conveyor. Roller conveyors are suitable for conveying various boxes, bags, pallets and other items. They can transport materials with large single-item weights, withstand large impact loads, and have the characteristics of large conveying capacity, high speed, smooth operation and multi-variety diversion conveying.

[0003] In existing methods of conveying products (such as boxed or bagged products) to the bagging or boxing stage via roller conveyors, the position and orientation of each product must be roughly the same to avoid misalignment, which would lead to failure in bagging or boxing. However, currently, products are often placed on roller conveyors either automatically or manually. After exiting the previous process, the product falls onto the conveyor and is then transported to the next process. When the product collides with the rollers, it may change its orientation and position. After passing through multiple roller conveyors, the directional deviation of the product gradually increases, causing it to deviate from its central position. When placing products manually, workers cannot guarantee the accuracy of the placement, which will affect the operation of the next process. Furthermore, after passing through multiple processes, the product will inevitably be contaminated with dust or impurities, affecting its appearance.

[0004] To avoid the aforementioned technical problems, it is indeed necessary to provide a roller conveyor to overcome the deficiencies in the prior art. Summary of the Invention

[0005] The purpose of this invention is to provide a roller conveyor device that solves the problems of inconsistent product positioning and dust contamination on the product.

[0006] This invention is implemented as follows: a roller conveyor device includes a mounting frame, with multiple support legs fixedly connected to the bottom of the mounting frame. A plurality of equally spaced drive rollers are rotatably connected inside the mounting frame. Each drive roller has a first cavity inside, and a piston plate is slidably connected inside the first cavity. A fixing strip is fixedly connected to the side wall of the first cavity. The piston plate has a groove adapted to the fixing strip. A plurality of evenly distributed air holes are formed on the side of the drive roller. A reciprocating screw and a fixing rod are fixedly connected to both sides of the piston plate, respectively. The reciprocating screw and the fixing rod sequentially pass through the drive roller and the mounting frame. A plurality of fixing nuts are fixedly connected to the side of the mounting frame, and each fixing nut is threadedly connected to a plurality of reciprocating screws. The device also includes:

[0007] The transmission mechanism has a second cavity inside both sides of the mounting frame. The transmission mechanism is set in one of the second cavities and is connected between several transmission rollers. The transmission mechanism is used to make the several transmission rollers rotate synchronously.

[0008] A first drive mechanism is mounted on a mounting frame. One end of the first drive mechanism is connected to one end of one of the transmission rollers. The first drive mechanism is used to drive one transmission roller to rotate. This transmission roller can drive other transmission rollers to rotate synchronously through a transmission mechanism.

[0009] A top dust blowing mechanism is installed on the top of the mounting frame. The input end of the top dust blowing mechanism is connected to one end of a reciprocating lead screw or a fixed rod. The top dust blowing mechanism is used to blow dust off the product.

[0010] A straightening mechanism is mounted on a mounting frame and is used to straighten the position of the product.

[0011] In a further technical solution, the transmission mechanism includes a plurality of first sprockets, which are respectively fixedly connected to one end of a plurality of transmission rollers, and a first chain is drivingly connected between the plurality of first sprockets.

[0012] In a further technical solution, the first drive mechanism includes a first motor fixedly mounted on a mounting frame, the output shaft of the first motor being fixedly connected to a second sprocket, one end of one of the transmission rollers being fixedly connected to a third sprocket, and a second chain being driven between the third sprocket and the second sprocket.

[0013] A further technical solution includes a top blowing mechanism comprising a first fixed plate fixedly connected to the top of the mounting frame, an air blowing cylinder fixedly connected to the first fixed plate, an air blowing head inclined downwards connected to one end of the air blowing cylinder near the transmission roller, a piston block slidably connected inside the air blowing cylinder, a connecting rod fixedly connected to the side of the piston block, a first connecting frame fixedly connected to one end of the connecting rod extending out of the air blowing cylinder, the first connecting frame rotatably connected to one end of a reciprocating screw or a fixed rod, and a vent hole opened at one end of the air blowing cylinder, the vent hole and the air blowing head being located on both sides of the piston block respectively.

