A paper stacker

Abstract

The utility model discloses a paper stacker relates to papermaking and paper product processing technical field, including baseplate and mounting bracket, the inner top wall fixed mounting of mounting bracket has electric telescopic handle, in the utility model, when carrying out paper stack, first paper is placed on baseplate, and the electric telescopic handle of inner top wall in mounting bracket is started, and the first elastic part on fixed mount, the second elastic part inside first elastic part gradually close to paper, continue to move down after contact, and first elastic part, second elastic part are extruded deformation, and the reset piece between second elastic part and fixed sheet also is synchronous deformation, and the compression roller of first elastic part both sides rolls and presses on the paper surface, and the paper is preliminarily flattened and arranged, and the paper is neatly stacked, and the deformation of first elastic part, second elastic part, reset piece adapts to different thickness paper, and avoids stacking disorderly, and the compression roller rolling flattening can reduce paper gap, and smooth slightly wrinkle, and improve stacking compactness and neatness, and help to improve paper processing efficiency and quality.

Description

Technical Field

[0001] This utility model relates to the field of papermaking and paper product processing technology, specifically a paper stacking device. Background Technology

[0002] Paper is a thin sheet made from plant fibers, used as a material for writing, drawing, printing books and newspapers, packaging, etc. Paper: a general term for paper, measured in sheets, hence the name. Common types of paper include: letterpress printing paper, newsprint, offset printing paper, coated paper, book cover paper, dictionary paper, tracing paper, and cardboard. Properly selecting and using paper is crucial for ensuring the quality of publications and reducing their costs. After printing, paper needs to be stacked.

[0003] In current paper stacking equipment, paper is prone to wrinkles during processing and conveying. When such wrinkled paper enters the stacking equipment, it will increase the overall volume of the stacked paper. At the same time, untreated wrinkles will also have an adverse effect on the quality of the final product. In addition, after the paper is stacked, some papers are often misaligned, requiring workers to manually align them. This process is time-consuming and increases labor costs. Utility Model Content

[0004] The purpose of this invention is to provide a paper stacking device to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a paper stacking device, including a base and a mounting frame. An electric telescopic rod is fixedly installed on the inner top wall of the mounting frame, and a fixing frame is fixedly installed on the telescopic end of the electric telescopic rod. A first elastic element is provided on the fixing frame, a second elastic element is fixedly installed inside the first elastic element, a fixing plate is fixedly installed on the second elastic element, and a reset element is fixedly installed between the second elastic element and the fixing plate. Pressure rollers are provided on both sides of the first elastic element.

[0006] Furthermore, the first elastic element and the second elastic element are both V-shaped, and the reset element is arc-shaped.

[0007] Furthermore, the first elastic element, the second elastic element, and the reset element are all made of spring steel.

[0008] Furthermore, two mounting blocks are fixedly installed on the top of the base, and a clamping plate is provided on the opposite side of each of the two mounting blocks. A third elastic element is fixedly installed between the mounting blocks and the clamping plates.

[0009] Furthermore, the third elastic element is formed by two arc-shaped spring steels arranged alternately.

[0010] Furthermore, a damper and a return spring are fixedly installed between the mounting block and the clamping plate, with the return spring sleeved on the outside of the damper.

[0011] Furthermore, the clamping plate has an inclined surface near the top.

[0012] Furthermore, an elastic cloth is provided between the mounting block and the clamping plate, and the elastic cloth is placed on top of the third elastic element, the damper, and the return spring.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, when stacking paper, the paper is first placed on the base, and the electric telescopic rod on the top wall of the mounting frame is activated. Its telescopic end drives the fixed frame to move downward, causing the first elastic element and the second elastic element inside the first elastic element on the fixed frame to gradually approach the paper. After contact, it continues to move downward, and the first and second elastic elements are compressed and deformed. The reset element between the second elastic element and the fixed piece also deforms synchronously. At the same time, the pressure rollers on both sides of the first elastic element roll and press on the surface of the paper, initially flattening and tidying the paper, which helps to stack it neatly. By driving the fixed frame downward through the electric telescopic rod, the deformation of the first elastic element, the second elastic element, and the reset element can adapt to paper of different thicknesses, avoiding uneven stacking. The rolling and flattening of the pressure rollers can reduce the gaps between the papers, smooth out slight wrinkles, improve the compactness and neatness of the stack, and provide convenience for subsequent packaging and handling, thus helping to improve the efficiency and quality of paper processing.

