A flow line for correcting trays

Abstract

The utility model relates to a flow line conveying equipment, especially a flow line capable of correcting a tray. The tray flow line used in the existing mattress production process cannot correct the inclined tray, which will affect the subsequent production. Therefore, the utility model provides a flow line capable of correcting a tray, which comprises a rack and two parallel and spaced apart flow water conveying belts arranged on the rack, two sets of correction assemblies with movable blocking pieces arranged on the rack, the two sets of correction assemblies are arranged on the side surfaces of the two flow water conveying belts, the correction assembly works to make the two blocking pieces rise, and the two blocking pieces are arranged on the same vertical surface perpendicular to the forward direction of the flow water conveying belt and resist the edge of the tray in the opposite direction of the forward direction of the flow water conveying belt to correct the tray, and after the tray is corrected, the two blocking pieces drop to release the tray. The utility model corrects the inclined tray through the correction assembly arranged on the flow line, ensures the inclined tray to be corrected, and avoids the tray from affecting the subsequent production due to the inclined conveying of articles.

Description

Technical Field

[0001] This utility model relates to assembly line conveyor equipment, and in particular to an assembly line with a calibrable tray. Background Technology

[0002] In mattress manufacturing, assembly lines are frequently used to transfer and transport goods. Items are placed on pallets and transported along the assembly line with the pallets. If a pallet is tilted, it will affect the receiving of goods in subsequent processes, thus impacting production. Existing pallet transport assembly lines lack a correction design to correct tilted pallets. Relying on manual inspection to identify and correct tilted pallets is time-consuming, labor-intensive, and inefficient. Utility Model Content

[0003] To address the technical problem that existing pallet assembly lines cannot correct skewed pallets, which can affect subsequent production, this invention provides a pallet-correcting assembly line. The assembly line is equipped with a correction component to correct skewed pallets, bringing them back to their correct position relative to the assembly line, thus preventing skewed pallet transport from affecting subsequent production.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows: A pallet-correcting assembly line includes a frame and two parallel, spaced-apart conveyor belts mounted on it. The frame is characterized by two sets of correction components with movable stops, positioned on the sides of the two conveyor belts. When the correction components operate, the two stops rise and, on the same vertical plane perpendicular to the forward direction of the conveyor belts, abut against the edge of the pallet to correct it. After correction, the two stops lower to release the pallet. This utility model corrects skewed pallets transported by the conveyor belts by providing a set of correction components with stops on each side of the two conveyor belts, preventing items placed on the pallets from being skewed and affecting subsequent production processes, thus ensuring the proper delivery of items on the assembly line and the normal operation of subsequent processes. When the two sets of correction components are working, the start-up stops rise. The two stops block the pallet on the same vertical plane perpendicular to the forward direction of the conveyor belt. The edges of the pallet that are tilted and facing the forward direction will successively abut against the two stops. When the edges of the pallet abut against the two stops at the same time, the originally tilted pallet is straightened. The two stops are lowered at the same time, the obstruction to the pallet is released, and the straightened pallet can continue to be conveyed forward with the conveyor belt.

[0005] As a further improvement and supplement to the above technical solution, this utility model adopts the following technical measures: The stop is located on the inner side of the conveyor belt and is rotatably connected to the frame. The stop can be rotated to raise the end away from the rotatable connection position to abut against the tray. The correction component also includes a drive device that is pulsatorically connected to the stop. The drive device drives the stop to rotate around the rotatable connection position. The stop is located on the inner side of the conveyor belt to ensure that it can touch and block the tray after being raised. The drive device drives the stop to move in a coordinated manner through forward and reverse rotation, so that the end of the stop away from the rotatable connection position rises to abut against the tray or lowers to release the tray. The raising of the end of the stop can be achieved by rotating and tilting or vertical lifting and lowering. Rotating and tilting has a better correction effect on the tray than vertical lifting and lowering. When part of the tray slightly exceeds the stop, the rotating and tilting stop can be rotated and lowered to push the tray back and abut against it again. The vertically lifting stop cannot readjust the tray through lifting and lowering.

[0006] The driving device is a telescopic cylinder. The middle section of the stop is rotatably connected to the frame. One end of the stop can be raised to abut the tray, and the other end of the stop is hinged to the piston rod of the telescopic cylinder. The cylinder body of the telescopic cylinder is hinged to the frame. When the telescopic cylinder is working, the cylinder body swings around the hinged end, and the piston rod extends and retracts, pushing and pulling one end of the stop hinged to the piston rod, so that the stop can rotate back and forth around the rotatable connection position with the frame, thereby raising or lowering the other end of the stop.

