A wood-based panel adhesive coating equipment and its coating process

By designing adhesive coating equipment and processes for wood panels, and utilizing the combination of sliding mounting frames and adhesive injection mechanisms, the problems of high labor costs and low coating efficiency caused by the complexity of adhesive coating for wood panels were solved, thereby achieving uniformity and efficiency improvement in adhesive coating.

CN115945342BActive Publication Date: 2026-01-06安吉畅欧竹木业有限公司
View PDF 2 Cites 0 Cited by

Patent Information

Application Number
CN202310158986.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-02-24
Publication Date
2026-01-06
Estimated Expiration
2043-02-24

AI Technical Summary

Technical Problem

The complexity of applying adhesive to wood panels in existing technologies leads to high labor costs, low coating efficiency, and difficulty in controlling the application force and speed, which can easily result in uneven adhesive layers, waste, or product defects.

Method used

A wood panel adhesive coating device was designed, including a sliding mounting frame, an adhesive injection mechanism, and a brushing mechanism. The brushing speed and force are controlled by the cooperation of an air bladder tube and sliding wheels, and the temperature of the adhesive is maintained by an insulation tube. Combined with a specific adhesive coating process, the uniformity and efficiency of the adhesive coating are ensured.

Benefits of technology

It improves the uniformity and efficiency of glue application on wood panels, reduces labor costs, decreases product defects, and enhances glue application quality.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN115945342B_ABST
    Figure CN115945342B_ABST
Patent Text Reader

Abstract

The application relates to the field of plate processing, and discloses a wood plate glue layer coating equipment and a coating process thereof. The coating equipment comprises a workbench and further comprises sliding mounting frames arranged above both sides of the workbench, a sliding groove is formed in the inner side of the sliding mounting frame, and an air bag pipe is mounted in the sliding groove. A glue injection mechanism is slidingly mounted in the middle part of the sliding mounting frame, the glue injection mechanism is used for spraying woodworking glue on the wood plate, a brushing mechanism is mounted on the side of the glue injection mechanism, the brushing mechanism comprises a glue coating sliding frame and a glue coating roller mounted in the middle part of the glue coating sliding frame, sliding wheels are arranged on both sides of the glue coating sliding frame, the sliding wheels roll in the sliding groove, the sliding wheels can only keep slow and uniform speed, so that the brushing intensity and speed are naturally kept stable when a construction worker moves the brushing mechanism, the glue coating is more uniform, and the glue coating quality and efficiency of the wood plate are improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention relates to the field of wood panel adhesive technology, specifically to an adhesive coating device and coating process for wood panels. Background Technology

[0002] Wood-based panels are a common type of plywood. In the home decoration industry, many decorative panels choose wood-based panels as their material because they are easy to install and connect with other objects. Therefore, when using wood-based panels, an adhesive layer needs to be applied to their exterior to allow them to bond with materials such as stone and wood veneer.

[0003] Wood glue is generally used for applying adhesives to wood panels. As a crucial part of home decoration, the quality of wood glue application significantly affects the aesthetics and quality of the finished product. Before applying wood glue, the climate must be tested. The temperature and humidity of the substrate, wood glue, and workshop must be controlled to meet the standards for wood glue application. Applying wood glue at the critical temperature will result in prolonged pressure time, poor adhesive strength, or failure to form a film. In hot seasons, the assembly time should be shortened and the coating amount increased.

[0004] Meanwhile, the amount of glue applied depends on the smoothness, roughness, absorption, and evaporation of the wood surface. Coarse-sanded wood surfaces absorb more water, polished wood surfaces absorb less water, and oily wood surfaces absorb very little water. Due to the complexity of glue application to wood panels and the variations in panel materials, manual application is often used in practice, resulting in high labor costs, low efficiency, and difficulty in controlling the application pressure and speed manually, which can easily lead to uneven glue layers, waste, or product defects. Therefore, this approach does not meet current needs. To address this, we propose a wood panel glue application equipment and its application process. Summary of the Invention

[0005] This invention provides a wood panel adhesive coating device and its coating process, which has the following advantages: it solves the problems mentioned in the background art, such as the complexity of wood panel adhesive coating and the difference in panel material, which often leads to manual subjective adhesive coating in real life, resulting in high labor costs, low coating efficiency, and difficulty in controlling the force and speed of adhesive coating by hand, which easily leads to uneven adhesive layer, waste or product defects.

