A folding machine for producing packaging cartons

By introducing support, adjustment, and pressing devices into the folding machine for carton production, precise support and pressing of the carton are achieved, solving the problem that the support and pressing area cannot be adjusted in the existing technology, and improving the quality and efficiency of carton folding.

CN224348516UActive Publication Date: 2026-06-12FUZHOU WOLIFENG PACKAGING MATERIAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUZHOU WOLIFENG PACKAGING MATERIAL CO LTD
Filing Date
2025-06-20
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

Existing folding machines used in carton production cannot adjust the supporting area and the pressing area, causing the folding position of the carton to shift and reducing the folding quality.

Method used

Design a folding machine for producing packaging cartons, including a support device, an adjustment device, and a pressing device. The supporting area is adjusted by dual-axis movement, and the pressing area is adjusted by bidirectional sliding, which simultaneously drives the adjustment of the folding position to adapt to cartons of different sizes.

🎯Benefits of technology

It enables precise support and pressure on cartons of different sizes, improving the quality and efficiency of carton folding.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224348516U_ABST
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Abstract

The utility model belongs to carton production technical field discloses a folding machine for packing carton production, including the support device for supporting and driving down pressure, still including the support device bottom installation is used for the adjustment device of double axle movement adjustment support area and synchronous belt drive folding position adjustment, install on the adjustment device is used for supporting the folding device of four sides and pushing and shoving folding. The utility model discloses a folding machine for packing carton production, through the setting of double axle movement adjustment support area, makes four support plates move to and fro or two sides, adjusts the interval between each other, changes support area, has realized the adjustment of support area, through the setting of two -way sliding adjustment down pressure area, makes four pressure plates slide to and fro or two sides, changes down pressure area, has realized the adjustment of down pressure area, through the setting of synchronous belt drive folding position adjustment, drives folding roll movement while adjusting support area, need not to carry out adjustment additionally.
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Description

Technical Field

[0001] This utility model belongs to the field of cardboard box production technology, and in particular relates to a folding machine for producing packaging cardboard boxes. Background Technology

[0002] Folding machines for carton production, also known as carton folding and forming machines or paper box folding machines, are an indispensable piece of equipment in the carton production process. These machines can automatically complete the folding and forming processes of cartons, greatly improving production efficiency and product quality.

[0003] Folding machines for carton production are widely used in packaging, printing, logistics and other industries, especially in e-commerce and express delivery. With the rapid development of the e-commerce industry and the increasing demands of consumers for packaging quality, the market demand for folding machines for carton production is growing.

[0004] Comparing with Chinese Patent No. CN220409796U, a cardboard box folding machine is disclosed, including a base plate. A support frame, multi-stage telescopic rods, and springs are fixedly connected to the upper end of the base plate. A first hydraulic telescopic rod is fixedly connected to the upper end of the support frame. A pressure plate is fixedly connected to the output end of the first hydraulic telescopic rod. The multi-stage telescopic rods are located inside the springs. A support platform is fixedly connected to the upper end of the multi-stage telescopic rods. The end of the spring away from the base plate is fixedly connected to the support platform. The support platform is located directly below the pressure plate. Fixed shells are fixedly connected to both the front and rear ends of the support frame. A first U-shaped frame is slidably connected inside the fixed shells.

[0005] The aforementioned patent achieves folding of cartons of different sizes by adjusting the position of the pressure rollers. However, it can only adjust the position of the pressure rollers and cannot adjust the supporting area and pressing area, causing the folding position of the cartons to shift and reducing the folding quality. Therefore, a new device needs to be designed. Utility Model Content

[0006] The purpose of this utility model is to provide a folding machine for producing packaging cartons, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A folding machine for producing packaging cartons includes a support device for supporting and driving downward pressure, and an adjustment device installed at the bottom of the support device for adjusting the support area by moving along two axes and simultaneously adjusting the folding position. The adjustment device is equipped with a folding device for supporting the cartons and pushing and folding on all four sides. Above the folding device is a pressing device for pressing down the cardboard and whose pressing area can be adjusted by sliding in both directions.

[0009] The adjusting device includes a slide block, in which a first positive and negative threaded screw is installed. A first motor is installed on one side of the first positive and negative threaded screw. Two slide plates are symmetrically arranged on both sides of the first positive and negative threaded screw. A slide rail is provided on the slide plate. Two slide platforms are symmetrically slidably installed on the slide rail. A synchronizing rod is provided between the two front slide platforms and the two rear slide platforms. A slider is provided in the middle of the synchronizing rod. A second positive and negative threaded screw is provided at the bottom of the slider. A second motor is installed in front of the second positive and negative threaded screw.

[0010] Furthermore: the support device includes a support frame, an electric push rod is provided on the top of the support frame, and a mounting block is provided on the extended end of the electric push rod.

[0011] Furthermore: the pressing device includes a fixed frame, and four pressure plates are evenly arranged at the four corners of the fixed frame, with a connecting rod between two adjacent pressure plates.

