Belt conveyor with press roller device

Abstract

The application provides a belt conveyor with a press roller device, which comprises a frame, a belt conveying mechanism and a press roller mechanism. The belt conveying mechanism comprises a first belt conveying section and a second belt conveying section. The press roller mechanism comprises an upper press roller and a lower press roller arranged oppositely, a roller body driving assembly for driving the upper press roller and the lower press roller to rotate reversely synchronously, the lower press roller is located between the first belt conveying section and the second belt conveying section, the top of the roller surface of the lower press roller is flush with the conveying surface of the first belt conveying section and the second belt conveying section, and the upper press roller is connected with a lifting driving assembly for driving the upper press roller to lift. The press roller mechanism is arranged in the middle section of the belt conveying mechanism, so that the plate blank is conveyed and pressed simultaneously, the production efficiency is not affected, the light pressing process of each plate blank is realized, and the original production rhythm is adapted. The lifting driving assembly is used for adjusting the lifting of the upper press roller, the thickness of the plate blank is controlled, and different production requirements are adapted.

Description

Technical Field

[0001] This invention belongs to the field of material conveying and slab forming technology, and specifically relates to a belt conveyor with a pressure roller device. Background Technology

[0002] Currently, calcium silicate boards produced domestically and internationally are usually low-density boards when used as decorative panels. They are generally not pressed in a press. Some boards that require control of the board thickness will be pressed in a press at low pressure for a period of time. Most of them are made by pressing continuous stacks of boards into the press. However, low-density boards have a fast production speed, and the pressing time for stacks of boards is relatively long, which will result in a slow production cycle, low efficiency, and difficulty in balancing output and quality.

[0003] Furthermore, existing methods for producing patterned decorative calcium silicate boards involve using calcium silicate board as a base material, and then gluing various patterned surface materials onto it to create a composite board. This process requires secondary applicator or coating, making it complex and costly. In addition, traditional conveying equipment cannot simultaneously convey and press, resulting in insufficient online forming capacity and poor adaptability for equipment modifications. Summary of the Invention

[0004] The purpose of this invention is to provide a belt conveyor with a pressure roller device, which can at least solve some of the defects existing in the prior art.

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

[0006] A belt conveyor with a pressure roller device includes a frame and a belt conveying mechanism and a pressure roller mechanism mounted on the frame. The belt conveying mechanism includes a first belt conveying section and a second belt conveying section. The pressure roller mechanism includes an upper pressure roller and a lower pressure roller arranged opposite to each other, and a roller drive assembly that drives the upper pressure roller and the lower pressure roller to rotate synchronously in opposite directions. The lower pressure roller is located between the first belt conveying section and the second belt conveying section, and the top of the roller surface of the lower pressure roller is flush with the conveying surfaces of the first belt conveying section and the second belt conveying section. A lifting drive assembly that drives the upper pressure roller to rise and fall is connected to the upper pressure roller.

[0007] Furthermore, the upper pressure roller is provided with cleaning components on both sides for cleaning the material adhering to the roller surface.

[0008] Furthermore, the dust removal assembly includes a brush and a telescopic drive component. The brush is arranged parallel to the axis of the upper pressure roller, and the movable end of the telescopic drive component drives the brush to selectively adhere to or move away from the surface of the upper pressure roller.

[0009] Furthermore, the upper pressure roller is detachably mounted on the frame via an upper pressure roller mounting bracket, and the upper pressure roller is a smooth roller or an embossed roller with a patterned surface.

[0010] Furthermore, the upper pressure roller is slidably connected to the upper pressure roller mounting frame, which is provided with a lifting detection switch for detecting the lifting limit position of the upper pressure roller and an adjustment scale for calibrating the pressing thickness of the upper pressure roller.

[0011] Furthermore, the lower pressure roller is provided with a first transition plate and a second transition plate on both sides, which are connected to the conveying surfaces of the first belt conveyor section and the second belt conveyor section, respectively. The gap between the first transition plate and the second transition plate is equal to the width of the contact surface between the lower pressure roller and the slab.

[0012] Furthermore, the first belt conveyor section and the second belt conveyor section share a single belt drive component.

[0013] Furthermore, the first belt conveyor section includes a first conveyor belt, a drive roller, and at least one first steering roller, with the first conveyor belt forming a closed loop around the drive roller and each of the first steering rollers; the second belt conveyor section includes a second conveyor belt, a driven roller, and at least one second steering roller, with the second conveyor belt forming a closed loop around the driven roller and each of the second steering rollers; the belt drive is drivenly connected to the drive roller, and one of the first steering rollers and one of the second steering rollers are drivenly connected through a synchronous transmission component.

