A cardboard box high and low station switching table

Abstract

This utility model discloses a carton high / low station switching platform, including a conveyor belt frame, rollers mounted on the conveyor belt frame, a groove in the ground, a lifting mechanism within the groove, a bracket on the lifting mechanism, two rows of rollers symmetrically arranged on the bracket, and a forklift movement area formed on the surface of the bracket between the two rows of rollers. The bracket with the rollers is raised and lowered by the lifting mechanism. This solution solves the problem of manual forklifts being unable to connect and move due to excessively high pallets on the conveyor belt, allowing pallets carrying stacked corrugated cartons on the conveyor belt to be smoothly transferred to a manual forklift for secondary movement.

Description

Technical Field

[0001] This utility model relates to the technical field of corrugated cardboard box conveyor belts, specifically to a cardboard box high and low station switching table. Background Technology

[0002] Currently, after corrugated cardboard boxes are processed, they are stacked onto plastic pallets using a combination of robotic arms and conveyor belts. Once a certain height is reached, the pallets are moved to one end via the conveyor belt, and finally moved again by a forklift for centralized storage. Conveyor belts typically consist of a frame and rollers. Due to the need to install drive motors and other structures at the bottom of the frame, the overall frame height is generally over 30cm. Therefore, when moving stacked cardboard boxes with pallets at one end of the conveyor belt, manual forklifts often lack sufficient lifting height to directly connect with the pallets. Even with the forklift's legs fully extended, a height difference remains. When the height difference is small, the pallets can be forcibly moved via the conveyor belt, but this method is unstable. Therefore, electric or small forklifts are generally required. However, these forklifts are expensive and space-consuming, while small forklifts require professional drivers, making them less accessible and less flexible. To solve this problem and enable ordinary manual hydraulic forklifts to perform secondary movement of stacked cartons with pallets, a lifting mechanism needs to be designed at one end of the conveyor belt. This lifting mechanism eliminates the height difference caused by the conveyor belt frame, allowing the stacked cartons with pallets to be moved smoothly onto the manual forklift. Summary of the Invention

[0003] In order to solve one or more technical problems existing in the prior art, the purpose of this application is to provide a carton high and low station switching platform, which enables pallets with stacked corrugated cartons on the conveyor belt to be smoothly transferred to a manual forklift for secondary movement.

[0004] To solve the aforementioned technical problems, this application adopts the following technical solution: A carton high / low station switching platform includes a conveyor belt frame and rollers mounted on the conveyor belt frame. The platform features a groove on the ground, a lifting mechanism within the groove, a bracket mounted on the lifting mechanism, two rows of rollers symmetrically mounted on the bracket, and a forklift movement area formed on the surface of the bracket between the two rows of rollers. The bracket with the rollers is lifted and lowered via the lifting mechanism.

[0005] Preferably, the bracket between the two rows of rolling shafts is provided with an upwardly protruding platform, and the upper end surface of the rolling shaft is 3-6mm higher than the top surface of the platform.

[0006] Preferably, the bracket between the two rows of rolling shafts is provided with two upwardly protruding platforms.

[0007] Preferably, a row of rollers is provided between the two platforms.

[0008] Preferably, each of the two rows of rolling shafts is provided with a reverse stop mechanism. The reverse stop mechanism can be flipped outwards after being subjected to force, but cannot be flipped in the direction of the conveyor belt frame.

[0009] Preferably, the reverse stop mechanism includes a bracket with its bottom fixed on the bracket, a rotating shaft on the bracket, a triangular stop block mounted on the rotating shaft, and a stop block on the bracket for reverse stop of the triangular stop block. In normal operation, one side of the lower end of the triangular stop block contacts the stop block and is reverse-stopped. The top of the triangular stop block protrudes upward and its long side is vertically arranged.

[0010] Preferably, the distance between the triangular stop block and the platform is 4-6 cm, and the reverse stop mechanism is installed after removing one of the rolling shafts.

[0011] Preferably, the lifting mechanism is a scissor lift electric or hydraulic lift.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: Once the pallet with cartons is moved to one end of the conveyor belt frame, the lifting mechanism raises the tray upwards, aligning the height of the rollers with the roller shafts for a smooth transition. After the transition, the lifting mechanism can smoothly lower the pallet, allowing the manual forklift's forklift to smoothly insert its pins into the bottom of the pallet and move it to the designated area. Throughout the operation, the pallets on the conveyor belt frame are connected and transitioned via two rows of liftable roller shafts, effectively preventing the cartons stacked on the pallet from tilting or tipping over. Moreover, the entire operation can be carried out using a manual forklift, eliminating the need to purchase an electric forklift or have dedicated personnel operating it, resulting in greater flexibility and lower transportation costs. Attached Figure Description

[0013] Figure 1 This is a side sectional view of the present invention, showing the structure inside the groove; Figure 2 This is a top view of the present invention; Figure 3 This is a schematic diagram of the reverse stop mechanism in this utility model; In the diagram: 1. Conveyor belt frame; 2. Roller; 3. Bracket; 4. Reverse stop mechanism; 41. Rotating shaft; 42. Support; 43. Stop block; 44. Triangular stop block; 5. Platform; 6. Rolling shaft; 7. Groove; 8. Lifting mechanism; 81. Driver; 82. X-shaped lifting bracket; 83. Slide rail; 9. Forklift moving area. Detailed Implementation

