Embossing device and embossing process for outdoor 3D film floor production

Abstract

The present application relates to floor production technical field, disclose a kind of outdoor 3D film pressure floor production embossing device and embossing process, including facing hot press, lower hot press plate, upper hot press plate and feeding conveyor belt, the device also includes frame, positioner, suction plate, suction mechanism, spray assembly and suction assembly, spray assembly and suction assembly cooperate in the top and bottom of coating paper and form two groups of air curtain.The present application is measured by positioner in the process of frame movement, the distance between frame and substrate or coating paper each angle is measured in real time, the accurate positioning between coating paper and substrate is realized, then suction mechanism provides suction force for suction plate, so that two groups of suction plate suction coating paper top two sides keep suspended state, to avoid position deviation between coating paper and substrate, prevent pattern skew or local missing on substrate top after hot pressing, effectively improve laying accuracy and product qualification rate.

Description

Technical Field

[0001] This invention relates to the field of flooring production technology, specifically to an embossing device and embossing process for producing outdoor 3D membrane pressed flooring. Background Technology

[0002] Outdoor 3D membrane-pressed flooring is a new type of flooring with a three-dimensional decorative effect. Its structure is typically composed of a bottom layer of balancing paper, a middle layer of wood substrate, and a top layer of coated paper (i.e., melamine-impregnated paper). This type of flooring is mostly produced by hot pressing with a laminating hot press machine. The hot press plate has an embossed steel plate to form the desired embossed texture on the floor surface.

[0003] In existing production processes, the molding of the aforementioned flooring typically requires two hot-pressing processes. The specific steps are as follows: First, a balancing paper is laid, the substrate is placed on the balancing paper, and water is sprayed onto the top of the substrate. Then, the assembly is fed into a laminating hot press for the first hot press. After the first hot press is completed, the upper hot press plate moves upwards. At this point, an operator manually feeds and lays the coating paper on top of the substrate after the first hot press. The upper hot press plate then moves downwards again to complete the second hot press, allowing the coating paper to be hot-pressed and bonded to the substrate surface, ultimately forming an embossed pattern.

[0004] However, the above-mentioned method of manually spreading the coated paper has revealed the following technical problems in practical applications: First, due to the limited distance between the upper hot press plate before the second hot press and the substrate after the first hot press, the operating space is extremely narrow. When the coating paper is laid manually, the position is easily shifted, resulting in some areas of the top of the substrate after hot pressing lacking decorative patterns, or the pattern being skewed, which seriously affects product quality.

[0005] Secondly, and more significantly, the area between the upper hot press plate and the top of the substrate remains at a high temperature after the first hot press. When the coated paper is manually introduced into this high-temperature area, it is highly susceptible to premature softening and deformation due to heat. This deformation manifests in two main ways: firstly, the coated paper may undergo large-scale softening and deformation before it even contacts the upper hot press plate and the substrate; secondly, if the coated paper comes into premature contact with the high-temperature surface of the upper hot press plate or the substrate during the introduction process, it will cause significant localized deformation. Regardless of the form of deformation, the coated paper will have already changed its state before the formal second hot press. This change in state will lead to slight misalignment and distortion of the patterns on the product during the subsequent second hot press, or the formation of opaque white spots (commonly known as "dried flowers") on the surface, greatly affecting the product's appearance quality and the yield rate. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by providing an embossing device and embossing process for the production of outdoor 3D membrane flooring, so as to improve the accuracy of coating paper laying, prevent it from deforming prematurely due to heat, thereby avoiding pattern distortion, missing patterns and surface drying, and improving product quality.

[0007] The objective of this invention can be achieved through the following technical solutions: An embossing device for producing outdoor 3D membrane flooring includes a laminating hot press, a lower hot press plate, an upper hot press plate, and a feeding conveyor belt. The device also includes: A frame, which is connected to an external driving component, which drives the frame to extend between the lower hot press plate and the upper hot press plate; A positioning device, wherein several sets of positioning devices are installed on the frame, and the positioning device positions the coated paper. The frame is symmetrically and movably mounted with two sets of suction plates, which attract the top sides of the coated paper. The adsorption mechanism has two sets and is symmetrically installed on both sides of the frame. The adsorption mechanism provides an adsorption source and a lateral movement force source for the suction plate. The upper hot plate has ear seats on both sides, which are used to activate the adsorption mechanism to provide a lateral movement source for the suction plate. A spray assembly and a suction assembly are symmetrically mounted on the frame, and the spray assembly and suction assembly cooperate to form two sets of air curtains at the top and bottom of the coated paper.