[0012] Furthermore: the folding device includes four telescopic rods evenly arranged, a support plate is installed on the telescopic rods, a spring is installed under the support plate, and four sets of folding rollers are evenly arranged around the four support plates. The front and rear sets of folding rollers are respectively installed on the two sliders, and the two sets of folding rollers on the sides are respectively installed on the two slide rails.

[0013] Furthermore: the slide plate is slidably connected to the slide base, the slide platform is slidably connected to the synchronizing rod, and the synchronizing rod is slidably connected to the slide base.

[0014] Furthermore: the fixed frame is cross-shaped, the connecting rod is welded to the fixed frame, and the pressure plate is slidably connected to the connecting rod.

[0015] Compared with existing technologies, the beneficial effects are:

[0016] 1. By adjusting the support area setting through dual-axis movement, the four support plates can be moved forward, backward, or to the sides to adjust the spacing between them and change the support area, thus achieving the adjustment of the support area;

[0017] 2. By adjusting the pressing area through bidirectional sliding, the four pressing plates can slide forward, backward, or to the sides to change the pressing area, thus achieving adjustment of the pressing area;

[0018] 3. By synchronously adjusting the folding position, the folding roller can be moved while the supporting area is adjusted, without the need for additional adjustment. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a folding machine for producing packaging cartons according to the present invention;

[0020] Figure 2 This is an isometric view of the support device of a folding machine for producing packaging cartons according to the present invention;

[0021] Figure 3 This is a top view of the pressing device of a folding machine for producing packaging cartons according to this utility model;

[0022] Figure 4 This is an isometric view of the adjustment device of a folding machine for producing packaging cartons according to the present invention;

[0023] Figure 5 This is an isometric view of the folding device of a folding machine for producing packaging cartons according to this utility model.

[0024] In the attached drawings, the following are the reference numerals: 101, support frame; 102, electric push rod; 103, mounting block; 201, pressure plate; 202, fixing frame; 203, connecting rod; 301, slide block; 302, first motor; 303, first positive and negative threaded screw; 304, slide plate; 305, slide rail; 306, slide table; 307, synchronizing rod; 308, slider; 309, second positive and negative threaded screw; 310, second motor; 401, telescopic rod; 402, support plate; 403, spring; 404, folding roller. Detailed Implementation

[0025] 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 some embodiments of the present utility model, and not all embodiments. 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.

[0026] Please see Figures 1-5 A folding machine for producing packaging cartons includes a support device for supporting and driving downward pressure, and an adjustment device installed at the bottom of the support device for adjusting the support area by moving along two axes and simultaneously adjusting the folding position. The adjustment device is equipped with a folding device for supporting the carton and pushing and folding on all four sides. Above the folding device is a pressing device for pressing down the cardboard and whose pressing area can be adjusted by sliding in both directions.

[0027] In this embodiment: the support device includes a support frame 101, an electric push rod 102 is provided on the top of the support frame 101, and an installation block 103 is provided on the extended end of the electric push rod 102. The support frame 101 supports the electric push rod 102 to drive the pressing device to move downward through the installation block 103.

[0028] In this embodiment: the pressing device includes a fixed frame 202, four pressure plates 201 are evenly arranged at the four corners of the fixed frame 202, and a connecting rod 203 is arranged between two adjacent pressure plates 201. The fixed frame 202 is cross-shaped. The connecting rod 203 is welded to the fixed frame 202. The pressure plates 201 are slidably connected to the connecting rod 203, so that the four pressure plates 201 can slide forward, backward or to the sides along the four connecting rods 203 under the support of the fixed frame 202, thereby adjusting the pressing area.

[0029] In this embodiment: the adjusting device includes a slide block 301, a first positive and negative threaded screw 303 is installed inside the slide block 301, a first motor 302 is provided on one side of the first positive and negative threaded screw 303, two slide plates 304 are symmetrically arranged on both sides of the first positive and negative threaded screw 303, a slide rail 305 is provided on the slide plate 304, two slide tables 306 are symmetrically slidably installed on the slide rail 305, a synchronizing rod 307 is provided between the two front slide tables 306 and the two rear slide tables 306, a slider 308 is provided in the middle of the synchronizing rod 307, a second positive and negative threaded screw 309 is provided at the bottom of the slider 308, a second motor 310 is installed in front of the second positive and negative threaded screw 309, and the slide plate 304... The slide table 306 is slidably connected to the slide block 301, and the slide table 306 is slidably connected to the synchronizing rod 307. The synchronizing rod 307 is slidably connected to the slide block 301. The second motor 310 drives the second positive and negative threaded screw 309 to rotate and push the two sliders 308 to move the corresponding slide table 306 back and forth along the slide rail 305 through the synchronizing rod 307, thereby adjusting the distance between the front and rear support plates 402. At the same time, the first motor 302 drives the first positive and negative threaded screw 303 to rotate and push the two slide plates 304 to move the slide rail 305 to both sides along the slide block 301, thereby adjusting the distance between the two support plates 402. Through the above two processes, the supporting area of ​​the support plate 402 is adjusted according to the size of the carton to better adapt to different sizes of carton.

