Paving device
By configuring laying rollers and material separation mechanisms at different spacings in the laying device, the problem of uneven core layer thickness caused by particle winding is solved, and uniform laying of each layer of particle board and high-quality finished products are achieved.
Patent Information
- Application Number
- CN202420105855.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-16
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2034-01-16
AI Technical Summary
In the traditional particle board core layer laying process, particles are wound due to differences in particle size and material, resulting in uneven core layer thickness, affecting the aesthetics of particle board and the quality of finished products.
Design a laying device, by configuring a plurality of laying rollers with different spacings in two laying parts, the spacing between adjacent rollers is gradually increased, and particles of different particle sizes are respectively accommodated, and realized through the material separation mechanism and the conveying mechanism. Even distribution and lamination of particles.
The thickness uniformity of the core layers of the particle board is achieved, the drop of particulate material is reduced, and the aesthetics and finished product quality of the particle board are improved.
Smart Images
Figure CN222135314U_ABST
Abstract
Description
Technical Field
[0001] At least one embodiment of the utility model relates to the technical field of particle board manufacturing, and more specifically, to a paving device suitable for laying a core layer of a board. Background Art
[0002] Particleboard (including grass board) is mainly made of particles such as crop straw, wood chips, bamboo, etc. The paving process of using the above particles to form different core layers is the main process in the particleboard processing.
[0003] For the paving of the core layer, the traditional process is to use particles of different particle sizes and materials to lay them layer by layer. Taking a three-layer core particleboard as an example, the laying process needs to be repeated three times, which is inefficient. In order to solve the shortcomings of the traditional process, particles of different particle sizes are mixed and transported, and then laid uniformly through a laying mechanism configured above the conveying mechanism.
[0004] At present, the laying mechanism used includes two laying sections that are arranged at intervals and have different conveying directions. Each laying section is provided with a plurality of laying rollers with the same spacing. In this way, during the laying process, particles with smaller particle sizes will fall through the gaps between adjacent laying rollers in each laying section, while particles with larger particle sizes will fall through the larger gap formed between the two laying sections. In this way, in conjunction with the conveying mechanism, the laying of particles with smaller particle sizes can be concentrated on the upstream of the conveying direction, while the laying of particles with larger particle sizes can be concentrated on the midstream of the conveying direction, thereby forming a three-layer core layer in one laying process to improve the laying efficiency.
[0005] However, in the actual production process, particles of various materials and sizes are mixed and fed, and some particles have longer fibers, which may cause the particles to become entangled, so that larger particles carry smaller particles on the laying section. This will result in particles with smaller sizes not being able to fully fall from between adjacent laying rollers, and the amount of particles falling between two laying sections is large, making the laying thickness of multiple core layers uneven. For example, the core layer located in the upper and / or lower layers is thinner, while the core layer located in the middle layer is thicker, causing particles with larger sizes to be easily exposed to the upper or lower layers, seriously affecting the aesthetics of the particleboard and the quality of the finished product.
[0006] Therefore, how to make particles of different sizes form a core layer with relatively uniform thickness during the laying process has become a technical problem that needs to be solved urgently. Utility Model Content
[0007] In order to solve at least one technical problem in the prior art and other aspects, the utility model provides a paving device, in which a plurality of laying rollers with different spacings are arranged in two laying parts, so that particles of different sizes can be accommodated between adjacent laying rollers to fall gradually and separately, so as to more fully distribute the particles and reduce the amount of particles falling between the two laying parts, which is conducive to forming a uniform particle board with multiple core layers with gradually changing particle sizes.
[0008] The utility model provides a paving device, which is suitable for paving the core layer of a particle board, comprising: a frame, wherein the upper part of the frame is provided with a feed port, which is suitable for inputting particles to be laid; a material distribution mechanism, which is arranged below the feed port and forms two distribution channels, and is suitable for evenly distributing the particles input from the feed port along the two distribution channels; a paving mechanism, which comprises two paving parts, each of which is arranged below one of the distribution channels, and the two paving parts are configured to transmit and lay the particles in opposite directions; and a conveying mechanism, which is arranged above the paving mechanism. , and defines a first conveying direction; wherein each of the above-mentioned laying parts is provided with a plurality of laying rollers spaced apart in a horizontal direction, and the spacing between two adjacent above-mentioned laying rollers is constructed to gradually increase from a side away from the other above-mentioned laying part to a side close to the other above-mentioned laying part, so that the above-mentioned particles with a smaller particle size fall from both sides of the above-mentioned laying mechanism, and the particles with a larger particle size fall from the middle of the above-mentioned laying mechanism, so that the above-mentioned particles dropped in sequence from the two above-mentioned laying parts form a plurality of stacked and laid core layers on the conveying surface of the above-mentioned conveying mechanism along the above-mentioned first conveying direction.