[0014] In a further technical solution, there are multiple air blowers, air blow heads, piston blocks, and connecting rods, and multiple connecting rods are fixedly connected to a first connecting frame.

[0015] In a further technical solution, there are multiple top blowing mechanisms, and the multiple top blowing mechanisms are symmetrically distributed about two mutually perpendicular central faces of the mounting frame.

[0016] In a further technical solution, the corrective mechanism includes:

[0017] Two support frames are symmetrically fixedly connected to both sides of the mounting frame;

[0018] Two correction components are symmetrically connected to two support frames, and the two correction components correct the position of the product by pushing the two sides of the product.

[0019] The second drive mechanism is connected to the bottom of the mounting bracket. The output end of the second drive mechanism is connected to both correction components. The second drive mechanism is used to drive the two correction components to move synchronously towards or away from each other.

[0020] In a further technical solution, the correction component includes two movable sleeves that pass through and are slidably connected to the support frame. An inner rod is inserted inside each of the two movable sleeves. One end of each of the two inner rods is fixedly connected to the same correction plate, and a compression spring is also connected between the inner rod and the movable sleeve. One end of each of the two movable sleeves is fixedly connected to the same second connecting frame, and the second connecting frame is drively connected to the output end of the second drive mechanism.

[0021] In a further technical solution, the diameter of the inner rod is the same as the inner diameter of the movable sleeve, and air jet holes are provided inside both the inner rod and the straightening plate. The movable sleeve communicates with the outside through the air jet holes.

[0022] In a further technical solution, the second drive mechanism includes a fixed frame, which is fixedly connected to the bottom of the mounting frame. A second motor is fixedly mounted on the top of the fixed frame, and two gears are rotatably connected to the bottom of the fixed frame. The two gears are meshed together. The output shaft of the second motor is fixedly connected to one of the gears. A toggle pin is fixedly connected to the eccentric position at the bottom of each of the two gears. The two toggle pins are slidably connected to one end of each of the two second connecting frames. The second connecting frame has a movable groove for the toggle pins to slide in. The two toggle pins are symmetrically distributed about the perpendicular line connecting the axes of the two gears.

[0023] In a further technical solution, a number of raised rubber strips are fixedly connected to the outer side of the transmission roller. The number of rubber strips are evenly distributed around the axis of the transmission roller, and the number of rubber strips and the number of air holes are staggered.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. The transmission roller drives the piston plate inside to rotate, and the piston plate drives the reciprocating screw and the fixed rod to rotate. Under the action of the fixed nut, the reciprocating screw drives the piston plate and the fixed rod to move horizontally back and forth. The piston plate squeezes the air inside the transmission roller, so that the excess air is ejected from the air blowing hole. This air blows away the dust on the bottom of the product.

[0026] 2. At the same time, the reciprocating screw and the fixed rod will also drive the two first connecting frames connected to them to reciprocate horizontally. The first connecting frames drive the connecting rod to reciprocate, and the connecting rod drives the piston block to reciprocate. When the piston block moves towards the mounting frame, the piston block will squeeze the air in the air blower out of the air blower head, thereby blowing dust off the top of the product.

[0027] 3. Since the total length of the reciprocating screw, piston plate and fixed rod is fixed, the blowing and suction states of the two top blowing mechanisms located on both sides of the mounting frame are opposite. Therefore, at the same time, one blowing head will blow the product, thereby achieving continuous blowing and making the blowing effect better.

[0028] 4. The second motor drives one of the gears to rotate, which in turn drives the other gear to rotate. The gear drives the actuating column to rotate around the gear's axis. The actuating column drives the second connecting frame to reciprocate horizontally, and the two second connecting frames move in opposite directions. The second connecting frame drives the movable sleeve to move, and the movable sleeve drives the inner rod to move through the compression spring. The inner rod drives the straightening plate to move, and the two straightening plates simultaneously push the product from both sides, thereby pushing the product to the middle of the transmission roller, which facilitates the next process.

[0029] 5. When the width of the product is too large, both straightening plates will be obstructed by the product and unable to move. At this time, the movable sleeve will continue to compress the spring to ensure the normal operation of the second drive mechanism. This device can straighten products of different sizes.

