Bamboo furniture jointed board hot-pressing bonding processing system

Abstract

The invention provides a bamboo-wood furniture jointed board hot-pressing bonding processing system which comprises a processing table provided with a splicing station and a feeding end. The gluing conveying mechanism is used for conveying a plurality of plates to the feeding end one by one and coating the to-be-spliced side face of each plate with an adhesive in the conveying process; the splicing bearing mechanism is arranged in the splicing station in a lifting manner and is provided with a conveying position and an avoiding position; the plate aligning mechanism comprises a positioning piece and an elastic aligning assembly; the lateral pressurizing mechanism is arranged on one side of the splicing station in the plate splicing direction; and the hot pressing mechanism is arranged above the splicing station and is used for synchronously applying downward pressure and heat to the plurality of plates after the lateral pressurizing mechanism applies the clamping force so as to solidify the adhesive to form an integral spliced plate. According to the device, the integrated automatic processes of continuous gluing, end face alignment, bidirectional heating and the like of the plates can be achieved, and the machining efficiency and quality are effectively improved.

Description

Technical Field

[0001] This invention relates to the field of furniture board processing technology, and in particular to a hot-press bonding system for bamboo and wood furniture panels. Background Technology

[0002] In the furniture production process, splicing solid wood or bamboo panels is a common core processing step. The core of this step is to use a hot pressing mechanism to bond multiple narrow panels together with adhesive, thereby expanding the panel size. The quality of this splicing process directly determines the structural strength, dimensional accuracy, and appearance quality of the finished furniture, making it a key factor affecting the quality of furniture products.

[0003] Currently, the hot-pressing process for splicing boards used in the furniture industry is primarily manual, with the entire process relying on multiple manual interventions. Specifically: First, workers move the boards to be spliced ​​to the gluing station and apply the splicing adhesive manually using a brush or glue gun. Then, workers stack multiple boards on the hot-pressing platform and manually adjust the spatial position of the boards to ensure that the splicing surfaces of adjacent boards are tightly fitted and that the front and back ends of the boards are completely flush. Next, clamps are used to apply lateral pressure to the boards, and the hot press is started for high-temperature and high-pressure hot-pressing curing, allowing the adhesive to cross-link and form. After hot pressing is completed, workers release the clamps and unload the spliced ​​board, thus completing the entire splicing process for a single board.

[0004] However, in practical applications, the above-mentioned process has the following problems: First, each process requires multiple people to complete, resulting in high labor costs, high labor intensity, and a long processing cycle for a single board, making continuous and automated production impossible and leading to low production efficiency. Second, the manual gluing process cannot control the gluing, easily resulting in uneven thickness and missed areas, affecting the splicing strength and causing quality problems such as delamination and cracking during later use. Third, the manual alignment process relies entirely on the operator's experience, lacking standardized position calibration criteria, easily leading to deviations such as misaligned joints and uneven ends, requiring additional adjustments, which not only lengthens the production process but also wastes a large amount of board material, significantly increasing production costs. Therefore, there is an urgent need to develop a new type of hot-press bonding processing system for bamboo and wood furniture splicing. Summary of the Invention

[0005] Based on this, the purpose of the present invention is to provide a hot-press bonding system for bamboo and wood furniture panels, which aims to solve at least one of the technical problems mentioned in the background art.

[0006] The purpose of this invention is to provide a hot-press bonding system for bamboo and wood furniture panels, comprising: The processing table is equipped with a splicing station for accommodating and splicing multiple plates, and a feeding end located on one side of the splicing station. The adhesive conveying mechanism is used to convey multiple boards one by one to the feeding end, and to apply adhesive to the side of each board to be spliced ​​during the conveying process. The splicing support mechanism is vertically mounted within the splicing station and has a conveying position and a clearance position. When the splicing support mechanism rises to the conveying position, it is used to receive the glued board material from the glue conveying mechanism and convey it along the splicing direction to arrange it inside the splicing station. The plate alignment mechanism includes a positioning component detachably disposed at one end of the splicing station, and two elastic alignment components disposed on both sides of the plate splicing direction. The positioning component is used to position the first plate, and the elastic alignment components are used to align the end faces of multiple plates during the hot pressing process. A lateral pressure mechanism is located on one side of the splicing station along the splicing direction of the panels. It is used to apply a clamping force along the splicing direction to multiple panels arranged in the splicing station, so that the splicing surfaces of two adjacent panels fit tightly together. The hot pressing mechanism, located above the splicing station, is used to simultaneously apply downward pressure and heat to multiple panels after the clamping force is applied by the lateral pressing mechanism, so as to cure the adhesive and form an integral splice.

