Pre-bending mechanism and pre-bending production line
Patent Information
- Application Number
- CN202522515617.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-26
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-11-26
AI Technical Summary
在对纸张进行预弯折时，传统的人工加工效率低下，且质量和一致性较低
[0014]与现有技术相比，本实用新型的实施例提供了一种预弯折机构，第二驱动器驱动推板沿第二方向运动，靠近或远离传送机构，推板可以推动纸张的部分运动，在预设位置处形成折痕。第一驱动器驱动第二驱动器和推板沿第一方向运动，有利于降低推板和纸张或传送机构发生结构干涉的风险，有利于实现对纸张进行自动化预弯折。第一方向和第二方向与纸张的运动方向均大致垂直，有利于对纸张进行保护，提高产品质量。
Smart Images
Figure CN224915504U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of paper forming technology, and in particular to a pre-bending mechanism and a pre-bending production line. Background Technology
[0002] In the field of paper forming and processing technology, some products require pre-bending of paper to facilitate subsequent processing into three-dimensional shapes that achieve different functions, such as packaging boxes and decorations. Traditional manual pre-bending of paper is inefficient and results in low quality and consistency. Some existing technologies use clamps or similar mechanisms to hold and fold the paper, which may damage the paper surface. Other technologies use suction cups for folding, but these have limited applicability and cannot be used with paper of poor flatness.
[0003] 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
[0004] To address one or more deficiencies in the prior art, this utility model provides a pre-bending mechanism for forming creases at preset positions on paper, wherein the paper is moved in a third direction by a conveying mechanism, and the pre-bending mechanism is disposed on the side of the conveying mechanism. The pre-bending mechanism includes: First driver; A second driver, which is connected to the first driver; A push plate, which is connected to the second driver, and the side edge of the push plate facing the conveying mechanism is substantially parallel to the third direction; Wherein, the first driver drives the second driver to move along a first direction; the second driver drives the pusher to move along a second direction, so that the pusher moves closer to or away from the conveying mechanism; the second direction is not parallel to the first direction; both the first direction and the second direction are approximately perpendicular to the third direction.
[0005] According to one aspect of the present invention, the push plate is inclined downward toward the side of the conveying mechanism, and the plane on which the push plate is located has a preset angle relative to the bearing plane of the conveying mechanism; the preset angle is in the range of 5°-20°.
[0006] According to one aspect of the present invention, the push plate is detachably connected to the second driver, or the relative angle between the push plate and the second driver is adjustable to change the angle of the plane on which the push plate is located relative to the bearing plane of the conveying mechanism.
[0007] According to one aspect of the present invention, the second direction is substantially parallel to the plane in which the push plate is located.
[0008] According to one aspect of the present invention, the first driver drives the second driver and the push plate to move synchronously between a first preset position and a second preset position in the first direction; when the second driver and the push plate are in the first preset position, the push plate is located below the bearing plane of the conveying mechanism; when the second driver and the push plate are in the second preset position, one edge of the push plate facing the conveying mechanism is located above the bearing plane of the conveying mechanism.
[0009] According to one aspect of the present invention, the second driver drives the push plate to move between a third preset position and a fourth preset position in the second direction; in the third preset position, the push plate is away from the conveying mechanism; in the fourth preset position, the push plate is close to the conveying mechanism, and the crease of the paper is located between the push plate and the bearing plane of the conveying mechanism.
[0010] According to one aspect of the present invention, the push plate has a beveled or arc-shaped surface on one side edge facing the conveying mechanism.
[0011] According to one aspect of the present invention, the upper surface of the push plate has rollers, and when the second driver drives the push plate to move closer to the conveying mechanism in the second direction, the rollers roll and rub against the paper.
[0012] According to one aspect of the present invention, the present invention also includes a pre-bending production line for forming creases at predetermined positions on paper, said pre-bending production line comprising: A conveying mechanism, wherein the paper is laid flat on the bearing plane of the conveying mechanism, and the conveying mechanism drives the paper to move in a third direction; As described above, the pre-bending mechanism is disposed on one or both sides of the conveying mechanism.
[0013] According to one aspect of the present invention, the pre-bending production line further includes: A position sensor, configured to acquire the position of the paper on the conveying mechanism and signal-connected to the conveying mechanism; A fixing mechanism is connected to the position sensor signal and keeps the position of the paper fixed according to the signal from the position sensor.
