A discharge gate for a paperboard slitter
By introducing a material transfer and alignment mechanism into the unloading gate of the cardboard slitting machine, and using positioning beams and alignment plates to perform preliminary and secondary alignment of cardboard stacks, the problem of uneven unloading in traditional cardboard slitting machines is solved, improving the neatness of cardboard stacking and processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG ZHIYUAN PRINTING TECH CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-19
AI Technical Summary
Traditional cardboard slitting machines lack alignment structures during unloading, resulting in uneven cardboard stacking and affecting subsequent processing.
Design an unloading gate for a cardboard slitting machine, comprising an unloading bin, a functional gate, a material transfer mechanism, and an alignment mechanism. The cardboard stack is initially and then secondarily aligned by first and second alignment plates on the positioning vertical beam, and the precise alignment of the cardboard is achieved in conjunction with the movement of the material transfer plate.
It achieves precise alignment of cardboard stacks, facilitating subsequent transfer and processing, and improving the neatness and efficiency of cardboard processing.
Smart Images

Figure CN224374299U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cardboard processing equipment, and in particular to a discharge gate for a cardboard slitting machine. Background Technology
[0002] In the cardboard packaging processing industry, the slitting process is a crucial step in carton production. The slitting cardboard needs to be stacked and transferred to subsequent workstations such as die-cutting and printing. Traditional cardboard slitting equipment uses a natural stacking unloading method. Generally, the slitting cardboard drops from the output end of the slitting machine and then naturally stacks into the unloading bin. The unloading bin is equipped with an unloading port. After a certain number of cardboard stacks are formed, workers need to remove the stacks from the unloading bin through the unloading port. Because there is no corresponding alignment structure, the cardboard stacked in this way easily becomes uneven. Workers need to manually align the stacks, which is not ideal for alignment and negatively impacts subsequent processing. Therefore, an alignment structure is needed at the unloading point of the cardboard slitting machine to assist in aligning the stacked cardboard. Utility Model Content
[0003] The purpose of this utility model is to provide a discharge gate for a cardboard slitting machine, which solves the problem that traditional cardboard slitting machines do not have a cardboard auxiliary alignment structure.
[0004] The present invention provides the following technical solution: a discharge gate for a cardboard slitting machine, comprising a discharge bin, a functional gate, a transfer mechanism, and an alignment mechanism. The discharge bin is provided with a discharge port. The functional gate is respectively hinged to the left and right sides of the discharge port. The transfer mechanism includes a transfer plate that moves in and out of the discharge bin through the discharge port. The alignment mechanism includes a positioning vertical beam disposed on the functional gate. A first alignment plate is provided along the height direction on the side of the positioning vertical beam near the discharge port, and a second alignment plate is provided along the opposite height direction on the side of the positioning vertical beam away from the discharge port. When the functional gate is closed, a first alignment area is formed between the opposing first alignment plates, and a second alignment area is formed between the opposing second alignment plates. When the cardboard stack is located in the first alignment area, the first alignment plate presses against both sides of the cardboard stack. When the cardboard stack is located in the second alignment area, the transfer plate is pushed to cause the cardboard stack to press against the positioning vertical beam, so that the second alignment plate squeezes both sides of the cardboard stack.
[0005] As described above, a discharge gate for a cardboard slitting machine includes an upper connecting rod, a lower connecting rod, and a switch gripper. One end of the upper connecting rod and the lower connecting rod, located on the same side, is hinged to the outside of the discharge bin. The switch gripper is fixed to the end of the upper connecting rod and the lower connecting rod away from the discharge bin. The upper connecting rod and the lower connecting rod pass through a positioning vertical beam, allowing the positioning vertical beam to be movably arranged along the length direction of the upper connecting rod, thereby making the lengths of the first alignment area and the second alignment area adjustable.
[0006] As described above, a discharge gate for a cardboard slitting machine includes an adjusting block and a locking handle on the positioning vertical beam. The upper and lower connecting rods are respectively axially connected to the adjusting block, and the locking handle is radially threaded to the adjusting block. When the locking handle rotates closer to the upper or lower connecting rod, the positioning vertical beam is locked. When the locking handle rotates away from the upper or lower connecting rod, the positioning vertical beam is released.
[0007] As described above, in a discharge gate for a cardboard slitting machine, the upper connecting rod is recessed with a graduated groove extending axially.
[0008] As described above, the unloading door for a cardboard slitting machine further includes a door lock disposed between opposing switch grippers. The door lock includes a corresponding latch and a hook. The latch is swung on the switch grippers to swing closer to or away from the hook.
