PVC (polyvinyl chloride) foam board based on material cutting and embossing process and preparation method of PVC foam board

Abstract

The invention provides a PVC foam board based on a cutting and embossing process and a preparation method of the PVC foam board, and belongs to the technical field of PVC foam board processing. Comprising a front conveyor, a butt joint conveyor is arranged at the rear end of the front conveyor, a displacement lifting module is arranged at the upper end of the front conveyor, a mounting module is arranged at the upper end of the displacement lifting module, and an arc cover is arranged in the middle of the upper end of the mounting module. According to the embossing machine, the adjusting module is arranged, the multiple different embossing modules are installed on the outer side of the adjusting module, when adjustment is needed, the adjusting module can be driven to rotate by starting the rotating module, and the needed embossing module is rotated to move to the bottommost portion and makes contact with and is engaged with a transmission wheel in the sliding module to drive the embossing work to be started; compared with a traditional embossing structure needing to be disassembled and replaced for different patterns, only the position of the sliding module needs to be adjusted each time, more time and labor are saved, and particularly, the efficiency is higher when embossing work is conducted on PVC foaming plates of different batches and different patterns.

Description

Technical Field

[0001] The invention relates to the technical field of PVC foam board processing, in particular to a PVC foam board based on a cutting and embossing process and a preparation method thereof. Background Art

[0002] PVC foam board is a fireproof material made from polyvinyl chloride. It is primarily used as a lightweight indoor partition material, soundproofing for audio-visual spaces, fireproofing, packaging for refrigeration and air conditioning projects, roof insulation, and furniture interior materials. It offers moisture resistance, weather resistance, impact resistance, heat insulation, acid and alkali corrosion resistance, and flame resistance.

[0003] At present, in the production and preparation process of PVC foam board, in order to improve the appearance and texture of the product while giving it more functionality and practical value, it is necessary to perform surface embossing treatment on it. Most of the existing PVC foam board surface embossing adopts the roller processing method, such as a PVC blister sheet laminating device disclosed in Chinese patent application publication number CN214729992U. Although the PVC blister sheet laminating device places one end of the PVC blister sheet into the locking mechanism for fixing, the PVC blister sheet is fixed by pulling the fixing ring down through the cooperation of the air pipe and the connecting block, thereby facilitating the placement of the PVC blister sheet into the laminating area, and there is no need to fix the PVC blister sheet with knobs and bolts in turn, thereby improving efficiency and saving time and money. However, in the actual production process, due to different customer needs, the embossing patterns on the surface of the PVC foam board are also different, which requires customization of different embossing rollers for embossing. The embossing work of traditional equipment mostly adopts single-roller embossing. Each replacement of the embossing roller with a different pattern is very time-consuming, cumbersome and affects efficiency. Secondly, if the newly produced PVC foam board is preheated directly on the production line with a hot air blower, since the power of the hot air blower is generally high, it will increase a lot of energy consumption, and there will also be problems with heat control. Once overheated, it is easy to cause the preheating surface of the foam board to turn yellow. Therefore, in response to the above-mentioned problems, the present application provides a PVC foam board based on a cutting embossing process and a preparation method thereof to meet the needs. Summary of the Invention

[0004] (1) Technical problems solved In response to the shortcomings of the existing technology, the present invention provides a PVC foam board based on a cutting and embossing process and a preparation method thereof, which solves the problem that the existing PVC foam board needs to frequently disassemble and replace the pressing roller when meeting different customers and different embossing requirements, which is not only time-consuming and labor-intensive, but also affects efficiency. Secondly, the energy consumption is increased when the hot air blower is preheated independently, and the heat is difficult to control. Too high a temperature can easily cause the preheating surface to turn yellow.

[0005] (2) Technical solution In order to solve the above technical problems, the present invention provides the following technical solutions: The PVC foam board based on the cutting and embossing process includes a front conveyor, a docking conveyor is provided at the rear end of the front conveyor, a displacement lifting module is provided at the upper end of the front conveyor, an installation module is provided at the upper end of the displacement lifting module, an arc cover is provided in the middle of the upper end of the installation module, a preheating module is provided on the front side of the displacement lifting module, a rotation module is provided on the left side of the upper end of the installation module, adjustment modules are provided on the left and right sides of the outer end of the rotation module, an embossing module is provided in the middle of the adjustment module, a winding insulation curtain is provided on the front and rear sides of the upper end of the installation module, a sliding module is provided in the lower middle part of the inner side of the displacement lifting module, a servo motor is provided above the front end of the front conveyor, and a screw is provided on the inner side of the upper end of the front conveyor.

[0006] Preferably, the displacement lifting module includes a displacement seat, a telescopic column, a buffer pad, a slot block, a slider and a sliding door. Telescopic columns are provided on the left and right sides of the upper end of the displacement seat, a buffer pad is provided in the middle of the upper end of the displacement seat, slot blocks are provided on the left and right sides of the front end of the displacement seat, a slider is provided in the middle of the lower end of the displacement seat, and a sliding door is provided on the inner side of the rear end of the displacement seat.

[0007] Preferably, the mounting module includes a rectangular frame, a protrusion, a positioning hole and a vertical plate, the left and right sides of the upper end of the rectangular frame are provided with protrusions, the front and rear sides of the protrusion are provided with positioning holes, and the vertical plates are symmetrically distributed on the front and rear sides of the upper end of the rectangular frame.

[0008] Preferably, the arc cover includes a cover plate, a convex plate, a fixed plate and a heat recovery port. Convex plates are provided on the left and right sides of the lower end of the cover plate, fixed plates are provided above the front and rear sides of the convex plate, and heat recovery ports are opened on the left and right sides of the upper end of the cover plate.

[0009] Preferably, the preheating module includes a preheating box, a connecting rod, a recovery heater, a sealing plate and a media tube. A connecting rod is provided on the front side of the outer end of the preheating box, a recovery heater is provided inside the preheating box, a sealing plate is provided at the upper end of the preheating box, and a media tube is arranged inside the recovery heater.

[0010] Preferably, the rotating module includes a rotating motor, a central shaft, an anti-friction bearing, a liner tightening ring and reinforcement bolts. The front end of the rotating motor is provided with a central shaft, and anti-friction bearings are provided on the left and right sides of the outer end of the central shaft. The front side of the anti-friction bearing is provided with a liner tightening ring, and the outer end of the liner tightening ring is provided with reinforcement bolts in a ring shape.

[0011] Preferably, the adjustment module includes an outer ring block, an inner ring block, a reinforcement hole, an annular hole and meshing teeth. The inner side of the outer ring block is provided with an inner ring block, a reinforcement hole is opened in the middle of the inner side of the inner ring block, annular holes are distributed in an annular manner on the outer side of the front end of the outer ring block, and meshing teeth are provided at the contact ends of the outer ring block and the inner ring block.

