Intermittent-free cardboard automatic stacking machine

Abstract

The utility model discloses a kind of automatic stacking machines of no intermittent paperboard, including mounting bracket, lifting frame, conveying telescopic belt line and alignment device, conveying telescopic belt line one end is slidably installed on mounting bracket, the other end is equipped with lifting rod and lifting frame connection, lifting frame includes support frame and the moving frame that is vertically slid on support frame, lifting rod both ends are installed on moving frame, adjustable baffle is equipped on moving frame, still include tray switching mechanism and buffer assembly, buffer assembly includes buffer baffle and the first cylinder of control its opening and closing;Tray switching mechanism includes tray storage rack, guide pillar, lifting device and insert piece mechanism, lifting device includes a U-shaped lifting frame and the first drive component of driving the vertical movement of this U-shaped lifting frame, insert piece mechanism includes at least a pair of oppositely arranged insert piece and the second drive component of driving the horizontal movement of this insert piece.The utility model simple structure, neatly stack, stable operation, continuous operation can be realized, suitable for paperboard automatic stacking.

Description

Technical Field

[0001] This utility model belongs to the technical field of cardboard palletizing equipment, and in particular relates to a cardboard palletizing equipment with a simplified structure, neat palletizing, and continuous operation. Background Technology

[0002] Existing cardboard palletizing machines mostly use conveyor belts for direct feeding and palletizing. During palletizing, cardboard is prone to misalignment and poor uniformity, requiring manual re-sorting and resulting in low efficiency. While some machines incorporate buffer conveyor lines to allow for non-stop pallet changing, these are complex in structure, costly, and inconvenient to maintain. Furthermore, the conveyor belt is prone to loosening during lifting, affecting conveying stability. Therefore, it is necessary to provide a cardboard palletizing machine with a simpler structure, neater palletizing, and more stable operation. Summary of the Invention

[0003] To address the technical problems existing in the prior art and achieve the above objectives, this utility model provides an uninterrupted automatic cardboard palletizing machine, comprising a mounting frame, a lifting frame, a conveyor telescopic belt, and an alignment device. One end of the conveyor telescopic belt is slidably mounted on the mounting frame, and the other end is provided with a lifting rod connected to the lifting frame. The lifting frame includes a support frame and a movable frame that slides vertically on the support frame. Both ends of the lifting rod are mounted on the movable frame, and the movable frame is provided with adjustable baffles. The machine is characterized by further including a pallet switching mechanism and two sets of buffer components symmetrically arranged at the discharge port. The buffer components include buffer baffles and a first cylinder controlling their opening and closing. The pallet switching mechanism includes a pallet storage frame, multiple guide columns vertically fixed on the pallet storage frame, a lifting device located below the pallet outlet, and an insert mechanism. The lifting device includes a U-shaped lifting frame and a first driving component driving the U-shaped lifting frame to move vertically. The insert mechanism includes at least one pair of oppositely arranged inserts and a second driving component driving the inserts to move horizontally.

[0004] One end of the conveyor belt is slidably mounted on the mounting frame via a slide rail and roller structure; the slide rail and roller structure includes a slide rail mounted on the mounting frame and rollers mounted on the end of the conveyor belt, with the rollers cooperating with the slide rail.

[0005] The alignment device includes an alignment mounting beam mounted on a baffle, a fixed push plate and an alignment push plate on the opposite side of the alignment mounting beam, and the alignment push plate is driven by a second cylinder.

[0006] A tensioning wheel is provided below the conveyor belt. The tensioning wheel is located inside the belt loop of the conveyor belt and is kept taut by a spring or cylinder.

[0007] An adjustable slot is provided on the alignment mounting beam, and the fixed push plate and the alignment push plate can be adjusted within the adjustable slot.