[0008] As a further embodiment of the present invention: the spray assembly includes a mounting plate one, nozzles and a water pump. The mounting plate one is fixed on the frame. Several sets of nozzles are symmetrically installed on the upper and lower sides of the mounting plate one. The nozzles are connected to the water pump, and the water pump is connected to an external water supply unit. The suction assembly includes a mounting plate two, suction heads and a suction pump. The mounting plate two is fixed on the frame. Several sets of suction heads are symmetrically installed on the upper and lower sides of the mounting plate two. The suction heads are connected to the suction pump. The nozzles spray high-speed moving water mist towards the suction heads, and the suction heads draw in the water mist, forming two sets of air curtains at the top and bottom of the coated paper.

[0009] As a further embodiment of the present invention: the adsorption mechanism includes a support and a negative pressure pump. The support is fixedly connected to the side of the suction plate. A plurality of suction holes are opened at the bottom of the suction plate. A cavity communicating with the plurality of suction holes is opened inside the suction plate. A main channel and a branch channel are opened inside the support. The branch channel is respectively connected to the main channel and the cavity. A negative pressure pump is installed at the end of the main channel.

[0010] As a further aspect of the present invention: a second diversion channel is also provided inside the support, the second diversion channel being connected to the main channel, and the other end of the second diversion channel being connected to the atmosphere. A turbine fan is rotatably installed inside the second diversion channel, and the turbine fan is connected to the drive structure inside the support. The drive structure drives the support away from the frame. A movable groove is longitudinally provided inside the support, and the movable groove intersects with the second diversion channel. A movable plate is longitudinally slidably installed inside the movable groove. A connecting hole for communicating with the second diversion channel is provided on the movable plate. A roller that cooperates with the ear seat is rotatably installed at the top of the movable plate. An elastic element is connected between the bottom end of the movable plate and the movable groove.

[0011] As a further embodiment of the present invention: the driving mechanism includes a gear and a support frame, a through groove is provided in the support, a gear coaxially connected to the turbine fan is rotatably installed in the through groove, the support frame is fixed on the side of the frame, the top and bottom of the support frame are respectively attached to the top and bottom of the through groove, and a rack that meshes with the gear is provided on the support frame.

[0012] As a further aspect of the present invention: the suction hole is provided with a tapered orifice plate and a bracket, and a plug for sealing the tapered orifice plate is longitudinally and movably mounted on the bracket, and an elastic element is installed between the plug and the bracket.

[0013] As a further aspect of the present invention: an assembly button is installed on the side of the frame via a connecting plate, and the side of the suction plate presses against the assembly button when the suction plate moves laterally.

[0014] An embossing process for an embossing device used in the production of outdoor 3D membrane flooring, the method being applied to the embossing device as described above, the method comprising the following steps: Step S1: First hot pressing, lay balance paper, place the substrate on the balance paper and spray water on the top of the substrate, and then feed it into the bonding hot press machine between the lower hot press plate and the upper hot press plate through the feeding conveyor belt for the first hot pressing. Step S2: Coated paper adsorption. Place the coated paper on the feeding conveyor belt, drive the frame to move, and stop after the positioning device measures the distance to the correct position. The adsorption mechanism causes the suction plate to adhere to the top two sides of the coated paper. Step S3: Air curtain protection and alignment. After one hot press, the upper hot press plate moves up. The driving component drives the frame to carry the coated paper in. The spray component and suction component are activated simultaneously to form a water mist air curtain on and under the coated paper. The frame stops after it is in place by measuring the distance between the frame and the substrate through the positioning instrument during the movement. Step S4: Suction plate separation and embossing. The upper hot press plate is pressed down. Through the linkage between the ear seat and the suction mechanism, the suction force of the suction hole is weakened and the suction plate moves outward and detaches from the coating paper. The upper hot press plate continues to press down to hot press the coating paper onto the substrate surface and press out the embossing, completing the secondary hot pressing.

