A paper sheet turning device

Abstract

The application relates to the field of material conveying and overturning, in particular to a paper piece overturning device. The paper piece overturning device comprises a rack, the rack is provided with a conveying part for conveying paper pieces and an overturning mechanism, the overturning mechanism is used for overturning the paper pieces in the conveying process, the overturning mechanism comprises a first overturning assembly and a second overturning assembly for pressing the surface of the paper pieces, a conveying channel is formed between the first overturning assembly and the second overturning assembly, the conveying part is located in the conveying channel, the paper pieces at the feeding end of the conveying part are in a first paper piece state, the paper pieces at the discharging end of the conveying part are in a second paper piece state, when the conveying part drives the paper pieces to convey along the conveying channel, the first overturning assembly and the second overturning assembly guide the paper pieces to gradually change from the first paper piece state to the second paper piece state. The overturning device can improve the convenience of manual paper piece taking at the discharging end of a paper folding machine, thereby improving the taking efficiency and accuracy.

Description

Technical Field

[0001] This application relates to the field of material conveying and flipping, and in particular to a paper flipping device. Background Technology

[0002] Folding machines, as automated devices capable of folding flat paper or packaging materials into specific shapes, play a crucial role in the packaging industry. With the development of the times, industries such as pharmaceuticals and cosmetics have increasingly higher requirements for the appearance and sophistication of product packaging, while also demanding higher standards for production efficiency. In recent years, automated folding technology has developed rapidly, comprehensively utilizing advanced technologies such as mechanical transmission and pneumatic control to achieve precise paper folding. This technological advancement has enabled a qualitative leap in the packaging industry in terms of production efficiency and product consistency, greatly improving enterprise production efficiency and enabling products to better meet market demands for high-quality packaging.

[0003] Currently, paper folding machines on the market mainly use a paper separating device, a conveying device, and a folding device to complete the folding operation. The paper separating device separates stacked papers, preventing multiple sheets from sticking together and ensuring that only one sheet is conveyed at a time. The conveying device smoothly transports the paper to the folding device, preventing the paper from shifting during high-speed transport and ensuring that the paper remains flat during transport, avoiding wrinkles or misalignment caused by airflow or vibration. The folding device folds the paper in the process of transport according to a preset folding pattern, using photoelectric sensors to calculate in real time to ensure accurate folding position. The folded papers are then conveyed one by one to the receiving table in a flat stack, and then manually removed from the receiving table and transferred to the next process.

[0004] However, existing paper folding machines still have significant drawbacks in practical applications. When relying on manual handling of the paper at the receiving table, the paper, laid flat and stacked, is prone to scattering, making manual handling cumbersome and reducing the convenience of material retrieval. Summary of the Invention

[0005] In order to improve the convenience of manual handling of paper, thereby improving material handling efficiency and accuracy, this application provides a paper flipping device.

[0006] This application provides a paper flipping device, including a frame. The frame is provided with a conveyor for conveying paper and a flipping mechanism. The flipping mechanism is used to flip the paper during the conveying process. The flipping mechanism includes a first flipping component and a second flipping component that press the surface of the paper, forming a conveying channel between them. The conveyor is located in the conveying channel. The paper at the feed end of the conveyor is in a first paper state, and the paper at the discharge end of the conveyor is in a second paper state. When the conveyor drives the paper to be conveyed along the conveying channel, the first flipping component and the second flipping component guide the paper to gradually change from the first paper state to the second paper state.

[0007] By adopting the above technical solution, a conveying component and a flipping mechanism are installed on the frame. The first and second flipping components press the paper surface together to form a conveying channel, and the conveying component, located within the channel, drives the paper to be conveyed. During the conveying process, due to the constraint and guidance of the first and second flipping components on the paper surface, the paper gradually transitions from its initial state at the feeding end to its final state at the output end, achieving flipping of the paper during conveying. This structural design flips the paper at the output end of the folding machine into a position that is easy for manual handling, ensuring high efficiency and accuracy in paper flipping. It also allows for better integration with subsequent processes, making it suitable for automated production processes and improving the overall smoothness and stability of production.

