A gluing device for plywood production

Abstract

A gluing device for plywood production, relating to the field of plywood manufacturing, includes a gluing cylinder assembly and a conveying assembly. The gluing cylinder assembly includes an inner cylinder wall, an outer cylinder wall, and a one-way glue nozzle. The outer cylinder wall is made of an elastic material, and the one-way glue nozzle is disposed through the outer surface of the outer cylinder wall. The conveying assembly includes a conveying support frame and a conveyor belt, with a telescopic arm connecting the gluing cylinder assembly and the conveying support frame. This invention utilizes the cooperation between the gluing cylinder assembly and the conveying assembly. The conveyor belt in the conveying assembly can be used for continuous transport during the gluing process of the plywood, and also provides support during the gluing process. During the gluing process, the telescopic arm controls different deformations of the outer cylinder wall. During deformation, glue between the inner and outer cylinder walls is extruded through the one-way glue nozzle, and the glue output is positively correlated with the deformation of the outer cylinder wall, thereby allowing for real-time adjustment of the glue output to adapt to various gluing conditions.

Description

Technical Field

[0001] This utility model relates to the field of plywood production technology, and in particular to a glue application device for plywood production. Background Technology

[0002] The gluing process is a crucial step in plywood production, where adhesive is evenly applied to the veneer surface using a gluing device. Its quality directly affects the bonding strength and flatness of the plywood; insufficient glue can lead to delamination, while excessive glue results in waste and pollution.

[0003] In plywood production, the uniformity of glue application and the control of glue quantity directly affect the quality of the plywood and production costs. Existing glue application equipment mostly uses a fixed glue dispensing structure, which cannot adjust the glue dispensing amount in real time according to the thickness, material, or application speed of the plywood. For example, when the production line speed changes or different plywood specifications are switched, traditional equipment, lacking a dynamic adjustment mechanism, is prone to problems such as uneven glue application (insufficient glue in some areas leading to weak adhesion) or excessive glue application (glue accumulation, waste, and increased curing time). Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to provide a glue application device for plywood production, which can adjust the glue output in real time and adapt to glue application operations under various working conditions.

[0006] To achieve the above objectives, this utility model proposes a glue-applying device for plywood production, comprising a glue-applying cylinder assembly and a conveying assembly. The glue-applying cylinder assembly is positioned above the conveying assembly and includes an inner cylinder wall, an outer cylinder wall, and a one-way glue outlet. A glue-applying cylinder support is positioned above the conveying assembly. The inner cylinder wall is rotatably mounted on the glue-applying cylinder support, and the outer cylinder wall is sleeved outside the inner cylinder wall. The outer cylinder wall is made of an elastic material, and the one-way glue outlet penetrates the outer surface of the outer cylinder wall. The conveying assembly includes a conveying support frame and a conveyor belt. The conveying support frame is positioned at the bottom of the glue-applying cylinder support frame, and the conveyor belt is mounted on the conveying support frame. A telescopic arm is provided between the glue-applying cylinder support frame and the conveying support frame.

[0007] Furthermore, multiple storage capsules are provided between the outer cylinder wall and the inner cylinder wall, and adjacent storage capsules are separated from each other by a buffer partition made of elastic material.

[0008] Furthermore, a one-way glue feeding nozzle is provided through the inner cylinder wall. The output end of the one-way glue feeding nozzle is connected to the inside of the storage capsule, the glue inlet end of the one-way glue outlet nozzle is connected to the inside of the storage capsule, a branch glue tube is provided at the inlet end of the one-way glue feeding nozzle, and a main glue tube is provided at the inlet end of the branch glue tube.

[0009] Furthermore, the glue-applying cylinder support is provided with a glue supply assembly, which includes a glue box and a glue pump. The glue box is located at the top of the glue-applying cylinder support, and the glue pump is located at the output end of the glue box. The output end of the glue pump is provided with a glue delivery pipe, and the glue delivery pipe is connected to the main glue pipe by a sealed bearing.

[0010] Furthermore, the outer surface of the outer cylinder wall is provided with an adhesive coating surface, which is made of porous foam material and has a detachable structure.

[0011] Furthermore, the glue-applying cylinder assembly is provided with cutting blades at both ends, and a glue-applying cylinder drive motor for driving its rotation is provided at one end of the glue-applying cylinder assembly.

