A carpet roller device

Abstract

The utility model relates to carpet roll press technical field, especially carpet roll press device, including conveyer frame and the roll press frame of setting in conveyer frame export end, the vertical end plate between both sides of roll press frame rotatably connects with the down pressure roller and liftable upper pressure roller, and the upper pressure roller and down pressure roller are arranged in alignment up and down, and the conveyer frame rotatably connects with several groups of guide rollers in, and the roll press frame upper end is installed with several rotatable supporting rollers, and the supporting roller sets up between conveyer frame and down pressure roller, still includes two groups of limit roller, and two groups of limit roller adjustably install in the vertical end plate inside of conveyer frame, and along the carpet width direction symmetrical arrangement, and the upper pressure roller adopts the variable cross section structure of double -end thickening, middle part waist -in, the bending deformation ability of strengthening pressure roller is ensured that the pressure height of the width direction is uniform, guarantees the compaction degree uniformity and quality stability of product.

Description

Technical Field

[0001] This utility model relates to the field of carpet rolling technology, and in particular to a carpet rolling device. Background Technology

[0002] In the carpet production process, in order to eliminate the stress of the pile fibers, enhance the flatness and luster of the carpet surface, and ensure that the carpet reaches the predetermined thickness specifications, roller pressing is a crucial finishing process. The performance of the roller pressing equipment directly determines the final quality and appearance of the carpet product.

[0003] Existing carpet rolling devices typically include a frame, a conveying mechanism, and a rolling mechanism mounted on the frame. The conveying mechanism, consisting of a conveyor frame and several guide rollers inside, is responsible for smoothly transporting the carpet to the rolling station. The rolling mechanism mainly consists of a pair of pressure rollers arranged vertically opposite each other. The lower pressure roller is the drive roller, driven by a motor through a sprocket and chain mechanism. The upper pressure roller is designed to be height-adjustable, and its gap pressure with the lower pressure roller is usually adjusted by a cylinder-driven slider mechanism, thereby applying the required rolling force to the passing carpet. However, these existing rolling devices have a significant technical drawback in practical applications: when subjected to high-load rolling operations for extended periods, the pressure rollers are prone to slight bending due to insufficient structural strength and deformation resistance. Bending deformation causes the pressure distribution of the roller along its axial length to become uneven. Specifically, the pressure in the middle section of the roller may decrease due to bending, while the pressure near the two end support points may increase abnormally. This uneven pressure phenomenon has a series of negative impacts on carpet product quality: First, it leads to inconsistent compaction in different areas along the width of the carpet. Some areas may be over-pressed, appearing too thin and with abnormal luster, while other areas may be under-pressed, appearing fluffy and lacking a finishing effect, seriously affecting the overall uniformity and aesthetics of the product. Second, long-term operation under uneven pressure will accelerate the abnormal wear of the roller itself and its drive components such as bearings and cylinders, shortening the service life of the equipment and increasing maintenance costs.

[0004] Therefore, in response to the problem that the pressure rollers of the existing roller pressing devices are prone to slight bending deformation, resulting in inconsistent compaction in different areas along the width of the carpet, a carpet roller pressing device can be designed to fundamentally improve the structural rigidity of the pressure rollers, ensuring that they can maintain excellent straightness under heavy-load working conditions, thereby providing uniform and stable roller pressure to improve the finishing quality and production efficiency of carpet products. Utility Model Content

[0005] To overcome the problem that the pressure rollers of existing roller pressing devices are prone to slight bending deformation, resulting in inconsistent compaction in different areas along the width of the carpet.

[0006] The technical solution of this utility model is as follows: a carpet roller pressing device, including a conveyor frame and a roller pressing frame set at the outlet end of the conveyor frame. A lower pressing roller and a liftable upper pressing roller are rotatably connected between the vertical end plates on both sides of the roller pressing frame. The upper pressing roller and the lower pressing roller are arranged vertically aligned. Several sets of guide rollers are rotatably connected inside the conveyor frame. Several rotatable support rollers are installed at the upper end of the roller pressing frame. The support rollers are set between the conveyor frame and the lower pressing roller. It also includes two sets of limiting rollers. The two sets of limiting rollers are adjustablely installed inside the vertical end plates of the conveyor frame and are symmetrically arranged along the width direction of the carpet. The upper pressing roller adopts a variable cross-section structure with thickened ends and tapered waist in the middle.

