Thickness detection system for high-density board production line

Abstract

The utility model discloses a thickness detection system for a high-density board production line, which comprises a board blank thickness detection mechanism arranged on a board blank conveyor and a density board thickness detection mechanism arranged between a longitudinal edge sawing machine and a density board conveyor, and the board blank thickness detection mechanism comprises a portal frame arranged on a conveying frame of the board blank conveyor. A first laser distance measuring sensor is arranged on the portal frame. The density board thickness detection mechanism comprises a density board supporting platform fixedly arranged on the thickness measurement support. The thickness measuring support is located above the density board supporting platform and is provided with a pressing wheel support in a sliding mode, the pressing wheel support is rotationally connected with a thickness measuring pressing wheel, and the thickness measuring pressing wheel abuts against the density board supporting platform. A laser distance measuring sensor II is arranged on the supporting cross beam II and is positioned right above the pressing wheel bracket; the device has the advantages that the thickness of a plate blank and the thickness condition of a high-density plate can be seen on site, so that production line personnel can conveniently and quickly regulate and control equipment, machined products meet the standard, the production efficiency and the product quality are improved, and the like.

Description

Technical Field

[0001] This utility model relates to the field of MDF processing technology, specifically a thickness detection system for a high-density fiberboard production line. Background Technology

[0002] High-density fiberboard (HDF), with its excellent physical properties, is widely used in interior and exterior decoration, high-end car interior trim, wall panels, security doors, partitions, and other fields. HDF is produced using wood fibers or other plant fibers as the main raw materials, which are processed through chipping, hot grinding, laying, hot pressing, and sawing. Specifically, a long-wire forming machine lays the hot-ground fiber pulp into a board blank, which is then hot-pressed into HDF boards using a hot pressing system. Finally, a sawing machine cuts the HDF boards into the required sizes. However, existing HDF production lines lack intuitive measurement for the thickness of the board blanks and HDF boards. The thickness of the boards produced relies entirely on the experience of the workers and measurements taken with a ruler after sampling. This leads to problems such as products not meeting thickness standards, repeated adjustments resulting in low production efficiency, poor product quality, high scrap rates, and high production costs. Utility Model Content

[0003] The technical problem this invention aims to solve is to overcome existing defects and provide a thickness detection system for a high-density fiberboard (HDF) production line. Production line personnel can observe the thickness of the slab and HDF on-site, facilitating rapid equipment adjustment to ensure processed products meet standards, improve production efficiency and product quality, reduce scrap rates, and lower production costs. This system can measure the thickness of slabs and HDF of varying thicknesses, offering flexibility, convenience, and high accuracy, effectively addressing the problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a thickness detection system for a high-density fiberboard (HDF) production line, comprising a long-wire forming machine, a slab conveyor, a hot pressing system, a longitudinal edge-sawing machine, and an HDF conveyor arranged sequentially. The slab conveyor is equipped with a slab thickness detection mechanism, which includes a gantry frame mounted on the conveyor frame of the slab conveyor. A vertically downward-facing support rod is fixed to the top beam of the gantry frame, and a laser rangefinder sensor is fixed to the end of the support rod. The HDF thickness detection mechanism is located between the longitudinal edge-sawing machine and the HDF conveyor. The device includes a thickness measuring bracket, on which a first supporting beam is fixedly mounted, and on which a density board support platform is fixedly mounted. Above the density board support platform, the thickness measuring bracket also has a second supporting beam, on which a vertically arranged linear slide rail is fixedly mounted. A sliding plate slides along the linear slide rail, and a pressure roller bracket is fixedly mounted on the sliding plate. A thickness measuring pressure roller is connected to the pressure roller bracket via a rotating shaft, and the thickness measuring pressure roller abuts against the density board support platform. Above the linear slide rail, the second supporting beam has a fixed plate, and directly above the pressure roller bracket, a second laser rangefinder sensor is mounted on the fixed plate.

[0005] Furthermore, the MDF support platform includes a flat plate bracket, with a supporting plate at the top of the flat plate bracket and a thickness measuring roller abutting against the supporting plate. The bottom of the flat plate bracket is provided with a connecting base plate connected to the supporting crossbeam.

[0006] Furthermore, the connecting base plate is fixedly connected to the supporting crossbeam 1 via a connecting assembly. The connecting assembly includes multiple long bolts threaded onto the supporting crossbeam 1, and all the long bolts penetrate the supporting crossbeam 1 and the connecting base plate. Adjusting nuts 1 are threaded onto the upper and lower surfaces of the supporting crossbeam 1 on the long bolts, and adjusting nuts 1 are also threaded onto the upper and lower surfaces of the connecting base plate on the long bolts.

[0007] Furthermore, the gantry frame is equipped with a digital display for displaying the measurement values ​​of the first laser rangefinder sensor, and the thickness measuring bracket is equipped with a digital display for displaying the measurement values ​​of the second laser rangefinder sensor.

