A hot press outlet plate surface spraying and humidifying device

Abstract

The present invention relates to the technical field of artificial board processing, and specifically discloses a hot press outlet board surface spraying and humidifying device, comprising a roller conveyor device, an infrared imager is arranged above the roller conveyor device, the infrared imager is electrically connected to a control cabinet, a spray device is arranged downstream of the infrared imager, and the spray device comprises a baffle arranged parallel to the surface of the slab, two rows of staggered rectangular openings are opened on the baffle, a cover frame is fixed on the baffle away from the slab, a telescopic part aligned with each rectangular opening is arranged on the cover frame, and the movable end of the telescopic part is connected to a nozzle arranged toward the slab; the board surface spraying and humidifying device disclosed in the present invention can control the amount of water sprayed by the corresponding nozzle according to the temperature of each area of ​​the slab surface, and there is no cross-area in the nozzle spraying, thereby achieving precise control of the slab spraying and humidifying amount, thereby making the stress in the slab evenly released and improving the quality of the board.

Description

Technical Field

[0001] The invention relates to the technical field of artificial board processing, and particularly discloses a board surface spraying and humidifying device at a hot press outlet. Background Art

[0002] During the production and processing of artificial boards, due to the high surface hardness of the boards produced by MDI glue, the temperature of the board surface is high after the raw board leaves the press, which can easily cause the saw blade to become blunt quickly during customer use. Due to the high hardness of the board surface, it is easy to produce edge chipping when cutting. At the same time, the board will be deformed due to uneven heat dissipation and stress release.

[0003] The existing solution is to set a spray pipe at the upper and lower ends of the hot press outlet, and then install a row of nozzles on the spray pipe facing the surface of the artificial board. During the transportation process of the artificial board, the water mist sprayed by the nozzles humidifies and cools the board surface, thereby reducing the hardness of the board surface and evenly releasing the stress of the board.

[0004] For example, the invention patent application number 2015203649536 discloses a slab spraying system, which includes a distilled water storage tank connected to a pressure pump via a water pipe. The other end of the pressure pump is connected to a high-pressure atomizing nozzle main pipe via a water pipe. At the lower end of the high-pressure atomizing nozzle main pipe, there are several high-pressure atomizing nozzles connected to it and arranged at equal distances. Although this slab spraying system can perform online spray humidification on the slabs sent out from the press, the temperature of different areas of the slabs is not consistent when the slabs are sent out from the hot press. The spraying system cannot adjust the spray humidification degree according to the surface temperature of the slab, resulting in uneven stress release due to spray cooling in different areas of the slab surface, which in turn affects the quality of the slab. In addition, each nozzle is connected to an independent water supply system, and although the spray water volume is controlled by controlling the flow rate corresponding to each water supply system, there will be an intersection between the spray areas of two adjacent nozzles, resulting in excessively high spray volume in the intersection area, making it impossible to achieve precise control. Based on the above-mentioned deficiencies of the existing slab spraying system, this application proposes a slab surface spraying and humidifying device that can actively detect the surface temperature of the slabs sent out of the press, and then adjust the spraying and humidifying amount of the corresponding area according to the temperature distribution of each area. Summary of the Invention

[0005] The present invention aims to provide a plate surface spraying and humidifying device at the outlet of a hot press, so as to realize active temperature detection of the surface of the plate sent out from the press, and then adjust the spraying and humidifying amount of the corresponding area according to the temperature distribution of each area.

[0006] The present invention is achieved through the following technical solutions:

[0007] A hot press outlet plate surface spraying and humidifying device includes a roller conveyor for conveying slabs, an infrared imager for detecting the surface temperature of the slabs is arranged above the roller conveyor, the infrared imager is electrically connected to a control cabinet, and a spraying device is arranged on the roller conveyor downstream of the infrared imager;

[0008] In which, the spraying device includes a baffle arranged parallel to the surface of the slab, and two rows of staggered rectangular openings are opened on the baffle, and the side ends of the two adjacent staggered rectangular openings are on the same straight line in the conveying direction of the slab. A cover frame is fixed on the baffle away from the slab, and a telescopic part is provided on the cover frame to align with each rectangular opening. The movable end of the telescopic part is connected to a nozzle arranged toward the slab, and all the nozzles are connected to a water pipe through a pipeline, and the water pipe is connected to a water source through a liquid pump.