[0030] In this embodiment: the folding device includes four evenly arranged telescopic rods 401, a support plate 402 is installed on the telescopic rods 401, a spring 403 is installed under the support plate 402, and four sets of folding rollers 404 are evenly arranged around the four support plates 402. The front and rear sets of folding rollers 404 are respectively installed on two sliders 308, and the two sets of folding rollers 404 on the sides are respectively installed on two slide rails 305. During the pressing process of the pressing device, the pressure plate 201 will press the carton to be folded under the support of the support plate 402, and the spring 403 and the telescopic rod 401 will retract. At the same time, the four sets of folding rollers 404 will push the side panels of the carton to fold it.

[0031] Working principle: Before use, the second motor 310 drives the second positive and negative threaded screw 309 to rotate, pushing the slider 308 to move the corresponding two slides 306 back and forth along the slide rail 305 via the synchronous rod 307, adjusting the distance between the front and rear support plates 402. At the same time, the first motor 302 drives the first positive and negative threaded screw 303 to rotate, pushing the two slide plates 304 to move the slide rail 305 along the slide base 301 to both sides, adjusting the distance between the two side support plates 402. Through the above two processes, the supporting area of ​​the support plate 402 is adjusted according to the size of the carton to better adapt to different sizes of cartons. During the adjustment process, the slider 308 drives the two sets of front and rear folding rollers 404, and the slide rail 305 drives the two side support plates 402 to move to both sides. The folding rollers 404 move with the pallet 402 to achieve synchronous adjustment. After the pallet 402 is adjusted, the four pressure plates 201 slide forward, backward, or to the sides along the four connecting rods 203 under the support of the fixed frame 202 to adjust to correspond with the four pallets 402, thereby adjusting the pressing area. In use, the carton to be folded is placed on the four pallets 402. The support frame 101 supports the electric push rod 102, which drives the pressing device to move downward through the mounting block 103. As the pressing device moves downward, the pressure plates 201 will press the carton to be folded under the support of the pallet 402, and the spring 403 and the telescopic rod 401 will retract. At the same time, the four folding rollers 404 will push the side panels of the carton to fold it.

[0032] 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 folding machine for producing packaging cartons, comprising a support device for supporting and driving downward pressure, characterized in that: It also includes an adjustment device installed at the bottom of the support device for adjusting the support area by moving along two axes and simultaneously adjusting the folding position. The adjustment device is equipped with a folding device for supporting the carton and pushing and folding on all four sides. Above the folding device is a pressing device for pressing down the cardboard and whose pressing area can be adjusted by sliding in both directions. The adjusting device includes a slide block (301), in which a first positive and negative threaded screw (303) is installed. A first motor (302) is provided on one side of the first positive and negative threaded screw (303). Two slide plates (304) are symmetrically arranged on both sides of the first positive and negative threaded screw (303). A slide rail (305) is provided on the slide plate (304). Two slide tables (306) are symmetrically slidably installed on the slide rail (305). A synchronizing rod (307) is provided between the two front slide tables (306) and the two rear slide tables (306). A slider (308) is provided in the middle of the synchronizing rod (307). A second positive and negative threaded screw (309) is provided at the bottom of the slider (308). A second motor (310) is installed in front of the second positive and negative threaded screw (309).

2. The folding machine for producing packaging cartons according to claim 1, characterized in that: The support device includes a support frame (101), an electric push rod (102) is provided on the top of the support frame (101), and an installation block (103) is provided on the extended end of the electric push rod (102).

3. A folding machine for producing packaging cartons according to claim 1, characterized in that: The pressing device includes a fixed frame (202), and four pressure plates (201) are evenly arranged at the four corners of the fixed frame (202). A connecting rod (203) is arranged between two adjacent pressure plates (201).

4. A folding machine for producing packaging cartons according to claim 1, characterized in that: The folding device includes four telescopic rods (401) evenly arranged, with a support plate (402) mounted on the telescopic rods (401) and a spring (403) below the support plate (402). Four sets of folding rollers (404) are evenly arranged around the four support plates (402). The front and rear sets of folding rollers (404) are respectively mounted on two sliders (308), and the two sets of folding rollers (404) on the sides are respectively mounted on two slide rails (305).

5. A folding machine for producing packaging cartons according to claim 1, characterized in that: The slide plate (304) is slidably connected to the slide block (301), the slide table (306) is slidably connected to the synchronizing rod (307), and the synchronizing rod (307) is slidably connected to the slide block (301).

6. A folding machine for producing packaging cartons according to claim 3, characterized in that: The fixed frame (202) is cross-shaped, the connecting rod (203) is welded to the fixed frame (202), and the pressure plate (201) is slidably connected to the connecting rod (203).