[0006] This invention provides the following technical solution: a wood panel adhesive coating device, comprising a work platform, and further comprising:

[0007] The sliding mounting brackets are arranged on both sides above the working platform. The inner side of the sliding mounting brackets is provided with a sliding groove, and an airbag tube is installed inside the sliding groove.

[0008] A glue-injection mechanism is slidably mounted in the middle of the sliding mounting frame, the glue-injection mechanism being used to spray wood glue onto the wood board;

[0009] A coating mechanism is installed on the side of the glue injection mechanism. The coating mechanism includes a glue application sliding frame and a glue application roller installed in the middle of the glue application sliding frame. Sliding wheels are provided on both sides of the glue application sliding frame. The sliding wheels roll in the sliding groove and are in interference fit with the airbag tube.

[0010] As an optional embodiment of the wood panel adhesive coating equipment of the present invention, the working platform is provided with a horizontally placed rectangular platform, and a platform connecting frame is connected to one end of the working platform. The cross-section of the platform connecting frame is a horizontally inverted U-shape. The other end of the platform connecting frame is connected to the sliding mounting frame. The sliding mounting frame is parallel to the working platform, and a distance is maintained between the sliding mounting frame and the working platform.

[0011] As an optional solution of the wood panel adhesive coating equipment of the present invention, the airbag tube is a rubber tube, and a plurality of air tube separators are provided inside the airbag tube. The plurality of air tube separators are arranged at equal intervals. An air chamber is formed between two adjacent air tube separators inside the airbag tube. A vent hole is provided in the middle of the air tube separator, and two adjacent air chambers are connected through the vent hole.

[0012] As an optional embodiment of the wood panel adhesive coating equipment of the present invention, the adhesive coating sliding frame is provided with two sliding wheels on one side, a horizontal connecting bridge plate is installed on the bottom side of the adhesive coating sliding frame, and two pulley shafts are rotatably installed on the outer side of the horizontal connecting bridge plate, and the two pulley shafts are connected to the two sliding wheels.

[0013] As an optional embodiment of the wood panel adhesive coating equipment of the present invention, a crossbar is fixedly installed at the top of the adhesive coating sliding frame, the crossbar is parallel to the adhesive coating roller, a supporting cross plate is fixedly installed on the front side of the adhesive coating sliding frame, and the adhesive injection mechanism is installed on the side of the supporting cross plate.

[0014] As an optional embodiment of the wood panel adhesive coating equipment described in this invention, the adhesive injection mechanism includes an adhesive application tube and an adhesive pusher movably installed inside the adhesive application tube. The adhesive application tube is installed on the upper side of the supporting horizontal plate. A first adhesive injection tube is connected to the end of the adhesive application tube. A second adhesive injection tube is installed on the side of the supporting horizontal plate. The first adhesive injection tube is connected to the second adhesive injection tube. A plurality of third adhesive injection tubes are connected to the side of the second adhesive injection tube. The plurality of third adhesive injection tubes are equidistantly arranged, and each of the plurality of third adhesive injection tubes is configured as a downwardly inclined adhesive outlet.

[0015] As an optional solution of the wood panel adhesive coating equipment of the present invention, the adhesive pusher is configured as a piston push rod, one end of the adhesive pusher is configured as a T-shaped push handle, and the other end of the adhesive pusher is connected to an adhesive pushing piston, wherein the adhesive pushing piston slides and adheres to the adhesive body through the inner wall of the tube.

[0016] As an optional solution for the wood panel adhesive coating equipment described in this invention, an insulation pipe is installed on the upper side of the support plate. The insulation pipe is installed on the outside of the adhesive application pipe and is used to insulate the wood adhesive.

