Automatic carton folding machine

By designing the lever and pressure plate assembly of the automated carton folding machine to work in tandem, the problem of scratching the inner bag in the carton folding machine was solved, thus improving folding efficiency and quality.

CN223835866UActive Publication Date: 2026-01-27KUNSHAN YUXINZHAN AUTOMATION TECH CO LTD
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Patent Information

Application Number
CN202520559147.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-27
Publication Date
2026-01-27
Estimated Expiration
2035-03-27

AI Technical Summary

Technical Problem

Existing cardboard box folding machines may scratch the inner bag during the folding process.

Method used

An automated carton folding machine was designed, comprising a lever assembly and a pressure plate assembly. The lever assembly positions and pre-folds the carton, while the pressure plate assembly performs precise folding. The coordinated actions complete the folding operation of the carton, avoiding damage to the inner bag.

Benefits of technology

It has achieved automated carton folding, which has improved folding efficiency and quality and avoided the problem of scratches on the inner bag.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223835866U_ABST
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Abstract

The utility model discloses an automatic carton folding machine which comprises a rack assembly and a carton pressing assembly movably connected with an inner cavity of the rack assembly, the carton pressing assembly comprises a driving lever assembly and a pressing plate assembly, the automatic carton folding machine is provided with the driving lever assembly and the pressing plate assembly, and a top plate is fixedly arranged at the top end of the driving lever assembly and the top end of the rack assembly. A deflector rod piston is movably connected to the bottom end of the top plate, a deflector rod connecting column is fixedly connected to the end, away from the top plate, of the deflector rod piston, a deflector rod shaft body is movably connected to an inner cavity of the deflector rod connecting column, and the deflector rod fixing column and the pressing plate connecting column are connected and keep cooperative action to jointly complete edge folding operation on the carton; and the lifting air cylinder drives the carton pressing assembly to ascend, the folded carton is taken out, and one-time folding work cycle is completed. The operation is repeated, automatic carton folding operation is achieved, the problem that inner bags of cartons are scratched due to folding operation is effectively avoided, and the folding efficiency and quality are improved.
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Description

Technical Field

[0001] This utility model relates to the field of carton folding technology, specifically to an automated carton folding machine. Background Technology

[0002] Cardboard box packaging is one of the most important forms of transport packaging in the packaging industry, and it has been widely used in various fields such as food, medicine, and electronics.

[0003] For example, CN114434868A discloses a carton folding machine and its folding method, including a frame and a rear folding mechanism, a front folding mechanism, and an upper and lower folding mechanism mounted on the frame with adjustable installation positions; there are two sets of the rear folding mechanism, the front folding mechanism, and the upper and lower folding mechanism, which are symmetrically arranged on the left and right sides of the frame; the rear folding mechanism drives the rear folding pressure plate to move in the left and right direction for folding via a cylinder, the front folding mechanism drives the front folding pressure plate to rotate for folding via a rotary cylinder, and the upper and lower folding mechanism drives the upper push plate and the lower push plate to move in the upper and lower direction for folding via cylinders;

[0004] This patented technology completes the folding of the carton by using a rear folding mechanism, a front folding mechanism, and upper and lower folding mechanisms in sequence. Since the carton may contain some bagged transport items during the folding and sealing process, the folding machine may scratch the inner bag during the folding process. Utility Model Content

[0005] The purpose of this utility model is to provide an automated carton folding machine to solve the problem mentioned in the background art that the folding machine may scratch the inner bag during the folding process of the carton.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to an automated carton folding machine, comprising a frame assembly and a carton pressing assembly movably connected to the inner cavity of the frame assembly.

[0008] The pressure box assembly includes a lever assembly and a pressure plate assembly;

[0009] A lever assembly is provided, wherein a top plate is fixedly installed at the top of the frame assembly, a lever piston is movably connected to the bottom of the top plate, a lever connecting column is fixedly connected to the end of the lever piston away from the top plate, a lever shaft is movably connected to the inner cavity of the lever connecting column, lever movable columns are fixedly connected to the front and rear ends of the lever shaft, and a lever body is fixedly connected to the inner cavity at the lower end of the lever movable column.

[0010] The pressure plate assembly includes a pressure plate fixing column fixedly connected to the bottom end of the top plate, a pressure plate connecting column fixedly connected to the bottom end of the pressure plate fixing column, a pressure plate connecting plate fixedly connected to the bottom end of the pressure plate connecting column, a motor fixing column fixedly connected to the bottom end of the pressure plate connecting plate, a motor body fixedly connected to one end of the motor fixing column, a pressure plate movable column fixedly connected to the rear end of the motor body, and a pressure plate body movably connected to the bottom end of the pressure plate movable column.

[0011] Furthermore, the top plate and the lever piston are connected by a fixed column and a shaft, the top plate is connected by the lever piston and the lever connecting column, and the lever connecting column is connected by the lever shaft and the lever movable column.