[0014] Compared with existing technologies, embodiments of this utility model provide a pre-bending mechanism. A second driver drives a pusher plate to move along a second direction, approaching or moving away from the conveying mechanism. The pusher plate can push part of the paper's movement, forming a crease at a preset position. The first driver drives the second driver and the pusher plate to move along a first direction, which helps reduce the risk of structural interference between the pusher plate and the paper or conveying mechanism, and facilitates automated pre-bending of the paper. Both the first and second directions are approximately perpendicular to the paper's movement direction, which helps protect the paper and improve product quality.
[0015] An embodiment of this utility model also includes a pre-bending production line, which uses the pre-bending mechanism as described above. Attached Figure Description
[0016] 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: Figure 1 A schematic diagram of an exemplary pre-bending mechanism consistent with some embodiments of the present invention is shown; Figure 2 A side view of an exemplary pre-bending mechanism consistent with some embodiments of the present invention is shown; Figure 3 A schematic diagram of an exemplary pre-bending production line consistent with some embodiments of the present invention is shown. Detailed Implementation
[0017] 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 to be exemplary in nature and not restrictive.
[0018] 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.
[0019] 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.
[0020] 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 below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0021] 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.
[0022] The embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.
[0023] Figure 1 The structure of an exemplary pre-bending mechanism 100 consistent with some embodiments of the present invention is shown. Figure 2 A schematic diagram showing the cooperation of an exemplary pre-bending mechanism 100, a conveying mechanism 200, and paper 300, consistent with some embodiments of this utility model, is shown below. (The following is in conjunction with...) Figure 1 and Figure 2 The pre-bending mechanism 100 is described below.
[0024] See Figure 1 The pre-bending mechanism 100 includes a first driver 110, a second driver 120, and a pusher plate 130. The second driver 120 is connected to the first driver 110. The pusher plate 130 is connected to the second driver 120. The first driver 110 can drive the second driver 120 and the pusher plate 130 along a first direction (see...). Figure 1 The second driver 120 can drive the push plate 130 along the second direction (see...). Figure 1 The first and second directions are not parallel. That is, the first driver 110 and the second driver 120 cooperate with each other to drive the push plate 130 to move in two directions. In some embodiments, the first driver 110 and the second driver 120 may include an electric motor, a hydraulic driver, a pneumatic driver, etc. Preferably, the first driver 110 and the second driver 120 include a pneumatic driver, which helps to reduce the cost of the pre-bending mechanism 100.
[0025] The pre-bending mechanism 100 of this invention is used to form a crease 310 at a preset position on the paper 300. In some embodiments, the preset position on the paper 300 has a pre-processed crease line, or the position of the paper 300 relative to the pre-bending mechanism 100 is pre-fixed so that the pre-bending mechanism 100 forms a crease 310 at the preset position on the paper 300.
[0026] See Figure 2 The conveyor mechanism 200 drives the paper 300 along a third direction (perpendicular to) Figure 2 The paper 300 moves along the direction of the paper surface. The paper 300 is laid flat on the bearing plane 210 of the conveying mechanism 200. In some embodiments, the conveying mechanism 200 may include a conveyor belt, and the bearing plane 210 of the conveying mechanism 200 may be the upper surface of the conveyor belt. The paper 300 is laid flat on the upper surface of the conveyor belt and moves along the conveyor belt.
[0027] See Figure 2 The pre-bending mechanism 100 is disposed on the side of the conveying mechanism 200. In some embodiments, the pre-bending mechanism 100 is disposed on one or both sides of the conveying mechanism 200, and the paper 300 extends to the outside of the conveying mechanism 200 at a position corresponding to the pre-bending mechanism 100. The pre-bending mechanism 100 can pre-bend the paper 300 on one or both sides of the conveying mechanism 200, and the specific position of the pre-bending mechanism 100 relative to the conveying mechanism 200 can be determined according to the actual needs of the product.
[0028] See Figure 2 The side edge of the push plate 130 facing the conveying mechanism 200 is approximately parallel to the third direction. For example, the push plate 130 is approximately rectangular flat, and the side edge of the push plate 130 facing the conveying mechanism 200 is approximately straight and parallel to the direction of movement (third direction) of the conveying mechanism 200.
