Belt type multi-roller press for producing cream low-density hydrophobic plate

Abstract

The invention provides a belt type multi-roller press for producing cream low-density hydrophobic plates, which comprises a rack, an elastic pressing piece, a power driving piece, a tensioning assembly and a multi-stage roller body assembly, and the multi-stage roller body assembly is suspended on the rack at intervals in the material conveying direction; the power driving part and the tensioning assembly are arranged at the two ends of the machine frame respectively, the elastic pressing part is arranged between the power driving part and the tensioning assembly in a winding mode, and the elastic pressing part wraps the outer edge of the multi-stage roller body assembly to form a continuous pressing plane covering the multi-stage roller body assembly. The outer edge of the multi-stage roller body assembly is coated with the elastic pressing piece to form the pressing plane, the tension force of the elastic pressing piece is used for compensating the pressure vacancy of the gap of the multi-stage roller body assembly, continuous pressure is applied to the material, and elastic rebound of the cream-shaped material is restrained; meanwhile, the elastic characteristic of the elastic pressing piece realizes flexible pushing and grinding of the materials, so that the internal structure of the materials is prevented from being damaged, and the material forming quality is ensured.

Description

Technical Field

[0001] This invention belongs to the technical field of building material production equipment, specifically relating to a belt multi-roll press for producing low-density hydrophobic sheets of cream. Background Technology

[0002] Low-density hydrophobic boards are widely used in construction, packaging, furniture and other fields due to their lightweight, waterproof and heat-insulating properties. The raw materials for the production of this type of board are often a paste-like mixture, composed of base fiber, binder, hydrophobic additives and solvents. It is characterized by high fluidity, low density and easy separation of components, which places extremely high demands on the molding precision and performance protection capabilities of the production equipment.

[0003] The presses commonly used in the production of sheet materials are mostly designed for solid or semi-solid materials. During the processing, the press rollers are arranged in multiple groups of press rollers at equal intervals. Each press roller group consists of a fixed roller structure composed of two pairs of press rollers, which are used to extrude and form the sheet material. However, there are many defects when the existing presses are applied to cream-like materials: (1) The presses are mostly single-stage high-pressure forming, which makes it difficult to accurately control the low density characteristics and easily damages the hydrophobic additive structure in the material, reducing the hydrophobic properties of the sheet material; (2) There are gaps between the press roller groups of the existing presses. Since cream-like materials are easily deformed and rebound, during the pressing process, the cream-like materials will be squeezed into the gaps between the two press roller groups and cannot be effectively pressed; (3) The production is mostly intermittent, which is inefficient and results in poor product consistency. Summary of the Invention

[0004] The purpose of this invention is to provide a belt multi-roll press for producing low-density hydrophobic sheets for creams, which can at least solve some of the defects in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A belt multi-roll press for producing low-density hydrophobic sheets for creams includes a frame, an elastic pressing component, a power drive component, a tensioning component, and a multi-stage roller assembly. The multi-stage roller assembly is suspended at intervals on the frame along the material conveying direction. The power drive component and the tensioning component are respectively disposed at both ends of the frame. The elastic pressing component is wound between the power drive component and the tensioning component, and the elastic pressing component covers the outer edge of the multi-stage roller assembly to form a continuous pressing plane covering the multi-stage roller assembly.

[0007] Furthermore, the multi-stage roller assembly forms a pressing slope from high to low along the material conveying direction.

[0008] Furthermore, each roller assembly includes a roller and a roller drive that drives the roller to move up and down along the direction perpendicular to the material conveying direction.

[0009] Furthermore, the aforementioned belt multi-roll press also includes a wetting mechanism for wetting the surface of the elastic pressing part, the wetting mechanism being disposed on the frame near the material feeding end.

[0010] Furthermore, the wetting mechanism includes a first water spraying component for spraying water onto the surface of the elastic pressing component, and a first vacuum negative pressure water absorption component for adjusting the moisture content of the elastic pressing component after water spraying; the first water spraying component and the first vacuum negative pressure water absorption component are sequentially arranged above the frame along the running direction of the elastic pressing component.

[0011] Furthermore, the aforementioned belt multi-roll press also includes a cleaning mechanism for cleaning the elastic pressing parts after the material is pressed, the cleaning mechanism being disposed on the frame away from the material feeding end.

