CN118024552B - A double-sided embossing device and method for SPC decorative sheet - Google Patents

Abstract

The invention relates to the technical field of embossing, and discloses a double-sided embossing device and a double-sided embossing method for an SPC decorative plate. According to the SPC decorative board double-sided embossing device and the SPC decorative board double-sided embossing method, the SPC decorative board is heated to the designated temperature in a repeated gradual heating mode, then the processing efficiency is accelerated through double-sided embossing, the board can be heated more uniformly, the internal stress and deformation caused by rapid temperature change are reduced, the thermal expansion and contraction of the material are controlled, and cracks or fractures caused by temperature impact are avoided.

Description

A double-sided embossing device and method for SPC decorative sheet

Technical Field

The invention relates to the technical field of embossing, and in particular to a double-sided embossing device and method for a SPC decorative plate.

Background technique

SPC decorative board is a new type of material made of natural limestone and polymer materials. SPC decorative board has a variety of colors and patterns to choose from, which can meet the needs of different decoration styles. In addition, it has a certain sound-absorbing effect, which helps to reduce indoor noise. As a floor decoration material, SPC board is more and more popular in modern home decoration with its environmental protection, waterproof, anti-slip, wear-resistant, light and beautiful characteristics.

In the processing of SPC decorative sheets, in order to carve patterns on their surfaces, embossing is generally used. Currently, single-sided embossing is used in the embossing process, and an embossing roller with a heating function is used to emboss while heating. However, this method heats the SPC decorative sheets too quickly during the heating process, resulting in uneven temperature and affecting the embossing quality. For this reason, we propose a double-sided embossing device and method for SPC decorative sheets.

Summary of the invention

In view of the above-mentioned deficiencies in the prior art, the present invention provides a double-sided embossing device and method for SPC decorative plates, which solves the problem of uneven temperature of SPC decorative plates during embossing and improves efficiency by adopting double-sided embossing.

The present invention provides the following technical solution: a double-sided embossing device for SPC decorative sheet, comprising a machine tool and a roller conveyor installed on the machine tool, wherein a rectangular groove located below the roller conveyor is opened in the middle of the machine tool, and a plurality of A heating rollers are arranged in the rectangular groove, and the plurality of A heating rollers are driven by a transmission device, and the A heating rollers and the rollers on the roller conveyor convey and heat the SPC decorative sheet;

The machine tool is provided with a plurality of guide column assemblies, and a slidable heating element is provided on the plurality of guide column assemblies, and the heating element is located directly above a plurality of A heating rollers, and the heating element comprises a support plate slidably arranged on the guide column assembly, a plurality of rotatable B heating rollers are provided at the bottom end of the support plate, and a rotatable adjustment structure is provided at the front end of the support plate, and the adjustment structure and the plurality of B heating rollers are driven by a transmission structure, and the adjustment structure contacts the SPC decorative sheet through the SPC decorative sheet, and the height of the support plate is adjusted so that the B heating roller contacts and heats the SPC decorative sheet;

The machine tool is equipped with a plurality of gas support assemblies, and the downward pressure of the heating element is adjusted by the plurality of gas support assemblies;

Fixed blocks are installed on both sides of the machine tool, and C pressure sensors are provided on the fixed blocks. When the support plate contacts the two fixed blocks, the pressure is detected by the C pressure sensor, and the pressure of the initial position of the heater on the fixed block is adjusted by adjusting the gas support assembly, so that when the heater contacts the SPC decorative plate, the pressure on the heater is within the set range;

A rotatable A embossing roller is provided at the end of the machine tool, and the A embossing roller is located between the cylinders on the roller conveyor and contacts the bottom of the SPC decorative sheet. The machine tool is installed with two side panels, and sliding openings are opened on the two side panels. A slider that can slide up and down is provided in the sliding opening of the side panel, and a rotatable B embossing roller is provided between the two sliders. The top ends of the two side panels are pushed to move the slider by the A hydraulic cylinder to adjust the spacing between the A embossing roller and the B embossing roller. The A embossing roller and the B embossing roller are driven by a synchronous structure, so that the A embossing roller rotates clockwise and the B embossing roller rotates counterclockwise, and they keep embossing the upper and lower surfaces of the SPC decorative sheet synchronously.

