Paper pressing device for paper receiving machine

Abstract

A paper pressing device for a paper receiving machine belongs to the technical field of paper pressing of paper receiving machines and comprises two bases with holes, U-shaped frames are fixedly mounted on the upper surfaces of the bases with the holes, sliding grooves are oppositely formed in the inner side walls of the U-shaped frames, sliding blocks are slidably mounted in the sliding grooves in the front sides, and a connecting shaft is rotatably mounted between the two sliding blocks. Two H-shaped carrying frames are symmetrically and detachably installed on the outer surface of the connecting shaft, a rubber pressing roller is rotatably installed on the H-shaped carrying frame at the upper end, a metal pressing roller is rotatably installed in the H-shaped carrying frame at the lower end, an adjusting motor is fixedly installed on the left surface of the left sliding block, and the output end of the adjusting motor is fixedly connected with the left end of the connecting shaft; according to the paper conveying device, the pressure applying condition of the pressing roller in the paper conveying process can be flexibly adjusted, optimization and convenient switching of the function of the pressing roller can be achieved, and the defects of a traditional device are overcome.

Description

Technical Field

[0001] The utility model belongs to the technical field of paper pressing of a paper splicing machine, and particularly relates to a paper pressing device for a paper splicing machine. Background Art

[0002] In the operation process of a paper splicing machine, the conveyance of paper must be maintained at a constant speed and a stable state. To achieve this goal, the paper pressing device plays a crucial role. By applying an appropriate pressure to the paper, it effectively curbs the fluttering and offset of the paper on the conveyance path, thereby ensuring the stability and continuity of paper conveyance.

[0003] In view of the differences in paper thickness, the paper pressing device of the paper splicing machine needs to be flexibly adjusted, select a pressure roller material matching the paper characteristics, and accurately control the applied pressure. Specifically, for thin papers that are soft in texture and easily affected by external forces, the paper pressing device should select a pressure roller material with a soft surface and a moderate friction coefficient, such as a rubber pressure roller. With its good elasticity, such a pressure roller can closely fit the paper surface when applying pressure, not only ensuring sufficient pressure to stabilize paper conveyance but also avoiding paper deformation or damage caused by excessive pressure.

[0004] On the contrary, for papers with a larger thickness, higher stiffness and strength, the paper pressing device needs to select a pressure roller material with a higher hardness, such as a metal pressure roller. With its excellent strength and stability, the metal pressure roller can withstand greater pressure without deformation, providing a solid support and a stable conveyance environment for thick papers, ensuring the close fitting and smooth conveyance of the papers.

[0005] It should be noted that when the traditional paper pressing device processes papers with different thicknesses, it often requires cumbersome disassembly and replacement of the pressure roller, which not only reduces the processing efficiency but also increases the operation difficulty. Therefore, we have specially designed a new type of paper pressing device for a paper splicing machine to solve this technical problem and achieve a more efficient and convenient paper conveyance and processing process. Content of the Utility Model

[0006] In view of the problem that the traditional paper pressing device in the prior art requires cumbersome disassembly and replacement of the pressing roller when dealing with papers of different thicknesses, which not only reduces the processing efficiency but also increases the operation difficulty, the present utility model provides a paper pressing device dedicated for a paper receiving machine. This device integrates a lifting and fine-tuning mechanism. By precisely controlling the vertical movement of the connecting shaft, it can flexibly adjust the pressure exerted on the pressing roller (including rubber pressing roller and metal pressing roller) during the paper conveying process. In addition, this device is also provided with an adjusting motor connected to the connecting shaft, which can quickly drive the connecting shaft to rotate 180°, realizing seamless switching between the metal pressing roller and the rubber pressing roller, greatly simplifying the pressing roller replacement process and improving the operation convenience. This design effectively solves the complex problem that the traditional paper pressing device needs to be frequently disassembled and replaced when dealing with papers of different thicknesses, not only significantly improving the processing efficiency but also reducing the operation difficulty. The specific technical solution is as follows:

[0007] A paper pressing device for a paper receiving machine, comprising two perforated bases. The upper surfaces of the perforated bases are fixedly installed with U-shaped frames. The inner side walls of the U-shaped frames are respectively provided with sliding grooves. Sliders are slidably installed in the front side sliding grooves. A connecting shaft is rotatably installed between the two sliders. Two H-shaped carriers are symmetrically and detachably installed on the outer surface of the connecting shaft. A rubber pressing roller is rotatably installed on the upper H-shaped carrier, and a metal pressing roller is rotatably installed in the lower H-shaped carrier. A regulating motor is fixedly installed on the left surface of the left slider, and the output end of the regulating motor is fixedly connected to the left end of the connecting shaft. A lifting and fine-tuning mechanism for driving the corresponding slider to move up and down is installed in each U-shaped frame.