[0012] Furthermore, the cleaning mechanism includes a second water spraying assembly for rinsing the surface of the elastic pressing component after pressing the material, and a second vacuum negative pressure water absorption assembly for absorbing residual fine materials on the surface of the elastic pressing component after rinsing; the second water spraying assembly and the second vacuum negative pressure water absorption assembly are sequentially arranged above the frame along the running direction of the elastic pressing component.

[0013] Furthermore, the cleaning mechanism also includes an immersion tank and a third vacuum negative pressure water absorption assembly. The immersion tank contains a liquid medicine that can dissolve materials. The immersion tank is equipped with an immersion roller that immerses the elastic pressing component in the liquid medicine. After rinsing, the elastic pressing component passes through the immersion tank and the third vacuum negative pressure water absorption assembly.

[0014] Furthermore, the outer ring of the impregnation roller is provided with a flattening part for flattening the surface of the elastic pressing part.

[0015] Furthermore, the aforementioned belt multi-roll press also includes an alignment component for adjusting the alignment of the elastic pressing member.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] (1) The belt multi-roll press provided by the present invention uses an elastic pressing component to cover the outer edge of the multi-stage roller assembly to form a pressing plane. The tension of the elastic pressing component compensates for the pressure gap between the multi-stage roller assembly, applies continuous pressure to the material, and suppresses the elastic rebound of the cream-like material. At the same time, the elastic characteristics of the elastic pressing component realize the flexible pushing and rolling of the material, thereby avoiding damage to the internal structure of the material and ensuring the quality of the material forming.

[0018] (2) The multi-stage roller assembly of the belt multi-roller press provided by the present invention forms a pressing oblique line from high to low along the material conveying direction, realizing the gradient rolling of cream-like materials from thick to thin, avoiding the deformation problem caused by excessive single pressing thickness of traditional fixed rollers, and effectively improving the accuracy of material thickness.

[0019] The present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0020] Figure 1 This is a front view of the belt multi-roll press in an embodiment of the present invention;

[0021] Figure 2 This is a rear view of the belt multi-roll press in an embodiment of the present invention;

[0022] Figure 3 This is a top view of the belt multi-roll press in an embodiment of the present invention;

[0023] Figure 4 This is a left view of the belt multi-roll press in an embodiment of the present invention.

[0024] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Elastic pressing component; 3. Roller assembly; 4. Tensioning assembly; 5. First vacuum negative pressure water suction assembly; 6. First water spray pipe; 7. Water receiving tank; 8. Third vacuum negative pressure water suction assembly; 9. Immersed roller; 10. Immersed tank; 11. Second vacuum negative pressure water suction assembly; 12. Second water spray pipe; 13. Cleaning water tank; 14. Power drive component; 15. Alignment assembly; 16. Spiral steel bar. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] In the description of this invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection", and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an abutting connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0028] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of this invention, unless otherwise stated, "multiple" or "multi-level" means two or more.

[0029] To address the problems of low pressing precision and easy rebound deformation of cream-like materials used in the production of low-density hydrophobic boards using existing roller presses, this embodiment provides a belt multi-roller press, such as... Figures 1 to 4 As shown, it includes a frame 1, an elastic pressing component 2, a power drive component 14, a tensioning assembly 4, and a multi-stage roller assembly 3, wherein the multi-stage roller assembly 3 is along the material conveying direction (i.e., Figure 1 The rollers are suspended at intervals from left to right on the frame 1. The power drive 14 and the tensioning assembly 4 are respectively disposed at both ends of the frame 1. The elastic pressing member 2 is wound between the power drive 14 and the tensioning assembly 4. The power drive 14 provides the power to drive the elastic pressing member 2 to circulate. The tensioning assembly 4 is used to compensate for and adjust the tension of the elastic pressing member 2. The elastic pressing member 2 covers the outer edge of the multi-stage roller assembly 3 to form a continuous pressing plane covering the multi-stage roller assembly 3. This pressing plane is used to continuously and flexibly press the creamy material that has been crushed by the multi-stage roller assembly 3.

[0030] The elastic pressing component 2 can be made of any material that has a certain degree of elasticity and is not easily adhered to the cream-like material. For example, the elastic pressing component 2 can be made of, but is not limited to, blankets or cloth. In this embodiment, a blanket is used. Preferably, the surface of the elastic pressing component 2 can be designed as a rough plane to ensure friction during the pressing process of the cream-like material and prevent the material from slipping.