[0007] Preferably, two sets of limiting rollers symmetrically installed on both sides of the conveyor frame limit the width of the carpet to prevent deviation. By adjusting the limiting width with the limiting rollers, the carpet to be rolled is laid flat on the conveyor frame and guided by several sets of guide rollers to be smoothly conveyed to the outlet end. After the carpet is sent out of the conveyor frame, it is supported by several rotatable support rollers installed at the upper end of the roll forming frame and smoothly transitions to the rolling area. The height of the upper pressure roller is adjusted to form a suitable rolling gap with the lower pressure roller. The carpet is fed into the rolling gap between the upper and lower pressure rollers arranged vertically and vertically. Under the rotation and pressure of the double rollers, it is compacted and flattened. The carpet after rolling is output from the other end of the device for collection or to enter the next process.

[0008] Preferably, telescopic cylinders are fixedly installed on the upper ends of the vertical end plates on both sides of the roller press frame. The telescopic ends of each telescopic cylinder pass downward through the top of the vertical end plate and are fixedly connected to the lifting slider. The lifting slider is slidably installed on the inner side of the vertical end plate, and an upper pressure roller is rotatably connected between the two opposing lifting sliders.

[0009] Preferably, a motor is fixedly connected to the upper end of the roller press frame, a driven sprocket is mounted on the journal of the lower press roller on the same side of the motor, and a driving sprocket is mounted on the output shaft of the motor. The driving sprocket and the driven sprocket are connected by chain meshing.

[0010] Preferably, two sets of threaded posts are inserted into the vertical end plates on both sides of the conveyor frame. The ends of the threaded posts are fixedly connected to the back plate. The back plate is arranged parallel to the vertical end plates of the conveyor frame. Several sets of roller frames are installed inside the back plate. The limiting roller is rotatably connected inside the roller frame. Two sets of adjusting nuts are also threaded onto each set of threaded posts.

[0011] Preferably, a guide rail is fixedly installed on the upper part of the base plate of the conveyor frame, and a matching guide slider is slidably connected on the guide rail, with the guide slider being fixedly connected to the back plate.

[0012] Preferably, a top plate is fixedly connected between the vertical end plates on both sides of the roller press frame. Several sets of equidistantly distributed lifting cylinders are fixedly connected to the upper end of the top plate. The telescopic end of each lifting cylinder passes downward through the top plate and is fixedly connected to the U-shaped frame. A roller is rotatably connected inside the U-shaped frame.

[0013] Preferably, the upper pressure roller is rotatably connected to an air inlet pipe, which is connected to an external air supply device. The upper pressure roller is covered with a skin, and several equally spaced partitions are fixedly installed inside it. A partition cavity is formed between adjacent partitions. A pressure regulating cavity corresponding to each partition cavity is provided on the inner side of the skin. Each partition cavity has an air inlet that communicates with the pressure regulating cavity. An air outlet corresponding to each partition cavity is provided on the air inlet pipe.