[0012] Preferably, the embossing module includes an embossing roller, a sleeve, an embossing shaft, a guide wheel and a reinforcement ring. The left and right sides of the outer end of the embossing roller are provided with a sleeve, the inner side of the embossing roller is provided with an embossing shaft, the left and right sides of the outer end of the embossing shaft are sleeved with guide wheels, and the front and rear sides of the guide wheel are provided with reinforcement rings.

[0013] Preferably, the sliding module includes a sliding plate, a vertical block, a transmission motor, a transmission wheel and a positioning pin. The front side of the upper end of the sliding plate is provided with a vertical block, the inner side of the middle part of the vertical block is provided with a transmission motor, the front end of the transmission motor is provided with a transmission wheel, and the middle part of the upper end of the vertical block is provided with a positioning pin.

[0014] The preparation method of the PVC foam board based on the cutting and embossing process comprises the following steps: Step 1: First, the servo motors symmetrically distributed at the front and rear ends of the front conveyor and the docking conveyor are turned on to drive the screws set on the inner side of the upper ends of the front conveyor and the docking conveyor to start rotating, and the displacement lifting modules located in different areas in the front and back are moved to the appropriate position according to the embossing requirements and stopped; Step 2: Turn on the rotary motor in the rotary module to drive the adjustment module to start rotating. Due to the meshing teeth set at the contact ends of the outer ring block and the inner ring block of the adjustment module, the inner ring block will drive the outer ring block to rotate during the rotation process, so that the embossing rollers with different models installed in a circular distribution on the outer side of the front end of the outer ring block will rotate. Then, according to the embossing requirements, the embossing roller installed with the model to be used will be rotated to the lower position and then stopped; Step 3: Open the sliding door in the symmetrically distributed displacement lifting module, push the left and right sliding modules installed on the inner side to move to the opposite side, when the transmission wheels in the left and right sliding modules contact the guide wheels installed on the left and right ends of the embossing roller, the two form a meshing and holding angle, and then connect the line connector installed on the right end of the embossing roller to the external power supply to power the built-in heating rod of the embossing roller, thereby heating the embossing roller; Step 4: While heating the embossing roller, the winding motor of the winding thermal insulation curtain is powered to move the winding thermal insulation curtain downward along the card slot block in the displacement lifting module, and block the two sides of the frame structure formed by the displacement lifting module, the installation module and the arc cover to block the heat generated by the heating of the embossing roller and prevent it from leaking out; Step 5. After the internal heating of the frame structure formed by the displacement lifting module, the installation module and the arc cover is completed, since the arc cover is connected to the preheating module through a conveying pipeline, the excess hot air flow can be introduced into the preheating module and absorbed and stored by the recovery heater inside the preheating box. The stored heat can heat the air inside the preheating box. When the PVC foam board passes below, the hot air will preheat the upper embossed surface of the PVC foam board; Step 6. After the preheated PVC foam board enters the frame structure formed by the displacement lifting module, the installation module and the arc cover, the transmission motor drives the transmission wheel to rotate, and the transmission wheel and the guide wheel engage with each other, thereby driving the embossing roller to emboss the passing PVC foam board.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects: In the above scheme, multiple embossing modules of different shapes can be installed on the outside of the adjustment module through the setting. Later, when adjustment is needed, it is only necessary to turn on the rotating motor in the rotating module to drive the adjusting module to rotate, and the embossing module to be used is rotated to the bottom, and contacts with the transmission wheel driven by the transmission motor in the sliding module, and then it can rotate to start the embossing work. Compared with traditional embossing, which requires disassembly and replacement of the embossing structure for different patterns, it is only necessary to adjust the position of the sliding module before each replacement, which will be faster and save time and effort, especially when embossing PVC foam boards of different batches and different patterns. The efficiency will be higher.

[0016] The arc cover is set up to form a frame structure with openings on only two sides together with the displacement lifting module and the installation module. In conjunction with the symmetrically installed rolling insulation curtain, the embossing work is carried out in a relatively closed environment, which blocks the heat generated by the heating in the embossing module and prevents the heat from leaking out. The arc cover and the preheating module are then connected to each other through a pipe, and the excess heat enters the preheating module along the conveying pipeline to heat the medium pipe in the recovery heater. The hot air flow inside the preheating box is then discharged from the lower opening to preheat the embossed surface of the PVC foam board passing through it, thereby realizing the recovery and utilization of excess heat in the embossing module. At the same time, the embossed surface of the PVC foam board is preheated by absorbing heat and heating through the medium pipe, and the heat will be easier to control and safer.

[0017] By setting up the front conveyor and the docking conveyor, two sets of embossing structures can be installed at the upper ends of the two. When encountering more complex embossing shapes and requirements, a staged embossing process can be formed before and after, relying on two rounds of embossing to achieve the final forming effect. At the same time, through the set servo motor and screw, the position changes of the two sets of embossing structures can also be adjusted to make them better adapt to different embossing requirements.

[0018] In summary, the present invention has the advantages of being able to quickly replace the embossing structure when embossing different patterns is required. At the same time, the preheating method of the foam board is improved, making the temperature generated more controllable and reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the three-dimensional assembly of the displacement and lifting module, the installation module, the adjustment module and the embossing module of the present invention; Figure 3 This is a schematic diagram of the three-dimensional structure of the displacement lifting module of the present invention; Figure 4 This is an exploded schematic diagram of the three-dimensional structure of the displacement lifting module and the installation module of the present invention; Figure 5 This is a schematic diagram of the three-dimensional structure of the arc cover of the present invention; Figure 6 This is a schematic diagram of the three-dimensional structure of the rotating module of the present invention; Figure 7 This is a schematic diagram of the three-dimensional structure of the adjustment module of the present invention; Figure 8 This is a schematic diagram of the three-dimensional structure of the embossing module of the present invention; Figure 9 This is a schematic diagram of the three-dimensional structure of the sliding module of the present invention; Figure 10 This is an exploded schematic diagram of the three-dimensional structure of the preheating module of the present invention; Figure 11 The present invention is attached Figure 1 A schematic diagram of the partially enlarged structure at center A; Figure 12 The present invention is attached Figure 1 A schematic diagram of the partially enlarged structure at point B in the middle; Figure 13 The present invention is attached Figure 3 Schematic diagram of the partially enlarged structure at point C in the middle.