[0014] Furthermore, the first belt conveyor section and the second belt conveyor section adopt a continuous conveyor belt. The first belt conveyor section includes a drive roller and at least one first steering roller, and the second belt conveyor section includes a driven roller and at least one second steering roller. The belt drive is drivenly connected to the drive roller. The drive roller, the first steering roller, the second steering roller, and the driven roller are drivenly connected through the conveyor belt, and the conveyor belt is located below the lower pressure roller at the position corresponding to the lower pressure roller.

[0015] Furthermore, the belt conveyor mechanism also includes a belt tensioning assembly for tensioning the conveyor belt. The belt tensioning assembly is disposed in the first belt conveyor section and / or the second belt conveyor section. The belt tensioning assembly includes a tension adjusting roller and adjusting modules disposed at both ends of the tension adjusting roller. Each adjusting module includes an adjusting handwheel, a lead screw, a nut slide, and an adjusting mounting seat. The tension adjusting roller is mounted on the nut slide, and the nut slide is threaded onto the lead screw. The lead screw is rotatably mounted on the adjusting mounting seat, and the adjusting mounting seat is fixed to the frame and restricts the axial movement of the lead screw. The adjusting handwheel is connected to the end of the lead screw.

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

[0017] (1) The belt conveyor with pressure roller device provided by the present invention realizes pressing while conveying by setting a pressure roller mechanism in the middle section of the belt conveyor mechanism. It does not require stopping the machine to decelerate and achieves a light pressing process for each slab without affecting the original production efficiency, which is compatible with the original production rhythm. Moreover, the pressing thickness of the slab can be controlled by adjusting the lifting and lowering of the upper pressure roller through the lifting drive component, which is compatible with different production needs.

[0018] (2) The upper pressure roller of the belt conveyor with pressure roller device provided by the present invention can be detached and quickly replaced to realize the pressing of different patterned decorative panels. A single belt conveyor can simultaneously complete the slab conveying, thickness control and pattern pressing, without the need for secondary decals or coatings, simplifying the process and reducing production costs.

[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 schematic diagram of the structure of a belt conveyor with a pressure roller device driven by a lifting cylinder and a servo reduction motor in an embodiment of the present invention;

[0021] Figure 2 yes Figure 1 Front view of a belt conveyor with a pressure roller device in the middle;

[0022] Figure 3 This is a schematic diagram of the structural arrangement of the first belt conveyor section and the second belt conveyor section in this invention, which uses segmented conveyor belts.

[0023] Figure 4 This is a schematic diagram of the structural arrangement of the first belt conveyor section and the second belt conveyor section in this invention, which uses a continuous conveyor belt.

[0024] Figure 5 This is a schematic diagram of the structure of the dust removal component in an embodiment of the present invention;

[0025] Figure 6 This is a schematic diagram of the belt tensioning assembly in an embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the structure of a belt conveyor with a pressure roller device driven by a lifting cylinder and a common geared motor in an embodiment of the present invention.

[0027] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Lower pressure roller; 3. Upper pressure roller; 4. Belt tensioning assembly; 5. Drive roller; 6. Belt drive component; 7. First belt conveyor section; 8. Upper pressure roller mounting frame; 9. Lifting cylinder; 10. Servo geared motor; 11. Dust removal assembly; 12. Second belt conveyor section; 13. Driven roller; 14. First steering roller; 15. Adjustment scale; 16. Lifting detection switch; 17. Second steering roller; 18. Synchronous transmission component; 19. First transition plate; 20. Second transition plate; 21. Brush; 22. Brush holder; 23. Telescopic drive component; 24. Brush mounting frame; 25. Brush adjusting bolt; 26. Brush adjusting seat; 27. Tensioning adjustment roller; 28. Nut slide; 29. ​​Lead screw; 30. Adjusting handwheel; 31. Adjustment mounting seat; 32. Ordinary geared motor; 33. Gearbox; 34. Lifting cylinder. Detailed Implementation

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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, "a plurality of" means two or more.