[0007] In addition, the bamboo and wood furniture panel hot-press bonding processing system according to the present invention may also have the following additional technical features: Furthermore, the adhesive dispensing and conveying mechanism includes: The first conveying assembly includes an input platform and a first conveyor belt disposed on the input platform. The output end of the input platform is connected to the feed end, and the conveying direction of the first conveyor belt is perpendicular to the splicing direction of the sheet metal. Multiple adhesive application assemblies are spaced apart on the input platform along the conveying direction of the first conveyor belt. Each adhesive application assembly includes a mounting rod, an adhesive application roller rotatably disposed at the end of the mounting rod, an adsorption coating layer sleeved on the adhesive application roller, and an adhesive supply component for supplying adhesive to the adsorption coating layer. The adsorption coating layer is used for rolling contact with the side of the board to be spliced. The adhesive supply component is connected to an adhesive storage tank through a connecting pipe. The input station is also equipped with a collection tank located below the adhesive application assembly, which is used to collect dripping adhesive.

[0008] Furthermore, the adhesive conveying mechanism also includes a lateral positioning component for laterally limiting the board material during the adhesive application process. The lateral positioning component includes at least one support roller and an elastic support frame. The support roller is connected to the input platform through the elastic support frame, and the support roller is used to roll into contact with the non-jointed side of the board material.

[0009] Furthermore, the elastic alignment assembly includes an alignment guide and an elastic connection between the alignment guide and the processing table, the elastic connection being used to apply an elastic restoring force toward the plate to the alignment guide.

[0010] Furthermore, the splicing station includes a splicing groove on the processing table and a clearance groove communicating with the splicing groove. When the splicing support mechanism descends to the clearance position, the splicing support mechanism is located in the clearance groove.

[0011] Furthermore, the splicing support mechanism includes a frame, a second conveyor belt disposed at the top of the frame, and a plurality of first lifting drive components spaced apart at the bottom of the frame. The conveying direction of the second conveyor belt is parallel to the splicing direction of the panels. The first lifting drive components are used to drive the frame and the second conveyor belt to rise or fall.

[0012] Furthermore, the lateral pressurization mechanism includes a pressurizing component and a pressurization drive component connected between the pressurizing component and the processing table. The pressurizing component is located at one end of the splicing station opposite to the positioning component. The pressurizing component is driven by the pressurization drive component to move towards the positioning component, so as to apply lateral pressure to multiple plates arranged in the splicing station along the splicing direction of the plates.

[0013] Furthermore, the hot pressing mechanism includes a fixed frame, a hot pressing component, and a second lifting drive component connecting the fixed frame and the hot pressing component. The fixed frame is fixed on the processing table, and the hot pressing component is located above the splicing station. The hot pressing component is driven to move downward by the second lifting drive component to realize the hot pressing operation of the hot pressing component on multiple plates arranged in the splicing station.

[0014] Furthermore, it also includes an auxiliary heating mechanism, which includes a plurality of heating components spaced apart within the splicing station. Each heating component includes a pad and a heating element disposed on top of the pad. The upper surface of the heating element is flush with the bottom surface of the elastic alignment component.

[0015] Furthermore, it also includes an output platform, which is fixed to the discharge end of the processing table.

[0016] Compared to existing technologies, the advantages of this invention are as follows: By setting up an adhesive conveying mechanism, automatic and continuous adhesive application is completed simultaneously on the sides of the boards to be spliced ​​during the board conveying process. Furthermore, the lateral limiting component ensures that the adsorbent coating layer in the adhesive application component maintains rolling contact with the sides of the boards to be spliced, achieving uniform adhesive application without any missed or insufficient application. Simultaneously, a collection trough is provided on the input table to recover excess adhesive dripping, enabling adhesive recycling and reuse. Further, by setting up a board alignment mechanism, automatic alignment of the end faces of multiple boards is achieved. During use, no additional drive mechanism is required; the downward pressure of the hot pressing mechanism alone is sufficient to drive the boards to slide along the guide surface of the alignment guide, automatically achieving horizontal alignment of the two ends of multiple boards along their length direction. This solves the problems of repeated adjustments, time-consuming processes, and poor accuracy associated with manual alignment. Furthermore, by setting up an auxiliary heating mechanism in conjunction with the hot pressing mechanism, a bidirectional heating structure for the board is achieved. During the hot pressing process, the board is heated simultaneously from both the top and bottom sides, causing the adhesive on the splicing surface to be heated and cured at the same time. At the same time, bidirectional heating ensures uniform curing of the adhesive, completely solving the problem of uneven curing caused by single-sided heating. The bonding strength of the spliced ​​boards is significantly improved, and the water resistance and aging resistance are significantly enhanced. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the bamboo and wood furniture splicing hot pressing and bonding processing system of the present invention; Figure 2 This is a top view of the bamboo and wood furniture panel hot-press bonding processing system of the present invention; Figure 3 This is a cross-sectional structural diagram of the hot-press bonding system for bamboo and wood furniture panels according to the present invention; Figure 4 This is a structural diagram of the glue-coating and conveying mechanism in the hot-press bonding system for bamboo and wood furniture panels of the present invention.