Preferably, the guide column assembly includes a guide column seat installed on the machine tool, and a guide column rod is installed on the top of the guide column seat, and the diameter of the guide column rod is smaller than the guide column seat, the support plate slides on the guide column rod, and a rubber gasket is installed on the top of the guide column seat and is sleeved on the bottom end of the guide column rod, and the support plate is pressed on the rubber gasket.

Preferably, the adjustment structure includes two circular plates, and the outer side surfaces of the circular plates are connected to the transmission structure through an axis core, and a plurality of groups of connecting columns distributed in a circular array are provided between the two circular plates, and a rotatable supporting sleeve is provided on the connecting columns. When the SPC decorative sheet contacts the rotating adjustment structure, the SPC decorative sheet is pressed underneath it, so that the adjustment structure drives the heating element to move upward.

Preferably, the support plate and the rectangular groove are provided with infrared temperature sensors behind the A heating roller and the B heating roller. After the SPC decorative sheet passes through the A heating roller and the B heating roller, the temperature of the upper and lower surfaces is detected by the infrared temperature sensors.

Preferably, the gas support assembly includes a support mounted on the machine tool, and the inner side of the support is threadedly connected to the threaded column, an adjustment plate is installed at the top of the threaded column, the top of the adjustment plate is rotatably connected to the support plate through a slewing bearing, and the support plate and the connecting plate are connected through an A pressure sensor, a gas support rod is installed on the connecting plate, and the top of the gas support rod is connected to the heating element, and the downward pressure of the gas support rod is detected by the A pressure sensor.

Preferably, the roller conveyor is provided with a row of rotatable support rollers located below the adjustment structure, and the row of support rollers are all in contact with the bottom end of the SPC decorative sheet, and the adjustment structure presses the SPC decorative sheet on the row of support rollers.

Preferably, a connecting beam is installed between the top ends of the two side panels.

Preferably, the synchronization structure includes two A sprockets installed with the shaft ends of the A embossing roller and the B embossing roller, two B sprockets are arranged on the side of the machine tool, and the two B sprockets are symmetrically distributed below the A sprocket located at the shaft end of the A embossing roller, one of the B sprockets is driven by a motor, and the two A sprockets and the two B sprockets are driven by chains, and the A sprocket at the shaft end of the A embossing roller is transmitted to the outer side surface of the chain, a rectangular opening located below the sliding opening is opened on the side plate, and two sliding slides are arranged in the rectangular opening of the side plate, both of the slides are provided with rotatable C sprockets, and B hydraulic cylinders for pushing the slides to move are arranged on both sides of the side plate, and the slides are pushed to move to both sides of the rectangular opening by the B hydraulic cylinders, so that the C sprockets adjust the tightness of the chain.

Preferably, the slide is provided with a slidable table top, and the C sprocket is arranged on the table top, and the end face of the table top is provided with a B pressure sensor for detecting the tightness of the chain. The chain contacts the C sprocket, and pressure is applied to the C sprocket, so that the table top presses the pressure sensor, and the pressure on the table top is detected by the B pressure sensor to detect the tightness of the chain.

A double-sided embossing method for SPC decorative panels, the specific operation is as follows:

S1. Adjust the downward pressure of the heating element at the initial position through the gas support assembly so that the heating element passes through the heating element within the set pressure range, adjust the position of the B embossing roller through the A hydraulic cylinder, and use the synchronous structure to drive the A embossing roller and the B embossing roller synchronously;

S2. Adjust the position of the SPC decorative sheet and place it on the roller conveyor, so that the roller conveyor conveys the SPC decorative sheet. When the SPC decorative sheet passes through the heating element, the adjustment structure first contacts the SPC decorative sheet, and the rotating adjustment structure presses the SPC decorative sheet while driving the heating element to move upward, so that the SPC decorative sheet contacts the B heating roller. The upper and lower surfaces of the SPC decorative sheet contact and heat with several groups of A heating rollers and B heating rollers respectively, and the SPC decorative sheet is heated to a specified temperature by multiple heating methods.

S3 and SPC decorative sheets continue to be conveyed after being heated, and are embossed from the upper and lower directions by the A embossing roller and the B embossing roller.