[0030] 6. When the inner rod and the movable sleeve move relative to each other, the inner rod will compress the space inside the movable sleeve, and the air inside the movable sleeve will be ejected from the jet hole. This airflow will be sprayed onto the product, thereby blowing away dust from the side of the product, thus improving the dust blowing effect and making the product cleaner. Attached Figure Description

[0031] Figure 1 This is a top-view three-dimensional structural diagram of the present invention;

[0032] Figure 2 This is a bottom-view three-dimensional structural diagram of the present invention;

[0033] Figure 3 This is a schematic diagram of the front cross-sectional structure of the present invention;

[0034] Figure 4This is a three-dimensional structural diagram of the correction component of the present invention;

[0035] Figure 5 This is a front view cross-sectional structural diagram of the correction component of the present invention;

[0036] Figure 6 For the present invention Figure 2 Enlarged structural diagram at point A in the middle;

[0037] Figure 7 This is a side view cross-sectional structural diagram of the present invention;

[0038] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point B;

[0039] Figure 9 For the present invention Figure 7 Enlarged structural diagram at point C;

[0040] Figure 10 This is a three-dimensional structural diagram of the transmission roller of the present invention;

[0041] Figure 11 This is a schematic diagram of the three-dimensional cross-sectional structure of the transmission roller of the present invention.

[0042] In the attached diagram: 1. Mounting bracket; 2. Drive roller; 3. First cavity; 4. Piston plate; 5. Air blowing hole; 6. Reciprocating screw; 7. Fixing rod; 8. Fixing nut; 9. Transmission mechanism; 91. First sprocket; 92. First chain; 10. Second cavity; 11. First drive mechanism; 111. First motor; 112. Second sprocket; 113. Third sprocket; 114. Second chain; 12. Top blowing mechanism; 121. First fixing plate; 122. Air blowing cylinder; 123. Air blowing head; Piston. Block 124, connecting rod 125, first connecting frame 126, vent 127, straightening mechanism 13, support frame 131, straightening assembly 132, movable sleeve 1321, inner rod 1322, straightening plate 1323, compression spring 1324, second connecting frame 1325, air vent 1326, second drive mechanism 133, fixed frame 1331, second motor 1332, gear 1333, actuating column 1334, rubber strip 14. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0044] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0045] like Figure 1-11As shown, a roller conveyor device provided by the present invention includes a mounting frame 1. Multiple support legs are fixedly connected to the bottom of the mounting frame 1. A plurality of equally spaced transmission rollers 2 are rotatably connected inside the mounting frame 1. A first cavity 3 is formed inside each transmission roller 2. A piston plate 4 is slidably connected inside the first cavity 3. A fixing strip is fixedly connected to the side wall of the first cavity 3. A sliding groove adapted to the fixing strip is formed on the piston plate 4. A plurality of evenly distributed air holes 5 are formed on the side of each transmission roller 2. Air guides are fixedly connected to both sides of the piston plate 4. The reciprocating screw 6 and the fixed rod 7 pass sequentially through the transmission roller 2 and the mounting frame 1. Several fixing nuts 8 are fixedly connected to the side of the mounting frame 1, and these fixing nuts 8 are threadedly connected to several reciprocating screws 6. When the transmission roller 2 rotates, it drives the piston plate 4 and the reciprocating screw 6 to rotate. The reciprocating screw 6 moves along the fixing nuts 8, thereby causing the piston plate 4 to move. The piston plate 4 compresses the air inside the first cavity 3, causing the air to be blown out from the air blowing hole 5. This process blows dust off the bottom and sides of the product. The system also includes:

[0046] The transmission mechanism 9 is provided in one of the second cavities 10 on both sides of the mounting frame 1. The transmission mechanism 9 is connected between several transmission rollers 2 and is used to make several transmission rollers 2 rotate synchronously.

[0047] A first drive mechanism 11 is mounted on a mounting frame 1. One end of the first drive mechanism 11 is connected to one end of one of the transmission rollers 2. The first drive mechanism 11 is used to drive one transmission roller 2 to rotate. The transmission roller 2 can drive other transmission rollers 2 to rotate synchronously through a transmission mechanism 9.

