Paper drying rack with different sizes

Abstract

The utility model relates to papermaking technical field especially, it relates to a kind of paper drying rack for papermaking to adapt to different sizes, solve the problem that the paper drying rack in prior art is mostly fixed structure, its frame size and clamping spacing are not adjustable, it is difficult to adapt to the different size paper fixed demand.A kind of paper drying rack for papermaking to adapt to different sizes, including bottom frame, the inner side of bottom frame is rotatably connected with carrier bar, and the outer wall side of bottom frame is fixedly connected with driving motor by bolt, the one end of carrier bar is through the side wall of bottom frame and is driving motor output shaft transmission connection, carrier bar is fixedly connected with carrier frame on it, the design that the bottom frame slides up and down in carrier frame inside of the utility model makes the distance between the two clamping frames can be flexibly adjusted according to paper length, so as to be able to compatible from small format to large format multiple specifications paper, avoid the problem that large-size paper cannot be installed or small-size paper is not fixedly firm due to size mismatch.

Description

Technical Field

[0001] This utility model relates to the field of papermaking technology, and in particular to a paper drying rack adapted to different sizes for papermaking. Background Technology

[0002] Papermaking, one of the Four Great Inventions of ancient China, remains a vital technology in modern industrial production. In both traditional and modern papermaking processes, drying the paper after it has formed is an indispensable and crucial step. Drying refers to the process of dehydrating and drying wet paper sheets by hanging or laying them flat under natural or artificially controlled conditions to ensure the paper's flatness, strength, and final quality. As a core step in the post-processing of papermaking, the quality of drying directly affects the physical properties and appearance of the finished paper. Especially in handmade papermaking or specialty paper production, the drying rack, as a key device for supporting and fixing the wet paper sheets, has a decisive influence on the efficiency and effectiveness of the entire drying process due to its structural design and performance.

[0003] In the papermaking industry, papers for different purposes often come in a variety of sizes, ranging from small sheets of handmade Xuan paper to large sheets of packaging paper, with significant size differences. However, existing paper drying racks are mostly fixed structures with non-adjustable frame dimensions and clamping spacing, making it difficult to accommodate the needs of different paper sizes. Specifically, during the paper drying process, existing drying racks, lacking flexible adjustment mechanisms, are inconvenient for effectively securing papers of different sizes. This results in small-sized papers becoming loose, wrinkled, or even falling off during drying, while large-sized papers cannot be hung properly because they exceed the rack's range, severely affecting the uniformity of drying and the yield of finished paper. Therefore, an innovative paper drying rack for papermaking is urgently needed to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a paper drying rack for papermaking that is adaptable to different sizes, solving the problem that existing paper drying racks are mostly fixed structures with non-adjustable frame size and clamping spacing, making it difficult to adapt to the fixing needs of different sized papers.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A paper drying rack for papermaking, adaptable to different sizes, includes a base frame. A support rod is rotatably connected to the inner side of the base frame, and a drive motor is fixedly connected to one side of the outer wall of the base frame by bolts. One end of the support rod passes through the side wall of the base frame and is drivenly connected to the output shaft of the drive motor. A support frame is fixedly connected to the support rod, and clamping frames are slidably connected to the upper and lower parts of the inner side of the support frame. Fixing plates are fixedly connected to both sides of the clamping frames. Each of the four fixing plates has a clamping plate on one side and a threaded rod on the other side. One end of the threaded rod passes through the fixing plate through a threaded groove, and the extension end of the threaded rod rotates between one side of the clamping plate via a rotating shaft. One side of each of the four clamping plates is slidably connected to the inner wall of two clamping frames.

[0006] Preferably, sliders are fixedly connected to both sides of the two clamping frames, and all four sliders are slidably connected to the side wall of the bearing frame through a sliding groove.

[0007] Preferably, a side plate is fixedly connected to one side of the bearing frame, and a connecting plate is fixedly connected to the top of both clamping frames. A support rod is provided on one side of each of the two connecting plates. Support grooves for use with the support rods are provided on both the connecting plate and the side plate. Several support grooves are provided on the side plate.

[0008] Preferably, a tension spring is fitted on one end of each of the two support rods, and one end of the support rod is elastically connected to one side of the connecting plate through the tension spring.

[0009] Preferably, a sliding block is fixedly connected to one side of all the clamping plates, and the sliding block is slidably connected to the inner wall of the clamping frame through a sliding groove. A buffer pad is fixedly connected to one side of all the clamping plates.

