An oriented strand board laying machine and its control method

Abstract

An oriented strand board placer, which includes a longitudinal placing head, and a bulk material impeller and an orientation placing mechanism are arranged in its placing bin; the orientation placing mechanism includes a fixed beam, a moving beam, a lifting mechanism and an orientation mechanism; the fixed beam is connected to the moving beam through the lifting mechanism, and the moving beam is provided with the orientation mechanism, and the orientation mechanism includes a number of orientation rotating groups arranged side by side; the moving beam includes a short moving beam and a long moving beam, and the short moving beam and the long moving beam are hinged to each other; two groups of orientation rotating groups at the leftmost end of the orientation mechanism are fixed under the short moving beam, and the remaining orientation rotating groups of the orientation mechanism are fixed under the long moving beam. The two groups of orientation rotating groups under the short moving beam can adjust the height relative to the remaining orientation rotating groups, so that the strands vertically falling from the end of the longitudinal placing head can also be stably longitudinally arranged as required.

Description

Technical Field

[0001] The invention relates to particle board production equipment, in particular to an oriented particle board paving machine and a use control method thereof. Background Art

[0002] When producing particleboard, a laying machine is required for laying, especially for oriented particleboard. The laying machine is equipped with several longitudinal laying heads, which can lay the particles in the specified direction. The upper and lower layers of the common three-layer particleboard are longitudinally laid particles, and the core layer is laid with transverse particles. The quality of oriented particleboard depends on whether the direction of the particles is consistent. For the longitudinal laying head of the oriented particleboard laying machine, the height between the longitudinal laying head and the conveyor belt determines the laying thickness of the corresponding layer. The laid particles are inclined upward to the laying thickness at the head of the longitudinal laying head, with a laying angle α, so that there is a large height interval between the head of the longitudinal laying head and the conveyor belt. The particles scattered on the longitudinal oriented sheet usually fall longitudinally, and some particles fall vertically. When they fall from the end of the longitudinal laying head, they may fall in other directions instead of being arranged longitudinally, which leads to unstable surface quality of the particleboard.

[0003] Therefore, it is necessary to design a particleboard paving system and a method of using the same, so that the shavings falling vertically from the end of the longitudinal paving head can also be stably arranged longitudinally as required. Summary of the invention

[0004] The purpose of the present invention is to provide a pipe jacking machine and an automatic control method thereof to solve the technical problems in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An oriented strand board paving machine comprises a longitudinal paving head, wherein the longitudinal paving head comprises a feeding bin and a paving bin, a paving rake and a feeding rake are arranged in the feeding bin, and a bulk material impeller and a directional paving mechanism are arranged in the paving bin; the directional paving mechanism comprises a fixed beam, a movable beam, a lifting mechanism and an directional mechanism; the fixed beam is fixed to a frame at the top of the longitudinal paving head, the movable beam is arranged at the lower part of the fixed beam, the fixed beam and the movable beam are connected by a lifting mechanism, the movable beam is provided with an directional mechanism, and the directional mechanism comprises a plurality of directional rotation groups arranged side by side; the movable beam comprises a short movable beam and a long movable beam, and the short movable beam and the long movable beam are hingedly connected to each other; two directional rotation groups of the directional mechanism located at the leftmost end are fixed at the lower part of the short movable beam, and the remaining directional rotation groups of the directional mechanism are fixed at the lower part of the long movable beam.

[0007] Preferably, the lifting mechanism includes two sets of first screw lifting mechanisms, two sets of second screw lifting mechanisms, and two sets of third screw lifting mechanisms; the short moving beam and the fixed beam are connected by two sets of first screw lifting mechanisms; the long moving beam and the fixed beam are connected by two sets of second screw lifting mechanisms and two sets of third screw lifting mechanisms.

[0008] Preferably, the first screw lifting mechanism includes a nut that is fixed to the fixed beam and can be driven to rotate. A screw is threadedly connected in the nut. The bottom of the screw is hinged to a connecting rod through a first hinge shaft. The other end of the connecting rod is connected to the short moving beam through a second hinge shaft; the second screw lifting mechanism is close to the hinge point of the short moving beam and the long moving beam, and the third screw lifting mechanism is located at the rightmost end of the long moving beam; the second screw lifting mechanism includes a nut that is fixed to the fixed beam and can be driven to rotate. A screw is threadedly connected in the nut. The bottom of the screw is fixedly connected to a connecting column, and the other end of the connecting column is fixedly installed on the top of the long moving beam; the third screw lifting mechanism includes a nut that is fixed to the fixed beam and can be driven to rotate. A screw is threadedly connected in the nut. The bottom of the screw is hinged to a connecting rod through a first hinge shaft. The other end of the connecting rod is connected to the top of the long moving beam through a second hinge shaft.

[0009] Preferably, the first orientation rotation group and the second orientation rotation group are installed on the short moving beam through a distance adjustment mechanism. Each orientation rotation group includes fixed seats on both sides. A rotating shaft is rotatably supported in the fixed seats, and orientation plates are fixedly arranged at equal intervals on the rotating shaft.