Compared with the prior art, the present invention has the following beneficial effects:

(1) The SPC decorative sheet is heated to the specified temperature by gradually heating it multiple times, and then double-sided embossing is performed to speed up the processing efficiency, so that the sheet is heated more evenly, and the internal stress and deformation caused by rapid temperature changes are reduced, which helps control the thermal expansion and contraction of the material and avoid cracks or fractures caused by temperature shock;

(2) When the embossing roller A and the embossing roller B jointly emboss the upper and lower surfaces of the SPC decorative sheet, the spacing between the embossing roller A and the embossing roller B can be adjusted according to the thickness of the sheet, and the embossing roller A and the embossing roller B can be jointly driven to rotate by a synchronous structure. In addition, during the process of adjusting the spacing between the embossing roller A and the embossing roller B, the synchronous structure can provide synchronous transmission to them, so that the embossing roller A and the embossing roller B rotate at the same time;

(3) During the heating process, after the heating element contacts the SPC decorative sheet, it will automatically move upward, so that the B heating roller contacts and heats the top of the SPC decorative sheet. The gas support assembly is used to support the heating element, and the downward pressure of the heating element is adjusted so that the SPC decorative sheet contacts the B heating roller in the heating element. In this way, the sheet is heated by the A embossing roller and the B embossing roller within the set pressure range.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the structure of the present invention;

FIG2 is a schematic diagram of a partial structure of FIG1 of the present invention;

FIG3 is a schematic diagram of the structure of a heating element of the present invention;

FIG4 is a schematic structural diagram of a guide post assembly of the present invention;

FIG5 is a schematic diagram of an adjustment structure of the present invention;

FIG6 is a schematic diagram of a gas support assembly of the present invention;

FIG7 is a schematic diagram of a partial cross-sectional structure of FIG1 of the present invention;

FIG8 is a schematic structural diagram of the slide table of the present invention.

In the figure: 1, machine tool; 2, roller conveyor; 3, rectangular trough; 4, A heating roller; 5, heating element; 51, support plate; 52, B heating roller; 53, adjustment structure; 531, round plate; 532, connecting column; 533, supporting pipe sleeve; 6, gas support assembly; 61, support; 62, threaded column; 63, adjustment plate; 64, slewing bearing; 65, support plate; 66, connecting plate; 67, A pressure sensor; 68, gas support rod; 7 , A embossing roller; 8, guide column assembly; 81, guide column seat; 82, guide column rod; 83, rubber gasket; 9, synchronous structure; 91, A sprocket; 92, B sprocket; 93, chain; 94, slide; 95, C sprocket; 96, B hydraulic cylinder; 97, table; 98, B pressure sensor; 10, slider; 11, B embossing roller; 12, A hydraulic cylinder; 13, support roller; 14, connecting beam; 15, side plate; 16, fixing block.

Detailed ways

In order to make the objectives, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. In order to keep the following description of the embodiments of the present disclosure clear and concise, the present disclosure omits detailed descriptions of known functions and known components to avoid unnecessary confusion of the concepts of the present invention.

Referring to Figures 1 and 2, a double-sided embossing device for SPC decorative sheets includes a machine tool 1 and a roller conveyor 2 installed on the machine tool 1. A rectangular groove 3 located below the roller conveyor 2 is opened in the middle of the machine tool 1, and a plurality of A heating rollers 4 are arranged in the rectangular groove 3. The plurality of A heating rollers 4 are driven by a transmission device, and the A heating rollers 4 and the rollers on the roller conveyor 2 convey and heat the SPC decorative sheets. In this way, the SPC decorative sheets pass through a plurality of groups of A heating rollers 4 as they are conveyed by the roller conveyor 2, so that the plurality of A heating rollers 4 heat the SPC decorative sheets multiple times.

Referring to FIG. 3 , the machine tool 1 is provided with a plurality of guide column assemblies 8, and a slidable heating element 5 is provided on the plurality of guide column assemblies 8. The heating element 5 is located directly above the plurality of A heating rollers 4. The heating element 5 comprises a support plate 51 slidably arranged on the guide column assemblies 8, a plurality of rotatable B heating rollers 52 are provided at the bottom end of the support plate 51, and a rotatable adjustment structure 53 is provided at the front end of the support plate 51. The adjustment structure 53 and the plurality of B heating rollers 52 are driven by a transmission structure, and the adjustment structure 53 contacts the SPC decorative sheet, and the height of the support plate 51 is adjusted so that the B heating rollers 52 contact and heat the SPC decorative sheet;