[0007] The stop is composed of a baffle plate and a transmission plate extending in the same direction, fixedly connected. One end of the baffle plate and one end of the transmission plate are fixedly connected to the frame via a rotating assembly. The other end of the baffle plate can be raised to abut against the tray, and the other end of the transmission plate is hinged to the piston rod. The baffle plate and transmission plate extending in the same direction are fixedly connected to the frame via the rotating assembly to form the stop, and the rotating assembly is used to achieve a rotatable connection with the frame. The two ends of the baffle plate and the transmission plate away from the rotating assembly serve as the working part for raising and blocking the tray and the transmission part for hinged piston rod, respectively.

[0008] The rotating assembly includes a transmission sleeve, a bearing, and a rotating support shaft. A baffle and a transmission plate each have openings at their ends and are tightly fitted onto the outside of the transmission sleeve. One end of the rotating support shaft passes through the transmission sleeve via a bearing, and the other end of the rotating support shaft is fixed to the frame. The baffle and transmission plate are tightly fitted onto the same transmission sleeve through the end openings, forming a fixed baffle. The transmission sleeve is rotatably connected to one end of the rotating support shaft via a bearing, while the other end of the rotating support shaft is fixed to the frame, thus achieving a rotatable connection between the baffle and transmission plate baffle and the frame.

[0009] The conveyor belt is a transmission chain or belt horizontally mounted on a frame. The frame is equipped with sprockets or pulleys that work in conjunction with the transmission chain or belt. These sprockets or pulleys are connected to a drive motor. The conveyor belt can be a transmission chain or belt horizontally mounted on a frame, driven by corresponding sprockets or pulleys, which are then driven by a motor.

[0010] Each side of the frame is equipped with a set of protective guide structures to match the drive chain on the same side. The protective guide structure includes a protective cavity and a guide rail extending in the same direction as the drive chain. Both ends of the protective cavity and the guide rail are open. The upper chain of the drive chain is movable on the guide rail, and the lower chain is movable within the protective cavity. The drive chain is a multi-layered chain, and the guide rail has multiple parallel grooves to match the chain plates of the multi-layered chain. The protective structures on both sides of the frame cooperate to protect the drive chain on the same side during normal operation. The upper chain of the drive chain is limited to move on the corresponding guide rail, and the lower chain moves within the corresponding protective cavity. Both ends of the guide rail and the protective cavity are open, allowing the upper and lower layers of the drive chain to circulate within the guide rail and the protective cavity. The multi-layered drive chain has a higher load capacity and more stable transmission performance, suitable for long-term continuous transport of heavy-duty palletized materials.

[0011] The frame is equipped with a position detector capable of detecting tray skew. When the position detector detects tray skew, it activates a correction assembly to raise two stops to correct the tray. The position detector detects whether the tray is skewed; if skew is detected, the correction assembly is activated to raise two stops to correct the tray.

[0012] The two parallel, spaced-apart conveyor belts are connected by a third conveyor belt, and all three conveyor belts have the same construction. By adding a third conveyor belt in the middle, the three conveyor belts work together, improving the stability of pallet transport, and the identical structure of all three conveyor belts simplifies the design.

[0013] The frame is equipped with a reversing conveyor mechanism between two parallel adjacent conveyor belts, which can change the pallet conveying direction. The reversing conveyor mechanism includes a lifting platform and a second-direction conveying device mounted on it. When the lifting platform operates, it raises the second-direction conveying device to lift the pallet away from the conveyor belt. The second-direction conveying device then moves the pallet across a plane above the conveyor belt. The function of the reversing conveyor mechanism is to adjust the pallet's conveying path. By first raising and then conveying, it changes the pallet's conveying path, allowing the pallet to be conveyed at a higher position above the conveyor belt, thus achieving reversing the pallet's conveying direction to meet the needs of adjusting the pallet's conveying direction. When the lifting platform operates, it can lift the second-direction conveying device, which is originally lower than the conveyor belt, to lift the pallet. After the pallet is lifted and detached from the conveyor belt, the second-direction conveying device conveys the pallet at a higher position. After the pallet leaves the second-direction conveying device, the lifting platform lowers the second-direction conveying device back below the conveyor belt.