[0020] [Reference Signs] 1. Front conveyor; 2. Docking conveyor; 3. Displacement lifting module; 4. Installation module; 5. Arc cover; 6. Preheating module; 7. Rotation module; 8. Adjustment module; 9. Embossing module; 10. Winding insulation curtain; 11. Sliding module; 12. Servo motor; 13. Screw; 301. Displacement seat; 302. Telescopic column; 303. Buffer pad; 304. Slot block; 305. Slider; 306. Sliding door; 401. Rectangular frame; 402. Bump; 403. Positioning hole; 404. Vertical plate; 501. Cover plate; 502. Bump plate; 503. Fixed plate; 504. Heat recovery port ;601, preheating box; 602, connecting rod; 603, recovery heater; 604, sealing plate; 605, medium tube; 701, rotating motor; 702, central shaft; 703, anti-friction bearing; 704, lining tightening ring; 705, reinforcement bolt; 801, outer ring block; 802, inner ring block; 803, reinforcement hole; 804, annular hole; 805, meshing teeth; 901, embossing roller; 902, sleeve; 903, embossing shaft; 904, guide wheel; 905, reinforcement ring; 111, sliding plate; 112, vertical block; 113, transmission motor; 114, transmission wheel; 115, positioning pin.

[0021] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the appended claims. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The following describes in detail the PVC foam board based on the cutting and embossing process and the preparation method thereof provided by the present invention, in conjunction with the accompanying drawings and specific embodiments. It is also noted that, in order to make the embodiments more detailed, the following embodiments are best and preferred embodiments, and those skilled in the art may also adopt other alternative methods for implementing certain known technologies. Furthermore, the accompanying drawings are only for the purpose of describing the embodiments in more detail and are not intended to limit the present invention in any specific way.

[0024] Implementation 1, such as Figures 1 to 13As shown, an embodiment of the present invention provides a PVC foam board based on a cutting and embossing process, comprising a front conveyor 1, a docking conveyor 2 being provided at the rear end of the front conveyor 1, a displacement and lifting module 3 being provided at the upper end of the front conveyor 1, a mounting module 4 being provided at the upper end of the displacement and lifting module 3, an arc cover 5 being provided at the middle of the upper end of the mounting module 4, a preheating module 6 being provided at the front side of the displacement and lifting module 3, a rotation module 7 being provided at the left side of the upper end of the mounting module 4, adjustment modules 8 being provided at the left and right sides of the outer end of the rotation module 7, an embossing module 9 being provided at the middle of the adjustment module 8, a winding insulation curtain 10 being provided at the front and rear sides of the upper end of the mounting module 4, a sliding module 11 being provided at the lower middle part of the inner side of the displacement and lifting module 3, a servo motor 12 being provided above the front end of the front conveyor 1, and a screw 13 being provided at the inner side of the upper end of the front conveyor 1.

[0025] The rear end of the front conveyor 1 and the front end of the docking conveyor 2 are connected in a straight line, and transverse slots are opened on both the left and right upper ends of the two. The displacement lifting modules 3 are symmetrically distributed on the left and right sides, and the lower ends of the symmetrically distributed displacement lifting modules 3 extend to the transverse slots opened on the upper ends of the front conveyor 1 and the docking conveyor 2, and are threaded through by screws 13. The upper end of the displacement lifting module 3 and the contact end of the installation module 4 are reinforced with bolts to form an integrated structure, and the contact end of the arc cover 5 and the installation module 4 is reinforced with screws. The arc cover 5 is fixed, and the middle of the lower end on both sides of the arc cover 5 fits with the protruding structure on the upper end of the installation module 4. The preheating module 6 and the arc cover 5 are connected through the conveying pipeline. The preheating module 6 is connected and fixed to the displacement lifting module 3. The middle of the lower end of the preheating module 6 extends to the inside of the transverse slot opened at the upper end of the front conveyor 1 and the docking conveyor 2, and is threaded through by the screw 13. The front end of the rotating module 7 passes through the protruding structures on the left and right sides of the upper end of the installation module 4. The adjusting modules 8 are symmetrically distributed on the left and right sides. The adjusting modules 8 and The rotating modules 7 are in a socket installation structure, and a fixed treatment is done at the socket contact end, so that the two form an integrated structure. The embossing module 9 is distributed in a ring shape on the relative inner side of the symmetrically distributed adjustment module 8, and the left and right ends of the embossing module 9 pass through the interior of the symmetrically distributed adjustment module 8 and extend to the outside. The winding insulation curtain 10 is symmetrically distributed front and back. The winding insulation curtain 10 is an integrated structure consisting of a curtain cloth, a winding roller and a winding motor. A slot is opened in the installation module 4 area directly below the winding insulation curtain 10, and the sliding module 11 is installed It is installed in the lower middle part of the inner side of the displacement lifting module 3, and two partitions are provided at the left and right ends of the sliding module 11 to separate the regional space inside the displacement lifting module 3. The servo motor 12 is installed on both sides above the front end of the front conveyor 1 and on both sides above the rear end of the docking conveyor 2, and the transmission end of the servo motor 12 and the screw 13 are an integrated structure with each other. The screw 13 is installed inside the transverse slot opened at the upper end of the front conveyor 1 and the docking conveyor 2, and bearings are installed in the front and rear contact walls of the two.

[0026] Through the provided adjustment module 8, multiple embossing modules 9 of different shapes can be installed on its outside. Later, when adjustment is needed, it is only necessary to turn on the rotating motor 701 in the rotating module 7 to drive the adjusting module 8 to rotate, and the embossing module 9 to be used is rotated to the bottom, and contacts with the transmission wheel 114 driven by the transmission motor 113 in the sliding module 11, and then it can rotate to start the embossing work. Compared with traditional embossing, which requires disassembly and replacement of the embossing structure for different patterns, it is only necessary to adjust the position of the sliding module 11 before each replacement, which will be faster and save time and effort, especially when embossing PVC foam boards of different batches and different patterns. The efficiency will be higher.

[0027] By setting the arc cover 5, a frame structure with only two-side openings is formed together with the displacement lifting module 3 and the installation module 4. In conjunction with the symmetrically installed winding insulation curtain 10, the embossing work is carried out in a relatively closed environment, and the heat generated by the heating in the embossing module 9 is blocked, so that the heat is not easily leaked. Then the arc cover 5 and the preheating module 6 are interconnected through a pipeline, and the excess heat will enter the preheating module 6 along the transmission pipeline, and heat the medium pipe 605 in the recovery heater 603. Then the hot air flow inside the preheating box 601 is discharged from the lower end opening to preheat the embossed surface of the PVC foam board passing through, thereby realizing the recovery and utilization of excess heat in the embossing module 9. At the same time, the embossed surface of the PVC foam board is preheated by absorbing heat and heating through the medium pipe 605, and the heat will be easier to control and safer.

