A wood board edge sealing machine

Abstract

The utility model discloses a kind of wood board edge banding machine, belong to wood board processing equipment technical field, it includes edge banding machine ontology and air purification device.The machine table of edge banding machine ontology contains cabinet body, cabinet door and table board, and table board top surface is equipped with glue pot.Air purification device is composed by air suction component, air purification box and controller.The gas inlet of air suction component is located at one side of glue pot, is connected by suction pipe and is controlled by controller.The air purification box is installed in cabinet body, and lower chamber is equipped with detachable sink filled with alkaline solution, and the spray pipe in the upper part of middle chamber is extracted sink solution by water pump and sprays, and upper chamber is equipped with demister and detachable activated carbon filter in sequence, and top exhaust pipe extends to the outside of cabinet body.The utility model can efficiently collect and purify harmful gas generated in edge banding process, and improve work environment safety.

Description

Technical Field

[0001] This utility model relates to the technical field of wood processing equipment, and in particular to a wood edge banding machine. Background Technology

[0002] A wood panel edge banding machine is a specialized piece of equipment that uses hot melt adhesive to bond edge banding strips to the edges of wood panels, thereby achieving edge protection, structural reinforcement, and aesthetic enhancement. For example... Figure 1 As shown, existing wood edge banding machines generally include a machine base, an edge banding strip feeding mechanism for conveying edge banding strips, an adhesive application mechanism for heating and melting hot melt adhesive and applying it to the edge banding strip and the side of the wood board, a bonding mechanism for pressing the edge banding strip onto the side of the wood board, and a cutting mechanism for cutting off excess edge banding strips, etc. A related structure is exemplified by a wood edge banding machine proposed in Chinese Patent CN 208133205 U. In this machine, the container used by the adhesive application mechanism to heat and melt the hot melt adhesive is a glue pot.

[0003] The odor problem is prominent when the existing wood edge banding machine is in operation. This is mainly due to the irritating odor released by the hot melt adhesive during the high-temperature melting process, which does not meet the occupational health requirements. The components of the irritating odor are mainly acidic substances, followed by neutral substances, and alkaline substances are very little or almost non-existent. Among them, the acidic substances mainly come from the following two types of substances: (1) Tackifier pyrolysis products: Tackifiers commonly used in hot melt adhesives, such as rosin, hydrogenated rosin, and rosin glycerol esters, will decompose or volatilize at high temperatures, releasing rosin acid, fatty acids, etc. These substances are the core reason for the pungent odor, and long-term exposure will cause acidic irritation to the respiratory mucosa. (2) Resin degradation products: Under overheating conditions, the ester groups of the side chains of some resins (such as EVA) may break, producing a small amount of organic acids, which further increases the acidic characteristics of the odor.

[0004] To address the issue of irritating odors from edge banding machines, Chinese patent CN 218535004 U proposes an automatic edge banding device for creative custom furniture that can remove glue odors. This device incorporates a gas purification chamber within the edge banding machine, containing a photocatalytic filter and multiple activated carbon filters to purify the gas drawn in and reduce pollution caused by irritating odors. However, this technical solution primarily relies on the physical adsorption of activated carbon filters and the photocatalytic decomposition of photocatalytic filters. It is suitable for low-volume, low-concentration scenarios, but the filter area and adsorption capacity are limited, leading to rapid saturation at high concentrations. Furthermore, the adsorption and decomposition effects of activated carbon and photocatalytic filters on acidic components (such as rosin acid) are limited, resulting in a low overall removal rate of harmful substances in the gas and thus a problem of poor purification effect. Utility Model Content

[0005] This utility model proposes a wood panel edge banding machine to solve the problem that existing wood panel edge banding machines cannot effectively purify the irritating odors generated during operation.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A wood panel edge banding machine includes an edge banding machine body and an air purification device disposed on the edge banding machine body. The edge banding machine body includes a machine base, the machine base includes a cabinet, a cabinet door disposed on the side of the cabinet, and a table disposed on the top of the cabinet. The top surface of the table is provided with a glue pot for heating and storing hot melt adhesive. The air purification device includes an air intake component, an air purification box, and a controller.