[0029] The first driver 110 and the second driver 120 can drive the pusher plate 130 to move along the first direction and the second direction, so that the pusher plate 130 approaches or moves away from the conveyor mechanism 200. When the pusher plate 130 approaches the conveyor mechanism 200, the pusher plate 130 pushes the paper 300 extending outside the conveyor mechanism 200 to move, thereby achieving pre-bending of the paper 300.
[0030] In some embodiments, see Figure 2 Both the first and second directions are approximately perpendicular to the third direction (perpendicular to the paper surface). During the movement of the pusher plate 130 along the first or second direction, the pusher plate 130 avoids generating a component force along the third direction, reducing friction between the pusher plate 130 and the paper 300. This helps protect the surface of the paper 300 and improves product quality.
[0031] The pre-bending mechanism 100 in this embodiment can push the paper on the conveying mechanism 200 to pre-bend the paper 300, which is beneficial to improving production efficiency and processing accuracy, and is applicable to a variety of different types of paper, thus expanding the application range of the pre-bending mechanism 100. Furthermore, both the first and second directions are approximately perpendicular to the third direction, which helps to reduce the frictional force exerted by the push plate 130 on the surface of the paper 300, protecting the surface of the paper 300 and improving product quality.
[0032] See Figure 2 In some embodiments, the pusher plate 130 is tilted downwards towards the side facing the conveying mechanism 200, and the plane on which the pusher plate 130 is located has a preset angle relative to the bearing plane 210 of the conveying mechanism 200. In some embodiments, the preset angle ranges from 5° to 20°. Specifically, the preset angle between the plane on which the pusher plate 130 is located and the bearing plane 210 of the conveying mechanism 200 can be 5°, 10°, 15°, 20°, etc. In this embodiment, the preset angle between the plane on which the pusher plate 130 is located and the bearing plane 210 of the conveying mechanism 200 can guide the bending direction of the paper 300, reduce the risk of the pusher plate 130 squeezing the side (thick surface) of the paper 300, and protect the paper 300.
[0033] It should be noted that in this embodiment, the preset angle between the plane of the push plate 130 and the bearing plane 210 of the conveying mechanism 200 does not represent the pre-bending angle of the paper 300. The pre-bending angle of the paper 300 is related to the movement stroke of the push plate 130 along the first direction, the movement stroke along the second direction, and the preset angle between the plane of the push plate 130 and the bearing plane 210 of the conveying mechanism 200. According to a preferred embodiment of this utility model, the movement stroke of the push plate 130 along the first direction, the movement stroke along the second direction, and the preset angle between the plane of the push plate 130 and the bearing plane 210 of the conveying mechanism 200 can be determined based on the pre-bending angle of the paper 300, the size of the paper 300, and the stiffness of the paper 300.
[0034] In a preferred embodiment of this invention, the push plate 130 and the second driver 120 are detachably connected to change a preset angle between the plane containing the push plate 130 and the bearing plane 210 of the conveying mechanism 200. Alternatively, in some embodiments, the relative angle between the push plate 130 and the second driver 120 is adjustable to change the preset angle between the plane containing the push plate 130 and the bearing plane 210 of the conveying mechanism 200. For example, the push plate 130 and the second driver 120 are connected by an adjustable lead screw, allowing adjustment of the angle between the push plate 130 and the second driver 120.
[0035] This embodiment improves the applicability of the preforming mechanism 100, allowing adjustment of the preset angle between the plane of the push plate 130 and the bearing plane 210 of the conveying mechanism 200 based on the pre-bending angle of the paper 300 and its size and stiffness. Simultaneously, this embodiment also reduces the difficulty of controlling and adjusting the first driver 110 and the second driver 120. In some embodiments, the first driver 110 and the second driver 120 can be configured to have preset strokes.
[0036] See Figure 1 According to a preferred embodiment of the present invention, the second direction is substantially parallel to the plane containing the push plate 130. For example, in some embodiments, the second driver 120 includes an output shaft arranged along the second direction and substantially parallel to the plane of the push plate 130. In this embodiment, the fact that the second direction is substantially parallel to the plane containing the push plate 130 simplifies the structural design and allows the second driver 120 to avoid the conveying mechanism 200 and the paper 300. Furthermore, the fact that the second direction is substantially parallel to the plane containing the push plate 130 helps reduce the component force exerted by the push plate 130 on the thick side of the paper 300, thus protecting the paper 300.