[0015] The beneficial effects of this invention are: (1) By setting up a positioning device, suction plate and adsorption mechanism, the positioning device measures the distance between the frame and the base plate or coating paper at each corner in real time during the frame movement, so as to achieve precise positioning between the coating paper and the base plate. Then, the adsorption mechanism provides adsorption force to the suction plate, so that the two sets of suction plates hold the top two sides of the coating paper in a suspended state, thereby avoiding positional displacement between the coating paper and the base plate, preventing the pattern from being skewed or partially missing on the top of the base plate after hot pressing, and effectively improving the laying accuracy and product qualification rate.

[0016] (2) By setting up a spray component and a suction component, the present invention forms a high-speed flowing water mist curtain at the top and bottom of the coated paper. The water mist curtain absorbs and scatters heat radiation, effectively blocking the heat radiation of the upper hot press plate and isolating the surrounding hot air from the convective heat of the high-temperature substrate, greatly slowing down the rate of heat transfer to the coated paper. At the same time, the high-speed flowing water mist is continuously updated and carries away the heat, thereby effectively preventing the coated paper from softening and deforming prematurely due to high temperature after entering the laminating hot press, ensuring the flatness and pattern accuracy of the coated paper before the second hot press, avoiding the formation of dry flowers on the surface, and improving product quality.

[0017] (3) The present invention sets up a movable plate with ear seat, turbine fan, gear and rack linkage structure in the adsorption mechanism. When the upper hot press plate moves down for secondary hot pressing, the ear seat squeezes the movable plate to introduce air into the second flow channel, so as to achieve a gradual decrease in the suction force of the suction hole. At the same time, the turbine fan drives the gear to rotate so that the support drives the suction plate to gradually move away from the coating paper laterally, so as to achieve a smooth separation between the suction plate and the coating paper. This ensures that the coating paper does not come into contact with the upper hot press plate or the top of the substrate in advance before the secondary hot pressing, further avoiding local premature deformation of the coating paper and improving the pattern forming quality.

[0018] (4) By setting a conical plate, a plug and an elastic element in the suction hole, when part of the suction hole separates from the coating paper, the external atmosphere rushes in and the plug at that point automatically seals the conical plate under the action of the elastic element, avoiding a sudden and significant decrease in the vacuum degree in the cavity, so that the suction force of the suction hole that is still adsorbing decreases slowly and controllably, thereby ensuring that the coating paper always remains in a suspended state during the separation process of the suction plate, further ensuring the laying accuracy and product quality. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the hot press for laminating in this invention; Figure 3 This is a schematic diagram of the positioning device structure in this invention; Figure 4 This is a schematic diagram of the spray assembly and suction assembly structure in this invention; Figure 5 This is a schematic diagram showing the positional relationship between the ear seat and the adsorption mechanism in this invention; Figure 6 This is a schematic diagram of the suction hole structure in this invention; Figure 7 This is a schematic diagram of the flow channel and cavity structure in this invention; Figure 8 This is a schematic diagram of the turbine fan and movable plate structure in this invention; Figure 9 This is a schematic diagram of the gear and rack structure in this invention; Figure 10 yes Figure 9 Enlarged structural diagram at point A in the middle.

[0021] In the picture: 1. Laminating hot press; 2. Lower hot press plate; 3. Upper hot press plate; 31. Ear seat; 4. Feeding conveyor belt; 5. Frame; 51. Positioner; 52. Assembly button; 6. Suction plate; 61. Suction hole; 62. Cavity; 63. Conical perforated plate; 64. Support; 65. Plug; 66. Elastic element one; 7. Adsorption mechanism; 71. Support; 711. Main channel; 712. Branch channel one; 713. Branch channel two; 7 14. Movable slot; 715. Through slot; 72. Negative pressure pump; 73. Turbine fan; 74. Movable plate; 741. Connecting hole; 742. Roller; 743. Elastic component two; 75. Gear; 76. Support frame; 761. Rack; 8. Spray assembly; 81. Mounting plate one; 82. Nozzle; 83. Water pump; 9. Suction assembly; 91. Mounting plate two; 92. Suction head; 93. Suction pump; 10. Drive component. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figures 1-7 As shown, an embossing device for producing outdoor 3D membrane flooring includes a laminating hot press 1, a lower hot press plate 2, an upper hot press plate 3, and a feeding conveyor belt 4. The device also includes: Frame 5 is connected to external drive component 10, and drive component 10 drives frame 5 to extend between lower hot plate 2 and upper hot plate 3. Positioning device 51: Several sets of positioning devices 51 are installed on the frame 5. Positioning device 51 positions the coated paper. Two sets of suction plates 6 are symmetrically and movably installed on the frame 5, and the two sets of suction plates 6 attract the top sides of the coated paper. The adsorption mechanism 7 has two sets and is symmetrically installed on both sides of the frame 5. The adsorption mechanism 7 provides an adsorption source and a lateral movement force source for the suction plate 6. The upper hot press plate 3 has ear seats 31 on both sides. The ear seats 31 are used to start the adsorption mechanism 7 to provide a lateral movement source for the suction plate 6. Spray assembly 8 and suction assembly 9 are symmetrically installed on frame 5. Spray assembly 8 and suction assembly 9 cooperate to form two sets of air curtains at the top and bottom of the coated paper.