[0008] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-density fiberboard (HDF) production line thickness detection system measures the thickness of the slab produced by the long-wire forming machine through a slab thickness detection mechanism installed on the slab conveyor, and measures the thickness of the HDF produced by the hot-pressing system through a MDF thickness detection mechanism installed between the longitudinal sawing machine and the HDF conveyor. The thickness values ​​of the slab and the HDF are displayed on digital display panel one and digital display panel two, respectively. Production line personnel can see the thickness of the slab and the HDF on-site, which allows them to quickly adjust the long-wire forming machine and the hot-pressing system to ensure that the processed products meet the standards, improve production efficiency and product quality, reduce scrap rate, lower production costs, and achieve high thickness measurement efficiency. The MDF thickness detection mechanism can perform high-precision measurement of HDF of different thicknesses, and the measurement position height of the MDF thickness detection mechanism is adjustable, making it flexible and convenient to use. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model;

[0010] Figure 2 This is a schematic diagram of the slab thickness detection mechanism of this utility model;

[0011] Figure 3 This is a schematic diagram of the structure of the density board thickness detection mechanism of this utility model;

[0012] Figure 4 This is a side view of the density board thickness detection mechanism of this utility model;

[0013] Figure 5 This is a partial enlarged view of the thickness measuring roller of the density board thickness detection mechanism of this utility model;

[0014] Figure 6 This is a partial enlarged view of the density board support platform of the density board thickness detection mechanism of this utility model.

[0015] In the diagram: 1. Long-wire forming machine; 2. Slab conveyor; 3. Hot pressing system; 4. Longitudinal edge saw; 5. MDF conveyor; 6. Slab thickness detection mechanism; 61. Gantry frame; 62. Laser rangefinder sensor one; 63. Support rod; 64. Digital display one; 7. MDF thickness detection mechanism; 71. Thickness measuring bracket; 72. Support beam one; 73. Connecting assembly; 731. Long bolt; 732. Adjusting nut one; 74. MDF support platform; 741. Flat plate bracket; 742. Supporting flat plate; 743. Connecting base plate; 75. Support beam two; 76. Linear slide rail; 77. Sliding plate; 78. Pressure roller bracket; 79. Thickness measuring pressure roller; 710. Fixed plate; 711. Laser rangefinder sensor two; 712. Digital display two. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0017] Please see Figure 1-6 This utility model provides a technical solution: a thickness detection system for a high-density board production line, comprising a long wire forming machine 1, a slab conveyor 2, a hot pressing system 3, a longitudinal edge sawing machine 4, and a density board conveyor 5 arranged in sequence;

[0018] The slab conveyor 2 is equipped with a slab thickness detection mechanism 6. The slab thickness detection mechanism 6 includes a gantry frame 61 on the conveying frame of the slab conveyor 2. A vertically downward support rod 63 is fixed on the top beam of the gantry frame 61. A laser rangefinder sensor 62 is fixed at the end of the support rod 63.

[0019] A density board thickness detection mechanism 7 is provided between the longitudinal edge sawing machine 4 and the density board conveyor 5. The density board thickness detection mechanism 7 includes a thickness measuring bracket 71, a supporting beam 72 is fixedly mounted on the thickness measuring bracket 71, and a density board support platform 74 is fixedly mounted on the supporting beam 72. The density board support platform 74 includes a flat plate bracket 741, a supporting plate 742 is provided at the top of the flat plate bracket 741, the top surface of the supporting plate 742 is flush with the top surface of the cutting platform of the longitudinal edge sawing machine 4, and a connecting base plate 743 is provided at the bottom of the flat plate bracket 741, which is connected to the supporting beam 72.

[0020] The thickness measuring bracket 71 is located above the MDF support platform 74 and is further provided with a second support beam 75. A vertically arranged linear slide rail 76 is fixed on the second support beam 75. A sliding plate 77 is slidably mounted on the linear slide rail 76. A pressure roller bracket 78 is fixed on the sliding plate 77. A thickness measuring pressure roller 79 is connected to the pressure roller bracket 78 via a rotating shaft, and the thickness measuring pressure roller 79 abuts against the support plate 742. A fixing plate 710 is fixed above the second support beam 75 and is located above the linear slide rail 76. A second laser range sensor 711 is mounted on the fixing plate 710 directly above the pressure roller bracket 78.

[0021] The gantry frame 61 is equipped with a digital display 64 for displaying the measurement values ​​of the laser rangefinder 62, and the thickness measuring bracket 71 is equipped with a digital display 712 for displaying the measurement values ​​of the laser rangefinder 711.

[0022] Working principle:

[0023] During the processing of high-density fiberboard, the slab blanks formed by the long-wire forming machine 1 are conveyed to the hot pressing system 3 by the slab conveyor 2. The thickness of the slab blank is detected by the laser rangefinder 62 installed on the gantry 61. The thickness value of the slab blank measured by the laser rangefinder 62 is displayed on the digital display 64. Production line personnel can see the thickness of the slab blank on site, so that they can quickly adjust the gap of the press rollers in the long-wire forming machine 1 to ensure that the slab blanks processed by the long-wire forming machine 1 meet the process standards.