[0008] Preferably, the first flipping component includes a plurality of first rollers spaced apart on the frame. The first rollers are rotatably disposed, and the paper is located between the first rollers and the conveyor. The first rollers press the side of the paper away from the conveyor.

[0009] By adopting the above technical solution, when the conveyor drives the paper, the first roller can rotate, which can effectively reduce the friction between the first roller and the paper surface, thus preventing the paper from being damaged due to friction. Moreover, the first roller presses the paper firmly, which can prevent the paper from shifting or wrinkling during the conveying process, ensuring the stability of the paper during the conveying process, and thus facilitating subsequent flipping operations.

[0010] Preferably, the second flipping assembly includes a plurality of second rollers spaced apart on the frame, the second rollers being rotatably disposed, the conveying member being located between the paper and the second rollers, and the second rollers pressing against the side of the conveying member away from the paper.

[0011] By adopting the above technical solution, when the conveyor drives the paper, the second roller can rotate along with the movement of the paper, cooperating with the first flipping component to better constrain the paper in the conveying channel formed between them. When the conveyor is pressed, the stability of the conveyor during paper transport is ensured. Furthermore, pressing the conveyor maintains good contact between the paper and the conveyor, reducing slippage or deviation of the paper during transport.

[0012] Preferably, the first roller corresponds to the second roller in a one-to-one manner, and the corresponding first roller and second roller are arranged parallel to each other on their axes.

[0013] By adopting the above technical solution, the first roller and the second roller can stably press and guide the paper on opposite sides. Since their axes are parallel, the paper is subjected to uniform force in the conveying channel, and will not shift or wrinkle due to uneven force, thus ensuring the stability of the paper during the conveying process.

[0014] Preferably, the axis of rotation of the first roller and the second roller at the feeding end is in a first axis state, and the axis of rotation of the first roller and the second roller at the discharging end is in a second axis state. When the conveying component drives the paper to be conveyed along the conveying channel, the axis of rotation of the first roller and the second roller gradually changes from the first axis state to the second axis state, and the paper gradually changes from the first paper state to the second paper state.

[0015] By adopting the above technical solution, when the conveyor carries the paper along the conveyor channel, the first and second rollers are rotatable and their axes can gradually change from the first axis state to the second axis state. During rotation, a continuous and stable force is generated on the paper. The first roller presses the side of the paper away from the conveyor, and the second roller presses the side of the conveyor away from the paper. The two cooperate with each other, allowing the paper to gradually change from the first paper state to the second paper state under this stable clamping and guiding action during the conveying process. This achieves smooth flipping of the paper during the conveying process, avoiding wrinkles, deviations, or damage to the paper during flipping, ensuring the stability and accuracy of paper flipping, and improving the quality and efficiency of paper flipping.

[0016] Preferably, the first paper piece is in a horizontal position, the second paper piece is in a vertical position, the first axis is in a horizontal position, and the second axis is in a vertical position.

[0017] By adopting the above technical solution, when the conveyor carries the paper along the conveyor channel, the axes of the first and second rollers gradually change from a horizontal first axis state to a vertical second axis state. Under the combined action of the first roller pressing the side of the paper away from the conveyor and the second roller pressing the side of the conveyor away from the paper, the paper gradually changes its state following the change in the roller axis state. This allows the originally horizontally positioned paper to gradually change from the first paper state to the vertically positioned second paper state. Vertically positioned paper is easier to stack neatly, reducing the possibility of paper scattering during stacking, improving the convenience and stability of subsequent operations, and also facilitating the orderly arrangement and conveying of paper on automated production lines, thereby improving overall production efficiency.

[0018] Preferably, the device further includes a guide member, which is disposed on the frame corresponding to the second roller member. The feed end of the guide member is located on one side of the axis of the second roller, and the discharge end of the guide member is located above the axis of the second roller. The guide member contacts the paper to guide the paper to be conveyed.