[0012] Furthermore, the transmission support frame is provided with two transmission rollers, the transmission belt is sleeved on the outside of the transmission rollers, a transmission belt support plate is provided between the two transmission rollers, and the transmission support frame is also provided with a transmission drive motor for driving the transmission rollers to rotate.

[0013] Beneficial effects: This utility model uses a glue-applying cylinder assembly and a transmission assembly to work together. The transmission belt in the transmission assembly can be used for continuous transmission during the glue-applying process of plywood and also provides support during the glue-applying process. During the glue-applying process of plywood, the extension and retraction of the telescopic arm controls the different deformations of the outer cylinder wall. During the deformation process, the glue between the inner cylinder wall and the outer cylinder wall is squeezed out through the one-way glue nozzle. At this time, the glue output is positively correlated with the extrusion deformation of the outer cylinder wall, thereby adjusting the glue output in real time and adapting to glue-applying operations under multiple working conditions.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the structure of an adhesive applicator for plywood production according to an embodiment of the present invention.

[0017] Figure 2 This is a partial front cross-sectional view of an adhesive applicator for plywood production according to an embodiment of the present invention;

[0018] Figure 3 This is a cross-sectional view of the glue-applying cylinder assembly in a glue-applying apparatus for plywood production according to an embodiment of the present invention.

[0019] As shown in the figure: 1. Glue supply assembly; 11. Glue nozzle; 12. Glue pump; 13. Glue hose; 14. Glue box; 21. Glue applicator support; 22. Glue applicator drive motor; 23. Telescopic arm; 3. Glue applicator assembly; 31. Cutting blade; 32. Glue application surface; 33. Outer cylinder wall; 34. Storage capsule; 341. One-way glue outlet; 342. One-way glue delivery nozzle; 343. Buffer baffle; 35. Inner cylinder wall; 351. Branch hose; 36. Main hose; 37. Sealed bearing; 4. Conveyor assembly; 41. Conveyor drive motor; 42. Conveyor support frame; 43. Conveyor belt; 44. Conveyor roller; 45. Conveyor belt support plate. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0021] The following description, in conjunction with the accompanying drawings, describes an adhesive applicator for plywood production according to an embodiment of the present invention.

[0022] like Figures 1-3 As shown, the glue-applying device for plywood production provided in this embodiment of the present invention includes a glue-applying cylinder assembly 3 and a transmission assembly 4. The glue-applying cylinder assembly 3 is disposed above the transmission assembly 4. The glue-applying cylinder assembly 3 includes an inner cylinder wall 35, an outer cylinder wall 33 and a one-way glue outlet 341. A glue-applying cylinder support 21 is disposed above the transmission assembly 4. The inner cylinder wall 35 is rotatably disposed on the glue-applying cylinder support 21. The outer cylinder wall 33 is sleeved on the outside of the inner cylinder wall 35. The outer cylinder wall 33 is made of elastic material. The one-way glue outlet 341 is disposed through the outer surface of the outer cylinder wall 33.

[0023] The transmission component 4 includes a transmission support frame 42 and a transmission belt 43. The transmission support frame 42 is located at the bottom of the glue application cylinder support 21, and the transmission belt 43 is located on the transmission support frame 42. A telescopic arm 23 is provided between the glue application cylinder support 21 and the transmission support frame 42.

[0024] Specifically, in use, the glue-applying device of this application first places the wooden board to be glued on the conveyor belt 43. As the conveyor belt 43 moves continuously, the wooden board passes over the bottom of the glue-applying cylinder assembly 3. During the glue-applying process, the up-and-down movement of the telescopic arm 23 drives the up-and-down movement of the glue-applying cylinder assembly 3 to adjust the extrusion deformation of the outer cylinder wall 33 and the different extrusion forces between the outer cylinder wall 33 and the wooden board. After the outer cylinder wall 33 is extruded and deformed, the glue between the inner cylinder wall 35 and the outer cylinder wall 33 is squeezed out through the one-way glue nozzle 341. At this time, the glue output is positively correlated with the deformation of the outer cylinder wall 33, thereby adjusting the glue output in real time to adapt to glue-applying operations under multiple working conditions.

[0025] In one embodiment of this utility model, such as Figure 2 and Figure 3 As shown, multiple storage capsules 34 are provided between the outer cylinder wall 33 and the inner cylinder wall 35. Adjacent storage capsules 34 are separated from each other by a buffer partition 343, which is made of elastic material.

