A glue spraying nozzle protection device of a glue spraying machine

Abstract

The utility model relates to a kind of glue spraying nozzle protection devices of glue spraying machine, belong to plate glue spraying technical field.The glue spraying machine includes rack and glue spraying mechanism, the glue spraying mechanism includes the glue spraying beam frame that can walk on the rack and multiple glue spraying components for glue spraying being set on glue spraying beam frame, the glue spraying beam frame is set on the rack by glue spraying horizontal moving mechanism, the glue spraying component includes glue spraying nozzle, the glue spraying nozzle protection device includes glue stopping protection groove, the glue stopping protection groove is equipped with the isolation solution for the immersion of glue spraying nozzle when stopping glue spraying.In the utility model, the glue spraying nozzle can be moved to the glue stopping protection groove when stopping glue spraying, the glue outlet position of the glue spraying nozzle is immersed in the isolation solution, the isolation solution can isolate the glue outlet position of the glue spraying nozzle from air, avoid glue solidification of the glue spraying nozzle during stopping glue spraying, after the next plate is in place, the glue spraying nozzle can directly carry out glue spraying operation, without staff cleaning, improve the glue spraying efficiency of plate.

Description

Technical Field

[0001] This utility model relates to a glue-applying nozzle protection device for a glue-applying machine, belonging to the field of glue-applying technology. Background Technology

[0002] Laminated boards are a type of wood-based engineered wood product. The adjacent layers are arranged perpendicularly to each other and are bonded together with adhesive. During processing, the boards are placed on a support platform inside the frame of a glue-applying machine. The glue-applying machine applies wood lamination adhesive to the surface of the boards, and then another board is placed on top. This process is repeated to apply adhesive to multiple layers of boards, which are then pressed together using a laminating machine.

[0003] The adhesive between laminated boards is usually applied to the board surface using a glue applicator with moving nozzles. After spraying, the glue applicator needs to stop spraying and wait for the upper layer to be placed in place before spraying the upper layer again. The number of layers is set according to production requirements. There is a downtime after each layer is glued, and even for boards with required thickness, there is a downtime after glue application and before the material is conveyed to the laminator. The adhesive used between the boards is mostly PUR wood laminating adhesive, which is prone to curing when exposed to air. Once cured, it will clog the glue applicator nozzles. The glue applicator has multiple nozzles, and once the nozzles are cured, workers need to clean each nozzle, which seriously affects the glue application efficiency. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a glue-applying nozzle protection device for a glue-applying machine.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a glue-spraying nozzle protection device for a glue-spraying machine, the glue-spraying machine including a frame and a glue-spraying mechanism disposed on the frame, the glue-spraying mechanism including a glue-spraying beam that can move on the frame and a plurality of glue-spraying components disposed on the glue-spraying beam for glue spraying, the glue-spraying beam being disposed on the frame by a glue-spraying horizontal moving mechanism, the glue-spraying components including glue-spraying nozzles, the glue-spraying nozzle protection device including a glue-stop protection tank, the glue-stop protection tank being provided with an isolation solution for the glue-spraying nozzles to be immersed in when glue spraying is stopped.

[0006] The beneficial effects of this invention are: during the glue application process, the glue remains in a flowing state, and the glue outlet of the glue application nozzle will not solidify. During the loading or unloading of the board, the glue application nozzle needs to stop applying glue. When the glue application stops, the glue outlet of the glue application nozzle is prone to solidification. The glue application nozzle can be moved to the glue stop protection tank when glue application stops, and the glue outlet of the glue application nozzle is immersed in the isolation solution. The isolation solution can isolate the glue outlet of the glue application nozzle from the air, preventing the glue from solidifying during the glue stop period. When the next board arrives, the glue application nozzle can directly perform glue application without the need for cleaning by the staff, thus improving glue application efficiency.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, the glue-stopping protection groove is provided on the frame.

[0009] The advantages of adopting the above-mentioned further solution are that the glue stop protection tank is set on the frame and does not need to move with the glue application beam, which can reduce energy consumption and avoid the risk of splashing of the isolation solution in the glue stop protection tank.

[0010] Furthermore, the glue-stopping protection tank is fixedly mounted on the frame by a tank bracket. After glue dispensing, the glue-spraying nozzle moves to the top of the glue-stopping protection tank under the action of the glue-spraying horizontal moving mechanism, and can be immersed in the isolation solution in the glue-stopping protection tank under the action of the glue-spraying lifting mechanism.

[0011] The beneficial effect of adopting the above-mentioned further solution is that the glue stop protection tank can be fixedly installed on the frame. After the glue dispensing nozzle is moved above the glue stop protection tank, the height of the glue dispensing nozzle can be adjusted by the glue dispensing lifting mechanism to lower it and immerse it in the isolation solution of the glue stop protection tank. This can prevent the glue dispensing nozzle from hardening due to contact with air after glue dispensing. After the next layer of board is placed, the glue dispensing nozzle only needs to be raised by the glue dispensing lifting mechanism and the glue dispensing horizontal moving mechanism can be used to apply glue to the surface of the board.