[0028] Implementation 2, such as Figures 2 to 4 As shown, in this embodiment, the displacement and lifting module 3 includes a displacement seat 301, a telescopic column 302, a buffer pad 303, a slot block 304, a slider 305 and a sliding door 306. The telescopic columns 302 are provided on the left and right sides of the upper end of the displacement seat 301, the buffer pad 303 is provided in the middle of the upper end of the displacement seat 301, the slot blocks 304 are provided on the left and right sides of the front end of the displacement seat 301, the slider 305 is provided in the middle of the lower end of the displacement seat 301, and the sliding door 306 is provided on the inner side of the rear end of the displacement seat 301; the installation module 4 includes a rectangular frame 401, a protrusion 402, a positioning hole 403 and a vertical plate 404. The protrusions 402 are provided on the left and right sides of the upper end of the rectangular frame 401, the positioning holes 403 are provided on the front and back sides of the protrusion 402, and the vertical plates 404 are symmetrically distributed on the front and back sides of the upper end of the rectangular frame 401.

[0029] The interior of the displacement seat 301 is a hollow structure. The lower end of the telescopic column 302 extends into the interior of the displacement seat 301. The telescopic column 302 is driven by hydraulic pressure to perform lifting work. This is a well-known technology. Therefore, it will not be described in detail in this article. The buffer pad 303 is installed in the middle area of ​​the lower end of the two telescopic columns 302. The buffer pad 303 is made of rubber material and is used to alleviate the force when the rectangular frame 401 contacts the displacement seat 301, playing a protective role. The slot block 304 and the slider 305 are integrated with the displacement seat 301. Structure, there are four slot blocks 304 symmetrically distributed on the left and right, two on each side, the slot blocks 304 on the opposite sides are used to guide the winding of the thermal insulation curtain 10, the middle of the slider 305 is provided with a through hole, the diameter of the through hole is adapted to the screw 13, the sliding door 306 consists of two left and right blocks, and the two sliding doors 306 are staggered in the front and back; the rectangular frame 401 and the protrusion 402 are an integrated structure, the positioning holes 403 are symmetrically distributed, and the vertical plates 404 are symmetrically distributed in four pieces, two on each side of the front and back, which are used for the installation of the winding thermal insulation curtain 10.

[0030] The displacement seat 301 is provided with two partitions in the middle to separate the three areas into left, right and middle. The sliding module 11 is installed in the middle. The contact ends of the sliding module 11 and the two partitions are in a sliding installation structure, which is convenient for the front and rear positions of the sliding module 11 so that the subsequent sliding module 11 and the guide wheel 904 in the embossing module 9 can be engaged with each other. The left and right areas inside the displacement seat 301 are used to install the telescopic column 302 and the hydraulic structure. When it is necessary to maintain the embossing module 9 and clean the garbage below, the telescopic column 302 can be controlled to extend to lift the rectangular frame 401.

[0031] Implementation 3, such as Figure 1 and Figure 5 As shown, in this embodiment, the arc cover 5 includes a cover plate 501, a protruding plate 502, a fixed plate 503 and a heat recovery port 504. The protruding plates 502 are provided on the left and right sides of the lower end of the cover plate 501, and the fixed plates 503 are provided above the front and rear sides of the protruding plate 502. The heat recovery port 504 is opened on the left and right sides of the upper end of the cover plate 501.

[0032] A semicircular cavity is provided on the inner side of the lower end of the cover plate 501 . The cover plate 501 , the convex plate 502 and the fixed plate 503 form an integrated structure. There are two heat recovery ports 504 symmetrically distributed on the left and right.

[0033] The heat recovery port 504 is provided to discharge the remaining heat in the semicircular cavity inside the cover plate 501. The heat recovery port 504 and the preheating module 6 are connected through a transmission pipeline to recover and reuse the heat. Compared with the traditional direct heating equipment for preheating before embossing, it reduces energy consumption and saves costs.

[0034] Implementation 4, such as Figure 1 and Figure 10 As shown, in this embodiment, the preheating module 6 includes a preheating box 601, a connecting rod 602, a recovery heater 603, a sealing plate 604 and a medium tube 605. The front side of the outer end of the preheating box 601 is provided with a connecting rod 602, the interior of the preheating box 601 is provided with a recovery heater 603, the upper end of the preheating box 601 is provided with a sealing plate 604, and the interior of the recovery heater 603 is arranged with a medium tube 605.

[0035] A horizontal exhaust port is provided at the lower end of the preheating box 601. Two upper and lower cavities are provided inside the preheating box 601. A through groove is provided in the middle of the two cavities to allow the two cavities to communicate with each other. In addition, a recovery heater 603 is installed in the upper cavity, and a fan is installed in the lower cavity. The sealing plate 604 and the upper end of the preheating box 601 are reinforced by screws. The medium pipe 605 passes through the interior of the recovery heater 603, and the interior of the medium pipe 605 is injected with heat transfer oil.

[0036] Through the recovery heater 603, when the heat enters the preheating box 601 through the two openings at the upper end of the sealing plate 604, the heat is absorbed by the medium tube 605 distributed in the surrounding area of ​​the recovery heater 603, and then conducted to the bottom of the recovery heater 603 by the medium tube 605, heating the air inside the preheating box 601. The fan installed in the lower cavity inside the preheating box 601 draws the hot air flow and discharges it from the horizontal exhaust port opened at the lower end of the preheating box 601, preheating the embossed surface of the PVC foam board passing through. By recovering and utilizing the heat, energy consumption is reduced, costs are saved, and it is more environmentally friendly.

[0037] like Figure 2 and Figure 6 As shown, in this embodiment, the rotating module 7 includes a rotating motor 701, a central shaft 702, an anti-friction bearing 703, a liner tightening ring 704 and a reinforcement bolt 705. The front end of the rotating motor 701 is provided with a central shaft 702, and the left and right sides of the outer end of the central shaft 702 are provided with anti-friction bearings 703. The front side of the anti-friction bearing 703 is provided with a liner tightening ring 704, and the outer end of the liner tightening ring 704 is distributed with reinforcement bolts 705 in a ring shape.

[0038] The transmission end of the rotating motor 701 and the central shaft 702 are spliced ​​together to form an integrated structure. The anti-friction bearings 703 are symmetrically distributed to reduce the wear on the contact end with the installation module 4. The liner tightening rings 704 are symmetrically distributed, and there are four symmetrically distributed reinforcement bolts 705.

[0039] By setting the inner lining tightening ring 704, the inner ring block 802 installed on the central axis 702 can be tightened and reinforced to ensure the stability of the installation structure. Afterwards, when the rotating motor 701 drives the central axis 702 to rotate, the inner ring block 802 will also rotate with it, providing rotational power for the embossing module 9 to change different patterns.