[0017] As an optional solution of the wood panel adhesive coating equipment of the present invention, wherein: a partition plate is fixedly installed on the inner side of the sliding mounting frame, the partition plate is horizontally arranged, the partition plate is located in the middle of the slide groove, the sliding wheel rolls and fits against the partition plate, both ends of the slide groove are set as C-shaped groove ends, and a gap is left between the partition plate and the C-shaped groove ends.

[0018] This solution also proposes a wood-based panel adhesive coating process, including the following specific steps:

[0019] S1. Pre-treatment of wooden boards: This includes degreasing, removing moisture, and sanding the wooden boards to keep the surface clean, dry, and firm. The pre-treated wooden boards are then placed upright on the work platform.

[0020] S2. Adhesive pretreatment: Insulate the adhesive with heat and stir it thoroughly. Pour the adhesive into the adhesive application tube and use the heat-insulating tube to keep it warm.

[0021] S3. Applying glue: Use the glue application roller to apply a thin and even layer of glue, and move in the same direction when applying. When the glue application roller returns, use the crossbar to lift the application mechanism and move the sliding wheel from the upper side of the partition plate to the end of the groove.

[0022] S4. Drying: Dry for 5-15 minutes at 25℃. Once the adhesive layer is a dry film, align and bond immediately.

[0023] The present invention has the following beneficial effects:

[0024] 1. The wood panel adhesive coating equipment and its coating process involve placing the wood panel to be coated on the upper side of the work platform. Through the cooperation of the sliding mounting frame, the glue injection mechanism, and the brushing mechanism, wood glue is applied to the wood panel. When the glue-coating sliding frame is moved, the glue roller contacts the surface of the wood panel, thereby applying the wood glue to the surface of the wood panel. Because the sliding wheel and the air bladder tube are tightly fitted, the air inside the air bladder tube is compressed and moves when the sliding wheel moves. Due to the setting of the vent and air chamber, the air in the air chamber needs a certain amount of time to pass through the vent. If the sliding wheel speed is too fast, the air bladder tube is not compressed for long enough, and the vent is not completely vented, resulting in more air remaining in the air chamber. The air bladder tube cannot fully deform, which will result in insufficient deformation of the air bladder tube for the sliding wheel to pass through. Therefore, the sliding wheel can only move slowly and at a constant speed on the air bladder tube, so that the construction personnel can maintain a stable brushing force and speed when moving the brushing mechanism, thereby making the glue application more uniform and improving the glue coating quality and efficiency of the wood panel.

[0025] 2. In order to prevent residual air in the adhesive layer, the adhesive roller should move in the same direction during application to facilitate air expulsion. Therefore, a dividing plate is set in the middle of the chute, and the two ends of the chute are set as C-shaped groove ends. When the adhesive roller moves from the beginning to the end of the chute, the operator uses a crossbar to lift the adhesive sliding frame, so that the sliding wheel moves along the C-shaped groove end to the upper side of the dividing plate, and then the sliding wheel returns to the beginning of the chute along the dividing plate. During this process, the adhesive roller is raised without contacting the surface of the wood board and returns to the end of the wood board, thus ensuring that the adhesive roller applies the adhesive to the wood board in only one direction, reducing air in the adhesive layer and improving the quality of the adhesive application.

[0026] 3. The adhesive coating equipment and process for wood panels, through the setting of the heat insulation pipe, keeps the adhesive inside the pipe at a constant temperature. During the injection of adhesive, it is kept as warm as possible to prevent the adhesive from solidifying due to temperature drop, thereby extending the usable time of the adhesive after one heating and further improving the efficiency of adhesive coating. Attached Figure Description

[0027] Figure 1 This is a top-view three-dimensional structural diagram of the present invention.

[0028] Figure 2 This is a frontal three-dimensional structural diagram of the present invention.

[0029] Figure 3 This is a schematic diagram of the cross-sectional structure of the airbag tube of the present invention.

