Paving equipment

Abstract

Paving equipment comprises a first material scattering device, the first material scattering device comprises a paving chamber and a first circulating mesh belt device, the paving chamber comprises an air inlet end and an air outlet end which are arranged in the first direction and a feeding port and a discharging port which are arranged in the second direction, and in the first direction, the air inlet end and the air outlet end are communicated with each other. The feeding port and the discharging port are located between the air inlet end and the air outlet end, and the feeding port is formed in the side close to the air inlet end. The first circulating mesh belt device is arranged at the discharge port, and at least part of the first circulating mesh belt device extends from the middle of the paving chamber to the air outlet end in the first direction. The paving equipment has a better paving effect, and the formed plate blank is more uniform and better in quality.

Description

Technical Field

[0001] An embodiment of the present disclosure relates to paving equipment. Background Art

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

[0003] At present, the proportion of materials such as paper mulberry and eucalyptus used in the raw materials of particle boards at home and abroad has increased. After processing, their bark and phloem parts are difficult to completely separate and remove from the wood parts, which seriously affects the quality of the finished particle boards. Summary of the Invention

[0004] At least one embodiment of the present disclosure provides a paving equipment, which includes a first material spreading device, the first material spreading device includes a paving chamber and a first circulating mesh belt device, the paving chamber includes an air inlet end and an air outlet end arranged along a first direction, and a feed port and an outlet end arranged along a second direction, wherein, in the first direction, the feed port and the outlet port are located between the air inlet end and the air outlet end, and the feed port is arranged on a side close to the air inlet end; the first circulating mesh belt device is arranged at the outlet port, and at least partially extends from the middle of the paving chamber to the air outlet end along the first direction.

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

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

[0007] For example, in the paving equipment provided by at least one embodiment of the present disclosure, the first circulating mesh belt device also 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 mesh belt roller and the third mesh belt roller are located at the discharge port, and together with the first mesh belt roller, they support the first mesh belt part; 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, the second mesh belt roller and the third mesh belt roller jointly support the second mesh belt part.

[0008] For example, in the paving equipment provided by at least one embodiment of the present 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 the paving equipment provided in at least one embodiment of the present disclosure, the first guide structure includes a guide protrusion provided on the edge of the mesh belt portion, and the second guide structure includes a guide groove provided on the edge of at least one of the multiple mesh belt rollers.

[0010] For example, in the paving equipment provided by at least one embodiment of the present 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, and the first circulating mesh belt device also includes a first mesh belt monitoring device and a first mesh belt deviation adjustment device; the first mesh belt monitoring device is configured to monitor the running trajectory of the mesh belt portion, and to send an adjustment signal when the running trajectory deviates from a predetermined trajectory, and the first mesh belt deviation adjustment 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 receiving the adjustment signal.

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

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

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

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

[0015] For example, in the paving equipment provided by at least one embodiment of the present disclosure, the second circulating mesh belt device also 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 mesh belt roller and the seventh mesh belt roller are located at the discharge port, and jointly support the third mesh belt part with the fifth mesh belt roller, and 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, the sixth mesh belt roller and the seventh mesh belt roller jointly support the fourth mesh belt part.

[0016] For example, in the paving equipment provided by at least one embodiment of the present 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 the paving equipment provided by at least one embodiment of the present disclosure, the air inlet end and the air outlet end are arranged relative to each other in the first direction, the air inlet end includes an air inlet grille, and the air outlet end includes an air induction device.

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

[0019] For example, the paving equipment provided in at least one embodiment of the present disclosure also includes a second material scattering device and at least one third material scattering device, wherein the first material scattering device and the second material scattering device have the same structure, and in the first direction, the at least one third material scattering device is located between the first material scattering device and the second material scattering device, the first material scattering device and the second material scattering device are surface material scattering devices, and the at least one third material scattering device is a core material scattering device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, rather than limiting the present disclosure.

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

[0022] Figure 2 A schematic structural diagram of another paving device provided by at least one embodiment of the present disclosure;

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

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

[0025] Figure 5 A schematic structural diagram of another paving device provided for at least one embodiment of the present disclosure; and

[0026] Figure 6 A schematic structural diagram of yet another paving device provided in at least one embodiment of the present disclosure. DETAILED DESCRIPTION

[0027] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0028] Unless otherwise defined, the technical or scientific terms used in this disclosure should have the usual meanings understood by persons of ordinary skill in the field to which this disclosure belongs. The words "first", "second" and similar terms used in this disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0029] In some embodiments, particleboard can be formed into a composite board, comprising a three-layer structure consisting of a base material portion as the middle layer and two facing portions pressed from bulk materials. This composite board has excellent environmental performance and is similar to solid wood board, and is primarily used in products such as high-end furniture.

