阅读说明：本技术 铺装机及其控制方法 (Spreading machine and control method thereof ) 是由 杨英臣 陈为亮 范乘玮 王洪博 刘志桐 陈晶 于 2021-08-06 设计创作，主要内容包括：一种铺装机及其控制方法,该铺装机包括至少一个第一物料散布装置,每个第一物料散布装置包括第一物料散布主体,第一物料散布主体具有第一出料口,且包括第一传送装置、第一调节装置以及第一升降装置；第一传送装置包括第一传送带,配置为将物料传送至第一出料口；第一调节装置设置在第一传送带的第一侧,配置为限定物料在第一传送带和第一调节装置之间传输；第一升降装置设置在第一传送带的第二侧,配置为分区域抬升或降低第一传送带,以分区域调节第一调节装置和第一传送带之间的距离,上述第一侧和第二侧相对。该铺装机的第一物料散布装置可以分区域散布不同重量的物料,进而可以实现精确铺装物料、提高铺装物料均匀性的效果。(A spreading machine and a control method thereof, the spreading machine comprises at least one first material spreading device, each first material spreading device comprises a first material spreading main body, the first material spreading main body is provided with a first discharge hole and comprises a first conveying device, a first adjusting device and a first lifting device; the first conveying device comprises a first conveying belt configured to convey the material to a first discharge port; a first conditioning device disposed on a first side of the first conveyor belt configured to limit material transport between the first conveyor belt and the first conditioning device; the first lifting device is arranged on the second side of the first conveyor belt and configured to lift or lower the first conveyor belt in different areas so as to adjust the distance between the first adjusting device and the first conveyor belt in different areas, and the first side is opposite to the second side. The first material spreading device of the spreading machine can spread materials with different weights in different areas, and then the effects of accurately spreading the materials and improving the uniformity of the spread materials can be achieved.)

1. A paving machine comprising at least one first material spreading device, wherein each of the at least one first material spreading device comprises a first material spreading body having a first discharge outlet and comprising:

a first conveyor comprising a first conveyor belt configured to convey material to the first discharge port;

a first conditioning device disposed on a first side of the first conveyor belt configured to limit the transfer of the material between the first conveyor belt and the first conditioning device; and

the first lifting device is arranged on the second side of the first conveying belt and configured to lift or lower the first conveying belt in a regional mode so as to adjust the distance between the first adjusting device and the first conveying belt in a regional mode, wherein the first side is opposite to the second side.

2. The paving machine as claimed in claim 1, wherein the first lifting device comprises a plurality of first lifting units arranged in a row or an array, each of the plurality of first lifting units being configured to be independently liftable to lift or lower the first conveyor belt by regions.

3. The paving machine of claim 2, further comprising:

the first measuring device is arranged at the downstream of the first discharge port and is configured to detect the thickness of the materials scattered on the material conveying belt from the first discharge port.

4. The paving machine of claim 3, further comprising:

the first control device is in communication connection with the first measuring device and the first lifting device, and is configured to control lifting of the plurality of first lifting units of the first lifting device according to a detection result of the first measuring device so as to adjust the distance between the first adjusting device and the first conveyor belt in different regions.

5. The paving machine as claimed in claim 4, wherein said first adjustment device is configured to be movable to adjust the distance between said first adjustment device and said first conveyor.

6. The paving machine of any one of claims 1-5, further comprising:

a first leveling device disposed downstream of the first measuring device and on a first side of the material transport belt, configured to be movable to adjust a distance between the first leveling device and the material transport belt.

7. The paving machine of claim 6, further comprising:

a first collection device disposed on a first side of the material transport belt and disposed on one side of the first leveling device, configured to collect material removed by the first leveling device.

8. The paving machine of claim 6, further comprising:

a second measuring device disposed downstream of the first sweeping device configured to measure a weight of the material on the material transport belt.

9. The paving machine of claim 8, further comprising:

a second control device communicatively coupled to the first leveling device and the second measuring device and configured to control movement of the first leveling device to adjust a distance between the first leveling device and the material transport belt based on measurements from the second measuring device.

10. The paving machine of claim 9, further comprising:

the second lifting device is arranged on the second side of the material conveying belt and is configured to lift or lower the material conveying belt in a regional mode so as to adjust the distance between the first scanning device and the material conveying belt in a regional mode, wherein the second side of the material conveying belt is opposite to the first side of the material conveying belt.

11. The paving machine as claimed in claim 10, wherein the second lifting device comprises a plurality of second lifting units arranged in a row or an array, each of the plurality of second lifting units being configured to be independently liftable to raise or lower the material transport belt in regions.

12. The paving machine of any one of claims 1-5, further comprising: a second material distribution device and a third material distribution device arranged upstream and downstream of said at least one first material distribution device, respectively,

wherein the second and third material distribution devices are configured to distribute a different material than the at least one first material distribution device.

13. The paving machine as claimed in any one of claims 1 to 5, wherein said at least one first material distribution device comprises two first material distribution devices, said two first material distribution devices being symmetrically arranged.

14. A method of controlling the paving machine of claim 1, comprising:

measuring the thickness of the material on the material conveyor, an

And controlling the first lifting device to lift or lower the first conveyor belt in different areas according to the thickness so as to adjust the distance between the first adjusting device and the first conveyor belt in different areas.

15. The control method according to claim 14, further comprising:

and controlling a first adjusting device to move according to the thickness so as to adjust the distance between the first adjusting device and the first conveyor belt.