[0010] Preferably, the distance adjustment mechanism includes a first distance adjustment unit, a second distance adjustment unit, and a distance adjustment mechanism fixed seat; the distance adjustment mechanism fixed seat is fixedly installed at the bottom of the short moving beam, and the short moving beam is provided with an installation groove structure matching the distance adjustment mechanism fixed seat; the first distance adjustment unit and the second distance adjustment unit are arranged side by side on the distance adjustment mechanism fixed seat; the first distance adjustment unit includes a first driving oil cylinder, a first distance adjustment rod A, a first distance adjustment rod B, and a first distance adjustment table. A first fixed sliding groove is arranged on the distance adjustment mechanism fixed seat, and a first moving sliding groove is correspondingly arranged on the first distance adjustment table; one end of the first distance adjustment rod A is hinged to the distance adjustment mechanism fixed seat, and the other end is slidably installed in the first moving sliding groove; one end of the first distance adjustment rod B is slidably installed in the first fixed sliding groove, and the other end is hinged to the first distance adjustment table; the first distance adjustment rod A and the first distance adjustment rod B are cross-arranged and are hinged and connected through a first core shaft in the middle of the two. One end of the first driving oil cylinder is hinged to the distance adjustment mechanism fixed seat, and the other end is hinged to the first core shaft; the fixed seat of the first orientation rotation group is fixedly installed on the first distance adjustment table.

[0011] Preferably, the second distance adjustment unit is symmetrically arranged relative to the first distance adjustment unit. It includes a second driving oil cylinder, a second distance adjustment rod A, a second distance adjustment rod B, and a second distance adjustment table. A second fixed sliding groove is provided on the fixed seat of the distance adjustment mechanism, and a second moving sliding groove is correspondingly provided on the second distance adjustment table. One end of the second distance adjustment rod A is hinged to the fixed seat of the distance adjustment mechanism, and the other end is slidably installed in the second moving sliding groove. One end of the second distance adjustment rod B is slidably installed in the second fixed sliding groove, and the other end is hinged to the second distance adjustment table. The second distance adjustment rod A and the second distance adjustment rod B are cross - arranged and are hinged and connected through a second core shaft in the middle of the two. One end of the second driving oil cylinder is hinged to the fixed seat of the distance adjustment mechanism, and the other end is hinged to the second core shaft.

[0012] Preferably, it further includes a third orientation rotating group located at the end of the long moving beam and adjacent to the second orientation rotating group. Its fixed seat is directly fixed on the long moving beam, and a redundant transmission mechanism is provided between the first orientation rotating group, the second orientation rotating group, and the third orientation rotating group.

[0013] Preferably, the redundant transmission mechanism includes three synchronous belt pulleys, a first redundant synchronous belt, a second redundant synchronous belt, a first tensioning telescopic rod, and a second tensioning telescopic rod. The three synchronous belt pulleys are respectively arranged at corresponding positions on the rotating shafts of the first orientation rotating group, the second orientation rotating group, and the third orientation rotating group. The first redundant synchronous belt is wound around the synchronous belt pulleys of the first orientation rotating group and the second orientation rotating group, and the second redundant synchronous belt is wound around the synchronous belt pulleys of the second orientation rotating group and the third orientation rotating group.

[0014] Preferably, between the synchronous belt pulleys of the first orientation rotating group and the second orientation rotating group, a first tensioning telescopic rod is provided. One end of the first tensioning telescopic rod is fixed on the short moving beam, and the other end abuts against the first redundant synchronous belt through a roller to tension the first redundant synchronous belt. Between the synchronous belt pulleys of the second orientation rotating group and the third orientation rotating group, a second tensioning telescopic rod is provided. One end of the second tensioning telescopic rod is fixed on the short moving beam, and the other end abuts against the second redundant synchronous belt through a roller to tension the second redundant synchronous belt.

[0015] A control method for an oriented particleboard paving machine includes:

[0016] S1: Obtain parameters such as paving thickness H, conveyor belt speed v, particle length h, and feeding flow rate.

[0017] S2: Calculate the paving angle α according to the parameters obtained in S1, and calculate the size of the empty window area according to the paving angle α.

[0018] S3: Judge whether it is necessary to adjust the height of the orientation rotating group at the end of the longitudinal paving head according to the length and height of the empty window area and the particle length h.

[0019] S4: If it is determined in S3 that the height of the orientation rotation group at the end of the longitudinal paving head needs to be adjusted, control the first screw lifting mechanism and / or the distance adjustment mechanism to extend.

[0020] The beneficial effects of the present invention are as follows:

[0021] 1. The two orientation rotation groups closest to the left end (i.e., the end where the conveyor belt enters) on the moving beam are installed on the moving beam through the distance adjustment mechanism, so that the orientation plates of the two orientation rotation groups above the empty window area E can move downward relative to the orientation plates of the other orientation rotation groups, reducing the height of the empty window area E. In this way, even when the paving thickness H is relatively large, the height of the empty window area E can be compressed, avoiding the disorderly dumping of wood chips, making the wood chips lay as much as possible in the oriented direction, and enabling the wood chips vertically falling from the end of the longitudinal paving head to be stably longitudinally arranged as required.

[0022] 2. By setting the synchronous belt with redundant transmission, it can be ensured that the first orientation rotation group and the second orientation rotation group are always driven to rotate.

