A uniform glue application device for wood furniture processing

Abstract

This utility model discloses a uniform glue application device for wood furniture processing, relating to the technical field of glue application devices. It includes a pneumatic glue applicator, a brush handle, and a brush head assembly. The brush handle is connected to the glue outlet of the pneumatic glue applicator via a flexible hose. The brush head assembly is installed at the glue outlet of the brush handle. The brush head assembly includes a brush head base, a insertion hole, a glue tank, a brush base, a through groove, brush bristles, and a straight groove-shaped guide ring. This utility model, by setting a brush head assembly with a straight groove-shaped guide ring, guides the glue to the middle of the brush bristles, bringing the glue closer to the bristle tips. The flowing glue can be applied to the board surface promptly, preventing the glue from staying at the bristle tips for too long, ensuring efficient glue flow on the bristle surface. Furthermore, there is no glue at the bristle roots. Compared to traditional structures where glue flows downwards from the bristle roots, this effectively avoids residual glue condensation at the bristle roots, preventing glue blockage during downward flow.

Description

Technical Field

[0001] This utility model relates to the field of glue application device technology, specifically a uniform glue application device for wood furniture processing. Background Technology

[0002] In wood furniture processing, gluing equipment is used to precisely and evenly apply adhesives (such as white glue, hot melt glue, PUR glue, etc.) to the bonding surfaces of wood or engineered wood products (such as particleboard and medium-density fiberboard) to facilitate subsequent assembly and bonding. There are many types of gluing equipment used in wood furniture processing. Among them, the portable pneumatic glue applicator is a handheld gluing device that supports quick brush head changes. It is mainly used for manual gluing operations on complex shapes such as curved surfaces and edges of furniture. The pneumatic glue applicator uses compressed air as a power source, driving the adhesive from a closed container to the brush head through air pressure, achieving continuous and controllable gluing operations. The core process includes: 1. Pneumatic glue supply: Compressed air (usually 0.2-0.6MPa) is injected into the sealant tank to create a stable pressure on the glue, which then pushes the glue through the pipeline for output; 2. Flow control: The flow rate of the adhesive can be adjusted by a needle valve or knob, such as the combination of the coarse adjustment knob and the fine adjustment button of a pen-type controller, to achieve precise control of the dispensing volume; 3. Brush head coating: The adhesive is guided through the internal channel of the brush handle to the root of the bristles, and after being evenly soaked, it is applied to the surface of the workpiece.

[0003] In existing portable pneumatic glue applicators, the glue flows through the internal channel of the brush handle to the base of the bristles and then flows downwards. However, the base of the bristles does not come into contact with the workpiece surface when applying the glue, which results in a large amount of residue at the base of the bristles. After working for a period of time, this residual glue tends to solidify, causing the glue to flow downwards and become blocked, thus affecting subsequent glue application operations. Based on this, a uniform glue application device for wood furniture processing is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a uniform glue application device for processing wooden furniture in order to solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a uniform glue application device for wood furniture processing, comprising a pneumatic glue applicator, a brush handle, and a brush head assembly. The brush handle is connected to the glue outlet of the pneumatic glue applicator via a flexible hose. The brush head assembly is installed at the glue outlet of the brush handle. The brush head assembly includes a brush head base, a insertion hole, a glue tank, a brush base, a through groove, brush bristles, and a straight groove-shaped guide ring. The insertion hole and the glue tank are respectively opened at the upper and lower ends of the brush head base, and the insertion hole is connected to the glue tank; The through slot is opened at the bottom of the inner wall of the brush holder. The bristles are fixed at the bottom of the through slot and are staggered with the through slot. The straight groove type flow guide ring is installed inside the through slot and protrudes to the bottom of the brush holder and is close to the middle of the bristles. The brush holder is installed at the bottom of the brush head holder. The brush head holder is connected to the glue outlet of the brush handle via a plug-in hole. The glue outlet, glue tank, and straight groove guide ring are interconnected and used to guide the glue to the middle of the brush bristles.

[0006] As a further improvement of this utility model: multiple sets of through slots and brush bristles are provided, and the multiple sets of through slots and brush bristles are distributed alternately, and the number of straight groove-type guide rings matches the number of through slots.

[0007] As a further embodiment of this utility model: a rectangular mating groove is formed on the top outer side of the brush head seat, and the brush seat is sleeved on the outside of the rectangular mating groove and has an interference fit with the rectangular mating groove.