16. The control method according to claim 14 or 15, wherein the spreader further comprises a first sweeping device arranged on a first side of the material conveyor belt and downstream of the first measuring device;

the control method further comprises the following steps:

measuring the weight of the material on the material conveyor belt passing the first sweeping device, an

Controlling the first sweeping device to move according to the weight so as to adjust the distance between the first sweeping device and the material conveying belt.

Technical Field

Embodiments of the present disclosure relate to a paving machine and a control method thereof.

Background

Particle board is an artificial board made up by cutting various branches, small-diameter wood, fast-growing wood and wood dust into chips with a certain specification, drying, mixing with additives such as sizing material, hardening agent and water-proofing agent, and pressing at a certain temp. and pressure. In the production process of shaving boards, the process of spreading the fragmented materials on the conveyor belt, also known as the process of wood shaving or slab laying, is carried out with a laying machine, and the laying process has a decisive influence on the performance of the shaving boards.

Disclosure of Invention

At least one embodiment of the present disclosure provides a paving machine comprising at least one first material spreading device, wherein each of the at least one first material spreading device comprises a first material spreading body having a first discharge port and comprising a first conveying device, a first adjusting device, and a first lifting device; the first conveying device comprises a first conveying belt configured to convey the materials to the first discharge port; a first conditioning device disposed on a first side of the first conveyor belt configured to limit the transfer of the material between the first conveyor belt and the first conditioning device; the first lifting device is arranged on the second side of the first conveyor belt and is configured to lift or lower the first conveyor belt in a regional mode so as to adjust the distance between the first adjusting device and the first conveyor belt in a regional mode, wherein the first side is opposite to the second side.

For example, in the paving machine provided by at least one embodiment of the present disclosure, the first lifting device includes a plurality of first lifting units arranged in a row or an array, and each of the plurality of first lifting units is configured to be independently lifted and lowered to lift or lower the first conveyor belt in different regions.

For example, at least one embodiment of the present disclosure provides a paving machine further including: the first measuring device is arranged at the downstream of the first discharge port and is configured to detect the thickness of the materials scattered on the material conveying belt from the first discharge port.

For example, at least one embodiment of the present disclosure provides a paving machine further including: the first control device is in communication connection with the first measuring device and the first lifting device, and is configured to control lifting of the plurality of first lifting units of the first lifting device according to a detection result of the first measuring device so as to adjust the distance between the first adjusting device and the first conveyor belt in different regions.

For example, at least one embodiment of the present disclosure provides the spreading machine, wherein the first adjusting device is configured to be movable to adjust a distance between the first adjusting device and the first conveyor belt.

For example, in the paving machine provided by at least one embodiment of the present disclosure, the first control device is further communicatively connected to the first adjusting device, and is further configured to control the first adjusting device to move according to the detection result of the first measuring device so as to adjust the distance between the first adjusting device and the first conveyor belt.

For example, at least one embodiment of the present disclosure provides a paving machine further including: a first leveling device disposed downstream of the first measuring device and on a first side of the material transport belt, configured to be movable to adjust a distance between the first leveling device and the material transport belt.

For example, at least one embodiment of the present disclosure provides a paving machine further including: a first collection device disposed on a first side of the material transport belt and disposed on one side of the first leveling device, configured to collect material removed by the first leveling device.

For example, at least one embodiment of the present disclosure provides a paving machine further including: a second measuring device disposed downstream of the first sweeping device configured to measure a weight of the material on the material transport belt.

For example, at least one embodiment of the present disclosure provides a paving machine further including: a second control device communicatively coupled to the first leveling device and the second measuring device and configured to control movement of the first leveling device to adjust a distance between the first leveling device and the material transport belt based on measurements from the second measuring device.

For example, at least one embodiment of the present disclosure provides a paving machine further including: the second lifting device is arranged on the second side of the material conveying belt and is configured to lift or lower the material conveying belt in a regional mode so as to adjust the distance between the first scanning device and the material conveying belt in a regional mode, wherein the second side of the material conveying belt is opposite to the first side of the material conveying belt.

For example, in the paving machine provided by at least one embodiment of the present disclosure, the second lifting device includes a plurality of second lifting units arranged in a row or an array, and each of the plurality of second lifting units is configured to be independently lifted and lowered to lift or lower the material conveying belt in different regions.

For example, in the paving machine provided by at least one embodiment of the present disclosure, the second control device is further communicatively connected to the second lifting device, and configured to control lifting of a plurality of second lifting units of the second lifting device according to a measurement result of the second measurement device, so as to adjust a distance between the first leveling device and the material transport belt in different regions.

For example, at least one embodiment of the present disclosure provides a paving machine further including: a second material distribution device and a third material distribution device disposed upstream and downstream of the at least one first material distribution device, respectively, wherein the second material distribution device and the third material distribution device are configured to distribute a material different from the at least one first material distribution device.

For example, at least one embodiment of the present disclosure provides a paving machine, wherein the at least one first material spreading device includes two first material spreading devices, and the two first material spreading devices are symmetrically arranged.

At least one embodiment of the present disclosure further provides a method for controlling a paving machine, including: the thickness of the materials on the material conveying belt is measured, the first lifting device is controlled to lift or lower the first conveying belt in a regional mode according to the thickness, and therefore the distance between the first adjusting device and the first conveying belt is adjusted in a regional mode.

For example, the control method provided in at least one embodiment of the present disclosure further includes: and controlling a first adjusting device to move according to the thickness so as to adjust the distance between the first adjusting device and the first conveyor belt.