[0032] like Figure 1 , Figure 2 and Figure 7 As shown, this embodiment provides a belt conveyor with a pressure roller device, including a frame 1, a belt conveying mechanism, and a pressure roller mechanism. Both the belt conveying mechanism and the pressure roller mechanism are mounted on the frame 1. The pressure roller mechanism is located in the middle section of the belt conveying mechanism to achieve simultaneous conveying and pressing. To ensure that the conveying and pressing processes do not interfere with each other, specifically, the belt conveying mechanism includes a first belt conveying section 7 and a second belt conveying section 12. The pressure roller mechanism includes an upper pressure roller 3 and a lower pressure roller 2 arranged opposite to each other, and a roller drive assembly that drives the upper pressure roller 3 and the lower pressure roller 2 to rotate synchronously in opposite directions. The lower pressure roller 2 is located between the first belt conveying section 7 and the second belt conveying section 12, and the top of the roller surface of the lower pressure roller 2 is flush with the conveying surfaces of the first belt conveying section 7 and the second belt conveying section 12. A lifting drive assembly that drives the upper pressure roller 3 to rise and fall is connected to the upper pressure roller 3.

[0033] During operation, the first belt conveyor section 7 / second belt conveyor section 12 of the belt conveyor mechanism continuously conveys the slab to be processed to the top of the lower pressure roller 2. During this process, the lifting drive component drives the upper pressure roller 3 to descend, forming a gap with the lower pressure roller 2 at a preset height (i.e., the designed slab thickness). The roller drive component drives the upper pressure roller 3 and the lower pressure roller 2 to rotate synchronously in opposite directions, performing roll forming on the slab passing through the gap. After roll forming, the slab is smoothly delivered out by the second belt conveyor section 12 / first belt conveyor section 7. The upper pressure roller 3 can rise and reset after the slab passes through, waiting for the next slab, realizing on-demand pressing and continuous online processing without stopping or slowing down, adapting to the continuous operation of the production line. In this embodiment, the conveying and pressing of the slab are carried out simultaneously, without the need for deceleration or machine stoppage. This adapts to the rhythm of the existing production line, improving production efficiency and capacity. Moreover, the lower pressure roller directly connects to the two belt conveyor sections, eliminating the need for a transition structure. The layout is simple and occupies little space, and it can directly replace the existing transition section conveyor equipment with minimal modification. At the same time, the design of the lower pressure roller 2 is flush with the conveying surfaces of the two belt conveyor sections, ensuring no height difference in the slab, stable conveying, independent rolling of each sheet, good thickness consistency, and a flat slab surface. Furthermore, the lifting drive component adjusts the lifting of the upper pressure roller 3 to control the slab pressing thickness, adapting to different production needs.

[0034] For the added pressure roller mechanism, depending on different application requirements, the roller drive assembly can be either a servo geared motor 10 or a regular geared motor 32, and the lifting drive assembly can be either a lifting cylinder 9 or a lifting hydraulic cylinder 34. For example, when used for pressing patterned plates, the roller drive assembly preferably uses two sets of servo geared motors 10 to drive the upper pressure roller 3 and the lower pressure roller 2 respectively, so as to accurately control the roller pressing speed and ensure the integrity and clarity of the pattern. When only the plate thickness needs to be controlled, a single regular geared motor 32 can be used to drive it, so as to reduce the equipment manufacturing cost. When pressing patterned plates, the required pressure is relatively small and the response is required to be rapid. The lifting drive assembly preferably uses a lifting cylinder 9, which can directly utilize the existing air source in the factory, without the need for an additional oil station. It has a simple structure and low cost. If a larger pressing pressure is required, the lifting drive assembly preferably uses a lifting hydraulic cylinder 34, which can stably output a high pressure value, provide a larger pressing force of the pressure roller, achieve a higher plate pressing density, and meet the high-pressure forming requirements.

[0035] In some embodiments, such as Figure 1 As shown, when the roller drive assembly uses two sets of servo geared motors 10 to drive the upper pressure roller 3 and the lower pressure roller 2 respectively, each set of servo geared motors 10 is mounted on a reducer base, which is mounted on the frame 1. The two sets of servo geared motors 10 are connected to the upper pressure roller 3 and the lower pressure roller 2 respectively via couplings. In other embodiments, when the roller drive assembly uses a single ordinary geared motor 32 to drive the upper and lower pressure rollers, such as... Figure 7 As shown, adding a gearbox 33 transforms one input into two outputs, simplifying electrical control and reducing equipment costs. A standard geared motor 32 and a gearbox 33 are mounted on a gearbox mounting bracket. One standard geared motor 32 replaces two servo geared motors 10. The output shaft of the standard geared motor 32 is connected to the input end of the gearbox 33 via a coupling. The gearbox 33 has two output ends, which are connected to the upper pressure roller 3 and the lower pressure roller 2 respectively via universal couplings.