[0018] The above-mentioned figures include the following reference numerals: 10, processing table; 101, splicing groove; 102, clearance groove; 21, input table; 211, collection groove; 22, first conveyor belt; 23, mounting rod; 24, glue roller; 25, adsorption coating layer; 26, glue supply component; 27, connecting pipeline; 28, support roller; 29, elastic support frame; 31, positioning component; 32, alignment guide part; 33, elastic connecting part; 41, frame; 42, second conveyor belt; 43, first lifting drive component; 51, pressure component; 52, pressure drive component; 61, fixing frame; 62, hot pressing component; 63, second lifting drive component; 71, pad; 72, heating component; 80, output table; 90, sheet material.

[0019] The following detailed description, in conjunction with the accompanying drawings, will further illustrate the present invention. Detailed Implementation

[0020] To facilitate understanding of the present invention, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of the invention are illustrated in the drawings. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

[0021] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] Please see Figures 1 to 4 The diagram illustrates a bamboo and wood furniture panel hot-press bonding system according to the present invention. It includes a processing table 10, an adhesive conveying mechanism, a splicing and bearing mechanism, a panel alignment mechanism, a lateral pressurizing mechanism, a hot-pressing mechanism, and an auxiliary heating mechanism. These mechanisms work together to form a fully automated processing chain from panel input, adhesive pretreatment, panel arrangement and splicing, automatic end-face alignment, pressure clamping, to bidirectional hot-press curing and automatic finished product output, effectively improving processing efficiency and quality. The processing table 10 is equipped with a splicing station for accommodating and splicing multiple panels 90, an inlet end on one side of the splicing station, and an outlet end on the other side. The inlet end of the processing table 10 is connected to the input platform 21 of the adhesive conveying mechanism, and the outlet end is bolted to the output platform 80. In this embodiment, the splicing station includes a splicing groove 101 opened on the processing table 10 and an avoidance groove 102 communicating with the splicing groove 101. The avoidance groove 102 is opened in the splicing groove 101, and the groove width of the avoidance groove 102 is smaller than the groove width of the splicing groove 101. The avoidance groove 102 is used to accommodate the splicing support mechanism.

[0024] The adhesive coating and conveying mechanism is used to transport multiple sheets 90 one by one to the feeding end, and to apply adhesive to the side of each sheet 90 to be spliced ​​during the conveying process. Specifically, the adhesive coating and conveying mechanism includes a first conveying component, multiple adhesive coating components, and a lateral positioning component. The first conveying component includes an input platform 21 and a first conveyor belt 22 disposed on the input platform 21. The output end of the input platform 21 is connected to the feeding end of the processing table 10, and the conveying direction of the first conveyor belt 22 is perpendicular to the splicing direction of the sheets. In this embodiment, the first conveyor belt 22 is a non-slip PVC conveyor belt, which is driven by a servo motor, and the conveying speed can be adjusted according to the production cycle to adapt to the conveying requirements of different sheets 90. In some embodiments, the first conveyor belt can also adopt other conveying structures that can realize the linear conveying of sheets, such as roller conveyor or synchronous belt conveyor.

[0025] Multiple adhesive application components are spaced apart on the input platform 21 along the conveying direction of the first conveyor belt 22. In this embodiment, multiple adhesive application components are spaced apart on the side wall of the input platform 21 opposite to the side of the board 90 to be spliced. Each adhesive application component includes a mounting rod 23, an adhesive application roller 24 rotatably mounted on the end of the mounting rod 23, an adsorption coating layer 25 sleeved on the adhesive application roller 24, and an adhesive supply component 26 for supplying adhesive to the adsorption coating layer 25. Specifically, one end of the mounting rod 23 is vertically fixed on the side wall of the input platform 21, and the other end is mounted with the adhesive application roller 24 via a deep groove ball bearing. The adsorption coating layer 25 is used for rolling contact with the side of the board 90 to be spliced. In this embodiment, the adsorption coating layer 25 is made of polyester sponge, which can adsorb sufficient amount of adhesive and coat it evenly, and is suitable for coating various water-based adhesives such as splicing glue and white glue. The adhesive supply component 26 is connected to the adhesive storage tank (not shown) via the connecting pipe 27. In this embodiment, the adhesive supply component 26 adopts a micro peristaltic pump. The outlet of the adhesive supply component 26 is directly opposite the middle of the adsorption coating layer 25 of the coating roller 24, and the adhesive is continuously replenished by a quantitative dripping method. A metering pump is provided on the connecting pipe 27. The metering pump is electrically connected to an external controller to accurately control the amount of adhesive supplied according to the thickness of the board 90 and the conveying speed, so as to ensure that the coating thickness is uniform. A liquid level sensor is provided in the adhesive storage tank. When the adhesive liquid level is lower than the preset value, an alarm is automatically triggered to prompt replenishment.