[0024] In one embodiment, the positioning device 51 can be a rangefinder. The positioning device 51 is equipped with multiple distance measuring instruments to measure the distances between itself and the four corners of the substrate or the four corners of the coated paper. Connected to an external control unit, when the four sets of measured data are approximately equal (with a small error, meaning the error is within the range of the difference between the coated paper size and the substrate size), it indicates that the coated paper was correctly positioned before being held by the suction plate 6, and that the coated paper was correctly laid on top of the substrate. The driving component 10 can be a cylinder or a chain track, used to drive the frame 5 to move.

[0025] In practical application, during the first hot pressing, the worker lays the cut coated paper on the feeding conveyor belt 4, and then the drive unit 10 drives the frame 5 to move towards the laminating hot press 1. Several positioning instruments 51 measure the distance between the four corners of the frame 5 and the four corners of the coated paper. When the four sets of data are close, the frame 5 stops moving. The adsorption mechanism 7 provides an adsorption source for the suction plates 6, so that the two sets of suction plates 6 adsorb the top two sides of the coated paper. At this time, the preparation work is completed. After the first hot pressing is completed, the upper hot press plate 3 moves upward. At this time, the drive unit 10 drives the frame 5 towards the laminating hot press 1 again. The hot press 1 moves while the spray assembly 8 and suction assembly 9 are activated, forming a water mist curtain at the top and bottom of the coated paper. As the frame 5 moves, several positioning instruments 51 measure the distance between the four corners of the frame 5 and the four corners of the substrate. When the four sets of data are close, the frame 5 stops moving, and the positioning is completed. This ensures that the coated paper completely covers the top of the substrate and that the edge of the coated paper remains parallel to the edge of the substrate, preventing the coated paper from shifting from the substrate. This also prevents the decorative pattern from being missing in some areas of the top of the substrate after hot pressing, or the pattern from being skewed overall, thereby improving product quality.

[0026] The upper and lower water mist curtains block heat radiation and isolate heat convection. The heat radiation from the upper hot press plate 3 is the main heat source after the coated paper enters. The water mist curtain has a strong absorption and scattering effect on infrared radiation, acting as an invisible cooling barrier that keeps most of the heat out. At the same time, the surrounding hot air and the high-temperature substrate after the first hot press are effectively separated by this high-speed airflow layer, greatly slowing down the rate of heat transfer to the coated paper. Although the high-speed flowing water mist will vaporize at high temperatures, the water mist is constantly renewed, which can carry away the heat from the top and bottom of the coated paper, thus effectively preventing the coated paper from deforming prematurely due to high temperatures. At the same time, the two sets of suction plates 6 hold the coated paper, so that the coated paper is suspended after entering the laminating hot press machine 1, and will not come into premature contact with the upper hot press plate 3 or the top of the substrate, further preventing the coated paper from deforming prematurely, thereby further improving product quality. In addition, by making the water mist flow at high speed, the generated hot steam can also flow quickly, thus preventing the hot steam from condensing and forming water droplets, thereby preventing water stains from remaining on the top and bottom of the coated paper and preventing water stains from affecting product quality. The high-speed airflow generated by the two stable air curtains will give the coated paper a slight air buoyancy tension, thereby ensuring that the coated paper remains flat before secondary hot pressing, avoiding curling or deformation, and thus further ensuring product quality. Finally, after one hot pressing, the high temperature on the substrate surface causes it to quickly lose moisture and become brittle in the dry, hot air, a phenomenon commonly known as "dry burning." This will make the patterns pressed out later blurry and the surface brittle. The high-speed steam curtain can provide a uniform and humidified microenvironment to the substrate surface instantly, allowing the fibers to maintain their plasticity. However, the air curtain is constantly flowing and being renewed, preventing localized moisture saturation and condensation. In this way, the substrate surface is neither dried out nor wetted, achieving an ideal process state.