[0036] In this embodiment, depending on different functional requirements, the upper pressure roller 3 can be a smooth roller to press low-density fiberboard, or the upper pressure roller 3 can be an embossing roller with a patterned surface to press patterned decorative panels. To enable multi-functionality, the upper pressure roller 3 is preferably designed for easy disassembly and replacement, allowing it to be replaced with a smooth roller or an embossing roller with different patterns according to different functional needs.

[0037] In some embodiments, the upper pressure roller 3 is mounted on the upper part of the frame 1 via an upper pressure roller mounting bracket 8. The upper pressure roller mounting bracket 8 is detachably connected to the lifting drive assembly and the frame 1 via quick-release connectors. The quick-release connectors include detachable couplings, bolt assemblies, and pipe joints. Specifically, one end of the upper pressure roller 3 is connected to the output end of the roller drive assembly via a detachable coupling. This detachable coupling can be quickly disengaged to separate the power end from the roller end. Both ends of the upper pressure roller 3 are slidably connected to the upper pressure roller mounting frame 8 via upper pressure roller bearing seats. Preferably, the upper pressure roller mounting frame 8 is provided with a sliding groove to restrict and guide the lifting of the upper pressure roller bearing seats. The main body of the upper pressure roller mounting frame 8 is fixedly connected to the movable end of the lifting drive assembly and the support structure on the upper part of the frame 1 via bolt assemblies. During disassembly and assembly, the mounting frame can be released simply by loosening or removing the corresponding bolts. The air / oil interface of the lifting drive assembly (lifting cylinder 9 or lifting oil cylinder 34) is equipped with a detachable pipe joint to facilitate quick disconnection of the fluid pipeline. When replacing or disassembling the upper pressure roller, follow these steps in sequence: First, disconnect the pipe joint of the lifting drive assembly to cut off the air or oil circuit; second, disassemble the detachable coupling at the end of the upper pressure roller 3 shaft to disconnect the power transmission connection; third, loosen and remove the bolt assembly between the upper pressure roller mounting bracket 8 and the lifting drive assembly and frame 1; finally, lift and remove the upper pressure roller 3 together with the upper pressure roller bearing seat and the upper pressure roller mounting bracket 8 as a whole to complete the disassembly; when installing a new upper pressure roller 3, simply reassemble it in the reverse order. The disassembly and assembly process is simple and quick, without the need to disassemble the frame 1 and other conveying components. It can quickly adapt to upper pressure rollers of different specifications or patterns, resulting in high maintenance efficiency.

[0038] Optionally, the lower pressure roller 2 can be mounted on the lower part of the frame 1 via a bearing with a seat, and the upper and lower positions of the lower pressure roller 2 can be adjusted by a screw.

[0039] Optionally, two sets of lifting drive components (lifting cylinder 9 or lifting hydraulic cylinder 34) are provided and symmetrically installed at both ends of the upper pressure roller mounting frame 8. The telescopic ends of the two sets of lifting drive components are respectively connected to the upper pressure roller bearing seats. The two sets of lifting drive components apply force symmetrically to both ends of the upper pressure roller 3, so that the upper pressure roller 3 is subjected to uniform force and no eccentric load during the lifting process, avoiding the roller body tilting, jamming or deformation, ensuring that the upper pressure roller 3 is lifted and lowered horizontally. Moreover, the upper pressure roller 3 provides pressing force at both ends simultaneously, so that the pressure distribution of the upper pressure roller 3 is uniform along the roller length direction, the slab is subjected to consistent force, the thickness is uniform, the plate surface is flat, and the pattern imprint is clear and complete.

[0040] Preferably, a lifting detection switch 16 is provided on the upper pressure roller mounting frame 8 to detect the two extreme positions of the upper pressure roller 3 when it is raised to the highest position and lowered to the lowest position in real time, to prevent overtravel operation, which could lead to overload of the roller body, bearing seat or lifting drive assembly, avoid mechanical collision, jamming or structural damage, and improve the safety of equipment operation.

