Paving apparatus

Abstract

The application discloses a paving device, which comprises a first material spreading device, the first material spreading device comprising a paving chamber and a first circulating mesh belt device, the paving chamber comprising an air inlet end and an air outlet end arranged along a first direction and a material inlet and a material outlet arranged along a second direction, wherein, in the first direction, the material inlet and the material outlet are located between the air inlet end and the air outlet end, and the material inlet is arranged on a side close to the air inlet end; the first circulating mesh belt device is arranged at the material outlet and extends from a middle part of the paving chamber to the air outlet end at least partially along the first direction. The paving device has a better paving effect, and a slab formed by the paving device is more uniform and has better quality.

Description

Technical Field

[0001] Embodiments of this disclosure relate to a paving device. Background Technology

[0002] With the widespread use of particleboard in people's lives, its quality issues have received increasing attention, leading to higher and higher requirements for particleboard production equipment.

[0003] Currently, the proportion of materials such as paper mulberry and eucalyptus used in the raw materials of particleboard at home and abroad is increasing. After processing, it is difficult to completely separate and remove the bark and phloem from the wood, which seriously affects the quality of the finished particleboard. Utility Model Content

[0004] At least one embodiment of this disclosure provides a paving device, which includes a first material distribution device. The first material distribution device includes a paving chamber and a first circulating mesh belt device. The paving chamber includes an air inlet and an air outlet arranged along a first direction, and a feed inlet and a discharge outlet arranged along a second direction. In the first direction, the feed inlet and the discharge outlet are located between the air inlet and the air outlet, and the feed inlet is located on the side closer to the air inlet. The first circulating mesh belt device is located at the discharge outlet and extends at least partially along the first direction from the middle of the paving chamber toward the air outlet.

[0005] For example, in at least one embodiment of the paving equipment provided in this disclosure, at least a portion of the first circulating mesh belt device extends toward the air outlet beyond the paving chamber.

[0006] For example, in at least one embodiment of the paving equipment provided in this disclosure, the first circulating mesh belt device includes a first mesh belt portion and a second mesh belt portion; the first mesh belt portion extends along the first direction, and the second mesh belt portion is located in the paving chamber and is located between the feed inlet and the air outlet in the first direction, extending in a direction different from the first direction.

[0007] For example, in at least one embodiment of the paving equipment provided in this disclosure, the first circulating mesh belt device further includes a first mesh belt roller, a second mesh belt roller, a third mesh belt roller, and a fourth mesh belt roller; the first mesh belt roller is located at the air outlet or outside the paving chamber, the second and third mesh belt rollers are located at the discharge port, and together with the first mesh belt roller, they support the first mesh belt portion; the fourth mesh belt roller is located inside the paving chamber, wherein the height of the fourth mesh belt roller relative to the discharge port is higher than the height of the second and third mesh belt rollers relative to the discharge port, and the fourth mesh belt roller together with the second and third mesh belt rollers support the second mesh belt portion.

[0008] For example, in at least one embodiment of the paving equipment provided in this disclosure, the first circulating mesh belt device includes a plurality of mesh belt rollers and a mesh belt portion wound on the plurality of mesh belt rollers. The mesh belt portion includes a first guide structure, and at least one of the plurality of mesh belt rollers includes a second guide structure. The first guide structure and the second guide structure cooperate to guide the transmission of the mesh belt portion on the plurality of mesh belt rollers.

[0009] For example, in a paving device provided in at least one embodiment of the present disclosure, the first guide structure includes a guide protrusion disposed on the edge of the mesh belt portion, and the second guide structure includes a guide groove disposed on the edge of at least one of the plurality of mesh belt rollers.

[0010] For example, in at least one embodiment of the paving equipment provided in this disclosure, the first circulating mesh belt device includes a plurality of mesh belt rollers and a mesh belt portion wound on the plurality of mesh belt rollers. The first circulating mesh belt device also includes a first mesh belt monitoring device and a first mesh belt alignment device. The first mesh belt monitoring device is configured to monitor the running trajectory of the mesh belt portion and issue an alignment signal when the running trajectory deviates from a predetermined trajectory. The first mesh belt alignment device is communicatively connected to the first mesh belt monitoring device and is configured to adjust the running trajectory of the mesh belt portion when the alignment signal is received.

[0011] For example, in at least one embodiment of the paving equipment provided in this disclosure, the first material distribution device further includes: a second circulating mesh belt device, which is disposed at the discharge port and at least partially disposed between the first circulating mesh belt device and the air inlet.

[0012] For example, in at least one embodiment of the paving equipment provided in this disclosure, the second circulating mesh belt device includes a third mesh belt portion and a fourth mesh belt portion; the third mesh belt portion extends along the first direction and extends from the middle of the paving chamber toward the air inlet end to the outside of the paving chamber, and the fourth mesh belt portion is located in the paving chamber and is disposed between the first circulating mesh belt device and the air inlet end, extending in a direction different from the first direction.

[0013] For example, in the paving equipment provided in at least one embodiment of this disclosure, the extension direction of at least a portion of the fourth mesh belt portion is parallel to the extension direction of at least a portion of the second mesh belt portion.

