flanging assembly

The folding assembly, which combines a support frame and a drive unit, solves the problem of paper rebounding inside the packaging box, achieving an efficient and stable folding effect and ensuring a neat appearance for the packaging box.

CN224375024UActive Publication Date: 2026-06-19DONNELLY (HENAN) PRINTING & PACKAGING TECHNOLOGY IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONNELLY (HENAN) PRINTING & PACKAGING TECHNOLOGY IND CO LTD
Filing Date
2025-06-17
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

In existing technologies, the inner folding paper of packaging boxes is prone to rebound during the folding process, resulting in unstable folding effect and affecting the appearance regularity and overall quality of the packaging box.

Method used

The system employs a combination of a support frame, a folding blade, and a driving device. The first driving device drives the folding blade to advance along the second direction to flatten the inner folded paper. Then, it descends along the second direction to press the inner folded paper tightly against the box blank, preventing it from rebounding.

Benefits of technology

It improves the stability and appearance of the folded packaging box, prevents the inner folded paper from rebounding, and enhances the quality of the folding effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model provides a folding assembly capable of efficiently and effectively folding packaging boxes, effectively preventing the rebound of the inner folded paper, significantly improving the stability of the folding effect, and making the packaging box more neat in appearance. The folding assembly includes a support frame, a folding blade, and a first driving device. The first driving device is mounted on the support frame and configured to drive the folding blade to rise and fall in a first direction, and to move forward and backward in a second direction. When folding the inner folded paper of the packaging box, the first driving device first drives the folding blade forward in the second direction, causing the folding blade to basically flatten the inner folded paper. Subsequently, the first driving device drives the folding blade downward in the second direction, pressing the folding blade against the inner folded paper, thereby ensuring a tight fit between the inner folded paper and the box blank, effectively preventing rebound.
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Description

Technical Field

[0001] This utility model relates to the field of packaging box production equipment technology, and in particular to a folding assembly. Background Technology

[0002] With the development of modern industry, packaging boxes, as a common type of commodity packaging, are receiving increasing attention for their production efficiency and quality. The production process of packaging boxes includes multiple steps such as cutting, folding, gluing, and shaping, among which folding is a crucial step in ensuring the neat appearance and structural stability of the packaging box.

[0003] In the folding process of some packaging boxes, it is usually necessary to first fold the upright inner folding paper flat so that subsequent processes can smoothly fold the inner folding paper into the box body. Currently, related technologies often use a single cylinder to drive a scraper to flatten the inner folding paper. Although this method can achieve the flattening of the inner folding paper to a certain extent, the inner folding paper is prone to rebound after flattening. This not only leads to unstable folding results but also makes the appearance of the packaging box irregular (e.g., the inner folding paper is not well attached to the box blank), thus affecting its overall quality.

[0004] The content of the background section is merely the technology known to the inventor and does not necessarily represent the prior art in this field. Utility Model Content

[0005] To address one or more deficiencies in the prior art, this utility model provides a folding assembly, comprising:

[0006] Support frame;

[0007] Folding edge scraper; and

[0008] A first driving device is mounted on the support frame and configured to drive the folding blade to rise and fall in a first direction, and to drive the folding blade to move forward and backward in a second direction.

[0009] According to one aspect of the present invention, the folding blade includes a shovel plate and a base plate, the base plate being connected to the underside of the shovel plate and extending at least to the front end of the shovel plate.

[0010] According to one aspect of the present invention, a mounting groove is provided on the lower side of the shovel plate, and the bottom plate is disposed in the mounting groove and detachably connected to the shovel plate.

[0011] According to one aspect of the present invention, the front end of the film is provided with a chamfer.

[0012] According to one aspect of the present invention, the first driving device includes:

[0013] A first cylinder, connected to the folding blade, is configured to drive the folding blade to rise and fall along a first direction; and

[0014] The second cylinder is connected to the first cylinder and configured to drive the first cylinder and the folding blade forward and backward in a second direction.

[0015] According to one aspect of the present invention, the first driving device further includes a connecting plate connected between the first cylinder and the second cylinder, wherein the height of the first cylinder on the connecting plate is adjustable.

[0016] According to one aspect of the present invention, the position of the first driving device on the support frame is adjustable.

[0017] According to one aspect of the present invention, the folding assembly further includes a second driving device configured to drive the support frame forward and backward along a second direction.

[0018] According to one aspect of the present invention, the second driving device includes:

[0019] Base;

[0020] The guide rail is disposed on the base along the second direction;

[0021] A slider is mounted on the bottom of the support frame and slides in cooperation with the guide rail; and

[0022] A linear actuator, connected to the support frame, is configured to drive the support frame forward and backward in a second direction.

[0023] According to one aspect of the present invention, the folding assembly further includes a side pressure plate disposed on the front side of the support frame.