[0014] The present application will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0015] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0016] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class, without limiting the number of objects; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0017] like Figure 1 and Figure 2 As shown, a carton high and low station switching platform includes a conveyor belt frame 1, rollers 2 mounted on the conveyor belt frame 1, a groove 7 on the ground, a lifting mechanism 8 within the groove 7, a bracket 3 mounted on the lifting mechanism 8, two rows of rollers 6 symmetrically mounted on the bracket 3, and a forklift movement area 9 formed on the surface of the bracket 3 between the two rows of rollers 6. The bracket 3 with the rollers 6 is lifted and lowered by the lifting mechanism 8.

[0018] In actual operation, after the corrugated boxes are processed and stacked onto pallets by a stacker crane, the pallets with corrugated boxes are transported to the discharge end of the conveyor belt via rollers 2 on the conveyor belt frame 1. Because the pallets are high off the ground, manual forklifts cannot insert into the bottom of the pallets for movement. Therefore, a carton height-low position switching platform is added to the discharge end of the conveyor belt. During installation, a groove 7 is machined in the ground for installing the carton height-low position switching platform. The platform consists of a lifting mechanism 8, a bracket 3, and two rows of rollers 6. Under normal circumstances, the entire device is located within the groove 7, and the upper surface of the forklift movement area 9 is basically flush with the ground. During transport, when the pallet with cartons moves to one end of the conveyor belt frame 1, the lifting mechanism 8 controls the bracket 3 to rise, causing the rollers 6 to... With the height of roller 2 aligned, the pallet moves forward via roller 2 and enters the two rows of rollers 6. Once the pallet is fully on the two rows of rollers 6, the lifting mechanism 8 descends to its initial position. At this point, the forklift's pins can be pushed along the forklift's moving area 9 and onto the bracket 3, with the pins positioned at the bottom of the pallet. The pallet is then lifted by shaking the forklift and moved a second time to the designated area. Throughout the entire operation, the pallets on the conveyor belt frame 1 are connected and transitioned via the two rows of liftable rollers 6, effectively preventing the cartons stacked on the pallet from tilting or tipping over. Moreover, the entire operation can be carried out by a manual forklift for secondary transport, eliminating the need to purchase an electric forklift or have dedicated personnel to operate it, resulting in greater flexibility and lower transportation costs.

[0019] A further improvement is that the bracket 3 between the two rows of rolling shafts 6 is provided with an upwardly protruding platform 5, and the upper end surface of the rolling shaft 6 is 3-6mm higher than the top surface of the platform 5.

[0020] Because the carton height-low station switching platform is an added structure, to facilitate forklift use, the surface of the forklift movement area 9 must be flush with the ground. This results in the two rows of rollers 6 protruding upwards, creating a raised area on the ground. To solve this problem, an upwardly protruding platform 5 is installed on the bracket 3 between the two rows of rollers 6. One end of the roller 6 is rotatably connected to the side of the platform 5, ensuring that the upper surface of the roller 6 is 3-6mm higher than the top surface of the platform 5. With this structure, the added portion is normally embedded in the groove 7, making the raised area above the ground negligible. This does not increase the area of ​​the raised area on the ground, does not affect the work on the production workshop floor, and ensures the overall flatness of the upper surface. In particular, the fact that the roller 6 is higher than the top surface of the platform 5 does not affect the rolling of the pallet.

[0021] A further improvement is made in that the bracket 3 between the two rows of rolling shafts 6 is provided with two upwardly protruding platforms 5; and a row of rolling shafts 6 is provided between the two platforms 5.

[0022] Two upward-protruding platforms 5 are installed on the bracket 3 between the two rows of rolling shafts 6. The width of the two platforms 5 is generally slightly wider than the width of the forklift's prongs, and the distance between their center lines is consistent with the distance between the center lines of the two prongs. When the forklift is inserted, it only needs to ensure that the two prongs move along the two platforms 5 to maintain the position. This limits the insertion position of the forklift, thereby preventing the forklift from tipping over due to instability caused by operational errors. At the same time, the gap between the two platforms 5 is filled by a row of rolling shafts 6, ensuring overall flatness and the flexibility of the pallet's rolling during transition, preventing jamming.

[0023] A further improvement is made by providing a reverse stop mechanism 4 in each of the two rows of rolling shafts 6. The reverse stop mechanism 4 can be flipped outwards after being subjected to force, but cannot be flipped in the direction of the conveyor belt frame 1.

[0024] To prevent the pallet from rolling backwards during outward movement, a reverse stop mechanism 4 is installed in each of the two rows of rolling shafts 6. The reverse stop mechanism 4 can flip outwards under force but cannot flip in the direction of the conveyor belt frame 1. That is, when the pallet moves outwards, the reverse stop mechanism flips outwards to ensure that the pallet moves outwards normally. When backward movement occurs, the two reverse stop mechanisms 4 can lock the bottom of the pallet in time to prevent the pallet from rolling backwards.