[0012] Furthermore, a lever connecting shaft is movably connected to the inner cavity of the movable column of the lever away from the lever body, and a lever fixing column is fixedly connected to the outer side of the lever connecting shaft. The movable column of the lever is connected to the lever fixing column through the lever connecting shaft, and the lever fixing column is fixed to both ends of the pressure plate connecting column.

[0013] Furthermore, the pressure plate fixing column is connected by a pressure plate connecting column and a pressure plate connecting plate, the pressure plate connecting plate is connected to the motor body by a motor fixing column, and the motor body is connected to the pressure plate body by a pressure plate movable column.

[0014] Furthermore, lifting connecting bodies are fixedly connected to the bottom sides of the left and right ends of the top plate, and shafts are fixedly connected to the bottom ends of the two symmetrically arranged lifting connecting bodies.

[0015] Furthermore, the frame assembly includes a frame body, a horizontal plate is fixedly connected to the top of the frame body, and a lifting cylinder is fixedly connected to the bottom of the horizontal plate.

[0016] Furthermore, the inner cavity of the horizontal plate has three slots, the positions of which correspond to the positions of the three shafts at the bottom of the top plate. The shaft at the bottom of the lifting connector is movably connected to the middle slot and is connected to the lifting cylinder at the bottom of the horizontal plate through the slot.

[0017] This utility model has the following beneficial effects:

[0018] I. This utility model is equipped with a lever assembly and a pressure plate assembly. Through the connection between the lever fixing column and the pressure plate connecting column, they maintain coordinated action to jointly complete the folding operation of the carton. After folding, the lifting cylinder drives the pressure plate assembly to rise, removing the folded carton and completing one folding cycle. This cycle repeats continuously, achieving automated carton folding operations, effectively avoiding the problem of scratching the inner bag of the carton during folding, and improving folding efficiency and quality.

[0019] II. Based on the aforementioned beneficial effects, the carton to be folded is first placed within the working area of ​​the folding machine. The equipment is started, and the lifting cylinder begins operation. Through the connection between the slot on the horizontal plate and the bottom shaft of the top plate, the top plate and the connected pressing box assembly are lowered. During this descent, the lever assembly's lever body first contacts the carton. Due to the movable connection between the lever piston and the top plate, and the movable connection structure between the lever connecting column, lever shaft, and lever movable column, the lever body can adaptively adjust its angle according to the carton's position and shape, initially lifting the carton's edges for positioning and pre-folding. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0022] Figure 2 This is a schematic diagram of the frame assembly frame body connection of this utility model;

[0023] Figure 3 This is a schematic diagram of the connection between the top plate of the pressure box assembly and the lever assembly of this utility model;

[0024] Figure 4 This is a schematic diagram of the connection between the pressure plate and the pressure plate fixing column of the pressure box assembly of this utility model;

[0025] Figure 5 This is a schematic diagram showing the lifting cylinder of the frame assembly of this utility model placed separately.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] In the diagram: 1. Frame assembly; 2. Pressure box assembly; 11. Frame body; 12. Horizontal plate; 13. Lifting cylinder; 21. Lever assembly; 211. Top plate; 212. Lever piston; 213. Lever connecting column; 214. Lever shaft; 215. Lever movable column; 216. Lever body; 217. Lever connecting shaft; 218. Lever fixing column; 22. Pressure plate assembly; 221. Pressure plate fixing column; 222. Pressure plate connecting column; 223. Pressure plate connecting plate; 224. Motor fixing column; 225. Motor body; 226. Pressure plate movable column; 227. Pressure plate body; 23. Lifting connector. Detailed Implementation

[0028] 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.

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0030] Please see Figure 1-5 As shown, this utility model is an automated carton folding machine, including a frame assembly 1 and a pressing assembly 2 movably connected to the inner cavity of the frame assembly 1.

[0031] The pressure box assembly 2 includes a lever assembly 21 and a pressure plate assembly 22;

[0032] The top plate 211 is fixedly installed at the top of the frame assembly 1. The bottom end of the top plate 211 is movably connected to the lever piston 212. The end of the lever piston 212 away from the top plate 211 is fixedly connected to the lever connecting column 213. The inner cavity of the lever connecting column 213 is movably connected to the lever shaft 214. The front and rear ends of the lever shaft 214 are fixedly connected to the lever movable column 215. The inner cavity at the lower end of the lever movable column 215 is fixedly connected to the lever body 216.