[0009] According to an embodiment of the utility model, each of the above-mentioned laying parts includes a mounting frame, multiple groups of mounting seats and locking members, and a laying roller is rotatably mounted between each group of two facing mounting seats; wherein the above-mentioned laying roller is slidably mounted on the above-mentioned mounting frame through the above-mentioned mounting seats, and is locked with the above-mentioned mounting frame through the above-mentioned locking member to adjust and maintain the distance between two adjacent above-mentioned laying rollers.
[0010] According to an embodiment of the utility model, the paving device further comprises a limiting rod, which is configured to press against the above-mentioned mounting frame and / or the above-mentioned mounting seat to maintain the position of the above-mentioned paving portion relative to the above-mentioned frame.
[0011] According to an embodiment of the present invention, the laying rollers configured for each of the laying parts are configured to have the same rotation speed.
[0012] According to an embodiment of the present invention, at least two of the laying rollers configured for each of the laying parts are configured to have different rotation speeds.
[0013] According to an embodiment of the utility model, the laying roller comprises a diamond roller with an array of prismatic protrusions formed on the surface.
[0014] According to an embodiment of the utility model, the above-mentioned material distribution mechanism includes: a distribution part, which is arranged below the above-mentioned feed port, suitable for receiving the above-mentioned particles input from the above-mentioned feed port, and conveying them downwardly at an angle from the middle of the above-mentioned feed port to both sides; and a receiving part, which is arranged below the above-mentioned distribution part, and the above-mentioned receiving part is configured with a slope surface which is roughly parallel to the conveying direction of the above-mentioned distribution part, so as to distribute the particles dropped from the above-mentioned distribution part to both sides along the above-mentioned slope surface.
[0015] According to an embodiment of the utility model, the distribution part includes a plurality of rotatable licker-in rollers, a first licker-in roller is arranged below the feed port, at least partially overlaps with the feed port in the vertical projection, and a plurality of second licker-in rollers are symmetrically arranged with the axis of the first licker-in roller as the center line; wherein the height of the plurality of second licker-in rollers located on one side of the first licker-in roller is constructed to gradually decrease from one side close to the first licker-in roller to the other side to form a gradually downward conveying surface.
[0016] According to an embodiment of the utility model, the receiving portion comprises two symmetrically arranged receiving plates, the facing sides of the two receiving plates are arranged below the first licker-in roller, and the distant sides of the two receiving plates extend beyond the transmission position of the second licker-in roller located at the outermost side; wherein the two receiving plates are constructed as an angle-adjustable structure, which is suitable for adjusting the angle between the slope formed by the receiving plates and the horizontal plane, so as to adjust the output position and transmission speed of the particles.
[0017] According to an embodiment of the utility model, the second licker-in rollers located on both sides of the first licker-in roller are arranged to rotate in opposite directions.
[0018] According to the paving device provided by the utility model, a plurality of laying rollers with different spacings are arranged in the two laying parts, so that particles of different diameters can be accommodated between adjacent laying rollers to fall gradually and separately, so as to more fully distribute the particles. In conjunction with the first conveying direction of the conveying mechanism, the particle sizes of the particles between the core layers located at the upper and lower layers and the core layer located at the middle layer can be uniformly and gradually changed; and, since the uniform distribution of the particles also reduces the amount of particles falling between the two laying parts, it is beneficial to make the thickness of each core layer of the particle board more uniform. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 is a structural diagram of a paving device according to an exemplary embodiment of the utility model;
[0020] Figure 2 yes Figure 1 A schematic diagram of a laying roller arrangement according to the illustrated exemplary embodiment;
[0021] Figure 3 for Figure 1 A rear view of the paving device of the illustrated exemplary embodiment;
[0022] as well as Figure 4 yes Figure 1 The schematic diagram of the paving device of the schematic embodiment shown is a schematic diagram of the paving method.