[0008] The air intake assembly includes an air collection port, a suction pipe, and a blower. The air collection port is installed on the platform and located on one side of the glue pot. One end of the suction pipe is connected to the air collection port, and the other end is connected to the air inlet of the blower. The blower is electrically connected to the controller.

[0009] The air purification box includes a box body, a water tank, a spray assembly, a demister, and an activated carbon filter. The box body is installed inside the cabinet, and its interior is arranged from bottom to top with interconnected lower, middle, and upper chambers. The water tank is detachably installed in the lower chamber and contains an alkaline solution. The spray assembly includes a water pump, an inlet hose, a delivery pipe, a spray pipe, and several nozzles. The water pump is installed on the box body and electrically connected to the controller. The water inlet of the water pump is connected to one end of the inlet hose, and the other end of the inlet hose is located inside the water tank. One end of the delivery pipe is connected to the outlet of the water pump, and the other end is connected to the spray pipe. The spray pipe is installed in the upper part of the middle cavity and is horizontally arranged. Several spray nozzles are evenly distributed on the spray pipe and are arranged downwards. The air outlet of the induced draft fan is connected to the lower part of the middle cavity. The demister and the activated carbon filter are both installed in the upper cavity, and the demister is located below the activated carbon filter. The activated carbon filter is detachably connected to the housing. An exhaust pipe is connected to the top of the upper cavity and extends to the outside of the cabinet.

[0010] Furthermore, a support is provided on the platform, and the air collection port is hinged to the support via a hinge with the axis of the hinge being horizontally set. The suction tube is a flexible tube.

[0011] Furthermore, the exhaust fan is installed inside the cabinet, and the middle of the suction pipe is movably inserted through the platform.

[0012] Furthermore, the lower chamber and the middle chamber are separated by a conical liquid collecting funnel, and the middle chamber and the upper chamber are separated by a partition with vent holes.

[0013] Furthermore, the water pump is installed on the outside of the housing, and the water inlet hose movably passes through the housing and extends into the water tank.

[0014] Furthermore, the box body has a first opening corresponding to the lower cavity, the first opening facing the cabinet door, and the water tank is inserted into or removed from the lower cavity through the first opening.

[0015] Furthermore, the housing has a second opening corresponding to the upper cavity, the second opening facing the cabinet door, and the activated carbon filter is inserted into or removed from the upper cavity through the second opening.

[0016] Furthermore, the activated carbon filter includes an outer frame and a multi-layer activated carbon filter screen disposed within the outer frame.

[0017] Furthermore, a gravity ball is installed at the end of the water inlet hose away from the water pump, and a pH measurement sensor is installed on the gravity ball. The pH measurement sensor is electrically connected to the controller, and the controller is electrically connected to an alarm.

[0018] Furthermore, the controller is a microcontroller, and the alarm is a buzzer, both of which are installed inside the cabinet.

[0019] By adopting the above technical solution, this utility model has the following beneficial effects:

[0020] 1. This utility model sets up a gas collection port on one side of the glue pot, and actively draws in air with an induced draft fan to deliver irritating gases to an air purification box. The air purification box uses alkaline solution spraying treatment, which can specifically neutralize acidic substances (such as rosin acid, fatty acids, etc.) in the gas. Compared with existing physical adsorption and photocatalytic decomposition methods, it has a more significant effect on removing acidic harmful components, improves the thoroughness of gas purification, prevents harmful gases from spreading to the working environment, and effectively improves the quality of the working environment.

[0021] 2. This utility model adopts a three-stage purification structure of "spray neutralization + demisting + activated carbon adsorption". First, the core acidic substances are neutralized by spraying, then the water vapor in the gas is removed by demisting, and finally the residual harmful substances are adsorbed by the activated carbon filter. The multiple purifications work together to greatly improve the overall removal rate of harmful gases. The purification effect is better than the existing single or simple combination purification schemes.