For example, at least one embodiment of the present disclosure provides a control method wherein the paving machine further includes a first sweeping device disposed on a first side of the material transport belt and downstream of the first measuring device; the control method further comprises the following steps: measuring a weight of material on the material transport belt passing the first leveling device, and controlling the first leveling device to move to adjust a distance between the first leveling device and the material transport belt in accordance with the weight.

For example, at least one embodiment of the present disclosure provides the control method, wherein the placement machine further includes a second lifting device disposed on a second side of the material conveyor belt, the first side of the material conveyor belt being opposite to the second side of the material conveyor belt; the control method further comprises the following steps: and controlling the second lifting device to lift or lower the material conveying belt in different areas according to the weight so as to adjust the distance between the first scanning device and the material conveying belt in different areas.

For example, the control method provided in at least one embodiment of the present disclosure further includes: controlling the first lifting device and/or controlling the first adjusting device according to the weight to adjust the distance between the first adjusting device and the first conveying device.

Drawings

To more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below, and it is apparent that the drawings in the following description relate only to some embodiments of the present disclosure and are not limiting to the present disclosure.

Fig. 1 is a schematic view of a paving machine provided in accordance with at least one embodiment of the present disclosure;

fig. 2 is a schematic view of a first adjusting device and a first lift in a paving machine provided in at least one embodiment of the present disclosure;

fig. 3 is a schematic view of a first sweeping device, a first collecting device, and a second lifting device in the paving machine according to at least one embodiment of the disclosure; and

fig. 4 is another schematic view of the first sweeping device, the first collecting device, and the second lifting device in the paving machine according to at least one embodiment of the disclosure.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

At present, in production lines of plates such as shaving boards, oriented strand boards and the like, the longitudinal and transverse paving precision of materials on a conveyor belt is an important index influencing the quality of formed slabs, and at the moment, the longitudinal and transverse paving precision of the materials can be adjusted by adopting various control methods. The longitudinal direction refers to the conveying direction of the materials on the conveyor belt, and the transverse direction refers to the direction perpendicular to the longitudinal direction.

For example, in some embodiments, the longitudinal accuracy of the material layup can be adjusted by controlling the bin blanking speed, e.g., using a slab scale to measure the weight of a slab laid on a conveyor belt and controlling the bin blanking speed based on the weight. However, because the slab scale is located the position of being apart from the feed bin unloading district tens meters beyond usually, and because reasons such as material form, material self weight and material extrusion in the feed bin cause bulk density's change for the weight fluctuation of the slab of mating formation on the conveyer belt is great, and the slab scale is far away from the feed bin unloading district, and the fluctuation of unable real-time measurement feed bin unloading can cause vertical precision of mating formation unstability from this. In addition, during the fall of the material, uncontrolled air vortices occur, which can lead to an undesirable weight per unit area or density distribution of the material in different directions, in particular in the transverse direction, and finally to an undesirable accuracy of the longitudinal and transverse laying of the slabs.

For example, in some embodiments, a material returning spiral and an adjustable baffle may be added in the storage bin, when the material is dispersed, the material recovery amount is adjusted by controlling the opening of the baffle, and the adjustable baffle is controlled by a transverse density scanner, so as to achieve the purpose of adjusting the transverse density of the slab. However, when the daily production of the mat is too high, for example, 2000 cubic meters or more, the opening of the baffle and the amount of spiral return in this manner are limited, and during the spreading of the material, more material is recovered, so that the material type of the whole mat in the transverse direction is not uniform, resulting in uneven density in the transverse direction of the mat.

For example, in other embodiments, a multi-segment finishing roller above the slab may be used, and the finishing roller of each segment is used to adjust the transverse paving precision of the slab, but such a roller may cause the slabs in two adjacent regions to be too abrupt and unsmooth during the adjustment process, so that the adjusted slabs may have marks left thereon, and thus the adjusted slab paving precision is not ideal.

At least one embodiment of the present disclosure provides a paving machine and a control method thereof, the paving machine including at least one first material spreading device, wherein each of the at least one first material spreading device includes a first material spreading body having a first discharge port, and including a first conveying device, a first adjusting device, and a first lifting device; the first conveying device comprises a first conveying belt configured to convey the material to a first discharge port; a first conditioning device disposed on a first side of the first conveyor belt configured to limit material transport between the first conveyor belt and the first conditioning device; the first lifting device is arranged on the second side of the first conveyor belt and configured to lift or lower the first conveyor belt in different areas so as to adjust the distance between the first adjusting device and the first conveyor belt in different areas, and the first side is opposite to the second side.

The first material spreading device of the paving machine provided by the embodiment of the disclosure can spread materials with different weights in different areas, and further can realize the effect of accurately paving the materials. For example, when forming a mat with the paver, the paver may accurately control the scattering of material to assist in forming a uniform mat.

The paving machine and the control method thereof according to the present disclosure will be described below with reference to several specific examples.

At least one embodiment of the present disclosure provides a spreading machine, a schematic view of which is shown in fig. 1, and which comprises, as shown in fig. 1, at least one first material spreading device M1, each of the at least one first material spreading devices M1 comprising a first material spreading body 11, the first material spreading body 11 having a first discharge opening 12 and comprising a first conveying device 13, a first adjusting device 14 and a first lifting device 15. For example, the first material spreading body 1 may contain therein a material, which may be in a chip or pellet form, and the first discharge port 12 faces the material conveyor belt T to spread the material W on the material conveyor belt T.