[0009] As described above, the unloading gate for a cardboard slitting machine includes a transfer mechanism that further comprises an inner rail and an outer rail arranged coaxially. The inner rail is located inside the unloading bin, and the outer rail is located outside the unloading bin. The unloading port is located between the inner rail and the outer rail. Pulleys are provided on both sides of the transfer plate, and the pulleys move on the inner rail or the outer rail, allowing the unloading port to move in and out of the unloading bin.
[0010] As described above, in a paperboard slitting machine, the transfer plate has a pull-out straight groove at one end near the outer side of the unloading chamber.
[0011] As described above, in a paperboard slitting machine, a discharge gate is provided on the transfer plate with multiple receiving flanges.
[0012] As described above, a discharge gate for a cardboard slitting machine has a lifting frame inside the discharge chamber that is raised and lowered along the height direction. The inner rail is mounted on the lifting frame, so that the transfer plate is mounted on the lifting frame and rises and falls with the movement of the lifting frame.
[0013] Compared with the prior art, the present invention has the following advantages:
[0014] This utility model discloses a discharge gate for a cardboard slitting machine. It employs a transfer mechanism and an alignment mechanism between the discharge bin and the functional gate to align cardboard stacks. Specifically, the transfer mechanism includes a transfer plate that carries the cardboard and can move in and out of the discharge bin. The alignment mechanism includes a positioning beam on the functional gate, with a first alignment plate and a second alignment plate on the positioning beam. When cardboard is continuously output from the slitting machine to the discharge bin and stacked on the transfer plate, the first alignment plate continuously presses against both sides of the cardboard stack in the first alignment area to prevent misalignment and perform initial alignment. When the transfer plate moves out of the discharge bin and into the second alignment area, it is pushed against the positioning beam. At this point, the second alignment plate squeezes both sides of the cardboard stack, performing secondary alignment. After alignment, the cardboard stack is greatly facilitated for subsequent transfer and processing. Attached Figure Description
[0015] Figure 1 This is a three-dimensional schematic diagram of the unloading gate of this utility model.
[0016] Figure 2 This is a three-dimensional schematic diagram of the unloading gate of this utility model.
[0017] Figure 3 This is a partial top view of the functional door of the unloading door of this utility model.
[0018] Figure 4 This is a three-dimensional schematic diagram of the unloading gate of this utility model with the functional gate omitted.
[0019] Explanation of reference numerals in the attached drawings: 1. Unloading hopper; 2. Functional door; 3. Material transfer mechanism; 4. Alignment mechanism; 11. Unloading port; 12. Lifting frame; 21. Upper connecting rod; 22. Lower connecting rod; 23. Switch gripper plate; 24. Door lock; 31. Material transfer plate; 32. Inner rail; 33. Outer rail; 41. Positioning vertical beam; 42. First alignment zone; 43. Second alignment zone; 211. Scale groove; 241. Lock; 242. Lock hook; 311. Pulley; 312. Pulling straight groove; 313. Receiving flange; 411. First alignment plate; 412. Second alignment plate; 413. Adjusting block; 414. Locking handle. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1: Please refer to the appendix Figure 1 To be continued Figure 4 This embodiment provides a discharge gate for a cardboard slitting machine, including a discharge bin 1, a functional door 2, a material transfer mechanism 3, and an alignment mechanism 4. The discharge bin 1 is provided with a discharge port 11. The functional door 2 is hinged to the left and right sides of the discharge port 11. The material transfer mechanism 3 includes a material transfer plate 31 that moves in and out of the discharge bin 1 through the discharge port 11. The alignment mechanism 4 includes a positioning vertical beam 41 provided on the functional door 2. The positioning vertical beam 41 has a first alignment plate 411 along the height direction on the side near the discharge port 11. A second alignment plate 412 is provided on one side of the unloading port 11 in the opposite direction of the height. When the functional door 2 is closed, a first alignment area 42 is formed between the opposing first alignment plates 411, and a second alignment area 43 is formed between the opposing second alignment plates 412. When the cardboard stack is located in the first alignment area 42, the first alignment plate 411 presses against both sides of the cardboard stack. When the cardboard stack is located in the second alignment area 43, the transfer plate 31 is pushed to drive the cardboard stack to press against the positioning vertical beam 41, so that the second alignment plate 412 squeezes both sides of the cardboard stack. In this embodiment, the unloading gate of the cardboard slitting machine employs a transfer mechanism 3 and an alignment mechanism 4 in cooperation between the unloading bin 1 and the functional gate 2 to achieve alignment of the cardboard stack. Specifically, the transfer mechanism 3 is equipped with a transfer plate 31 for carrying cardboard and movable in and out of the unloading bin 1. The alignment mechanism 4 includes a positioning vertical beam 41 set on the functional gate 2. The positioning vertical beam 41 is equipped with a first alignment plate 411 and a second alignment plate 412. When the cardboard is continuously output from the slitting machine to the unloading bin 1 and stacked on the transfer plate 31, the first alignment plate 411 can continuously press against both sides of the cardboard stack in the first alignment area 42 to prevent the cardboard from being misaligned, thus performing initial alignment of the cardboard stack. When the transfer plate 31 moves out of the unloading bin 1 and is located in the second alignment area 43, it is pushed to press against the positioning vertical beam 41. At this time, the second alignment plate 413 will squeeze both sides of the cardboard stack, performing secondary alignment of the cardboard stack. After alignment, the cardboard stack is greatly facilitated for subsequent transfer and processing.