[0041] Furthermore, an adjustment scale 15 can be set on the upper pressure roller mounting frame 8 for intuitive calibration and reading of the pressing thickness of the upper pressure roller 3, which facilitates quick and accurate adjustment of the gap between the upper pressure roller 3 and the lower pressure roller 2, ensuring the consistency of slab thickness, reducing debugging time, and adapting to the rapid switching of multiple slab specifications.

[0042] Optimized implementation methods, such as Figure 1 As shown, the upper pressure roller 3 is provided with dust removal components 11 on both sides, which are used to clean the material adhering to the roller surface of the upper pressure roller 3 in a timely manner, so as to avoid scaling, indentation or blurring of patterns on the roller surface, and improve the quality and decorative effect of the board surface; at the same time, the dust removal process is carried out synchronously with the production process, without the need for manual cleaning or machine stoppage, without affecting the production rhythm and improving efficiency.

[0043] In some embodiments, such as Figure 5 As shown, the dust removal assembly 11 includes a brush 21 and a telescopic drive component 23. The brush 21 is arranged parallel to the axis of the upper pressure roller 3. The movable end of the telescopic drive component 23 drives the brush 21 to selectively adhere to or move away from the roller surface of the upper pressure roller 3. The telescopic drive component 23 can be, but is not limited to, a telescopic cylinder. During operation, when the slab enters the rolling area, the telescopic drive component 23 extends, causing the brush 21 to adhere to the roller surface of the upper pressure roller 3, automatically scraping away adhering debris as the roller rotates. After the slab passes, the telescopic drive component 23 retracts, and the brush 21 detaches from the roller surface, avoiding affecting the rolling accuracy or pattern clarity.

[0044] Specifically, such as Figure 5 As shown, the dust removal assembly 11 also includes a brush holder 22, a brush mounting bracket 24, and a brush adjusting seat 26. The brush 21 is mounted on the brush holder 22. The fixed end of the brush holder 22 and the telescopic drive member 23 are mounted on the brush mounting bracket 24. The movable end of the telescopic drive member 23 is connected to the brush holder 22. The telescopic drive member 23 drives the brush holder 22 to move accordingly, thereby causing the brush 21 to adhere to or move away from the roller surface of the upper pressure roller 3. The brush mounting bracket 24 is connected to the brush adjusting seat 26 by a brush adjusting bolt 25. The front and rear positions of the brush mounting bracket 24 can be adjusted by the brush adjusting bolt 25, thereby adjusting the contact pressure and gap between the brush 21 and the roller surface of the upper pressure roller 3 to ensure the contact degree between the brush 21 and the upper pressure roller 3. The brush adjusting seat 26 is mounted on the frame 1.

[0045] In an optimized implementation, the first belt conveyor section 7 and the second belt conveyor section 12 share a belt drive unit 6. The belt drive unit 6 synchronously drives the two belt conveyor sections, so that the two belt conveyor sections operate continuously at the same linear speed, ensuring that the slab is conveyed smoothly without speed difference.

[0046] Regarding the implementation of the belt drive 6 synchronously driving two belt conveyor sections, in some embodiments, the two belt conveyor sections adopt a segmented conveyor belt structure, such as... Figure 3 As shown, the first belt conveyor section 7 includes a first conveyor belt, a drive roller 5, and at least one first steering roller 14. The first conveyor belt forms a closed loop around the drive roller 5 and each of the first steering rollers 14. The second belt conveyor section 12 includes a second conveyor belt, a driven roller 13, and at least one second steering roller 17. The second conveyor belt forms a closed loop around the driven roller 13 and each of the second steering rollers 17. The belt drive 6 is drivenly connected to the drive roller 5. One of the first steering rollers 14 and one of the second steering rollers 17 are drivenly connected through a synchronous transmission member 18. The belt drive 6 may be a belt conveyor reducer, and the synchronous transmission member 18 may be, but is not limited to, a synchronous belt, a chain, a drive shaft, etc. During operation, the belt drive 6 drives the active roller 5 of the first belt conveyor section 7 to rotate, causing the first conveyor belt to run in a closed loop. The synchronous transmission 18 drives the connected first guide roller 14 and second guide roller 17 to rotate synchronously, thereby driving the second conveyor belt to run in a closed loop with the driven roller 13. Thus, the first and second conveyor belts share a set of driving power and operate continuously and synchronously at the same linear speed. The slab is smoothly conveyed to the pressure roller mechanism by the first / second conveyor belt, and after being pressed, it is sent out by the second / second conveyor belt. The conveying speed is consistent throughout the process with no speed difference. The two conveyor belt sections are each independently closed-loop, and the guide rollers can be arranged as needed, which facilitates integration with the pressure roller mechanism and adapts to different installation spaces and production line layouts.