[0023] 3. Through the setting of the articulated connection between the long and short moving beams and the lifting mechanism, the short moving beam can tilt relative to the long moving beam, thereby causing the first orientation rotation group and the second orientation rotation group to move downward, so that the orientation plates of the two orientation rotation groups above the empty window area E can move downward relative to the orientation plates of the other orientation rotation groups, reducing the height of the empty window area E. In this way, even when the paving thickness H is relatively large, the height of the empty window area E can be compressed, avoiding the disorderly dumping of wood chips, making the wood chips lay as much as possible in the oriented direction. At the same time, no redundant mechanism needs to be set on the moving beam, reducing the load and the requirements for the overall structural stiffness and strength, and enabling the wood chips vertically falling from the end of the longitudinal paving head to be stably longitudinally arranged as required. Description of the Drawings

[0024] Figure 1 is a schematic structural diagram of the longitudinal paving head of the oriented particleboard paver of the present application;

[0025] Figure 2 is a schematic diagram of several forms of wood chips scattered onto the oriented laying mechanism;

[0026] Figure 3 is a schematic structural diagram of the oriented laying mechanism shown in Embodiment 1 of the present application;

[0027] Figures 4 - 5 is a schematic structural diagram of the oriented laying mechanism shown in Embodiment 2 of the present application;

[0028] Figures 6 - 7 is a schematic structural diagram of the oriented laying mechanism shown in Embodiment 3 of the present application;

[0029] Figure 8It is a schematic structural diagram of the directional laying mechanism shown in Embodiment 4 of the present application;

[0030] Figure 9 It is a schematic structural diagram of the directional laying mechanism shown in Embodiment 5 of the present application;

[0031] Figure 10 It is a schematic structural diagram of the directional laying mechanism shown in Embodiment 6 of the present application;

[0032] Figure 11 It is a schematic structural diagram of the directional laying mechanism shown in Embodiment 7 of the present application;

[0033] In the figure: blanking bin A, paving bin B, leveling rake A1, blanking rake A2, bulk material impeller B1, directional laying mechanism 1, conveyor belt C, particle layer D, paving angle α, paving thickness H, empty window area E, particle length h, conveyor belt speed v, fixed beam 11, moving beam 12, lifting mechanism 3, directional mechanism 2, fixed seat 21, rotating shaft 22, directional vane 23, nut 31, screw rod 32, first hinge shaft 34, connecting rod 33, second hinge shaft 35, connecting column 36, distance adjusting mechanism 5, first distance adjusting unit 51, second distance adjusting unit 52, distance adjusting mechanism fixed seat 53, first driving oil cylinder 511, first distance adjusting rod A512, first distance adjusting rod B513, first distance adjusting table 514, first fixed sliding groove 531, first moving sliding groove 5141, first core shaft 515, second driving oil cylinder 521, second distance adjusting rod A522, second distance adjusting rod B523, second distance adjusting table 524, second moving sliding groove 5241, second fixed sliding groove 532, second core shaft 525, redundant transmission mechanism 6, synchronous pulley 61, first redundant synchronous belt 62, second redundant synchronous belt 63, first tensioning telescopic rod 64, second tensioning telescopic rod 65, short moving beam 121, long moving beam 122. Detailed implementation manners

[0034] The following will describe in detail the specific implementation manners of the present invention in conjunction with the accompanying drawings and preferred embodiments.

[0035] As Figure 1The figure shows the schematic diagram of the longitudinal paving head structure of the oriented strand board paving machine of the present application, which includes a feed bin A and a paving bin B, wherein the feed bin A is located above the paving bin B, and there is a connecting passage between the feed bin A and the paving bin B. A paving rake A1 and a feed rake A2 are arranged in the feed bin A. The paving rake A1 spreads the shavings falling from the top inside the feed bin A. The feed rake A2 is arranged at one end of the lower bin A, and evenly raks the shavings pile in the bin into the paving bin B through the connecting passage. A bulk impeller B1 and a directional paving mechanism 1 are arranged in the paving bin B. The bulk impeller B1 is arranged above the directional paving mechanism 1, and the bulk impeller B1 evenly scatters the shavings entering the paving bin B on the directional paving mechanism 1. After being oriented by the directional paving mechanism 1, the shavings are longitudinally laid on the conveyor belt C located below the longitudinal paving head.

[0036] After being oriented by the directional laying mechanism 1, the wood chips fall onto the conveyor belt C, and a wood chip layer D is formed between the bottom of the directional laying mechanism 1 and the conveyor belt C. Figure 1 The conveyor belt C shown moves from left to right under the longitudinal paving head, and the wood shaving layer D is located under the directional paving mechanism 1, and its thickness gradually increases from 0 until the thickness reaches the lowest position of the directional paving mechanism 1. Figure 1 From the view shown, the wood shaving layer D has two parameters: the paving angle α and the paving thickness H. At the leftmost position below the directional paving mechanism 1, that is, the position where the conveyor belt C enters below the longitudinal paving head, a window area E is formed as shown in the dotted line part. The cross section of the window area E is roughly a right triangle, and the height of the window area E is approximately equal to the paving thickness H.