[0040] Implementation 5, such as Figure 2 and Figure 7 As shown, in this embodiment, the adjustment module 8 includes an outer ring block 801, an inner ring block 802, a reinforcement hole 803, an annular hole 804 and meshing teeth 805. The inner side of the outer ring block 801 is provided with an inner ring block 802, a reinforcement hole 803 is opened in the middle of the inner side of the inner ring block 802, annular holes 804 are distributed in an annular manner on the outer side of the front end of the outer ring block 801, and meshing teeth 805 are provided at the contact ends of the outer ring block 801 and the inner ring block 802.

[0041] The adjustment module 8 has two groups symmetrically distributed on the left and right. The outer ring block 801 and the inner ring block 802 are engaged and transmitted through the meshing teeth 805 set at the contact end. The meshing teeth 805 are composed of internal tooth grooves distributed on the inner side of the outer ring block 801 and external teeth distributed on the outer end of the inner ring block 802. The diameter of the reinforcement hole 803 is adapted to the diameter of the central axis 702 in the rotation module 7, and there are eight annular holes 804 distributed in a ring.

[0042] Through the provided annular hole 804, eight groups of embossing modules 9 with different embossing shapes can be installed on the inner side. When different embossing shapes are needed later, it is only necessary to let the rotating module 7 drive the inner ring block 802 to rotate. After that, the meshing teeth 805 provided at the contact end of the inner ring block 802 and the outer ring block 801 transmit power, which will drive the outer ring block 801 to start rotating. When the outer ring block 801 rotates, it will also drive the eight groups of embossing modules 9 with different embossing shapes to rotate. When the required group of embossing modules 9 moves to the vertical angle below the outer ring block 801, it stops.

[0043] Implementation 6, such as Figure 2 and Figure 8 As shown, in this embodiment, the embossing module 9 includes an embossing roller 901, a sleeve 902, an embossing shaft 903, a guide wheel 904 and a reinforcement ring 905. The left and right sides of the outer end of the embossing roller 901 are provided with a sleeve 902, the inner side of the embossing roller 901 is provided with an embossing shaft 903, the left and right sides of the outer end of the embossing shaft 903 are sleeved with guide wheels 904, and the front and rear sides of the guide wheel 904 are provided with reinforcement rings 905.

[0044] Different embossing molds can be installed at the outer end of the embossing roller 901. The embossing roller 901 and the embossing shaft 903 are an integrated structure, and the interior of both is a hollow structure. An electric heating rod is installed inside the hollow structure. Heating the embossing roller 901 with an electric heating rod is a well-known technology. Therefore, it will not be described in detail in this article. There are two sleeves 902, guide wheels 904 and reinforcement rings 905, which are symmetrically distributed. The front end diameter of the sleeve 902 is compatible with the internal diameter of the annular hole 804.

[0045] Through the provided sleeve 902, the integrated structure consisting of the embossing roller 901 and the embossing shaft 903 is installed inside the outer side of the outer ring block 801 in the adjustment module 8. At the same time, when the integrated structure consisting of the embossing roller 901 and the embossing shaft 903 is driven by the mutual engagement of the guide wheel 904 and the transmission wheel 114, the sleeve 902 can also ensure the normal rotation of the integrated structure consisting of the embossing roller 901 and the embossing shaft 903 and reduce wear.

[0046] Implementation column 7, such as Figures 3 to 9 As shown, in this embodiment, the sliding module 11 includes a sliding plate 111, a vertical block 112, a transmission motor 113, a transmission wheel 114 and a positioning pin 115. The vertical block 112 is provided on the front side of the upper end of the sliding plate 111, the transmission motor 113 is provided on the inner side of the middle part of the vertical block 112, the transmission wheel 114 is provided at the front end of the transmission motor 113, and the positioning pin 115 is provided in the middle part of the upper end of the vertical block 112.

[0047] Horizontal bars are provided on the left and right sides of the outer end of the sliding plate 111 to facilitate the sliding of the sliding plate 111. A tightening hole is provided in the middle of the upper end of the sliding plate 111, and a hand-grabbing groove is provided on the rear side of the tightening hole. The sliding plate 111 and the vertical block 112 are an integrated structure. A circular hole is provided in the middle of the vertical block 112. The transverse diameter of the circular hole is adapted to the transverse diameter of the transmission motor 113. The transmission wheel 114 and the transmission end of the transmission motor 113 are an integrated mounting structure. The lower end of the locating pin 115 passes through the upper end of the vertical block 112 and extends to the inner side of the transmission motor 113.

[0048] The sliding plate 111 is provided with a horizontal bar at its outer end and a hand-grabbing groove on the rear side of the upper end, so that it is convenient to manually push and pull and adjust its position on the inner side of the lower end of the displacement lifting module 3. When it is necessary to contact the embossing module 9, the sliding plate 111 is pushed forward to allow the front end transmission wheel 114 to engage with the guide wheel 904 in the embossing module 9 to facilitate the transmission of embossing power. When a different embossing module 9 needs to be replaced later, the sliding plate 111 is pulled backward to separate the front end transmission wheel 114 from the guide wheel 904 in the embossing module 9.

[0049] The electrical components mentioned in this article are all connected to an external main controller and mains electricity, and the main controller can be a conventional known device such as a computer that performs control.

[0050] The preparation method of the PVC foam board based on the cutting and embossing process comprises the following steps when used; Step 1: First, the servo motors 12 symmetrically distributed at the front and rear ends of the front conveyor 1 and the docking conveyor 2 are turned on to drive the screws 13 arranged on the inner sides of the upper ends of the front conveyor 1 and the docking conveyor 2 to start rotating, and the displacement lifting modules 3 located in different front and rear areas are moved to appropriate positions according to the embossing requirements and stopped; Step 2: Turn on the rotary motor 701 in the rotary module 7 to drive the adjustment module 8 to start rotating. Due to the meshing teeth 805 provided on the contact ends of the outer ring block 801 and the inner ring block 802 of the adjustment module 8, the inner ring block 802 drives the outer ring block 801 to rotate during the rotation process, so that the embossing rollers 901 with different models installed in a circular distribution on the outer side of the front end of the outer ring block 801 rotate. Then, according to the embossing requirements, the embossing roller 901 with the model to be used is rotated to the lower position and then stopped. Step 3: Open the sliding door 306 in the symmetrically distributed displacement lifting module 3, and push the left and right sliding modules 11 installed on the inner side to move to opposite sides. When the transmission wheel 114 in the left and right sliding modules 11 and the guide wheels 904 installed on the left and right ends of the embossing roller 901 contact each other, the two form an engaging angle. Then, the line connector installed on the right end of the embossing roller 901 is connected to the external power supply to power the built-in heating rod of the embossing roller 901, thereby heating the embossing roller 901. Step 4: While heating the embossing roller 901, the winding motor of the winding heat insulation curtain 10 is powered to move the winding heat insulation curtain 10 downward along the card slot block 304 in the displacement lifting module 3, and block the two sides of the frame structure formed by the displacement lifting module 3, the installation module 4 and the arc cover 5 to block the heat generated by the heating of the embossing roller 901 and prevent it from leaking out; Step 5: After the internal heating of the frame structure formed by the displacement lifting module 3, the installation module 4 and the arc cover 5 is completed, since the arc cover 5 is connected to the preheating module 6 through the transmission pipeline, the excess hot air flow can be introduced into the preheating module 6, and absorbed and stored by the recovery heater 603 inside the preheating box 601. The stored heat can heat the air inside the preheating box 601. When the PVC foam board passes below, the hot air will preheat the upper embossed surface of the PVC foam board; Step 6. After the preheated PVC foam board enters the frame structure formed by the displacement lifting module 3, the installation module 4 and the arc cover 5, the transmission motor 113 drives the transmission wheel 114 to rotate, and the transmission wheel 114 and the guide wheel 904 engage with each other, thereby driving the embossing roller 901 to emboss the passing PVC foam board.