The guide column assembly 8 supports the heating element 5 to reduce the downward pressure thereon, and the rotating adjustment structure 53 presses the SPC decorative sheet at its bottom after contacting it, and during the contact process, the adjustment structure 53 is supported to move upward, thereby driving the heating element 5 to move upward, so that the SPC decorative sheet continues to be conveyed, and the B heating roller 52 can be in contact with the top of the SPC decorative sheet, and the A heating roller 4 and the B heating roller 52 correspond to each other up and down, and heat the SPC decorative sheet together, so that the SPC decorative sheet is gradually heated to the specified temperature multiple times, so that the sheet is heated more evenly, and after the SPC decorative sheet passes through the heating element 5, the bottom of the heating element 5 loses support and moves downward again to return to its original position.

Both the transmission device and the transmission device can be a sprocket and chain transmission method, and driven by a motor, or other transmission methods can be used.

Referring to FIG. 4 , the guide column assembly 8 includes a guide column seat 81 mounted on the machine tool 1, and a guide column rod 82 is mounted on the top of the guide column seat 81, and the diameter of the guide column rod 82 is smaller than that of the guide column seat 81, and the support plate 51 slides on the guide column rod 82, and a rubber gasket 83 is mounted on the top of the guide column seat 81 and is sleeved on the bottom of the guide column rod 82, and the support plate 51 is pressed on the rubber gasket 83. The guide column assembly 8 is used to make the heating element 5 move only up and down to limit its movement trajectory, and the guide column seat 81 can prevent the heating element 5 from falling further, so that the A heating roller 4 and the B heating roller 52 maintain a distance, and the rubber gasket 83 can buffer the collision between the heating element 5 and the guide column seat 81 during the downward movement.

Referring to FIG. 5 , the adjustment structure 53 includes two circular plates 531, and the outer side of the circular plates 531 is connected to the transmission structure through the shaft core. A plurality of connecting columns 532 distributed in a circular array are arranged between the two circular plates 531, and a rotatable supporting sleeve 533 is sleeved on the connecting column 532. When the SPC decorative sheet contacts the rotating adjustment structure 53, the SPC decorative sheet is pressed under it, so that the adjustment structure 53 drives the heating element 5 to move upward. When the SPC decorative sheet moves to the bottom thereof, during the rotation of the adjustment structure 53, a certain connecting column 53 2 first contacts with it and rolls on it, and the adjustment structure 53 continues to rotate, and the support sleeve 533 supports the adjustment structure 53 to move up, so as to adjust the distance between the A heating roller 4 and the B heating roller 52, and the distance between the A heating roller 4 and the B heating roller 52 changes with the rotation of the support sleeve 533. When the support sleeve 533 on the SPC decorative board moves to the lowest point, the SPC decorative board just passes through the A heating roller 4 and the B heating roller 52, so that the adjustment structure 53 can automatically adjust the position of the heating element 5 according to the thickness of the board.

The roller conveyor 2 is provided with a row of rotatable support rollers 13 located below the adjustment structure 53, and the row of support rollers 13 are in contact with the bottom end of the SPC decorative sheet. The adjustment structure 53 presses the SPC decorative sheet on the row of support rollers 13, and the support sleeve 533 on the adjustment structure 53 contacts the SPC decorative sheet, which will apply downward pressure to the SPC decorative sheet. The roller spacing on the roller conveyor 2 is too large, so it is supported by a row of support rollers 13, so that when the SPC decorative sheet is pressed down by the support sleeve 533, the row of support rollers 13 supports it.

The outer diameter formed by the rotation of several groups of support sleeves 533 distributed in a circular array is the same as the diameter of the B heating roller 52. The support sleeves 533 on the adjustment structure 53 will continuously contact the SPC decorative sheet, and the position of the support sleeves 533 during the rotation process will change the distance between the A heating roller 4 and the B heating roller 52. Only when the support sleeves 533 move to the lowest point can the SPC decorative sheet just pass through the A heating roller 4 and the B heating roller 52. At this time, the B heating roller 52 presses on the SPC decorative sheet, and the heating element 5 cannot move downward. Only when the SPC decorative sheet passes through all the B heating rollers 52 will the heating element 5 fall.