For example, as shown in fig. 1, the first conveyor 13 includes a first conveyor belt 131 and a driving device for driving the first conveyor belt 131 to move, and the first conveyor belt 131 is configured to convey the material to the first discharge hole 12. For example, the driving device includes a driving motor and a roller, the first belt 131 is wound around the roller, and the driving motor is configured to drive the roller to rotate, so as to drive the first belt 131 to move.

For example, as illustrated in fig. 1, the first conditioning device 14 is arranged on a first side (upper side in the figure) of the first conveyor belt 131, configured to define the transfer of the material between the first conveyor belt 131 and the first conditioning device 14, and thus also the output quantity of the material. The first lifting device 15 is disposed at a second side (a lower side in the drawing) of the first conveyor belt 131, and is configured to lift or lower the first conveyor belt 131 by regions to adjust a distance between the first adjusting device 14 and the first conveyor belt 131 by regions, that is, to adjust an amount of the material transferred between the first adjusting device 14 and the first conveyor belt 131 by regions, thereby achieving adjustment of an amount of the material output by regions in a lateral direction. The first and second sides of the first conveyor belt 131 are opposite to each other.

It is noted that the conveying direction of the material transport belt T indicated by the arrow in fig. 1 is a longitudinal direction, and the transverse direction refers to a direction perpendicular to the longitudinal direction on the plane of the material transport belt T.

For example, fig. 2 shows a schematic diagram of a first adjusting device and a first lifting and lowering in a paving machine provided by at least one embodiment of the present disclosure. As shown in fig. 2, in some embodiments, the first lifting device 15 includes a plurality of first lifting units 151 arranged in a row or an array, and each of the plurality of first lifting units 151 is configured to be independently lifted and lowered to lift or lower the first conveyor belt 131 in different regions.

The number of the first lifting units 151 is not particularly limited in the embodiments of the present disclosure, for example, in some embodiments, the first lifting device 15 includes at least six first lifting units 151, for example, eight, ten or more, so as to achieve precise adjustment. For example, each of the first lifting units 151 includes a lifting platform, a lifting mechanism (e.g., a telescopic rod), and a displacement sensor (not specifically shown in the drawings), which is configured to monitor a lifting displacement amount of the lifting platform. For example, the elevating mechanism of each first elevating unit 151 may be driven using a stepping motor. Thereby, the first elevating device 15 may be implemented as a piano type elevating device.

For example, in some embodiments, as shown in fig. 1 and 2, the first adjusting device 14 is configured to be movable (e.g., move up and down) to adjust the distance between the first adjusting device 14 and the first conveyor belt 131.

For example, in some embodiments, the first conditioning device 14 may include a rake for homogenizing the material to be output; alternatively, as shown in fig. 2, the first adjusting device 14 may include an adjusting roller 141. For example, the roll surface of the adjustment roll 141 includes a friction member 142, and the friction member 142 includes a needle-like nail, a saw-tooth blade, or a thin sheet. For example, the height of the material passing through the first adjusting device 14 (i.e. the amount of material passing through the first adjusting device 14) is determined by the distance between the first adjusting device 14 and the first conveyor belt 131, e.g. the height of the material passing through the first adjusting device 14 is substantially equal to the distance between the first adjusting device 14 and the first conveyor belt 131. For example, the first adjustment device 14 may be driven by a stepper motor.

For example, in other embodiments, the first adjusting device 14 may be fixed, that is, the first adjusting device 14 cannot move, and the distance between the first adjusting device 14 and the first conveyor belt 131 is constant. In this case, the output amount of the material may be controlled by controlling (e.g., by the first control device C1, described later) the conveying speed of the first conveyor belt 131.

For example, in some embodiments, as shown in fig. 1, the paving machine may further include a first measuring device 16, the first measuring device 16 being disposed downstream of the first discharge port 12 and configured to detect a thickness of the material falling from the first discharge port 12 onto the material conveyor T.

For example, in some examples, the first measurement device 16 may be a laser ranging device that may derive the thickness of the material on the material conveyor belt T by measuring the height of the material on the material conveyor belt T. For example, the laser ranging device may include a plurality of laser ranging units, which may measure the thickness of the material in different regions in the lateral direction.

For example, in some embodiments, as shown in fig. 1, the paving machine may further include a first control device C1, the first control device C1 is communicatively connected to the first measuring device 16 and the first lifting device 15, for example, by a wired or wireless manner, and the first control device C1 is configured to control the lifting of the plurality of first lifting units 151 of the first lifting device 15 according to the detection result of the first measuring device 16, so as to adjust the distance between the first adjusting device 14 and the first conveyor belt 131 by regions.

For example, in some examples, when the first measuring device 16 measures that the thickness of the material in the first area of the material conveyer belt T is larger, for example, larger than a first value of the target thickness, the first lifting unit 151 of the first lifting device 15 corresponding to the first area may be correspondingly lifted according to the first value, so that the amount of the material scattered in the first area is reduced by a corresponding amount, and the material scattered in the first area subsequently reaches the target thickness. For example, when the first measuring device 16 measures that the thickness of the material in the second area on the material conveyer belt T is smaller, for example, smaller than a second value of the target thickness, the first lifting unit 151 of the first lifting device 15 corresponding to the second area may be correspondingly lowered according to the second value, so that the amount of the material scattered in the second area is increased by a corresponding amount, and the subsequent material scattered in the second area reaches the target thickness.