[0010] Preferably, one end of the support rod is rotatably connected to the inner wall of the bottom frame via a pivot, and the other end of the support rod passes through the side wall of the bottom frame via a bearing sleeve.

[0011] This utility model has the following beneficial effects: By incorporating a sliding, adjustable clamping frame and a clamping mechanism consisting of clamping plates and threaded rods, the technical problem of existing paper drying racks being unable to accommodate different paper sizes is effectively solved. Specifically, the design of the clamping frame sliding up and down inside the support frame allows the distance between the two clamping frames to be flexibly adjusted according to the paper length, thus enabling compatibility with various paper sizes from small to large formats. This avoids the problem of large-sized paper being unable to be installed or small-sized paper not being securely fixed due to size mismatch, significantly improving the equipment's versatility and applicability. By setting fixing plates on both sides of the clamping frame and mounting a spiral propulsion clamping structure consisting of threaded rods and clamping plates on them, the operator can achieve linear movement of the clamping plates by rotating the threaded rods, thereby precisely and stably clamping the four corners of the paper. This method is more reliable than traditional buckles or straps and can effectively prevent paper from slipping out of the paper. The paper drying process is designed to prevent loosening, wrinkling, and even detachment, thus improving stability and yield. Furthermore, the clamping force can be finely adjusted by the number of turns, preventing damage to the wet paper edges from excessive force or failure due to insufficient force, further ensuring paper integrity and surface quality. Additionally, the transmission connection between the support rod and the drive motor allows the entire frame to rotate slowly, ensuring even airflow and heating on both sides of the paper during drying, accelerating drying and reducing curling caused by excessively rapid drying on one side, thus improving drying efficiency and uniformity. The overall structure relies on the base frame for stable support, with clear connections between components and coordinated movements. Adjustment and operation are simple, requiring no complex tools for size switching and paper clamping, reducing operator workload and improving production continuity and efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a side view of the structure of this utility model; Figure 3 This is a schematic diagram of the side plate structure of this utility model; Figure 4 This is a schematic diagram of the clamping frame structure of this utility model; Figure 5 This is a top view of the structure of this utility model.

[0014] In the diagram: 1. Base frame; 2. Support rod; 3. Drive motor; 4. Support frame; 5. Clamping frame; 6. Slider; 7. Slide groove; 8. Fixing plate; 9. Clamping plate; 10. Buffer pad; 11. Threaded rod; 12. Side plate; 13. Connecting plate; 14. Support rod; 15. Tension spring; 16. Support groove; 17. Sliding block; 18. Slide groove. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] Reference Figure 1-5 A paper drying rack for papermaking, adaptable to different sizes, includes a base frame 1. A support rod 2 is rotatably connected to the inner side of the base frame 1, and a drive motor 3 is fixedly connected to one side of the outer wall of the base frame 1 by bolts. One end of the support rod 2 passes through the side wall of the base frame 1 and is connected to the output shaft of the drive motor 3 for transmission. A support frame 4 is fixedly connected to the support rod 2, and a clamping frame 5 is slidably connected to the upper and lower parts of the inner side of the support frame 4. Fixing plates 8 are fixedly connected to both sides of the clamping frame 5. A clamping plate 9 is provided on one side of each of the four fixing plates 8, and a threaded rod 11 is provided on the other side of each of the four fixing plates 8. One end of the threaded rod 11 passes through the fixing plate 8 through a threaded groove, and the extension end of the threaded rod 11 rotates between one side of the clamping plate 9 via a rotating shaft. One side of each of the four clamping plates 9 is slidably connected to the inner wall of two clamping frames 5.