[0037] like Figure 2 Shown are schematic diagrams of several forms of wood shavings scattered onto the directional laying mechanism 1. The directional laying mechanism 1 includes a number of rotating shafts arranged side by side, on which circular directional sheets are arranged at equal distances, and the directional sheets on adjacent rotating shafts are arranged alternately. The wood shavings fall from the gaps between the directional sheets onto the conveyor belt C. The wood shavings are usually in the form of long strips and sheets. When they are scattered to the top of the directional sheets, they will have the following forms: Ⅰ: The plane of the wood shavings is parallel to the plane of the conveyor belt C, and the length direction of the wood shavings is parallel to the conveyor belt C; Ⅱ: The plane of the wood shavings is parallel to the plane of the conveyor belt C, and the length direction of the wood shavings is perpendicular to the conveyor belt C; Ⅲ: The plane of the wood shavings is parallel to the plane of the conveyor belt C, and the length direction of the wood shavings is inclined to the conveyor belt C; Ⅳ: The plane of the wood shavings is perpendicular to the plane of the conveyor belt C. Among the above four scattering forms, the wood shavings in forms Ⅰ, Ⅱ, and Ⅲ will be arranged in the longitudinal direction after being oriented by the directional sheets, that is, the direction is consistent with the direction of the directional sheets. However, the direction in which the wood shavings in form Ⅳ finally fall on the conveyor belt C is random. As Figures 1 - 2 As shown in the figure, when the Ⅳ morphology wood chips are Figure 1When the empty window area E shown falls into the conveyor belt C, if the length h of the wood chips is less than the paving thickness H, the dumping direction of the wood chips may not be completely along the orientation direction of the orientation sheet, which will result in more disordered wood chip directions during paving, affecting the quality and appearance of the oriented strand board. In the prior art, the reasonable coordination of several parameters such as the paving angle α, the paving thickness H, the conveyor belt speed v, and the wood chip length h is usually controlled to make the wood chips oriented consistently. However, when the paving thickness H is large, due to the existence of the empty window area E, this technical problem still cannot be completely solved. Therefore, the oriented laying mechanism 1 designed in this application can avoid the influence of the empty window area E on the orientation consistency when the paving thickness H is large. The structure of the oriented laying mechanism 1 of this application will be introduced in detail below.

[0038]

Example 1

[0039] As Figure 3The following is a schematic structural diagram of the directional laying mechanism 1 shown in Embodiment 1 of the present application. The directional laying mechanism 1 includes a fixed beam 11, a moving beam 12, a lifting mechanism 3, and a directional mechanism 2. The fixed beam 11 is fixed on the frame at the top of the longitudinal paving head and has a rectangular frame structure, which is used to bear the overall load of the directional laying mechanism 1 inside the longitudinal paving head. The moving beam 12 is arranged below the fixed beam 11, and the fixed beam 11 and the moving beam 12 are connected by a lifting mechanism 3. The lifting mechanism 3 can adjust the distance between the moving beam 12 and the fixed beam 11, that is, adjust the paving thickness of the longitudinal paving head. A directional mechanism 2 is arranged on the moving beam 12. The moving beam 12 has a rectangular frame structure. The directional mechanism 2 includes a number of equally spaced directional rotating groups arranged on the moving beam 12. Each directional rotating group includes fixed seats 21 located on both sides. A rotating shaft 22 is rotatably supported in the fixed seats 21, and directional plates 23 are equally spaced and fixed on the rotating shaft 22. In addition, a synchronous rotation driving structure is arranged at the end of the rotating shaft 22. The synchronous rotation driving structure adopts a belt pulley transmission structure to drive multiple directional rotating groups to rotate synchronously. The directional plates 23 and the synchronous rotation driving structure in the directional rotating group adopt conventional directional plates and their driving and rotating structures in the art, which belong to the prior art and do not involve the main inventive concept of the present application, so they will not be elaborated here. The lifting mechanism 3 includes 6 groups of screw lifting mechanisms arranged at intervals, which includes two groups of first screw lifting mechanisms at the leftmost end of the directional laying mechanism 1 (only the frontmost group is shown in the figure), two groups of second screw lifting mechanisms in the center of the directional laying mechanism 1, and a third screw lifting mechanism at the rightmost end of the directional laying mechanism 1. Among them, the first screw lifting mechanism and the third screw lifting mechanism have the same structure. It includes a rotatable nut 31 fixed on the fixed beam 11. A screw 32 is threadedly connected in the nut 31. The bottom of the screw 32 is hinged to a connecting rod 33 through a first hinge shaft 34, and the other end of the connecting rod 33 is connected to the moving beam 12 through a second hinge shaft 35. The second screw lifting mechanism also includes a rotatable nut 31 fixed on the fixed beam 11. A screw 32 is threadedly connected in the nut 31, but the bottom of its screw 32 is fixedly connected to a connecting column 36, and the other end of the connecting column 36 is fixedly installed on the top of the moving beam 12. Through the three groups of six screw lifting mechanisms, the movement of the moving beam 12 relative to the fixed beam 11 is controlled to adjust the paving thickness of the longitudinal paving head.