For example, in some embodiments, the first control device C1 may be further communicatively connected to the first adjusting device 14, for example, by a wired or wireless manner, and further configured to control the first adjusting device 14 to move to adjust the distance between the first adjusting device 14 and the first conveyor belt 131 according to the detection result of the first measuring device 16. Alternatively, in other embodiments, the first control device C1 may not be communicatively coupled to the first adjustment device 14, and the first adjustment device 14 may be controlled by manual control.

For example, when the first measuring device 16 measures that the thickness of the entire material on the material transport belt T is larger or smaller than the target thickness, the distance between the first adjusting device 14 and the first conveyor belt 131 may be adjusted in its entirety by adjusting the height of the first adjusting device 14. Thus, the first adjusting device 14 can be adjusted in its entirety, the first lifting device 15 can be adjusted in its local part more precisely, and on the other hand, by means of the real-time control of the first control device C1, the first material distribution device M1 can be adjusted in real time to distribute material.

For example, in some embodiments, the first control device C1 may be further communicatively connected to the first conveying device 13, for example, by a wired or wireless manner, and further configured to control the conveying speed of the first conveyor belt 131 according to the detection result of the first measuring device 16, so as to control the output amount of the material.

For example, in some embodiments, as shown in fig. 1, the paving machine may further include a first leveling device 17, the first leveling device 17 being disposed downstream of the first measuring device 16 and on a first side (upper side in the figure) of the material transport belt T, configured to be movable (e.g., up and down) to adjust a distance between the first leveling device 17 and the material transport belt T to further control the amount of material passing between the first leveling device 17 and the material transport belt T.

For example, in some embodiments, as shown in fig. 1, the paving machine may further include a first collecting device 18, the first collecting device 18 being disposed on a first side of the material conveyor belt T and on a side (shown as the left side) of the first sweeping device 17, and configured to collect the material removed by the first sweeping device 17, i.e., collect the excess material swept by the first sweeping device 17, so that the excess material can be recycled.

For example, the first collecting device 18 may be a suction device or a transport device, e.g. may be configured to provide the collected material to the first material spreading body 11 for material recovery.

In the embodiment of the present disclosure, by controlling the first adjusting device 14, the first lifting device 15, and the transmission speed of the first conveyor belt 131, the blanking amount of the first material spreading main body 11 can be controlled, so as to ensure a stable and controllable retrace amount, that is, an excess amount of the material recovered by the first collecting device 18 after being swept by the first sweeping device 17.

For example, in some embodiments, as shown in fig. 1, the spreading machine may further include a second lifting device 19, the second lifting device 19 being disposed at a second side (lower side in the drawing) of the material conveyor belt T, and configured to lift or lower the material conveyor belt T in regions to adjust the distance between the first sweeping device 17 and the material conveyor belt T in regions. The second side of the material conveyor belt T is opposite to the first side of the material conveyor belt T.

For example, fig. 3 and 4 show schematic views of the first sweeping device, the first collecting device, and the second lifting device in different directions, respectively. As shown in fig. 3 and 4, in some examples, the first sweeping mechanism 4-1 may include a sweeping roller 171, a roller surface of the sweeping roller 171 including a friction element 172, the friction element 172 including a pin-like nail, a saw-tooth blade, or a sheet. For example, excess material on the material conveying belt T beyond the circumferential surface of the sweep roller 171 can be removed by the friction member 172 on the surface of the sweep roller at a high speed into the first collecting device 18 for material recovery. For example, the sweep roller 171 may be rotated at a high speed above the material, and the lower surface of the sweep roller 171 is rotated in a direction opposite to the conveying direction of the material conveying belt T. For example, the sweep roller 171 may be driven by a stepping motor.

For example, as shown in fig. 4, the second lifting device 19 includes a plurality of second lifting units 191 arranged in a row or an array, and each of the plurality of second lifting units 191 is configured to be independently lifted and lowered to lift or lower the material conveyer T in different regions.

The number of the second lifting units 191 is not particularly limited in the embodiments of the present disclosure, for example, in some embodiments, the second lifting device 19 includes at least six second lifting units 191, for example, eight, ten or more, so as to achieve a precise adjustment effect. For example, each of the second lifting units 191 includes a lifting platform, a lifting mechanism (e.g., a telescopic rod), and a displacement sensor (not specifically shown in the drawings), and the displacement sensor is configured to monitor a lifting displacement amount of the lifting platform. For example, the elevating mechanism of each second elevating unit 191 may be driven using a stepping motor. Thereby, the second lifting device 19 may be implemented as a piano type lifting device.

For example, in some embodiments, as shown in fig. 1, the paving machine may further include a second measuring device 20, the second measuring device 20 being disposed downstream of the first leveling device 17, e.g., adjacent to the first leveling device 17, the second measuring device 20 being configured to measure the weight of the material on the material conveyor T, i.e., to measure the weight of the material passing through the first leveling device 17.

For example, in some examples, the second measuring device 20 may be a weight scale that may directly measure the weight of the material on the material conveyor belt T. For example, in some examples, the weight scale may detect the overall weight of the material on the material conveyor belt T in the area where the weight scale is located.

For example, in other examples, the weighing scale may include a plurality of weight detecting units, and the plurality of weight detecting units may measure the weight of the material in different regions in the lateral direction, so that the density of the material in different regions may also be obtained.