[0027] Furthermore, the spray assembly 8 includes a mounting plate 81, nozzles 82, and a water pump 83. The mounting plate 81 is fixed to the frame 5. Several sets of nozzles 82 are symmetrically installed on the upper and lower sides of the mounting plate 81. The nozzles 82 are connected to the water pump 83, which is connected to an external water supply unit. The suction assembly 9 includes a mounting plate 91, suction heads 92, and a suction pump 93. The mounting plate 91 is fixed to the frame 5. Several sets of suction heads 92 are symmetrically installed on the upper and lower sides of the mounting plate 91. The suction heads 92 are connected to the suction pump 93. The nozzles 82 spray high-speed moving water mist towards the suction heads 92, and the suction heads 92 draw in the water mist, forming two sets of air curtains at the top and bottom of the coated paper.

[0028] In practical application, water is pumped by water pump 83 to several nozzles 82, which atomize the water to spray out high-speed flowing water mist. Meanwhile, suction pump 93 keeps several suction nozzles 92 under negative pressure, which on the one hand assists the water mist to flow and form an air curtain, and on the other hand discharges the steam.

[0029] like Figures 5-10 As shown, the adsorption mechanism 7 includes a support 71 and a negative pressure pump 72. The support 71 is fixedly connected to the side of the suction plate 6. The bottom of the suction plate 6 is provided with a plurality of suction holes 61. A cavity 62 communicating with the plurality of suction holes 61 is provided inside the suction plate 6. The support 71 is provided with a main channel 711 and a branch channel 712. The branch channel 712 is connected to the main channel 711 and the cavity 62 respectively. The negative pressure pump 72 is installed at the end of the main channel 711.

[0030] The support 71 also has a second flow channel 713, which is connected to the main flow channel 711. The other end of the second flow channel 713 is connected to the atmosphere. A turbine fan 73 is rotatably installed in the second flow channel 713. The turbine fan 73 is connected to the drive structure inside the support 71. The drive structure drives the support 71 away from the frame 5. A movable groove 714 is longitudinally opened in the support 71. The movable groove 714 intersects with the second flow channel 713. A movable plate 74 is longitudinally slidably installed in the movable groove 714. A connecting hole 741 for communicating with the second flow channel 713 is opened on the movable plate 74. A roller 742 that cooperates with the ear seat 31 is rotatably installed on the top of the movable plate 74. An elastic element 743 is connected between the bottom of the movable plate 74 and the movable groove 714.

[0031] The drive mechanism includes a gear 75 and a support frame 76. A through groove 715 is provided in the support 71. The gear 75, which is coaxially connected to the turbine fan 73, is rotatably installed in the through groove 715. The support frame 76 is fixed to the side of the frame 5. The top and bottom of the support frame 76 are respectively attached to the top and bottom of the through groove 715. A rack 761 that meshes with the gear 75 is provided on the support frame 76.

[0032] In practical application, this embodiment uses a negative pressure pump 72 to generate negative pressure at several suction holes 61, thereby holding the coated paper in place. Before the secondary hot pressing, the coated paper is held by two sets of suction plates 6, which prevents the coated paper from contacting the upper hot pressing plate 3 or the top of the substrate prematurely, thus preventing premature deformation of the coated paper. During the downward movement of the upper hot pressing plate 3, the lug 31 squeezes the roller 742, causing the movable plate 74 to move downward. This allows the connecting hole 741 to gradually connect with the second branch channel 713, and the cross-sectional area at the connection point gradually increases. When the connecting hole 741 connects with the second branch channel 713, air is introduced into the channel because the end of the second branch channel 713 is connected to the atmosphere. This causes the vacuum in the first branch channel 712 and the cavity 62 to decrease, thereby reducing the vacuum level in each suction hole 61. The suction force of the first channel decreases, and the coated paper remains suspended. At the same time, when the second branch channel 713 connects with the main channel 711, the turbine fan 73 will rotate, thereby driving the gear 75 to rotate. Since the position of the support frame 76 remains unchanged, and the gear 75 meshes with the rack 761, in conjunction with the roller 742 and the ear seat 31 rolling, the support 71 moves away from the frame 5. Since the suction force of the suction plate 6 on the coated paper decreases, the support 71 drives the suction plate 6 to gradually move away from the coated paper until the suction plate 6 is completely separated from the coated paper. At this time, the upper hot press plate 3 presses down on the coated paper to cover the top of the substrate, thereby completing the secondary hot press. This ensures that the coated paper does not contact the upper hot press plate 3 or the top of the substrate before the secondary hot press, further preventing the coated paper from deforming prematurely.