[0037] According to a preferred embodiment of the present invention, the first driver 110 drives the second driver 120 and the pusher plate 130 to move synchronously between a first preset position and a second preset position in a first direction. In some embodiments, the first direction is, for example, a vertical direction, the first preset position represents the lowest position of the second driver 120 and the pusher plate 130 in the vertical direction, and the second preset position represents the highest position of the second driver 120 and the pusher plate 130 in the vertical direction. In some embodiments, when the second driver 120 and the pusher plate 130 are in the first preset position, the pusher plate 130 is located below the bearing plane 210 of the conveying mechanism 200. This avoids the pusher plate 130 interfering with the movement of the paper 300 along the conveying mechanism 200. When the second driver 120 and the pusher plate 130 are in the second preset position, see [link to documentation]. Figure 2 The push plate 130 has one edge facing the conveying mechanism 200 above the bearing plane 210 of the conveying mechanism 200. The second driver 120 drives the push plate 130 to approach the conveying mechanism 200 to pre-bend the paper 300.
[0038] In a preferred embodiment of this invention, the second driver 120 drives the push plate 130 to move between a third preset position and a fourth preset position in a second direction. When the push plate 130 is in the third preset position, it moves away from the conveying mechanism 200. When the push plate 130 is in the fourth preset position, it moves closer to the conveying mechanism 200, and the crease 310 of the paper 300 is located between the push plate 130 and the bearing plane 210 of the conveying mechanism 200.
[0039] In some embodiments, the paper 300 is pre-processed with crease lines or discontinuity lines at preset positions to guide the formation position of the crease 310. During the process of the second driver 120 driving the pusher plate 130 to approach the fourth preset position from the third preset position, the paper 300 bends at the preset position, and the bending angle of the paper 300 increases as the pusher plate 130 approaches the conveying mechanism 200. Until the pusher plate 130 moves to the fourth preset position, the crease 310 is located between the pusher plate 130 and the bearing plane 210 of the conveying mechanism 200, completing the pre-bending of the paper 300.
[0040] In some embodiments, the pusher plate 130 has a beveled or curved surface on one edge facing the conveying mechanism 200. The beveled or curved surface can guide the paper 300 to bend, which helps to reduce the pressure or friction of the pusher plate 130 on the paper 300 and protects the surface of the paper 300.
[0041] According to a preferred embodiment of the present invention, the upper surface of the push plate 130 has rollers (not shown in the figure). When the second driver 120 drives the push plate 130 to move closer to the conveying mechanism 200 along a second direction, the rollers roll and rub against the paper 300. This embodiment can further reduce the friction between the upper surface of the push plate 130 and the paper 300, protecting the surface of the paper 300. Specifically, the rollers on the upper surface of the push plate 130 include multiple unpowered ball bearings or rubber rollers. The rollers can rotate about an axis parallel to a third direction. During the process of the second driver 120 driving the push plate 130 closer to the conveying mechanism 200, the lower surface of the paper 300 abuts against the rollers and generates rolling friction, reducing the friction between the paper 300 and the push plate 130.
[0042] This utility model also includes a pre-bending production line. Figure 3 The structure of an exemplary pre-bending production line 10, consistent with some embodiments of the present invention, is shown.
[0043] See Figure 3 The pre-bending production line 10 is used to form creases 310 at preset positions on the paper 300. The pre-bending production line 10 includes a conveying mechanism 200. Figure 3 A portion of the conveying mechanism 200 is shown (to avoid obstructing the pre-bending mechanism 100) and the pre-bending mechanism 100 as described in the foregoing embodiments. The conveying mechanism 200 has a bearing plane 210 on which the paper 300 is laid flat, and the conveying mechanism 200 moves the paper 300 along a third direction.
[0044] The pre-bending mechanism 100 is located on one or both sides of the conveying mechanism 200. Specifically, the position of the pre-bending mechanism 100 relative to the conveying mechanism 200 is determined according to the pre-bending design requirements of the paper 300.
[0045] See Figure 3 According to a preferred embodiment of the present invention, the pre-bending production line 10 further includes a position sensor (not shown in the figure) and a fixing mechanism 400. The position sensor can acquire the position of the paper 300 on the conveying mechanism 200, and the position sensor is signal-connected to the conveying mechanism 200. Specifically, the conveying mechanism 200 drives the paper 300 to move along a third direction. When the position sensor acquires a signal that the paper 300 has moved to a position corresponding to the pre-bending mechanism 100, the position sensor can control the conveying mechanism 200 to stop working, so that the paper 300 is held in a fixed position and cooperates with the pre-bending mechanism 100.