[0026] To avoid adhesive waste and environmental pollution, the input station 21 is also equipped with a collection tank 211, located below the adhesive application assembly, for collecting dripping adhesive. More preferably, the collection tank 211 has an inclined structure with an inclination angle of 15°-30°. The lower end of the collection tank 211 is connected to the adhesive storage tank through a recycling pipeline. The recycling pipeline is equipped with a filter screen or filter element to filter impurities in the dripping adhesive, realizing the recycling and reuse of excess adhesive.

[0027] The lateral positioning component is used to laterally limit the position of the board 90 during the glue application process. The lateral positioning component includes at least one support roller 28 and an elastic support frame 29. The support roller 28 is connected to the input table 21 through the elastic support frame 29. The support roller 28 is used to roll into contact with the non-spliced ​​side of the board 90. In this embodiment, the side wall of the input table 21 opposite to the glue application component is provided with support rollers 28 at intervals equal to the number of glue application rollers 24. The support rollers 28 and glue application rollers 24 are arranged one-to-one. The elastic support frame 29 adopts a floating support structure with compression springs, so that each support roller 28 can adaptively conform to the non-spliced ​​side of the board 90 with different widths, so as to continuously provide lateral elastic limiting for the board 90 conveyed on the first conveyor belt 22, ensuring that the position of the board 90 does not shift during the conveying process, thereby ensuring that the side of the board 90 to be spliced ​​is always in rolling contact with the adsorption coating layer 25 on the glue application roller 24, further improving the uniformity of glue application.

[0028] The splicing support mechanism is vertically mounted within the splicing station. Through its coordinated operation with the glue application conveying mechanism and the hot pressing mechanism, the splicing support mechanism achieves the functions of receiving, orderly arranging, and hot-pressing the sheet material 90. The splicing support mechanism has a conveying position and a clearance position. When the splicing support mechanism rises to the conveying position, it receives the glued sheet material 90 from the glue application conveying mechanism and conveys it along the splicing direction into the interior of the splicing station. When the splicing support mechanism descends to the clearance position, it is located within the clearance groove 102.

[0029] Specifically, the splicing support mechanism includes a frame 41, a second conveyor belt 42 located at the top of the frame 41, and a plurality of first lifting drive components 43 spaced apart at the bottom of the frame 41. The conveying direction of the second conveyor belt 42 is parallel to the splicing direction of the panels. The first lifting drive components 43 are used to drive the frame 41 and the second conveyor belt 42 to rise or fall synchronously. In this embodiment, the second conveyor belt 42 is a non-slip PVC conveyor belt, driven by a servo motor, and can intermittently convey materials at a set step distance to achieve precise sequential arrangement of multiple panels 90. Multiple first lifting drive components 43 are spaced apart at the bottom of the frame 41 along the splicing direction of the plates. In this embodiment, the first lifting drive component 43 is a double-acting cylinder. Its cylinder body is fixed to the bottom of the clearance groove 102, and the end of the piston rod is fixedly connected to the bottom surface of the frame 41. The double-acting cylinder is electrically connected to an external controller and can drive the frame 41 and the second conveyor belt 42 to rise and fall smoothly along the height direction of the clearance groove 102. When the second conveyor belt 42 is driven to rise to the conveying position, it receives the glued plates 90 from the glue-coating conveying mechanism and drives the plates 90 to be arranged one by one in the splicing groove 101 of the splicing station along the splicing direction. When the second conveyor belt 42 is driven to fall to the clearance position, the frame 41 is completely housed in the clearance groove 102. The upper surface of the second conveyor belt 42 is lower than the upper surface of the heating element 72 to ensure that the hot pressing mechanism will not interfere with the splicing bearing mechanism when it operates. In some embodiments, the first lifting drive 43 may also be a hydraulic cylinder, a screw lifting mechanism, a linear motor, or other drive structure capable of achieving its lifting purpose.

[0030] The plate alignment mechanism ensures the end face flushing accuracy and lateral positioning stability of multiple plates 90 during the splicing process. The mechanism includes a positioning element 31 detachably mounted at one end of the splicing station, and two elastic alignment components located on both sides of the plate splicing direction. The positioning element 31 positions the first plate 90, and its contact surface is provided with a rubber buffer layer to prevent damage caused by hard contact between the side of the plate 90 and the positioning element. In this embodiment, the positioning element 31 is a positioning plate, which is bolted to the processing table 10. In some embodiments, the positioning element can be any structure capable of lateral positioning, such as a limiting block or a limiting roller group.