[0014] The beneficial effects of this utility model are: 1. By designing the upper pressure roller with a variable cross-section structure that is thickened at both ends and tapered in the middle, the roller's resistance to bending deformation is greatly enhanced. This ensures that the roller pressure height is uniform and consistent along the entire width of the carpet, thereby guaranteeing the uniformity of product compaction and quality stability. This variable cross-section structure is a precisely calculated equal-strength design. When the pressure roller is working under load, the bending moment is greatest in the middle, while the ends mainly bear shear stress. Traditional equal-diameter pressure rollers have insufficient bending section modulus in the middle, making them prone to deflection. By appropriately "tapering" in the middle, the strength is not weakened, but rather the material is used more rationally. Ground distribution: The thickened ends significantly enhance the rigidity and strength of the support journal, ensuring the stability of the connection with the lifting slider and reducing stress concentration and inelastic deformation at the support point. The tapered middle section optimizes the overall weight. While ensuring sufficient bending section modulus in the middle, it avoids material redundancy, making the overall weight distribution and mechanical properties of the pressure roller more compatible with the actual stress conditions. This design allows the maximum deflection value of the middle section of the upper pressure roller to be effectively controlled within a very small range under the same load, thereby ensuring that the roller gap remains constant throughout the entire working length of the pressure roller. 2. The segmented adjustment at the top is achieved through several sets of equidistantly distributed lifting cylinders fixed to the top plate. Each lifting cylinder can independently control its extension and retraction stroke, thereby driving the U-shaped frame and rollers fixed to it to make independent fine adjustments. This auxiliary roller pressing mechanism can perform segmented and precise pressure compensation according to the uneven thickness of the carpet in the width direction or the predicted deformation trend of the pressure rollers. When the pressure in the middle is detected to be weak, the pressure of several lifting cylinders distributed in the middle can be increased accordingly, so that the corresponding rollers can apply greater auxiliary pressure to the carpet, thereby compensating for and balancing the pressure distribution as a whole. 3. The adjustable pressure structure inside the upper pressure roller enables a more precise and flexible segmented pressure control in another dimension. By introducing gas at different pressures into the air inlet pipe through an external air supply device, the gas enters each independent partition chamber through the air outlet and finally acts on the corresponding skin pressure adjustment chamber. By independently adjusting the air pressure of each partition chamber, the expansion and deformation of the pressure roller skin in different sections can be precisely controlled. In sections with high air pressure, the skin expands more prominently, resulting in greater local pressure on the carpet in that area; in sections with low air pressure, the pressure is reduced accordingly. This design enables a single upper pressure roller to have the ability to perform "universal" pressure fine adjustment in the axial direction. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of Embodiment 1 of the carpet roller pressing device of this utility model; Figure 2 The diagram shown is a three-dimensional structural diagram of the back plate and the limiting roller in Embodiment 1 of the carpet roller pressing device of this utility model. Figure 3 The diagram shown is a three-dimensional structural schematic of Embodiment 2 of the carpet roller pressing device of this utility model; Figure 4 The diagram shown is a three-dimensional structural schematic of the top segment pressure adjustment part in Embodiment 2 of the carpet roller pressing device of this utility model. Figure 5 The diagram shown is a three-dimensional structural schematic of Embodiment 3 of the carpet roller pressing device of this utility model; Figure 6 The diagram shown is a cross-sectional view of the adjustable pressure structure inside the upper pressure roller in Embodiment 3 of the carpet roller pressing device of this utility model. Figure 7 The diagram shown is a three-dimensional structural schematic of Embodiment 4 of the carpet roller pressing device of this utility model.

[0016] Explanation of reference numerals in the attached drawings: 1. Conveyor frame; 2. Roller press frame; 3. Lower pressure roller; 4. Upper pressure roller; 5. Guide roller; 6. Support roller; 7. Limit roller; 8. Telescopic cylinder; 9. Lifting slider; 10. Motor; 11. Driven sprocket; 12. Drive sprocket; 13. Chain; 14. Air inlet pipe; 15. Back plate; 16. Roller frame; 17. Guide rail; 18. Guide slider; 19. Threaded column; 20. Skin; 21. Partition plate; 22. Separation chamber; 23. Pressure regulating chamber; 24. Top plate; 25. Lifting cylinder; 26. U-shaped frame; 27. Roller; 28. Adjusting nut. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Example 1 Please see Figures 1-2This utility model provides an embodiment: a carpet roller pressing device, including a conveyor frame 1 and a roller pressing frame 2 disposed at the outlet end of the conveyor frame 1. A lower pressing roller 3 and a liftable upper pressing roller 4 are rotatably connected between the vertical end plates on both sides of the roller pressing frame 2. The upper pressing roller 4 and the lower pressing roller 3 are arranged vertically aligned. Several sets of guide rollers 5 are rotatably connected inside the conveyor frame 1. Several rotatable support rollers 6 are installed at the upper end of the roller pressing frame 2. The support rollers 6 are disposed between the conveyor frame 1 and the lower pressing roller 3. It also includes two sets of limiting rollers 7. The two sets of limiting rollers 7 are adjustablely installed on the inner side of the vertical end plate of the conveyor frame 1 and are symmetrically arranged along the width direction of the carpet. The upper pressing roller 4 adopts a variable cross-section structure with thickened ends and tapered waist in the middle.