[0047] In other embodiments, the two belt conveyor sections may also adopt a continuous conveyor belt structure, such as... Figure 4 As shown, the first belt conveyor section 7 and the second belt conveyor section 12 use continuous conveyor belts. The first belt conveyor section 7 includes a drive roller 5 and at least one first steering roller 14. The second belt conveyor section 12 includes a driven roller 13 and at least one second steering roller 17. The belt drive unit 6 is drivenly connected to the drive roller 5. The drive roller 5, the first steering roller 14, the second steering roller 17, and the driven roller 13 are drivenly connected by the conveyor belt, and the conveyor belt is located below the lower pressure roller 2 at the corresponding position. During operation, the belt drive unit 6 drives the drive roller 5 to rotate, driving the continuous conveyor belt to run in a closed loop. The slab is conveyed from the front section of the conveyor belt to the top of the lower pressure roller 2, and after being pressed by the upper and lower pressure rollers, it is sent out by the rear section of the conveyor belt. The conveyor belt is continuous, uninterrupted, and at a consistent speed throughout the entire process, ensuring smooth and continuous conveying. Furthermore, the conveyor belt is turned at the lower pressure roller 2 by the first steering roller 14 and the second steering roller 17, allowing the conveyor belt to pass under the lower pressure roller 2, thus ensuring that the conveying and pressing processes do not interfere with each other.

[0048] Because there is a certain gap between the lower pressure roller 2 and the first guide roller 14 and the second guide roller 17, to avoid damage to the slab during the rolling process due to excessive gaps, a first transition plate 19 and a second transition plate 20 are respectively provided on both sides of the lower pressure roller 2, connecting to the conveying surfaces of the first belt conveyor section 7 and the second belt conveyor section 12. The first transition plate 19 and the second transition plate 20 fill the gap between the lower pressure roller 2 and the two guide rollers, so that the slab is continuously supported throughout the process, achieving a smooth connection between the belt conveyor surface and the roller surface of the lower pressure roller 2. The slab is conveyed smoothly without jamming, avoiding slab bending and effectively preventing slab warping, cracking, and breakage, ensuring slab integrity and stable roll forming quality. Further preferably, the gap between the first transition plate 19 and the second transition plate 20 is equal to the width of the contact surface between the lower pressure roller 2 and the slab.

[0049] Further optimize the above technical solutions, such as Figure 1 and Figure 7 As shown, the belt conveyor mechanism also includes a belt tensioning assembly 4 for tensioning the conveyor belt. The belt tensioning assembly 4 is disposed on the first belt conveyor section 7 and / or the second belt conveyor section 12, and is used to adjust the tension of the conveyor belt and correct deviation.

[0050] In some embodiments, such as Figure 6 As shown, the belt tensioning assembly 4 includes a tension adjusting roller 27 and adjusting modules disposed at both ends of the tension adjusting roller 27. Each adjusting module includes an adjusting handwheel 30, a lead screw 29, a nut slide 28, and an adjusting mounting base 31. The end of the tension adjusting roller 27 is mounted on the nut slide 28. The nut slide 28 is threaded onto the lead screw 29. The lead screw 29 is rotatably mounted on the adjusting mounting base 31. The adjusting mounting base 31 is fixed on the frame 1 and restricts the axial movement of the lead screw 29, so that the lead screw 29 can only rotate and cannot move axially. The adjusting handwheel 30 is connected to the end of the lead screw 29 and is used to drive the lead screw 29 to rotate. When tensioning or correction of belt misalignment is required, rotating the adjusting handwheel 30 drives the lead screw 29 to rotate, and through the threaded transmission, the nut slide 28 moves axially along the lead screw 29, which in turn drives the tension adjusting roller 27 to move back and forth (i.e., back and forth along the conveyor belt transmission direction), changing the wrap angle and tension of the conveyor belt, thereby realizing the adjustment of the conveyor belt tension and correction of belt misalignment; the two end adjustment modules can be adjusted synchronously or independently to adapt to different misalignment conditions.