[0030] Figure 4 This is a top view of the structure of the present invention.

[0031] Figure 5 This is a partial cross-sectional structural diagram of the present invention.

[0032] Figure 6 This is a three-dimensional structural diagram of the colloid tube of the present invention.

[0033] Figure 7 This is a partial side view of the structure of the present invention.

[0034] Figure 8 This is a partial cross-sectional structural diagram of the present invention.

[0035] Figure 9 This is an enlarged structural diagram of point A in the present invention.

[0036] In the diagram: 110, Working platform; 120, Platform connecting frame; 130, Sliding mounting frame; 140, Slide groove; 150, Airbag tube; 151, Air tube separator membrane; 152, Air chamber; 153, Vent hole; 160, Separating plate; 170, Side stabilizing block; 180, C-shaped groove end; 200, Coating mechanism; 210, Glue roller; 220, Glue sliding frame; 221, Horizontal connecting bridge plate; 222, Sliding wheel; 223, Pulley shaft; 230, Crossbar; 240, Loading plate; 300, Glue injection mechanism; 310, Glue application tube; 320, Glue pusher; 321, Glue pusher piston; 330, Insulation pipe; 340, First glue injection tube; 350, Second glue injection tube; 360, Third glue injection tube. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] Example 1

[0039] This embodiment aims to address the current problem that, due to the complexity of adhesive application for wood-based panels and the variations in panel materials, adhesive application is often done manually and subjectively. This results in high labor costs, low efficiency, and difficulty in controlling the application pressure and speed manually, easily leading to uneven adhesive layers, waste, or product defects. Please refer to [link to relevant documentation]. Figures 1-9 A wood-based panel adhesive coating device and its coating process, comprising a work platform 110, and further comprising:

[0040] The sliding mounting brackets 130 are set on both sides above the work platform 110. The inner side of the sliding mounting brackets 130 is provided with a sliding groove 140, and an airbag tube 150 is installed inside the sliding groove 140.

[0041] A glue injection mechanism 300 is slidably installed in the middle of the sliding mounting bracket 130. The glue injection mechanism 300 is used to spray wood glue onto the wood board.

[0042] A coating mechanism 200 is installed on the side of the glue injection mechanism 300. The coating mechanism 200 includes a glue application sliding frame 220 and a glue application roller 210 installed in the middle of the glue application sliding frame 220. Sliding wheels 222 are provided on both sides of the glue application sliding frame 220. The sliding wheels 222 roll in the sliding groove 140 and are in interference fit with the airbag tube 150. For specific settings, see [link to specific details]. Figure 3 The airbag tube 150 is a rubber tube, and a plurality of tracheal diaphragms 151 are provided inside the airbag tube 150. The plurality of tracheal diaphragms 151 are arranged at equal intervals. An air chamber 152 is formed between two adjacent tracheal diaphragms 151 inside the airbag tube 150. A vent hole 153 is provided in the middle of the tracheal diaphragm 151, and two adjacent air chambers 152 are connected through the vent hole 153.

[0043] The sliding wheel 222 is pressurized against the air bladder tube 150. When the sliding wheel 222 moves, the air inside the air bladder tube 150 is compressed and moves. Due to the setting of the vent hole 153 and the air chamber 152, the air in the air chamber 152 needs a certain amount of time to pass through the vent hole 153. If the sliding wheel 222 moves too fast, the air bladder tube 150 is not compressed for long enough, and the vent hole 153 is not completely vented, resulting in more air remaining in the air chamber 152. The air bladder tube 150 cannot be fully deformed, which will result in the air bladder tube 150 not being deformed enough for the sliding wheel 222 to pass through. Therefore, the sliding wheel 222 can only move slowly and at a constant speed on the air bladder tube 150, thus limiting the movement speed of the entire coating mechanism 200.