[0033] Furthermore, the suction hole 61 is provided with a tapered orifice plate 63 and a bracket 64. A plug 65 for sealing the tapered orifice plate 63 is longitudinally movably installed on the bracket 64. An elastic element 66 is installed between the plug 65 and the bracket 64.

[0034] In practical application, when the negative pressure pump 72 starts, the cavity 62 is under negative pressure. This causes the plug 65 to overcome the elastic force of the elastic element 66 and move upwards, thus creating a negative pressure at the suction hole 61 to hold the coated paper. When the suction plate 6 moves away from the coated paper, some of the suction holes 61 on the suction plate 6 separate from the surface of the coated paper. This allows external air to rush into the cavity 62 through the suction holes 61, reducing the pressure difference inside and outside the plug 65. Consequently, under the rebound action of the elastic element 66, the plug... When the tapered orifice plate 63 is blocked by the downward movement of the plug 65, the sealing cavity of the suction hole 61 that is still adsorbing remains. The pressure difference between the inside and outside of the plug 65 does not change much, so the suction hole 61 that is still adsorbing can still hold the coated paper. Only the suction force decreases. The main factor for this decrease in suction force is the size of the overlapping area between the connecting hole 741 and the second branch channel 713. Therefore, the suction force of the suction hole 61 that is still adsorbing will decrease relatively slowly and controllably, without a sudden and significant decrease, thus ensuring that the coated paper remains in a suspended state before the second hot pressing.

[0035] Furthermore, an assembly button 52 is mounted on the side of the frame 5 via a connecting plate, and the suction plate 6 presses the assembly button 52 from its side when it moves laterally.

[0036] In practical application, when the suction plate 6 is completely separated from the coated paper and moves to be flush with the inner wall of the frame 5, the position of the suction plate 6 does not affect the downward movement of the upper hot press plate 3. At the same time, the other side of the suction plate 6 will press the assembly button 52, which will transmit a signal to the external control unit. The external control unit will shut down the water spray pump 83, the suction pump 93 and the negative pressure pump 72 to perform secondary hot pressing.

[0037] Working principle: Before the first hot press, the worker lays the cut coated paper on the feeding conveyor belt 4. The drive unit 10 drives the frame 5 to move towards the laminating hot press 1. Several positioning instruments 51 measure the distance between the four corners of the frame 5 and the four corners of the coated paper. When the four sets of data are close, the frame 5 stops moving. The negative pressure pump 72 is started to create negative pressure in the cavity 62. The plug 65 moves upward against the elastic force of the elastic element 66. Negative pressure is generated at the suction hole 61, causing the two sets of suction plates 6 to suck up the top two sides of the coated paper. The preparation work is completed. After the first hot press is completed, the upper hot press plate is used. 3. Moving upwards, the drive unit 10 drives the frame 5 to move into the laminating hot press 1 again. At the same time, the water pump 83 draws water to several nozzles 82 to spray high-speed water mist, and the suction pump 93 causes several suction heads 92 to suck up the water mist, forming two sets of air curtains at the top and bottom of the coated paper, effectively blocking heat radiation and isolating heat convection. When the frame 5 moves, several positioning instruments 51 measure the distance between the four corners of the frame 5 and the four corners of the substrate. When the four sets of data are close, the frame 5 stops moving, and the positioning is completed. The coated paper is suspended in the air under the suction plate 6, avoiding contact with the upper hot press 3 or the substrate. The top of the plate makes early contact; when the upper hot press plate 3 moves down for secondary hot pressing, the ear seat 31 squeezes the roller 742 to move the movable plate 74 downward, and the connecting hole 741 gradually connects with the second diversion channel 713, introducing air to gradually reduce the vacuum in the first diversion channel 712 and the cavity 62, and the suction force of the suction hole 61 decreases. At the same time, the airflow in the second diversion channel 713 drives the turbine fan 73 to rotate, and the turbine fan 73 drives the gear 75 to rotate. The gear 75 meshes with the rack 761 on the support frame 76, causing the support 71 to drive the suction plate 6 to gradually move laterally away from the coated paper. During this process, some suction holes 61 separate from the coating paper. The influx of external air causes the plug 65 at this location to automatically seal the conical perforated plate 63 under the rebound of the elastic element 66. The suction force of the suction holes 61 that are still adsorbing decreases slowly. The suction plate 6 continues to move until it is completely separated from the coating paper and flush with the inner wall of the frame 5. The side of the suction plate 6 presses the assembly button 52. The assembly button 52 transmits a signal to the external control unit to shut down the water spray pump 83, the suction pump 93 and the negative pressure pump 72. The upper hot press plate 3 continues to press down to hot press the coating paper onto the surface of the substrate and form embossing, completing the secondary hot pressing.

