A rolling mechanism
By installing a detector and an airbag adjustment system in the rolling mechanism, the problem of uneven substrate weight was solved, and the uniformity of product weight and precise control of the production process were achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN MODI BIOMATERIALS CO LTD
- Filing Date
- 2025-08-22
- Publication Date
- 2026-06-26
AI Technical Summary
Existing rolling equipment cannot automatically adjust the extrusion pressure according to the characteristics of the substrate, resulting in uneven product weight and affecting product consistency.
First and second detectors are installed in the rolling mechanism to monitor and adjust the gap between the first and second rolls in real time by detecting the weight before and after rolling. The gap is precisely adjusted using airbags and rubber layers to ensure the uniformity of the feed amount.
It achieves uniform control of product weight, reduces manual intervention, and improves the precision and consistency of the production process.
Smart Images
Figure CN224412098U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of nonwoven fabric production technology, and in particular to a rolling mechanism. Background Technology
[0002] In the nonwoven fabric processing industry, existing padding equipment can compensate for the deflection of the rollers to achieve a uniform liquid coverage rate in the fabric. Therefore, it is widely used in the dyeing of pure cotton, chemical fiber and their blended fabrics and in textile finishing. The rollers use air pressure on both sides and hydraulic pressure in the middle. Then, through the proportional adjustment valve, the oil pressure input into the middle roller is kept in a certain ratio with the air pressure on the left and right sides, which can generate uniform linear pressure throughout the entire width of the padding point and achieve the effect of uniform liquid coverage in the fabric in the fabric width.
[0003] However, if the extrusion pressure between the rolls remains constant, the thickness and weight of the substrate (per 1m) will vary. 2 Uneven weight distribution (of the substrate) and the inability to automatically adjust the feed rate according to the characteristics of the substrate will result in uneven product weight. In the nonwoven fabric industry, weight is an extremely important indicator; excessive weight deviation will lead to low product consistency. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rolling mechanism.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: a rolling mechanism, wherein a first detector and a second detector are respectively provided on the input side and the output side of the rolling mechanism, and the rolling mechanism includes:
[0006] Fixture;
[0007] The fixed frame is equipped with a first roller and a second roller. The amount of material fed can be adjusted by adjusting the gap between the first roller and the second roller.
[0008] The first roll and the second roll can expand outward to adjust the gap size.
[0009] As a further description of the above technical solution: the first roll is mounted on the fixed frame via a mounting base.
[0010] As a further description of the above technical solution: an adjustment plate is hinged to the fixed frame, and the second roller is installed at the adjustment plate.
[0011] As a further description of the above technical solution: one side of the adjusting plate is hinged to the telescopic assembly, and the telescopic assembly pushes the adjusting plate to rotate, thereby driving the second roller to move.
[0012] As a further description of the above technical solution: the first roll and the second roll have the same structure.
[0013] As a further description of the above technical solution: the first roll or the second roll includes a steel roll, and a rubber layer is sleeved on the outer side of the steel roll, and there is a gap between the rubber layer and the steel roll.
[0014] As a further description of the above technical solution: a cavity is opened in the middle of the steel roller, and one side of the cavity is connected to a cylinder.
[0015] As a further description of the above technical solution: the steel roller is provided with a number of air holes, and a pneumatic valve is provided inside the air holes.
[0016] As a further description of the above technical solution: a plurality of air bladders are provided in the gap between the steel roller and the rubber layer, and the air bladders are connected to the cavity through the air holes and the pneumatic valve.
[0017] As a further description of the above technical solution: the first roll and the second roll are connected by a drive motor for rotation control.
[0018] The above technical solution has the following advantages or beneficial effects:
[0019] The gap between the first and second rolls is adjusted, and the weight of the material before and after rolling is detected by the first and second detectors respectively for real-time monitoring. The first and second rolls are equipped with air bladders and rubber layers. The air bladders are enlarged by the cylinder pressurization, causing the rubber layers to expand, thereby adjusting the gap between the first and second rolls a second time. Attached Figure Description
[0020] Figure 1 The three-dimensional rolling mechanism proposed in this utility model Figure 1 ;
[0021] Figure 2 The three-dimensional rolling mechanism proposed in this utility model Figure 2 ;
[0022] Figure 3 This is a cross-sectional view of the first or second roll in this utility model.