[0031] Two elastic alignment components are symmetrically arranged on both sides of the splicing station along the length of the sheet material 90. They are used to align the end faces of multiple sheet materials 90 along their length during hot pressing. Each elastic alignment component includes an alignment guide part 32 and an elastic connecting part 33. The inner walls of both sides of the splicing groove 101 are provided with receiving grooves for accommodating the alignment guide part 32. The elastic connecting part 33 is located within these receiving grooves, with one end fixedly connected to the groove wall and the other end fixedly connected to the side of the alignment guide part 32. A guide surface is provided on the side of the alignment guide part 32 facing away from the elastic connecting part 33. In this embodiment, the guide surface has an arc structure, with the arc center located on the side where the elastic connecting part 33 is located. The guide surface abuts against the end of the sheet material 90 along its length so that the sheet material 90 is automatically guided and corrected when it enters.

[0032] The elastic connecting part 33 is used to apply an elastic restoring force toward the plate 90 to the alignment guide part 32. In this embodiment, the elastic connecting part 33 is a spring. The elastic restoring force of the spring applies a continuous lateral preload to the alignment guide part 32, effectively preventing the plate 90 from shifting laterally. In practical applications, when the hot pressing mechanism presses down on the plate 90, the two ends of the plate 90 in the length direction respectively abut against the guide surface of the corresponding alignment guide part 32, causing the alignment guide part 32 to compress the elastic connecting part 33 and move into the receiving groove. As the plate 90 slides down along the guide surface, under the guidance of the guide surface, the two ends of multiple plates 90 in the length direction automatically align, and finally slide down to the heating plate flush with the bottom surface of the alignment guide part 32. The whole process can achieve adaptive alignment without manual adjustment. In some embodiments, the elastic connecting part 33 is selected from structures such as spring sheets and gas springs that can achieve the purpose of this application.

[0033] A lateral pressure mechanism is located on one side of the splicing station along the splicing direction of the panels. It applies a clamping force along the splicing direction to multiple panels 90 arranged within the splicing station, ensuring a tight fit between the splicing surfaces of adjacent panels 90. Specifically, the lateral pressure mechanism includes a pressure member 51 and a pressure driving member 52 connected between the pressure member 51 and the processing table 10. The pressure member 51 is located at the end of the splicing station opposite the positioning member. The pressure driving member 52 drives the pressure member 51 to move towards the positioning member 31, thereby applying lateral pressure to the multiple panels 90 arranged within the splicing station along the splicing direction. In this embodiment, the pressure member 51 adopts a pressure pusher structure. In other alternative embodiments, the pressure member 51 can also adopt any structure capable of lateral pressure clamping, such as a pressure roller group.

[0034] In this embodiment, two pressure driving components 52 are provided between the pressure component 51 and the processing table 10. The two pressure driving components 52 are spaced apart along the length of the pressure component 51. Each pressure driving component 52 includes a servo motor and a lead screw. The lead screw passes through the processing table 10 and is rotatably connected to the processing table 10 through a bearing seat. The pressure component 51 is provided with a transmission nut for threaded engagement with one end of the lead screw. The output shaft of the servo motor is connected to the other end of the lead screw through a coupling. The servo motor is electrically connected to an external controller and can drive the lead screw to rotate in both directions, thereby driving the pressure component 51 to reciprocate along the splicing direction of the plates. This applies a precise and controllable lateral clamping force to the plates 90 arranged in the splicing station, making the splicing surfaces of adjacent plates 90 fit tightly together. In some embodiments, the pressure driving component 52 can also be any structure capable of driving the pressure component 51 to reciprocate, such as a hydraulic cylinder or a pneumatic cylinder.

[0035] Furthermore, a buffer pad is provided on the side of the pressure member 51 that abuts against the plate 90. The buffer pad is made of silicone material, which can prevent damage to the surface of the plate 90 when clamping force is applied. A pressure sensor is also provided between the pressure member 51 and the buffer pad to collect the value of the lateral pressure in real time and feed it back to the external controller to form a closed-loop control. When the lateral pressure reaches the preset value, the pressure driving member 52 stops, and the pressure member 51 maintains the lateral pressure on the plate 90 to avoid deformation of the plate 90 due to excessive pressure or poor adhesion of the splicing surfaces due to insufficient pressure.

[0036] The hot pressing mechanism is located above the splicing station. After the lateral pressing mechanism applies clamping force, it simultaneously applies downward pressure and heat to multiple panels 90 to cure the adhesive and form a complete spliced ​​panel. The hot pressing mechanism includes a fixed frame 61, a hot pressing component 62, and a second lifting drive component 63 connecting the fixed frame 61 and the hot pressing component 62. The fixed frame 61 is fixed to the processing table 10, and the hot pressing component 62 is located above the splicing station. The second lifting drive component 63 drives the hot pressing component 62 to move downwards, thereby achieving the hot pressing operation of the multiple panels 90 arranged in the splicing station. In this embodiment, the fixed frame 61 has an inverted U-shaped structure and is fixed to the upper surface of the processing table 10 by bolts, spanning directly above the splicing groove 101. In this embodiment, the second lifting drive component 63 adopts a double-acting hydraulic cylinder. Its cylinder body is fixed on the top crossbeam of the fixed frame 61, and its piston rod extends vertically downward. The end of the piston rod is fixedly connected to the upper surface of the hot press component 62 through a flange. It is used to drive the hot press component 62 to move up and down along the height direction of the fixed frame 61 to complete the hot pressing operation of multiple plates 90 arranged in the splicing station. This ensures that the adhesive fully penetrates into the splicing surface of the plates 90 under pressure, thereby improving the splicing strength.