[0040]

Embodiment 2

[0041] As Figures 4 - 5The following is a schematic structural diagram of the directional laying mechanism 1 shown in Embodiment 2 of the present application. The directional laying mechanism 1 of this embodiment has the same fixed beam 11, moving beam 12, lifting mechanism 3, and directional mechanism 2 structures as those in Embodiment 1. The improvement lies in that the two sets of directional rotating groups closest to the left end (i.e., the end where the conveyor belt enters) on the moving beam 12 are installed on the moving beam 12 through a distance adjustment mechanism 5. These two sets of directional rotating groups are defined as the first directional rotating group and the second directional rotating group in sequence from left to right. As shown in Figure 5 shown, the distance adjustment mechanism 5 includes a first distance adjustment unit 51, a second distance adjustment unit 52, and a distance adjustment mechanism fixing seat 53. The distance adjustment mechanism fixing seat 53 is fixedly installed at the bottom of the moving beam 12, and an installation groove structure matching the distance adjustment mechanism fixing seat 53 is provided on the moving beam 12. The first distance adjustment unit 51 and the second distance adjustment unit 52 are arranged side by side on the distance adjustment mechanism fixing seat 53. The first distance adjustment unit 51 includes a first driving oil cylinder 511, a first distance adjustment rod A 512, a first distance adjustment rod B 513, and a first distance adjustment table 514. A first fixed sliding groove 531 is provided on the distance adjustment mechanism fixing seat 53, and a first moving sliding groove 5141 is correspondingly provided on the first distance adjustment table 514. One end of the first distance adjustment rod A 512 is hinged to the distance adjustment mechanism fixing seat 53, and the other end is slidably installed in the first moving sliding groove 5141. One end of the first distance adjustment rod B 513 is slidably installed in the first fixed sliding groove 531, and the other end is hinged to the first distance adjustment table 514. The first distance adjustment rod A 512 and the first distance adjustment rod B 513 are cross - arranged and are hinged and connected through a first core shaft 515 in the middle of the two. One end of the first driving oil cylinder 511 is hinged to the distance adjustment mechanism fixing seat 53, and the other end is hinged to the first core shaft 515. By the expansion and contraction of the first driving oil cylinder 511, the first distance adjustment table 514 is driven to move away from or close to the moving beam 12. The fixing seat 21 of the first directional rotating group is fixedly installed on the first distance adjustment table 514. The second distance adjustment unit 52 is symmetrically arranged relative to the first distance adjustment unit 51. It includes a second driving oil cylinder 521, a second distance adjustment rod A 522, a second distance adjustment rod B 523, and a second distance adjustment table 524. A second fixed sliding groove 532 is provided on the distance adjustment mechanism fixing seat 53, and a second moving sliding groove 5241 is correspondingly provided on the second distance adjustment table 524. One end of the second distance adjustment rod A 522 is hinged to the distance adjustment mechanism fixing seat 53, and the other end is slidably installed in the second moving sliding groove 5241. One end of the second distance adjustment rod B 523 is slidably installed in the second fixed sliding groove 532, and the other end is hinged to the second distance adjustment table 524. The second distance adjustment rod A 522 and the second distance adjustment rod B 523 are cross - arranged and are hinged and connected through a second core shaft 525 in the middle of the two. One end of the second driving oil cylinder 521 is hinged to the distance adjustment mechanism fixing seat 53, and the other end is hinged to the second core shaft 525. By the expansion and contraction of the second driving oil cylinder 521, the second distance adjustment table 524 is driven to move away from or close to the moving beam 12. The fixing seat 21 of the second directional rotating group is fixedly installed on the second distance adjustment table 524.

[0042] Two sets of orientation rotating groups closest to the left end (i.e., the end where the conveyor belt enters) on the moving beam 12 are installed on the moving beam 12 through the distance adjusting mechanism 5, so that the orientation plates of the two sets of orientation rotating groups located above the empty window area E can move downward relative to the orientation plates of the remaining orientation rotating groups, reducing the height of the empty window area E. In this way, even when the paving thickness H is relatively large, the height of the empty window area E can be compressed, avoiding the disorderly dumping of wood chips and making the wood chips laid as much as possible in the oriented direction.

[0043]

Embodiment 3

[0044] As Figures 6 - 7 shown is a schematic structural diagram of the orientation laying mechanism 1 shown in Embodiment 3 of the present application. The orientation laying mechanism 1 of this embodiment has the same fixed beam 11, moving beam 12, lifting mechanism 3, and orientation mechanism 2 structures as those in Embodiment 1, and the same distance adjusting mechanism 5 as that in Embodiment 2. The improvement of this embodiment compared with Embodiment 2 is that it includes a redundant transmission mechanism 6. As Figure 7 shown, due to the setting of the distance adjusting mechanism 5, the first orientation rotating group and the second orientation rotating group will move up and down. And the first orientation rotating group and the second orientation rotating group also need to rotate synchronously relative to the remaining orientation rotating groups. In order to ensure that the first orientation rotating group and the second orientation rotating group can also move synchronously relative to the remaining orientation rotating groups when moving up and down, the redundant transmission mechanism 6 is set in this Embodiment 3. Taking the orientation rotating group directly to the right of the second orientation rotating group as the third orientation rotating group, the third orientation rotating group is directly installed on the moving beam 12 through its fixed seat 21. Synchronous belt pulleys 61 are provided at corresponding positions of the rotating shafts 22 of the first orientation rotating group, the second orientation rotating group, and the third orientation rotating group. The first redundant synchronous belt 62 is wound around the synchronous belt pulleys 61 of the first orientation rotating group and the second orientation rotating group, and the second redundant synchronous belt 63 is wound around the synchronous belt pulleys 61 of the second orientation rotating group and the third orientation rotating group. Between the synchronous belt pulleys 61 of the first orientation rotating group and the second orientation rotating group, a first tensioning telescopic rod 64 is provided. One end of the first tensioning telescopic rod 64 is fixed on the moving beam 12, and the other end abuts against the first redundant synchronous belt 62 through a roller to tension the first redundant synchronous belt 62. Between the synchronous belt pulleys 61 of the second orientation rotating group and the third orientation rotating group, a second tensioning telescopic rod 65 is provided. One end of the second tensioning telescopic rod 65 is fixed on the moving beam 12, and the other end abuts against the second redundant synchronous belt 63 through a roller to tension the second redundant synchronous belt 63. When the third orientation rotating group is driven to rotate, the first orientation rotating group and the second orientation rotating group are synchronously driven to rotate through the transmission of the synchronous belt pulleys 61, the first redundant synchronous belt 62, and the second redundant synchronous belt 63. When the first orientation rotating group and the second orientation rotating group move due to the distance adjusting mechanism 5, since the redundant lengths of the first redundant synchronous belt 62 and the second redundant synchronous belt 63 are always tensioned by the first tensioning telescopic rod 64 and the second tensioning telescopic rod 65, it can be ensured that the first orientation rotating group and the second orientation rotating group are always driven to rotate.