[0023] Legend:
[0024] 1. First detector; 2. Second detector; 3. Fixing frame; 4. First roll; 5. Second roll; 6. Mounting base; 7. Adjusting plate; 8. Telescopic assembly; 9. Steel roll; 10. Rubber layer; 11. Cavity; 12. Cylinder; 13. Air hole; 14. Pneumatic valve; 15. Airbag. Detailed Implementation
[0025] 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.
[0026] Reference Figures 1-3 The present invention provides an embodiment of a rolling mechanism, wherein a first detector 1 and a second detector 2 are respectively provided on the input side and the output side of the rolling mechanism. The rolling mechanism includes a fixed frame 3; a first roller 4 and a second roller 5 are provided on the fixed frame 3, and the feeding amount is adjusted by adjusting the gap between the first roller 4 and the second roller 5; the first roller 4 and the second roller 5 can expand outward to adjust the gap size.
[0027] In this embodiment, the first detector 1 and the second detector 2 are basis weight detectors, used to detect the basis weight of the substrate conveyed by the rolling mechanism. This basis weight detector is existing technology and will not be described in detail. A closed-loop detection system is formed by the first detector 1 on the input side and the second detector 2 on the output side, allowing real-time monitoring of the basis weight of the substrate before and after passing through the rolls. The detection data can be fed back to the control system (existing technology, not shown in the figure) to control the roll gap adjustment, improving rolling accuracy and consistency. Adjusting the gap between the first roll 4 and the second roll 5 initially adjusts the substrate feeding amount. The first detector 1 and the second detector 2 send real-time basis weight and thickness information to the control system. After analyzing the data through the information processing center, the control system sends a command to adjust the extrusion pressure between the first roll 4 and the second roll 5 to the corresponding value, thereby adjusting the feeding amount. After feeding, the substrate passes through the second detector 2, which feeds back the feeding amount information to the control system. When the feeding amount does not meet the requirements, the control system sends a command to further fine-tune the pressure between the first roll 4 and the second roll 5, so that the feeding amount reaches the required value. It can reduce human interference in the production process and control the amount of material fed so that the nonwoven fabric can obtain the corresponding amount of material in both the longitudinal and transverse directions, so that the weight deviation of the final product is controlled within a very small range.
[0028] The first roll 4 is mounted on the fixed frame 3 via the mounting base 6; an adjusting plate 7 is hinged to the fixed frame 3, and the second roll 5 is mounted on the adjusting plate 7; one side of the adjusting plate 7 is hinged to the telescopic assembly 8, and the telescopic assembly 8 pushes the adjusting plate 7 to rotate, thereby driving the second roll 5 to move.
[0029] In this embodiment, the first roll 4 is fixed to the fixed frame 3 by the mounting base 6, forming a stable reference support to ensure its position remains unchanged. The second roll 5 is mounted on the rotatable adjusting plate 7 and cooperates with the first roll 4 to roll the substrate. The hinge point between the adjusting plate 7 and the fixed frame 3 forms a stable rotation axis. When the telescopic component 8 pushes the adjusting plate to rotate, the second roll 5 moves along a fixed arc trajectory. The linear telescopic motion of the telescopic component 8 is converted into the rotation angle of the adjusting plate 7 through the hinge point, thereby driving the second roll 5 to move. The telescopic component 8 can be a hydraulic cylinder, an electric push rod, etc.