[0019] The upper ends of the vertical end plates on both sides of the roller press frame 2 are respectively fixedly installed with telescopic cylinders 8. The telescopic ends of each telescopic cylinder 8 pass downward through the top of the vertical end plate and are fixedly connected to the lifting slider 9. The lifting slider 9 is slidably installed on the inner side of the vertical end plate. The upper pressure roller 4 is rotatably connected between the two opposing lifting sliders 9. The upper end of the roller press frame 2 is fixedly connected with a motor 10. The driven sprocket 11 is mounted on the journal of the lower pressure roller 3 on the same side of the motor. The output shaft of the motor 10 is mounted with a driving sprocket 12. The driving sprocket 12 and the driven sprocket 11 are connected by a chain 13.

[0020] Meanwhile, two sets of threaded posts 19 are inserted into the vertical end plates on both sides of the conveyor frame 1. The ends of the threaded posts 19 are fixedly connected to the back plate 15. The back plate 15 is arranged parallel to the vertical end plates of the conveyor frame 1. Several sets of roller frames 16 are installed inside the back plate 15. The limiting roller 7 is rotatably connected to the inside of the roller frame 16. Two sets of adjusting nuts 28 are also threaded onto each set of threaded posts 19.

[0021] In addition, a guide rail 17 is fixedly installed on the upper end of the base plate of the conveyor frame 1, and a matching guide slider 18 is slidably connected on the guide rail 17. The guide slider 18 is fixedly connected to the back plate 15.

[0022] During operation, two sets of limiting rollers 7 symmetrically installed on both sides of the conveyor frame 1 limit the width of the carpet to prevent deviation. If the limiting width needs to be adjusted, first loosen the two sets of adjusting nuts 28 on the threaded column 19, then move the back plate 15 fixedly connected to the guide slider 18. The guide slider 18 slides on the guide rail 17. After adjustment, tighten the adjusting nuts 28 to fix the position of the back plate 15 and the limiting rollers 7 in the roller frame 16. Lay the carpet to be rolled flat on the conveyor frame 1 and guide it smoothly to the outlet end through several sets of guide rollers 5. After the carpet is sent out of the conveyor frame 1, it is supported by several rotatable support rollers 6 installed on the upper end of the roller press frame 2 and smoothly transitions to the rolling area. Start the fixing device. The motor 10, mounted on the upper end of the roller press frame 2, transmits power through the drive sprocket 12 and chain 13 on the output shaft to the driven sprocket 11 on the journal of the lower roller 3, thereby driving the lower roller 3 to rotate. At the same time, it controls the telescopic cylinder 8, which is fixedly installed on the upper end of the vertical end plates on both sides of the roller press frame 2, to move. Its telescopic end pushes the lifting slider 9 to slide along the inner side of the end plate, thereby adjusting the height of the upper roller 4, which is rotatably connected between the two lifting sliders 9, so that it forms a suitable roller pressing gap with the lower roller 3. The carpet is fed into the roller pressing gap between the upper roller 4 and the lower roller 3, which are arranged vertically and vertically. Under the rotation and pressure of the two rollers, it is compacted and flattened. The carpet after roller pressing is output from the other end of the device for collection or to enter the next process.

[0023] Example 2 Please see Figures 3-4 This utility model provides an embodiment: a carpet roller pressing device, which differs from embodiment 1 in that a top plate 24 is fixedly connected between the vertical end plates on both sides of the roller pressing machine frame 2, and a number of equidistantly distributed lifting cylinders 25 are fixedly connected to the upper end of the top plate 24. The telescopic end of each lifting cylinder 25 passes downward through the top plate 24 and is fixedly connected to a U-shaped frame 26. A roller 27 is rotatably connected inside the U-shaped frame 26.

[0024] During operation, as needed, each set of lifting cylinders 25 fixedly connected to the top plate 24 can be activated to drive their telescopic ends to push down the U-shaped frame 26, so that the rollers 27 rotatably connected in the U-shaped frame 26 contact the carpet surface and adjust the roller pressure.