[0019] By adopting the above technical solution, when the paper comes into contact with the guide during the conveying process, the difference in position between the feed end and the discharge end of the guide can guide the conveying direction of the paper. This guiding effect allows the paper to move more smoothly along the conveying channel, avoiding deviation or jamming during the conveying process, ensuring that the paper can be accurately conveyed from the feed end to the discharge end of the conveyor, thus improving the stability and accuracy of paper conveying.

[0020] Preferably, the conveying component includes a conveyor belt, and the conveyor belt is provided with anti-slip strips.

[0021] By adopting the above technical solution, the conveyor is equipped with anti-slip strips, which increase the friction between the paper and the conveyor. During the paper conveying process, the greater friction effectively prevents the paper from sliding or shifting, allowing the paper to be conveyed more stably on the conveyor.

[0022] Preferably, the distance between the feed end and the discharge end of the conveying channel remains consistent.

[0023] By adopting the above technical solution, the distance between the feed end and the discharge end of the conveying channel remains consistent, enabling stable conveying of paper within the conveying channel. Because the distance is constant, the paper will not be subjected to additional compression or stretching due to changes in the channel distance during conveying, avoiding problems such as wrinkles and damage to the paper, thereby ensuring the stability and integrity of the paper during conveying and flipping.

[0024] Preferably, it further includes a discharge mechanism, which is disposed on the frame and located at the discharge end of the flipping mechanism. The discharge mechanism includes a conveying component, the conveying direction of which is perpendicular to the conveying direction of the conveying component, for arranging and conveying the flipped paper pieces.

[0025] By adopting the above technical solution, a discharge mechanism is set on the frame at the discharge end of the flipping mechanism, and the conveying direction of the conveyor in the discharge mechanism is perpendicular to the conveying direction of the transmission component. After the paper is flipped by the flipping mechanism, the conveying direction of the paper is changed due to the perpendicular setting of the conveyor and transmission component. In this way, the paper can be arranged and conveyed in a certain pattern, avoiding the disorderly stacking of paper, which facilitates the subsequent sorting and collection of paper, improves the efficiency and convenience of paper processing, and provides better conditions for subsequent processing or packaging processes.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The first and second flipping components of the flipping mechanism press the paper together, forming a conveying channel between them. The conveying component is located in the conveying channel and drives the paper to be conveyed, so that the paper gradually changes from the first paper state to the second paper state. In this way, when manually picking up the paper, the situation of stacked paper easily falling apart can be avoided, thereby improving the convenience of picking up the paper. 2. The conveyor is equipped with anti-slip strips. During the paper conveying process, the anti-slip strips can increase the friction between the paper and the paper, thereby conveying the paper better and ensuring the stability of the paper during the conveying process; 3. The discharge mechanism is set on the frame and located at the discharge end of the flipping mechanism. The conveying direction of its conveying component is perpendicular to the conveying direction of the conveying component. Through this vertical conveying method, the flipped paper can be arranged and conveyed. Attached Figure Description

[0027] Figure 1 This is a structural diagram of a paper flipping device according to this application; Figure 2 This is a top view of a paper flipping device according to this application; Figure 3 This is a right view of a paper flipping device according to this application.

[0028] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Conveying component; 3. Tilting mechanism; 4. Discharge mechanism; 21. Conveyor belt; 211. Anti-slip strip; 31. First tilting assembly; 32. Second tilting assembly; 33. Guide component; 34. Conveying channel; 311. First roller; 321. Second roller; 41. Conveying component; 42. Guide plate. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-3This application will be described in further detail.

[0030] Embodiment 1 of this application provides a paper flipping device, referring to... Figure 1 The device includes a frame 1, a conveyor 2, a flipping mechanism 3, and a discharge mechanism 4. The frame 1 serves as the supporting structure for the entire device, providing the mounting base for the conveyor 2 and the flipping mechanism 3. The conveyor 2 is fixedly mounted on the frame 1 and is used to convey paper. The flipping mechanism 3 is also detachably mounted on the frame 1 via bolts and is used to flip the paper conveyed by the conveyor 2. The discharge mechanism 4 arranges and conveys the flipped paper in an orderly manner. These mechanisms work together to achieve the flipping function of the paper during the conveying process, facilitating quick manual removal of the paper from the discharge mechanism 4. In this embodiment, the flipping device is placed at the discharge end of the folding mechanism of the paper folding machine, allowing the paper from the discharge end of the folding mechanism to be smoothly conveyed to the feed end of the conveyor 2.