[0008] This utility model has the following features and benefits: it uses a front and rear opening pallet to replace the complex buffer conveyor line, which is simple in structure, reliable in operation, and can realize pallet changing without stopping the machine; the alignment device adopts a one-sided fixed and one-sided pushing method, which results in high pallet neatness; the rear end of the conveyor telescopic belt line adopts a sliding rail roller structure and is equipped with a tensioning wheel to adapt to the length changes during the lifting process, ensuring smooth conveying without deviation; the overall structure is simplified and the manufacturing cost is low. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the installation structure of the telescopic conveyor belt and tensioner pulley of this utility model; Figure 3 This is a schematic diagram of the lifting frame in its high-position state according to this utility model; Figure 4 This is a schematic diagram of the lifting frame of this utility model in its low position. Figure 5 This is a schematic diagram of the alignment device structure of this utility model; Figure 6 This is a schematic diagram of the tray switching mechanism of this utility model; Figure 7 This is a schematic diagram of the slide rail roller structure of this utility model.

[0010] In the diagram: 1-Mounting frame; 21-Support frame; 22-Moving frame; 23-Baffle; 3-Conveyor telescopic belt; 30-Slide rail roller structure; 301-Slide rail; 302-Roller; 31-Lifting rod; 32-Tensioning wheel; 4-Alignment device; 40-Alignment mounting beam; 41-Fixed push plate; 42-Alignment push plate; 43-Second cylinder; 44-Adjustable slot; 51-Buffer baffle; 52-First cylinder; 6-Tray switching mechanism; 61-Tray storage rack; 62-Guide column; 63-Lifting device; 64-Insertion mechanism; 631-U-shaped lifting frame; 632-First driving component; 641-Insertion; 642-Second driving component. Detailed Implementation

[0011] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, this utility model will be further described in detail. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0012] like Figures 1 to 7 As shown, the core workflow and synergistic effects of the components of the uninterrupted automatic cardboard palletizing machine of this utility model are as follows: The cardboard is first conveyed from the previous process to the telescopic conveyor belt 3. One end of this belt is slidably mounted on the mounting frame 1 via a slide rail and roller structure 30, where the slide rail 301 is fixed to the mounting frame and the roller 302 is mounted on the end of the belt. This structure ensures that the belt can freely extend and retract during lifting and lowering, resulting in smooth movement. To overcome any slack that may occur due to belt extension and retraction, a tensioning wheel 32, provided with constant pressure by a spring or cylinder, is installed inside the belt loop, effectively ensuring the stability and reliability of the transmission and preventing deviation.

[0013] After being conveyed to the end, the cardboard falls onto a pallet supported by a lifting frame. The lifting frame consists of a fixed support frame 21 and a movable frame 22 that can slide vertically along it. The discharge end of the conveyor belt 3 is connected to the movable frame 22 via a lifting rod 31, thereby achieving synchronous lifting and lowering of the conveying end and the stacking surface. An adjustable baffle 23 is also provided on the movable frame 22 to block the cardboard and perform initial positioning.

[0014] To ensure that each layer of cardboard is stacked neatly, the equipment is equipped with an alignment device 4. This device is achieved through an alignment mounting beam 40 mounted on a baffle 23, which has a fixed push plate 41 and an alignment push plate 42 driven by a second cylinder 43. When the cardboard falls into place, the alignment push plate 42 moves towards the fixed push plate 41 under the drive of the cylinder, together completing the clamping and alignment of the cardboard. The alignment mounting beam 40 has an adjustable slot 44, in which the fixed push plate 41 and the alignment push plate 42 can be adjusted to accommodate cardboard of different sizes. This structure greatly improves the versatility of the equipment.

[0015] When a stack of cardboard is completed and an empty pallet needs to be replaced, the buffer components and the pallet switching mechanism 6 work together to achieve uninterrupted operation. The buffer components (including buffer baffles 51 and the first cylinder 52 that drives them to open and close) symmetrically arranged on both sides of the feed port quickly close to temporarily receive the cardboard that is subsequently conveyed.