[0022] 3. Both the water tank and activated carbon filter of this utility model adopt a detachable design, which makes it convenient for operators to replace the alkaline solution and activated carbon filter regularly, reducing the difficulty and cost of equipment maintenance, while avoiding the problem of decreased purification efficiency due to alkaline solution and filter saturation, and ensuring long-term stable operation of the equipment.

[0023] 4. This utility model integrates the air purification box into the cabinet of the edge banding machine body. The structure is compact and does not require a lot of extra space. The exhaust pipe extends to the outside of the cabinet to ensure the safe discharge of purified gas, taking into account both the practicality of the equipment and the space utilization rate.

[0024] 5. This utility model is equipped with a pH measurement sensor, which is located in the alkaline solution. It monitors the pH value change of the alkaline solution in real time and feeds the data back to the controller. When the pH value of the solution is lower than the preset threshold, the controller controls the alarm to perform an alarm action, promptly reminding the operator to replace the solution. This avoids incomplete neutralization of acidic substances due to insufficient alkalinity and further ensures the stability of the gas purification effect. Attached Figure Description

[0025] Figure 1 This is a top view of a wood panel edge banding machine in the prior art;

[0026] Figure 2 This is a top view of the wood panel edge banding machine proposed in Embodiment 1 of this utility model;

[0027] Figure 3 This is a schematic diagram of the composition and structure of the air purification device proposed in Embodiment 1 of this utility model;

[0028] Figure 4 This is a schematic diagram of the air purification box body proposed in Embodiment 1 of this utility model;

[0029] Figure 5 This is a schematic diagram of the installation of the pH measurement sensor proposed in Embodiment 2 of this utility model;

[0030] The components in the attached diagram are labeled as follows: 1-Machine base, 2-Edge sealing strip feeding mechanism, 3-Edge sealing strip, 4-Glue application mechanism, 5-Glue pot, 6-Laying mechanism, 7-Cutting mechanism, 8-Cabinet, 9-Cabinet door, 10-Tablet, 11-Air purification device, 12-Bracket, 13-Hinge, 14-Air collection port, 15-Suction pipe, 16-Exhaust fan, 17-Box body, 18-Lower chamber, 19-Conical liquid collection funnel, 2 0-Middle chamber, 21-Baffle, 22-Upper chamber, 23-Water tank, 24-First opening, 25-Alkaline solution, 26-Water pump, 27-Inlet hose, 28-Transfer pipe, 29-Spray pipe, 30-Spray head, 31-Demister, 32-Activated carbon filter, 33-Second opening, 34-Exhaust pipe, 35-Controller, 36-Gravity ball, 37-pH measuring sensor, 38-Irritating gas. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] like Figure 1 As shown, an existing wood panel edge banding machine generally includes a machine base 1, an edge banding strip feeding mechanism 2 for conveying edge banding strips 3, an adhesive application mechanism 4 for heating and melting hot melt adhesive and applying it to the edge banding strips 3 and the side of the wood panel, a bonding mechanism 6 for pressing the edge banding strips 3 onto the side of the wood panel, and a cutting mechanism 7 for cutting off excess edge banding strips 3, etc.

[0033] Example 1

[0034] like Figure 2-4 As shown, based on existing technology, this utility model proposes a wood panel edge banding machine, including an edge banding machine body and an air purification device 11 disposed on the edge banding machine body. The edge banding machine body includes a machine base 1, which includes a cabinet 8, a cabinet door 9 disposed on the side of the cabinet 8, and a table 10 disposed on the top of the cabinet 8. The top surface of the table 10 is provided with a glue pot 5 for heating and storing hot melt adhesive. The above technical features are all existing technology. The air purification device 11 includes an air intake component, an air purification box, and a controller 35.