[0008] In the above technical solution, each of the lifting and fine-tuning mechanisms includes a fine-tuning lead screw motor. The fine-tuning lead screw motors are fixedly installed on the upper surfaces of the corresponding U-shaped frames, and the output ends of the fine-tuning lead screw motors are fixedly installed with lead screws. The lead screws are rotatably installed between the U-shaped frames and the perforated bases. Lead screw sliders are sleeved on the outer surfaces of the lead screws. The lead screw sliders slide in the rear side sliding grooves, and the front surfaces of the lead screw sliders are fixedly connected to the rear surfaces of the corresponding sliders;

[0009] In the above technical solution, slots are symmetrically opened on the upper and lower surfaces of the connecting shaft, left and right. The H-shaped carriers are inserted and installed between the corresponding two slots, and bolt-nut assemblies are installed between the left and right ends of the H-shaped carriers and the connecting shaft;

[0010] In the above technical solution, two flat-bottom grooves are symmetrically opened on the front and rear surfaces of the connecting shaft. Installation holes communicating with the slots are opened in the flat-bottom grooves. Through holes are penetrated and opened at the left and right ends of the H-shaped carriers. The bolt-nut assemblies are installed between the corresponding through holes and the installation holes;

[0011] In the above technical solution, the inner surface of the bolt-nut assembly fits with the inner surface of the flat-bottom groove.

[0012] A paper pressing device for a paper splicing machine according to the present utility model has the following beneficial effects compared with the prior art:

[0013] The present utility model integrates a lifting and fine-tuning mechanism, which can precisely control the vertical movement of the connecting shaft, thereby flexibly adjusting the pressing condition of the pressing roller (including rubber pressing roller and metal pressing roller) during paper transportation. At the same time, an adjusting motor connected to the connecting shaft is provided, which can quickly drive the connecting shaft to rotate 180°, realizing seamless switching between the metal pressing roller and the rubber pressing roller, simplifying the pressing roller replacement process, and improving the operation convenience. This design effectively solves the complex problem of frequently disassembling and replacing the pressing roller of the traditional paper pressing device when processing papers of different thicknesses, significantly improving the processing efficiency and reducing the operation difficulty. Through the precise control of the connecting shaft by the lifting and fine-tuning mechanism and the rotational drive of the connecting shaft by the adjusting motor, the optimization and convenient switching of the pressing roller function are realized, and the deficiencies of the traditional device are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a three-dimensional structural schematic diagram of the present utility model.

[0015] Figure 2 is a front view structural schematic diagram of the present utility model.

[0016] Figure 3 is a sectional structural schematic diagram of the present utility model.

[0017] Figure 4 is an exploded structural schematic diagram of the present utility model.

[0018] Figure 5 is a structural schematic diagram of the present utility model after being connected to the paper splicing machine mounting frame.

[0019] Figures 1-5 In the figure, wherein: 1. perforated base; 2. U-shaped frame; 21. chute; 22. slider; 3. connecting shaft; 31. slot; 32. flat-bottom groove; 33. mounting hole; 34. bolt-nut assembly; 4. adjusting motor; 5. H-shaped carrier; 51. rubber pressing roller; 52. metal pressing roller; 53. through hole; 6. lifting and fine-tuning mechanism; 61. fine-tuning lead screw motor; 62. lead screw; 63. lead screw slide; 7. paper splicing machine mounting frame; 8. driven conveying roller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] The front, rear, left, right, upper and lower in this embodiment are described with Figure 1 as the reference plane. Please refer to Figures 1-5 The present invention provides a technical solution:

[0022] A paper pressing device for a paper splicing machine, including two perforated bases 1. U-shaped frames 2 are fixedly installed on the upper surfaces of the perforated bases 1. Sliding grooves 21 are symmetrically formed on the inner side walls of the U-shaped frames 2. Sliders 22 are slidably installed in the front sliding grooves 21. A connecting shaft 3 is rotatably installed between the two sliders 22. Two H-shaped carriers 5 are symmetrically and detachably installed on the outer surface of the connecting shaft 3. A rubber pressing roller 51 is rotatably installed on the upper H-shaped carrier 5, and a metal pressing roller 52 is rotatably installed in the lower H-shaped carrier 5. A regulating motor 4 is fixedly installed on the left surface of the left slider 22, and the output end of the regulating motor 4 is fixedly connected to the left end of the connecting shaft 3. Lifting fine-tuning mechanisms 6 for driving the corresponding sliders 22 to move up and down are installed in the U-shaped frames 2;

[0023] It should be noted that the lifting fine-tuning mechanisms 6 each include a fine-tuning lead screw motor 61. The fine-tuning lead screw motor 61 is fixedly installed on the upper surface of the corresponding U-shaped frame 2, and lead screws 62 are fixedly installed at the output ends of the fine-tuning lead screw motors 61. The lead screws 62 are rotatably installed between the U-shaped frame 2 and the perforated base 1, and lead screw slides 63 are sleeved on the outer surfaces of the lead screws 62. The lead screw slides 63 slide in the rear sliding grooves 21, and the front surface of the lead screw slide 63 is fixedly connected to the rear surface of the corresponding slider 22.