The support plate 51 and the rectangular groove 3 are both provided with infrared temperature sensors behind the A heating roller 4 and the B heating roller 52. After the SPC decorative sheet passes through the A heating roller 4 and the B heating roller 52, the temperatures of the upper and lower surfaces are detected by the infrared temperature sensors. The upper and lower surfaces of the SPC decorative sheet are heated to a specified temperature each time. The temperature of each heating can be detected by these infrared temperature sensors. The sheet is heated to the specified temperature by gradually heating multiple times, so that the heating is more uniform, and the internal stress caused by the rapid temperature change is avoided, which affects the product.

Referring to FIG. 6 , a plurality of gas support assemblies 6 are installed on the machine tool 1, and the downward pressure of the heating element 5 is adjusted by the plurality of gas support assemblies 6. The gas support assembly 6 includes a support 61 installed on the machine tool 1, and the inner side of the support 61 is threadedly connected to a threaded column 62, and an adjustment plate 63 is installed on the top of the threaded column 62. The top of the adjustment plate 63 is rotatably connected to a support plate 65 through a slewing bearing 64, and the support plate 65 and the connecting plate 66 are connected through an A pressure sensor 67. A gas support rod 68 is installed on the connecting plate 66, and the top of the gas support rod 68 is connected to the heating element 5 through the A pressure sensor 67 detects the downward pressure of the gas strut 68. The gas strut 68 adopts a product without an air lock structure, so that it has no damping effect and is equivalent to a spring. In this way, the power required for the adjustment structure 53 to drive the heating element 5 to move upward becomes smaller. By rotating the adjustment plate 63, the threaded column 62 extends from the support 61, so that the adjustment plate 63 moves upward to further compress the gas strut 68, thereby reducing the downward pressure of the heating element 5. In this way, the compression amount of the gas strut 68 is controlled by rotating the adjustment plate 63, thereby adjusting the downward pressure of the heating element 5. The downward gravity of each position of the heating element 5 can be detected by the A pressure sensor 67 in the multiple gas strut assemblies 6.

The heating element 5 itself has a large weight. If it contacts the SPC decorative board, the SPC decorative board may have too much gravity. Therefore, the pressure is adjusted by the gas support assembly 6 so that the pressure borne by the SPC decorative board when it contacts it is within the set pressure range.

Fixed blocks 16 are installed on both sides of the machine tool 1, and a C pressure sensor is provided on the fixed block 16. When the support plate 51 contacts the two fixed blocks 16, the pressure is detected by the C pressure sensor, and the pressure of the initial position of the heating element 5 on the fixed block 16 is adjusted by adjusting the gas support assembly 6, so that when the heating element 5 contacts the SPC decorative board, the pressure on the heating element 5 is within the set range. When the heating element 5 is in the initial position, it will contact the C pressure sensor. The downward pressure of the heating element 5 at this time can be detected by the C pressure sensor, and then multiple gas support assemblies 6 are adjusted to adjust and change the downward pressure of the heating element 5.

Referring to FIG. 7 , a rotatable A embossing roller 7 is provided at the end of the machine tool 1, and the A embossing roller 7 is located between the cylinders on the roller conveyor 2 and contacts the bottom of the SPC decorative sheet. The machine tool 1 is installed with two side panels 15, and sliding openings are opened on the two side panels 15. A slider 10 that can slide up and down is provided in the sliding opening of the side panel 15, and a rotatable B embossing roller 11 is provided between the two sliders 10. The top ends of the two side panels 15 are pushed to move the slider 10 by the A hydraulic cylinder 12 to adjust the spacing between the A embossing roller 7 and the B embossing roller 11. The A embossing roller 7 and the B embossing roller 11 are driven by the synchronous structure 9 to make the A embossing roller 7 rotate clockwise and the B embossing roller 11 rotate counterclockwise, and keep embossing the upper and lower surfaces of the SPC decorative sheet synchronously.

Currently, two motors are used for synchronization, but the requirements for the motor and control system are too high. If the rotation speeds of the A embossing roller 7 and the B embossing roller 11 are different, it will lead to a lack of synchronization, making it impossible to synchronize the SPC decorative sheet when embossing the upper and lower parts, resulting in blurred lines and affecting product quality. The synchronization structure 9 can achieve the synchronization problem of the A embossing roller 7 and the B embossing roller 11.

A connecting beam 14 is installed between the top ends of the two side panels 15 , and the stability of the two side panels 15 is enhanced by the connecting beam 14 .