[0035] The air intake assembly includes an air collection port 14, an intake pipe 15, and an exhaust fan 16. The air collection port 14 is mounted on the platform 10 and located on one side of the glue pot 5. Specifically, a bracket 12 is provided on the platform 10. The air collection port 14 is hinged to the bracket 12 via a hinge 13. The axis of the hinge 13 is horizontally set, allowing the air collection port 14 to be angled. By adjusting the opening orientation, it can be precisely aligned with the gas release source of the glue pot to improve collection efficiency.

[0036] The suction pipe 15 is a flexible tube, with one end connected to the air collection port 14 and the other end connected to the air inlet of the induced draft fan 16. The induced draft fan 16 is electrically connected to the controller 35. The induced draft fan 16 is installed inside the cabinet 8, and the middle of the suction pipe 15 is movably inserted through the platform 10.

[0037] The air purification box includes a housing 17, a water tank 23, a spray assembly, a demister 31, and an activated carbon filter 32. The housing 17 is installed inside a cabinet 8, and its interior is arranged from bottom to top as a lower chamber 18, a middle chamber 20, and an upper chamber 22 that are interconnected. Specifically, the lower chamber 18 and the middle chamber 20 are separated by a conical liquid collection funnel 19, and the middle chamber 20 and the upper chamber 22 are separated by a partition 21, which has ventilation holes.

[0038] The water tank 23 is detachably installed in the lower chamber 18 and contains an alkaline solution 25, such as sodium hydroxide solution, potassium hydroxide solution, or sodium bicarbonate solution. Specifically, the cabinet 17 has a first opening 24 corresponding to the lower chamber, facing the cabinet door 9. The water tank 23 is inserted into or removed from the lower chamber 18 through the first opening 24. A guide rail can be installed in the lower chamber to cooperate with the water tank 23, working similarly to a drawer. The water tank 23 adopts a detachable design, which facilitates the operator to regularly replace the alkaline solution 25, reducing the difficulty and cost of equipment maintenance, and avoiding the problem of decreased purification efficiency due to saturation of the alkaline solution 25. The water tank 23 can be disassembled and assembled after opening the cabinet door 9.

[0039] The spray assembly includes a water pump 26, an inlet hose 27, a delivery pipe 28, a spray pipe 29, and several spray nozzles 30. The water pump 26 is mounted on the housing 17 and electrically connected to the controller 35. The inlet of the water pump 26 is connected to one end of the inlet hose 27, and the other end of the inlet hose 27 is located inside the water tank 23. Specifically, the water pump 26 is mounted on the outside of the housing 17, and the inlet hose 27 movably passes through the housing 17 and extends into the water tank 23. When it is necessary to disassemble the water tank 23, simply pull the inlet hose 27 upwards to move the end away from the water pump 26 to the top of the water tank 23, detaching it from the internal space of the water tank 23. At this time, the water tank 23 can be directly removed from the lower chamber 18. One end of the delivery pipe 28 is connected to the outlet of the water pump 26, and the other end is connected to the spray pipe 29. The spray pipe 29 is installed in the upper part of the central cavity and is set horizontally. Several nozzles 30 are evenly distributed on the spray pipe 29 and are set downwards. The air outlet of the induced draft fan 16 is connected to the lower part of the central cavity 20, and the collected irritating gas 38 is introduced into the central cavity 20 for purification.

[0040] Both the demister 31 and the activated carbon filter 32 are installed in the upper chamber 22, with the demister 31 located below the activated carbon filter 32. The demister 31 is a standard feature of existing spray towers, physically intercepting water mist carried in the sprayed gas to prevent it from entering the activated carbon filter 32 and causing it to become damp. The activated carbon filter 32 is detachably connected to the housing 17. Specifically, the housing 17 has a second opening 33 corresponding to the upper chamber, facing the cabinet door 9. The activated carbon filter 32 is inserted into or removed from the upper chamber 22 through the second opening 33. A guide rail can be installed in the upper chamber to cooperate with the activated carbon filter 32, operating similarly to a drawer. The activated carbon filter features a detachable design, facilitating regular replacement by operators, reducing equipment maintenance difficulty and costs, and preventing a decrease in purification efficiency due to filter saturation, ensuring long-term stable operation of the equipment. The activated carbon filter 32 includes an outer frame and multiple layers of activated carbon filter screens within the frame, providing multi-layer filtration for better filtration performance. An exhaust pipe 34 is connected to the top of the upper chamber 22, and the exhaust pipe 34 extends to the outside of the cabinet 8.