[0030] The first roll 4 and the second roll 5 have the same structure; the first roll 4 or the second roll 5 includes a steel roll 9, the outer side of which is covered with a rubber layer 10, and there is a gap between the rubber layer 10 and the steel roll 9; a cavity 11 is opened in the middle of the steel roll 9, and one side of the cavity 11 is connected to a cylinder 12; a number of air holes 13 are opened on the steel roll 9, and a pneumatic valve 14 is provided inside the air holes; a number of airbags 15 are provided in the gap between the steel roll 9 and the rubber layer 10, and the airbags 15 are connected to the cavity 11 through the air holes 13 and the pneumatic valve 14.
[0031] In this embodiment, the steel roller 9 ensures that the roll does not bend or deform, and the outer rubber layer 10 is in direct contact with the substrate. It has the characteristics of elasticity, wear resistance and corrosion resistance. During the rolling process, it can fully adhere to the surface of the substrate to avoid indentations or damage caused by rigid contact.
[0032] The gap between the rubber layer 10 and the steel roller 9 provides space for the expansion of the airbag 15, while also allowing the rubber layer 10 to undergo elastic deformation under stress. This enables the roller to adapt to substrates of different hardness. Air is supplied to the cavity 11 through the cylinder 12, and the gas enters the corresponding airbag 15 through the air hole 13 and the pneumatic valve 14. Each airbag can be inflated independently, achieving precise adjustment of the local pressure on the surface of the rubber layer 10. The pneumatic valve 14 is used to adjust the gas content inside the airbag 15, and the airbag pressure can be adjusted in real time based on the data fed back by the second detector 2.
[0033] Specifically, an airbag 1 is set every 20cm between the rubber layer 10 and the steel roller 9, which helps to monitor the substrate in a timely manner and adjust the feeding amount more accurately according to the substrate weight and thickness deviation, so that the product weight and thickness difference is smaller and more uniform.
[0034] The first roll 4 and the second roll 5 are connected by a drive motor for rotation control.
[0035] In this embodiment, the first roll 4 and the second roll 5 are controlled by independent drive motors to ensure that the surface linear speed of the two rolls is consistent, and to prevent the substrate from being stretched or wrinkled due to the speed difference during the rolling process.
[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A rolling mechanism, characterized in that, The rolling mechanism is provided with a first detector (1) and a second detector (2) on its input and output sides, respectively. The rolling mechanism includes: Fixture (3); The fixed frame (3) is provided with a first roller (4) and a second roller (5). The amount of material fed can be adjusted by adjusting the gap between the first roller (4) and the second roller (5). The first roll (4) and the second roll (5) can expand outward to adjust the gap size.
2. The rolling mechanism according to claim 1, characterized in that: The first roll (4) is mounted on the fixed frame (3) via a mounting base (6).
3. The rolling mechanism according to claim 1, characterized in that: An adjusting plate (7) is hinged to the fixing frame (3), and the second roller (5) is installed on the adjusting plate (7).
4. The rolling mechanism according to claim 3, characterized in that: One side of the adjusting plate (7) is hinged to the telescopic assembly (8). The telescopic assembly (8) pushes the adjusting plate (7) to rotate, thereby driving the second roller (5) to move.
5. The rolling mechanism according to claim 1, characterized in that: The first roll (4) has the same structure as the second roll (5).
6. The rolling mechanism according to claim 1, characterized in that: The first roll (4) or the second roll (5) includes a steel roll (9), and a rubber layer (10) is sleeved on the outside of the steel roll (9), and there is a gap between the rubber layer (10) and the steel roll (9).
7. The rolling mechanism according to claim 6, characterized in that: A cavity (11) is opened in the middle of the steel roller (9), and one side of the cavity (11) is connected to the cylinder (12).
8. The rolling mechanism according to claim 7, characterized in that: The steel roller (9) has several air holes (13), and a pneumatic valve (14) is provided inside the air holes.
9. The rolling mechanism according to claim 8, characterized in that: A plurality of airbags (15) are provided in the gap between the steel roller (9) and the rubber layer (10). The airbags (15) are connected to the cavity (11) through the air hole (13) and the pneumatic valve (14).
10. The rolling mechanism according to claim 1, characterized in that: The first roll (4) and the second roll (5) are connected by a drive motor for rotation control.