[0030] In some embodiments, the particleboard paving equipment adopts air flow paving equipment, which mainly relies on air flow for paving. As the material falls, a part of the air flow is blown directly to the slab under the action of pressure. However, as mentioned above, due to the increase in the proportion of materials such as paper mulberry and eucalyptus in the raw materials of particleboard, it is difficult to completely separate and remove the bark and bast parts from the wood after processing. Most of the raw materials used to form the surface shavings of the finishing part are often mixed with some filamentous long fibers and fluff, which will be entangled on the paving vibration screen during paving, affecting the paving effect; and, under the action of air flow, these long fibers and fluff will form fiber balls after a long period of operation, which will eventually cause a mottled phenomenon on the board surface, affecting the quality of the board and the finishing / veneer effect of the board.

[0031] For example, in some embodiments, 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 by the material when it falls changes the direction of a portion of the airflow in the paving chamber, causing it to blow toward the surface of the slab. The slender fibers on the surface of the slab slowly form into balls, which will form a mottled phenomenon after the slab is hot-pressed, affecting the quality of the board.

[0032] At least one embodiment of the present disclosure provides a paving equipment, which includes a first material spreading device, the first material spreading device includes a paving chamber and a first circulating mesh belt device, the paving chamber includes an air inlet end and an air outlet end arranged along a first direction and a feed port and a discharge port arranged along a second direction, wherein, in the first direction, the feed port and the discharge port are located between the air inlet end and the air outlet end, and the feed port is arranged on a side close to the air inlet end; the first circulating mesh belt device is arranged at the discharge port, and at least partially extends from the middle of the paving chamber to the air outlet end along the first direction.

[0033] In the paving equipment provided by the embodiment of the present disclosure, by setting a first circulating mesh belt device, the lighter shavings in the material entering from the feed port will fall onto the first circulating mesh belt device far away from the feed port with the air flow, and as the first circulating mesh belt device runs, the slender fibers are sucked away / recovered by the air outlet end to prevent 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, isolate the downward airflow from the surface slab, avoid the generation of fiber balls, and improve 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 by the embodiments of the present disclosure will be described below through several specific embodiments.

[0035] At least one embodiment of the present disclosure provides a paving device, Figure 1 The structural diagram of the paving equipment is shown in FIG. Figure 1As shown, the paving equipment includes a first material spreading device 100 , which is arranged above the paving belt 11 and is used to spread material on the paving belt 11 .

[0036] like Figure 1 As shown, the first material spreading 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 port M1 and an 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 port M1 and the outlet M2 are located between the air inlet N1 and the air outlet N2. The feed port M1 is arranged on a side close to the air inlet N1, for example, close to the air inlet N1; the first circulating mesh belt device 101 is arranged at the outlet M2, and 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 embodiment of the present disclosure, the middle part of the paving chamber 1 refers to the part between the air inlet end N1 and the air outlet end N2. By arranging the first circulating mesh belt device 101 at a distance from the feed port M1, for example, closer to the air outlet end N2, and at the discharge port M2, that is, at a position close to the slab formed on the paving belt 11, the lighter shavings after the material falls from the feed port M1 can fall onto the first circulating mesh belt device 101 at a distance from the feed port N1, and as the first circulating mesh belt device 101 moves The air outlet N2 sucks away the slender fibers to prevent them from falling onto the paving belt 11 and thus preventing 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, and isolates the downward airflow from the slab formed on the paving belt 11, further avoiding the formation of fiber balls and improving the formation quality of the slab. Moreover, the first circulating mesh belt device 101 can make the airflow in the paving chamber 1 more uniform and stable, so that the surface material paved on the paving belt 11 is more uniform.

[0038] For example, in some embodiments, the first endless mesh belt device 101 is located in the middle and rear portion of the paving chamber 1 and is configured to operate continuously. That is, during the paving process, as material is continuously added from the feed port M1, the first endless mesh belt device 101 operates reciprocatingly. For example, a drive device such as a drive motor can be used to drive the first endless mesh belt device 101 to operate reciprocatingly.