[0024] Compared with existing technologies, the embodiments of this utility model provide a folding assembly that can perform efficient and high-quality folding of packaging boxes, effectively avoiding the rebound of the inner folded paper, significantly improving the stability of the folding effect, and making the appearance of the packaging box more regular. Specifically, when folding the inner folded paper of the packaging box, the first driving device can drive the folding blade forward in the second direction to fold the inner folded paper of the packaging box basically flat; then, the first driving device drives the folding blade downward in the second direction to press the inner folded paper of the packaging box, thereby making the inner folded paper fit tightly with the box blank and effectively preventing rebound. Attached Figure Description

[0025] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0026] Figure 1 A schematic diagram of a folding assembly according to an embodiment of the present invention is shown;

[0027] Figure 2 A schematic diagram of a use scenario for a folding assembly according to an embodiment of the present invention is shown;

[0028] Figure 3 A schematic diagram of a folding scraper according to an embodiment of the present invention is shown;

[0029] Figure 4 An exploded view of a portion of the structure of a folded edge assembly according to an embodiment of the present invention is shown.

[0030] In the diagram: 100, folding assembly; 110, support frame; 111, elongated hole; 120, folding scraper; 121, scraper plate; 121a, mounting groove; 122, base plate; 122a, chamfer; 130, first drive device; 131, first cylinder; 132, second cylinder; 133, connecting plate; 133a, oblong hole; 140, second drive device; 141, base; 142, guide rail; 143, slider; 144, linear actuator; 150, side pressure plate. Detailed Implementation

[0031] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0032] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between 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.

[0034] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0035] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0036] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0037] Figure 1 A schematic diagram of a folding assembly 100 according to an embodiment of the present invention is shown below, in conjunction with... Figure 1 Provide a detailed description.

[0038] like Figure 1 As shown, the folding assembly 100 includes a support frame 110, a folding blade 120, and a first drive device 130. The folding blade 120 is horizontally disposed above the support frame 110, and the first drive device 130 is connected between the support frame 110 and the folding blade 120. The first drive device 130 is configured to drive the folding blade 120 to rise and fall in a first direction, and also to drive the folding blade 120 to move forward and backward in a second direction.

[0039] Figure 2 A schematic diagram illustrating a usage scenario of the hem assembly 100 according to an embodiment of the present invention is shown. Figure 2 As shown, when using the folding assembly 100 to fold the inner folded paper of the packaging box, the first driving device 130 can first drive the folding blade 120 forward in the second direction, so that the folding blade 120 basically folds the inner folded paper of the packaging box flat (e.g., Figure 2 (As shown in the diagram); then, the first driving device 130 drives the folding edge scraper 120 to descend in the second direction, causing the folding edge scraper 120 to press the inner folded face paper of the packaging box, thereby making the inner folded face paper tightly adhere to the box blank and effectively preventing rebound. Those skilled in the art will understand that although the above description details the application of the folding edge assembly 100 in the process of flattening the inner folded face paper of the packaging box, the uses of the folding edge assembly 100 are not limited to this. The folding edge assembly 100 can also be widely used in other stages of the packaging box folding process, such as folding the box lid, flaps, and other parts of the packaging box.

[0040] Figure 3 A schematic diagram of a folding scraper 120 according to an embodiment of the present invention is shown. Figure 1 and Figure 3 As shown, the folding edge scraper 120 includes a scraper plate 121 and a base plate 122. The scraper plate 121 is made of a relatively hard material such as metal to ensure the structural strength of the folding edge scraper 120 and to achieve a stable connection between the folding edge scraper 120 and the first driving device 130. The base plate 122 is made of a relatively soft material such as plastic, polyurethane, or silicone. The base plate 122 is attached to the underside of the scraper plate 121 and extends at least to the front end of the scraper plate 121. When the folding edge assembly 100 is used to fold the inner folding paper of the packaging box, the softer base plate 122 contacts the inner folding paper first, effectively preventing the inner folding paper from being scratched.

[0041] According to one embodiment of the present invention, such as Figure 1 and Figure 3 As shown, a mounting groove 121a is provided on the lower side of the shovel plate 121, extending to the front end of the shovel plate 121. The base plate 122 is disposed within the mounting groove 121a and detachably connected to the shovel plate 121, facilitating user replacement of the base plate 122. Preferably, a chamfer 122a is provided at the front end of the base plate 122 to further prevent scratches on the inner folded face paper.

[0042] According to one embodiment of the present invention, such as Figure 1 As shown, the first driving device 130 may include a first cylinder 131 and a second cylinder 132. The first cylinder 131 is positioned above the folding blade 120 along a second direction, and its output end (cylinder rod) is connected to the folding blade 120 (blade 121). By controlling the extension and retraction of the first cylinder 131, the folding blade 120 can be driven to move downward and upward along the first direction. The second cylinder 132 is positioned behind the folding blade 120 along the first direction, and its output end (cylinder rod) is connected to the first cylinder 131. By controlling the extension and retraction of the second cylinder 132, the first cylinder 131 and the folding blade 120 can be driven to move forward and backward along the second direction.