[0031] During operation, the material conveyor line for conveying cream-like material passes under the frame 1. The pressing plane formed by the elastic pressing member 2 covering the multi-stage roller assembly 3 comes into contact with the cream-like material on the material conveyor line. The multi-stage roller assembly 3 applies a crushing force to the cream-like material. At the same time, the tension force of the elastic pressing member 2 compensates for the pressure gap between the multi-stage roller assembly 3, applying continuous pressure to the cream-like material, suppressing the elastic rebound of the cream-like material. Furthermore, the elastic pressing member 2 has a certain degree of elasticity and will not damage the internal structure of the cream-like material. It can flexibly push and crush the cream-like material until the required thickness is formed.

[0032] Because cream-like materials are prone to deformation and rebound, if the multi-stage roller assembly 3 were to roll the cream-like material to the designed thickness in one go, it would not only require high rolling pressure, which could easily damage the internal structure of the cream-like material, but the rebound characteristic of the cream-like material would also result in low accuracy of the material's forming thickness. To address this problem, this embodiment optimizes the above technical solution by arranging the multi-stage roller assembly 3 in a pressing oblique line from high to low along the material conveying direction. When the cream-like material enters the belt multi-roller press from the initial end, it first passes through the roller assembly 3 with the highest height for coarse pressing, and then passes through the roller assemblies 3 with gradually decreasing height for progressive fine pressing. This achieves a gradient rolling of the cream-like material from thick to thin, reaching the final required thickness, thereby avoiding material deformation caused by excessive thickness in a single pressing.

[0033] In some embodiments, each stage of the roller assembly 3 can be designed to include a roller and a roller drive component that drives the roller to move up and down along the vertical material conveying direction. Specifically, the roller drive component can be, but is not limited to, a servo motor. The output end of the servo motor is connected to the corresponding roller. The servo motor can drive the corresponding roller to move up and down in the vertical direction. The operator can preset the height parameters of each roller according to the designed plate thickness (i.e., the final thickness required for the cream-like material to be crushed), so that the roller surface of the multi-stage rollers forms a pressing slope from high to low along the material conveying direction.

[0034] Preferably, the roller drive component can also include displacement sensors. By setting the displacement sensors one-to-one with the rollers, the vertical displacement of the rollers can be detected in real time, and the displacement signal can be fed back to the control system of the servo motor. The control system can adjust the output of the servo motor in real time according to the feedback signal to ensure that the height of each roller accurately matches the preset pressing slope parameters and improve the thickness control accuracy.

[0035] In order to minimize the adhesion between the elastic pressing component 2 and the cream-like material after contact, the hydrophobic properties of the cream-like material can be utilized. The elastic pressing component 2 can be designed to absorb saturated moisture before pressing the cream-like material, thereby reducing the adhesion of the cream-like material.

[0036] In some embodiments, a wetting mechanism is provided on the frame 1 near the material feeding end to wet the surface of the elastic pressing member 2 that comes into contact with the cream-like material. Specifically, the wetting mechanism includes a first water spraying component and a first vacuum negative pressure water absorption component 5, which are sequentially arranged above the frame 1 along the running direction of the elastic pressing member 2. The first water spraying component is used to spray water onto the surface of the elastic pressing member 2. The first water spraying component includes a water receiving tank 7 and a first water spraying pipe 6 disposed above the water receiving tank 7. The elastic pressing member 2 passes between the water receiving tank 7 and the first water spraying pipe 6. The first water spraying pipe 6 sprays water onto the surface of the elastic pressing member 2 below it. Excess water is collected by the water receiving tank 7 to avoid leakage affecting the pressing process below. The first vacuum negative pressure water absorption component 5 is used to adjust the moisture content of the elastic pressing member 2 after water spraying. By absorbing the moisture of the elastic pressing member 2 after water spraying through vacuum negative pressure, the elastic pressing member 2 reaches the moisture content specifically required for pressing the cream-like material before pressing.

[0037] Specifically, the first water spray pipe 6 is located directly above the elastic pressing member 2 and is arranged perpendicular to the running direction of the elastic pressing member 2. Multiple nozzles are equally spaced along the axis of the first water spray pipe 6. The water spray from the multiple nozzles can completely cover the entire width of the elastic pressing member 2 to ensure that the contact surface between the elastic pressing member 2 and the creamy material can be completely wetted.