[0041] The working principle of this utility model is as follows:

[0042] When the edge banding machine starts and the glue pot 5 heats up, releasing irritating gas 38 containing acidic substances, the controller 35 triggers the suction component to operate: the exhaust fan 16 runs to generate negative pressure, drawing the gas into the suction pipe 15 through the gas collection port 14 on one side of the glue pot 5 on the platform 10, and then delivering it to the air purification box inside the cabinet 8; the gas first enters the central chamber 20 of the purification box, at which time the controller 35 simultaneously starts the water pump 26, which draws alkaline solution 25 from the water tank 23 through the water inlet hose 27, pumps it through the delivery pipe 28 to the spray pipe 29 at the top of the central chamber 20, and then sprays it downwards from the evenly distributed nozzles 30, forming an alkaline liquid curtain, and the conical liquid collection funnel 19... With a top-wide, bottom-narrow structure, the system can better collect the alkaline solution 25 sprayed from the spray and guide it into the water tank 23. When the gas passes through the liquid curtain, the acidic substances (such as rosin acid and fatty acids) in it undergo a neutralization reaction with the alkaline solution 25, initially removing the core harmful components. The neutralized gas continues to rise into the upper chamber 22, where it first passes through the demister 31 to intercept the water mist carried in the gas, preventing it from becoming damp and affecting the subsequent adsorption effect. Then, the dried gas passes through a detachable activated carbon filter, where residual trace amounts of harmful gases are physically adsorbed by the activated carbon. Finally, the purified gas is safely discharged through the exhaust pipe 34 extending from the top of the upper chamber 22 to the outside of the cabinet 8. This utility model centrally controls the induced draft fan 16 and the water pump 26 through the controller 35, which can flexibly adjust the gas intake and spray intensity according to the working status of the edge banding machine, adapting to the gas purification needs under different working conditions and improving the flexibility and intelligence level of equipment operation.

[0043] This invention employs a three-stage purification structure: spray neutralization, demisting, and activated carbon adsorption. First, spraying neutralizes the core acidic substances; then, demisting removes moisture from the gas; and finally, activated carbon adsorbs residual harmful substances. This multi-stage purification works synergistically, significantly improving the overall removal rate of harmful gases, resulting in a purification effect superior to existing single or simple combination purification solutions. Furthermore, this invention integrates the air purification box into the cabinet 8 of the edge-sealing machine body, resulting in a compact structure that requires minimal additional space. The exhaust pipe 34 extends to the outside of the cabinet 8, ensuring safe emission of purified gas, thus balancing equipment practicality and space utilization.

[0044] Example 2

[0045] like Figure 5 As shown, based on Embodiment 1, in this embodiment, a gravity ball 36 is installed at the end of the inlet hose 27 furthest from the water pump 26. A pH measurement sensor 37 is installed on the gravity ball 36, and the pH measurement sensor 37 is electrically connected to the controller 35. The controller 35 is electrically connected to an alarm. The controller 35 is a microcontroller, and the alarm is a buzzer; both are installed inside the cabinet 8. The controller 35 is an STM32F103C8T6.