[0023] In the accompanying drawings, the meanings of the reference numerals are as follows:
[0024] 1. Frame;
[0025] 11. Beam;
[0026] 12. Feed inlet;
[0027] 2. Material separation mechanism;
[0028] 21. Licker-in;
[0029] 22. Attachment plate;
[0030] 23. The first motor;
[0031] 24. Tensioner;
[0032] 25. Leather wheel;
[0033] 26. Gear;
[0034] 3. Laying mechanism;
[0035] 31. Mounting frame;
[0036] 32. The first limit rod;
[0037] 33. Second limit rod;
[0038] 34. Synchronous chain;
[0039] 35. Laying roller;
[0040] 36. Second motor;
[0041] 37. Reducer;
[0042] 38. Drive belt;
[0043] 4. Transmission mechanism;
[0044] 5. Particles;
[0045] 51. The first particle;
[0046] 52. The second particle;
[0047] 6. Core layer;
[0048] 61. first core layer;
[0049] 62. a second core layer; and
[0050] 63. The third core layer. DETAILED DESCRIPTION
[0051] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.
[0052] The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. The terms "include", "comprises", etc. used herein indicate the existence of features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.
[0053] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification, and should not be interpreted in an idealized or overly rigid manner.
[0054] When using expressions such as "at least one of A, B and C", it should generally be interpreted according to the meaning of the expression commonly understood by technical personnel in this field. For example, "a system having at least one of A, B and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.
[0055] Figure 1 It is a structural diagram of a paving device according to an illustrative embodiment of the utility model. Figure 2 yes Figure 1 A schematic diagram of the arrangement of laying rollers according to the exemplary embodiment is shown.
[0056] According to an embodiment of the utility model, a paving device suitable for paving a core layer of a particle board is provided, such as Figure 1 and Figure 2As shown, it includes a frame 1, a material distribution mechanism 2, a laying mechanism 3 and a conveying mechanism 4. A feed port 12 is provided on the upper part of the frame 1, which is suitable for inputting particles 5 to be laid. The material distribution mechanism 2 is arranged below the feed port 12 and forms two distribution channels, which are suitable for evenly distributing the particles 5 input from the feed port 12 along the two distribution channels. The laying mechanism 3 includes two laying parts, each of which is arranged below a distribution channel, and the two laying parts are configured to transport and lay particles 5 in facing directions. The conveying mechanism 4 is arranged below the laying mechanism 3 and defines a first conveying direction. Each laying section is equipped with a plurality of laying rollers 35 spaced apart in the horizontal direction, and the spacing between two adjacent laying rollers 35 is constructed to gradually increase from a side away from the other laying section to a side close to the other laying section, so that particles 5 with smaller particle sizes fall from both sides of the laying mechanism 3, and particles 5 with larger particle sizes fall from the middle of the laying mechanism 3, so that the particles 5 dropped sequentially from the two laying sections form a plurality of stacked core layers 6 on the conveying surface of the conveying mechanism 4 along the first conveying direction.
[0057] In an illustrative embodiment, Figure 2 As shown, each laying section includes but is not limited to being configured with five laying rollers 35. In detail, the plurality of laying rollers 35 are arranged in parallel and spaced apart. Further, the spacing between two adjacent laying rollers 35 is determined by the input side of the laying section (such as Figure 2 The left side of the laying part on the left side shown in the figure, the right side of the laying part on the right side) to the output side (as shown in the figure Figure 2 The right side of the paving portion on the left side, the left side of the paving portion on the right side) shown gradually increases.
[0058] Among them, Figure 2 As shown, l4>l3>l2>l1.
[0059] In such an embodiment, a plurality of laying rollers 35 with different spacings are arranged in the two laying parts, so that particles of different particle sizes can be accommodated between adjacent laying rollers 35 and fall gradually and separately, so that the particles are more fully distributed, and in conjunction with the first conveying direction of the conveying mechanism, the particle sizes of the particles between the core layers located in the upper and lower layers and the core layers located in the middle layer can be uniformly changed; and, because the uniform distribution of the particles also reduces the amount of particles falling between the two laying parts, it is beneficial to make the thickness of each core layer of the particle board more uniform. It should be understood that the embodiments of the present disclosure are not limited to this.
[0060] For example, the intervals between at least a portion of adjacent laying rollers 35 may be configured to be substantially the same, such as l4>l3=l2>l1.
[0061] For another example, the laying rollers 35 may be three, four, six or any other number to meet the requirements of laying the core layer.