[0031] Specifically, in this embodiment, the conveyor 2 includes a conveyor belt 21 and two drive rollers. One drive roller is located at the feed end, and the other at the discharge end. The drive roller at the feed end is driven to rotate by a motor, which is bolted to the frame 1. The motor's output shaft is connected to the drive wheel of the conveyor belt 21 via a coupling. When the motor rotates, it drives the drive roller at the feed end to rotate, thereby causing the conveyor belt 21 to rotate cyclically, thus conveying the paper. The conveyor belt 21 has the characteristics of a flat surface and stable transmission, ensuring smooth movement of the paper during the conveying process. In particular, in this embodiment, the drive roller at the feed end rotates around a horizontal axis, and the drive roller at the discharge end rotates around a vertical axis.

[0032] Specifically, both sides of the conveyor belt 21 are equipped with anti-slip strips 211. These strips increase the friction between the paper and the conveyor 2, preventing the paper from slipping during transport and ensuring stable paper delivery. The anti-slip strips 211 can be made of rubber and are fixed to the surface of the conveyor belt 21 by adhesive bonding or vulcanization. The anti-slip strips 211 are typically long and evenly distributed along the conveying direction of the conveyor belt 21, increasing the contact area between the paper and the conveyor 2, thereby improving friction.

[0033] Reference Figure 2 and Figure 3Specifically, the flipping mechanism 3 includes a first flipping component 31, a second flipping component 32, and a guide member 33. A conveying channel 34 is formed between the first flipping component 31 and the second flipping component 32. In this embodiment, the conveyor belt 21 is located within the conveying channel 34. The spacing between the feed end and the discharge end of the conveying channel 34 remains consistent, ensuring uniform constraint on the paper during conveying and preventing deformation due to uneven stress. The conveying channel 34 is a space enclosed by the first flipping component 31, the second flipping component 32, and the guide member 33, and the consistency of their spacing is achieved through precise design. Specifically, the section of the conveyor belt 21 that performs the conveying function moves within the conveying channel 34, while the section of the conveyor belt 21 that circulates back to the feed end forms a non-interlocking fit with the second flipping component 32, ensuring that the second flipping component 32 does not affect the circulation of the conveyor belt 21.

[0034] The first flipping assembly 31 includes a plurality of first rollers 311 spaced apart on the frame 1. Each first roller 311 is mounted on the frame 1 via a mounting bracket, and the first roller 311 is rotatably connected to the mounting bracket. The paper is located between the first roller 311 and the conveyor 2, with the first roller 311 pressing the side of the paper away from the conveyor 2. The first rollers 311 can be made of metal, and their smooth surfaces allow for better pressure on the paper, preventing slippage during conveying. The first rollers 311 are mounted on the mounting bracket via bearings. The inner ring of the bearing is interference-fitted with the rotating shaft of the first roller 311, and the outer ring of the bearing is fixed to the mounting bracket via a bearing seat. This reduces friction during roller rotation, making the roller rotation smoother.

[0035] The second flipping assembly 32 includes several second rollers 321 spaced apart on the frame 1. The second rollers 321 are rotatable, and the conveyor 2 is located between the paper and the second rollers 321. The second rollers 321 press against the side of the conveyor 2 away from the paper. The second rollers 321 are also made of metal, and their structure, rotation principle, and installation method are the same as the first rollers 311. Each second roller 321 corresponds to one first roller 311, and the axes of the corresponding first rollers 311 and second rollers 321 are parallel. Specifically, the installation positions of the first rollers 311 and second rollers 321 on the frame 1 are precisely designed to ensure that their axes are in the same vertical plane and parallel to each other. This arrangement ensures that the paper is subjected to uniform pressure during conveying, thus smoothly transitioning from the first paper state to the second paper state.