[0039] For example, in some embodiments, Figure 1As shown, at least a portion of the first circulating mesh belt device 101 extends toward the air outlet end N2 outside the paving chamber 1. Thus, wood shavings / long fibers on the mesh belt portion extending outside the paving chamber 1 can be promptly and effectively cleaned / recovered, helping the first circulating mesh belt device 101 maintain a stable screening effect and airflow regulation function.

[0040] For example, in some embodiments, Figure 1 As shown, the first endless mesh belt device 101 includes a plurality of mesh belt rollers 7-10 and mesh belt sections 111 and 121 wound around 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 the 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 within the paving chamber 1 and, in the first direction R1, between the feed port M1 and the air outlet N2, extending in a direction different from the first direction R1. Thus, the second mesh belt portion 121 is located farther from the paving belt 11 than the first mesh belt portion 111. The second mesh belt portion 121 can receive and screen materials that are carried along by the airflow after dropping from the feed port M1 at a higher position and can also block the airflow and materials. The first mesh belt portion 111 can receive and screen materials that are carried along by the airflow after dropping from the feed port 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, thereby enabling the first circulating mesh belt device 101 to have a better material screening and airflow regulation effect as a whole.

[0042] For example, 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 and the first mesh belt roller 8 jointly support the first mesh belt part 111; the fourth mesh belt roller 7 is located in 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 and the second mesh belt roller 9 and the third mesh belt roller 10 jointly support the second mesh belt part 121.

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

[0044] For example, Figure 1 and Figure 2 As shown, the first mesh belt portion 111 jointly 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 position of the slab surface layer formed on the paving belt 11; the running direction of the second mesh belt portion 121 jointly 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 and the second mesh belt roller 9 and the third mesh belt roller 10 are arranged in a triangle. The fourth mesh belt roller 7 is set at a position 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, which can be approximately equal to the diameter length of the fourth mesh belt roller 7, so as to block the airflow, block the passage of materials, and avoid the airflow blowing to the paving belt 11 to form fiber balls and other undesirable phenomena.

[0045] For example, in some embodiments, in order to enable the mesh belt portion to accurately move along the path defined by the plurality of mesh belt rollers and avoid the mesh belt from being worn or deformed due to deviation, as shown in FIG. Figure 1 As shown, the first circulating mesh belt device 101 can also include a first mesh belt monitoring device 12 and a first mesh belt deviation adjusting device 13; the first mesh belt monitoring device 12 is configured to monitor the mesh belt part, that is, the running trajectory of the first mesh belt part 111 and the second mesh belt part 121, and send an adjustment signal when the running trajectory deviates from the predetermined trajectory. The first mesh belt deviation adjusting 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 part when receiving the adjustment signal, so that the mesh belt part is always transmitted on the accurate trajectory.

[0046] For example, in some embodiments, the first mesh belt monitoring device 12 may include a sensor and a monitoring component. The monitoring component is placed against the edge of the mesh belt portion. When the mesh belt portion deviates, the position of the monitoring component will be offset. The sensor is, for example, a position sensor, such as an infrared sensor, which can sense the position of the monitoring component and, after sensing the positional offset of the monitoring component, sends an adjustment signal to cause the first mesh belt adjustment device 13 to perform a corresponding action. The first mesh belt adjustment device 13 may include a cylinder and a pressure wheel controlled by the cylinder, thereby adjusting the deviated mesh belt portion by pneumatically controlling the pressure wheel to ensure its normal operation. For example, the air source can control the amount of air flow 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 wheel to press the mesh belt portion to prevent the mesh belt portion from deviating or to adjust the mesh belt portion that has already deviated.

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

[0048] For example, Figure 3 shows a schematic structural diagram of a mesh belt portion provided by at least one embodiment of the present disclosure, Figure 4 The structural diagram of the mesh belt roller provided by at least one embodiment of the present disclosure is shown as follows: Figure 3 As shown, the mesh belt portion, such as the first mesh belt portion 111 and the second mesh belt portion 121, includes a first guide structure G1, such as Figure 4 As shown, at least one (eg, each) of the plurality of mesh belt rollers 7-10 includes a second guide structure G2, and the first guide structure G1 and the second guide structure G2 cooperate 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 cooperates with the guide protrusion. Figure 3 and Figure 4 In the example, the first guide structure G1 includes guide protrusions provided on the edges of the mesh belt sections, namely the first mesh belt section 111 and the second mesh belt section 121. The second guide structure G2 includes guide grooves provided on the edges of at least one of the multiple mesh belt rollers 7-10. The guide protrusions can be locked in the guide grooves. When the multiple mesh belt rollers 7-10 rotate, the guide protrusions and guide grooves restrict the mesh belt sections from rotating along the designed path, preventing mesh belt deviation.