For example, in some embodiments, as shown in fig. 1, the paving machine may further include a second control C2. For example, when different sizes of sheet material are produced, the weighing scales may be preset with a target weight, and the second control device C2 is configured to control the first leveling device 17 and/or the second lifting device 19 to adjust the blanking amount of the first material spreading body 11 according to the comparison between the measurement result of the weighing scales and the target weight, so that the measurement result of the weighing scales substantially coincides with the target weight.

For example, in some embodiments, the second control device C2 may be communicatively coupled to the second measuring device 20 and the first leveling device 17, such as by wired or wireless communication, and configured to control the movement of the first leveling device 17 to adjust the distance between the first leveling device 17 and the material conveyor belt T based on the measurements of the second measuring device 20.

For example, when the second measuring device 20 measures a weight of the material on the material conveyor belt T as a whole that is greater or smaller than the target weight, the distance between the first leveling device 17 and the material conveyor belt T may be adjusted as a whole by adjusting the height of the first leveling device 17.

For example, in some embodiments, the second control device C2 is further communicatively connected to the second lifting device 19, for example, by a wired or wireless communication connection, and configured to control the lifting and lowering of the plurality of second lifting units 191 of the second lifting device 19 according to the measurement result of the second measuring device 20, so as to adjust the distance between the first leveling device 17 and the material conveyer belt T by regions.

For example, when the second measuring device 20 measures that the weight of the material in the first area is larger, for example, larger than the first value of the target weight, the second lifting unit 191 corresponding to the first area in the second lifting device 19 may be correspondingly lifted according to the first value, so that the amount of the material passing through the first leveling device 17 in the first area is reduced by a corresponding amount, and the material passing through the first leveling device 17 in the subsequent first area reaches the target weight/density. For example, when the second measuring device 20 measures that the weight of the material in the second area is smaller, for example, smaller than the second value of the target weight, the second lifting unit 191 corresponding to the second area in the second lifting device 19 may be correspondingly lowered according to the second value, so as to increase the amount of the material passing through the first leveling device 17 in the first area by a corresponding amount, and further, the material passing through the first leveling device 17 in the subsequent first area reaches the target weight/density.

Therefore, the first leveling device 17 can realize overall adjustment, the second lifting device 19 can realize more accurate local adjustment, and on the other hand, the real-time adjustment of the material passing through the first leveling device can be realized through the real-time control function of the second control device C2.

For example, in other embodiments, the second lifting device 19 may be controlled by other control devices or manually. For example, field personnel measure the transverse surface density of the material, and if the density at a certain position is higher or lower, the lifting of the corresponding lifting unit in the second lifting device 19 can be manually controlled; alternatively, an additional density detecting device may be used to detect the lateral areal density of the material, and an additional control device may be used to control the elevation of the corresponding lifting unit in the second lifting device 19 accordingly based on the detected lateral areal density.

For example, in some embodiments, the second control device C2 may be further communicatively connected to the first lifting device 15 and further configured to control the lifting of the plurality of first lifting units 151 of the first lifting device 15 according to the measurement result of the second measurement device 20. For example, in some examples, when the second measuring device 20 measures that the weight of the material in a certain area on the material conveyer belt T is smaller than the target weight, the material amount in the corresponding area may be increased by adjusting a certain first lifting unit 151 of the first lifting device 15 to descend, so that the material amount in the area may reach the target weight.

For example, in some embodiments, the second control device C2 may be further communicatively connected to the first adjusting device 14, and further configured to control the first adjusting device 14 to move according to the measurement result of the second measuring device 20 so as to adjust the distance between the first adjusting device 14 and the first conveyor belt 131. For example, when the second measuring device 20 measures that the weight of the entire material on the material conveyor belt T is smaller than the target weight, the entire material amount can be increased by adjusting the first adjusting device 14 to rise to a certain height, so that the material amount can reach the target weight.

For example, in some embodiments, the second control device C2 may be further configured to be communicatively connected to the first conveyor 13 and further configured to control the conveying speed of the first conveyor belt 131, so as to adjust the amount of material output per unit time from the first material spreading body 11 according to the demand, and thus the amount of material scattered per unit area on the material conveyor belt T.

It should be noted that in the embodiment of the present disclosure, the first control device C1 and the second control device C2 may be the same control device or different control devices, or the paving machine may further include other control devices as long as the above control functions can be realized.

Thus, in the embodiment of the present disclosure, along the conveying direction of the material conveyer T, i.e. the running direction of the production line, the first detecting device 16 is located at the inlet of the first leveling device 17, the second detecting device 20 is located at the outlet of the first leveling device 17 and is as close to the first leveling device 17 as possible, and according to the detection result of the first detecting device 16, the first controller can control the blanking amount of the first material spreading main body 11 to ensure a stable and controllable retrace amount, i.e. the excessive material amount recovered by the first collecting device 18 after being leveled by the first leveling device 17. For example, the height of the transverse material before being swept by the first sweeping device 17 can be controlled by the lifting of each first lifting unit 151 in the first lifting device 15, so as to ensure a uniform transverse retrace amount.

On the other hand, when the second detecting device 20 detects that the weight of the material W on the material conveyer belt T is too high or too low, the first leveling device 17 and the second lifting device 19 can be adjusted accordingly, the first leveling device 17 can recover uneven material through the first collecting device 18 while leveling, so that the weight of the leveled material is kept at a proper value, and the stability of the paving weight of the material in the transverse direction and the longitudinal direction is ensured.