[0009] During operation, the hot press outlet plate surface spraying and humidifying device disclosed in the present invention is used to receive the slab sent out from the hot press through a roller conveyor device, and then the surface temperature of the slab is detected by an infrared imager. At the same time, the detected information is fed back to the control processing module inside the control cabinet for analysis, and the temperature of each area of ​​the slab along the width direction of the slab is determined, and then a signal for controlling the corresponding telescopic parts is automatically generated based on the obtained temperature data.

[0010] When the slab is conveyed directly below the spraying device, the nozzle is moved up and down by a telescopic member to adjust the distance between it and the baffle. The specific up and down movement distance is accurately measured in real time by a distance sensor. During the spraying process, the nozzle's spray angle remains unchanged. As the distance between the nozzle and the baffle is adjusted, the amount of water sprayed from the nozzle through the rectangular opening can be changed, thereby adjusting the humidification level of the corresponding area of ​​the slab. At the same time, the design of two rows of nozzles and two rows of rectangular openings prevents the water sprayed by adjacent nozzles from intersecting. This ensures that the corresponding amount of water is sprayed along the width of the slab during transportation for humidification and cooling, thereby improving the uniformity of stress release on the slab surface.

[0011] As a further configuration of the above solution, the movable end of the telescopic member is connected to a moving block, a guide rail matching the moving block is provided on the side wall of the cover frame, and the nozzle is fixedly mounted on the moving block.

[0012] As a further configuration of the above solution, the cover frame includes a top plate and side plates connected to both ends of the top plate, the telescopic member is arranged on the top plate, and the nozzle is arranged to move up and down along the guide rails on the side plates.

[0013] As a further configuration of the above solution, a distance measuring sensor is provided on the moving block, and the distance measuring sensor is arranged vertically toward the top plate and is electrically connected to the control cabinet.

[0014] As a further arrangement of the above scheme, a number of baffles parallel to the slab conveying direction are arranged at equal intervals on the baffle plate, the rectangular openings are arranged between two corresponding baffles, and the ends of the rectangular openings perpendicular to the baffles are provided with inclined guide strips.

[0015] As a further configuration of the above solution, the lower surfaces of both ends of the baffle are connected to guide grooves, and collecting grooves are provided below both ends of the guide grooves.

[0016] The above-mentioned design of the retaining edge, inclined guide strip, guide groove and collecting groove can isolate and divert the water trapped on the baffle during the spraying process, and discharge the entire device in a centralized manner. At the same time, it can also prevent the water on the upper surface of the baffle from flowing to the rectangular opening and dripping onto the surface of the slab, thereby ensuring precise control of the humidification amount of the slab surface.

[0017] As a further configuration of the above solution, a machine base is also included, the collecting trough is fixed to two side surfaces of the machine base, and the control cabinet is arranged on the machine base.

[0018] As a further configuration of the above solution, the water delivery pipe is arranged along the center line of the cover frame, and each of the nozzles is connected to the water delivery pipe through a telescopic intermediate pipe and a connecting pipe.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The plate surface spray humidification device disclosed in the present invention can control the amount of water sprayed by the corresponding nozzle according to the temperature of each area on the surface of the slab, thereby achieving precise control of the spray humidification amount of the slab, thereby evenly releasing the stress in the slab and improving the quality of the plate.

[0021] The plate surface spray humidification device in the present invention adopts a baffle, a rectangular opening and a nozzle movement adjustment method to control the humidification amount of the spray water passing through the rectangular opening and sprayed on the plate surface. Compared with the method of independently connecting a single nozzle to a water supply system to adjust the spraying amount, it is not only simpler in structure, but also there is no intersection area between the water sprayed by two adjacent nozzles during the spraying process. It can ensure that the slab can be sprayed with a corresponding amount of water along its width direction for humidification and cooling during the transportation process, further improving the uniformity of stress release on the slab surface.

[0022] The present invention further prevents the water blocked by the baffle from dripping onto the surface of the slab through the rectangular opening through the design of the baffle edge, inclined guide strips, guide grooves and collecting grooves, so that the blocked water can flow out of the entire device along a set path, avoiding the dripping water from affecting the stress release of the slab surface, thereby ensuring the quality of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a first angle;

[0025] Figure 2 This is a schematic diagram of the three-dimensional structure from a second angle of the present invention;

[0026] Figure 3 This is a schematic diagram of the three-dimensional structure of the spray device of the present invention from a first angle;

[0027] Figure 4 This is a schematic diagram of the three-dimensional structure of the spray device of the present invention from a second angle;

[0028] Figure 5 This is a schematic diagram of the three-dimensional structure of the water pipe, moving block, cylinder, etc. in the present invention;