[0044] See Figure 1 and Figure 2 The work platform 110 is a horizontally placed rectangular platform. A platform connecting frame 120 is connected to one end of the work platform 110. The platform connecting frame 120 has a horizontally inverted U-shaped cross-section. The other end of the platform connecting frame 120 is connected to a sliding mounting frame 130. The sliding mounting frame 130 is parallel to the work platform 110, and a distance is maintained between the sliding mounting frame 130 and the work platform 110. To ensure the stability of the sliding mounting frame 130 under stress, see... Figure 7 A side stabilizing block 170 is installed between the sliding mounting frame 130 and the work platform 110, which provides support for the suspended part of the sliding mounting frame 130 and improves stability.

[0045] To maintain the balance of the glue application sliding frame 220, two sliding wheels 222 are provided on each side of the glue application sliding frame 220. A horizontal connecting bridge plate 221 is installed on the bottom side of the glue application sliding frame 220. Two pulley shafts 223 are rotatably installed on the outer side of the horizontal connecting bridge plate 221 through bearings. The two pulley shafts 223 are connected to the two sliding wheels 222.

[0046] At the same time, see Figure 4 , Figure 5 and Figure 9 A crossbar 230 is fixedly installed at the top of the glue application sliding frame 220 for manually controlling the movement of the brushing mechanism 200. The crossbar 230 is parallel to the glue application roller 210. A support plate 240 is fixedly installed on the front side of the glue application sliding frame 220, and the glue injection mechanism 300 is installed on the side of the support plate 240.

[0047] Most adhesive application machinery uses single-point adhesive application, which results in low application efficiency and significantly reduces the overall production efficiency of the machinery. (See...) Figure 8 The glue dispensing mechanism 300 includes a glue application tube 310 and a glue pusher 320 movably installed inside the glue application tube 310. The glue application tube 310 is installed on the upper side of the support plate 240. A first glue dispensing tube 340 is connected to the end of the glue application tube 310. A second glue dispensing tube 350 is installed on the side of the support plate 240. The first glue dispensing tube 340 is connected to the second glue dispensing tube 350. A plurality of third glue dispensing tubes 360 are connected to the side of the second glue dispensing tube 350. The plurality of third glue dispensing tubes 360 are equidistantly arranged, and each of the plurality of third glue dispensing tubes 360 is configured as a downwardly inclined glue outlet. By setting multiple third glue dispensing tubes 360, glue can be dispensed at multiple points simultaneously, improving the glue dispensing efficiency and promoting uniform glue application.

[0048] In this embodiment: the wood board to be glued is placed on the upper side of the work platform 110. Through the cooperation of the sliding mounting frame 130, the glue injection mechanism 300 and the brushing mechanism 200, the wood glue is applied to the wood board. When the glue application sliding frame 220 is moved, the glue application roller 210 contacts the surface of the wood board, thereby applying the wood glue to the surface of the wood board.

[0049] Furthermore, through the cooperation of the sliding wheel 222 and the airbag tube 150, when the sliding wheel 222 moves, the air inside the airbag tube 150 is compressed and moves. Due to the setting of the vent hole 153 and the air chamber 152, the air in the air chamber 152 needs a certain amount of time to pass through the vent hole 153. If the speed of the sliding wheel 222 is too fast, the airbag tube 150 is not compressed for long enough, and the vent hole 153 does not completely exhaust air, resulting in more air remaining in the air chamber 152. The airbag tube 150 cannot be fully deformed, which will result in the airbag tube 150 not being deformed enough to allow the sliding wheel 222 to pass through.

[0050] Therefore, the sliding wheel 222 can only move slowly and at a constant speed on the air bladder tube 150, which limits the movement speed of the entire coating mechanism 200. This allows the construction personnel to maintain a stable coating force and speed when moving the coating mechanism 200, resulting in more uniform glue application and improved glue application quality and efficiency for wood panels.