[0048] Top blowing mechanism 12 is installed on the top of mounting frame 1. The input end of the top blowing mechanism 12 is connected to one end of reciprocating screw 6 or fixed rod 7. The top blowing mechanism 12 is used to blow dust off the product.

[0049] The straightening mechanism 13 is mounted on the mounting frame 1. The straightening mechanism 13 is used to straighten the position of the product so that the product is located in the middle of the transmission roller 2, which facilitates the operation of the next process.

[0050] In embodiments of the present invention, such as Figure 3 As shown, in a preferred embodiment of the present invention, the transmission mechanism 9 includes a plurality of first sprockets 91, which are respectively fixedly connected to one end of a plurality of transmission rollers 2, and a first chain 92 is drivingly connected between the plurality of first sprockets 91.

[0051] In embodiments of the present invention, such as Figure 9 As shown, in a preferred embodiment of the present invention, the first drive mechanism 11 includes a first motor 111 fixedly mounted on the mounting frame 1, the output shaft of the first motor 111 is fixedly connected to a second sprocket 112, one end of one of the transmission rollers 2 is fixedly connected to a third sprocket 113, and a second chain 114 is driven between the third sprocket 113 and the second sprocket 112.

[0052] In embodiments of the present invention, such as Figure 1 and Figure 7 As shown, in a preferred embodiment of the present invention, the top blowing mechanism 12 includes a first fixing plate 121 fixedly connected to the top of the mounting frame 1. An air blowing cylinder 122 is fixedly connected to the first fixing plate 121. An inclined downward blowing head 123 is connected to one end of the air blowing cylinder 122 near the transmission roller 2. A piston block 124 is slidably connected inside the air blowing cylinder 122. A connecting rod 125 is fixedly connected to the side of the piston block 124. A first connecting frame 126 is fixedly connected to one end of the connecting rod 125 extending out of the air blowing cylinder 122. The first connecting frame 126 is rotatably connected to one end of the reciprocating screw 6 or the fixed rod 7. A vent hole 127 is provided at one end of the air blowing cylinder 122. The vent hole 127 and the blowing head 123 are located on both sides of the piston block 124, which facilitates the venting and replenishment of air in the piston block 124.

[0053] When the drive roller 2 rotates, under the action of the fixing nut 8, the reciprocating screw 6 will drive the piston plate 4 and the fixing rod 7 to move horizontally. The reciprocating screw 6 or the fixing rod 7 will drive the connecting rod 125 to move through the first connecting frame 126. The connecting rod 125 will drive the piston block 124 to move inside the air blowing cylinder 122, thereby causing the piston block 124 to squeeze the air inside the air blowing cylinder 122, so that the air can be blown out from the air blowing head 123, which is convenient for blowing dust off the top and sides of the product.

[0054] In embodiments of the present invention, such as Figure 1 As shown, in a preferred embodiment of the present invention, there are two of each of the air blower 122, air blower head 123, piston block 124 and connecting rod 125. The two connecting rods 125 are fixedly connected to a first connecting frame 126 to increase the blowing area and improve the blowing effect.

[0055] In embodiments of the present invention, such as Figure 1As shown, in a preferred embodiment of the present invention, there are multiple top blowing mechanisms 12, which are symmetrically distributed about two mutually perpendicular central faces of the mounting frame 1. When the reciprocating screw 6 drives the piston plate 4 and the fixed rod 7 to move, one of the two opposing top blowing mechanisms 12 located on both sides of the mounting frame 1 will always blow dust onto the product, thereby achieving continuous dust blowing and making the dust blowing effect better.

[0056] In embodiments of the present invention, such as Figure 3-7 As shown, in a preferred embodiment of the present invention, the corrective mechanism 13 includes:

[0057] Two support frames 131 are symmetrically fixedly connected to both sides of the mounting frame 1;

[0058] Two correction components 132 are symmetrically connected to two support frames 131 respectively. The two correction components 132 correct the position of the product by pushing the two sides of the product.