[0014] 2. In this utility model, clamping plates are provided on the opposite surfaces of the two mounting blocks at the top of the base. The third elastic element between the mounting blocks and the clamping plates can push the clamping plates from both sides to move closer together when the paper is stacked, apply a stable clamping force to the side of the paper, correct the left and right offset to ensure the side alignment; at the same time, the third elastic element can flexibly extend and retract with the width of the stacked paper to adapt to different widths of paper, eliminating the need for manual adjustment of the clamping plate spacing, reducing operation steps, and the elastic clamping can avoid rigid compression that causes wrinkles or damage to the paper edges, keeping the stacked paper neat and facilitating subsequent processing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a side view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the connection structure between the first elastic element and the second elastic element in this utility model; Figure 4 for Figure 1 Enlarged view of the structure at point A in the middle.

[0016] In the diagram: 1. Base; 2. Mounting bracket; 3. Electric telescopic rod; 4. Fixing bracket; 5. First elastic element; 6. Second elastic element; 7. Reset element; 8. Fixing plate; 9. Pressure roller; 10. Mounting block; 11. Clamping plate; 12. Third elastic element; 13. Damper; 14. Reset spring. Detailed Implementation

[0017] 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.

[0018] Please see Figures 1-4 This utility model provides a technical solution: See Figures 1-4 As shown, a paper stacking device includes a base 1 and a mounting frame 2. An electric telescopic rod 3 is fixedly installed on the inner top wall of the mounting frame 2. A fixing frame 4 is fixedly installed on the telescopic end of the electric telescopic rod 3. A first elastic element 5 is provided on the fixing frame 4. A second elastic element 6 is fixedly installed inside the first elastic element 5. A fixing piece 8 is fixedly installed on the second elastic element 6. A reset element 7 is fixedly installed between the second elastic element 6 and the fixing piece 8. Pressure rollers 9 are provided on both sides of the first elastic element 5.

[0019] When stacking paper, the paper to be stacked is first placed on the base 1. Then, the electric telescopic rod 3 on the top wall of the mounting frame 2 is activated. The telescopic end of the electric telescopic rod 3 will drive the fixing frame 4 to move downward. During the downward movement of the fixing frame 4, the first elastic element 5 and the second elastic element 6 inside the first elastic element 5 will gradually approach the paper. After the first elastic element 5 and the second elastic element 6 come into contact with the paper, the frame continues to move downward. The first elastic element 5 and the second elastic element 6 will deform due to the pressure of the paper. At the same time, the reset element 7 between the second elastic element 6 and the fixing piece 8 will also be deformed due to the pressure. During this process, the pressure rollers 9 on both sides of the first elastic element 5 will roll and press against the surface of the paper, performing preliminary flattening and sorting of the paper, so that the paper can be arranged more neatly when stacked.

[0020] The electric telescopic rod 3 drives the fixing frame 4 to move downwards. The deformation of the first elastic element 5, the second elastic element 6, and the reset element 7 adapts to the stacking requirements of papers of different thicknesses, avoiding uneven stacking caused by large differences in paper thickness. Moreover, the pressure rollers 9 on both sides of the first elastic element 5 roll and flatten the paper surface, reducing gaps between papers and making the paper stack more compact. At the same time, it can also smooth out any slight wrinkles that may exist in the paper, further improving the neatness of the paper stack. This facilitates subsequent operations such as packaging and handling of the stacked paper, and helps to improve the overall efficiency and quality of paper processing.

[0021] The length of the first elastic element 5 in the horizontal direction of the ridge can be set as needed.

[0022] See Figure 3 The first elastic element 5 and the second elastic element 6 are both V-shaped, and the reset element 7 is arc-shaped.