[0014] For example, in at least one embodiment of the paving equipment provided in this disclosure, the first mesh belt portion and the third mesh belt portion are configured to run in different directions.

[0015] For example, in at least one embodiment of the paving equipment provided in this disclosure, the second circulating mesh belt device further includes a fifth mesh belt roller, a sixth mesh belt roller, a seventh mesh belt roller, and an eighth mesh belt roller; the fifth mesh belt roller is located outside the paving chamber, the sixth and seventh mesh belt rollers are located at the discharge port and together with the fifth mesh belt roller support the third mesh belt portion, and the eighth mesh belt roller is located inside the paving chamber, wherein the height of the eighth mesh belt roller relative to the discharge port is higher than the height of the sixth and seventh mesh belt rollers relative to the discharge port, and the eighth mesh belt roller together with the sixth and seventh mesh belt rollers support the fourth mesh belt portion.

[0016] For example, in at least one embodiment of the paving equipment provided in this disclosure, the eighth mesh belt roller and the fourth mesh belt roller are at the same height relative to the discharge port, and the third mesh belt roller and the seventh mesh belt roller are at the same height relative to the discharge port.

[0017] For example, in at least one embodiment of the paving equipment provided in this disclosure, the air inlet and the air outlet are arranged opposite to each other in the first direction, the air inlet includes an air inlet grille, and the air outlet includes an air duct.

[0018] For example, in at least one embodiment of the paving equipment provided in this disclosure, the mesh belt portion of the first circulating mesh belt device includes a mesh belt woven from metal wires wrapped in non-metallic material.

[0019] For example, the paving equipment provided in at least one embodiment of this disclosure further includes a second material distributing device and at least one third material distributing device, wherein the first material distributing device and the second material distributing device have the same structure, and in the first direction, the at least one third material distributing device is located between the first material distributing device and the second material distributing device, wherein the first material distributing device and the second material distributing device are surface material distributing devices, and the at least one third material distributing device is a core material distributing device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings of the embodiments will be briefly described below. Obviously, the drawings described below only relate to some embodiments of this disclosure and are not intended to limit this disclosure.

[0021] Figure 1 This is a schematic diagram of the structure of a paving device provided in at least one embodiment of the present disclosure;

[0022] Figure 2 This is a schematic diagram of the structure of another paving device provided in at least one embodiment of the present disclosure;

[0023] Figure 3A schematic diagram of the mesh belt portion of the first material distribution device of the paving equipment provided in at least one embodiment of the present disclosure;

[0024] Figure 4 A schematic diagram of the structure of the mesh belt roller of the first material distribution device of the paving equipment provided in at least one embodiment of the present disclosure;

[0025] Figure 5 A schematic diagram of the structure of another paving device provided in at least one embodiment of this disclosure; and

[0026] Figure 6 This is a structural schematic diagram of another paving device provided for at least one embodiment of the present disclosure. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0028] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as “upper,” “lower,” “left,” and “right” are used only to indicate relative positional relationships, and these relative positional relationships may change accordingly when the absolute position of the described objects changes.

[0029] In some implementations, particleboard can be formed into a composite board, comprising a three-layer structure consisting of a substrate portion as the middle layer and veneer portions on both sides made of compressed bulk materials. This type of composite board has excellent environmental properties and is similar to solid wood, primarily used for manufacturing high-end furniture and other products.

[0030] In some implementations, particleboard laying equipment uses airflow laying equipment, which mainly relies on airflow for laying. As the material falls, a portion of the airflow is directly blown onto the board blank under pressure. However, as mentioned earlier, due to the increased proportion of materials such as paper mulberry and eucalyptus in the raw materials for particleboard, it is difficult to completely separate and remove the bark and bast from the wood after processing. In most of the raw materials used to form the surface layer of shavings, there are often some filamentous long fibers and fluff mixed in. During laying, these fibers and fluff will become entangled on the laying vibrating screen, affecting the laying effect. Furthermore, under the action of airflow, these long fibers and fluff will form fiber balls after a long period of operation, eventually causing mottling on the board surface, affecting the quality of the board and the finishing / veneer effect.

[0031] For example, in some implementations, when the production line is running, the surface airflow blows horizontally toward the material in the opposite direction of the production line. The pressure generated when the material falls changes the direction of part of the airflow in the paving chamber, causing it to blow toward the surface of the slab. The slender fibers on the slab surface slowly form spherical shapes, which will form a mottled phenomenon after the slab is hot-pressed, affecting the quality of the board.

[0032] At least one embodiment of this disclosure provides a paving device, which includes a first material distribution device, a paving chamber, and a first circulating mesh belt device. The paving chamber includes an air inlet and an air outlet arranged along a first direction, and a feed inlet and a discharge outlet arranged along a second direction. In the first direction, the feed inlet and the discharge outlet are located between the air inlet and the air outlet, and the feed inlet is located on the side closer to the air inlet. The first circulating mesh belt device is located at the discharge outlet and extends at least partially along the first direction from the middle of the paving chamber toward the air outlet.