[0014] The beneficial technical effects of this utility model are as follows: By setting a set of correction components with stops on each side of the two conveyor belts, the skewed pallets conveyed by the conveyor belts are corrected, preventing the items placed on the pallets from being skewed and affecting the production of subsequent processes. This ensures that the items are conveyed to the correct position on the production line and that subsequent processes are normal. The correction can work repeatedly at a set time, or it can work only when a position detector detects that the pallet is skewed. At the same time, a protective guide structure is provided for the conveyor belts to protect them and limit their movement. Attached Figure Description

[0015] Figure 1 : A schematic diagram of the structure of this utility model.

[0016] Figure 2 : Schematic diagram of the correction component described in this utility model.

[0017] Figure 3 : Exploded view of the correction component structure described in this utility model.

[0018] Figure 4 : Schematic diagram of the conveyor belt described in this utility model.

[0019] Figure 5 : Front view of the tray.

[0020] Figure 6 : Schematic diagram of the bottom of the tray.

[0021] Figure 7 : Diagram of tray transfer.

[0022] Figure 8 : Figure 7 Enlarged view of part A.

[0023] In the diagram: 1. Frame, 2. Conveyor belt, 3. Telescopic cylinder, 4. Piston rod, 5. Stop, 5-1. Baffle plate, 5-2. Transmission plate, 6. Transmission sleeve, 7. Bearing, 8. Rotary support shaft, 9. Pin, 10. Sprocket, 11. Protective cavity, 12. Guide rail, 12-1. Groove, 13. Upper chain, 14. Lower chain, 15. Transmission shaft, 16. Position detector, 17. Pallet body, 18. Support base, 19. Roller, 20. Guide post, 21. Limit guide rail. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0025] As shown in Figures 1-4, this utility model is a pallet straightening assembly line, comprising a frame 1 and two parallel, spaced-apart conveyor belts 2 mounted on it. The conveyor belts 2 can be transmission chains or belts placed horizontally on the frame 1. The frame 1 is equipped with sprockets 10 that work with the transmission chains or pulleys that work with the belts. The sprockets or pulleys are connected to a drive motor. In this embodiment, the conveyor belts are preferably transmission chains. The frame 1 is also equipped with two sets of straightening components with movable stops 5. The two sets of straightening components are located on the sides of the two conveyor belts 2. During operation, the two stops 5 of the straightening components rise and abut against the edge of the pallet in the opposite direction of the conveyor belt's forward movement on the same vertical plane perpendicular to the forward direction of the conveyor belt 2, thus correcting any skewed pallets. After the pallet is corrected, the two stops 5 simultaneously descend to release the pallet, which then continues to move forward with the conveyor belt. The pallet is... Figure 5 and Figure 6 The forklift pallet shown includes a pallet body 17 and multiple support seats 18 with fork holes on its bottom surface. When the forklift pallet is placed on the drive chain, the support seats on the bottom surface of the pallet body rest on the drive chain. In addition, the assembly line also includes... Figure 7 and Figure 8 The limiting assembly shown is for preventing the pallet from detaching from the drive chain belt. The limiting assembly includes two limiting guide rails 21 fixed on both sides of the frame 1 along the conveying direction. The extension direction of the limiting guide rails 21 is parallel to the pallet conveying direction. A row of guide posts 20 is provided on the limiting guide rails 21 along the length direction. Each guide post is equipped with a roller 19 that can rotate in the horizontal direction. When the pallet is placed on the drive chain belt for conveying, the support seats 18 on both sides of the bottom surface of the pallet body 17 move forward next to the row of rollers 19 on the same side. The two rows of rollers can limit the pallet by contacting the support seats to prevent the pallet from deviating too much and slipping off the drive chain belt. A certain gap is left between the pallet and the two rows of rollers during normal conveying.

[0026] This invention features a set of corrective components with stops on the inner sides of two conveyor belts to correct skewed pallets transported on the conveyor belts. This ensures that the pallets are aligned and free of slight skew before entering a specific position in a particular processing step, preventing pallet skew from affecting subsequent processes. When a pallet is skewed, its front edge facing the direction of the conveyor belt is also skewed. The side with the edge slanted forward will first encounter a stop and be blocked, while the other side with the edge slanted backward can continue to move forward with the conveyor belt until it is blocked by another stop. Both stops simultaneously press against the front edge of the pallet, making the front edge perpendicular to the direction of the conveyor belt, thus straightening the originally skewed pallet. Then, the raised parts of the two stops simultaneously lower to release the obstruction and allow the straightened pallet to pass.