[0045]

Example 4

[0046] As Figure 8 shown is a schematic structural view of the directional laying mechanism 1 shown in Embodiment 4 of the present application. The directional laying mechanism 1 of this embodiment has the same fixed beam 11, lifting mechanism 3, and directional mechanism 2 structures as those in Embodiment 1. The difference from the other Embodiments 1-3 is that it does not include the distance adjusting mechanism 5 in Embodiment 2. In the directional laying mechanism 1 shown in Embodiment 2, a distance adjusting mechanism 5 needs to be additionally provided on the moving beam 12. The setting of the distance adjusting mechanism 5 additionally increases the load of the moving beam 12 and has relatively high requirements for the overall structure and stiffness of the longitudinal paving head. Therefore, the setting of the distance adjusting mechanism 5 is cancelled in Embodiment 4. In Figure 8In Embodiment 4 shown, the movable beam 12 includes a short movable beam 121 located at the left section and a long movable beam 122 located at the right section, and the short movable beam 121 and the long movable beam 122 are hinged to each other. Two groups of orientation rotating groups of the orientation mechanism 2 are fixed to the lower part of the short movable beam 121 at the leftmost end (the end where the conveyor belt enters), namely the first orientation rotating group and the second orientation rotating group. The remaining orientation rotating groups of the orientation mechanism 2 are fixed to the lower part of the long movable beam 122. The short movable beam 121 and the fixed beam 11 are connected by two groups of first screw lifting mechanisms (only the frontmost group is shown in the figure). The first screw lifting mechanism includes a nut 31 that can be driven to rotate and is fixed to the fixed beam 11. A screw 32 is threadedly connected in the nut 31. The bottom of the screw 32 is hinged to a connecting rod 33 through a first hinge shaft 34, and the other end of the connecting rod 33 is connected to the short movable beam 121 through a second hinge shaft 35. The long movable beam 122 and the fixed beam 11 are connected by two groups of second screw lifting mechanisms and two groups of third screw lifting mechanisms (only the frontmost group is shown in the figure). The second screw lifting mechanism is close to the hinge point of the short movable beam 121 and the long movable beam 122, and the third screw lifting mechanism is located at the rightmost end of the long movable beam 122. The second screw lifting mechanism also includes a nut 31 that can be driven to rotate and is fixed to the fixed beam 11. A screw 32 is threadedly connected in the nut 31, and the bottom of the screw 32 is fixedly connected to a connecting column 36, and the other end of the connecting column 36 is fixedly installed on the top of the long movable beam 122. The third screw lifting mechanism includes a nut 31 that can be driven to rotate and is fixed to the fixed beam 11. A screw 32 is threadedly connected in the nut 31. The bottom of the screw 32 is hinged to a connecting rod 33 through a first hinge shaft 34, and the other end of the connecting rod 33 is connected to the top of the long movable beam 122 through a second hinge shaft 35. In this embodiment, when the first, second, and third screw lifting mechanisms are lifted and lowered synchronously, the short movable beam 121 and the long movable beam 122 move synchronously. When the second and third screw lifting mechanisms remain stationary and the first screw lifting mechanism extends, the short movable beam 121 tilts relative to the long movable beam 122, thereby causing the first orientation rotating group and the second orientation rotating group to move downward, so that the orientation plates of the two groups of orientation rotating groups located above the empty window area E can move downward relative to the orientation plates of the remaining orientation rotating groups, reducing the height of the empty window area E. In this way, even when the paving thickness H is relatively large, the height of the empty window area E can be compressed, avoiding the disorderly dumping of wood chips and making the wood chips laid as much as possible in the oriented direction. At the same time, no redundant mechanism needs to be provided on the movable beam 12, reducing the load and lowering the requirements for the overall structural stiffness and strength.

[0047]

Embodiment 5

[0048] As Figure 9The structural schematic diagram of the directional laying mechanism 1 shown in Embodiment 5 of the present application is shown. The directional laying mechanism 1 of this embodiment has the same fixed beam 11, short moving beam 121, long moving beam 122, lifting mechanism 3, and directional mechanism 2 structures as those in Embodiment 4. The improvement of this Embodiment 5 compared with Embodiment 4 is that the first directional rotating group and the second directional rotating group are installed on the short moving beam 121 through the distance adjusting mechanism 5, and specifically, the structure of the distance adjusting mechanism 5 is the same as that in Embodiment 2. In this embodiment, the distance that the first directional rotating group and the second directional rotating group move downward is jointly controlled by the first screw lifting mechanism and the distance adjusting mechanism 5, increasing the diversity of control.