[0033] In the paving equipment provided in this embodiment, by setting a first circulating mesh belt device, lighter shavings from the material entering from the feed inlet will fall onto the first circulating mesh belt device away from the feed inlet with the airflow. As the first circulating mesh belt device operates, the fine fibers are sucked away / recovered from the air outlet, preventing them from falling onto the paving belt. At the same time, the first circulating mesh belt device can also block the airflow generated on the surface of the slab when the material falls, isolating the downward airflow from the surface slab, avoiding the formation of fiber balls, and improving the formation quality of the slab. In addition, the first circulating mesh belt device makes the airflow in the paving chamber more uniform and stable, and the circulating operation of the first circulating mesh belt device can make the formed surface material more uniform.

[0034] The paving equipment provided in this disclosure will be described below through several specific embodiments.

[0035] This disclosure provides at least one embodiment of a paving device. Figure 1 A schematic diagram of the paving equipment is shown, as follows: Figure 1As shown, the paving equipment includes a first material distributing device 100, which is disposed above the paving belt 11 and is used to distribute materials onto the paving belt 11.

[0036] like Figure 1 As shown, the first material distribution device 100 includes a paving chamber 1 and a first circulating mesh belt device 101. The paving chamber 1 includes an air inlet N1 and an air outlet N2 arranged along a first direction R1, and a feed inlet M1 and a discharge outlet M2 arranged along a second direction R2. For example, the first direction R1 is the running direction of the paving belt 11. In the first direction R1, the feed inlet M1 and the discharge outlet M2 are located between the air inlet N1 and the air outlet N2. The feed inlet M1 is located on the side close to the air inlet N1, for example, adjacent to the air inlet N1. The first circulating mesh belt device 101 is located at the discharge outlet M2. At least a portion of the first circulating mesh belt device 101 extends from the middle of the paving chamber 1 to the air outlet N2 along the first direction R1.

[0037] In the embodiments of this disclosure, the middle part of the paving chamber 1 refers to the portion between the air inlet N1 and the air outlet N2. By setting the first circulating mesh belt device 101 at a distance from the inlet M1, for example, closer to the air outlet N2, and at the outlet M2, that is, near the slab formed on the paving belt 11, the lighter shavings from the material falling from the inlet M1 can fall onto the first circulating mesh belt device 101 at a distance from the inlet N1, and as the first circulating mesh belt device 101 moves... The air outlet N2 draws away the slender fibers, preventing them from falling onto the paving belt 11 and thus avoiding the formation of fiber balls. At the same time, the first circulating mesh belt device 101 can also block the airflow generated on the surface of the slab when the material falls, isolating the downward airflow from the slab formed on the paving belt 11, further preventing the formation of fiber balls and improving the quality of slab formation. In addition, the first circulating mesh belt device 101 can make the airflow in the paving chamber 1 more uniform and stable, making the surface material paved on the paving belt 11 more uniform.

[0038] For example, in some embodiments, the first circulating mesh belt device 101 is distributed in the middle and rear positions of the paving chamber 1, and the first circulating mesh belt device 101 is configured to operate continuously, that is, during the paving process, as material is continuously added from the feed inlet M1, the first circulating mesh belt device 101 runs in a cyclical manner. For example, a drive device such as a drive motor can be used to drive the first circulating mesh belt device 101 to run in a cyclical manner continuously.

[0039] For example, in some embodiments, such as Figure 1As shown, at least a portion of the first circulating mesh belt device 101 extends outward from the outlet end N2 into the paving chamber 1. This allows the shavings / long fibers on the portion of the mesh belt extending out of the paving chamber 1 to be cleaned / recycled promptly and effectively, helping the first circulating mesh belt device 101 maintain a stable screening effect and airflow regulation function.

[0040] For example, in some embodiments, such as Figure 1 As shown, the first circulating mesh belt device 101 includes a plurality of mesh belt rollers 7-10 and mesh belt sections 111 and 121 wound on the plurality of mesh belt rollers 7-10. The plurality of mesh belt rollers 7-10 drive the mesh belt sections 111 and 121 to reciprocate in a predetermined direction.

[0041] For example, in Figure 1 In this embodiment, the first circulating mesh belt device 101 includes a first mesh belt portion 111 and a second mesh belt portion 121. The first mesh belt portion 111 extends along a first direction R1, for example, extending outside the paving chamber 1. The second mesh belt portion 121 is located inside the paving chamber 1 and is situated between the inlet M1 and the outlet N2 in the first direction R1, extending in a direction different from the first direction R1. Thus, the distance between the second mesh belt portion 121 and the paving belt 11 is greater than the distance between the first mesh belt portion 111 and the paving belt 11. The second mesh belt portion 121 can receive / screen the material that floats with the airflow after falling from the inlet M1 at a higher position, and can also block the airflow and material. The first mesh belt portion 111 can receive / screen the material that floats with the airflow after falling from the inlet M1 at a position close to the paving belt 11, and can isolate the downward airflow from the surface slab formed on the paving belt 11, so that the first circulating mesh belt device 101 as a whole has a better effect on screening materials and regulating airflow.