[0024] In practical applications, refer to Figure 3 and Figure 5, the perforated base 1 is installed on the paper receiving machine mounting frame 7 in a bolt - fixed manner. During use, according to the thickness of the paper to be conveyed by the paper receiving machine, a suitable pressure roller is selected for operation. When selecting the pressure roller, the connecting shaft 3 is driven by the adjusting motor 4 to flip, so that the rubber pressure roller 51 or the metal pressure roller 52 is parallel and directly above the driven conveying roller 8 inside the paper receiving machine mounting frame 7. Subsequently, the fine - tuning lead screw motor 61 rotates synchronously, and through the cooperation of the corresponding lead screw 62 and the lead screw slide 63, the two sliders 22 are driven to move up and down synchronously, thereby adjusting the distance between the rubber pressure roller 51 or the metal pressure roller 52 and the driven conveying roller 8, and further adjusting the pressure of the rubber pressure roller 51 or the metal pressure roller 52 on the paper to achieve the best paper - pressing effect. Compared with the prior art, this device can flexibly adjust the pressure application situation of the pressure roller during paper conveying, and can achieve convenient switching between the rubber pressure roller 51 and the metal pressure roller 52, improving work efficiency.

[0025] In addition, as shown in Figure 1 and Figure 4 , the upper and lower surfaces of the connecting shaft 3 are symmetrically provided with slots 31 from left to right. The H - shaped carrier 5 is inserted and installed between the corresponding two slots 31, and bolt - nut assemblies 34 are installed between the left and right ends of the H - shaped carrier 5 and the connecting shaft 3. When the pressure roller wears to a certain extent and cannot be used, the bolt - nut assemblies 34 can be removed, and after separating the H - shaped carrier 5 from the connecting shaft 3, the corresponding pressure roller can be replaced.

[0026] In addition, as shown in Figure 4 , two flat - bottomed grooves 32 are symmetrically provided on the front and rear surfaces of the connecting shaft 3. Mounting holes 33 communicating with the slots 31 are provided in the flat - bottomed grooves 32. Through - holes 53 are penetrated through the left and right ends of the H - shaped carrier 5. The bolt - nut assemblies 34 are installed between the corresponding through - holes 53 and the mounting holes 33. The inner surface of the bolt - nut assembly 34 fits with the inner surface of the flat - bottomed groove 32. After the H - shaped carrier 5 and the connecting shaft 3 are assembled through the slots 31, by passing the bolt - nut assemblies 34 through the corresponding through - holes 53 and the mounting holes 33 and tightening them, the fixed connection between the H - shaped carrier 5 and the connecting shaft 3 is realized.

Claims

1. A paper pressing device for a paper splicing machine, comprising two perforated bases (1), characterized in that, The upper surfaces of the perforated bases (1) are fixedly installed with U-shaped frames (2). The inner side walls of the U-shaped frames (2) are respectively provided with sliding grooves (21) in opposite directions. Sliders (22) are slidably installed in the front sliding grooves (21). A connecting shaft (3) is rotatably installed between the two sliders (22). Two H-shaped carriers (5) are symmetrically and detachably installed on the outer surface of the connecting shaft (3). A rubber pressing roller (51) is rotatably installed on the upper H-shaped carrier (5), and a metal pressing roller (52) is rotatably installed in the lower H-shaped carrier (5). A regulating motor (4) is fixedly installed on the left surface of the left slider (22). The output end of the regulating motor (4) is fixedly connected to the left end of the connecting shaft (3). A lifting fine-tuning mechanism (6) for driving the corresponding slider (22) to move up and down is installed in each U-shaped frame (2).

2. The paper pressing device for a paper splicing machine according to claim 1, characterized in that, Each of the lifting fine-tuning mechanisms (6) includes a fine-tuning lead screw motor (61). The fine-tuning lead screw motor (61) is fixedly installed on the upper surface of the corresponding U-shaped frame (2). The output ends of the fine-tuning lead screw motors (61) are respectively fixedly installed with lead screws (62). The lead screws (62) are rotatably installed between the U-shaped frame (2) and the perforated base (1). Lead screw sliders (63) are sleeved on the outer surfaces of the lead screws (62). The lead screw sliders (63) slide in the rear sliding grooves (21), and the front surface of the lead screw slider (63) is fixedly connected to the rear surface of the corresponding slider (22).

3. The paper pressing device for a paper splicing machine according to claim 2, characterized in that, Insertion slots (31) are symmetrically opened on the upper and lower surfaces of the connecting shaft (3) in the left-right direction. The H-shaped carrier (5) is inserted and installed between the corresponding two insertion slots (31). Bolt-nut assemblies (34) are installed between the left and right ends of the H-shaped carrier (5) and the connecting shaft (3).

4. A paper pressing device for a paper splicing machine according to claim 3, wherein, Two flat-bottomed grooves (32) are symmetrically opened on the front and rear surfaces of the connecting shaft (3). Mounting holes (33) communicating with the insertion slots (31) are opened in the flat-bottomed grooves (32). Through holes (53) are respectively penetrated through the left and right ends of the H-shaped carrier (5). The bolt-nut assemblies (34) are installed between the corresponding through holes (53) and the mounting holes (33).

5. The paper pressing device for a paper splicing machine according to claim 4, characterized in that, The inner surface of the bolt-nut assembly (34) is in contact with the inner surface of the flat-bottomed groove (32).

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