The synchronization structure 9 includes two A sprockets 91 installed with the axial ends of the A embossing roller 7 and the B embossing roller 11, two B sprockets 92 are arranged on the side of the machine tool 1, and the two B sprockets 92 are symmetrically distributed below the A sprocket 91 located at the axial end of the A embossing roller 7, one of the B sprockets 92 is driven by a motor, the two A sprockets 91 and the two B sprockets 92 are driven by a chain 93, and the A sprocket 91 at the axial end of the A embossing roller 7 is driven by the outer side of the chain 93, a rectangular opening located below the sliding opening is opened on the side plate 15, and two slidable slides 94 are arranged in the rectangular opening of the side plate 15, and rotatable C sprockets 95 are arranged on the two slides 94, and B hydraulic cylinders 96 for pushing the slides 94 to move are arranged on both sides of the side plate 15, and the slides 94 are pushed to move to both sides of the rectangular opening by the B hydraulic cylinders 96, so that the C sprocket 95 adjusts the tightness of the chain 93.

Since the B embossing roller 11 needs to move up and down when adjusting, the chain 93 will become loose. When the chain 93 is loose, the A embossing roller 7 and the B embossing roller 11 cannot rotate synchronously, resulting in the A embossing roller 7 and the B embossing roller 11 being out of sync when embossing the SPC decorative sheet, making the texture blurred. Therefore, the B hydraulic cylinder 96 pushes the slide 94 to adjust the position of the C sprocket 95, so that the C sprocket 95 tightens the chain 93, so that the A embossing roller 7 and the B embossing roller 11 are synchronized up and down, and the transmission direction of the chain 93 is changed by the two B sprockets 92, so that one A sprocket 91 is located inside the chain 93, and the other A sprocket 91 is located outside the chain 93. In this way, when the chain 93 drives the two A sprockets 91 to transmit, the A embossing roller 7 rotates clockwise and the B embossing roller 11 rotates counterclockwise, so that the upper and lower surfaces of the SPC decorative sheet are embossed.

Referring to FIG8 , the slide table 94 is provided with a slidable table 97, and the C sprocket 95 is arranged on the table 97, and the end surface of the table 97 is provided with a B pressure sensor 98 for detecting the tightness of the chain 93. The chain 93 contacts the C sprocket 95, and applies pressure to the C sprocket 95, so that the table 97 is pressed against the pressure sensor, and the pressure on the table 97 is detected by the B pressure sensor 98 to detect the tightness of the chain 93. If the chain 93 is loose, the pressure applied by the chain 93 to the C sprocket 95 becomes smaller, and the C sprocket 95 is loose. The pressure received by the A-pressure sensor 98 acts on the B-pressure sensor 98, which can detect the pressure change of the table 97 backward. Therefore, when the value of the B-pressure sensor 98 becomes smaller, the B-hydraulic cylinder 96 is driven to push the slide 94 to move to both sides of the rectangular opening, so that the C-sprocket wheel 95 adjusts the tightness of the chain 93 until the value of the B-pressure sensor 98 is restored. After each adjustment of the position of the B-embossing roller 11, the synchronous structure 9 needs to adjust the tightness of the chain 93 to synchronize the A-embossing roller 7 and the B-embossing roller 11 up and down.

A double-sided embossing method for SPC decorative panels, the specific operation is as follows:

S1, adjusting the downward pressure of the heating element 5 at the initial position through the gas support assembly 6, so that the heating element 5 passes through the heating element 5 within the set pressure range, adjusting the position of the B embossing roller 11 through the A hydraulic cylinder 12, and driving the A embossing roller 7 and the B embossing roller 11 synchronously by using the synchronization structure 9;

S2, adjust the position of the SPC decorative sheet and place it on the roller conveyor 2, so that the roller conveyor 2 conveys the SPC decorative sheet. When the SPC decorative sheet passes through the heating element 5, the adjustment structure 53 first contacts the SPC decorative sheet, and the rotating adjustment structure 53 presses the SPC decorative sheet while driving the heating element 5 to move upward, so that the SPC decorative sheet contacts the B heating roller 52. The upper and lower surfaces of the SPC decorative sheet contact and heat with a plurality of groups of A heating rollers 4 and B heating rollers 52 respectively, and the SPC decorative sheet is heated to a specified temperature by multiple heating methods;

S3. The SPC decorative board is continuously conveyed after being heated, and is embossed from the upper and lower directions by the A embossing roller 7 and the B embossing roller 11.