[0042] For example, such as Figure 1 As shown, the first circulating mesh belt device 101 also includes a first mesh belt roller 8, a second mesh belt roller 9, a third mesh belt roller 10, and a fourth mesh belt roller 7; the first mesh belt roller 8 is located outside the paving chamber 1, the second mesh belt roller 9 and the third mesh belt roller 10 are located at the discharge port M2, and the second mesh belt roller 9 and the third mesh belt roller 10 together with the first mesh belt roller 8 support the first mesh belt portion 111; the fourth mesh belt roller 7 is located inside the paving chamber 1, and the height of the fourth mesh belt roller 7 relative to the discharge port M2 is higher than the height of the second mesh belt roller 9 and the third mesh belt roller 10 relative to the discharge port M2, and the fourth mesh belt roller 7 together with the second mesh belt roller 9 and the third mesh belt roller 10 together support the second mesh belt portion 121.

[0043] For example, in other embodiments, such as Figure 2As shown, the first mesh belt roller 8 can also be located at the air outlet N2, for example, in the paving chamber 1 near the air outlet N2, or below the air outlet N2 and directly opposite the air outlet N2, so that the first circulating mesh belt device 101 is distributed as widely as possible in the middle and rear of the paving chamber 1, so as to fully realize the effect of receiving / screening materials and regulating airflow in the middle and rear position.

[0044] For example, such as Figure 1 and Figure 2 As shown, the first mesh belt section 111, supported by the second mesh belt roller 9, the third mesh belt roller 10, and the first mesh belt roller 8, is basically parallel to the paving belt 11 and close to the surface of the slab formed on the paving belt 11. The running direction of the second mesh belt section 121, supported by the fourth mesh belt roller 7, the second mesh belt roller 9, and the third mesh belt roller 10, is different from the first direction R1. For example, the fourth mesh belt roller 7 is arranged in a triangle with the second mesh belt roller 9 and the third mesh belt roller 10. The fourth mesh belt roller 7 is positioned close to the upper surface of the paving chamber 1, for example, at a very small distance from the upper surface of the paving chamber 1. This distance can be approximately equal to the diameter of the fourth mesh belt roller 7, in order to block airflow, block material passage, and prevent airflow from blowing towards the paving belt 11 and forming fiber balls and other undesirable phenomena.

[0045] For example, in some embodiments, in order to ensure that the mesh belt portion can move accurately along the path defined by multiple mesh belt rollers, and to prevent the mesh belt from deviating and causing wear and deformation, such as... Figure 1 As shown, the first circulating mesh belt device 101 may further include a first mesh belt monitoring device 12 and a first mesh belt alignment device 13; the first mesh belt monitoring device 12 is configured to monitor the running trajectory of the mesh belt section, namely the first mesh belt section 111 and the second mesh belt section 121, and to issue an alignment signal when the running trajectory deviates from the predetermined trajectory; the first mesh belt alignment device 13 is communicatively connected to the first mesh belt monitoring device 12 and is configured to adjust the running trajectory of the mesh belt section when it receives the alignment signal, so that the mesh belt section always drives on the accurate trajectory.

[0046] For example, in some embodiments, the first conveyor belt monitoring device 12 may include a sensor and a monitoring element. The monitoring element is disposed against the edge of the conveyor belt section. When the conveyor belt section deviates, the position of the monitoring element will shift. The sensor is, for example, a position sensor, such as an infrared sensor. The sensor can sense the position of the monitoring element, and after sensing the positional shift of the monitoring element, it sends an adjustment signal to cause the first conveyor belt adjustment device 13 to perform corresponding actions. The first conveyor belt adjustment device 13 may include a cylinder and a pressure roller controlled by the cylinder, thereby adjusting the deviated conveyor belt section by pneumatically controlling the pressure roller to ensure its normal operation. For example, the air source can control the airflow through a filter pressure reducing valve or a solenoid valve, and supply compressed air to the cylinder through an air pipe, causing the cylinder piston rod to reciprocate, thereby controlling the pressure roller to press the conveyor belt section to prevent the conveyor belt section from deviating or to adjust the deviated conveyor belt section.

[0047] For example, in other embodiments, in order to enable the mesh belt portion to move accurately along the path defined by the multiple mesh belt rollers, corresponding guide structures may be provided on the mesh belt portion and the mesh belt rollers to enable the mesh belt portion to be driven along the designed path and avoid mesh belt deviation.

[0048] For example, Figure 3 This diagram illustrates the structure of a mesh belt portion provided in at least one embodiment of the present disclosure. Figure 4 A schematic diagram of the structure of a mesh belt roller provided in at least one embodiment of this disclosure is shown, such as... Figure 3 As shown, the mesh belt sections, such as the first mesh belt section 111 and the second mesh belt section 121, include a first guide structure G1, such as... Figure 4 As shown, at least one (e.g., each) of the plurality of mesh belt rollers 7-10 includes a second guide structure G2, which cooperates with the first guide structure G1 to guide the transmission of the mesh belt portion on the plurality of mesh belt rollers 7-10.

[0049] For example, one of the first guide structure G1 and the second guide structure G2 includes a guide protrusion, and the other includes a guide groove that mates with the guide protrusion. For example, in Figure 3 and Figure 4 In the example, the first guide structure G1 includes guide protrusions disposed on the edges of the mesh belt portions, namely the first mesh belt portion 111 and the second mesh belt portion 121, and the second guide structure G2 includes guide grooves disposed on the edges of at least one of the plurality of mesh belt rollers 7-10. The guide protrusions can be engaged in the guide grooves so that, as the plurality of mesh belt rollers 7-10 rotate, the mesh belt portions can be driven along a designed path by the constraint of the guide protrusions and guide grooves, preventing mesh belt deviance.