[0017] When using a paper drying rack adapted to different sizes for papermaking, first place the base frame 1 on a stable drying area to ensure its overall structure is stable and reliable. Then, according to the specific size of the paper to be dried, adjust the relative position between the two clamping frames 5 inside the support frame 4. Manually slide the upper and lower clamping frames 5 in the sliding grooves 7 inside the support frame 4 to move horizontally to adapt to the length dimension of the paper. After the two clamping frames 5 are adjusted to the appropriate distance, they can be fixed to the support frame 4 by additional limit pins or fasteners to prevent displacement in subsequent operations. Then, lay the wet paper to be dried flat on top of the support frame 4, so that its four corners correspond to the positions of the four clamping plates 9 respectively, and place each corner of the paper on the inner surface of the corresponding clamping plate 9 in sequence. Next, the operator rotates the four threaded rods 11 located on the outside of the fixed plate 8. Since the threaded rods 11 form a threaded engagement with the fixed plate 8 through the threaded groove, and their extension ends are rotated... The shaft is rotatably connected to the clamping plate 9. Therefore, during rotation, the threaded rod 11 will push the clamping plate 9 to move inward along the sliding direction of the inner wall of the clamping frame 5, thereby clamping and fixing the corners of the paper. The clamping force can be adjusted by controlling the tightening degree to avoid damage to the paper edges due to excessive tightness or instability due to excessive looseness. After all four corners are firmly clamped, the drive motor 3 fixed on one side of the outer wall of the bottom frame 1 is started. Its output shaft drives the bearing rod 2 to rotate through the transmission connection. The bearing rod 2 further drives the bearing frame 4 fixed on it to rotate as a whole, so that the paper can be dried alternately on both sides during slow rotation, improving the uniformity of drying. During the entire drying process, the paper always remains flat and taut, effectively preventing sagging, wrinkling or falling off due to its own weight or wind. After the paper is completely dry, the threaded rod 11 is loosened in the opposite direction to release the clamping plate 9, and the finished paper is removed. Then the clamping frame 5 can be readjusted to accommodate the next batch of paper of different sizes for the next round of drying.

[0018] Furthermore, sliders 6 are fixedly connected to both sides of the two clamping frames 5, and all four sliders 6 are slidably connected to the side wall of the bearing frame 4 through the sliding groove 7, providing stable guidance and support for the clamping frames 5, limiting their offset and swaying during horizontal movement, achieving the effect of making the sliding of the clamping frames 5 more stable and smooth, and the positioning more accurate. At the same time, it enhances the connection rigidity and operational stability of the overall structure, avoiding the problem of uneven force on the clamping plate 9 or uneven paper tension caused by the skewness of the clamping frames 5.

[0019] Furthermore, a side plate 12 is fixedly connected to one side of the bearing frame 4, and a connecting plate 13 is fixedly connected to the top of each of the two clamping frames 5. A support rod 14 is provided on one side of each of the two connecting plates 13. Support grooves 16 for use with the support rods 14 are provided on both the connecting plate 13 and the side plate 12. Several support grooves 16 are provided on the side plate 12. When the clamping frame 5 is adjusted to the required position, the support rod 14 is pulled out from the connecting plate 13 and inserted into the corresponding support groove 16. In the working process, the clamping frame 5 is quickly positioned and mechanically limited, achieving the effect of firmly locking the position of the clamping frame 5 without additional tools. This improves the fixation reliability after size adjustment and prevents displacement due to vibration or wind during drying. At the same time, the design of multiple support grooves 16 supports stepless or graded positioning, enhancing the equipment's adaptability to different paper sizes.

[0020] Furthermore, a tension spring 15 is fitted on one end of each of the two support rods 14, and one end of the support rod 14 is elastically connected to one side of the connecting plate 13 through the tension spring 15, ensuring that the support rod 14 is always tightly embedded in the support groove 16, preventing the support rod 14 from accidentally coming out due to equipment rotation or external vibration, thus achieving the effect of enhancing the stability and safety of the limiting structure. At the same time, when it is necessary to readjust the position of the clamping frame 5, it can be easily pulled out by simply pulling the support rod 14 outward to overcome the spring tension, thus achieving a balance between the convenience and reliability of the limiting operation.

[0021] Furthermore, a sliding block 17 is fixedly connected to one side of each clamping plate 9, and the sliding block 17 is slidably connected to the inner wall of the clamping frame 5 through a sliding groove 18. A buffer pad 10 is fixedly connected to one side of each clamping plate 9, providing guidance and support for the linear movement of the clamping plate 9. This achieves the effect of making the movement of the clamping plate 9 more stable, reducing jamming or skew, improving the smoothness of the clamping action and the repeatability of the positioning accuracy. At the same time, it disperses the stress concentration of the clamping plate 9 when it is under force, extends the service life of the sliding structure, and ensures the stability and consistency of clamping paper of different sizes. When the clamping plate 9 clamps the edge of the wet paper, the buffer pad 10 first contacts the paper and undergoes elastic deformation, playing a soft buffering and anti-slip role in the working process. This achieves the effect of preventing the edge of the wet paper from being damaged, wrinkled or perforated due to the hard squeezing of the clamping plate 9. At the same time, it increases the friction of the clamping interface, preventing the paper from sliding or falling off during the rotation and drying process. This further enhances the protection of fragile wet paper and the reliability of clamping, and is especially suitable for drying scenarios of low-strength handmade paper or special paper.