[0022] Functional door 2 includes an upper connecting rod 21, a lower connecting rod 22, and a switch gripper 23. The upper connecting rod 21 and the lower connecting rod 22 are hinged to the outside of the unloading bin 1 at one end on the same side. The switch gripper 23 is fixed to the end of the upper connecting rod 21 and the lower connecting rod 22 away from the unloading bin 1. The upper connecting rod 21 and the lower connecting rod 22 are connected to the positioning vertical beam 41, so that the positioning vertical beam 41 is movably set along the length direction of the upper connecting rod 21, thereby making the length of the first alignment area 42 and the second alignment area 43 adjustable, so that the alignment mechanism 4 can be adapted to the alignment of cardboard of different specifications.
[0023] The positioning vertical beam 41 is provided with an adjusting block 413 and a locking handle 414. The upper connecting rod 21 and the lower connecting rod 22 are respectively axially connected to the adjusting block 413. The locking handle 414 is radially threaded to the adjusting block 413. When the locking handle 414 rotates close to the upper connecting rod 21 or the lower connecting rod 22, the positioning vertical beam 41 is locked. When the locking handle 414 rotates away from the upper connecting rod 21 or the lower connecting rod 22, the positioning vertical beam 41 is released. The setting of the locking handle 414 realizes the locking of the positioning vertical beam 41 after the adjustment distance.
[0024] Preferably, the upper connecting rod 21 is recessed with a scale groove 211 extending axially. The scale groove 211 allows for accurate adjustment of the alignment distance of the alignment mechanism 4 according to the specifications of the cardboard.
[0025] The functional door 2 also includes a door lock 24 located between opposing switch grippers 23. The door lock 24 includes a corresponding latch 241 and a latch 242. The latch 241 is swung on the switch gripper 23 to swing closer to or away from the latch 242. The door lock 24 enables the locking and unlocking of the functional door 2 when it is closed, making the use of the equipment safer.
[0026] The material transfer mechanism 3 also includes an inner rail 32 and an outer rail 33 arranged coaxially. The inner rail 32 is located inside the unloading bin 1, and the outer rail 33 is located outside the unloading bin 1. The unloading port 11 is located between the inner rail 32 and the outer rail 33. Pulleys 311 are provided on both sides of the material transfer plate 31. The pulleys 311 move along the inner rail 32 or the outer rail 33, allowing the unloading port 11 to move in and out of the unloading bin 1. The arrangement of the inner rail 32 and the outer rail 33, together with the pulleys 311 on the material transfer plate 31, makes it more convenient for the material transfer plate 31 to move in and out of the unloading port 11.
[0027] Preferably, the transfer plate 31 has a pull slot 312 at one end near the outer side of the unloading bin 1, which makes it easy for the operator to pull the transfer plate 31 to move it from the inner rail 32 to the outer rail 33.
[0028] Preferably, the transfer plate 31 is provided with multiple receiving flanges 313 to facilitate the removal of the cardboard on the transfer plate 31 in subsequent processes and to prevent the cardboard on the bottom side from being completely stuck to the transfer plate 31 to the point that it is difficult to remove.
[0029] The unloading bin 1 is equipped with a lifting frame 12 that is raised and lowered along the height direction. The inner rail 32 is located on the lifting frame 12, so that the transfer plate 31 is mounted on the lifting frame 12 and rises and falls with the movement of the lifting frame 12. The lifting frame 12 will descend as the number of cardboards carried by the transfer plate 31 increases. When the lifting frame 12 descends to the bottom of the unloading bin 1, the inner rail 32 engages with the outer rail 33 so that the transfer plate 31 can move in and out of the unloading bin 1.