[0050] For example, in some embodiments, 7-10 of the multiple mesh belt rollers can be in the form of hollow rollers (or squirrel cage rollers). Hollow rollers do not affect the airflow and the falling of materials, and can prevent material from accumulating at the contact point between the mesh belt and the mesh belt rollers, so as to ensure the normal operation of the mesh belt.

[0051] For example, in some embodiments, the mesh belt portion of the first circulating mesh belt device 101 includes a mesh belt woven from metal wires wrapped in non-metallic material. This mesh belt can have a uniform mesh structure to achieve homogenization and sieving effects on airflow and materials; furthermore, the mesh belt has a certain degree of flexibility while possessing high strength, making it resistant to deformation. For example, the non-metallic material can include organic materials such as polyurethane, and the metal wires can be made of metal or alloy materials such as steel wire, with a diameter of approximately 1mm-2mm. For example, mesh belts of different specifications (e.g., different mesh sizes) can be designed according to the sieving requirements of the materials to achieve different sieving effects. For example, the edges and joints of the mesh belt can be reinforced to make the mesh belt portion more robust and less prone to unraveling and deformation.

[0052] For example, in some examples, the aperture size of the mesh belt section can be 6mm*6mm, 8mm*8mm, 6mm*8mm, 8mm*10mm, 10mm*10mm, etc. The edges of the mesh belt section can be reinforced with metal wire. In this case, the metal wires at the edges are denser, and the non-metallic materials covering the metal wires can be bonded together to form a reinforced edge, avoiding undesirable phenomena such as edge spreading or breakage.

[0053] For example, in some embodiments, the first guide structure G1 described above, such as a strip-shaped guide protrusion, can be formed in a mesh belt woven from metal wires wrapped in non-metallic material.

[0054] For example, in some embodiments, such as Figure 1 As shown, the first material distribution device 100 may further include a second circulating mesh belt device 102, which is disposed at the discharge port M2 and at least partially disposed between the first circulating mesh belt device 101 and the air inlet N1. For example, the second circulating mesh belt device 102 may also include a portion extending toward the air inlet N1, for example, extending outside the paving chamber 1.

[0055] Therefore, the second circulating mesh belt device 102 can receive or screen some of the material that falls directly from the feed port M1, and use the circulating mesh belt to carry the material and impurities such as bark and lint attached to the mesh belt out of the paving chamber 1 for cleaning. This can solve the problem that the fine fibers of the paving material are entangled in the mesh belt and affect the paving effect.

[0056] In the embodiments of this disclosure, the first material distributing device 100 and the second circulating mesh belt device 102 are respectively positioned at the front and rear of the paving chamber 1, and cooperate with each other. The second circulating mesh belt device 102 can receive or screen larger / heavier wood shavings / fibers that fall from the material entering from the feed inlet M1. These wood shavings / fibers can be cleaned by the transmission of the second circulating mesh belt device 102. At the same time, the first circulating mesh belt device 101 can receive / screen lighter wood shavings / long fibers that fall from the feed inlet M1, and as the first circulating mesh belt device 101 operates, they are discharged from the air outlet. End N2 sucks away the slender fibers, preventing them from falling onto the paving belt 11. Thus, through the cooperation of the first circulating mesh belt device 101 and the second circulating mesh belt device 102, materials that do not meet the requirements entering from the feed inlet M1 can also be effectively screened and removed, making the materials falling onto the paving belt 11 more compliant, thereby improving the quality of the formed slab. In addition, the first circulating mesh belt device 101 and the second circulating mesh belt device 102 can play a role in regulating airflow at different positions, making the materials scattered on the paving belt 11 more uniform, thereby making the formed slab more uniform.

[0057] for Figure 1 In this embodiment, if only the second circulating mesh belt device 102 is provided and the first circulating mesh belt device 101 is not provided, the problem of fiber balls on the surface of the slab cannot be solved. The fine fibers and fluff in the material, due to their light weight, will fall onto the slab that is far from the feed inlet M1, forming fiber balls and affecting the quality of the slab.

[0058] For example, in some embodiments, the second circulating mesh belt device 102 is distributed at the front of the paving chamber 1, that is, near the air inlet end N1. For example, as Figure 1 As shown, the second circulating mesh belt device 102 includes a third mesh belt section 112 and a fourth mesh belt section 122. The third mesh belt section 112 extends along a first direction R1 and extends from the middle of the paving chamber 1 towards the air inlet N1 to the outside of the paving chamber 1. The fourth mesh belt section 122 is located inside the paving chamber 1 and is disposed between the first circulating mesh belt device 101 and the air inlet N1. The fourth mesh belt section 122 extends in a direction different from the first direction R1. Therefore, the material on the mesh belt section extending outside the paving chamber 1 can be cleaned in a timely manner to ensure that the third mesh belt section 112 and the fourth mesh belt section 122 have a stable and reliable function of screening materials and regulating airflow.