[0049]

Embodiment 6

[0050] As Figure 10 The structural schematic diagram of the directional laying mechanism 1 shown in Embodiment 6 of the present application is shown. The directional laying mechanism 1 of this embodiment has the same structure as that in Embodiment 5, and its improvement lies in that it further includes the redundant transmission mechanism 6 shown in Embodiment 3, wherein the fixed ends of the first tensioning telescopic rod 64 and the second tensioning telescopic rod 65 of the redundant transmission mechanism 6 are both fixed on the short moving beam 121.

[0051]

Embodiment 7

[0052] As Figure 11 The structural schematic diagram of the directional laying mechanism 1 shown in Embodiment 7 of the present application is shown. The directional laying mechanism 1 of this embodiment has the same structure as that in Embodiment 4, and its improvement lies in that it further includes the redundant transmission mechanism 6 shown in Embodiment 3, wherein the fixed ends of the first tensioning telescopic rod 64 and the second tensioning telescopic rod 65 of the redundant transmission mechanism 6 are both fixed on the short moving beam 121.

[0053] According to the directional laying mechanism 1 of the above Embodiments 1 - 7, the two groups of directional rotating groups located above the empty window area E in the longitudinal paving head can be made to be closer to the conveyor belt relative to the other directional rotating groups, compressing the height of the empty window area E, avoiding the disorderly dumping of wood shavings, and making the wood shavings laid as much as possible in the directional direction.

[0054] The directional particleboard paver having the directional laying mechanism 1 shown in Embodiments 1 - 7 has the following control method:

[0055] S1: Obtain parameters such as the paving thickness H, conveyor belt speed v, wood shaving length h, and feeding flow rate;

[0056] S2: Calculate the paving angle α according to the parameters obtained in S1, and calculate the size of the empty window area according to the paving angle α;

[0057] S3: Determine whether it is necessary to adjust the height of the directional rotating group at the end of the longitudinal paving head according to the length and height of the empty window area and the wood shaving length h;

[0058] S4: If it is determined in S3 that the height of the end orientation rotation group of the longitudinal paving head needs to be adjusted, control the first screw lifting mechanism and / or the distance adjustment mechanism to extend.

[0059] It should be pointed out here that when the paving thickness H is small, even if the height of the empty window area is higher than the length h of the wood chips, it is not advisable to adjust the height of the end orientation rotation group. Because when the paving thickness H is small, if the height of the end orientation rotation group is further reduced, it is easy to block the wood chips under the end of the longitudinal paving head, which is not conducive to the laying of the wood chips. Therefore, in S3, it is necessary to judge whether to adjust the height of the end orientation rotation group of the longitudinal paving head according to the length and height of the empty window area and the length h of the wood chips. The judgment basis here can be a comparison table formed by a model verified by experience.

[0060] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0061] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more unless otherwise specifically defined.

[0062] In the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection, or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal connection of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0063] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc., mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0064] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A oriented particleboard paving machine, which includes a longitudinal paving head. The longitudinal paving head includes a feeding bin and a paving bin. A leveling rake and a feeding rake are arranged in the feeding bin, and a material scattering impeller and an orientation laying mechanism are arranged in the paving bin; It is characterized in that: The orientation laying mechanism includes a fixed beam, a moving beam, a lifting mechanism and an orientation mechanism; The fixed beam is fixed on the frame at the top of the longitudinal paving head. The moving beam is arranged below the fixed beam. The fixed beam and the moving beam are connected by a lifting mechanism. An orientation mechanism is arranged on the moving beam. The orientation mechanism includes a number of arranged orientation groups side by side; The moving beam includes a short moving beam and a long moving beam, and the short moving beam and the long moving beam are hinged to each other; Two groups of orientation groups at the leftmost end of the orientation mechanism are fixed at the lower part of the short moving beam, and the remaining orientation groups of the orientation mechanism are fixed at the lower part of the long moving beam; The first orientation group and the second orientation group are installed on the short moving beam through a distance adjusting mechanism. Each orientation group includes fixed seats on both sides. A rotating shaft is rotatably supported in the fixed seats, and orientation pieces are equidistantly fixed on the rotating shaft; The distance adjusting mechanism includes a first distance adjusting unit, a second distance adjusting unit and a distance adjusting mechanism fixed seat; The distance adjusting mechanism fixed seat is fixedly installed at the bottom of the short moving beam, and an installation groove structure matching the distance adjusting mechanism fixed seat is arranged on the short moving beam; The first distance adjusting unit includes a first distance adjusting table, and the second distance adjusting unit includes a second distance adjusting table. The fixed seat of the first orientation group is fixedly installed on the first distance adjusting table, and the fixed seat of the second orientation group is fixedly installed on the second distance adjusting table; It also includes a third orientation group located at the end of the long moving beam and adjacent to the second orientation group. The fixed seat of the third orientation group is fixedly installed on the long moving beam, and a redundant transmission mechanism is arranged between the first orientation group, the second orientation group and the third orientation group.