[0046] Specifically, in some embodiments, the position sensor includes one or more of an image sensor, a through-beam sensor, and a pressure sensor. The conveying mechanism 200 can be driven by a servo motor to enable rapid start and stop.
[0047] See Figure 3 In a preferred embodiment of this invention, the pre-bending production line 10 further includes a fixing mechanism 400. The fixing mechanism 400 is signal-connected to a position sensor and can maintain the position of the paper 300 fixed according to the signal from the position sensor. This reduces the risk of the paper 300 shifting and causing the crease 310 to deviate when the pusher plate 130 moves towards the conveying mechanism 200. Specifically, the fixing mechanism 400 may include a pressure strip that can press the paper 300 firmly onto the bearing plane 210 of the conveying mechanism 200, or the fixing mechanism 400 may include multiple suction cups penetrating the bearing plane 210 to adsorb and fix the paper 300.
[0048] Finally, it should be noted that the above descriptions are merely embodiments of this utility model and are 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 pre-bending mechanism for forming creases at predetermined positions on paper, characterized in that, The paper is moved in a third direction by a conveying mechanism, and the pre-bending mechanism is disposed on the side of the conveying mechanism. The pre-bending mechanism includes: First driver; A second driver, which is connected to the first driver; A push plate, which is connected to the second driver, and the side edge of the push plate facing the conveying mechanism is substantially parallel to the third direction; Wherein, the first driver drives the second driver to move along a first direction; the second driver drives the pusher to move along a second direction, so that the pusher moves closer to or away from the conveying mechanism; the second direction is not parallel to the first direction; both the first direction and the second direction are approximately perpendicular to the third direction.
2. The pre-bending mechanism according to claim 1, characterized in that, The push plate is tilted downward toward the side of the conveying mechanism, and the plane on which the push plate is located has a preset angle relative to the bearing plane of the conveying mechanism; the preset angle is in the range of 5°-20°.
3. The pre-bending mechanism according to claim 2, characterized in that, The push plate is detachably connected to the second driver, or the relative angle between the push plate and the second driver is adjustable to change the angle of the plane on which the push plate is located relative to the bearing plane of the conveying mechanism.
4. The pre-bending mechanism according to claim 2 or 3, characterized in that, The second direction is approximately parallel to the plane in which the push plate is located.
5. The pre-bending mechanism according to any one of claims 1-3, characterized in that, The first driver drives the second driver and the push plate to move synchronously between a first preset position and a second preset position in the first direction; When the second driver and the push plate are in the first preset position, the push plate is located below the bearing plane of the conveying mechanism; when the second driver and the push plate are in the second preset position, the side edge of the push plate facing the conveying mechanism is located above the bearing plane of the conveying mechanism.
6. The pre-bending mechanism according to claim 5, characterized in that, The second driver drives the push plate to move between a third preset position and a fourth preset position in the second direction; At the third preset position, the push plate is away from the conveying mechanism; At the fourth preset position, the push plate is close to the conveying mechanism, and the crease of the paper is located between the push plate and the bearing plane of the conveying mechanism.
7. The pre-bending mechanism according to any one of claims 1-3, characterized in that, The push plate has a beveled or curved edge on one side facing the conveying mechanism.
8. The pre-bending mechanism according to any one of claims 1-3, characterized in that, The upper surface of the push plate has rollers, and when the second driver drives the push plate to move closer to the conveying mechanism in the second direction, the rollers roll and rub against the paper.
9. A pre-bending production line for forming creases at predetermined positions on paper, characterized in that, The pre-bending production line includes: A conveying mechanism, wherein the paper is laid flat on the bearing plane of the conveying mechanism, and the conveying mechanism drives the paper to move in a third direction; The pre-bending mechanism as described in any one of claims 1-8, wherein the pre-bending mechanism is disposed on one or both sides of the conveying mechanism.
10. The pre-bending production line according to claim 9, characterized in that, Also includes: A position sensor, configured to acquire the position of the paper on the conveying mechanism and signal-connected to the conveying mechanism; A fixing mechanism is connected to the position sensor signal and keeps the position of the paper fixed according to the signal from the position sensor.