[0059] For example, in some embodiments, such as Figure 1As shown, the extension direction of the portion of the fourth mesh belt section 122 near the second mesh belt section 121 is parallel to the extension direction of the portion of the second mesh belt section 121 near the fourth mesh belt section 122, and is inclined relative to the extension direction of the paving belt 11. Therefore, the first circulating mesh belt device 101 and the second circulating mesh belt device 102 form a whole, preventing unqualified materials from passing through the gap between the first circulating mesh belt device 101 and the second circulating mesh belt device 102, thus ensuring the material screening and airflow regulation effects of the first circulating mesh belt device 101 and the second circulating mesh belt device 102.

[0060] For example, such as Figure 1 As shown, the first mesh belt section 111 and the third mesh belt section 112 are configured to run in different directions. For example, the first mesh belt section 111 runs in the first direction R1 towards the air outlet N2. Figure 1 The diagram shows counter-clockwise operation, with the third mesh belt section 112 moving along the first direction R1 towards the air inlet N1. Figure 1 The diagram shows clockwise operation to facilitate the transfer of material from the mesh belt section to outside the paving chamber 1, where it can be cleaned and recycled.

[0061] For example, such as Figure 1 As shown, the second circulating mesh belt device 102 also includes a fifth mesh belt roller 15, a sixth mesh belt roller 16, a seventh mesh belt roller 17, and an eighth mesh belt roller 18; the fifth mesh belt roller 15 is located outside the paving chamber 1, the sixth mesh belt roller 16 and the seventh mesh belt roller 17 are located at the discharge port M2, the sixth mesh belt roller 16 and the seventh mesh belt roller 17 together with the fifth mesh belt roller 15 support the third mesh belt section 112, the eighth mesh belt roller 18 is located inside the paving chamber 1, the height of the eighth mesh belt roller 18 relative to the discharge port M2 is higher than the height of the sixth mesh belt roller 16 and the seventh mesh belt roller 17 relative to the discharge port M2, the eighth mesh belt roller 18 together with the sixth mesh belt roller 16 and the seventh mesh belt roller 17 together support the fourth mesh belt section 122.

[0062] For example, the eighth mesh belt roller 18 is positioned near the upper surface of the paving chamber 1, for example, at a very small distance from the upper surface of the paving chamber 1, which can be approximately equal to the diameter of the eighth mesh belt roller 18, in order to block airflow and prevent material from passing through.

[0063] For example, in some embodiments, such as Figure 1As shown, the eighth mesh belt roller 18 and the fourth mesh belt roller 7 are at the same height relative to the discharge port M2 and are arranged adjacent to each other. Similarly, the third mesh belt roller 10 and the seventh mesh belt roller 17 are at the same height relative to the discharge port M2 and are arranged adjacent to each other. For example, the distance between the eighth mesh belt roller 18 and the fourth mesh belt roller 7 is approximately equal to the distance between the third mesh belt roller 10 and the seventh mesh belt roller 17. This distance is relatively small, for example, smaller than the diameter of the fourth mesh belt roller 7. Thus, the first circulating mesh belt device 101 and the second circulating mesh belt device 102 are fully distributed throughout the paving chamber 1 to screen the material paved on the paving belt 11 as comprehensively as possible and to regulate the airflow to make the material paved on the paving belt 11 more uniform.

[0064] For example, in other embodiments, the mesh belt rollers of the first circulating mesh belt device 101 and the second circulating mesh belt device 102 may also employ other numbers and other arrangements, such as arrangement positions, to achieve different screening materials and airflow regulation effects. For example, Figure 5 This is a structural schematic diagram of another paving device provided in at least one embodiment of the present disclosure, such as... Figure 5 As shown, in this embodiment, different airflow adjustment effects are achieved by adjusting the position and / or spacing of the mesh belt rollers 9 and 10; for example, the fourth mesh belt roller 7 is arranged in a right-angled triangle with the second mesh belt roller 9 and the third mesh belt roller 10, and the extension direction of the mesh belt portion supported by the fourth mesh belt roller 7 and the third mesh belt roller 10 is basically along the second direction R2. Compared to Figure 1 Implementation examples, Figure 5 In this embodiment, the distance between the mesh belt roller 9 and the mesh belt roller 10 is closer, which can improve the wind-blocking effect of the mesh belt section to achieve different airflow adjustment effects.

[0065] For example, in other embodiments, the first circulating mesh belt device 101 may also include more mesh belt rollers, such as five mesh belt rollers, six mesh belt rollers, etc., to make the arrangement of the mesh belt section more flexible; for example, the second circulating mesh belt device 102 may also include more mesh belt rollers, and the embodiments of this disclosure do not specifically limit this.

[0066] For example, in some embodiments, the specifications of the mesh belt portion of the first circulating mesh belt device 101 and the mesh belt portion of the second circulating mesh belt device 102 may be different, such as having different pore sizes. For instance, the mesh size of the mesh belt portion of the first circulating mesh belt device 101 (first mesh belt portion 111 and second mesh belt portion 121) may be smaller than the mesh size of the mesh belt portion of the second circulating mesh belt device 102 (third mesh belt portion 112 and fourth mesh belt portion 122), so that the mesh belt portion of the first circulating mesh belt device 101 and the mesh belt portion of the second circulating mesh belt device 102 can achieve different screening effects for different materials at different positions.