[0059] The second drive mechanism 133 is connected to the bottom of the mounting frame 1. The output end of the second drive mechanism 133 is connected to both straightening components 132. The second drive mechanism 133 is used to drive the two straightening components 132 to move synchronously towards or away from each other, so that the two straightening components 132 simultaneously straighten the product from both sides of the product, and finally move the product to the middle of the transmission roller 2.

[0060] In embodiments of the present invention, such as Figure 4-5 As shown, in a preferred embodiment of the present invention, the correction component 132 includes two movable sleeves 1321 that pass through and are slidably connected to the support frame 131. An inner rod 1322 is inserted inside each of the two movable sleeves 1321. One end of each inner rod 1322 is fixedly connected to the same correction plate 1323, and a compression spring 1324 is also connected between the inner rod 1322 and the movable sleeve 1321. One end of each movable sleeve 1321 is fixedly connected to the same second connecting frame 1325, and the second connecting frame 1325 is drively connected to the output end of the second drive mechanism 133.

[0061] The second drive mechanism 133 drives two second connecting frames 1325 to move towards each other. The second connecting frames 1325 drive the movable sleeve 1321 to move. The movable sleeve 1321 drives the inner rod 1322 to move through the compression spring 1324. The inner rod 1322 drives the straightening plate 1323 to move. The two straightening plates 1323 simultaneously push the product from both sides, thereby pushing the product to the middle of the transmission roller 2, which facilitates the operation of the next process. When the width of the product is too large, both straightening plates 1323 will be obstructed by the product and cannot move. At this time, the movable sleeve 1321 will continue to squeeze the compression spring 1324 to ensure the normal operation of the second drive mechanism 133. This device can straighten products of different sizes.

[0062] In embodiments of the present invention, such as Figure 5 As shown, in a preferred embodiment of the present invention, the diameter of the inner rod 1322 is the same as the inner diameter of the movable sleeve 1321. Air jet holes 1326 are provided inside both the inner rod 1322 and the straightening plate 1323. The movable sleeve 1321 communicates with the outside through the air jet holes 1326.

[0063] When the inner rod 1322 and the movable sleeve 1321 move relative to each other, the inner rod 1322 will compress the space inside the movable sleeve 1321, and the air inside the movable sleeve 1321 will be ejected from the jet hole 1326. This airflow will be sprayed onto the product, thereby blowing away dust from the side of the product, thus improving the dust blowing effect and making the product cleaner.

[0064] In embodiments of the present invention, such as Figure 6 As shown, in a preferred embodiment of the present invention, the second drive mechanism 133 includes a fixed frame 1331, which is fixedly connected to the bottom of the mounting frame 1. A second motor 1332 is fixedly mounted on the top of the fixed frame 1331. Two gears 1333 are rotatably connected to the bottom of the fixed frame 1331 and mesh with each other. The output shaft of the second motor 1332 is fixedly connected to one of the gears 1333. A toggle post 1334 is fixedly connected to the bottom of each of the two gears 1333 at an eccentric position. The two toggle posts 1334 are slidably connected to one end of each of the two second connecting frames 1325. The second connecting frame 1325 has a movable groove for the toggle posts 1334 to slide. The two toggle posts 1334 are symmetrically distributed about the perpendicular line connecting the axes of the two gears 1333.

[0065] The second motor 1332 drives one of the gears 1333 to rotate, which in turn drives the other gear 1333 to rotate. The gear 1333 drives the actuating column 1334 to rotate around the axis of the gear 1333. The actuating column 1334 drives the second connecting frame 1325 to reciprocate horizontally, thereby continuously correcting the product. The speed of the second motor 1332 can also be adjusted according to the speed at which the transmission roller 2 transmits the product, so that the two straightening plates 1323 can correct each product.

[0066] In embodiments of the present invention, such as Figure 10-11 As shown, in a preferred embodiment of the present invention, a plurality of protruding rubber strips 14 are fixedly connected to the outer side of the transmission roller 2. The plurality of rubber strips 14 are evenly distributed around the axis of the transmission roller 2, and the plurality of rubber strips 14 and the plurality of air holes 5 are staggered, which increases the friction between the transmission roller 2 and the product, while leaving a gap between the product and the air holes 5, so that the air holes 5 can thoroughly blow dust off the bottom of the product, thus making the dust blowing effect better.