2. A oriented particleboard paving machine according to claim 1, It is characterized in that: The lifting mechanism includes two groups of first screw lifting mechanisms, two groups of second screw lifting mechanisms and two groups of third screw lifting mechanisms; The short moving beam and the fixed beam are connected by two groups of first screw lifting mechanisms; The long moving beam and the fixed beam are connected by two groups of second screw lifting mechanisms and two groups of third screw lifting mechanisms.

3. A oriented particleboard paving machine according to claim 2, It is characterized in that: The first screw lifting mechanism includes a nut that can be driven to rotate and is fixed on the fixed beam. A screw is threadedly connected in the nut. The bottom of the screw is hinged to a connecting rod through a first hinge shaft, and the other end of the connecting rod is connected to the short moving beam through a second hinge shaft; The second screw lifting mechanism is close to the hinge point of the short moving beam and the long moving beam, and the third screw lifting mechanism is located at the rightmost end of the long moving beam; The second screw lifting mechanism includes a nut that can be driven to rotate and is fixed on the fixed beam. A screw is threadedly connected in the nut. The bottom of the screw is fixedly connected to a connecting column, and the other end of the connecting column is fixedly installed on the top of the long moving beam; The third screw lifting mechanism includes a nut that can be driven to rotate and is fixed on the fixed beam. A screw is threadedly connected in the nut. The bottom of the screw is hinged to a connecting rod through a first hinge shaft, and the other end of the connecting rod is connected to the top of the long moving beam through a second hinge shaft.

4. A kind of oriented strand board paving machine as described in claim 3, characterized in that: The first distance adjustment unit and the second distance adjustment unit are arranged side by side on the fixed seat of the distance adjustment mechanism; the first distance adjustment unit includes a first driving oil cylinder, a first distance adjustment rod A, a first distance adjustment rod B, and a first distance adjustment table. A first fixed sliding groove is arranged on the fixed seat of the distance adjustment mechanism, and a first moving sliding groove is correspondingly arranged on the first distance adjustment table; one end of the first distance adjustment rod A is hinged to the fixed seat of the distance adjustment mechanism, and the other end is slidably installed in the first moving sliding groove; one end of the first distance adjustment rod B is slidably installed in the first fixed sliding groove, and the other end is hinged to the first distance adjustment table; the first distance adjustment rod A and the first distance adjustment rod B are cross - arranged and are hinged and connected through a first core shaft in the middle of the two. One end of the first driving oil cylinder is hinged to the fixed seat of the distance adjustment mechanism, and the other end is hinged to the first core shaft.

5. A kind of oriented strand board paving machine as described in claim 4, characterized in that: The second distance adjustment unit is symmetrically arranged relative to the first distance adjustment unit, and it includes a second driving oil cylinder, a second distance adjustment rod A, a second distance adjustment rod B, and a second distance adjustment table. A second fixed sliding groove is arranged on the fixed seat of the distance adjustment mechanism, and a second moving sliding groove is correspondingly arranged on the second distance adjustment table; one end of the second distance adjustment rod A is hinged to the fixed seat of the distance adjustment mechanism, and the other end is slidably installed in the second moving sliding groove; one end of the second distance adjustment rod B is slidably installed in the second fixed sliding groove, and the other end is hinged to the second distance adjustment table; the second distance adjustment rod A and the second distance adjustment rod B are cross - arranged and are hinged and connected through a second core shaft in the middle of the two. One end of the second driving oil cylinder is hinged to the fixed seat of the distance adjustment mechanism, and the other end is hinged to the second core shaft.

6. A kind of oriented strand board paving machine as described in claim 5, characterized in that: The redundant transmission mechanism includes three synchronous belt wheels, a first redundant synchronous belt, a second redundant synchronous belt, a first tensioning telescopic rod, and a second tensioning telescopic rod; the three synchronous belt wheels are respectively arranged at corresponding positions on the rotating shafts of the first orientation rotating group, the second orientation rotating group, and the third orientation rotating group; the first redundant synchronous belt is wound around the synchronous belt wheels of the first orientation rotating group and the second orientation rotating group, and the second redundant synchronous belt is wound around the synchronous belt wheels of the second orientation rotating group and the third orientation rotating group.

7. A kind of oriented strand board paving machine as described in claim 6, characterized in that: Between the synchronous belt wheels of the first orientation rotating group and the second orientation rotating group, a first tensioning telescopic rod is arranged. One end of the first tensioning telescopic rod is fixed on the short moving beam, and the other end abuts against the first redundant synchronous belt through a roller to tension the first redundant synchronous belt; Between the synchronous belt wheels of the second orientation rotating group and the third orientation rotating group, a second tensioning telescopic rod is arranged. One end of the second tensioning telescopic rod is fixed on the short moving beam, and the other end abuts against the second redundant synchronous belt through a roller to tension the second redundant synchronous belt.

8. A control method for a kind of oriented strand board paving machine as described in claim 7, characterized in that, including: S1: Obtain the paving thickness H, the conveyor belt speed v, the particle length h, and the feeding flow rate; S2: Calculate the paving angle α according to the parameters obtained in S1, and calculate the size of the empty window area according to the paving angle α. S3: Determine whether it is necessary to adjust the height of the end orientation rotating group of the longitudinal paving head according to the length and height of the blank window area and the length h of the wood chips; S4: If it is determined in S3 that the height of the end orientation rotating group of the longitudinal paving head needs to be adjusted, then control the first screw lifting mechanism and / or the distance adjustment mechanism to extend.

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