[0023] The first elastic element 5 and the second elastic element 6 are V-shaped. When they come into contact with the paper and are squeezed, their two arms can retract towards the center, distributing the force evenly to the paper surface and preventing excessive local pressure that could cause paper deformation. At the same time, the V-shaped structure can flexibly adjust its opening angle according to the thickness of the stacked paper, adapting to the stacking needs of paper of different thicknesses. The reset element 7 is arc-shaped, which can deform along the arc trajectory when compressed, providing a buffer between the second elastic element 6 and the fixing piece 8, reducing damage to the paper from rigid contact. Moreover, the arc-shaped structure returns to its original shape more smoothly after deformation, which can drive the first elastic element 5 and the second elastic element 6 of the V-shape to reset synchronously, ensuring the uniformity of pressure during the next stacking. These shape designs work together to make the paper experience gentler and more even force during stacking, further improving the neatness of the stack and protecting the paper from damage.

[0024] See Figure 3 The first elastic element 5, the second elastic element 6, and the reset element 7 are all made of spring steel.

[0025] The first elastic element 5, the second elastic element 6, and the reset element 7 are made of spring steel, which has good elasticity and toughness. When they are in contact with paper and deformed under pressure, they can generate a stable elastic force on the paper surface, ensuring uniform and continuous pressure on the paper. At the same time, spring steel has strong fatigue resistance. After multiple deformations and resets, it can still maintain its original elasticity and structural stability, and is not prone to breakage or permanent deformation, thus extending the service life of the components. In addition, the spring steel has moderate hardness. When in contact with paper, it can conform to the paper surface through appropriate deformation without scratching or damaging the paper due to excessive hardness, ensuring the integrity of the paper during the stacking process. These characteristics allow the elastic elements to function stably for a long time, improving the reliability of the device and the stacking effect.

[0026] See Figure 4 Two mounting blocks 10 are fixedly installed on the top of the base 1. Each mounting block 10 has a clamping plate 11 on its opposite side. A third elastic element 12 is fixedly installed between the mounting block 10 and the clamping plate 11.

[0027] Two mounting blocks 10 on the top of the base 1 are fitted with clamping plates 11 facing each other. A third elastic element 12 between the mounting blocks 10 and the clamping plates 11 can push the clamping plates 11 from both sides toward the middle when the paper is stacked, applying a stable clamping force to the sides of the paper, correcting any left or right offset that may occur during the stacking process, and ensuring that the sides of the paper are aligned. At the same time, the third elastic element 12 can flexibly extend and retract with the change of the width of the stacked paper to adapt to different widths of paper, eliminating the need for manual adjustment of the clamping plate spacing 11 and reducing operation steps. In addition, the elastic clamping method can avoid rigid compression of the paper, prevent the paper edges from wrinkling or breaking, and keep the stacked paper in a neat state for easy subsequent processing.

[0028] See Figure 4 The third elastic element 12 is formed by two arc-shaped spring steels arranged alternately.

[0029] The third elastic element 12 is composed of two interlaced arc-shaped spring steels. When this structure is squeezed by the clamping plate 11, the two arc-shaped spring steels can deform from different directions, providing the clamping plate 11 with a softer and more uniform elastic force, making the clamping force of the clamping plate 11 more stable and avoiding paper clamping deviation due to uneven elastic force. At the same time, the interlaced arc structure has a larger contact area during deformation, which can better disperse the pressure on the paper and prevent the paper edge from being damaged due to excessive local pressure. Moreover, the arc-shaped spring steel has good elastic recovery performance, which can drive the clamping plate 11 to quickly reset when the paper is taken out or the stacking width changes, continuously providing appropriate clamping force for papers of different widths, so that the paper always maintains a neat side alignment when stacked, improving the stacking effect.

[0030] See Figure 4 A damper 13 and a return spring 14 are fixedly installed between the mounting block 10 and the clamping plate 11, with the return spring 14 sleeved on the outside of the damper 13.