[0022] Furthermore, one end of the bearing rod 2 is rotatably connected to the inner wall of the bottom frame 1 via a rotating shaft, and the other end of the bearing rod 2 passes through the side wall of the bottom frame 1 via a bearing sleeve.

[0023] In summary: First, place the base frame 1 stably on the ground or supporting structure of the drying area, ensuring its overall posture is level and stable. One end of the support rod 2 is rotatably connected to the inner wall of the base frame 1 via a pivot, and the other end extends to the outside through the side wall of the base frame 1 via a bearing sleeve. This structural design allows the support rod 2 to maintain good coaxiality and stability during rotation, reducing vibration problems caused by eccentricity or swaying. The drive motor 3 is fixedly connected to one side of the outer wall of the base frame 1 by bolts, and its output shaft is connected to the extension end of the support rod 2. After starting, it can drive the entire rotating system to operate smoothly. The support frame 4 is fixedly connected to the support rod 2 and rotates synchronously with it, used to support the paper to be dried and its clips. The holding mechanism is designed to accommodate different paper sizes. When different sizes of paper need to be accommodated, the operator manually pushes the two clamping frames 5 located at the upper and lower parts of the inner side of the support frame 4, allowing them to slide horizontally to adjust the spacing between them, thus adapting to changes in the length of the paper. During this process, the sliders 6 fixed on both sides of the clamping frames 5 slide synchronously within the grooves 7 provided on the side wall of the support frame 4. The cooperation between the sliders 6 and the grooves 7 provides precise guidance and lateral support for the clamping frames 5, effectively preventing them from tilting, jamming, or derailing during movement, ensuring smooth adjustment and positioning accuracy. After the clamping frames 5 are adjusted to the appropriate position, the support rod 14 on the connecting plate 13 fixed at the top is aligned with the side... The corresponding support slots 16 on the plate 12 are inserted to achieve mechanical limit locking. Since multiple support slots 16 are provided on the side plate 12, different positions can be selected for fixing according to actual needs, supporting multi-level or near stepless adjustment, which improves the equipment's compatibility with various paper specifications. At the same time, a tension spring 15 is sleeved on one end of the support rod 14, and the other end of the spring is connected to the connecting plate 13, so that the support rod 14 is always subjected to a pull force after being inserted into the support slot 16, ensuring that it will not accidentally come out due to vibration or wind during equipment operation, thus enhancing the safety and reliability of the limit structure. After completing the position setting of the clamping frame 5, the wet paper is laid flat on top of the bearing frame 4, and its four corners are respectively The positions of the four clamping plates 9 correspond to the positions of the clamping plates 9. The clamping plates 9 are slidably connected by sliding blocks 17 embedded in the sliding grooves 18 on the inner wall of the clamping frame 5. This structure provides a stable guide for the reciprocating motion of the clamping plates 9, avoiding skewing or jamming during clamping, and improving the repeatability and consistency of the action. The operator rotates the threaded rod 11 located on the outside of the fixed plate 8. The threaded rod 11 generates axial thrust by cooperating with the threaded groove on the fixed plate 8, and transmits it to one side of the clamping plate 9 through the rotating shaft, pushing the clamping plate 9 to move inward, thereby clamping the corner of the paper. By controlling the screwing depth of the threaded rod 11, the clamping force can be precisely adjusted to prevent damage to the edge of the wet paper due to excessive tightness or insecure clamping due to excessive looseness.In addition, a buffer pad 10 is fixedly connected to the inner side of the clamping plate 9. The buffer pad 10 is made of flexible material and plays a soft contact role during the clamping process. It can effectively protect the edges of the wet paper from being damaged, wrinkled or perforated by hard squeezing, and increase friction to prevent the paper from slipping or falling off during subsequent rotation and drying. After all four corners are firmly clamped, the drive motor 3 is started. Its power is transmitted to the support rod 2 through the output shaft, which drives the support frame 4 and the whole clamping system to rotate slowly, so that the paper is alternately exposed to the air or heat source environment on both sides, so as to achieve uniform drying and avoid curling and deformation caused by rapid water loss on one side. During the entire drying process, the paper always remains taut and flat. Thanks to the stability of the clamping system and the synergistic effect of the rotation mechanism, the occurrence of wrinkles, sagging and uneven drying problems is significantly reduced. After the paper is completely dry, the threaded rod 11 is unscrewed in the opposite direction to release the clamping plate 9 and remove the finished paper. Then the position of the clamping frame 5 can be readjusted and the support rod 14 can be replaced and inserted into different support slots 16 to prepare for the drying operation of the next batch of paper of different sizes. The device provides basic support through the base frame 1. The cooperation between the bearing rod 2, bearing sleeve, and rotating shaft ensures stable rotation. The drive motor 3 enables automated double-sided drying. The bearing frame 4, as the core bearing platform, integrates various functional components. The clamping frame 5, together with the slider 6 and sliding groove 7, enables lateral adjustment and improves sliding stability. The support rod 14, support groove 16, and tension spring 15 together form a quick locking and anti-detachment mechanism, improving adjustment efficiency and operational safety. The sliding block 17 and sliding groove 18 ensure smooth movement of the clamping plate 9, and the buffer pad 10 effectively protects the surface quality of the wet paper. The overall structure achieves efficient, stable, safe clamping and uniform drying of paper of different sizes, solving the technical problems of traditional paper drying racks such as inability to adapt to multi-specification production, insecure fixing, cumbersome operation, and easy paper damage. It significantly improves the versatility, automation, and product quality consistency of drying operations. It is especially suitable for small-batch, high-requirement production scenarios such as handmade paper, art paper, and specialty paper that require frequent changes in paper types, and has good practical value and prospects for widespread application.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A paper drying rack for papermaking, adaptable to different sizes, comprising a base frame (1), characterized in that, The inner side of the bottom frame (1) is rotatably connected to a bearing rod (2), and the outer wall of the bottom frame (1) is fixedly connected to a drive motor (3) by bolts. One end of the bearing rod (2) passes through the side wall of the bottom frame (1) and is connected to the output shaft of the drive motor (3). A bearing frame (4) is fixedly connected to the bearing rod (2), and a clamping frame (5) is slidably connected to the upper and lower parts of the inner side of the bearing frame (4). Fixing plates (8) are fixedly connected to both sides of the clamping frame (5). A clamping plate (9) is provided on one side of each of the four fixing plates (8), and a threaded rod (11) is provided on the other side of each of the four fixing plates (8). One end of the threaded rod (11) passes through the fixing plate (8) through a threaded groove, and the extension end of the threaded rod (11) rotates between the clamping plate (9) and one side of each of the four clamping plates (9). The inner walls of the two clamping frames (5) are slidably connected to each other.