[0029] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at A in the middle;

[0030] Figure 7 Schematic diagram of the nozzle spraying on the slab surface at different heights in the present invention. DETAILED DESCRIPTION

[0031] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Figures 1 to 7 , and describes the application in detail with reference to embodiments. Example 1

[0033] Example 1 discloses a hot press outlet plate surface spray humidification device, refer to the attached Figure 1 and attached Figure 2The hot press comprises a machine base 1 connected to the hot press outlet. A control cabinet 2 is located on the front side of the machine base 1, and the corresponding control and processing modules are housed within the control cabinet 2. A roller conveyor 3 is located on the upper surface of the machine base 1. This roller conveyor 3 consists of a roller base and a row of conveyor rollers, which ensure that the slabs discharged from the hot press can be stably conveyed along the conveyor rollers. An infrared imager 4 is located directly above and centered on the roller conveyor 3 near one end of the hot press (i.e., the right end). This infrared imager 4 is electrically connected to the control cabinet 2 and can measure the temperature of various areas on the surface of the slabs discharged from the hot press.

[0034] A spray device 5 is provided on the upper end of the roller conveyor 3 on the left side of the infrared imager 4. Figure 3 To the attached Figure 6 The spraying device 5 includes a horizontal baffle 501, with the distance between the baffle 501 and the slab surface set between 2-5 cm. Two rows of staggered rectangular openings 502 are formed on the baffle 501, with the ends of two adjacent staggered rectangular openings 502 aligned in the slab conveying direction. That is, when the two rows of rectangular openings 502 are arranged in a row, all the rectangular openings 502 form a long opening perpendicular to the slab conveying direction.

[0035] A top plate 503 is provided above the baffle 501. Side plates 504 extending vertically downward are connected to both sides of the top plate 503. A water pipe 505 is provided along the centerline of the top plate 503. One end of the water pipe 505 is sealed, and the other end is provided with a liquid pump 506, which is connected to a water source via a pipeline. A movable block 507 is provided directly above the center of each rectangular opening 502. Guide rails 508 corresponding to the movable blocks 507 are provided on the side plates 504, and the movable blocks 507 are then slidably connected to the corresponding guide rails 508. Simultaneously, a cylinder 509 is also provided on the baffle 501, aligned with each movable block 507. The cylinder 509 can be replaced by other telescopic members that can be telescoped at a fixed distance. The lower end of the piston rod of the cylinder 509 is connected to the corresponding movable block 507, so that the movable block can move up and down along the guide rails 508 under the action of the cylinder 509. To detect the vertical position of the moving block 507 in real time, a distance sensor 510 is provided on the side of each moving block 507, and each distance sensor 510 is electrically connected to the control cabinet 2. Specifically, the distance sensor 510 can be a laser distance sensor, which is positioned vertically toward the top plate 503. As the moving block 507 moves up and down, the laser distance sensor can detect the vertical position of the moving block 507 in real time.

[0036] Each movable block 507 is fixedly mounted with a downwardly facing nozzle 511, whose spray angle can be manually adjusted between 30 and 60 degrees. A telescopic intermediate tube 512 is connected to the upper end of each nozzle 511, and a connecting tube 513 is provided at the upper end of the telescopic intermediate tube 512, which is connected to the water pipe 505.

[0037] Finally, it should be noted that in this embodiment, the infrared imager 4 and the spray device 5 can be set up into two upper and lower parts according to needs, and are set up in a mirror-symmetrical manner with the slab on the roller conveyor 3 as the symmetry plane, so that the upper and lower surfaces of the slab can be simultaneously temperature detected and sprayed for humidification.

[0038] During the operation of the spray humidification device disclosed in this embodiment 1, after the slab is sent out from the hot press, the surface of the slab is monitored as a whole by the infrared imager 4, and the control processing module in the control cabinet 2 analyzes and obtains the temperature values ​​of each area of ​​the slab surface equally divided along its width direction during the online transportation process, and then automatically generates the corresponding expansion and contraction adjustment amount of the corresponding cylinder 509 during the subsequent operation process based on the measured temperature value.