[0036] Specifically, the axis of rotation of the first roller 311 and the second roller 321 at the feeding end is in a first axis state, and the axis of rotation of the first roller 311 and the second roller 321 at the discharging end is in a second axis state. When the conveyor 2 drives the paper to be conveyed along the conveying channel 34, the axis of rotation of the first roller 311 and the second roller 321 gradually changes from the first axis state to the second axis state, and the paper gradually changes from the first paper state to the second paper state. In this embodiment, the first paper state is when the paper is horizontally set, and the second paper state is when the paper is vertically set; the first axis state is when the axis is horizontally set, and the second axis state is when the axis is vertically set. This design allows the paper to smoothly flip from horizontal to vertical during the conveying process.

[0037] Specifically, in this embodiment, the guide member 33 is disposed on the frame 1 corresponding to the second roller 321. The feed end of the guide member 33 is located on one side of the axis of the second roller 321, and the discharge end of the guide member 33 is located above the axis of the second roller 321. The guide member 33 contacts the larger paper piece to guide its conveying. In this embodiment, the guide strip is made of a soft and flexible material and is fixedly installed on the frame 1 by bolts. The shape of the guide plate can be designed according to the flipping path of the paper piece, and is curved to ensure that the paper piece can accurately change from the first paper piece state to the second paper piece state. The feed end of the guide strip maintains a certain horizontal distance from one side of the axis of the second roller 321, and the discharge end is higher than the axis of the second roller 321, forming a curved guide surface. The paper piece gradually changes direction along this guide surface during conveying.

[0038] Specifically, in this embodiment, the discharge mechanism 4 is disposed on the frame 1 and located at the discharge end of the flipping mechanism 3. The discharge mechanism 4 includes a conveyor 41 for arranging and conveying the flipped paper pieces and two guide plates 42. The conveying direction of the conveyor 41 is perpendicular to the conveying direction of the conveyor 2. The conveyor 41 can be a conveyor belt, which is fixedly installed on the frame 1 by a bracket. The conveyor belt is driven by a motor, which drives the conveyor belt to rotate through belt transmission. The two guide plates 42 are installed at the feed end of the conveyor belt. When the flipped paper pieces enter the conveyor belt from the conveyor 2, the conveying direction of the paper pieces changes instantaneously, causing the paper pieces to be arranged neatly and orderly along the guide plates 42. Under the conveying action of the conveyor belt, the neatly arranged paper pieces can be conveyed to a designated position for subsequent collection and processing.

[0039] The implementation principle of this embodiment is as follows: Paper conveying preparation: The flipping device is placed at the discharge end of the folding mechanism of the paper folding machine, allowing the paper to be smoothly conveyed to the feed end of the conveyor 2. The conveyor 2 includes a conveyor belt 21 and two drive rollers. The feed end drive rollers are driven by a motor, and the motor output shaft is connected to the drive wheel of the conveyor belt 21 via a coupling. The rotation of the motor drives the feed end drive rollers to rotate, thereby causing the conveyor belt 21 to rotate cyclically, thus realizing the paper conveying. Anti-slip strips 211 are provided on both sides of the conveyor belt 21 to increase the friction between the paper and the conveyor 2, prevent the paper from slipping, and ensure stable conveying.

[0040] Paper flipping process: The rotation axes of the first roller 311 and the second roller 321 at the feeding end are in the first axis state, and the rotation axes of the first roller 311 and the second roller 321 at the discharging end are in the second axis state. When the conveyor 2 drives the paper along the conveying channel 34, the rotation axes of the first and second rollers gradually change from the first axis state to the second axis state, and the paper gradually changes from the first paper state to the second paper state, achieving a smooth flipping from horizontal to vertical. The guide 33 is set on the frame 1 corresponding to the second roller 321. The feeding end is located on one side of the axis of the second roller 321, and the discharging end is located above the axis of the second roller 321. It is made of a soft and flexible material and is fixed by bolts. Its shape is curved to guide the paper to flip accurately.