[0025] Example 3 Please see Figures 5-6This utility model provides an embodiment: a carpet roller pressing device, which differs from embodiment 1 in that an air inlet pipe 14 is rotatably connected inside the upper pressing roller 4, and the air inlet pipe 14 is connected to an external air supply device. The upper pressing roller 4 is covered with a skin 20, and several equally spaced partitions 21 are fixedly installed inside it. A partition cavity 22 is formed between adjacent partitions. A pressure regulating cavity 23 corresponding to each partition cavity 22 is provided on the inner side of the skin 20. Each partition cavity 22 has an air inlet that communicates with the pressure regulating cavity 23. An air outlet corresponding to each partition cavity 22 is provided on the air inlet pipe 14.

[0026] During operation, the elastic pressing function of the upper pressure roller 4 is used to connect the external air supply device to the air inlet pipe 14 rotatably connected inside the upper pressure roller 4. The gas enters the partition chamber 22 formed by the partition plate 21 through the air outlet on the air inlet pipe 14, and then flows into the pressure regulating chamber 23 inside the skin 20 through the air inlet on the partition chamber 22. By adjusting the air pressure, the elastic deformation of the skin 20 can be changed, thereby achieving different rolling effects. The carpet after rolling is output from the other end of the device for collection or to enter the next process.

[0027] Example 4 Please see Figure 7 This utility model provides an embodiment: a carpet roller pressing device, which differs from embodiment 1 in that a top plate 24 is fixedly connected between the vertical end plates on both sides of the roller pressing frame 2, and several sets of equidistantly distributed lifting cylinders 25 are fixedly connected to the upper end of the top plate 24. The telescopic end of each lifting cylinder 25 passes downward through the top plate 24 and is fixedly connected to a U-shaped frame 26. A roller 27 is rotatably connected inside the U-shaped frame 26. An air inlet pipe 14 is rotatably connected inside the upper pressing roller 4. The air inlet pipe 14 is connected to an external air supply device. The outer side of the upper pressing roller 4 is covered with a skin 20, and several equidistantly distributed partitions 21 are fixedly installed inside it. A partition cavity 22 is formed between adjacent partitions. A pressure regulating cavity 23 corresponding to each partition cavity 22 is provided inside the skin 20. Each partition cavity 22 has an air inlet that communicates with the pressure regulating cavity 23. An air outlet corresponding to each partition cavity 22 is provided on the air inlet pipe 14.

[0028] During operation, the lifting cylinders 25 fixedly connected to the top plate 24 are activated, driving their telescopic ends to push down the U-shaped frame 26, so that the rollers 27 rotatably connected inside the U-shaped frame 26 contact the carpet surface for adjusting the rolling pressure. Alternatively, the elastic pressing function of the upper pressure roller 4 can be used, connecting an external air supply device to the air inlet pipe 14 rotatably connected inside the upper pressure roller 4. The gas enters the partition chamber 22 formed by the partition plate 21 through the air outlet on the air inlet pipe 14, and then flows into the pressure regulating chamber 23 inside the skin 20 through the air inlet on the partition chamber 22. By adjusting the air pressure, the elastic deformation of the skin 20 can be changed, thereby achieving different rolling effects. The carpet after rolling is output from the other end of the device for collection or to enter the next process.

[0029] Through the above steps, by designing the upper pressure roller 4 as a variable cross-section structure with thickened ends and a tapered middle section, the roller's resistance to bending deformation is greatly enhanced, ensuring uniform roller pressure height along the entire width of the carpet. This guarantees the uniformity of product compaction and quality stability. This variable cross-section structure is a precisely calculated equal-strength design. When the pressure roller operates under load, the middle section experiences the greatest bending moment, while the ends mainly bear shear stress. Traditional equal-diameter pressure rollers have insufficient bending section modulus in the middle, making them prone to deflection. Appropriately tapering the middle section does not weaken its strength but rather distributes the material more rationally: thickening both ends significantly enhances the rigidity of the support journal and... The strength ensures the stability of the connection with the lifting slider 9, reduces stress concentration and inelastic deformation at the support point, and optimizes the overall weight by tapering the middle section. While ensuring sufficient bending section modulus in the middle, it avoids material redundancy, making the overall weight distribution and mechanical properties of the pressure roller more compatible with the actual stress conditions. This design allows the maximum deflection value of the middle section of the upper pressure roller 4 to be effectively controlled within a very small range under the same load, thus ensuring that the roller gap remains constant throughout the entire working length of the pressure roller. This solves the problem that the pressure rollers of existing roller pressing devices are prone to slight bending deformation, resulting in inconsistent compaction in different areas along the width of the carpet.