[0051] The working principle of the technical solution provided by the present invention is as follows: through the setting of the adjustment module 8, multiple embossing modules 9 of different shapes can be installed on the outside thereof. Later, when adjustment is needed, it is only necessary to turn on the rotating motor 701 in the rotating module 7 to drive the adjusting module 8 to rotate, and the embossing module 9 to be used is rotated to the bottom, and contacts with the transmission wheel 114 driven by the transmission motor 113 in the sliding module 11, and then it can rotate to start the embossing work. Compared with the traditional embossing that needs to disassemble and replace the embossing structure for different patterns, it is only necessary to adjust the position of the sliding module 11 before each replacement, which will be faster and save time and labor, especially when embossing PVC foam boards of different batches and different patterns. The efficiency will be higher; secondly, by setting the arc cover 5, together with the displacement lifting module 3 and the installation module 4, form a frame structure with only two-side openings, and cooperate with the symmetrically installed winding insulation curtain 10 to allow the embossing work to be carried out in a relatively closed environment, blocking the heat generated by the heating in the embossing module 9, so that the heat is not easily leaked, and then the arc cover 5 and the preheating module 6 are interconnected through a pipeline, and the excess heat will enter the preheating module 6 along the transmission pipeline, and heat the medium pipe 605 in the recovery heater 603. Then, the hot air flow inside the preheating box 601 is discharged from the lower end opening to preheat the embossed surface of the PVC foam board passing through, thereby realizing the recovery and utilization of excess heat in the embossing module 9. At the same time, the embossed surface of the PVC foam board is preheated by absorbing heat and heating through the medium pipe 605, and the heat will be easier to control and safer.

[0052] Structural design of embossing roller: Shaft core: The shaft core is the core component of the embossing roller, usually made of high-strength steel, used to support the weight of the embossing roller and transmit torque; Roller: The roller is the main working part of the embossing roller, used to carry the embossing die and perform the embossing work. The material and size of the roller are selected according to the embossing requirements.

[0053] Shape of embossing die: Flat: Flat embossing dies are used to emboss simple patterns, such as straight lines, curves, geometric figures, etc. Concave and convex: Concave and convex embossing dies are used to imprint patterns with a strong three-dimensional effect, such as relief and etching; Special shape: Special shape embossing dies are used to emboss special effect patterns, such as imitation leather and imitation fabric; Embossing die size: Width: The width of the embossing die should be selected according to the width of the PVC foam board; Height: The height of the embossing die should be selected according to the embossing depth; Spacing: The spacing of the embossing die should be selected according to the arrangement of the pattern; Arrangement of embossing dies: Regular arrangement: Regular arrangement means that the embossing dies are arranged according to a certain rule, such as uniform arrangement, symmetrical arrangement, etc. Irregular arrangement: Irregular arrangement means that the embossing dies are arranged according to irregular rules, such as random arrangement, gradient arrangement, etc.

[0054] Regular arrangement: Regular arrangement means that the embossing dies are arranged according to a certain rule, such as uniform arrangement, symmetrical arrangement, etc.

[0055] Irregular arrangement: Irregular arrangement means that the embossing dies are arranged according to irregular rules, such as random arrangement, gradient arrangement, etc.

[0056] Embossing Die: The embossing die is the core component of the embossing roller, used to form the desired pattern. The shape, size, and arrangement of the embossing die are designed according to the embossing requirements.

[0057] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0058] Specific structure of the heating device: Electric heating rods: This is the main heating method used in this invention. Electric heating rods are usually made of nickel-chromium alloy, which has good conductivity and oxidation resistance. The number and power of electric heating rods should be selected according to the size of the embossing roller and the embossing requirements; Thermostat: The thermostat controls the power and temperature of the heating rod, ensuring the temperature of the embossing roller remains within the set range. The thermostat can be digital or analog, and has overheat protection and power failure protection functions. Temperature sensor: The temperature sensor is used to monitor the temperature of the embossing roller and transmit the temperature signal to the temperature controller. The temperature sensor can be a thermocouple or a resistance thermometer with high accuracy and high reliability. Connecting wire: The connecting wire is used to connect the electric heating rod, thermostat and power supply; Heating device control mode: Manual control: The operator can manually adjust the set temperature of the thermostat according to the printing requirements; Automatic control: The thermostat can automatically adjust the power of the heating rod according to the feedback signal of the temperature sensor to ensure that the temperature of the embossing roller is stable within the set range; Heating rod power: The power of the heating rod should be selected according to the size of the embossing roller, the embossing depth and the embossing speed. If the power is too small, the required embossing temperature cannot be achieved; if the power is too large, it is easy to cause the embossing roller to overheat, affecting the embossing effect and the performance of the PVC foam board. Temperature control range: The temperature control range should be selected according to the material of the PVC foam board and the printing requirements; generally speaking, the printing temperature should be controlled below the melting point of the PVC foam board to avoid melting and deformation of the PVC foam board.

[0059] Connection method between heating rod and embossing roller: Threaded connection: The heating rod can be fixed on the shaft core of the embossing roller by threaded connection; Welding connection: The heating rod can be fixed to the roller body of the embossing roller by welding connection.