[0026] A one-way glue feeding nozzle 342 is provided through the inner cylinder wall 35. The output end of the one-way glue feeding nozzle 342 is connected to the inside of the storage capsule 34. The glue inlet end of the one-way glue outlet nozzle 341 is connected to the inside of the storage capsule 34. A branch glue tube 351 is provided at the inlet end of the one-way glue feeding nozzle 342 to prevent glue in the storage capsule 34 from flowing back to the branch glue tube 351. A main glue tube 36 is provided at the inlet end of the branch glue tube 351.

[0027] The glue supply assembly 1 is provided on the glue application cylinder support 21. The glue supply assembly 1 includes a glue box 14 and a glue pump 12. The glue box 14 is located on the top of the glue application cylinder support 21, and a glue injection nozzle 11 is provided on the top of the glue box 14. The glue pump 12 is located at the output end of the glue box 14, and a glue delivery pipe 13 is provided at the output end of the glue pump 12. The glue delivery pipe 13 and the main glue pipe 36 are connected to each other by a sealed bearing 37.

[0028] Specifically, during the glue application process on the wood board, the glue in the glue box 14 is output through the glue pump 12 at the bottom and transmitted to the glue delivery pipe 13. The glue delivery pipe 13 transmits the glue to the rotating glue application cylinder assembly 3 through the sealed bearing 37 and enters the main glue pipe 36 inside the inner cylinder wall 35. The main glue pipe 36 replenishes the glue to the storage capsule 34 through the branch glue pipes 351.

[0029] When the outer cylinder wall 33 is deformed by compression, the storage capsule 34 is subjected to extrusion pressure. The glue inside the storage capsule 34 is output to the coating surface 32 through the one-way glue outlet 341 and evenly applied to the surface of the wooden board. As the glue coating cylinder assembly 3 rotates, the storage capsule 34 rotates away from the surface of the wooden board and then recovers under the action of elasticity. Negative pressure is generated inside the storage capsule 34, which replenishes the glue in the branch glue tube 351 through the one-way glue delivery nozzle 342, thereby realizing the continuous glue application and replenishment process.

[0030] In one embodiment of this utility model, such as Figure 2 and Figure 3 As shown, the outer surface of the outer cylinder wall 33 is provided with an adhesive coating surface 32, which is made of porous foam material and is a detachable structure.

[0031] Specifically, after the unidirectional glue nozzle 341 dispenses glue, the glue soaks into the porous adhesive surface 32, which can apply glue more evenly to the surface of the wood board. The detachable adhesive surface 32 can be replaced in real time, and the unidirectional glue nozzle 341 can be maintained in time to prevent it from becoming blocked.

[0032] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the glue applicator assembly 3 has cutting blades 31 at both ends for cutting the edges of the plywood boards. One end of the glue applicator assembly 3 is equipped with a glue applicator drive motor 22 for driving its rotation.

[0033] In one embodiment of this utility model, such as Figure 1 and Figure 2 As shown, the transmission support frame 42 is provided with two transmission rollers 44, and the transmission belt 43 is sleeved on the outside of the transmission rollers 44. A transmission belt support plate 45 is provided between the two transmission rollers 44 to stably support the wooden board, so that the pressure of the glue-applying cylinder assembly 3 is fully applied to the surface of the wooden board, and the wooden board is fully coated with glue. The transmission support frame 42 is also provided with a transmission drive motor 41 that drives the transmission rollers 44 to rotate.

[0034] To clearly illustrate the above embodiments, refer to Figures 1-3 The specific working principle of the gluing device for plywood production of this utility model is as follows: When using the gluing device of this application, the wood board to be glued is first placed on the conveyor belt 43. As the conveyor drive motor 41 drives the conveyor roller 44 to rotate, the conveyor belt 43 moves continuously, so that the wood board passes through the bottom of the glue coating cylinder assembly 3 continuously.

[0035] During the glue application process, the glue in the glue box 14 is output through the glue pump 12 at the bottom and transmitted to the glue delivery pipe 13. The glue delivery pipe 13 transmits the glue to the rotating glue application cylinder assembly 3 through the sealed bearing 37 and enters the main glue pipe 36 inside the inner cylinder wall 35. The main glue pipe 36 replenishes the glue to the storage capsule 34 through the branch glue pipes 351.