[0016] Simultaneously, the pallet switching mechanism 6 begins operation. Driven by the first drive component 632 (such as a hydraulic cylinder or electric push rod), its lifting device 63 slightly lifts the entire stack of cardboard via the U-shaped lifting frame 631. Subsequently, the second drive component 642 (such as a cylinder) of the insert mechanism 64 pushes a pair of inserts 641 horizontally into the bottom of the lifted cardboard stack. Afterward, the lifting device 63 descends, and the entire cardboard stack is supported by the inserts 641. At this point, an empty pallet separated below can be removed, and a new empty pallet, guided by multiple guide columns 62, is lifted by the lifting device 63 from the pallet storage rack 61 to the designated workstation. Finally, the buffer baffle 51 opens, and the cardboard continues to fall onto the new pallet, initiating a new palletizing cycle.

[0017] The beneficial effects of this utility model are fully demonstrated in this working process: continuous operation and improved efficiency: through the ingenious cooperation between the buffer baffle and the pallet switching mechanism, the machine can be stopped during the pallet changing process, which solves the problem of production interruption caused by pallet changing in traditional equipment and significantly improves the overall palletizing efficiency.

[0018] Neat stacking and reliable quality: The alignment device, which is fixed on one side and pushed by a cylinder on the other side, is precise and reliable, ensuring that the edges and corners of each layer of cardboard are neatly arranged, resulting in good stacking effect and eliminating the need for secondary manual sorting.

[0019] Stable structure and easy maintenance: The telescopic conveyor belt uses sliding rail rollers for guidance and is equipped with an automatic tensioning mechanism, effectively adapting to length changes during lifting and lowering, ensuring smooth power transmission, and reducing maintenance needs. The overall structure is greatly simplified compared to complex buffer conveyor lines, reducing manufacturing and subsequent maintenance costs.

[0020] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. An automatic cardboard palletizing machine without interruption, comprising a mounting frame (1), a lifting frame, a conveyor telescopic belt (3), and an alignment device (4), wherein one end of the conveyor telescopic belt (3) is slidably mounted on the mounting frame (1), and the other end is provided with a lifting rod (31) connected to the lifting frame; the lifting frame includes a support frame (21) and a movable frame (22) that slides vertically on the support frame; both ends of the lifting rod are mounted on the movable frame (22); and the movable frame (22) is provided with an adjustable baffle (23), characterized in that: It also includes a pallet switching mechanism (6) and two sets of buffer components symmetrically arranged at the discharge port. The buffer components include a buffer baffle (51) and a first cylinder (52) for controlling its opening and closing. The pallet switching mechanism (6) includes a pallet storage rack (61), multiple guide columns (62) vertically fixed on the pallet storage rack (61), a lifting device (63) arranged below the discharge pallet, and a insert mechanism (64). The lifting device (63) includes a U-shaped lifting frame (631) and a first driving component (632) for driving the U-shaped lifting frame (631) to move vertically. The insert mechanism includes at least one pair of oppositely arranged inserts (641) and a second driving component (642) for driving the inserts to move horizontally.

2. The automatic cardboard palletizing machine without interruption according to claim 1, characterized in that: One end of the conveyor telescopic belt (3) is slidably mounted on the mounting frame (1) via a slide rail roller structure (30); the slide rail roller structure (30) includes a slide rail (301) set on the mounting frame (1) and a roller (302) installed at the end of the conveyor telescopic belt (3), with the roller cooperating with the slide rail.

3. The automatic cardboard palletizing machine according to claim 1, characterized in that: The alignment device (4) includes an alignment mounting beam (40) mounted on a baffle (23). The alignment mounting beam (40) is provided with a fixed push plate (41) and an alignment push plate (42) on the opposite side. The alignment push plate (42) is driven by a second cylinder (43).

4. The automatic cardboard palletizing machine without interruption according to claim 1, characterized in that: The conveyor telescopic belt (3) is provided with a tension wheel (32) below it. The tension wheel (32) is located inside the belt loop of the conveyor telescopic belt (3) and the belt is kept taut by a spring or cylinder.

5. The automatic cardboard palletizing machine without interruption according to claim 3, characterized in that: An adjustable slot (44) is provided on the alignment mounting beam (40), and the fixed push plate (41) and the alignment push plate (42) can be adjusted in the adjustable slot (44).

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