[0043] Figure 4 An exploded view of a portion of the structure of a folded edge assembly 100 according to an embodiment of the present invention is shown. Figure 1 and Figure 4As shown, the first driving device 130 may further include a connecting plate 133, which connects the first cylinder 131 and the second cylinder 132. The height of the first cylinder 131 on the connecting plate 133 is adjustable, thereby enabling the folding assembly 100 to adapt to packaging boxes of different sizes, significantly improving the versatility and flexibility of the folding assembly 100. Preferably, two oblong holes 133a are provided on the connecting plate 133, both of which extend along a first direction. The connecting plate 133 is connected to the cylinder body of the first cylinder 131 by bolts, which pass through the elongated hole 111 on the connecting plate 133 and are fixed to the cylinder body of the first cylinder 131. When the bolts are loosened, the height of the first cylinder 131 can be freely adjusted; while when the bolts are tightened, the position of the first cylinder 131 is firmly locked, ensuring stability during operation.

[0044] According to one embodiment of the present invention, such as Figure 1 and Figure 4 As shown, the position of the first drive device 130 on the support frame 110 is adjustable to further improve the versatility and flexibility of the folding assembly 100. Preferably, two elongated holes 111 are provided on the support frame 110, both of which extend along a second direction. The support frame 110 is connected to the cylinder body of the second cylinder 132 by bolts passing through the elongated holes 111 on the support frame 110 and fixed to the cylinder body of the second cylinder 132. When the bolts are loosened, the position of the first drive device 130 on the support frame 110 can be freely adjusted; while when the bolts are tightened, the position of the first drive device 130 is firmly locked to ensure stability during operation.

[0045] According to one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the folding assembly 100 may further include a second drive device 140. This second drive device 140 is connected to the support frame 110 and configured to drive the support frame 110 forward and backward in a second direction, facilitating the replacement of the packaging box at the folding station by other equipment. Preferably, the drive stroke of the second drive device 140 in the second direction is greater than the drive stroke of the first drive device 130 in the second direction.

[0046] According to one embodiment of the present invention, such as Figure 1 and Figure 2As shown, the second drive device 140 may include a base 141, a guide rail 142, a slider 143, and a linear actuator 144. The guide rail 142 is disposed on the base 141 along a second direction to provide stable guidance. The slider 143 is mounted on the bottom of the support frame 110 and slides in cooperation with the guide rail 142, thereby allowing the support frame 110 to move smoothly in the second direction. The linear actuator 144 is connected to the support frame 110 and configured to drive the support frame 110 forward and backward along the second direction to meet different operational requirements. The linear actuator 144 may be, for example, a cylinder, a hydraulic cylinder, or an electric actuator.

[0047] According to one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, the folding assembly 100 may further include a side pressure plate 150, which is disposed on the front side of the support frame 110. During the folding process, the side pressure plate 150 can abut against the side of the packaging box, thereby fixing and limiting the packaging box, ensuring the stability and accuracy of the folding operation, and further improving the folding quality of the packaging box.

[0048] Compared with the prior art, the embodiments of this utility model provide a folding assembly 100, which can perform efficient and high-quality folding of packaging boxes, effectively avoid the rebound phenomenon of the inner folded paper, significantly improve the stability of the folding effect, and make the appearance of the packaging box more regular. Specifically, when folding the inner folded paper of the packaging box, the first driving device 130 drives the folding blade 120 to move forward in the second direction, so that the folding blade 120 folds the inner folded paper of the packaging box basically flat; then, the first driving device 130 drives the folding blade 120 to descend in the second direction, so that the folding blade 120 presses the inner folded paper of the packaging box, thereby making the inner folded paper fit tightly with the box blank and effectively preventing rebound.

[0049] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A folding assembly, characterized in that, include: Support frame; Folding edge scraper; A first driving device is mounted on the support frame and configured to drive the folding blade to rise and fall in a first direction, and to drive the folding blade to move forward and backward in a second direction. and A second drive unit is configured to drive the support frame forward and backward in a second direction.

2. The folding assembly according to claim 1, characterized in that, The folding blade includes a shovel plate and a base plate, the base plate being connected to the underside of the shovel plate and extending at least to the front end of the shovel plate.

3. The folding assembly according to claim 2, characterized in that, The shovel plate has an installation groove on its lower side, and the bottom plate is placed in the installation groove and detachably connected to the shovel plate.

4. The folding assembly according to claim 2, characterized in that, The front end of the film is chamfered.

5. The folding assembly according to claim 1, characterized in that, The first driving device includes: A first cylinder, connected to the folding blade, is configured to drive the folding blade to rise and fall along a first direction; and The second cylinder is connected to the first cylinder and configured to drive the first cylinder and the folding blade forward and backward in a second direction.

6. The folding assembly according to claim 5, characterized in that, The first drive device further includes a connecting plate, which is connected between the first cylinder and the second cylinder, and the height of the first cylinder on the connecting plate is adjustable.

7. The hemming assembly according to any one of claims 1-6, characterized in that, The position of the first drive device on the support frame is adjustable.

8. The folding assembly according to claim 1, characterized in that, The second driving device includes: Base; The guide rail is disposed on the base along the second direction; A slider is mounted on the bottom of the support frame and slides in cooperation with the guide rail; and A linear actuator, connected to the support frame, is configured to drive the support frame forward and backward in a second direction.

9. The folding assembly according to claim 1, characterized in that, The folding assembly also includes a side pressure plate, which is disposed on the front side of the support frame.