[0037] Furthermore, in order to ensure the smooth lifting and lowering of the hot press 62 and prevent it from shifting or tilting, the inner sidewalls of the two vertical parts of the fixing frame 61 are respectively provided with guide grooves extending along their height direction, and the two ends of the hot press 62 are respectively slidably engaged with the corresponding guide grooves through sliders.

[0038] More specifically, the hot pressing component 62 is a metal pressure plate with multiple sets of electric heating tubes embedded inside. The lower surface of the pressure plate is coated with a high-temperature resistant and anti-slip coating, which not only enhances the friction between the pressure plate and the surface of the sheet 90, but also prevents the sheet 90 from sliding during hot pressing, while avoiding coating peeling and contamination of the sheet 90 due to high temperature. The multiple sets of electric heating tubes are evenly spaced along the length of the pressure plate. The electric heating tubes are made of nickel-chromium alloy and the heating temperature can be precisely adjusted through a temperature control system. It can be adapted to the curing temperature requirements of different types of bamboo and wood adhesives (such as urea-formaldehyde resin glue, white latex glue, polyurethane glue, etc.). Multiple temperature sensors are also embedded inside the pressure plate to monitor the temperature of each area of ​​the pressure plate in real time, ensuring that the temperature uniformity error of the hot pressing surface is ≤3℃.

[0039] The auxiliary heating mechanism works in conjunction with the hot pressing mechanism to achieve bidirectional heating and pressurization of the sheet 90, ensuring rapid and uniform curing of the adhesive and further improving hot pressing efficiency and curing uniformity. The auxiliary heating mechanism includes multiple heating components spaced apart within the splicing station. Each heating component includes a pad 71 and a heating element 72 positioned on top of the pad 71. The upper surface of the heating element 72 is flush with the bottom surface of the elastic alignment component. In this embodiment, the pad 71 is a ceramic pad, which effectively blocks downward heat conduction, saving energy and providing stable support for the heating element 72. The heating element 72 is a high-frequency heating plate, with its upper surface flush with the bottom surface of the alignment guide 32, ensuring that when the sheet 90 is pressed down by the hot pressing mechanism, its bottom surface fully adheres to the upper surface of the heating element 72, achieving uniform heating from the bottom.

[0040] To achieve automated control and safe operation of the entire system, the processing system is also equipped with an external controller for electrical connection with the aforementioned mechanisms. This controller is a PLC controller with a touch screen human-machine interface. Operators can preset processing parameters such as glue application amount, lateral pressure, hot pressing temperature, hot pressing time, and conveying speed via the touch screen. The system has multiple built-in process parameter storage modules (capable of storing more than 50 process schemes), which can be quickly retrieved for bamboo and wood boards of different specifications and materials. The touch screen displays the operating status, parameter values, and fault alarm information of each mechanism in real time, facilitating monitoring and maintenance by operators.

[0041] In practical applications, the working principle of the bamboo and wood furniture splicing hot pressing bonding system of this application can be as follows: First, according to the specifications and material of the board 90 to be processed, the corresponding processing parameters are called or set through the touch screen human-machine interface, including the amount of glue applied, the lateral pressure, the hot pressing temperature, the hot pressing time, the speed of the first conveyor belt 22 and the second conveyor belt 42, etc.; the furniture-specific splicing glue is added to the adhesive storage tank, the metering pump is started, so that the adhesive is evenly wetted on the adsorption coating layer 25 on the glue application roller 24 through the glue supply component 26; the system preheating is started, the hot pressing mechanism and the auxiliary heating mechanism begin to heat up to the set temperature, and the adhesive in the adhesive storage tank is preheated and ready for use.

[0042] Subsequently, multiple sheets 90 are placed sequentially on the input table 21 of the glue-coating conveying mechanism. The first sheet 90 does not require glue during conveying and can be manually placed directly into the side position of the positioning component. When subsequent sheets 90 are input, their sides to be spliced ​​face the glue-coating component. The first conveyor belt 22 is started to convey the sheets 90. During the conveying process, the lateral positioning component adaptively fits the non-splicing side of the sheet 90, providing lateral limiting and automatic correction to ensure that the sheet 90 is not deviated during conveying. Specifically, the support roller 28, under the action of the elastic support frame 29, provides lateral limiting for the sheet 90, ensuring that the side of the sheet 90 to be spliced ​​is in precise contact with the adsorption coating layer 25 of the glue-coating roller 24. The glue-coating roller 24 rolls to achieve uniform glue application to the side of the sheet 90 to be spliced. The adhesive dripping during the glue-coating process is collected by the collection tank 211, filtered by the filter screen, and then returned to the adhesive storage box for recycling.