[0051] The belt conveyor with pressure roller device provided in this embodiment can directly replace the transition section conveyor in the existing calcium silicate board production line. It can be installed between the receiving section belt conveyor and the cross-cutting section belt conveyor to add new functions and realize the function of pressing low-density board or patterned decorative board. In this way, each board blank that originally passed directly can be pressed. It can be conveyed and pressed at the same time, and there is no need to slow down and stop, so it will not affect the production cycle.

[0052] 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 conveyor with a pressure roller device, characterized in that: The device includes a frame and a belt conveyor mechanism and a pressure roller mechanism mounted on the frame. The belt conveyor mechanism includes a first belt conveyor section and a second belt conveyor section. The pressure roller mechanism includes an upper pressure roller and a lower pressure roller arranged opposite to each other, and a roller drive assembly that drives the upper pressure roller and the lower pressure roller to rotate synchronously in opposite directions. The lower pressure roller is located between the first belt conveyor section and the second belt conveyor section, and the top of the roller surface of the lower pressure roller is flush with the conveying surfaces of the first belt conveyor section and the second belt conveyor section. The upper pressure roller is connected to a lifting drive assembly that drives its lifting and lowering.

2. The belt conveyor with pressure roller device as described in claim 1, characterized in that: The upper pressure roller is provided with cleaning components on both sides for cleaning the material adhering to the roller surface.

3. The belt conveyor with pressure roller device as described in claim 2, characterized in that: The dust removal assembly includes a brush and a telescopic drive component. The brush is arranged parallel to the axis of the upper pressure roller, and the movable end of the telescopic drive component drives the brush to selectively adhere to or move away from the surface of the upper pressure roller.

4. The belt conveyor with pressure roller device as described in claim 1, characterized in that: The upper pressure roller is detachably mounted on the frame via an upper pressure roller mounting bracket. The upper pressure roller is a smooth roller or an embossed roller with a patterned surface.

5. The belt conveyor with pressure roller device as described in claim 4, characterized in that: The upper pressure roller is slidably connected to the upper pressure roller mounting frame. The upper pressure roller mounting frame is provided with a lifting detection switch for detecting the lifting limit position of the upper pressure roller and an adjustment scale for calibrating the pressing thickness of the upper pressure roller.

6. The belt conveyor with pressure roller device as described in claim 1, characterized in that: The lower pressure roller is provided with a first transition plate and a second transition plate on both sides, which are connected to the conveying surfaces of the first belt conveyor section and the second belt conveyor section, respectively. The gap between the first transition plate and the second transition plate is equal to the width of the contact surface between the lower pressure roller and the slab.

7. The belt conveyor with pressure roller device as described in claim 1, characterized in that: The first belt conveyor section and the second belt conveyor section share a single belt drive unit.

8. The belt conveyor with pressure roller device as described in claim 7, characterized in that: The first belt conveyor section includes a first conveyor belt, a drive roller, and at least one first steering roller, with the first conveyor belt forming a closed loop around the drive roller and each of the first steering rollers; the second belt conveyor section includes a second conveyor belt, a driven roller, and at least one second steering roller, with the second conveyor belt forming a closed loop around the driven roller and each of the second steering rollers; the belt drive is drivenly connected to the drive roller, and one of the first steering rollers and one of the second steering rollers are drivenly connected through a synchronous transmission component.

9. The belt conveyor with pressure roller device as described in claim 7, characterized in that: The first belt conveyor section and the second belt conveyor section use continuous conveyor belts. The first belt conveyor section includes a drive roller and at least one first steering roller. The second belt conveyor section includes a driven roller and at least one second steering roller. The belt drive is connected to the drive roller. The drive roller, the first steering roller, the second steering roller, and the driven roller are connected to each other by the conveyor belt. The conveyor belt is located below the lower pressure roller at the position corresponding to the lower pressure roller.

10. The belt conveyor with pressure roller device as described in claim 1, characterized in that: The belt conveyor mechanism further includes a belt tensioning assembly for tensioning the conveyor belt. The belt tensioning assembly is disposed in the first belt conveyor section and / or the second belt conveyor section. The belt tensioning assembly includes a tension adjusting roller and adjusting modules disposed at both ends of the tension adjusting roller. Each adjusting module includes an adjusting handwheel, a lead screw, a nut slide, and an adjusting mounting seat. The tension adjusting roller is mounted on the nut slide. The nut slide is threaded onto the lead screw. The lead screw is rotatably mounted on the adjusting mounting seat. The adjusting mounting seat is fixed to the frame and restricts the axial movement of the lead screw. The adjusting handwheel is connected to the end of the lead screw.

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