[0062] For another example, the distance between two adjacent laying rollers 35 can be configured according to the input particles of different particle sizes, such as l1 including but not limited to being configured as 5 mm, and l4 including but not limited to being configured as 35 mm.
[0063] In an illustrative embodiment, the conveying mechanism 4 includes but is not limited to any one of a belt conveyor or other conveying equipment with a continuous conveying surface.
[0064] According to the embodiments of the present utility model, Figure 2 As shown, the laying roller 35 comprises a diamond roller having an array of prismatic protrusions formed on the surface.
[0065] In an illustrative embodiment, Figure 2 As shown, a plurality of prismatic protrusions are evenly spaced on the circumferential surface of the diamond roller, and the plurality of prismatic protrusions form a prismatic protrusion array along rows and / or columns.
[0066] In such an embodiment, the particles conveyed and laid by the laying section are light in weight. Therefore, a diamond roller with prismatic protrusions has a better conveying effect than a smooth roller, which not only increases the friction between the roller surface and the particles, but also can move the particles, thereby more effectively preventing the particles from being suspended and gathered between adjacent laying rollers 35.
[0067] According to the embodiments of the present utility model, Figure 1 and Figure 2 As shown, the laying rollers 35 assigned to each laying section are constructed to have the same rotation speed.
[0068] In an illustrative embodiment, Figure 2 As shown, the conveying mechanism 4 is configured to convey along a first conveying direction, wherein the first conveying direction (such as Figure 2 The laying roller 35 of the laying section upstream of the first conveying direction (the laying section on the right side of the bitmap) is configured to be consistent with the conveying direction of the first conveying direction (i.e., rotating counterclockwise with the axis of the laying roller 35 as the axis); Figure 2 The laying roller 35 of the downstream laying section (the laying section on the left side of the figure) is configured to be consistent with the conveying direction of the first conveying direction (i.e., rotating clockwise with the axis of the laying roller 35 as the axis). The rotation speed of the laying roller 35 of each laying section is the same.
[0069] According to an embodiment of the present invention, which is not shown in the drawings, at least two laying rollers 35 configured for each laying section are constructed to have different rotation speeds.
[0070] In an illustrative embodiment, the conveying mechanism 4 is configured to convey along a first conveying direction, wherein the laying roller 35 of the laying section located upstream of the first conveying direction is configured to be consistent with the conveying direction of the first conveying direction; the laying roller 35 of the laying section located downstream of the first conveying direction is configured to be consistent with the conveying direction of the first conveying direction. The rotation speed of the laying roller 35 of each laying section is different, such as the rotation speed of the laying roller 35 arranged from the input side to the output side of the laying section gradually increases, which can speed up the transmission speed of the particles conveyed along the laying section, thereby avoiding the accumulation of particles on the input side. It should be understood that the disclosed embodiments are not limited to this.
[0071] Since the laying rollers 35 arranged in the laying part form a speed difference, different core layers may be laid at different speeds, resulting in different thicknesses of each core layer. Therefore, the speed of each laying roller 35 should be set comprehensively according to the particle size of the laid particles and the thickness of the formed core layer, so as to meet the parameter requirements of the particleboard.
[0072] According to the embodiments of the present utility model, Figure 1 As shown, each laying part includes a mounting frame 31, multiple sets of mounting seats and locking members, and a laying roller 35 is rotatably mounted between two mounting seats facing each other. The laying roller 35 is slidably mounted on the mounting frame 31 through the mounting seats, and is locked with the mounting frame 31 through the locking member to adjust and maintain the distance between two adjacent laying rollers 35.
[0073] In an illustrative embodiment, Figure 1 As shown, the side wall of the frame 1 (such as Figure 1 An opening is provided on the side wall facing the paper and the side wall facing away from the paper as shown. Further, the mounting frame 31 is installed in the opening, wherein the mounting frame 31 includes but is not limited to being fixed in the opening formed by the frame 1 by bolts, rivets, welding or any other means.
[0074] In an illustrative embodiment, Figure 1 As shown, the mounting frame 31 is provided with a strip-shaped slide groove (such as Figure 1 In detail, one of the outer edges of the mounting seat and the mounting frame 31 forms a concave portion, and the other forms a convex portion, so that the mounting seat can be slidably mounted on the mounting frame 31. Further, the two mounting seats facing each other (such as Figure 1 The mounting seat facing the paper surface and the mounting seat facing away from the paper surface are respectively sleeved on the axial ends of a laying roller 35, so that the laying roller 35 can rotate around the axis relative to the mounting seat.
