一种纸盒自动封底设备
By introducing a guiding mechanism into the automatic bottom sealing equipment for cardboard boxes, the problem of cardboard box flaps tilting and interfering with glue application was solved, enabling smooth glue application and second folding, and ensuring the stability and aesthetics of the cardboard box bottom sealing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANGHAI BAIAN PACKAGING MATERIALS CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-17
AI Technical Summary
In existing automatic cardboard box sealing equipment, after the first fold, the folded flaps on both sides of the cardboard box will lift up, causing interference during glue application and affecting normal operation.
An automatic bottom sealing device for paper boxes was designed, comprising a support platform, a conveyor belt, a first folding mechanism, a gluing mechanism, a second folding mechanism, and a pressing mechanism, with a guiding mechanism in between to prevent the flaps from tilting up and to ensure smooth gluing and the second folding.
It effectively prevents the cardboard box flaps from lifting up during the glue application process, ensuring proper glue application and facilitating the second fold, ultimately achieving a secure bottom seal for the cardboard box.
Smart Images

Figure CN224510559U_ABST
Abstract
Claims
1. A carton automatic bottom sealing device, comprising a support table, the middle part of the support table is provided with a conveying belt, characterized in that, The support platform is provided with a first folding mechanism, a glue application mechanism, a second folding mechanism and a pressing mechanism in sequence along the conveyor belt moving direction. A guiding mechanism is provided between the first folding mechanism and the glue application mechanism and between the second folding mechanism and the pressing mechanism. The first folding mechanism includes a first bracket fixedly connected to a support platform. Fixed rods are provided on both sides of the first bracket, and a swing arm is rotatably connected to the middle of each of the two fixed rods. Two rotation drive components for driving the swing arms to rotate are provided on the first bracket. The guiding mechanism includes a second bracket fixedly connected to the support platform. Fixed seats are provided on both sides of the second bracket, and a guide rod is provided at the end of the fixed seat. The side of the guide rod closest to the first folding mechanism is inclined away from the transmission belt. The adhesive application mechanism includes a beam support assembly mounted on a support platform, and an adhesive application device is mounted on the beam support assembly. The second folding mechanism includes a third bracket fixedly connected to the support platform, a height-adjustable cylinder seat slidably connected to the third bracket, a second cylinder being provided on the cylinder seat, and a folding push plate being fixedly connected to the piston rod of the second cylinder. The clamping mechanism includes a fourth bracket connected to a support platform, on which a clamping block is provided for clamping the cardboard box flaps.
2. The automatic carton bottom sealing apparatus according to claim 1, wherein The rotary drive assembly includes a first cylinder mounted on a first bracket. The piston rod of the first cylinder is connected to a push-pull block. Both sides of the push-pull block are rotatably connected to one end of a transmission rod, and the other end of the transmission rod is connected to a swing arm.
3. An apparatus for automatically bottom sealing cartons according to claim 2, wherein The swing arm has an L-shaped structure.
4. The automatic carton bottom sealing apparatus according to claim 1, wherein The crossbeam support assembly includes a fixed support that is fixedly connected to the support platform. A crossbar is provided on the fixed support, and a height-adjustable adhesive applicator is provided on the crossbar.
5. The automatic carton bottom sealing apparatus according to claim 1, wherein The third bracket is equipped with a linear guide rail, and the slider of the linear guide rail is connected to the cylinder seat.
6. The automatic carton bottom sealing apparatus according to claim 1, wherein The fourth bracket is equipped with a third cylinder, and the piston rod of the third cylinder is connected to the clamping block.