[0041] Paper feeding and sorting: The feeding mechanism 4 is located on the frame 1 and at the feeding end of the flipping mechanism 3. It includes a conveyor 41 and two guide plates 42. The conveyor 41 is perpendicular to the conveying direction of the conveyor 2 and can be a conveyor belt. It is fixedly installed by a bracket and driven by a motor through belt drive. The two guide plates 42 are installed at the feeding end of the conveyor belt. When the flipped paper enters the conveyor belt from the conveyor 2, due to the change in conveying direction, it is orderly arranged under the guidance of the guide plates 42 and transported to the designated position by the conveyor belt for easy collection and processing.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A paper flipping device, characterized in that, The device includes a frame (1), which is provided with a conveyor (2) for conveying paper and a flipping mechanism (3). The flipping mechanism (3) is used to flip the paper during the conveying process. The flipping mechanism (3) includes a first flipping component (31) and a second flipping component (32) that press the surface of the paper, and a conveying channel (34) is formed between them. The conveyor (2) is located in the conveying channel (34). The paper at the feed end of the conveyor (2) is in a first paper state, and the paper at the discharge end of the conveyor (2) is in a second paper state. When the conveyor (2) drives the paper to be conveyed along the conveying channel (34), the first flipping component (31) and the second flipping component (32) guide the paper to gradually change from the first paper state to the second paper state.

2. The paper flipping device according to claim 1, characterized in that, The first flipping assembly (31) includes a plurality of first rollers (311) spaced apart on the frame (1). The first rollers (311) are rotatably disposed. The paper is located between the first rollers (311) and the conveyor (2). The first rollers (311) press the side of the paper away from the conveyor (2).

3. The paper flipping device according to claim 2, characterized in that, The second flipping assembly (32) includes a plurality of second rollers (321) spaced apart on the frame (1). The second rollers (321) are rotatably disposed. The conveyor (2) is located between the paper and the second rollers (321). The second rollers (321) press against the side of the conveyor (2) away from the paper.

4. The paper flipping device according to claim 3, characterized in that, The first roller (311) corresponds to the second roller (321) one by one, and the corresponding first roller (311) and second roller (321) are arranged parallel to each other on the axis.

5. A paper flipping device according to claim 3, characterized in that, The axis of rotation of the first roller (311) and the second roller (321) at the feeding end is in the first axis state, and the axis of rotation of the first roller (311) and the second roller (321) at the discharging end is in the second axis state. When the conveying member (2) drives the paper to be conveyed along the conveying channel (34), the axis of rotation of the first roller (311) and the second roller (321) gradually changes from the first axis state to the second axis state, and the paper gradually changes from the first paper state to the second paper state.

6. The paper flipping device according to claim 5, characterized in that, The first paper state is a horizontal setting, the second paper state is a vertical setting, the first axis state is a horizontal setting, and the second axis state is a vertical setting.

7. The paper flipping device according to claim 3, characterized in that, It also includes a guide (33), which is disposed on the frame (1) corresponding to the second roller (321). The feed end of the guide (33) is located on one side of the axis of the second roller (321), and the discharge end of the guide (33) is located above the axis of the second roller (321). The guide (33) contacts the paper to guide the paper to be conveyed.

8. A paper flipping device according to claim 1, characterized in that, The conveyor (2) includes a conveyor belt with anti-slip strips (211).

9. A paper flipping device according to claim 1, characterized in that, The distance between the feed end and the discharge end of the conveying channel (34) remains consistent.

10. A paper flipping device according to claim 1, characterized in that, It also includes a discharge mechanism (4), which is disposed on the frame (1) and located at the discharge end of the flipping mechanism (3). The discharge mechanism (4) includes a conveyor (41), the conveying direction of which is perpendicular to the conveying direction of the conveyor (2), and is used to arrange and convey the flipped paper.

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