[0031] The damper 13 between the mounting block 10 and the clamping plate 11, and the return spring 14 sleeved on its outside, allow the clamping plate 11 to move due to changes in the width of the paper stack. The return spring 14 can quickly push the clamping plate 11 to adjust its position through its own elasticity, ensuring that the clamping force on the side of the paper is always maintained and preventing the paper from shifting. The damper 13 can slow down the rebound speed of the return spring 14, preventing the clamping plate 11 from hitting the paper or the mounting block 10 due to excessive rebound, reducing the risk of damage to the paper edge. At the same time, the damper 13 can also make the movement of the clamping plate 11 smoother. Even if there is slight shaking during the paper stacking process, the damping effect can maintain the clamping stability and prevent the paper stack from becoming skewed. The return spring 14 sleeved on the outside of the damper 13 can also protect the damper 13, reducing the impact of external dust or debris on the damper 13, extending its service life, and allowing the clamping and adjustment functions of the clamping plate 11 to perform stably for a long time.

[0032] See Figure 4 The clamping plate 11 has an inclined surface near the top.

[0033] The clamp 11 has an inclined surface near the top. When the paper is placed on the base 1 for stacking, the inclined surface can form a guide channel, making it easier for the paper to slide from the top between the two clamps 11. This avoids the paper getting stuck or the corners being damaged due to the top edge of the clamp 11 being too sharp or vertical. At the same time, if the paper side shifts slightly during the stacking process, the inclined surface can also slowly correct the paper position by its own inclination angle, helping the paper to smoothly fit the inside of the clamp 11, reducing the frequency of manual paper adjustment, making the alignment operation when stacking paper more convenient, and further improving stacking efficiency and neatness.

[0034] See Figure 4 An elastic cloth is provided between the mounting block 10 and the clamping plate 11. The elastic cloth is located on top of the third elastic element 12, the damper 13, and the return spring 14.

[0035] The elastic cloth between the mounting block 10 and the clamping plate 11 is placed on top of the third elastic element 12, the damper 13, and the return spring 14. It can prevent paper scraps, dust, and other debris that may fall during the stacking process from entering the gaps of these components. This prevents debris from affecting the elastic expansion and contraction of the third elastic element 12, the buffering effect of the damper 13, and the normal rebound of the return spring 14, ensuring the long-term stable operation of the components. At the same time, the elastic cloth is elastic and can expand and contract synchronously with the movement of the clamping plate 11. It will not hinder the position adjustment of the clamping plate 11 due to changes in paper width. It can also prevent operators from accidentally touching the bottom components when placing or removing paper, reducing the possibility of component damage or accidental contact, making the device safer to use and easier to maintain.

[0036] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A paper stacking device, comprising a base (1) and a mounting frame (2), characterized in that: An electric telescopic rod (3) is fixedly installed on the inner top wall of the mounting frame (2). A fixed frame (4) is fixedly installed on the telescopic end of the electric telescopic rod (3). A first elastic element (5) is provided on the fixed frame (4). A second elastic element (6) is fixedly installed inside the first elastic element (5). A fixed piece (8) is fixedly installed on the second elastic element (6). A reset element (7) is fixedly installed between the second elastic element (6) and the fixed piece (8). Pressure rollers (9) are provided on both sides of the first elastic element (5).

2. The paper stacking device as described in claim 1, characterized in that: The first elastic element (5) and the second elastic element (6) are both V-shaped, and the reset element (7) is arc-shaped.

3. The paper stacking device as described in claim 2, characterized in that: The first elastic element (5), the second elastic element (6), and the reset element (7) are all made of spring steel.

4. A paper stacking device as described in claim 3, characterized in that: Two mounting blocks (10) are fixedly installed on the top of the base (1). Each of the two mounting blocks (10) has a clamping plate (11) on its opposite side. A third elastic element (12) is fixedly installed between the mounting block (10) and the clamping plate (11).

5. A paper stacking device as described in claim 4, characterized in that: The third elastic element (12) is formed by two arc-shaped spring steels arranged alternately.

6. A paper stacking device as described in claim 5, characterized in that: A damper (13) and a return spring (14) are fixedly installed between the mounting block (10) and the clamping plate (11), and the return spring (14) is sleeved on the outside of the damper (13).

7. A paper stacking device as described in claim 6, characterized in that: The clamp (11) has an inclined surface near the top.

8. A paper stacking device as described in claim 7, characterized in that: An elastic cloth is provided between the mounting block (10) and the clamping plate (11), and the elastic cloth is placed on top of the third elastic element (12), the damper (13), and the return spring (14).

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