[0067] In use, the first motor 111 is turned on, driving the second sprocket 112 to rotate. The second sprocket 112 drives the third sprocket 113 to rotate via the second chain 114. The third sprocket 113 drives a transmission roller 2 to rotate, which in turn drives a first sprocket 91 connected to it to rotate. This first sprocket 91 drives other first sprockets 91 to rotate via the first chain 92. These other first sprockets 91 then drive other transmission rollers 2 connected to them to rotate, thus ensuring that all transmission rollers 2 rotate synchronously. The product is placed on the transmission roller 2 at one end of the mounting frame 1, and the transmission roller 2 moves the product. Simultaneously, the transmission roller 2 drives the piston plate 4 inside it to rotate. The piston plate 4 drives the reciprocating screw 6 and the fixed rod 7 to rotate. Under the action of the fixing nut 8, the reciprocating screw 6 drives the piston plate 4 and the fixed rod 7 to reciprocate horizontally. The piston plate 4 compresses the air inside the transmission roller 2, causing excess air to be ejected from the air blowing hole 5. The air blows away dust from the bottom of the product. At the same time, the reciprocating screw 6 and the fixed rod 7 drive the two first connecting frames 126 connected to them to reciprocate horizontally. The first connecting frame 126 drives the connecting rod 125 to reciprocate, and the connecting rod 125 drives the piston block 124 to reciprocate. When the piston block 124 moves towards the mounting frame 1, it squeezes the air in the air blower 122 out of the air blower head 123, thereby blowing away dust from the top of the product. When the piston block 124 moves away from the mounting frame 1, it draws in outside air to replenish the air blower 122. Since the total length of the reciprocating screw 6, piston plate 4 and fixed rod 7 is fixed, the blowing and suction states of the two top dust blowing mechanisms 12 located on both sides of the mounting frame 1 are opposite. Therefore, at the same time, one air blower head 123 will blow dust from the product, thereby achieving continuous dust blowing and making the dust blowing effect better.

[0068] The second motor 1332 drives one of the gears 1333 to rotate, which in turn drives the other gear 1333 to rotate. The gear 1333 drives the actuating column 1334 to rotate around its axis. The actuating column 1334 drives the second connecting frame 1325 to reciprocate horizontally, and the two second connecting frames 1325 move in opposite directions. The second connecting frame 1325 drives the movable sleeve 1321 to move, and the movable sleeve 1321 drives the inner rod 1322 to move via the compression spring 1324. The inner rod 1322 drives the straightening plate 1323 to move. The two straightening plates 1323 simultaneously push the product from both sides, thereby pushing the product onto the transmission roller. 2. In the middle section, it facilitates the operation of the next process. When the width of the product is too large, both straightening plates 1323 will be obstructed by the product and cannot move. At this time, the movable sleeve 1321 will continue to compress the spring 1324 to ensure the normal operation of the second drive mechanism 133. This device can straighten products of different sizes. At the same time, when the inner rod 1322 and the movable sleeve 1321 move relative to each other, the inner rod 1322 will compress the space inside the movable sleeve 1321. The air inside the movable sleeve 1321 will be ejected from the jet hole 1326. This airflow will be sprayed onto the product, thereby blowing dust off the side of the product, thus making the dust blowing effect better and the product cleaner.

[0069] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0070] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A roller conveyor device, comprising a mounting frame, characterized in that, The mounting frame has several equidistantly distributed transmission rollers internally connected to it. Each transmission roller has a first cavity inside, and a piston plate is slidably connected inside the first cavity. Several evenly distributed air holes are provided on the sides of each transmission roller. A reciprocating screw and a fixed rod are fixedly connected to the two sides of the piston plate, respectively. Both the reciprocating screw and the fixed rod pass through the transmission roller and the mounting frame sequentially. Several fixing nuts are fixedly connected to the sides of the mounting frame, and each fixing nut is threadedly connected to one of the reciprocating screws. The mounting frame also includes: The transmission mechanism has a second cavity inside the side of the mounting frame, and the transmission mechanism is set in the second cavity. The transmission mechanism is connected between several transmission rollers and is used to make the several transmission rollers rotate synchronously. A first drive mechanism is mounted on a mounting frame. One end of the first drive mechanism is connected to one end of one of the transmission rollers. The first drive mechanism is used to drive one of the transmission rollers to rotate. A top dust blowing mechanism is installed on the top of the mounting frame. The input end of the top dust blowing mechanism is connected to one end of a reciprocating lead screw or a fixed rod. The top dust blowing mechanism is used to blow dust off the product. A straightening mechanism is mounted on a mounting frame and is used to straighten the position of the product.