[0030] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A carpet roller pressing device, comprising a conveyor frame (1) and a roller pressing frame (2) disposed at the outlet end of the conveyor frame (1), wherein a lower pressing roller (3) and a liftable upper pressing roller (4) are rotatably connected between the vertical end plates on both sides of the roller pressing frame (2), the upper pressing roller (4) and the lower pressing roller (3) are arranged vertically aligned, a plurality of guide rollers (5) are rotatably connected inside the conveyor frame (1), and a plurality of rotatable support rollers (6) are installed at the upper end of the roller pressing frame (2), the support rollers (6) being disposed between the conveyor frame (1) and the lower pressing roller (3), characterized in that: It also includes two sets of limiting rollers (7), which are adjustablely installed on the inner side of the vertical end plate of the conveyor frame (1) and arranged symmetrically along the width of the carpet. The upper pressure roller (4) adopts a variable cross-section structure with double-end thickening and middle waist tapering.

2. The carpet roller pressing device according to claim 1, characterized in that: Telescopic cylinders (8) are fixedly installed on the upper ends of the vertical end plates on both sides of the roller press frame (2). The telescopic end of each telescopic cylinder (8) passes downward through the top of the vertical end plate and is fixedly connected to the lifting slider (9). The lifting slider (9) is slidably installed on the inner side of the vertical end plate. The upper pressure roller (4) is rotatably connected between the two opposing lifting sliders (9).

3. The carpet roller pressing device according to claim 1, characterized in that: A motor (10) is fixedly connected to the upper end of the roller press frame (2). A driven sprocket (11) is mounted on the journal of the lower press roller (3) on the same side as the motor. A driving sprocket (12) is mounted on the output shaft of the motor (10). The driving sprocket (12) and the driven sprocket (11) are connected by a chain (13).

4. The carpet roller pressing device according to claim 1, characterized in that: Two sets of threaded columns (19) are inserted into the vertical end plates on both sides of the conveyor frame (1). The ends of the threaded columns (19) are fixedly connected to the back plate (15). The back plate (15) is arranged parallel to the vertical end plates of the conveyor frame (1). Several sets of roller frames (16) are installed inside the back plate (15). The limiting roller (7) is rotatably connected inside the roller frame (16). Two sets of adjusting nuts (28) are also threaded onto each set of threaded columns (19).

5. A carpet roller pressing device according to claim 4, characterized in that: A guide rail (17) is fixedly installed on the upper end of the bottom plate of the conveyor frame (1). A matching guide slider (18) is slidably connected on the guide rail (17). The guide slider (18) is fixedly connected to the back plate (15).

6. A carpet roller pressing device according to claim 1, characterized in that: A top plate (24) is fixedly connected between the vertical end plates on both sides of the roller press frame (2). Several sets of equidistantly distributed lifting cylinders (25) are fixedly connected to the upper end of the top plate (24). The telescopic end of each lifting cylinder (25) passes downward through the top plate (24) and is fixedly connected to the U-shaped frame (26). A roller (27) is rotatably connected inside the U-shaped frame (26).

7. A carpet roller pressing device according to claim 1 or 6, characterized in that: An air inlet pipe (14) is rotatably connected inside the upper pressure roller (4). The air inlet pipe (14) is connected to an external air supply device. The upper pressure roller (4) is covered with a skin (20). Several equally spaced partitions (21) are fixedly installed inside the upper pressure roller (4). A partition cavity (22) is formed between adjacent partitions. A pressure regulating cavity (23) corresponding to each partition cavity (22) is provided on the inner side of the skin (20). Each partition cavity (22) has an air inlet that communicates with the pressure regulating cavity (23). An air outlet corresponding to each partition cavity (22) is provided on the air inlet pipe (14).

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