[0075] According to the embodiments of the present utility model, Figure 1As shown, the paving device further includes a limiting rod, which is configured to press against the mounting frame 31 and / or the mounting seat to maintain the position of the paving portion relative to the frame 1.
[0076] In an illustrative embodiment, Figure 1 As shown, it includes a first limiting rod 32 and a second limiting rod 33. In detail, the first limiting rod 32 is installed on the mounting frame 31 through a bracket (threaded fit), wherein one axial end of the first limiting rod 32 presses on the facing mounting seat to limit the horizontal position of the mounting seat (including the laying roller 35); the second limiting rod 33 is installed on the crossbeam 11 of the frame 1 (threaded fit), and one axial end of the second limiting rod 33 presses on the lower part of the mounting frame 31 to limit the vertical position of the mounting seat (including the laying roller 35).
[0077] In an illustrative embodiment, Figure 1 As shown, the first limiting rod 32 and / or the second limiting rod 33 include but are not limited to a screw structure. In detail, the ends of the first limiting rod 32 and the second limiting rod 33 facing the mounting seat are tightly pressed on the mounting seat.
[0078] In such an embodiment, by limiting the mounting frame 31 and / or the mounting seat, the position of the laying roller 35 can be limited in the vertical direction and / or the horizontal direction to prevent the distance between adjacent laying rollers 35 from changing due to vibration and other reasons when the paving device is running. Further, by configuring the installation position of the first limiting rod 32 and the bracket, and the installation position of the second limiting rod 33 and the crossbeam 11, the position of the mounting seat (including the laying roller 55) relative to the frame 1 can be adjusted, so that the distance between the two mounting seats (i.e., adjusting the lateral position of the mounting seat) can be adjusted, and the inclination of the mounting seat (including the laying roller 55) can be adjusted.
[0079] Figure 3 for Figure 1 A rear view of the paving device of the exemplary embodiment shown.
[0080] In an illustrative embodiment, Figure 3 As shown, the laying mechanism 3 also includes a first driving unit configured on each laying part. In detail, the first driving unit includes a second motor 36, a reducer 37, a driving belt 38 and a synchronous chain 34, wherein the second motor 36 is installed on the crossbeam 11 of the frame 1, and the output end of the second motor 36 is connected to the shaft of each laying roller 35 through the reducer 37, so as to drive at least a part of the laying rollers 35 to rotate synchronously through the driving belt 38 (including the pulley). Further, as Figure 1 As shown, a gear is disposed at the other end of each laying roller 35 , and a meshing synchronous chain 34 is disposed outside each gear to further maintain the synchronous rotation of each laying roller 35 .
[0081] Figure 4 yes Figure 1 The schematic diagram of the paving device of the schematic embodiment shown is a schematic diagram of the paving method.
[0082] According to the embodiments of the present utility model, Figure 4 As shown, the material distribution mechanism 2 includes a distribution part and a receiving part. The distribution part is arranged below the feed port 12, and is suitable for receiving the particles 5 input from the feed port 12, and transmitting them downwardly from the middle of the feed port 12 to both sides. The receiving part is arranged below the distribution part, and is provided with a slope surface substantially parallel to the transmission direction of the distribution part, so as to distribute the particles 5 dropped from the distribution part to both sides along the slope surface.
[0083] According to the embodiments of the present utility model, Figure 4 As shown, the distribution part includes a plurality of rotatable licker-in rollers 21, the first licker-in roller is arranged below the feed port 12, and at least partially overlaps with the feed port 12 in the vertical projection, and the plurality of second licker-in rollers are symmetrically arranged with the axis of the first licker-in roller as the center line. The height of the plurality of second licker-in rollers located on one side of the first licker-in roller is configured to gradually decrease from the side close to the first licker-in roller to the other side to form a gradually downward conveying surface. Among them, the two receiving plates 22 are configured as an angle-adjustable structure, which is suitable for adjusting the angle between the slope formed by the receiving plates 22 and the horizontal plane to adjust the output position and transmission speed of the particles 5.