[0043] The glued boards 90 continue to be conveyed under the drive of the first conveyor belt 22, and enter the splicing station through the feeding end. The second conveyor belt 42 drives the boards 90 to be arranged one by one in the splicing groove 101 of the splicing station along the splicing direction until the entire batch of boards 90 is stacked. After the plates 90 are arranged, the first conveyor belt 22 and the second conveyor belt 42 stop running synchronously. The first lifting drive 43 drives the frame 41 of the splicing bearing mechanism and the second conveyor belt 42 to slowly descend to the clearance position. The frame 41 is completely housed in the clearance groove 102. The upper surface of the second conveyor belt 42 is lower than the upper surface of the heating element 72. At this time, the plates 90 fall downwards, and the two ends of the plates 90 in the length direction abut against the guide surface of the corresponding alignment guide 32. The pressure drive 52 is started, and the servo motor drives the lead screw to rotate, which drives the pressure element 51 to move towards the plate 90 and pushes the plate 90 to fit against the positioning element, so that the splicing surfaces of the two adjacent plates 90 fit tightly. The pressure sensor provides real-time feedback of the clamping force value. When the set value is reached, the pressure drive 52 stops and maintains the lateral pressure.

[0044] The second lifting drive 63 is activated, driving the hot press 62 to move downwards. After the hot press 62 contacts the upper surface of the plate 90, it continues to apply downward pressure. During the pressing process, the two ends of the plate 90 in the length direction abut against the guide surface of the alignment guide 32, causing the alignment guide 32 to compress the elastic connecting part 33 and move into the receiving groove. The plate 90 slides down along the guide surface. Under the guidance of the guide surface, the two ends of multiple plates 90 in the length direction are automatically aligned. After the hot press 62 is pressed down to the set pressure, it holds the pressure. At the same time, the hot press 62 and the heating element 72 below heat in both directions synchronously, so that the glue on the splicing surface of the plate 90 is cured quickly and evenly, completing the hot press splicing. After the set hot-pressing and holding time is reached, the second lifting drive 63 drives the hot-pressing component 62 to reset upwards, and the pressurizing drive 52 drives the pressurizing component 51 to move away from the plate 90 to release the plate 90. After the positioning component at the discharge end is disassembled, the first lifting drive 43 of the splicing bearing mechanism is activated, which drives the frame 41 and the second conveyor belt 42 to rise to the conveying position. The second conveyor belt 42 starts and sends the formed integral splice through the output table 80 out of the splicing slot 101, completing the automatic unloading. The operator can directly transfer the finished plate to the subsequent cutting and edge sealing process. After that, the system automatically resets and enters the next batch processing cycle.

[0045] Compared to existing technologies, the beneficial effects of the bamboo and wood furniture splicing hot-press bonding system of this application are as follows: By setting up an adhesive conveying mechanism, automatic and continuous adhesive application is completed simultaneously on the sides of the boards to be spliced ​​during the board conveying process. Furthermore, the lateral limiting component ensures that the adsorbent coating layer in the adhesive application component maintains rolling contact with the sides of the boards to be spliced, achieving uniform adhesive application without any missed or insufficient application. Simultaneously, the collection tank can recover excess adhesive dripping, enabling adhesive recycling and reuse. Further, by setting up a board alignment mechanism, automatic alignment of the end faces of multiple boards is achieved. During use, no additional drive mechanism is required; the downward pressure of the hot-pressing mechanism alone is sufficient to drive the boards to slide along the guide surface of the alignment guide, automatically achieving flush alignment of the two ends of multiple boards along their length direction. This solves the problems of repeated adjustments, time-consuming processes, and poor accuracy associated with manual alignment. Furthermore, by setting up an auxiliary heating mechanism in conjunction with the hot pressing mechanism, a bidirectional heating structure for the board is achieved. During the hot pressing process, the board is heated simultaneously from both the top and bottom sides, causing the adhesive on the splicing surface to be heated and cured at the same time. At the same time, bidirectional heating ensures uniform curing of the adhesive, completely solving the problem of uneven curing caused by single-sided heating. The bonding strength of the spliced ​​boards is significantly improved, and the water resistance and aging resistance are significantly enhanced.