[0051] Example 2

[0052] This embodiment aims to address the problem that, while applying adhesive in the same direction to prevent air residue, the roller may roll back off the wood surface during the return stroke, preventing air from being expelled. This embodiment is an improvement upon Embodiment 1. For details, please refer to [link to Embodiment 1]. Figure 2 and Figure 8 A partition plate 160 is fixedly installed inside the sliding mounting bracket 130. The partition plate 160 is horizontally positioned and located in the middle of the slide groove 140. The sliding wheel 222 rolls in contact with the partition plate 160. Figure 8 In a specific configuration, when the glue-applying roller 210 applies glue to the wooden board, the sliding wheel 222 moves between the separating long plate 160 and the air bladder tube 150. At this time, the glue-applying roller 210 contacts the surface of the wooden board to achieve glue application.

[0053] Both ends of the chute 140 are set as C-shaped groove ends 180, and there is a gap between the partition plate 160 and the C-shaped groove ends 180. When the glue roller 210 brushes the tail end of the wood board, the sliding wheel 222 moves to the end of the chute 140. At this time, the crossbar 230 is used to lift the entire brushing mechanism 200, so that the glue roller 210 is raised and the sliding wheel 222 moves along the C-shaped groove end 180 from between the partition plate 160 and the air bladder tube 150 to the upper side of the partition plate 160. At this time, when the glue roller 210 returns to the beginning end of the wood board, it will not contact the wood board.

[0054] In this embodiment: the worker uses the crossbar 230 to lift the glue application sliding frame 220, so that the sliding wheel 222 moves along the C-shaped groove end 180 to the upper side of the dividing plate 160, and then the sliding wheel 222 returns along the dividing plate 160 to the beginning end of the slide groove 140. During this process, the glue application roller 210 is raised without contacting the surface of the wood board, and returns to the end of the wood board, thereby realizing that the glue application roller 210 applies the glue to the wood board in only one direction, reducing air in the glue layer and improving the quality of glue application.

[0055] Example 3

[0056] This embodiment aims to address the problem that conventional woodworking adhesives have a specific operating temperature range; below this range, the adhesive solidifies and becomes unapplicable, requiring multiple heating cycles during application, which is cumbersome. This embodiment is an improvement upon Embodiment 1. For details, please refer to [link to Embodiment 1]. Figure 6 and Figure 8 The glue pusher 320 is configured as a piston push rod, one end of the glue pusher 320 is configured as a T-shaped push handle, and the other end of the glue pusher 320 is connected to a glue pushing piston 321, which slides and fits against the inner wall of the glue application tube 310.

[0057] A heat-insulating pipe 330 is installed on the upper side of the support plate 240. The heat-insulating pipe 330 is installed on the outside of the adhesive application pipe 310 and is used for heating and heat preservation of wood glue. In specific settings, the heat-insulating pipe 330 is a composite pipe of polyurethane foam and tin foil cloth.

[0058] In this embodiment, the heat insulation tube 330 is used to keep the colloid in the colloid application tube 310 warm. During the colloid application, the colloid is kept from solidifying due to temperature drop as much as possible, which extends the usable time of the colloid after one heating and further improves the efficiency of colloid application.

[0059] Example 4

[0060] A wood-based panel adhesive coating process includes the following specific steps:

[0061] S1. Pre-treatment of wood panels: This includes degreasing, removing moisture, and sanding the wood panels to keep the surface clean, dry, and firm. The pre-treated wood panels are then placed upright on the work platform 110.

[0062] S2. Adhesive pretreatment: Heat and keep the adhesive at a constant temperature, and stir it thoroughly. Pour the adhesive into the adhesive application tube 310 and keep it heated continuously using the insulation tube 330.

[0063] S3. Applying glue: Use the glue application roller 210 to apply a thin and even layer of glue, and move in the same direction when applying. When the glue application roller 210 returns, use the crossbar 230 to lift the application mechanism 200 and move the sliding wheel 222 from the upper side of the partition plate 160 to the end of the chute 140.

[0064] S4. Drying: Dry for 5-15 minutes at 25℃. Once the adhesive layer is a dry film, align and bond immediately.