[0033] The pressure plate assembly 22 has a pressure plate fixing column 221 fixedly connected to the bottom end of the top plate 211, a pressure plate connecting column 222 fixedly connected to the bottom end of the pressure plate fixing column 221, a pressure plate connecting plate 223 fixedly connected to the bottom end of the pressure plate connecting column 222, a motor fixing column 224 fixedly connected to the bottom end of the pressure plate connecting plate 223, a motor body 225 fixedly connected to one end of the motor fixing column 224, a pressure plate movable column 226 fixedly connected to the rear end of the motor body 225, and a pressure plate body 227 movably connected to the bottom end of the pressure plate movable column 226.

[0034] The lever assembly 21 and the pressure plate assembly 22 work together to achieve stable pressing and folding of the carton. The lever assembly 21 can position and initially fold the carton through the lever body 216, while the pressure plate assembly 22, driven by the motor, uses the pressure plate body 227 to fold the carton more precisely and forcefully. The synergistic effect of the two improves the efficiency and quality of folding.

[0035] The top plate 211 and the lever piston 212 are connected by a fixed column and a shaft. The top plate 211 is connected to the lever connecting column 213 via the lever piston 212. The lever connecting column 213 is connected to the lever movable column 215 via the lever shaft 214.

[0036] This connection method enables the lever piston 212 to drive the lever connecting column 213 to move stably. The movable connection between the lever shaft 214 and the lever movable column 215 allows the lever movable column 215 to rotate flexibly according to the actual folding requirements, enhancing the flexibility of the lever assembly 21 and making it easier to adapt to the folding of cartons of different sizes and shapes.

[0037] The inner cavity of the movable column 215 away from the main body 216 of the lever is movably connected to the lever connecting shaft 217. The outer side of the lever connecting shaft 217 is fixedly connected to the lever fixing column 218. The movable column 215 is connected to the lever fixing column 218 through the lever connecting shaft 217. The lever fixing column 218 is fixed to both ends of the pressure plate connecting column 222.

[0038] The movable column 215 of the lever is connected to the fixed column 218 of the lever through the lever connecting shaft 217, and the fixed column 218 of the lever is fixed at both ends of the pressure plate connecting column 222. This structure enables a stable linkage between the lever assembly 21 and the pressure plate assembly 22, ensuring that the two move in a coordinated manner during the folding process and improving the overall stability of the folding.

[0039] The pressure plate fixing column 221 is connected to the pressure plate connecting column 222 and the pressure plate connecting plate 223. The pressure plate connecting plate 223 is connected to the motor body 225 through the motor fixing column 224. The motor body 225 is connected to the pressure plate moving column 226 and the pressure plate body 227.

[0040] The connection method between the components ensures that the power of the motor can be effectively transmitted to the pressure plate body 227, so that the pressure plate body 227 can generate sufficient pressure and precise movement when folding, thereby achieving a good folding effect on the edge of the carton and improving the quality of the folding.

[0041] Lifting connectors 23 are fixedly connected to the bottom sides of the left and right ends of the top plate 211, and shafts are fixedly connected to the bottom ends of the two symmetrically arranged lifting connectors 23.

[0042] The lifting connector 23 and its bottom shaft provide a stable lifting support structure for the top plate 211, which facilitates cooperation with the lifting cylinder 13 on the frame assembly 1 to realize the lifting movement of the entire pressing box assembly 2, so as to adapt to the folding work of cartons of different heights.

[0043] The frame assembly 1 includes a frame body 11, a horizontal plate 12 is fixedly connected to the top of the frame body 11, and a lifting cylinder 13 is fixedly connected to the bottom of the horizontal plate 12.

[0044] The frame assembly 1, consisting of the frame body 11, the horizontal plate 12, and the lifting cylinder 13, provides a stable support structure for the entire folding machine. The lifting cylinder 13 can provide power for the lifting of the pressing assembly 2, ensuring that the pressing assembly 2 can be flexibly adjusted according to the height of the carton, thus improving the applicability of the equipment.

[0045] The inner cavity of the horizontal plate 12 has three slots, the positions of which correspond to the positions of the three shafts at the bottom of the top plate 211. The shaft at the bottom of the lifting connector 23 is movably connected to the middle slot and is connected to the lifting cylinder 13 at the bottom of the horizontal plate 12 through the slot.

[0046] The slot on the horizontal plate 12 and the bottom shaft of the top plate 211 not only guide the lifting and lowering of the pressure box assembly 2, ensuring a smooth lifting process, but also connect to the lifting cylinder 13 through the slot, realizing the effective transmission of power, so that the lifting cylinder 13 can accurately control the lifting height of the pressure box assembly 2.

[0047] Working Principle: First, place the carton to be folded into the working area of ​​the folding machine. Start the equipment, and the lifting cylinder 13 begins to work, pushing the top plate 211 and the connected pressing box assembly 2 downwards through the connection between the slot on the horizontal plate 12 and the bottom shaft of the top plate 211. During the descent, the lever body 216 of the lever assembly 21 first contacts the carton. Due to the movable connection between the lever piston 212 and the top plate 211, and the movable connection structure between the lever connecting column 213, the lever shaft 214, and the lever movable column 215, the lever body 216 can adaptively adjust its angle according to the position and shape of the carton, initially lifting the edge of the carton, thus achieving positioning and pre-folding.