[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A discharge gate for a paperboard slitter, characterized by: The system includes a discharge bin (1), a functional door (2), a material transfer mechanism (3), and an alignment mechanism (4). The discharge bin (1) has a discharge port (11). The functional door (2) is hinged to the left and right sides of the discharge port (11). The material transfer mechanism (3) includes a material transfer plate (31) that moves in and out of the discharge bin (1) through the discharge port (11). The alignment mechanism (4) includes a positioning vertical beam (41) on the functional door (2). The positioning vertical beam (41) has a first alignment plate (411) along the height direction on the side near the discharge port (11). The positioning vertical beam (41) is away from the discharge port (11). A second alignment plate (412) is provided on one side of the feed inlet (11) in the opposite direction of the height. When the functional door (2) is closed, a first alignment area (42) is formed between the opposite first alignment plates (411) and a second alignment area (43) is formed between the opposite second alignment plates (412). When the cardboard stack is located in the first alignment area (42), the first alignment plate (411) presses against both sides of the cardboard stack. When the cardboard stack is located in the second alignment area (43), the transfer plate (31) is pushed to drive the cardboard stack to press against the positioning vertical beam (41) so that the second alignment plate (412) squeezes the sides of the cardboard stack.
2. A stripper door for a paperboard slitter according to claim 1, characterized in that: The functional door (2) includes an upper connecting rod (21), a lower connecting rod (22), and a switch gripper (23). The upper connecting rod (21) and the lower connecting rod (22) are hinged to the outside of the unloading bin (1) at one end on the same side. The switch gripper (23) is fixed to the end of the upper connecting rod (21) and the lower connecting rod (22) away from the unloading bin (1). The upper connecting rod (21) and the lower connecting rod (22) are connected to the positioning vertical beam (41), so that the positioning vertical beam (41) is movably set along the length direction of the upper connecting rod (21), thereby making the length of the first alignment area (42) and the second alignment area (43) adjustable.
3. A stripper door for a paperboard slitter according to claim 2, characterized in that: The positioning vertical beam (41) is provided with an adjusting block (413) and a locking handle (414). The upper connecting rod (21) and the lower connecting rod (22) are respectively axially connected to the adjusting block (413). The locking handle (414) is radially threaded to the adjusting block (413). When the locking handle (414) rotates closer to the upper connecting rod (21) or the lower connecting rod (22), the positioning vertical beam (41) is locked. When the locking handle (414) rotates away from the upper connecting rod (21) or the lower connecting rod (22), the positioning vertical beam (41) is released.
4. The unloading gate for a cardboard slitting machine according to claim 2, characterized in that: The upper connecting rod (21) is recessed with a scale groove (211) extending axially.
5. A discharge gate for a cardboard slitting machine according to claim 2, characterized in that: The functional door (2) also includes a door lock (24) disposed between the opposite switch grippers (23). The door lock (24) includes a corresponding latch (241) and a hook (242). The latch (241) is swung on the switch grippers (23) to swing closer to or away from the hook (242).
6. The unloading gate for a cardboard slitting machine according to claim 1, characterized in that: The material transfer mechanism (3) also includes an inner rail (32) and an outer rail (33) arranged coaxially. The inner rail (32) is located inside the unloading bin (1), and the outer rail (33) is located outside the unloading bin (1). The unloading port (11) is located between the inner rail (32) and the outer rail (33). The two sides of the material transfer plate (31) are provided with pulleys (311). The pulleys (311) move on the inner rail (32) or the outer rail (33) so that the unloading port (11) moves in and out of the unloading bin (1).
7. The unloading gate for a cardboard slitting machine according to claim 1, characterized in that: The material transfer plate (31) has a pull straight groove (312) at one end near the outside of the unloading bin (1).
8. The unloading gate for a cardboard slitting machine according to claim 1, characterized in that: The transfer plate (31) is provided with multiple receiving flanges (313).
9. A discharge gate for a cardboard slitting machine according to claim 6, characterized in that: The unloading hopper (1) is equipped with a lifting frame (12) that moves up and down along the height direction. The inner rail (32) is mounted on the lifting frame (12), so that the material transfer plate (31) is mounted on the lifting frame (12) and moves up and down with the movement of the lifting frame (12).