[0060] Drive mode selection: Hydraulic system: The hydraulic system has the advantages of large thrust, smooth movement, and easy control, and is suitable for driving large or heavy-loaded displacement lifting modules; Electric system: The electric system has the advantages of simple structure, easy maintenance, and low energy consumption. It is suitable for driving small or light-load displacement lifting modules; In the present invention, according to the actual situation, you can choose a hydraulic system or an electric system as the driving mode of the displacement lifting module; Hydraulic system: Hydraulic pump: The hydraulic pump is used to deliver hydraulic oil to the hydraulic cylinder to provide power for the hydraulic cylinder; Hydraulic cylinder: The hydraulic cylinder is used to drive the telescopic column to perform lifting and lowering movements; Hydraulic valve: Hydraulic valve is used to control the flow direction and flow of hydraulic oil, thereby controlling the action of the hydraulic cylinder; Hydraulic oil pipe: Hydraulic oil pipe is used to connect hydraulic pumps, hydraulic cylinders and hydraulic valves; Control device: The control device is used to control the action of the hydraulic pump, hydraulic valve and hydraulic cylinder to achieve precise control of the displacement lifting module; Hydraulic system control method: Manual control: The operator can control the direction and flow of hydraulic oil through the manual control valve, thereby controlling the action of the hydraulic cylinder; Automatic control: The control device can automatically control the actions of the hydraulic pump, hydraulic valve and hydraulic cylinder according to the set parameters to achieve precise control of the displacement lifting module; Electric system: Motor: The motor is used to drive the reducer and provide power for the telescopic column; Reducer: Reducer is used to reduce the speed of the motor and increase the output torque; Telescopic column: The telescopic column is used to drive the slider to move up and down; Control device: The control device is used to control the speed and direction of the motor to achieve precise control of the displacement lifting module; Electric system control method: Manual control: The operator can manually control the speed and direction of the motor through the control device, thereby controlling the movement of the slider; Automatic control: The control device can automatically control the speed and direction of the motor according to the set parameters to achieve precise control of the displacement lifting module.

[0061] Specific structure of the preheating module: Preheating box: The preheating box is a closed chamber that houses the recovery heater and media tubes and guides the hot air circulation.

[0062] Heater: A heat generator is a device used to absorb and store heat, usually made of metal, such as copper or stainless steel; a medium tube is set inside the heat generator to transfer heat.

[0063] Media pipe: The media pipe is a pipe with good thermal conductivity that is used to transfer heat from the recovery heater to the air in the preheating box. The media pipe is usually made of metal materials such as copper or aluminum.

[0064] Fan: The fan is used to blow the hot air in the preheating box to the PVC foam board to preheat it.

[0065] Connecting pipe: The connecting pipe is used to connect the arc cover and the preheating box to guide the hot air flow into the preheating box.

[0066] Control method of preheating module: Thermostat: The thermostat controls the temperature inside the preheating chamber to ensure the PVC foam board is fully preheated. The thermostat can be digital or analog and has overheat protection and power-off protection.

[0067] Temperature sensor: The temperature sensor is used to monitor the temperature inside the preheating box and transmit the temperature signal to the thermostat; the temperature sensor can be a thermocouple or a resistance thermometer, and has high precision and high reliability.

[0068] Control device: The control device is used to control the speed and direction of the fan to achieve the circulation of hot air and temperature adjustment.

[0069] Recycled heater material: The material of the recycled heater should have good thermal conductivity and high temperature resistance, such as copper or stainless steel.

[0070] Media tube dimensions: The size of the media tube should be selected according to the size of the preheating box and the heat demand. If the diameter of the tube is too small, the heat transfer efficiency will be affected; if the diameter of the tube is too large, it will take up too much space.

[0071] Hot air circulation method: The hot air can be circulated by natural convection or forced convection. Natural convection means that hot air rises and cold air falls, forming a natural circulation. Forced convection means that the fan blows the hot air to the PVC foam board and takes it away, forming a forced circulation.

[0072] Material selection and its thermal insulation effect: Asbestos cloth: Asbestos cloth has good thermal insulation and high temperature resistance, but it is brittle and needs to be replaced regularly.

[0073] Ceramic fiber cloth: Ceramic fiber cloth has excellent thermal insulation and high temperature resistance, but the price is higher.

[0074] Silicate fiber cloth: Silicate fiber cloth has good thermal insulation and high temperature resistance, and the price is moderate.

[0075] Stainless steel wire mesh: Stainless steel wire mesh has good high temperature resistance and corrosion resistance, but poor thermal insulation effect.

[0076] The material selection of the retractable thermal insulation curtain should be based on comprehensive considerations such as thermal insulation effect, high temperature resistance, corrosion resistance and cost.

[0077] Structural design of retractable thermal insulation curtain: Curtain: Curtain is the main component of the retractable thermal insulation curtain, used to block the flow of hot air; Winding roller: The winding roller is used to wind and unwind the cord; Winding motor: The winding motor is used to drive the winding roller to wind and unwind the curtain; Control device: The control device is used to control the speed and direction of the winding motor to achieve the winding and unwinding of the curtain; Control method of rolling thermal insulation curtain: Manual control: The operator can manually control the speed and direction of the winding motor through the control device, thereby controlling the winding and unwinding of the curtain; Automatic control: The control device can automatically control the speed and direction of the winding motor according to the set parameters to achieve the winding and unwinding of the curtain; The structural design of the retractable thermal insulation curtain should consider the following factors: Thermal insulation effect: The material and thickness of the curtain should ensure good thermal insulation effect; High temperature resistance: The material of the curtain should have good high temperature resistance to prevent deformation or damage at high temperatures; Corrosion resistance: The material of the curtain fabric should have good corrosion resistance to prevent corrosion or damage in harsh environments; Easy to operate: The winding and unfolding of the curtain should be quick and easy to use for the convenience of the operator.

[0078] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. PVC foam board based on cutting and embossing process, characterized in that: The invention comprises a front conveyor (1), wherein a docking conveyor (2) is provided at the rear end of the front conveyor (1), a displacement lifting module (3) is provided at the upper end of the front conveyor (1), a mounting module (4) is provided at the upper end of the displacement lifting module (3), an arc cover (5) is provided at the middle of the upper end of the mounting module (4), a preheating module (6) is provided at the front side of the displacement lifting module (3), a rotation module (7) is provided at the left side of the upper end of the mounting module (4), an adjustment module (8) is provided at the left and right sides of the outer end of the rotation module (7), an embossing module (9) is provided at the middle of the adjustment module (8), a retracting heat insulation curtain (10) is provided at the front and rear sides of the upper end of the mounting module (4), a sliding module (11) is provided at the lower middle part of the inner side of the displacement lifting module (3), a servo motor (12) is provided above the front end of the front conveyor (1), and a screw (13) is provided at the inner side of the upper end of the front conveyor (1).