[0038] An embossing process for an embossing device used in the production of outdoor 3D membrane flooring, the method being applied to the embossing device as described above, the method comprising the following steps: Step S1: First hot pressing, lay balance paper, place the substrate on the balance paper and spray water on the top of the substrate, and then feed it into the bonding hot press machine 1 between the lower hot press plate 2 and the upper hot press plate 3 through the feeding conveyor belt 4 for the first hot pressing. Step S2: Coated paper adsorption. The coated paper is placed on the feeding conveyor belt 4. The driving component 10 drives the frame 5 to move. The positioning device 51 stops after measuring the distance to the position. The adsorption mechanism 7 makes the suction plate 6 adsorb the top two sides of the coated paper. Step S3: Air curtain protection and alignment. After one hot press, the upper hot press plate 3 moves upward. The driving component 10 drives the frame 5 to carry the coated paper in. The spray component 8 and the suction component 9 are started simultaneously to form a water mist air curtain on and under the coated paper. The frame 5 stops after measuring the distance between itself and the substrate through the positioning instrument 51 during movement. Step S4: Suction plate separation and embossing. The upper hot press plate 3 is pressed down. Through the linkage between the ear seat 31 and the adsorption mechanism 7, the suction force of the suction hole 61 is reduced and the suction plate 6 moves outward and detaches from the coating paper. The upper hot press plate 3 continues to press down to hot press the coating paper onto the substrate surface and press out the embossing, completing the secondary hot pressing.

Claims

1. An embossing device for producing outdoor 3D membrane flooring, comprising a laminating hot press (1), a lower hot press plate (2), an upper hot press plate (3), and a feeding conveyor belt (4), characterized in that, The device further includes: The frame (5) is connected to an external drive unit (10), which drives the frame (5) to extend between the lower hot plate (2) and the upper hot plate (3). Positioning device (51), several sets of positioning devices (51) are installed on the frame (5), and the positioning device (51) positions the coated paper. Suction plate (6), two sets of suction plates (6) are symmetrically and movably installed on the frame (5), and the two sets of suction plates (6) attract the top two sides of the coated paper; The adsorption mechanism (7) has two sets and is symmetrically installed on both sides of the frame (5). The adsorption mechanism (7) provides an adsorption source and a lateral movement force source for the suction plate (6). The upper hot press plate (3) has ear seats (31) on both sides. The ear seats (31) are used to start the adsorption mechanism (7) to provide a lateral movement source for the suction plate (6). Spray assembly (8) and suction assembly (9) are symmetrically mounted on the frame (5). The spray assembly (8) and suction assembly (9) cooperate to form two sets of air curtains at the top and bottom of the coated paper.

2. The embossing device for producing outdoor 3D membrane flooring according to claim 1, characterized in that, The spray assembly (8) includes a mounting plate (81), nozzles (82) and a water pump (83). The mounting plate (81) is fixed on the frame (5). Several sets of nozzles (82) are symmetrically installed on the side of the mounting plate (81). Several nozzles (82) are connected to the water pump (83). The water pump (83) is connected to an external water supply unit. The suction assembly (9) includes a mounting plate (91), suction head (92) and suction pump (93). The mounting plate (91) is fixed on the frame (5). Several sets of suction heads (92) are symmetrically installed on the side of the mounting plate (91). Several suction heads (92) are connected to the suction pump (93). Several nozzles (82) spray high-speed moving water mist towards several suction heads (92). Several suction heads (92) suck up water mist, forming two sets of air curtains at the top and bottom of the coated paper.