[0008] As a further improvement of this utility model: a sealing gasket is fixed to the top of the plurality of straight groove type flow guide rubber rings, the sealing gasket has a straight groove opening that communicates with the straight groove type flow guide rubber ring, and the sealing gasket is installed inside the brush holder and is tightly fitted to the bottom of the brush head holder.

[0009] As a further embodiment of this utility model: the brush head base, insertion hole, glue tank, and rectangular docking groove are integrally formed from plastic material through injection molding process; the litigation brush base and through groove are integrally formed from plastic material through injection molding process and form a wrapping and fixing of the brush bristle roots. The sealing gasket and the straight groove type flow guide ring are integrally formed from rubber material through injection molding.

[0010] Compared with the prior art, the beneficial effects of this utility model are: By incorporating a brush head assembly with a straight-groove guide ring, the adhesive is directed to the middle of the bristles, bringing it closer to the bristle tips. This allows the adhesive to be applied to the board surface promptly, preventing it from lingering at the bristle tips and ensuring efficient flow. Furthermore, there is no adhesive at the bristle roots. Compared to traditional structures where adhesive flows downwards from the bristle roots, this effectively prevents residual adhesive from accumulating at the bristle roots and causing blockages in the downward flow of adhesive. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram showing the disassembled brush head assembly and brush handle of this utility model; Figure 3This is a structural cross-sectional view of the brush head assembly of this utility model; Figure 4 This is a cross-sectional view of the brush head assembly of this utility model.

[0012] In the diagram: 1. Pneumatic glue applicator; 2. Brush handle; 3. Brush head assembly; 301. Brush head holder; 302. Insertion hole; 303. Glue tank; 304. Rectangular mating groove; 305. Brush holder; 306. Through slot; 307. Brush bristles; 308. Sealing gasket; 309. Straight groove type guide ring. Detailed Implementation

[0013] 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.

[0014] Please see Figures 1-4 In this embodiment of the present invention, a uniform glue application device for processing wooden furniture includes a pneumatic glue applicator 1, a brush handle 2, and a brush head assembly 3. The brush handle 2 is connected to the glue outlet of the container of the pneumatic glue applicator 1 through a hose. The brush head assembly 3 is installed at the glue outlet of the brush handle 2. The brush head assembly 3 includes a brush head seat 301, a plug hole 302, a glue tank 303, a brush seat 305, a through groove 306, brush bristles 307, and a straight groove type guide rubber ring 309. The insertion hole 302 and the glue tank 303 are respectively opened at the upper and lower ends of the brush head base 301, and the insertion hole 302 is connected to the glue tank 303; A through slot 306 is formed at the bottom of the inner wall of the brush holder 305. The bristles 307 are fixed at the bottom of the through slot 306 and are staggered with the through slot 306. A straight groove-shaped guide ring 309 is installed inside the through slot 306 and protrudes to the bottom of the brush holder 305 and is close to the middle of the bristles 307. The brush holder 305 is installed at the bottom of the brush head holder 301. The brush head holder 301 is connected to the glue outlet of the brush handle 2 through the insertion hole 302. The glue outlet, glue tank 303, and straight groove type guide ring 309 of the brush handle 2 are connected to each other to guide the glue to the middle position of the bristles 307. Multiple sets of through slots 306 and bristles 307 are provided, and the multiple sets of through slots 306 and bristles 307 are distributed alternately. The number of straight groove type guide rings 309 matches the number of through slots 306.

[0015] In this embodiment, it should be noted that the pneumatic glue applicator 1 is a common type of portable pneumatic glue applicator on the market. The brush handle 2 is equipped with a trigger mechanism (trigger / pressure plate: lever-type mechanical structure, which pushes the pin to open the air valve when pressed). This structure is the existing structure of the existing portable pneumatic glue applicator. Therefore, the detailed structure of the pneumatic glue applicator 1 and the brush handle 2 will not be described in detail here. When the pneumatic glue applicator 1 is in use, its main air inlet is connected to an external compressed air source through a hose. When the pneumatic glue applicator 1 is running, it delivers the glue liquid inside the container to the internal channel of the brush handle 2. By pressing the trigger mechanism on the brush handle 2, the internal pipeline of the brush handle 2 can be connected. At this time, the glue liquid is delivered to the glue tank 303 inside the brush head seat 301. Then, it is guided to the middle position of the bristles 307 through multiple straight groove type guide rubber rings 309. At this time, the surface of the wooden furniture board is coated by brushing the bristles 307 to realize the glue application operation. The adhesive is guided to the middle of the bristles 307 by the straight groove-type guide ring 309, so that the adhesive is closer to the front end of the bristles 307. The adhesive can be applied to the surface of the board in time without staying at the front end of the bristles 307 for too long. This ensures the efficient flow of adhesive on the surface of the bristles 307. In addition, there is no adhesive at the root area of ​​the bristles 307. Compared with the traditional structure in which the adhesive flows downward from the root of the bristles, this effectively avoids the solidification of residual adhesive at the root of the bristles, which would cause the adhesive to flow downward and block the flow.