In another aspect, in the embodiment of the present disclosure, the height of the first conveyor belt 131 or the material conveyor belt T is adjusted by a lifting device below the first conveyor belt 131 or the material conveyor belt T, and then the volume of the material passing over the first conveyor belt 131 or the material conveyor belt T is adjusted, because the height of the first conveyor belt 131 or the material conveyor belt T may be continuously changed in adjacent areas (e.g., an adjusted area and an unadjusted area), smooth adjustment of materials in adjacent areas may be achieved, and the materials in the adjacent areas may be smoothly transitioned without sudden change during adjustment, thereby improving the uniformity of material pavement.

For example, when the paving machine provided by the embodiment of the present disclosure is used to form a board material, the board material generally includes a first surface layer, a second surface layer, and a core layer between the first surface layer and the second surface layer, and at this time, the first material spreading device M1 may be used to contain and spread the core material to ensure the uniformity of the core material.

For example, in some embodiments, as shown in fig. 1, the at least one first material distribution device M1 may include two first material distribution devices M1, the two first material distribution devices M1 being symmetrically disposed. Thereby achieving better material spreading effect. In addition, in other embodiments, the number of the first material spreading devices M1 may be one, three or more, and the number of the first material spreading devices M1 is not particularly limited in the embodiments of the present disclosure.

For example, in some embodiments, as shown in fig. 1, the paving machine may further include a second material spreading device M2 and a third material spreading device M3, the second material spreading device M2 and the third material spreading device M3 being disposed upstream and downstream of the first material spreading device M1, respectively, the second material spreading device M2 and the third material spreading device M3 being configured to spread a different material than the first material spreading device M1. For example, the second material spreading device M2 and the third material spreading device M3 are used to contain and spread the materials of the first skin layer and the second skin layer, respectively, while the first material spreading device M1 is used to contain and spread the material of the core layer.

The embodiments of the present disclosure do not limit the number of the second material spreading device M2 and the third material spreading device M3, and in the example of fig. 1, the second material spreading device M2 and the third material spreading device M3 are both one; in other examples, the second material spreading device M2 and the third material spreading device M3 may each be two or more.

For example, in some embodiments, as shown in fig. 1, each of the second material spreading device M2 and the third material spreading device M3 may include a discharge port 60, a fan 30, an air duct 40, and a wind deflector 50, wherein the discharge port 60 faces the material conveyor T, and the fan 30, the air duct 40, and the vibrating screen 50 are used to circulate air to blow and homogenize the material in the second material spreading device M2 and the third material spreading device M3. For example, the second material distribution device M2 and the third material distribution device M3 may be symmetrically disposed. The embodiments of the present disclosure do not limit the specific structures of the second material spreading device M2 and the third material spreading device M3.

It should be noted that the paving machine provided in the embodiments of the present disclosure may further include other structures, and reference may be made to related technologies specifically, and details are not described herein again.

At least one embodiment of the present disclosure further provides a control method for a paving machine, where the paving machine may be the paving machine provided by the embodiment of the present disclosure, and the control method includes: the thickness of the materials on the material conveying belt is measured, the first lifting device is controlled to lift or lower the first conveying belt in a regional mode according to the thickness, and therefore the distance between the first adjusting device and the first conveying belt is adjusted in the regional mode.

For example, referring to the spreading machine shown in fig. 1, the first measuring device 16 may be used to measure the thickness of the material on the material transporting belt, and then the first control device C1 may be used to control the first lifting device 15 to lift or lower the first conveying belt by regions according to the measured thickness so as to adjust the distance between the first adjusting device 14 and the first conveying belt 131 by regions.

For example, the first lifting device 15 includes a plurality of first lifting units 151 arranged in a row or an array, and each of the plurality of first lifting units 151 is configured to be independently lifted and lowered to lift or lower the first conveyor belt 131 by regions.

For example, when the thickness of the material scattered in the first area on the material transportation belt is measured to be larger, for example, larger than a first value of the target thickness, the first lifting unit 151 of the first lifting device 15 corresponding to the first area may be correspondingly lifted according to the first value, so that the amount of the material scattered in the first area is reduced by a corresponding amount, and the subsequent material scattered in the first area reaches the target thickness. For example, when the thickness of the material scattered in the second area on the material transportation belt is measured to be smaller, for example, smaller than a second value of the target thickness, the first lifting unit 151 corresponding to the second area in the first lifting device 15 may be correspondingly lowered according to the second value, so that the amount of the material scattered in the second area is increased by a corresponding amount, and further, the subsequent material scattered in the second area reaches the target thickness.

For specific setting and specific adjusting manner of the first lifting device 15, reference may be made to the above embodiments, and details are not described herein.

For example, in some embodiments, the control method may further include: and controlling the first adjusting device to move according to the thickness so as to adjust the distance between the first adjusting device and the first conveyor belt.

For example, referring to the spreading machine shown in fig. 1, the first control device C1 may also control the first adjusting device 14 to move as a whole to adjust the distance between the first adjusting device 14 and the first conveyor belt 131 according to the measured thickness.

For example, when the first measuring device 16 measures that the thickness of the entire material on the material transport belt T is larger or smaller than the target thickness, the distance between the first adjusting device 14 and the first conveyor belt 131 may be adjusted in its entirety by adjusting the height of the first adjusting device 14.

For the specific arrangement and the specific adjustment manner of the first adjustment device 14, reference may be made to the above embodiments, and details are not described herein.