2. The roller conveyor device according to claim 1, characterized in that, The transmission mechanism includes a plurality of first sprockets, which are respectively fixedly connected to one end of a plurality of transmission rollers, and a first chain is drivingly connected between the plurality of first sprockets.

3. The roller conveyor according to claim 1 or 2, characterized in that, The first drive mechanism includes a first motor fixedly mounted on a mounting frame, the output shaft of the first motor being fixedly connected to a second sprocket, one end of one of the transmission rollers being fixedly connected to a third sprocket, and a second chain being driven between the third sprocket and the second sprocket.

4. The roller conveyor device according to claim 1, characterized in that, The top blowing mechanism includes a first fixed plate fixedly connected to the top of the mounting frame. An air blowing cylinder is fixedly connected to the first fixed plate. An inclined downward blowing head is connected to one end of the air blowing cylinder near the transmission roller. A piston block is slidably connected inside the air blowing cylinder. A connecting rod is fixedly connected to the side of the piston block. A first connecting frame is fixedly connected to one end of the connecting rod extending out of the air blowing cylinder. The first connecting frame is rotatably connected to one end of a reciprocating screw or a fixed rod. A vent hole is opened at one end of the air blowing cylinder. The vent hole and the blowing head are located on both sides of the piston block, respectively.

5. The roller conveyor according to claim 4, characterized in that, There are multiple top blowing mechanisms, and the multiple top blowing mechanisms are symmetrically distributed about two mutually perpendicular central faces of the mounting frame.

6. The roller conveyor according to claim 1, characterized in that, The corrective mechanism includes: Two support frames are symmetrically fixedly connected to both sides of the mounting frame; Two correction components are symmetrically connected to two support frames, and the two correction components correct the position of the product by pushing the two sides of the product. The second drive mechanism is connected to the bottom of the mounting bracket. The output end of the second drive mechanism is connected to both correction components. The second drive mechanism is used to drive the two correction components to move synchronously towards or away from each other.

7. The roller conveyor according to claim 6, characterized in that, The correction assembly includes two movable sleeves that pass through and are slidably connected to the support frame. An inner rod is inserted inside each of the two movable sleeves. One end of each inner rod is fixedly connected to the same correction plate, and a compression spring is also connected between the inner rod and the movable sleeve. One end of each movable sleeve is fixedly connected to the same second connecting frame, which is drively connected to the output end of the second drive mechanism.

8. The roller conveyor according to claim 7, characterized in that, The inner rod has the same diameter as the inner diameter of the movable sleeve. Both the inner rod and the straightening plate have air vents inside. The movable sleeve communicates with the outside through the air vents.

9. The roller conveyor according to claim 7, characterized in that, The second drive mechanism includes a fixed frame, which is fixedly connected to the bottom of the mounting frame. A second motor is fixedly mounted on the top of the fixed frame, and two gears are rotatably connected to the bottom of the fixed frame. The two gears are meshed together. The output shaft of the second motor is fixedly connected to one of the gears. A toggle pin is fixedly connected to the eccentric position at the bottom of each of the two gears. The two toggle pins are slidably connected to one end of each of the two second connecting frames. The two toggle pins are symmetrically distributed about the perpendicular line connecting the axes of the two gears.

10. The roller conveyor according to claim 1, characterized in that, Several raised rubber strips are fixedly connected to the outer side of the transmission roller. The rubber strips are evenly distributed around the axis of the transmission roller, and the rubber strips and air holes are staggered.

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