3. The embossing device for producing outdoor 3D membrane flooring according to claim 1, characterized in that, The adsorption mechanism (7) includes a support (71) and a negative pressure pump (72). The support (71) is fixedly connected to the side of the suction plate (6). The bottom of the suction plate (6) is provided with a plurality of suction holes (61). The suction plate (6) is provided with a cavity (62) communicating with the plurality of suction holes (61). The support (71) is provided with a main channel (711) and a branch channel (712). The branch channel (712) is connected to the main channel (711) and the cavity (62) respectively. The negative pressure pump (72) is installed at the end of the main channel (711).

4. The embossing device for producing outdoor 3D membrane flooring according to claim 3, characterized in that, The support (71) is also provided with a second diversion channel (713), which is connected to the main channel (711). The other end of the second diversion channel (713) is connected to the atmosphere. A turbine fan (73) is rotatably installed in the second diversion channel (713). The turbine fan (73) is connected to the drive structure inside the support (71). The drive structure drives the support (71) away from the frame (5). A movable groove (714) is longitudinally provided in the support (71). The movable groove (714) is at the junction with the second diversion channel (713). A movable plate (74) is longitudinally slidably installed in the movable groove (714). A connecting hole (741) for communicating with the second diversion channel (713) is provided on the movable plate (74). A roller (742) that cooperates with the ear seat (31) is rotatably installed on the top of the movable plate (74). An elastic element (743) is connected between the bottom end of the movable plate (74) and the movable groove (714).

5. The embossing device for producing outdoor 3D membrane flooring according to claim 4, characterized in that, The drive mechanism includes a gear (75) and a support frame (76). A through groove (715) is provided in the support (71). A gear (75) coaxially connected to the turbine fan (73) is rotatably installed in the through groove (715). The support frame (76) is fixed on the side of the frame (5). The top and bottom of the support frame (76) are respectively attached to the top and bottom of the through groove (715). A rack (761) that meshes with the gear (75) is provided on the support frame (76).

6. The embossing device for producing outdoor 3D membrane flooring according to claim 5, characterized in that, The suction hole (61) is provided with a tapered hole plate (63) and a bracket (64). A plug (65) for sealing the tapered hole plate (63) is longitudinally movably installed on the bracket (64). An elastic element (66) is installed between the plug (65) and the bracket (64).

7. The embossing device for producing outdoor 3D membrane flooring according to claim 1, characterized in that, The frame (5) has an assembly button (52) mounted on its side via a connecting plate. When the suction plate (6) moves laterally, its side presses the assembly button (52).

8. An embossing process for an embossing device used in the production of outdoor 3D membrane flooring, characterized in that, The method is applied to an embossing apparatus for producing outdoor 3D membrane flooring as described in any one of claims 1-7 above, and the method includes the following steps: Step S1: First hot pressing, lay balance paper, place the substrate on the balance paper and spray water on the top of the substrate, and then feed it into the lower hot pressing plate (2) and upper hot pressing plate (3) of the laminating hot press machine (1) through the feeding conveyor belt (4) for the first hot pressing; Step S2: Adsorption of coated paper. Place the coated paper on the feeding conveyor belt (4), drive the frame (5) to move, and stop after the positioning device (51) measures the distance to the position. The adsorption mechanism (7) makes the suction plate (6) suck up the top two sides of the coated paper. Step S3: Air curtain protection and alignment. After one hot press, the upper hot press plate (3) moves upward. The driving component (10) drives the frame (5) to carry the coated paper in. The spray component (8) and the suction component (9) are started simultaneously to form a water mist air curtain on and under the coated paper. The frame (5) stops after measuring the distance between itself and the substrate through the positioning instrument (51) during the movement. Step S4: Suction plate separation and embossing. The upper hot press plate (3) is pressed down. Through the linkage between the ear seat (31) and the adsorption mechanism (7), the suction force of the suction hole (61) is reduced and the suction plate (6) moves outward and detaches from the coating paper. The upper hot press plate (3) continues to press down to hot press the coating paper onto the substrate surface and press out the embossing, thus completing the secondary hot pressing.

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