[0046] In this invention, the gravity ball 36 ensures that the water inlet end of the water inlet hose 27 and the pH measuring sensor 37 are always below the liquid surface. The pH measuring sensor 37 monitors the pH value change of the alkaline solution 25 in real time and feeds the data back to the controller 35. When the pH value of the solution is lower than the preset threshold, the controller 35 controls the alarm to perform an alarm action, promptly reminding the operator to replace the solution, avoiding incomplete neutralization of acidic substances due to insufficient alkalinity, and further ensuring the stability of the gas purification effect.

[0047] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A wood panel edge banding machine, comprising an edge banding machine body and an air purification device disposed on the edge banding machine body, wherein the edge banding machine body includes a machine base, the machine base includes a cabinet, a cabinet door disposed on the side of the cabinet, and a platform disposed on the top of the cabinet, wherein a glue pot for heating and storing hot melt adhesive is disposed on the top surface of the platform, characterized in that: The air purification device includes an air intake assembly, an air purification chamber, and a controller; The air intake assembly includes an air collection port, a suction pipe, and a blower. The air collection port is installed on the platform and located on one side of the glue pot. One end of the suction pipe is connected to the air collection port, and the other end is connected to the air inlet of the blower. The blower is electrically connected to the controller. The air purification box includes a box body, a water tank, a spray assembly, a demister, and an activated carbon filter. The box body is installed inside the cabinet, and its interior is arranged from bottom to top with interconnected lower, middle, and upper chambers. The water tank is detachably installed in the lower chamber and contains an alkaline solution. The spray assembly includes a water pump, an inlet hose, a delivery pipe, a spray pipe, and several nozzles. The water pump is installed on the box body and electrically connected to the controller. The water inlet of the water pump is connected to one end of the inlet hose, and the other end of the inlet hose is located inside the water tank. One end of the delivery pipe is connected to the outlet of the water pump, and the other end is connected to the spray pipe. The spray pipe is installed in the upper part of the middle chamber and is horizontally arranged. Several spray nozzles are evenly distributed on the spray pipe and are arranged downwards. The air outlet of the induced draft fan is connected to the lower part of the middle chamber. The demister and the activated carbon filter are both installed in the upper chamber, and the demister is located below the activated carbon filter. The activated carbon filter is detachably connected to the housing. An exhaust pipe is connected to the top of the upper chamber and extends to the outside of the cabinet.

2. The wood panel edge banding machine according to claim 1, characterized in that: The platform is equipped with a support, and the air collection port is hinged to the support via a hinge. The axis of the hinge is horizontal, and the suction tube is a flexible tube.

3. The wood panel edge banding machine according to claim 1, characterized in that: The exhaust fan is installed inside the cabinet, and the suction pipe passes through the platform in the middle.

4. The wood panel edge banding machine according to claim 1, characterized in that: The lower chamber and the middle chamber are separated by a conical liquid collection funnel, and the middle chamber and the upper chamber are separated by a partition with vent holes.

5. The wood panel edge banding machine according to claim 1, characterized in that: The water pump is installed on the outside of the housing, and the water inlet hose movably passes through the housing and extends into the water tank.

6. The wood panel edge banding machine according to claim 1, characterized in that: The cabinet has a first opening in the lower cavity, which faces the cabinet door. The water tank is inserted into or removed from the lower cavity through the first opening.

7. The wood panel edge banding machine according to claim 1, characterized in that: The box body has a second opening corresponding to the upper cavity, and the second opening faces the cabinet door. The activated carbon filter is inserted into or removed from the upper cavity through the second opening.

8. The wood panel edge banding machine according to claim 1, characterized in that: The activated carbon filter includes an outer frame and a multi-layer activated carbon filter screen disposed within the outer frame.

9. A wood panel edge banding machine according to claim 1, characterized in that: A gravity ball is installed at the end of the water inlet hose away from the water pump. A pH measuring sensor is installed on the gravity ball. The pH measuring sensor is electrically connected to the controller. An alarm is electrically connected to the controller.

10. A wood panel edge banding machine according to claim 9, characterized in that: The controller is a microcontroller, and the alarm is a buzzer; both are installed inside the cabinet.

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