[0016] Please refer to this carefully. Figures 1-3 A rectangular mating groove 304 is formed on the outer side of the top of the brush head holder 301, and the brush holder 305 is sleeved on the outer side of the rectangular mating groove 304 and has an interference fit with the rectangular mating groove 304. A sealing gasket 308 is fixed to the top of multiple straight groove type flow guide rubber rings 309. The sealing gasket 308 has a straight groove that communicates with the straight groove type flow guide rubber rings 309. The sealing gasket 308 is installed inside the brush holder 305 and is tightly fitted to the bottom of the brush head holder 301. The brush head holder 301, the insertion hole 302, the glue tank 303, and the rectangular docking groove 304 are integrally formed from plastic material through injection molding process. The brush holder 305 and the through groove 306 are integrally formed from plastic material through injection molding process and wrap and fix the roots of the brush bristles 307. The sealing gasket 308 and the straight groove type flow guide ring 309 are integrally molded from rubber material through injection molding process.

[0017] In this embodiment: the sealing gasket 308 can maintain a good seal between the brush head seat 301 and the brush seat 305. In addition, the straight groove type guide ring 309 made of rubber will not cause hard scratches to the surface of the plate. The brush head holder 301, brush holder 305, sealing gasket 308, and straight groove guide ring 309 are detachable for easy cleaning and reuse. The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A uniform glue application device for processing wooden furniture, comprising a pneumatic glue applicator (1), a brush handle (2), and a brush head assembly (3), wherein the brush handle (2) is connected to the glue outlet of the pneumatic glue applicator (1) via a flexible hose, and the brush head assembly (3) is installed at the glue outlet of the brush handle (2), characterized in that, The brush head assembly (3) includes a brush head base (301), a plug hole (302), a glue tank (303), a brush base (305), a through slot (306), brush bristles (307), and a straight groove type guide rubber ring (309). The insertion hole (302) and the glue tank (303) are respectively opened at the upper and lower ends of the brush head base (301), and the insertion hole (302) and the glue tank (303) are connected; The through slot (306) is opened at the bottom of the inner wall of the brush holder (305). The bristles (307) are fixed at the bottom of the through slot (306) and are staggered with the through slot (306). The straight groove type flow guide ring (309) is installed inside the through slot (306) and protrudes to the bottom of the brush holder (305) and is close to the middle of the bristles (307). The brush holder (305) is installed at the bottom of the brush head holder (301). The brush head holder (301) is connected to the glue outlet of the brush handle (2) through the insertion hole (302). The glue outlet, glue tank (303), and straight groove type guide ring (309) of the brush handle (2) are connected to each other and are used to guide the glue to the middle position of the brush bristles (307).

2. The uniform glue application device for processing wooden furniture according to claim 1, characterized in that, The through slots (306) and brush bristles (307) are provided in multiple sets, and the multiple sets of through slots (306) and brush bristles (307) are distributed in an alternating manner. The number of straight groove type flow guide rings (309) matches the number of through slots (306).

3. The uniform glue application device for processing wooden furniture according to claim 2, characterized in that, The top outer side of the brush head holder (301) is formed with a rectangular docking groove (304), and the brush holder (305) is sleeved on the outside of the rectangular docking groove (304) and has an interference fit with the rectangular docking groove (304).

4. The uniform glue application device for processing wooden furniture according to claim 3, characterized in that, A sealing gasket (308) is fixed to the top of each of the multiple straight groove type flow guide rings (309). The sealing gasket (308) has a straight groove that communicates with the straight groove type flow guide ring (309). The sealing gasket (308) is installed inside the brush holder (305) and is tightly fitted to the bottom of the brush head holder (301).

5. The uniform glue application device for processing wooden furniture according to claim 4, characterized in that, The brush head holder (301), insertion hole (302), glue tank (303), and rectangular docking groove (304) are integrally formed from plastic material through injection molding process. The brush holder (305) and through groove (306) are integrally formed from plastic material through injection molding process and wrap and fix the root of the brush bristles (307). The sealing gasket (308) and the straight groove type flow guide ring (309) are integrally formed from rubber material through injection molding.

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