[0048] Simultaneously, driven by the motor body 225, the pressure plate assembly 22's movable column 226 drives the pressure plate body 227 to move downwards. The connection structure between components such as the pressure plate fixing column 221, pressure plate connecting column 222, pressure plate connecting plate 223, and motor fixing column 224 ensures stable power transmission from the motor, enabling the pressure plate body 227 to apply greater pressure to the edges of the carton, achieving precise edge folding.

[0049] Throughout the folding process, the lever assembly 21 and the pressure plate assembly 22 maintain coordinated action through the connection between the lever fixing post 218 and the pressure plate connecting post 222, jointly completing the folding operation of the carton. After folding, the lifting cylinder 13 drives the pressure box assembly 2 to rise, removing the folded carton and completing one folding cycle. This cycle repeats continuously, achieving automated carton folding operations, effectively avoiding the problem of scratching the inner bag of the carton during folding operations, and improving folding efficiency and quality.

[0050] This step automates the carton folding process, effectively preventing scratches on the inner bag of the carton during folding and improving folding efficiency and quality.

[0051] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0052] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automated carton folding machine, characterized in that, Includes a rack assembly (1) and a pressure box assembly (2) that is movably connected to the inner cavity of the rack assembly (1): The pressure box assembly (2) includes a lever assembly (21) and a pressure plate assembly (22); The lever assembly (21) has a top plate (211) fixedly installed at the top of the frame assembly (1). The bottom end of the top plate (211) is movably connected to a lever piston (212). The end of the lever piston (212) away from the top plate (211) is fixedly connected to a lever connecting column (213). The inner cavity of the lever connecting column (213) is movably connected to a lever shaft (214). The front and rear ends of the lever shaft (214) are fixedly connected to lever movable columns (215). The inner cavity at the lower end of the lever movable column (215) is fixedly connected to a lever body (216). The pressure plate assembly (22) has a pressure plate fixing column (221) fixedly connected to the bottom end of the top plate (211), a pressure plate connecting column (222) fixedly connected to the bottom end of the pressure plate fixing column (221), a pressure plate connecting plate (223) fixedly connected to the bottom end of the pressure plate connecting column (222), a motor fixing column (224) fixedly connected to the bottom end of the pressure plate connecting plate (223), a motor body (225) fixedly connected to one end of the motor fixing column (224), a pressure plate movable column (226) fixedly connected to the rear end of the motor body (225), and a pressure plate body (227) movably connected to the bottom end of the pressure plate movable column (226).

2. The automated carton folding machine according to claim 1, characterized in that: The top plate (211) and the lever piston (212) are connected by a fixed column and a shaft. The top plate (211) is connected to the lever connecting column (213) via the lever piston (212). The lever connecting column (213) is connected to the lever movable column (215) via the lever shaft (214).

3. The automated carton folding machine according to claim 1, characterized in that: The inner cavity of the movable column (215) away from the main body (216) of the lever is movably connected to the lever connecting shaft (217). The outer side of the lever connecting shaft (217) is fixedly connected to the lever fixing column (218). The movable column (215) is connected to the lever fixing column (218) through the lever connecting shaft (217). The lever fixing column (218) is fixed to both ends of the pressure plate connecting column (222).

4. An automated carton folding machine according to claim 1, characterized in that: The pressure plate fixing column (221) is connected to the pressure plate connecting column (222) and the pressure plate connecting plate (223). The pressure plate connecting plate (223) is connected to the motor body (225) through the motor fixing column (224). The motor body (225) is connected to the pressure plate body (227) through the pressure plate movable column (226).

5. An automated carton folding machine according to claim 1, characterized in that: The bottom sides of the top plate (211) are fixedly connected to lifting connectors (23), and the bottom ends of the two symmetrically arranged lifting connectors (23) are fixedly connected to shafts.

6. An automated carton folding machine according to claim 1, characterized in that: The frame assembly (1) includes a frame body (11), a horizontal plate (12) is fixedly connected to the top of the frame body (11), and a lifting cylinder (13) is fixedly connected to the bottom of the horizontal plate (12).

7. An automated carton folding machine according to claim 6, characterized in that: The inner cavity of the horizontal plate (12) has three slots, the positions of which correspond to the positions of the three shafts at the bottom of the top plate (211). The shaft at the bottom of the lifting connector (23) is movably connected to the slot in the middle and is connected to the lifting cylinder (13) at the bottom of the horizontal plate (12) through the slot.

Citation Information

Patent Citations

  • Carton folding machine and folding method thereof

    CN114434868A