[0046] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims

1. A hot-press bonding system for bamboo and wood furniture panels, characterized in that, include: The processing table is equipped with a splicing station for accommodating and splicing multiple plates, and a feeding end located on one side of the splicing station. The adhesive conveying mechanism is used to convey multiple boards one by one to the feeding end, and to apply adhesive to the side of each board to be spliced ​​during the conveying process. The splicing support mechanism is vertically mounted within the splicing station and has a conveying position and a clearance position. When the splicing support mechanism rises to the conveying position, it is used to receive the glued board material from the glue conveying mechanism and convey it along the splicing direction to arrange it inside the splicing station. The plate alignment mechanism includes a positioning component detachably disposed at one end of the splicing station, and two elastic alignment components disposed on both sides of the plate splicing direction. The positioning component is used to position the first plate, and the elastic alignment components are used to align the end faces of multiple plates during the hot pressing process. A lateral pressure mechanism is located on one side of the splicing station along the splicing direction of the panels. It is used to apply a clamping force along the splicing direction to multiple panels arranged in the splicing station, so that the splicing surfaces of two adjacent panels fit tightly together. The hot pressing mechanism, located above the splicing station, is used to simultaneously apply downward pressure and heat to multiple panels after the clamping force is applied by the lateral pressing mechanism, so as to cure the adhesive and form an integral splice.

2. The bamboo and wood furniture panel hot-press bonding system according to claim 1, characterized in that, The adhesive delivery mechanism includes: The first conveying assembly includes an input platform and a first conveyor belt disposed on the input platform. The output end of the input platform is connected to the feed end, and the conveying direction of the first conveyor belt is perpendicular to the splicing direction of the sheet metal. Multiple adhesive application assemblies are spaced apart on the input platform along the conveying direction of the first conveyor belt. Each adhesive application assembly includes a mounting rod, an adhesive application roller rotatably disposed at the end of the mounting rod, an adsorption coating layer sleeved on the adhesive application roller, and an adhesive supply component for supplying adhesive to the adsorption coating layer. The adsorption coating layer is used for rolling contact with the side of the board to be spliced. The adhesive supply component is connected to an adhesive storage tank through a connecting pipe. The input station is also equipped with a collection tank located below the adhesive application assembly, which is used to collect dripping adhesive.

3. The bamboo and wood furniture panel hot-press bonding system according to claim 2, characterized in that, The adhesive conveying mechanism also includes a lateral positioning component for laterally limiting the position of the board during the adhesive application process. The lateral positioning component includes at least one support roller and an elastic support frame. The support roller is connected to the input platform through the elastic support frame and is used to make rolling contact with the non-jointed side of the board.

4. The bamboo and wood furniture panel hot-press bonding system according to claim 1, characterized in that, The elastic alignment assembly includes an alignment guide and an elastic connection between the alignment guide and the processing table. The elastic connection is used to apply an elastic restoring force toward the plate to the alignment guide.

5. The bamboo and wood furniture panel hot-press bonding system according to claim 1, characterized in that, The splicing station includes a splicing groove on the processing table and a clearance groove communicating with the splicing groove. When the splicing support mechanism descends to the clearance position, the splicing support mechanism is located in the clearance groove.

6. The bamboo and wood furniture panel hot-press bonding system according to claim 5, characterized in that, The splicing support mechanism includes a frame, a second conveyor belt located at the top of the frame, and a plurality of first lifting drive components spaced apart at the bottom of the frame. The conveying direction of the second conveyor belt is parallel to the splicing direction of the panels. The first lifting drive components are used to drive the frame and the second conveyor belt to rise or fall.

7. The bamboo and wood furniture panel hot-press bonding system according to claim 1, characterized in that, The lateral pressurization mechanism includes a pressurizing component and a pressurization drive component connected between the pressurizing component and the processing table. The pressurizing component is located at one end of the splicing station opposite to the positioning component. The pressurizing component is driven by the pressurization drive component to move towards the positioning component, so as to apply lateral pressure to multiple plates arranged in the splicing station along the splicing direction of the plates.

8. The bamboo and wood furniture panel hot-press bonding system according to claim 1, characterized in that, The hot pressing mechanism includes a fixed frame, a hot pressing component, and a second lifting drive component connecting the fixed frame and the hot pressing component. The fixed frame is fixed on the processing table, and the hot pressing component is located above the splicing station. The second lifting drive component drives the hot pressing component to move downward so as to realize the hot pressing operation of the hot pressing component on multiple plates arranged in the splicing station.

9. The bamboo and wood furniture panel hot-press bonding system according to claim 1, characterized in that, It also includes an auxiliary heating mechanism, which includes a plurality of heating components spaced apart within the splicing station. Each heating component includes a pad and a heating element disposed on top of the pad. The upper surface of the heating element is flush with the bottom surface of the elastic alignment component.

10. The bamboo and wood furniture panel hot-press bonding system according to claim 1, characterized in that, It also includes an output platform, which is fixed to the discharge end of the processing table.

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