[0065] In S1, the amount of adhesive applied depends on the smoothness, roughness, absorption, and evaporation of the wood surface. Coarse-sanded wood surfaces absorb more water, polished wood surfaces absorb less water, and oily wood surfaces absorb very little water. Therefore, to control the amount of adhesive applied within a certain range, pretreatment of the wood panel surface is necessary. If the adhesive used is a panel glue, it is essential to properly treat the surfaces of the objects to be bonded before use. This includes degreasing, removing moisture, and sanding to ensure the surface is clean, dry, and firmly bonded. Specifically, degreasing and cleaning can be done by wiping with quick-drying solvents such as No. 120 gasoline, toluene, or ethyl acetate, and then allowing it to dry. Sanding is generally done lightly with No. 0 or No. 1 sandpaper.

[0066] When gluing plywood, flooring, bamboo, or other wood products, the moisture content of the materials to be glued must be below 8% before applying the glue. If it is higher than 8%, the materials to be glued should be dried or oven-dried before applying the glue.

[0067] In S2, if the adhesive used is panel adhesive, the suitable bonding temperature is 25±5℃ and the humidity is 55-75%. It must be thoroughly stirred before use. If the room temperature is below 5℃, gelation may occur, affecting its use. In this case, the adhesive can be soaked in hot water at 30℃-50℃ for 20 minutes.

[0068] In S3, one coat of glue is usually sufficient for most wood-based panels. For porous wood-based panels, 2-3 coats are required, and each coat should only be applied after the solvent from the previous coat has completely evaporated. It's best to keep the glue layer as thin as possible, ensuring there is enough glue. Generally, a thinner glue layer results in fewer defects, less shrinkage, and higher bond strength. A thick glue layer will lead to defects such as incomplete drying, poor adhesion, and bubbling. The glue layer thickness should ideally be controlled between 0.08-0.15mm, which corresponds to a glue dosage of 250-350g / m².

[0069] In step S4, the purpose of allowing the solvent to evaporate completely, increasing viscosity and promoting curing. After applying the adhesive, the solvent must evaporate completely to prevent the adhesive layer from becoming sticky or forming bubbles, which would reduce the bonding quality. In this embodiment, the drying time is 10 minutes at 25°C. Once the adhesive layer has formed a dry film, it should be aligned and bonded immediately. The drying time should not be too long, as this may cause the adhesive layer to lose its tackiness and affect the bonding strength.

[0070] When bonding, align the adhesive in the correct position and do not move it back and forth. After bonding, use pressing, hammering, or rolling to remove air and compact the adhesive layer, thereby improving the bonding quality.

[0071] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0072] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A wood board glue layer coating apparatus comprising a work platform (110), characterized in that, Also include: The sliding mounting frame (130) is provided on both sides of the working platform (110), and a sliding groove (140) is formed in the inner side of the sliding mounting frame (130). An air bag pipe (150) is installed inside the sliding groove (140); The glue injection mechanism (300) is slidably installed in the middle of the sliding mounting frame (130), and the glue injection mechanism (300) is used to spray wood glue on the wood board; The brushing mechanism (200) is installed on the side of the glue injection mechanism (300), the brushing mechanism (200) includes a glue coating sliding frame (220) and a glue coating roller (210) installed in the middle of the glue coating sliding frame (220), the glue coating sliding frame (220) is provided with sliding wheels (222) on both sides, the sliding wheels (222) roll in the sliding groove (140), and the sliding wheels (222) are in interference fit with the air bag pipe (150); The air bag pipe (150) is provided as a rubber pipe, a plurality of air pipe separation membranes (151) are arranged inside the air bag pipe (150), the plurality of air pipe separation membranes (151) are arranged at equal intervals, air chambers (152) are formed between two adjacent air pipe separation membranes (151) inside the air bag pipe (150), and air holes (153) are arranged in the middle of the air pipe separation membranes (151). Two adjacent air chambers (152) are communicated through the air holes (153).

2. A wood board glue layer coating apparatus according to claim 1, characterized in that: The working platform (110) is provided with a horizontally placed rectangular table, the end of the working platform (110) is connected with a platform connecting frame (120), the cross section of the platform connecting frame (120) is inverted U-shaped, the other end of the platform connecting frame (120) is connected with the sliding mounting frame (130), the sliding mounting frame (130) is parallel to the working platform (110), and the sliding mounting frame (130) and the working platform (110) are kept apart.