The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims (10)

1. A double-sided embossing device for SPC decorative sheets, characterized in that it comprises a machine tool (1) and a roller conveyor (2) mounted on the machine tool (1), wherein a rectangular groove (3) located below the roller conveyor (2) is provided in the middle of the machine tool (1), and a plurality of A heating rollers (4) are provided in the rectangular groove (3), wherein the plurality of A heating rollers (4) are driven by a transmission device, and the A heating rollers (4) and the rollers on the roller conveyor (2) convey and heat the SPC decorative sheets; The machine tool (1) is provided with a plurality of guide column assemblies (8), and a slidable heating element (5) is provided on the plurality of guide column assemblies (8), the heating element (5) being located directly above the plurality of A heating rollers (4), the heating element (5) comprising a support plate (51) slidably arranged on the guide column assemblies (8), a plurality of rotatable B heating rollers (52) being provided at the bottom end of the support plate (51), and a rotatable adjustment structure (53) being provided at the front end of the support plate (51), the adjustment structure (53) and the plurality of B heating rollers (52) being driven by a transmission structure, and contacting the SPC decorative sheet through the adjustment structure (53), and adjusting the height of the support plate (51) so that the B heating rollers (52) contact and heat the SPC decorative sheet; The machine tool (1) is equipped with a plurality of gas support assemblies (6), and the downward pressure of the heating element (5) is adjusted by the plurality of gas support assemblies (6); The machine tool (1) is provided with a fixed block (16) on both sides, and a C pressure sensor is provided on the fixed block (16). When the support plate (51) contacts the two fixed blocks (16), the pressure applied is detected by the C pressure sensor, and the pressure applied by the heating element (5) to the fixed block (16) at the initial position is adjusted by adjusting the gas support assembly (6), so that when the heating element (5) contacts the SPC decorative plate, the pressure applied to the heating element (5) is within a set range; A rotatable A embossing roller (7) is provided at the end of the machine tool (1), and the A embossing roller (7) is located between the cylinders on the roller conveyor (2) and contacts the bottom of the SPC decorative plate. The machine tool (1) is installed with two side plates (15), and the two side plates (15) are provided with sliding openings. A slider (10) that can slide up and down is provided in the sliding opening of the side plate (15), and a rotatable B embossing roller (11) is provided between the two sliders (10). The top ends of the two side plates (15) are pushed by the A hydraulic cylinder (12) to move the slider (10) to adjust the spacing between the A embossing roller (7) and the B embossing roller (11). The A embossing roller (7) and the B embossing roller (11) are driven by the synchronous structure (9), so that the A embossing roller (7) rotates clockwise and the B embossing roller (11) rotates counterclockwise, and they keep embossing on the upper and lower surfaces of the SPC decorative plate synchronously. 2. A double-sided embossing device for SPC decorative sheet material according to claim 1, characterized in that: the guide column assembly (8) includes a guide column seat (81) installed on the machine tool (1), and a guide column rod (82) is installed on the top of the guide column seat (81), and the diameter of the guide column rod (82) is smaller than that of the guide column seat (81), the support plate (51) slides on the guide column rod (82), and a rubber gasket (83) is installed on the top of the guide column seat (81) and is sleeved on the bottom end of the guide column rod (82), and the support plate (51) is pressed on the rubber gasket (83). 3. A double-sided embossing device for an SPC decorative sheet according to claim 1, characterized in that: the adjustment structure (53) comprises two circular plates (531), and the outer side surfaces of the circular plates (531) are connected to the transmission structure through an axis core, and a plurality of groups of connecting columns (532) distributed in a circular array are arranged between the two circular plates (531), and a rotatable supporting pipe sleeve (533) is sleeved on the connecting columns (532), and when the SPC decorative sheet contacts the rotating adjustment structure (53), the SPC decorative sheet is pressed underneath it, so that the adjustment structure (53) drives the heating element (5) to move upward. 4. The double-sided embossing device of an SPC decorative sheet according to claim 1 is characterized in that: the support plate (51) and the rectangular groove (3) are both provided with infrared temperature sensors behind the A heating roller (4) and the B heating roller (52); after the SPC decorative sheet passes through the A heating roller (4) and the B heating roller (52), the temperature of the upper and lower surfaces is detected by the infrared temperature sensors. 