[0039] When the slab enters the spraying device 5, the liquid pump 506 is first activated to increase the flow rate. Since all nozzles are connected to the water pipe 505, the water pressure during the spraying process of all nozzles 511 is the same, that is, the water flow rate of the nozzles 511 is consistent. At this time, the cylinder 509 will expand and contract according to the control signal of the control cabinet 2, thereby causing the movable block 507 to move up and down. The distance sensor 510 measures the expansion and contraction of the cylinder 509 to stop. When the movable block 507 is in a higher position, the amount of liquid sprayed by the nozzle 511 and passing through the corresponding rectangular opening 502 is smaller; conversely, when the movable block 507 is in a lower position, the amount of liquid sprayed by the nozzle 511 and passing through the corresponding rectangular opening 502 is larger, thereby adjusting the spray humidification amount of the slab surface in that area. In addition, due to the design of two rows of nozzles and two rows of rectangular openings 502, there is no intersection area between the water sprayed by two adjacent nozzles 511, and it can be ensured that the slab can be sprayed with a corresponding amount of water along its width direction for humidification and cooling during transportation, thereby improving the uniformity of stress release on the slab surface. Example 2

[0040] Example 2 discloses a hot press outlet plate surface spraying and humidifying device that is improved based on the technical solution in Example 1. The similarities with Example 1 are not described again. The differences are shown in the attached figure. Figure 1 and attached Figure 3 .

[0041] In this embodiment 2, a plurality of baffles 5011 are evenly spaced and arranged parallel to the slab conveying direction on the upper surface of the baffle 501. Each rectangular opening 502 is located between two corresponding baffles 5011. Furthermore, inclined guide strips 5012 are provided on the upper surface of the ends of the rectangular openings 502 perpendicular to the baffles 5011. The design of the baffles 5011 and guide strips 5012 allows water that does not pass through the rectangular openings 502 to flow toward both ends along the channel between the two baffles 5011.

[0042] Finally, guide grooves 514 are connected to the lower surfaces of the left and right ends of the baffle 501, and collection grooves 6 are provided on the front and rear surfaces of the base 1, aligned vertically with the guide grooves 514. The design of the guide grooves 514 can collect water flowing down from the baffle 501 and then discharge it from the front and rear ends of the guide grooves 514 into the collection grooves 6 for collection, preventing the intercepted water from dripping onto the surface of the slab.

[0043] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hot press outlet plate surface spraying and humidifying device, comprising a roller conveyor device for conveying slabs, characterized in that: An infrared imager for detecting the surface temperature of the slab is provided above the roller conveyor device, the infrared imager is electrically connected to a control cabinet, and a spray device is provided on the roller conveyor device downstream of the infrared imager; In which, the spraying device includes a baffle arranged parallel to the surface of the slab, and two rows of staggered rectangular openings are opened on the baffle, and the side ends of the two adjacent staggered rectangular openings are on the same straight line in the conveying direction of the slab. A cover frame is fixed on the baffle away from the slab, and a telescopic part is provided on the cover frame to align with each rectangular opening. The movable end of the telescopic part is connected to a nozzle arranged toward the slab, and all the nozzles are connected to a water pipe through a pipeline, and the water pipe is connected to a water source through a liquid pump.

2. The hot press outlet plate spray humidification device according to claim 1, characterized in that: The movable end of the telescopic member is connected with a moving block, the side wall of the cover frame is provided with a guide rail matched with the moving block, and the nozzle is fixedly mounted on the moving block.

3. The hot press outlet plate spray humidification device according to claim 2, characterized in that: The cover frame includes a top plate and side plates connected to both ends of the top plate. The telescopic member is arranged on the top plate, and the spray head is arranged to move up and down along the guide rails on the side plates.

4. The hot press outlet plate spray humidification device according to claim 2, characterized in that: The moving block is provided with a distance measuring sensor, which is arranged vertically toward the top plate and is electrically connected to the control cabinet.

5. The hot press outlet plate spray humidification device according to claim 1, characterized in that: The baffle is provided with a number of baffle edges parallel to the slab conveying direction at equal intervals, the rectangular openings are each provided between two corresponding baffle edges, and the ends of the rectangular openings perpendicular to the baffle edges are provided with inclined guide strips.

6. The hot press outlet plate spray humidifying device according to claim 5, characterized in that: The lower surfaces of both ends of the baffle are connected with guide grooves, and collecting grooves are arranged below both ends of the guide grooves.

7. The hot press outlet plate spraying and humidifying device according to claim 6, characterized in that: It also includes a machine base, the collecting trough is fixed to two side surfaces of the machine base, and the control cabinet is arranged on the machine base.

8. The hot press outlet plate spraying and humidifying device according to claim 1, characterized in that: The water delivery pipe is arranged along the center line of the cover frame, and each of the nozzles is connected to the water delivery pipe through a telescopic intermediate pipe and a connecting pipe.

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