[0025] Further improvements include, for example Figure 3 As shown, the reverse stop mechanism 4 includes a bracket 42 with its bottom fixed on the bracket 3, a rotating shaft 41 on the bracket 42, a triangular stop 44 mounted on the rotating shaft, and a stop block 43 on the bracket 42 for reverse stop of the triangular stop 44. In normal operation, one side of the lower end of the triangular stop 44 contacts the stop block 43 and is reverse-stopped. The top of the triangular stop 44 protrudes upward and its long side is vertically arranged.

[0026] Under normal circumstances, the triangular stop 44 is in a vertically downward position due to the gravity at its lower end, with its outer inclined surface in contact with the stop block 43 and its top protruding upward by about 5 cm. When the outer inclined surface of the triangular stop 44 is subjected to a pushing force, it cannot be flipped due to the stop block 43 at the bottom. However, when the vertical side is subjected to an outward force, it can rotate along the rotation axis 41, causing the top protrusion to flip outward and lower itself to be flush with or even below the upper surface of the rolling shaft 6.

[0027] A further improvement is made in that the distance between the triangular stop block 44 and the platform 5 is 4~6cm, and the reverse stop mechanism 4 is installed after removing one of the rolling shafts 6.

[0028] The triangular stop 44 can also correct the forklift's position, preventing excessive tilting of the forklift's insertion feet. Specifically, since the forklift moves towards the conveyor belt frame 1 for insertion, the distance between the triangular stop 44 and the platform 5 is 4-6 cm. If the forklift's insertion feet contact the triangular stop 44 during insertion, it cannot continue to push inward. The triangular stop 44 can quickly determine whether the tip of the insertion foot has disengaged from the platform 5, facilitating adjustment and ensuring the forklift's insertion feet are promptly aligned with the designated trajectory. The reverse stop mechanism 4 is installed by removing one of the rolling shafts 6, ensuring both operational stability and sufficient installation space, and the absence of one shaft does not affect rolling efficiency.

[0029] A further improvement is that the lifting mechanism 8 adopts a scissor-type electric or hydraulic lift.

[0030] The lifting mechanism 8 adopts a scissor-type electric or hydraulic lift, which mainly plays a lifting role. This mechanism is a common mechanism with a wide range of options and mature technology. It generally consists of two slide rails 83 installed at the bottom of the groove 7, an X-shaped lifting bracket 8242 with both ends slidably connected to the slide rails 83 and the bottom of the bracket 3, and a driver 81. The driver 81 generally adopts a structure such as a motor or hydraulic cylinder. The driver 81 controls the X-shaped lifting bracket 8242 to lift the bracket 3 in parallel.

[0031] The above embodiments are merely preferred embodiments of this application and should not be construed as limiting the scope of protection of this application. Any non-substantial changes and substitutions made by those skilled in the art based on this application shall fall within the scope of protection claimed by this application.

Claims

1. A carton high-low station switching table, comprising a conveying belt frame (1), a roller shaft (2) arranged on the conveying belt frame (1), characterized in that: It also includes a groove (7) on the ground, a lifting mechanism (8) in the groove (7), a bracket (3) on the lifting mechanism (8), two rows of rolling shafts (6) symmetrically arranged on the bracket (3), and a forklift moving area (9) formed on the surface of the bracket (3) between the two rows of rolling shafts (6). The bracket (3) with the rolling shafts (6) is lifted and lowered by the lifting mechanism (8).

2. A high-low station changeover table according to claim 1, characterized in that: The bracket (3) between the two rows of rolling shafts (6) is provided with an upwardly protruding platform (5), and the upper end surface of the rolling shaft (6) is 3-6mm higher than the top surface of the platform (5).

3. A high-low station changeover table according to claim 2, characterized in that: The bracket (3) between the two rows of the rolling shafts (6) is provided with two upwardly protruding platforms (5).

4. A high-low station changeover table according to claim 2, characterized in that: A row of rollers (6) is provided between the two platforms (5).

5. A high-low station changeover table according to any one of claims 2 to 4, characterized in that: Each of the two rows of rolling shafts (6) is provided with a reverse stop mechanism (4). The reverse stop mechanism (4) can be flipped outward after being subjected to force, but cannot be flipped in the direction of the conveyor belt frame (1).

6. A high-low station changeover table according to claim 5, characterized in that: The reverse stop mechanism (4) includes a bracket (42) with its bottom fixed on the bracket (3), a rotating shaft (41) on the bracket (42), a triangular stop (44) mounted on the rotating shaft (41), and a stop block (43) on the bracket (42) for reverse stop of the triangular stop (44). Under normal conditions, the lower end of the triangular stop (44) contacts the stop block (43) and is reverse-stopped. The top of the triangular stop (44) protrudes upward and its long side is set vertically.

7. A high-low station changeover table according to claim 6, characterized in that: The distance between the triangular stop block (44) and the platform (5) is 4~6cm. The reverse stop mechanism (4) is installed after removing one of the rolling shafts (6).

8. A high-low station changeover table according to claim 1, characterized in that: The lifting mechanism (8) is a scissor lift electric or hydraulic lift.

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