[0067] For example, in some embodiments, such as Figure 1As shown, the second circulating conveyor belt device 102 may include a second conveyor belt monitoring device 19 and a second conveyor belt alignment device 20. The second conveyor belt monitoring device 19 is configured to monitor the running trajectory of the conveyor belt sections, namely the third conveyor belt section 121 and the fourth conveyor belt section 122, and sends an alignment signal when the running trajectory deviates from the predetermined trajectory. The second conveyor belt alignment device 20 is communicatively connected to the second conveyor belt monitoring device 19 and is configured to adjust the running trajectory of the conveyor belt section upon receiving the alignment signal, so that the conveyor belt section always drives on the accurate trajectory. The specific forms of the second conveyor belt monitoring device 19 and the second conveyor belt alignment device 20 can be referred to the first conveyor belt monitoring device 12 and the first conveyor belt alignment device 13, and will not be described again here.

[0068] Alternatively, in other embodiments, the third mesh belt portion 121 and the fourth mesh belt portion 122 may include a third guide structure, and at least one (e.g., each) of the plurality of mesh belt rollers 15-18 includes a fourth guide structure. The third and fourth guide structures cooperate to guide the transmission of the mesh belt portions on the plurality of mesh belt rollers 15-18. The specific forms of the third and fourth guide structures can be referred to the first and second guide structures, and will not be repeated here.

[0069] For example, in some other embodiments, the first circulating mesh belt device 101 and the second circulating mesh belt device 102 can also be integrated into a single circulating mesh belt device. In this case, a portion of the circulating mesh belt device can extend from the middle of the paving chamber 1 to the air outlet N2 to realize the function of the first circulating mesh belt device 101, and another portion can extend from the middle of the paving chamber 1 to the air outlet N2 to realize the function of the second circulating mesh belt device 102. In this case, different material screening and airflow adjustment effects can be achieved by arranging multiple mesh belt rollers.

[0070] For example, such as Figure 1 As shown, the air inlet end N1 and the air outlet end N2 are arranged opposite each other in the first direction R1. The air inlet end N1 includes an air inlet grille 6, configured to blow air into the paving chamber 1 at a predetermined wind speed. The air outlet end N2 includes an air extraction device 3, configured to extract air from the paving chamber 1 at a predetermined speed. Thus, the air inlet grille 6 and the air extraction device 3 can form a certain airflow within the paving chamber 1. For example, the first circulating mesh belt device 101 and the second circulating mesh belt device 102 can adjust the airflow within the paving chamber 1 to make the material paving more uniform and avoid defects such as fiber balls.

[0071] For example, Figure 6 A schematic diagram of the structure of another paving device provided in at least one embodiment of the present disclosure is shown, such as... Figure 6As shown, the paving equipment may further include a second material distributing device 200 and at least one third material distributing device 300, wherein the first material distributing device 100 and the second material distributing device 200 have the same structure. At least one third material distributing device 300 may include one or more third material distributing devices 300.

[0072] For example, in some embodiments, such as Figure 6 As shown, the first material distribution device 100 and the second material distribution device 200 can be symmetrically arranged. For example, in the first direction R1, the third material distribution device 300 is located between the first material distribution device 100 and the second material distribution device 200. The first material distribution device 100 and the second material distribution device 200 are surface material distribution devices used to form a surface slab, and at least one third material distribution device 300 is a core material distribution device used to form a core slab. The structure of the third material distribution device 300 is different from that of the first material distribution device 100 and the second material distribution device 200. For example, the third material distribution device 300 may not include the first circulating mesh belt device 101, or it may not include the second circulating mesh belt device 102.

[0073] Therefore, the paving equipment provided in this embodiment can form a composite panel, which includes a substrate portion (i.e., core layer blank) formed by a third material distribution device 300 as an intermediate layer and a decorative portion (i.e., surface layer blank) located on both sides of the substrate portion formed by a first material distribution device 100 and a second material distribution device 200, thereby forming a three-layer structure. Through the above-described design of the first circulating mesh belt device 101 and the second circulating mesh belt device 102 in the first material distribution device 100 and the second material distribution device 200, the decorative portion / surface layer blank of the formed composite panel can be made more uniform, thereby improving the forming quality of the composite panel.

[0074] The following points also need to be explained:

[0075] (1) The accompanying drawings of the embodiments of this disclosure only involve the structures involved in the embodiments of this disclosure. Other structures can be referred to the general design.

[0076] (2) For clarity, the thickness of layers or regions in the drawings used to describe embodiments of the present disclosure is enlarged or reduced, i.e., these drawings are not drawn to actual scale.

[0077] (3) Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0078] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. The scope of protection of this disclosure shall be determined by the scope of the claims.

Claims

1. A paving device, characterized in that, Includes a first material distributing device, the first material distributing device comprising: The paving chamber includes an air inlet and an air outlet arranged along a first direction, and a material inlet and a material outlet arranged along a second direction. In the first direction, the material inlet and the material outlet are located between the air inlet and the air outlet, with the material inlet positioned on a side closer to the air inlet. A first circulating mesh belt device is disposed at the discharge port and extends at least partially along the first direction from the middle of the paving chamber toward the air outlet.