Thereby, the first adjusting device 14 can achieve overall adjustment, and the first lifting device 15 can achieve more precise local adjustment; on the other hand, by the above-described real-time control action, real-time adjustment of the distribution of the material by the first material distribution device M1 can be achieved.

For example, in some embodiments, referring to the paving machine shown in fig. 1, the paving machine further includes a first sweeping device 17 disposed on a first side of the material conveyor T and downstream of the first measuring device 16. At this time, the control method may further include: the method includes measuring a weight of the material on the material transport belt passing the first sweeping device, and controlling the first sweeping device to move to adjust a distance between the first sweeping device and the material transport belt based on the weight.

For example, referring to the paving machine shown in fig. 1, the second measuring device 20 may also control the movement of the first sweeping device 17 to adjust the distance between the first sweeping device 17 and the material conveyor T based on the measured weight.

For example, when the weight of the material mass on the material conveyor belt T is measured to be both larger or smaller than the target weight, the distance between the first leveling device 17 and the material conveyor belt T may be adjusted in its entirety by adjusting the height of the first leveling device 17.

For the specific arrangement and the specific adjustment manner of the first sweeping device 17, reference may be made to the above embodiments, which are not described herein again.

For example, in some embodiments, the paving machine further includes a second lifting device 19 disposed on a second side of the material conveyor belt T, the first side of the material conveyor belt T being opposite the second side of the material conveyor belt T. At this time, the control method may further include: and controlling the second lifting device to lift or lower the material conveying belt in different areas according to the weight so as to adjust the distance between the first scanning device and the material conveying belt in different areas.

For example, referring to the spreading machine shown in fig. 1, the second measuring device 20 may be used to measure the weight of the material on the material conveyor T passing through the first sweeping device 17, and then the second control device C2 may be used to control the second lifting device 19 to raise or lower the material conveyor in regions according to the measured weight to adjust the distance between the first sweeping device 17 and the material conveyor T in regions.

For example, the second lifting device 19 includes a plurality of second lifting units 191 arranged in a row or an array, and each of the plurality of second lifting units 191 is configured to be independently lifted and lowered to lift or lower the material conveyer belt T in different regions.

For example, when the weight of the material in the first area on the material conveyer belt T is measured to be larger, for example, larger than the first value of the target weight, the second lifting unit 191 corresponding to the first area in the second lifting device 19 may be correspondingly lifted according to the first value, so that the amount of the material passing through the first leveling device 17 in the first area is reduced by a corresponding amount, and the material passing through the first leveling device 17 in the subsequent first area reaches the target weight/density. For example, when the weight of the material in the second area is measured to be smaller, for example, smaller than the second value of the target weight, the second lifting unit 191 corresponding to the second area in the second lifting device 19 may be correspondingly lowered according to the second value, so as to increase the amount of the material passing through the first leveling device 17 in the first area by a corresponding amount, and further, the material passing through the first leveling device 17 in the subsequent first area reaches the target weight/density.

For specific setting and specific adjusting manner of the second lifting device 19, reference may be made to the above embodiments, and details are not described herein.

Thus, the first leveling device 17 can be adjusted as a whole, the second lifting device 19 can be adjusted more precisely as a part, and on the other hand, the real-time adjustment of the material passing through the first leveling device can be achieved by the above-mentioned real-time control function.

For example, in some embodiments, the control method may further include: and controlling the first lifting device and/or controlling the first adjusting device according to the weight to adjust the distance between the first adjusting device and the first conveyor belt.

For example, referring to the paving machine shown in fig. 1, the second measuring device 20 may also control the elevation of the plurality of first elevation units 191 of the first elevation device 19 according to the above-described measured weight. For example, the second measuring device 20 may also control the first adjusting device 14 to move according to the measured weight to adjust the distance between the first adjusting device 14 and the first conveyor belt 131. The above control method can refer to the above embodiments, and is not described herein again.

For example, in some embodiments, the control method may further include: the conveying speed of the first conveyor belt is controlled according to the measured height or weight.

For example, with reference to the spreading machine shown in fig. 1, the first control device C1 and/or the second control device C2 may also be configured to be in communication with the first conveyor 13 and to control the conveying speed of the first conveyor belt 131 according to the measured height or weight, so that the amount of material delivered per unit time from the first material spreading body 11 may also be adjusted as desired.

It should be noted that, in the embodiment of the present disclosure, the various control functions may be implemented by using the same control device or different control devices, as long as the various control functions can be implemented.

In embodiments of the present disclosure, each control device may be various types of integrated circuit chips having processing functionality, which may have various computing architectures, such as a Complex Instruction Set Computer (CISC) architecture, a Reduced Instruction Set Computer (RISC) architecture, or an architecture that implements a combination of instruction sets. In some embodiments, the control device may be a microprocessor, such as an X86 processor or an ARM processor, or may be a Digital Signal Processor (DSP), or the like. The embodiments of the present disclosure do not limit the specific type of the control device.

The following points need to be explained:

(1) the drawings of the embodiments of the disclosure only relate to the structures related to the embodiments of the disclosure, and other structures can refer to the common design.

(2) For purposes of clarity, the thickness of layers or regions in the figures used to describe embodiments of the present disclosure are exaggerated or reduced, i.e., the figures are not drawn on a true scale.

(3) Without conflict, embodiments of the present disclosure and features of the embodiments may be combined with each other to arrive at new embodiments.

The above is only a specific embodiment of the present disclosure, but the scope of the present disclosure is not limited thereto, and the scope of the present disclosure should be determined by the scope of the claims.