5. A double-sided embossing device for SPC decorative board according to claim 1, characterized in that: the gas support assembly (6) includes a support (61) installed on the machine tool (1), and the inner side of the support (61) is threadedly connected to the threaded column (62), an adjustment plate (63) is installed at the top end of the threaded column (62), the top end of the adjustment plate (63) is rotatably connected to the support plate (65) through a slewing bearing (64), and the support plate (65) and the connecting plate (66) are connected through an A pressure sensor (67), a gas support rod (68) is installed on the connecting plate (66), and the top end of the gas support rod (68) is connected to the heating element (5), and the downward pressure of the gas support rod (68) is detected by the A pressure sensor (67). 6. A double-sided embossing device for SPC decorative sheet according to claim 1, characterized in that: the roller conveyor (2) is provided with a row of rotatable support rollers (13) located below the adjustment structure (53), and the row of support rollers (13) are all in contact with the bottom end of the SPC decorative sheet, and the adjustment structure (53) presses the SPC decorative sheet on the row of support rollers (13). 7. A double-sided embossing device for SPC decorative board according to claim 1, characterized in that a connecting beam (14) is installed between the top ends of the two side panels (15). 8. The double-sided embossing device for SPC decorative board according to claim 1, characterized in that: the synchronous structure (9) comprises two A sprockets (91) mounted with the shaft ends of the A embossing roller (7) and the B embossing roller (11), two B sprockets (92) are arranged on the side of the machine tool (1), and the two B sprockets (92) are symmetrically distributed below the A sprocket (91) located at the shaft end of the A embossing roller (7), one of the B sprockets (92) is driven by a motor, the two A sprockets (91) and the two B sprockets (92) are driven by a chain (93), and the A embossing roller (7 ... The A sprocket (91) at the shaft end of the pattern roller (7) is driven by the outer side surface of the chain (93); a rectangular opening located below the sliding opening is opened on the side plate (15); two slidable slides (94) are arranged in the rectangular opening of the side plate (15); a rotatable C sprocket (95) is arranged on each of the two slides (94); and a B hydraulic cylinder (96) for pushing the slides (94) to move is arranged on both sides of the side plate (15); the slides (94) are pushed to move to both sides of the rectangular opening by the B hydraulic cylinder (96), so that the C sprocket (95) adjusts the tightness of the chain (93). 9. A double-sided embossing device for SPC decorative board according to claim 8, characterized in that: a slidable table (97) is provided on the slide table (94), and a C sprocket (95) is arranged on the table (97), and a B pressure sensor (98) for detecting the tightness of the chain (93) is provided on the end surface of the table (97), the chain (93) contacts the C sprocket (95), and pressure is applied to the C sprocket (95), so that the table (97) is pressed against the pressure sensor, and the pressure on the table (97) is detected by the B pressure sensor (98), thereby detecting the tightness of the chain (93). 10. A method for double-sided embossing of an SPC decorative sheet, characterized in that the double-sided embossing device for an SPC decorative sheet according to any one of claims 1 to 9 is used, and the specific operation is as follows: S1, adjusting the downward pressure of the heating element (5) at the initial position through the air support assembly (6) so that the heating element (5) passes through the heating element (5) within a set pressure range, adjusting the position of the B embossing roller (11) through the A hydraulic cylinder (12), and driving the A embossing roller (7) and the B embossing roller (11) synchronously by using the synchronization structure (9); S2, adjusting the position of the SPC decorative sheet and placing it on the roller conveyor (2), so that the roller conveyor (2) conveys the SPC decorative sheet. When the SPC decorative sheet passes through the heating element (5), the adjustment structure (53) first contacts the SPC decorative sheet, and the rotating adjustment structure (53) presses the SPC decorative sheet while driving the heating element (5) to move upward, so that the SPC decorative sheet contacts the B heating roller (52). The upper and lower surfaces of the SPC decorative sheet contact and heat the plurality of groups of A heating rollers (4) and B heating rollers (52), respectively. The SPC decorative sheet is heated to a specified temperature by multiple heating processes. After being heated, the S3 and SPC decorative plates continue to be conveyed and are embossed from the upper and lower directions by the A embossing roller (7) and the B embossing roller (11).