[0036] Subsequently, the up-and-down movement of the telescopic arm 23 drives the up-and-down movement of the glue application cylinder assembly 3, thereby adjusting the extrusion deformation of the outer cylinder wall 33 and the different extrusion pressures between the outer cylinder wall 33 and the wooden board. When the outer cylinder wall 33 is extruded and deformed, the storage capsule 34 is subjected to extrusion pressure, and the glue inside the storage capsule 34 is output to the glue application surface 32 through the one-way glue outlet 341, and is evenly applied to the surface of the wooden board. As the glue application cylinder assembly 3 rotates, the storage capsule 34 rotates away from the surface of the wooden board, and then recovers under the action of elasticity. A negative pressure is generated inside the storage capsule 34, which replenishes the glue in the branch glue tube 351 through the one-way glue delivery nozzle 342, thereby realizing the continuous glue application and replenishment process. Furthermore, since the glue output is positively correlated with the deformation of the outer cylinder wall 33, the glue output is adjusted by the extension and retraction of the telescopic arm 23, thereby controlling the glue output in real time and adapting to glue application operations under various working conditions.

[0037] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A gluing device for plywood production, characterized by, The assembly includes a glue-applying cylinder assembly (3) and a transmission assembly (4). The glue-applying cylinder assembly (3) is disposed above the transmission assembly (4). The glue-applying cylinder assembly (3) includes an inner cylinder wall (35), an outer cylinder wall (33), and a one-way glue nozzle (341). A glue-applying cylinder support (21) is disposed above the transmission assembly (4). The inner cylinder wall (35) is rotatably disposed on the glue-applying cylinder support (21). The outer cylinder wall (33) is sleeved on the outside of the inner cylinder wall (35). The outer cylinder wall (33) is made of elastic material. The one-way glue nozzle (341) is disposed through the outer surface of the outer cylinder wall (33). The transmission component (4) includes a transmission support frame (42) and a transmission belt (43). The transmission support frame (42) is located at the bottom of the glue-applying cylinder support (21), and the transmission belt (43) is located on the transmission support frame (42). A telescopic arm (23) is provided between the glue-applying cylinder support (21) and the transmission support frame (42).

2. The gluing device for plywood production according to claim 1, characterized in that, Multiple storage capsules (34) are provided between the outer cylinder wall (33) and the inner cylinder wall (35). Adjacent storage capsules (34) are separated from each other by a buffer partition (343), which is made of elastic material.

3. The gluing device for plywood production according to claim 2, characterized in that, A one-way glue feeding nozzle (342) is provided through the inner wall (35). The output end of the one-way glue feeding nozzle (342) is connected to the inside of the storage capsule (34). The glue inlet end of the one-way glue outlet nozzle (341) is connected to the inside of the storage capsule (34). A branch glue tube (351) is provided at the inlet end of the one-way glue feeding nozzle (342). A main glue tube (36) is provided at the inlet end of the branch glue tube (351).

4. The gluing apparatus for plywood production according to claim 3, characterized in that, The glue-applying cylinder support (21) is provided with a glue supply assembly (1), which includes a glue box (14) and a glue pump (12). The glue box (14) is located on the top of the glue-applying cylinder support (21), and the glue pump (12) is located at the output end of the glue box (14). The output end of the glue pump (12) is provided with a glue delivery pipe (13), and the glue delivery pipe (13) is connected to the main glue pipe (36) by a sealed bearing (37).

5. The gluing apparatus for plywood production according to claim 1, characterized in that, The outer surface of the outer cylinder wall (33) is provided with an adhesive coating surface (32), which is made of porous foam material and is a detachable structure.

6. The gluing apparatus for plywood production according to claim 1, characterized in that, The glue-applying tube assembly (3) is provided with cutting blades (31) at both ends, and a glue-applying tube drive motor (22) for driving its rotation is provided at one end of the glue-applying tube assembly (3).

7. The gluing apparatus for plywood production according to claim 1, characterized in that, The transmission support frame (42) is provided with two transmission rollers (44), the transmission belt (43) is sleeved on the outside of the transmission rollers (44), the transmission belt support plate (45) is provided between the two transmission rollers (44), and the transmission support frame (42) is also provided with a transmission drive motor (41) for driving the transmission rollers (44) to rotate.

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