[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). The hollow rollers will not affect the airflow and the falling of materials, and can prevent material accumulation at the contact point between the mesh belt part and the mesh belt roller to ensure the normal operation of the mesh belt part.

[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 wire wrapped with a non-metallic material. The mesh belt can have a mesh structure of uniform size to achieve a uniform and screening effect on the airflow and material; and the mesh belt has a certain degree of flexibility and high strength, and is not easy to deform. For example, the non-metallic material can include an organic material such as polyurethane, and the metal wire can be a wire made of a metal or alloy material such as steel wire, and the diameter can be about 1mm-2mm. For example, mesh belts of different specifications (such as different mesh sizes) can be designed according to the screening requirements of the material to achieve different screening effects. For example, the edges and interfaces of the mesh belt can be reinforced to make the mesh belt part more solid and less likely to spread and deform.

[0052] For example, in some examples, the aperture size of the mesh belt portion can be 6mm*6mm, 8 mm*8mm, 6mm*8mm, 8mm*10mm, 10mm*10mm, etc., and the edge of the mesh belt portion can be processed with metal wire encryption. At this time, the metal wires at the edge are denser, and the non-metallic material covering the metal wires can be bonded together to form a reinforced edge to avoid undesirable phenomena such as edge spreading and breakage.

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

[0054] For example, in some embodiments, Figure 1 As shown, the first material spreading device 100 may further include a second circulating mesh belt device 102, which is disposed at the material outlet 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 further include a portion extending toward the air inlet N1, such as extending outside the paving chamber 1.

[0055] Therefore, the second circulating mesh belt device 102 can receive or screen part of the material that falls directly from the feed port M1, and use the circulating mesh belt to bring the material attached to the mesh belt part and impurities such as bark fluff out of the paving chamber 1 for cleaning, thereby solving the problem of the fluff and long fibers in the paving material entangled with the mesh belt part and affecting the paving effect.

[0056] In the embodiment of the present disclosure, the first material spreading device 100 and the second circulating mesh belt device 102 are respectively arranged at the front and rear positions of the paving chamber 1, and the two cooperate with each other. The second circulating mesh belt device 102 can receive or screen the larger / heavier shavings / fibers in the material entering from the feed port M1, and these shavings / fibers can be driven by the second circulating mesh belt device 102 to be cleaned; at the same time, the first circulating mesh belt device 101 can receive / screen the lighter shavings / long fibers falling from the feed port M1, and as the first circulating mesh belt device 101 runs, the air outlet The end N2 sucks away the slender fibers to prevent 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, the materials that do not meet the requirements in the materials entering from the feed port M1 can also be effectively screened and removed, so that the materials falling onto the paving belt 11 can better meet the requirements, 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 regulate the airflow at different positions, so that the materials scattered on the paving belt 11 can be more uniform, thereby making the formed slab more uniform.

[0057] for Figure 1 In the embodiment, if only the second circulating mesh belt device 102 is set without the first circulating mesh belt device 101, the problem of fiber balls on the surface of the slab cannot be solved. The long and thin fibers and fluff in the material will fall onto the slab far away from the feed port M1 due to their light weight, 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 throughout the front portion of the paving chamber 1, that is, near the air inlet end N1. Figure 1 As shown, the second circulating mesh belt device 102 includes a third mesh belt portion 112 and a fourth mesh belt portion 122. The third mesh belt portion 112 extends along a first direction R1, extending from the center of the paving chamber 1 toward the air inlet end N1 and out of the paving chamber 1. The fourth mesh belt portion 122 is located within the paving chamber 1 and disposed between the first circulating mesh belt device 101 and the air inlet end N1. The fourth mesh belt portion 122 extends in a direction different from the first direction R1. As a result, material on the mesh belt portion extending outside the paving chamber 1 can be promptly cleaned, ensuring that the third mesh belt portion 112 and the fourth mesh belt portion 122 can smoothly and reliably screen material and regulate airflow.

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

[0060] For example, Figure 1 As shown, the first mesh belt portion 111 and the third mesh belt portion 112 are configured to run in different directions. For example, the first mesh belt portion 111 runs in a first direction R1 toward the air outlet N2. Figure 1 As shown in FIG, the third mesh belt portion 112 runs counterclockwise along the first direction R1 toward the air inlet end N1. Figure 1 It is shown in the figure as running clockwise, so that the material on the mesh belt part is transported to the outside of the paving chamber 1 and is cleaned and recovered outside the paving chamber 1.