[0038] Since a small amount of material will still adhere to the elastic pressing part 2 after it comes into contact with the creamy material (even after absorbing water), which will also affect the recycling of the elastic pressing part 2, a cleaning mechanism is set after the elastic pressing part 2 presses the creamy material to clean the creamy material adhering to the surface of the elastic pressing part 2. Specifically, the cleaning mechanism is located on the frame 1 at the end away from the material receiving end. The cleaning mechanism includes a second water spray component and a second vacuum negative pressure water absorption component 11. The second water spray component and the second vacuum negative pressure water absorption component 11 are sequentially arranged above the frame 1 along the running direction of the elastic pressing member 2. The second water spray component is used to rinse the surface of the elastic pressing member 2 after pressing the material. The second water spray component includes a cleaning water tank 13 and a second water spray pipe 12 arranged above the cleaning water tank 13. The elastic pressing member 2 after pressing the material passes between the cleaning water tank 13 and the second water spray pipe 12. The second water spray pipe 12 sprays high-pressure water at a certain angle onto the surface of the elastic pressing member 2 with the material adhering to it to rinse the surface of the elastic pressing member 2. The lower part is connected to the cleaning water tank 13 to collect water, so as to avoid water leakage affecting the pressing process. The second vacuum negative pressure water absorption component 11 is used to absorb the fine material remaining on the surface of the elastic pressing member 2 after rinsing.

[0039] In detail, the second water spray pipe 12 is located directly above the elastic pressing member 2 and is arranged perpendicular to the running direction of the elastic pressing member 2. Multiple nozzles are equally spaced on the second water spray pipe 12 along its axial direction. The water spray from the multiple nozzles can completely cover the entire width of the elastic pressing member 2 to ensure that the contact area between the elastic pressing member 2 and the creamy material can be rinsed without dead angles.

[0040] To further optimize the above technical solution, the cleaning mechanism also includes an immersion tank 10 and a third vacuum negative pressure water absorption assembly 8. The immersion tank 10 contains a solution that dissolves materials. An immersion roller 9 is installed within the immersion tank 10 to immerse the elastic pressing component 2 in the solution. After rinsing, the elastic pressing component 2 passes through the immersion tank 10 and the third vacuum negative pressure water absorption assembly 8. The rinsed elastic pressing component 2 bypasses the immersion roller 9 and is immersed in the solution, further dissolving and removing any remaining adhesive material on its surface, thus improving the cleaning effect. After being cleaned and dissolved by the solution, the elastic pressing component 2 passes through the third vacuum negative pressure water absorption assembly 8, where the residual solution is removed by vacuum negative pressure, preventing any impact on the cyclic pressing and use of the elastic pressing component 2.

[0041] In an optimized configuration, the outer ring of the immersion roller 9 is provided with a flattening portion for smoothing the surface of the elastic pressing member 2. In some embodiments, when the elastic pressing member 2 is a blanket, the flattening portion can be a spiral steel strip 16 welded to the outer ring of the immersion roller 9. When the immersion roller 9 rotates, the spiral steel strip 16 has the function of combing the surface of the blanket to both sides, so that the blanket forms a flat surface before it comes into contact with the pressing material again. At the same time, the spiral steel strip 16 can also serve as a roller brush for the surface of the blanket, cleaning up the material that is severely stuck to the surface of the blanket.

[0042] After being cleaned by the aforementioned cleaning mechanism, the elastic pressing component 2 is then wetted by the wetting mechanism. The wetted elastic pressing component 2 is then reused in the pressing process of the cream-like material.

[0043] Optionally, the power drive component 14 includes a main drive roller mounted on the frame 1 and a drive motor that drives the main drive roller to rotate. The elastic pressing component 2 is wound around the main drive roller and is moved by the main drive roller.

[0044] Optionally, the tensioning assembly includes a tensioning roller and a tensioning drive unit mounted on the frame 1. An elastic pressing member 2 is wound around the tensioning roller, and the tensioning drive unit is connected to the tensioning roller, enabling adjustment of the tension force of the elastic pressing member 2 to maintain a preset pressure value. Alternatively, an elastic buffer can be provided at the connection between the tensioning roller and the frame 1 to buffer the impact force during the pressing of the elastic pressing member 2, preventing material damage due to sudden pressure changes and improving the stability of equipment operation.