2. The paving equipment according to claim 1, characterized in that, At least a portion of the first circulating mesh belt device extends toward the air outlet beyond the paving chamber.

3. The paving equipment according to claim 1 or 2, characterized in that, The first circulating mesh belt device includes: The first mesh belt portion extends along the first direction, and The second mesh belt portion is located within the paving chamber and is situated between the feed inlet and the air outlet in the first direction, extending in a direction different from the first direction.

4. The paving equipment according to claim 3, characterized in that, The first circulating mesh belt device further includes: The first mesh belt roller is located at the air outlet end or outside the paving chamber. The second and third mesh belt rollers are located at the discharge port and, together with the first mesh belt roller, support the first mesh belt portion. The fourth mesh belt roller is located in the paving chamber, wherein the height of the fourth mesh belt roller relative to the discharge port is higher than the height of the second mesh belt roller and the third mesh belt roller relative to the discharge port, and the fourth mesh belt roller, together with the second mesh belt roller and the third mesh belt roller, supports the second mesh belt portion.

5. The paving equipment according to claim 1 or 2, characterized in that, The first circulating mesh belt device includes a plurality of mesh belt rollers and a mesh belt portion wound around the plurality of mesh belt rollers. The mesh belt portion includes a first guide structure, and at least one of the plurality of mesh belt rollers includes a second guide structure. The first guide structure and the second guide structure cooperate to guide the transmission of the mesh belt portion on the plurality of mesh belt rollers.

6. The paving equipment according to claim 5, characterized in that, The first guide structure includes a guide protrusion disposed on the edge of the mesh belt portion, and the second guide structure includes a guide groove disposed on the edge of at least one of the plurality of mesh belt rollers.

7. The paving equipment according to claim 1 or 2, characterized in that, The first circulating mesh belt device includes a plurality of mesh belt rollers and a mesh belt portion wound around the plurality of mesh belt rollers. The first circulating mesh belt device further includes: The first conveyor belt monitoring device is configured to monitor the running trajectory of the conveyor belt section, and to issue an adjustment signal when the running trajectory deviates from a predetermined trajectory. The first mesh belt alignment device is communicatively connected to the first mesh belt monitoring device and is configured to adjust the running trajectory of the mesh belt section upon receiving the alignment signal.

8. The paving equipment according to claim 3, characterized in that, The first material distribution device further includes: The second circulating mesh belt device is located at the discharge port and is at least partially located between the first circulating mesh belt device and the air inlet.

9. The paving equipment according to claim 8, characterized in that, The second circulating mesh belt device includes: The third mesh belt portion extends along the first direction and extends from the center of the paving chamber toward the air inlet end to outside the paving chamber. The fourth mesh belt section is located in the paving chamber and is disposed between the first circulating mesh belt device and the air inlet end, extending in a direction different from the first direction.

10. The paving equipment according to claim 9, characterized in that, The extension direction of at least a portion of the fourth mesh belt portion is parallel to the extension direction of at least a portion of the second mesh belt portion.

11. The paving equipment according to claim 9, characterized in that, The first mesh belt section and the third mesh belt section are configured to run in different directions.

12. The paving equipment according to claim 9, characterized in that, The second circulating mesh belt device further includes: The fifth mesh belt roller is located outside the paving chamber. The sixth and seventh mesh belt rollers, located at the discharge port, together with the fifth mesh belt roller, support the third mesh belt section. The eighth mesh belt roller is located in the paving chamber, wherein the height of the eighth mesh belt roller relative to the discharge port is higher than the height of the sixth mesh belt roller and the seventh mesh belt roller relative to the discharge port, and the eighth mesh belt roller, together with the sixth mesh belt roller and the seventh mesh belt roller, supports the fourth mesh belt section.

13. The paving equipment according to claim 12, characterized in that, The first circulating mesh belt device further includes: The first mesh belt roller is located at the air outlet end or outside the paving chamber. The second and third mesh belt rollers are located at the discharge port and, together with the first mesh belt roller, support the first mesh belt portion. The fourth mesh belt roller is located in the paving chamber, wherein the height of the fourth mesh belt roller relative to the discharge port is higher than the height of the second mesh belt roller and the third mesh belt roller relative to the discharge port, and the fourth mesh belt roller, together with the second mesh belt roller and the third mesh belt roller, supports the second mesh belt portion; The eighth mesh belt roller and the fourth mesh belt roller are at the same height relative to the discharge port. The third and seventh mesh belt rollers are at the same height relative to the discharge port.

14. The paving equipment according to claim 1 or 2, characterized in that, The air inlet and the air outlet are arranged opposite to each other in the first direction. The air inlet end includes an air inlet grille, and the air outlet end includes an air duct device.

15. The paving equipment according to claim 1 or 2, characterized in that, The mesh belt portion of the first circulating mesh belt device includes a mesh belt woven from metal wires wrapped in non-metallic material.

16. The paving equipment according to claim 1 or 2, characterized in that, It also includes a second material distributing device and at least one third material distributing device. The first material distributing device and the second material distributing device have the same structure. In the first direction, the at least one third material distributing device is located between the first material distributing device and the second material distributing device. The first material distributing device and the second material distributing device are surface material distributing devices, and the at least one third material distributing device is a core material distributing device.

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