[0061] For example, 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 and the fifth mesh belt roller 15 jointly support the third mesh belt portion 112, the eighth mesh belt roller 18 is located in 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 and the sixth mesh belt roller 16 and the seventh mesh belt roller 17 jointly support the fourth mesh belt portion 122.

[0062] For example, the eighth mesh belt roller 18 is arranged at a position 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, which distance can be approximately equal to the diameter length of the eighth mesh belt roller 18 to block the airflow and prevent the material from passing through.

[0063] For example, in some embodiments, 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 adjacent to each other. 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 adjacent to each other. For example, the distance between the eighth mesh belt roller 18 and the fourth mesh belt roller 7 is substantially equal to the distance between the third mesh belt roller 10 and the seventh mesh belt roller 17, and this distance is relatively small, for example, smaller than the diameter of the fourth mesh belt roller 7. As a result, the entirety of the first and second circulating mesh belt devices 101 and 102 is distributed throughout the paving chamber 1, thereby screening the material laid on the paving belt 11 as comprehensively as possible and regulating the airflow to ensure a more uniform material spread on the paving belt 11.

[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 be arranged in other numbers or other ways, such as arrangement positions, to achieve different screening materials and airflow adjustment effects. Figure 5 A structural 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 positions and / or spacing of the mesh belt rollers 9 and 10; for example, the fourth mesh belt roller 7, the second mesh belt roller 9, and the third mesh belt roller 10 are arranged in the form of a right triangle, 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. Figure 1 An embodiment of Figure 5 In the embodiment, the distance between the mesh belt roller 9 and the mesh belt roller 10 is closer, thereby improving the wind blocking effect of the mesh belt part 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 part more flexible; for example, the second circulating mesh belt device 102 may also include more mesh belt rollers, and the embodiments of the present 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 different pore sizes. For example, the mesh size of the mesh belt portion of the first circulating mesh belt device 101 (the first mesh belt portion 111 and the second mesh belt portion 121) is smaller than the mesh size of the mesh belt portion of the second circulating mesh belt device 102 (the third mesh belt portion 112 and the fourth mesh belt portion 122), so that the mesh belt portion of the first circulating mesh belt device 101 and the second circulating mesh belt device 102 can achieve different screening effects for different materials at different positions.

[0067] For example, in some embodiments, Figure 1As shown, the second circulating mesh belt device 102 may include a second mesh belt monitoring device 19 and a second mesh belt deviation adjustment device 20; the second mesh belt monitoring device 19 is configured to monitor the running trajectory of the mesh belt portion, namely the third mesh belt portion 121 and the fourth mesh belt portion 122, and to send a deviation adjustment signal when the running trajectory deviates from the predetermined trajectory. The second mesh belt deviation adjustment device 20 is communicatively connected to the second mesh belt monitoring device 19 and is configured to adjust the running trajectory of the mesh belt portion upon receiving the deviation adjustment signal so that the mesh belt portion always transmits on the accurate trajectory. The specific forms of the second mesh belt monitoring device 19 and the second mesh belt deviation adjustment device 20 can be referred to the first mesh belt monitoring device 12 and the first mesh belt deviation adjustment device 13, and will not be repeated 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 may include a fourth guide structure. The third guide structure and the fourth guide structure cooperate to guide the transmission of the mesh belt portion on the plurality of mesh belt rollers 15-18. The specific forms of the third guide structure and the fourth guide structure may refer to the first guide structure and the second guide structure, and are not further described here.

[0069] For example, in other embodiments, the first circulating mesh belt device 101 and the second circulating mesh belt device 102 can also be integrated into one circulating mesh belt device. At this time, a part of the circulating mesh belt device can extend from the middle of the paving chamber 1 to the air outlet end N2 to realize the function of the first circulating mesh belt device 101, and the other part can extend from the middle of the paving chamber 1 to the air outlet end N2 to realize the function of the second circulating mesh belt device 102. At this time, different material screening and airflow adjustment effects can be achieved through the arrangement of multiple mesh belt rollers.

[0070] For example, Figure 1 As shown, the air inlet N1 and the air outlet N2 are arranged opposite each other in a first direction R1. The air inlet N1 includes an air grille 6 configured to blow air into the paving chamber 1 at a predetermined speed. The air outlet N2 includes an air induction device 3 configured to draw air from the paving chamber 1 at a predetermined speed. Thus, the air inlet grille 6 and the air induction 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 this airflow within the paving chamber 1 to ensure more uniform material paving and avoid undesirable phenomena such as fiber balls.