[0027] Furthermore, the stop 5 is located inside the conveyor belt 2 and rotatably connected to the frame 1. The stop 5 can be rotated to raise its end away from the rotatable connection position to abut against the tray. The straightening assembly also includes a drive device pulsatingly connected to the stop 5. The drive device drives the stop 5 to rotate around the rotatable connection position. The stop is located inside the conveyor belt, ensuring that it can touch and block the tray after being raised. The drive device can be a cylinder using a piston rod connected to the stop. The piston rod extends or retracts, driving the stop to rotate in both directions, raising the end of the stop away from the rotatable connection position to abut against the tray or lowering it to release the tray. Alternatively, the drive device can be a motor driving the stop, with the motor rotating in both directions synchronously during operation.

[0028] like Figure 2 and Figure 3 As shown, the middle section of the stop 5 is rotatably connected to the frame 1. One end of the stop 5 can be raised to abut against the tray, and the other end of the stop 5 is hinged to the piston rod 4 of the telescopic cylinder 3. The telescopic cylinder 3 is hinged to the frame 1 via a pin 9. In this embodiment, the stop 5 is composed of a stop plate 5-1 and a transmission plate 5-2 extending in the same direction. One end of the stop plate 5-1 and one end of the transmission plate 5-2 are fixedly connected to the frame 1 via a rotating assembly. The other end of the stop plate 5-1 can be raised to abut against the tray, and the other end of the transmission plate 5-2 is hinged to the piston rod 4. The rotating assembly includes a transmission sleeve 6, a bearing 7, and a rotating support shaft 8. The stop plate 5-1 and the transmission plate 5-2 are respectively fitted with holes at their ends and tightly fitted outside the transmission sleeve 6. One end of the rotating support shaft 8 passes through the transmission sleeve 6 via the bearing 7, and the other end of the rotating support shaft 8 is fixed to the frame 1.

[0029] like Figure 4As shown, to protect the transmission chain and guide its movement trajectory, each side of the frame 1 is equipped with a set of protective guide structures to match the transmission chain on the same side. The protective guide structure includes a protective cavity 11 and a guide rail 12 extending in the same direction as the transmission chain. The protective cavity 11 and the guide rail 12 are open at both ends. The upper chain of the transmission chain is movably mounted on the guide rail 12, and the lower chain of the transmission chain is movably mounted in the protective cavity 11. The transmission chain is a multi-layer chain, and in this embodiment, it is a double-layer chain. The guide rail 12 has multiple parallel grooves 12-1 to match the chain plates of the multi-layer chain. In this embodiment, the protective cavity is a rectangular cross-section steel pipe cavity. The steel pipe sidewalls where the two long sides of the rectangle are located are erected on the frame, and the guide rail 12 is fixed on the top wall of the steel pipe where the short side of the rectangle is located. During operation, the steel pipe and the transmission chain are matched. The lower chain of the transmission chain always runs through the steel pipe cavity, i.e., the protective cavity, and is protected. The guide rail on the top wall of the steel pipe limits the movement of the upper chain.

[0030] like Figure 1 The frame 1 shown is equipped with two position detectors 16 that can detect tray tilt. When the position detectors 16 detect tray tilt, the correction assembly is activated to raise the two stops 5 to correct the tray. Two tilt-detecting sensors identify the state of the tray, and when tray tilt is detected, a signal is sent to activate the telescopic cylinder. Using position detectors to detect the emitted signal is existing technology.

[0031] To further improve the stability of pallet conveying, such as Figure 1 As shown, a conveyor belt 2 is provided between two parallel and separated conveyor belts 2. The three conveyor belts 2 have the same structure and are all drive chain belts. The sprockets of the three drive chain belts are connected to the same drive shaft 15 to keep them synchronized. The drive shaft 15 is connected to the drive motor through a reducer. The drive motor can drive the three drive chain belts to work synchronously.

[0032] Furthermore, to facilitate pallet reversal and adjustment of the transport path, the frame 1 is equipped with a reversing conveyor mechanism between two parallel adjacent conveyor belts 2, which can change the pallet transport direction. The reversing conveyor mechanism includes a lifting platform and a second-direction conveying device mounted on it. When the lifting platform operates, it raises the second-direction conveying device to lift the pallet away from the conveyor belt 2. When the second-direction conveying device operates, it drives the pallet to be transported on a plane above the conveyor belt 2. The reversing conveyor mechanism adjusts the pallet transport path by first lifting and then transporting, allowing the pallet to be transported at a higher position above the conveyor belt, thereby reversing the pallet transport and meeting the needs of pallet adjustment and transport path adjustment. The lifting platform first lifts the second-direction conveying device, which was originally lower than the conveyor belt, to lift the pallet. The pallet is lifted and detached from the conveyor belt. Then, the second-direction conveying device transports the pallet at a higher position. After the pallet is transported away from the second-direction conveying device, the lifting platform descends, and the second-direction conveying device returns to its initial position, which was lower than the conveyor belt. Both the lifting platform and the second-direction conveying device are existing technologies. The second-direction conveying device can use common transmission chains, transmission belts, or transmission rollers. It can even be connected to the lifting platform through a rotating device, and the conveying direction can be changed by rotating the rotating device in the horizontal plane.