[0024] After the hot pressing system 3 hot-presses the slab into shape, the high-density board is sawed by the longitudinal sawing machine 4. When the high-density board passes the support plate 742, it will lift the thickness measuring roller 79. The thickness measuring roller 79 drives the roller support 78 and the sliding plate 77 to slide upward along the linear slide rail 76. The thickness of the high-density board is measured by detecting the displacement of the roller support 78 through the laser range sensor 711. The thickness value of the high-density board measured by the laser range sensor 711 is displayed on the digital display 712. The production line personnel can see the thickness of the high-density board on site, so that the production line personnel can quickly adjust the hot pressing conditions of the hot pressing system 3 to ensure that the slab processed by the hot pressing system 3 meets the process standards.

[0025] Furthermore, the connecting base plate 743 is fixedly connected to the supporting crossbeam 72 via a connecting assembly 73. The connecting assembly 73 includes multiple long bolts 731 threaded onto the supporting crossbeam 72, and all long bolts 731 penetrate the supporting crossbeam 72 and the connecting base plate 743. Adjusting nuts 732 are threaded onto both the upper and lower surfaces of the supporting crossbeam 72 on the long bolts 731, and also threaded onto the upper and lower surfaces of the connecting base plate 743 on the long bolts 731. The position and height of the connecting base plate 743 can be adjusted by turning the adjusting nuts 732, that is, the position and height of the supporting plate 742, to accommodate longitudinal edge sawing machines 4 of different heights. The MDF thickness detection mechanism 7 is flexible and convenient to use.

[0026] The high-density fiberboard (HDF) production line thickness detection system disclosed in this embodiment measures the thickness of the slab produced by the long-wire forming machine 1 through a slab thickness detection mechanism 6 installed on the slab conveyor 2, and measures the thickness of the HDF produced by the hot-pressing system 3 through a MDF thickness detection mechanism 7 installed between the longitudinal edge sawing machine 4 and the HDF conveyor 5. The thickness values ​​of the slab and the HDF are displayed on digital display 64 and digital display 712, respectively. Production line personnel can see the thickness of the slab and the HDF on-site, which allows them to quickly adjust the long-wire forming machine 1 and the hot-pressing system 3 to ensure that the processed products meet standards, improve product quality, reduce scrap rate, and lower production costs. The MDF thickness detection mechanism 7 can perform high-precision measurement of HDF of different thicknesses, and the measurement position height of the MDF thickness detection mechanism 7 is adjustable, making it flexible and convenient to use.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thickness detection system for a high-density fiberboard (HDF) production line, comprising a long-wire forming machine, a slab conveyor, a hot pressing system, a longitudinal edge sawing machine, and an HDF conveyor arranged sequentially, characterized in that: The slab conveyor is equipped with a slab thickness detection mechanism, which includes a gantry frame on the conveyor frame of the slab conveyor. A vertically downward support rod is fixed on the top beam of the gantry frame, and a laser rangefinder sensor is fixed at the end of the support rod. A density board thickness detection mechanism is provided between the longitudinal sawing machine and the density board conveyor. The density board thickness detection mechanism includes a thickness measuring bracket, a support beam is fixed on the thickness measuring bracket, and a density board support platform is fixed on the support beam. Above the density board support platform, the thickness measuring bracket is also equipped with a second support beam. A vertically arranged linear slide rail is fixed on the second support beam, and a sliding plate slides on the linear slide rail. A pressure roller bracket is fixed on the sliding plate, and a thickness measuring pressure roller is connected to the pressure roller bracket via a rotating shaft. The thickness measuring pressure roller abuts against the density board support platform. Above the linear slide rail, the second support beam is equipped with a fixed plate, and a laser rangefinder sensor is fixed on the fixed plate directly above the pressure roller bracket.

2. The thickness detection system for a high-density fiberboard production line according to claim 1, characterized in that: The MDF support platform includes a flat plate bracket, with a supporting plate at the top of the flat plate bracket and a thickness measuring roller abutting against the supporting plate. The bottom of the flat plate bracket is provided with a connecting base plate that is connected to the supporting crossbeam.

3. The thickness detection system for a high-density fiberboard production line according to claim 2, characterized in that: The connecting base plate is fixedly connected to the supporting crossbeam 1 via a connecting assembly. The connecting assembly includes multiple long bolts threaded onto the supporting crossbeam 1, and all the long bolts penetrate the supporting crossbeam 1 and the connecting base plate. Adjusting nuts 1 are threaded onto the upper and lower surfaces of the supporting crossbeam 1 on the long bolts, and adjusting nuts 1 are also threaded onto the upper and lower surfaces of the connecting base plate on the long bolts.

4. The thickness detection system for a high-density fiberboard production line according to claim 1, characterized in that: The gantry frame is equipped with a digital display for displaying the measurement values ​​of the first laser rangefinder sensor, and the thickness measuring bracket is equipped with a digital display for displaying the measurement values ​​of the second laser rangefinder sensor.

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