[0071] For example, Figure 6 FIG. 1 shows a structural diagram of another paving device provided by at least one embodiment of the present disclosure, such as Figure 6As shown, the paving equipment may further include a second material spreading device 200 and at least one third material spreading device 300 . The first material spreading device 100 and the second material spreading device 200 have the same structure. The at least one third material spreading device 300 may include one or more third material spreading devices 300 .

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

[0073] Therefore, the paving equipment provided by the embodiment of the present disclosure can form a composite board, which includes a substrate part (i.e., a core layer slab) as an intermediate layer formed by the third material spreading device 300 and a finishing part (i.e., a surface slab) located on both sides of the substrate part formed by the first material spreading device 100 and the second material spreading device 200, thereby forming a three-layer structure; through the above-mentioned design of the first circulating mesh belt device 101 and the second circulating mesh belt device 102 in the first material spreading device 100 and the second material spreading device 200, the finishing part / surface slab of the formed composite board can be made more uniform, thereby improving the formation quality of the composite board.

[0074] There are a few points to note:

[0075] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

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

[0077] (3) In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0078] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. The protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A paving device, comprising a first material spreading device, wherein the first material spreading device comprises: A paving chamber comprises 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, wherein, in the first direction, the material inlet and the material outlet are located between the air inlet and the air outlet, and the material inlet is arranged on a side close to the air inlet, and The first circulating mesh belt device is arranged at the discharge port and at least partially extends from the middle of the paving chamber to the air outlet end along the first direction.

2. The paving equipment according to claim 1, wherein: At least a portion of the first circulating mesh belt device extends toward the air outlet end to outside the paving chamber.

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

4. The paving equipment according to claim 3, wherein: The first circulating mesh belt device also includes: The first mesh belt roller is located at the air outlet end or outside the paving chamber, The second mesh belt roller and the third mesh belt roller are located at the discharge port and support the first mesh belt portion together with the first mesh belt roller, and 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, the second mesh belt roller and the third mesh belt roller jointly support the second mesh belt part.

5. The paving equipment according to claim 1 or 2, wherein: 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, wherein: The first guide structure includes a guide protrusion provided on an edge of the mesh belt portion, and the second guide structure includes a guide groove provided on an edge of at least one of the plurality of mesh belt rollers.

7. The paving equipment according to claim 1 or 2, wherein: 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, and the first circulating mesh belt device further includes: a first mesh belt monitoring device configured to monitor the running track of the mesh belt portion and to send a deviation signal when the running track deviates from a predetermined track; and The first mesh belt deviation adjustment 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 receiving the deviation adjustment signal.

8. The paving equipment according to claim 3, wherein: The first material dispersing device further comprises: The second circulating mesh belt device is arranged at the discharge port and is at least partially arranged between the first circulating mesh belt device and the air inlet end.

9. The paving equipment according to claim 8, wherein: The second circulating mesh belt device includes: A third mesh belt portion extends along the first direction and extends from the middle of the paving chamber to the air inlet end and outside the paving chamber, and The fourth mesh belt portion is located in the paving chamber, is arranged between the first circulating mesh belt device and the air inlet end, and extends in a direction different from the first direction.

10. The paving equipment according to claim 9, wherein: An extension direction of at least a portion of the fourth mesh belt portion is parallel to an extension direction of at least a portion of the second mesh belt portion.

11. The paving equipment according to claim 9, wherein: 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, wherein: The second circulating mesh belt device also includes: The fifth mesh belt roller is located outside the paving chamber, The sixth mesh belt roller and the seventh mesh belt roller are located at the discharge port and support the third mesh belt portion together with the fifth mesh belt roller, and 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, the sixth mesh belt roller and the seventh mesh belt roller jointly support the fourth mesh belt part.

13. The paving equipment according to claim 12, wherein: The eighth mesh belt roller and the fourth mesh belt roller have the same height relative to the discharge port. The third mesh belt roller and the seventh mesh belt roller are at the same height relative to the discharge port.

14. The paving equipment according to claim 1 or 2, wherein: The air inlet end and the air outlet end 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 inducing device.

15. The paving equipment according to claim 1 or 2, wherein: The mesh belt portion of the first circulating mesh belt device includes a mesh belt woven from metal wires wrapped with non-metallic materials.

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

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