[0084] In an illustrative embodiment, Figure 4 As shown, the receiving plate 22 is pivotally mounted on the frame 1, and is adapted to rotate around the pivot axis to adjust the extension direction of the receiving plate 22, thereby adjusting the output position and transmission speed of the particles 5 dropped from the receiving plate 22 (i.e., the larger the slope formed by the receiving plate 22, the faster the particles 5 drop). Furthermore, the two receiving plates 22 can be configured to have different lengths, thereby further adjusting the output position and drop speed of the particles 5 in accordance with the angle formed between the receiving plate 22 and the horizontal plane.
[0085] According to the embodiments of the present utility model, Figure 4 As shown, the second licker-in rollers located on both sides of the first licker-in roller are arranged with opposite rotation directions.
[0086] In an illustrative embodiment, Figure 3 and Figure 4 As shown, the first licker-in roller is arranged below the feed port 12, and two groups of second licker-in rollers are arranged on both sides below the first licker-in roller, and the two second licker-in rollers in the same group are symmetrically arranged.
[0087] In an illustrative embodiment, Figure 3 and Figure 4As shown, the first end of the first licker-in roller and a group of second licker-in rollers located at the bottom are equipped with a leather wheel 25, and the two licker-in rollers located in the middle are equipped with gears 26. The two gears 26 are meshed with each other so that the second licker-in rollers located on both sides of the first licker-in roller rotate in opposite directions (such as Figure 4 As shown, the two second licker-in rollers located on the left side of the first licker-in roller rotate counterclockwise, and the two second licker-in rollers located on the first licker-in roller rotate clockwise). Further, the second licker-in rollers located on the same side of the first licker-in roller (i.e., the two located on the left side or the two located on the right side) are connected to the axially arranged licker-in roller 25 of the gear through a licker-in roller 25, so that the rotation direction of the second licker-in rollers on the same side is the same, and the first licker-in roller is configured to rotate in the same direction as the second licker-in rollers on either side, so that the particles are transmitted in different directions (to the left and to the right). Furthermore, a tensioning wheel 24 is also arranged between the second licker-in rollers on the same side, so that the torque output by the first motor 23 can be transmitted between the second licker-in rollers.
[0088] According to the embodiments of the present utility model, Figure 4 As shown, the receiving portion includes two symmetrically arranged receiving plates 22. The facing sides of the two receiving plates 22 are arranged below the first licker-in roller, and the separated sides of the two receiving plates 22 extend beyond the transmission position of the second licker-in roller located at the outermost side.
[0089] In an illustrative embodiment, Figure 4 As shown, the two receiving plates 22 are configured as an inverted V-shaped structure. In detail, the upper portions of the two receiving plates 22 are arranged directly below the first licker-in roller. Further, the lower portions of the two receiving plates 22 are configured to extend from the vertical projections of the two second licker-in rollers located at the lower portions, and are arranged above the laying rollers 35 located at both sides.
[0090] In such an embodiment, since the particles input from the feed port 12 are irregular in shape (such as strips, flakes, blocks and spherical shapes, etc.), they often become entangled and clumped during the distribution process (such as long straw fibers). Therefore, the particles that first fall onto the first licker-in roller are caught by the thorns on the first licker-in roller and are transmitted to one side along the rotation direction of the first licker-in roller (such as Figure 4 The particles that fall on the first licker-in roller are transferred to the other side under the action of their own weight because they cannot directly contact the thorns of the first licker-in roller, so that the particles are roughly evenly distributed; when the particles fall between the first licker-in roller and the second licker-in roller, or between two adjacent second licker-in rollers, the relative rotation of the licker-in rollers can not only transfer the particles downward between the licker-in rollers, but also pull and break up the clumped particles, so that the particles with smaller particle size wrapped therein are exposed to the outside, and fall on the receiving plate 22 before other particles, so as to fall on the laying roller 35 faster along the slope, so that the particles can be distributed evenly. Figure 4The first particles 51 with a smaller particle size are preferentially laid by the laying roller 35, and then the second particles 52 with a larger particle size that fall on the laying roller 35 continue to be transported along the laying roller 35, and fall one after another after passing between two laying rollers 35 with a larger spacing.
[0091] In this way, both when distributing the particles, the particles are distributed more evenly, and when laying, the spacing between the laying rollers 35 is screened, so that Figure 4 The thickness of the first core layer 61 at the bottom, the second core layer 62 at the middle, and the third core layer 63 at the top are relatively uniform, and the particle size increases gradually from the top and bottom layers to the middle.