2. The PVC foam board based on the cutting and embossing process according to claim 1, characterized in that: The displacement lifting module (3) comprises a displacement seat (301), a telescopic column (302), a buffer pad (303), a slot block (304), a slider (305) and a sliding door (306); the telescopic columns (302) are provided on the left and right sides of the upper end of the displacement seat (301); the buffer pad (303) is provided in the middle of the upper end of the displacement seat (301); the slot blocks (304) are provided on the left and right sides of the front end of the displacement seat (301); the slider (305) is provided in the middle of the lower end of the displacement seat (301); and the sliding door (306) is provided on the inner side of the rear end of the displacement seat (301).

3. The PVC foam board based on the cutting and embossing process according to claim 1, characterized in that: The mounting module (4) comprises a rectangular frame (401), a protrusion (402), a positioning hole (403) and a vertical plate (404); the protrusions (402) are provided on the left and right sides of the upper end of the rectangular frame (401); the positioning holes (403) are provided on the front and rear sides of the protrusion (402); and the vertical plates (404) are symmetrically distributed on the front and rear sides of the upper end of the rectangular frame (401).

4. The PVC foam board based on the cutting and embossing process according to claim 1, characterized in that: The arc cover (5) comprises a cover plate (501), a convex plate (502), a fixed plate (503) and a heat recovery port (504); the convex plates (502) are provided on the left and right sides of the lower end of the cover plate (501); the fixed plates (503) are provided above the front and rear sides of the convex plate (502); and the heat recovery port (504) is opened on the left and right sides of the upper end of the cover plate (501).

5. The PVC foam board based on the cutting and embossing process according to claim 1, characterized in that: The preheating module (6) comprises a preheating box (601), a connecting rod (602), a recovery heater (603), a sealing plate (604) and a medium tube (605). The front side of the outer end of the preheating box (601) is provided with a connecting rod (602). The interior of the preheating box (601) is provided with a recovery heater (603). The upper end of the preheating box (601) is provided with a sealing plate (604). The interior of the recovery heater (603) is provided with a medium tube (605).

6. The PVC foam board based on the cutting and embossing process according to claim 1, characterized in that: The rotating module (7) comprises a rotating motor (701), a central shaft (702), an anti-friction bearing (703), an inner liner tightening ring (704) and reinforcing bolts (705). The central shaft (702) is provided at the front end of the rotating motor (701). Anti-friction bearings (703) are provided on the left and right sides of the outer end of the central shaft (702). An inner liner tightening ring (704) is provided at the front side of the anti-friction bearing (703). Reinforcing bolts (705) are distributed in a ring shape at the outer end of the inner liner tightening ring (704).

7. The PVC foam board based on the cutting and embossing process according to claim 1, characterized in that: The regulating module (8) comprises an outer ring block (801), an inner ring block (802), a reinforcement hole (803), an annular hole (804) and meshing teeth (805); the inner ring block (802) is provided on the inner side of the outer ring block (801); the reinforcement hole (803) is provided in the middle of the inner side of the inner ring block (802); annular holes (804) are distributed in an annular manner on the outer side of the front end of the outer ring block (801); and meshing teeth (805) are provided at the contact ends of the outer ring block (801) and the inner ring block (802).

8. The PVC foam board based on the cutting and embossing process according to claim 1, characterized in that: The embossing module (9) comprises an embossing roller (901), a sleeve (902), an embossing shaft (903), a guide wheel (904) and a reinforcement ring (905); the sleeve (902) is provided on the left and right sides of the outer end of the embossing roller (901); the embossing shaft (903) is provided on the inner side of the embossing roller (901); the guide wheels (904) are sleeved and mounted on the left and right sides of the outer end of the embossing shaft (903); and the reinforcement rings (905) are provided on the front and rear sides of the guide wheel (904).

9. The PVC foam board based on the cutting and embossing process according to claim 1, characterized in that: The sliding module (11) comprises a sliding plate (111), a vertical block (112), a transmission motor (113), a transmission wheel (114) and a positioning pin (115); the vertical block (112) is provided on the front side of the upper end of the sliding plate (111); the transmission motor (113) is provided on the inner side of the middle part of the vertical block (112); the transmission wheel (114) is provided at the front end of the transmission motor (113); and the positioning pin (115) is provided on the middle part of the upper end of the vertical block (112).

10. The method for preparing a PVC foam board based on a cutting and embossing process according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: First, the servo motors (12) symmetrically arranged at the front and rear ends of the front conveyor (1) and the docking conveyor (2) are turned on to drive the screws (13) arranged on the inner sides of the upper ends of the front conveyor (1) and the docking conveyor (2) to start rotating, and the displacement lifting modules (3) located in different front and rear areas are moved to appropriate positions and stopped according to the embossing requirements; Step 2: Turning on the rotating motor (701) in the rotating module (7) drives the adjusting module (8) to start rotating. Due to the meshing teeth (805) provided at the contact ends of the outer ring block (801) and the inner ring block (802) of the adjusting module (8), the inner ring block (802) drives the outer ring block (801) to rotate during the rotation process, so that the embossing rollers (901) with different models installed in a circular distribution outside the front end of the outer ring block (801) rotate. Then, according to the embossing requirements, the embossing roller (901) installed with the model to be used is rotated to the lower position and then stopped. Step 3: Open the sliding door (306) in the symmetrically distributed displacement lifting module (3), and push the left and right sliding modules (11) installed on the inner side to move to the opposite side. When the transmission wheel (114) in the left and right sliding modules (11) and the guide wheels (904) installed on the left and right ends of the embossing roller (901) contact each other, the two form an engaging and holding angle, and then connect the line connector installed on the right end of the embossing roller (901) to the external power supply to power the built-in heating rod of the embossing roller (901), thereby heating the embossing roller (901); Step 4: While heating the embossing roller (901), the winding motor of the winding heat insulation curtain (10) is powered to move the winding heat insulation curtain (10) downward along the card slot block (304) in the displacement lifting module (3), and block the two sides of the frame structure formed by the displacement lifting module (3), the installation module (4) and the arc cover (5), so that the heat generated by the heating of the embossing roller (901) is blocked and not easily leaked out; Step 5. After the internal heating of the frame structure formed by the displacement lifting module (3), the installation module (4) and the arc cover (5) is completed, since the arc cover (5) is connected to the preheating module (6) through the transmission pipeline, the excess hot air flow can be introduced into the preheating module (6) and absorbed and stored by the recovery heater (603) inside the preheating box (601). The stored heat can heat the air inside the preheating box (601). When the PVC foam board passes below, the hot air will preheat the upper embossed surface of the PVC foam board; Step 6: After the preheated PVC foam board enters the frame structure formed by the displacement lifting module (3), the installation module (4) and the arc cover (5), the transmission motor (113) drives the transmission wheel (114) to rotate, and the transmission wheel (114) and the guide wheel (904) engage with each other, thereby driving the embossing roller (901) to emboss the passing PVC foam board.

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