Claims

1. A pallet-alignable assembly line, comprising a frame (1) and two parallel, spaced-apart conveyor belts (2) disposed thereon, characterized in that: The frame (1) is equipped with two sets of correction components with movable stops (5). The two sets of correction components are located on the sides of the two conveyor belts (2). When the correction components work, the two stops (5) are raised and pressed against the edge of the pallet in the opposite direction of the conveyor belt (2) on the same vertical plane perpendicular to the forward direction of the conveyor belt (2) to correct it. After the pallet is corrected, the two stops (5) are lowered to release the pallet.

2. The correctable tray assembly line according to claim 1, characterized in that: The stop (5) is located on the inner side of the conveyor belt (2) and is rotatably connected to the frame (1). The stop (5) can be rotated to raise the end away from the rotatable connection position to abut against the tray. The correction assembly also includes a drive device that is pulsatorically connected to the stop (5). The drive device drives the stop (5) to rotate around the rotatable connection position.

3. The correctable tray assembly line according to claim 2, characterized in that: The middle section of the stop (5) is rotatably connected to the frame (1). One end of the stop (5) can be raised to abut against the tray. The other end of the stop (5) is hinged to the piston rod (4) of the telescopic cylinder (3). The cylinder body of the telescopic cylinder (3) is hinged to the frame (1).

4. The correctable tray assembly line according to claim 3, characterized in that: The stop (5) is composed of a stop plate (5-1) and a transmission plate (5-2) extending in the same direction. One end of the stop plate (5-1) and one end of the transmission plate (5-2) are fixedly connected by a rotating assembly that is rotatably connected to the frame (1). The other end of the stop plate (5-1) can be raised to abut against the tray, and the other end of the transmission plate (5-2) is hinged to the piston rod (4).

5. The correctable tray assembly line according to claim 4, characterized in that: The rotating assembly includes a transmission sleeve (6), a bearing (7), and a rotating support shaft (8). The baffle (5-1) and the transmission plate (5-2) are respectively fitted with holes at their ends and tightly fitted outside the transmission sleeve (6). One end of the rotating support shaft (8) passes through the bearing (7) and is inserted into the transmission sleeve (6). The other end of the rotating support shaft (8) is fixed to the frame (1).

6. The correctable tray assembly line according to claim 5, characterized in that: The conveyor belt (2) is a transmission chain or belt placed horizontally on the frame (1). The frame (1) is provided with a sprocket (10) that is matched with the transmission chain or a pulley that is matched with the transmission belt. The sprocket or pulley is connected to a drive motor.

7. The correctable tray assembly line according to claim 6, characterized in that: The frame (1) has a set of protective guide structures on each side to match the transmission chain on the same side. The protective guide structure includes a protective cavity (11) and a guide rail (12) extending in the same direction as the transmission chain. The protective cavity (11) and the guide rail (12) are open at both ends. The upper chain of the transmission chain is moved and set on the guide rail (12), and the lower chain of the transmission chain is moved and set in the protective cavity (11). The transmission chain is a multi-layer chain. The guide rail (12) has multiple parallel grooves (12-1) to match the chain plates of the multi-layer chain.

8. The correctable tray assembly line according to claim 1, characterized in that: The frame (1) is equipped with a position detector (16) that can detect tray tilt. When the position detector (16) detects tray tilt, the correction component is activated to raise the two stops (5) to correct the tray.

9. The correctable tray assembly line according to claim 1, characterized in that: The two parallel and separated conveyor belts (2) are connected by a conveyor belt (2), and the three conveyor belts (2) have the same structure.

10. The production line for a correctable tray according to any one of claims 1 to 9, characterized in that: The frame (1) is provided with a reversing conveyor mechanism that can change the pallet conveying direction between two parallel adjacent conveyor belts (2). The reversing conveyor mechanism includes a lifting platform and a second direction conveying device on it. When the lifting platform is working, it raises the second direction conveying device to lift the pallet away from the conveyor belt (2). When the second direction conveying device is working, it drives the pallet to be conveyed on the plane above the conveyor belt (2).

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