[0092] It should also be noted that the directional terms mentioned in the embodiments, such as "upper", "lower", "front", "back", "left", "right", etc., are only reference directions of the drawings and are not intended to limit the scope of protection of the present invention. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or configurations will be omitted when they may cause confusion in the understanding of the present invention.
[0093] The embodiments of the present invention are described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although the embodiments are described above separately, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. The scope of the present invention is defined by the attached claims and their equivalents. Without departing from the scope of the present invention, a person skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present invention.
Claims
1. A laying device, suitable for laying a core layer (6) of a particle board, characterized in that: include: A frame (1), wherein the upper portion of the frame (1) is provided with a feed port (12) suitable for inputting particles (5) to be laid; A material distribution mechanism (2) is arranged below the feed port (12) and forms two distribution channels, and is suitable for evenly distributing the particles (5) input from the feed port (12) along the two distribution channels; A laying mechanism (3) comprising two laying parts, each of which is arranged below one of the distribution channels, and the two laying parts are configured to transport and lay the particles (5) in facing directions; and A conveying mechanism (4) is arranged below the laying mechanism (3) and defines a first conveying direction; Each of the laying sections is provided with a plurality of laying rollers (35) arranged at intervals in the horizontal direction, and the spacing between two adjacent laying rollers (35) is constructed to gradually increase from a side away from the other laying section to a side close to the other laying section, so that the particles (5) with a smaller particle size fall from both sides of the laying mechanism (3), and the particles (5) with a larger particle size fall from the middle of the laying mechanism (3), so that the particles (5) dropped in sequence from the two laying sections form a plurality of stacked core layers (6) on the conveying surface of the conveying mechanism (4) along the first conveying direction.
2. The paving device according to claim 1, characterized in that: Each of the laying parts comprises a mounting frame (31), a plurality of mounting seats and locking members, and a laying roller (35) is rotatably mounted between two facing mounting seats in each group; The laying roller (35) is slidably mounted on the mounting frame (31) via the mounting seat, and is locked with the mounting frame (31) via the locking member, so as to adjust and maintain the distance between two adjacent laying rollers (35).
3. The paving device according to claim 2, characterized in that: It also comprises a limiting rod, which is configured to press against the mounting frame (31) and / or the mounting seat to maintain the position of the laying portion relative to the frame (1).
4. The paving device according to any one of claims 1 to 3, characterized in that: The laying rollers (35) configured for each laying section are constructed to have the same rotation speed.
5. The paving device according to any one of claims 1 to 3, characterized in that: At least two laying rollers (35) configured for each laying section are configured to have different rotation speeds.
6. The paving device according to any one of claims 1 to 3, characterized in that: The laying roller (35) comprises a diamond roller with an array of prismatic protrusions formed on the surface.
7. The paving device according to any one of claims 1 to 3, characterized in that: The material distribution mechanism (2) comprises: a distribution portion, arranged below the feed port (12), adapted to receive the particles (5) input from the feed port (12), and to transfer the particles (5) downwardly from the middle of the feed port (12) to both sides in an inclined manner; and The receiving part is arranged below the distributing part, and the receiving part is provided with a slope surface which is substantially parallel to the conveying direction of the distributing part, so as to distribute the particles (5) dropped from the distributing part to both sides along the slope surface.
8. The paving device according to claim 7, characterized in that: The distribution part comprises a plurality of rotatable licker-in rollers (21), a first licker-in roller being arranged below the feed opening (12) and at least partially overlapping with the feed opening (12) in the vertical projection, and a plurality of second licker-in rollers being arranged symmetrically with the axis of the first licker-in roller as the center line; Wherein, the heights of the plurality of second licker-in rollers located on one side of the first licker-in roller are configured to gradually decrease from one side close to the first licker-in roller to the other side to form a gradually downward conveying surface.
9. The paving device according to claim 8, characterized in that: The receiving portion comprises two symmetrically arranged receiving plates (22), the facing sides of the two receiving plates (22) being arranged below the first licker-in roller, and the distant sides of the two receiving plates (22) extending beyond the transmission position of the second licker-in roller located at the outermost side; The two receiving plates (22) are configured as an angle-adjustable structure, which is suitable for adjusting the angle between the slope formed by the receiving plates (22) and the horizontal plane, so as to adjust the output position and transmission speed of the particles (5).
10. The paving device according to claim 8, characterized in that: The second licker-in rollers located on both sides of the first licker-in roller are arranged to rotate in opposite directions.