[0045] In this embodiment, the belt multi-roller press is further optimized by installing an alignment component 15 on the frame. This component is used to adjust the offset between the elastic pressing member 2 and the material conveying centerline during operation, ensuring uniform crushing of the material. The alignment component 15 can be any existing alignment device capable of achieving the alignment function, such as an alignment device for belt conveyors. Its specific structure will not be described here.

[0046] In summary, the belt multi-roller press provided by this invention uses an elastic pressing component to cover the outer edge of the multi-stage roller assembly to form a pressing plane. The tension force of the elastic pressing component compensates for the pressure gap between the multi-stage roller assembly, applying continuous pressure to the material and suppressing the elastic rebound of the cream-like material. At the same time, the elastic characteristics of the elastic pressing component enable flexible pushing and rolling of the material, thereby avoiding damage to the internal structure of the material and ensuring the quality of the material forming.

[0047] The above examples are merely illustrative of the present invention and do not constitute a limitation on the scope of protection of the present invention. All designs that are the same as or similar to the present invention are within the scope of protection of the present invention.

Claims

1. A belt multi-roll press for producing low-density hydrophobic sheets for creams, characterized in that: The device includes a frame, an elastic pressing component, a power drive component, a tensioning component, and a multi-stage roller assembly. The multi-stage roller assembly is suspended at intervals on the frame along the material conveying direction. The power drive component and the tensioning component are respectively disposed at both ends of the frame. The elastic pressing component is wound around the power drive component and the tensioning component, and the elastic pressing component covers the outer edge of the multi-stage roller assembly to form a continuous pressing plane covering the multi-stage roller assembly.

2. The belt multi-roll press for producing low-density hydrophobic sheets of cream as described in claim 1, characterized in that: The multi-stage roller assembly forms a pressing slope from high to low along the material conveying direction.

3. The belt multi-roll press for producing low-density hydrophobic sheets of cream as described in claim 2, characterized in that: Each roller assembly includes a roller and a roller drive component that drives the roller to move up and down along the vertical material conveying direction.

4. The belt multi-roll press for producing low-density hydrophobic sheets of cream as described in claim 1, characterized in that: It also includes a wetting mechanism for wetting the surface of the elastic pressing member, the wetting mechanism being disposed on the frame near the material feeding end.

5. The belt multi-roll press for producing low-density hydrophobic sheets of cream as described in claim 4, characterized in that: The wetting mechanism includes a first water spraying component for spraying water onto the surface of the elastic pressing component, and a first vacuum negative pressure water absorption component for adjusting the moisture content of the elastic pressing component after water spraying; the first water spraying component and the first vacuum negative pressure water absorption component are sequentially arranged above the frame along the running direction of the elastic pressing component.

6. The belt multi-roll press for producing low-density hydrophobic sheets of cream as described in claim 1, characterized in that: It also includes a cleaning mechanism for cleaning the elastic pressing parts after pressing the material, the cleaning mechanism being disposed on the frame away from the material feeding end.

7. The belt multi-roll press for producing low-density hydrophobic sheets of cream as described in claim 6, characterized in that: The cleaning mechanism includes a second water spraying component for rinsing the surface of the elastic pressing component after pressing the material, and a second vacuum negative pressure water absorption component for absorbing the fine residual material on the surface of the elastic pressing component after rinsing; the second water spraying component and the second vacuum negative pressure water absorption component are sequentially arranged above the frame along the running direction of the elastic pressing component.

8. The belt multi-roll press for producing low-density hydrophobic sheets of cream as described in claim 7, characterized in that: The cleaning mechanism also includes an immersion tank and a third vacuum negative pressure water absorption assembly. The immersion tank contains a liquid medicine that can dissolve materials. The immersion tank is equipped with an immersion roller that immerses the elastic pressing component in the liquid medicine. After rinsing, the elastic pressing component passes through the immersion tank and the third vacuum negative pressure water absorption assembly.

9. The belt multi-roll press for producing low-density hydrophobic sheets of cream as described in claim 8, characterized in that: The outer ring of the impregnation roller is provided with a flattening part for flattening the surface of the elastic pressing part.

10. The belt multi-roll press for producing low-density hydrophobic sheets of cream as described in claim 1, characterized in that: It also includes an alignment component for adjusting the alignment of the elastic pressing member.

Images