3. A wood board glue layer coating apparatus according to claim 1, characterized in that: Two sliding wheels (222) are arranged on one side of the glue coating sliding frame (220), a horizontal connecting bridge plate (221) is installed on the bottom side of the glue coating sliding frame (220), two pulley shafts (223) are rotatably installed on the outer side of the horizontal connecting bridge plate (221), and the two pulley shafts (223) are connected with the two sliding wheels (222).

4. The wood board glue layer coating apparatus according to claim 1, characterized in that: A cross rod (230) is fixedly installed at the top end of the glue coating sliding frame (220), the cross rod (230) is parallel to the glue coating roller (210), a material supporting horizontal plate (240) is fixedly installed on the front side of the glue coating sliding frame (220), and the glue injection mechanism (300) is installed on the side of the material supporting horizontal plate (240).

5. A wood board glue layer coating apparatus according to claim 4, characterized in that: The glue injection mechanism (300) comprises a glue using pipe (310) and a glue pushing device (320) movably installed inside the glue using pipe (310), the glue using pipe (310) is installed on the upper side of the object supporting horizontal plate (240), the end of the glue using pipe (310) is connected with a first glue injection pipe (340), the side of the object supporting horizontal plate (240) is installed with a second glue injection pipe (350), the first glue injection pipe (340) is connected with the second glue injection pipe (350), the side of the second glue injection pipe (350) is connected with a plurality of third glue injection pipes (360), the plurality of third glue injection pipes (360) are equidistantly arranged, and the plurality of third glue injection pipes (360) are all arranged as downwardly inclined glue outlet pipes.

6. A wood board glue layer coating apparatus according to claim 5, characterized in that: The glue pushing device (320) is arranged as a piston pushing rod, one end of the glue pushing device (320) is arranged as a T-shaped pushing handle, the other end of the glue pushing device (320) is connected with a glue pushing piston (321), and the glue pushing piston (321) is in sliding fit with the inner wall of the glue using pipe (310).

7. A wood board glue layer coating apparatus according to claim 5, wherein: The upper side of the object supporting horizontal plate (240) is installed with a heat preservation pipe (330), the heat preservation pipe (330) is installed outside the glue using pipe (310) and is used for heat preservation of the woodworking glue.

8. A wood board glue layer coating apparatus according to claim 7, characterized in that: The inside of the sliding mounting frame (130) is fixedly installed with a separation long plate (160), the separation long plate (160) is horizontally arranged, the separation long plate (160) is located in the middle of the sliding groove (140), the sliding wheels (222) are in rolling fit with the separation long plate (160), and both ends of the sliding groove (140) are arranged as C-shaped groove ends (180) and a spacing is left between the separation long plate (160) and the C-shaped groove ends (180).

9. A wood board glue line coating process characterized by, The wood board glue layer coating device according to claim 8 comprises the following specific steps: S1, wood board pretreatment: including oil removal, moisture removal, polishing, keeping the surface clean, dry and firm, and placing the pretreated wood board on the work platform (110); S2, glue pretreatment: heating the glue and fully stirring it, pouring the glue into the glue using pipe (310), and continuously heating the glue using the heat preservation pipe (330); S3, glue coating: using the glue coating roller (210) to brush a thin and uniform layer of glue, and moving in the same direction during brushing, lifting the brushing mechanism (200) by the cross rod (230) when the glue coating roller (210) returns, and moving the sliding wheels (222) from the upper side of the separation long plate (160) to the ends of the sliding groove (140); S4, air drying: the air drying time is 5-15 minutes / 25 DEG C, and immediately aligning and bonding when the glue layer is in a dry film state.

Citation Information

Patent Citations

  • Ink-jet printer

    CN103465627A

  • Tile automatic paper cutting and sticking device

    CN106628358A