2. The paper drying rack for papermaking adapted to different sizes according to claim 1, characterized in that, Both sides of the two clamping frames (5) are fixedly connected with sliders (6), and all four sliders (6) are slidably connected to the side wall of the bearing frame (4) through the sliding groove (7).

3. A paper drying rack for papermaking adapted to different sizes according to claim 1, characterized in that, A side plate (12) is fixedly connected to one side of the bearing frame (4), and a connecting plate (13) is fixedly connected to the top of both clamping frames (5). A support rod (14) is provided on one side of both connecting plates (13). A support groove (16) for use with the support rod (14) is provided on both the connecting plate (13) and the side plate (12). Several support grooves (16) are provided on the side plate (12).

4. A paper drying rack for papermaking adapted to different sizes according to claim 3, characterized in that, Each of the two support rods (14) is fitted with a tension spring (15) at one end, and one end of the support rod (14) is elastically connected to one side of the connecting plate (13) through the tension spring (15).

5. A paper drying rack for papermaking adapted to different sizes according to claim 1, characterized in that, All of the clamping plates (9) are fixedly connected to one side of a sliding block (17), and the sliding block (17) is slidably connected to the inner wall of the clamping frame (5) through a sliding groove (18). All of the clamping plates (9) are fixedly connected to one side of a buffer pad (10).

6. A paper drying rack for papermaking adapted to different sizes according to claim 1, characterized in that, One end of the bearing rod (2) is rotatably connected to the inner wall of the bottom frame (1) through a rotating shaft, and the other end of the bearing rod (2) passes through the side wall of the bottom frame (1) through a bearing sleeve.

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