[0012] Furthermore, the adhesive coating assembly is mounted on the adhesive coating lifting frame, and the adhesive coating lifting frame is mounted on the adhesive coating beam frame via the adhesive coating lifting mechanism.

[0013] The beneficial effect of adopting the above-mentioned further solution is that, in order to meet the thickness requirements of plywood, there will be multiple layers of plywood. After the glue is applied to one layer of plywood, the next layer of plywood needs to be placed. After the next layer of plywood is placed in place, the glue application assembly can apply glue to the surface of the lower layer of plywood under the action of the glue application horizontal moving mechanism. The height of the glue application nozzle needs to be adjustable according to the glue application height on the plywood surface to ensure the glue application quality. Therefore, a glue application lifting frame is set up, and the height of the glue application assembly can be adjusted through the glue application lifting mechanism.

[0014] Furthermore, the adhesive application lifting mechanism includes a lifting screw, a sleeve threadedly connected to the lifting screw, and an outer sleeve fitted outside the sleeve. The lifting screw can rotate under the action of the screw drive mechanism. The sleeve is connected to the adhesive application lifting frame, and the outer sleeve is mounted on the adhesive application beam frame.

[0015] The beneficial effect of adopting the above-mentioned further solution is that when the lifting screw rotates, the sleeve can move along the axial direction of the lifting screw. The axial direction of the lifting screw is set in the vertical direction. The sleeve is connected to the glue-spraying lifting frame to realize the lifting action of the glue-spraying lifting frame, thereby realizing the lifting action of the glue-spraying assembly. The height of the glue-spraying nozzle can be adjusted according to the different heights of the board surface to meet the glue-spraying requirements of boards of different heights.

[0016] Furthermore, the lead screw drive mechanism includes a lifting motor, a lifting transmission shaft, a driving bevel gear, and a driven bevel gear meshing with the driving bevel gear. The lifting motor is mounted on the glue-coated beam frame, the lifting transmission shaft is rotatably mounted on the glue-coated beam frame, the driving bevel gear is mounted on the lifting transmission shaft, and the driven bevel gear is mounted on the lifting lead screw.

[0017] The beneficial effect of adopting the above-mentioned further solution is that when the lifting motor is activated, the lifting transmission shaft rotates, the driving bevel gear drives the driven bevel gear to rotate, the lifting screw rotates, and the sleeve moves along the axial direction of the lifting screw, enabling the glue-spreading lifting frame to move up and down, thereby realizing the lifting action of the glue-spreading assembly. Two sets of glue-spreading lifting mechanisms can be set, with two driving bevel gears respectively located at both ends of the lifting transmission shaft. When the lifting motor is activated, it can synchronously drive the lifting actions of both sets of glue-spreading lifting mechanisms.

[0018] Furthermore, the glue-stopping protection tank is mounted on the frame via a tank lifting mechanism. After glue dispensing, the glue-spraying nozzle moves to the top of the glue-stopping protection tank under the action of the glue-spraying horizontal moving mechanism. The glue-stopping protection tank moves upward under the action of the tank lifting mechanism, allowing the glue-spraying nozzle to be immersed in the isolation solution within the glue-stopping protection tank.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the height of the glue-stopping protection tank is adjustable. After the glue-dispensing nozzle stops dispensing, the height of the glue-dispensing nozzle does not need to be adjusted. Instead, the height of the glue-stopping protection tank is adjusted. When the glue-dispensing nozzle stops dispensing and moves to the top of the glue-stopping protection tank, the glue-dispensing nozzle does not move. The glue-stopping protection tank can be raised by the tank lifting mechanism until the glue-dispensing nozzle can be immersed in the isolation solution.

[0020] Furthermore, the tank lifting mechanism includes a tank lifting cylinder, the cylinder body of which is mounted on the frame, and the piston rod of which is connected to the glue-stopping protection tank.

[0021] The beneficial effect of adopting the above-mentioned further solution is that when the glue-dispensing nozzle stops dispensing and moves directly above the glue-stopping protection tank, the piston rod of the tank lifting cylinder moves, and the glue-stopping protection tank moves upward, which can be raised to a position where the glue-dispensing nozzle can enter the isolation solution. When the glue-dispensing nozzle needs to perform glue-dispensing operation, the glue-stopping protection tank is reset under the action of the tank lifting cylinder to avoid interfering with the movement of the glue-dispensing assembly.

[0022] Furthermore, the isolation solution is an organic solvent.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the glue-spraying nozzle can be immersed in an organic solvent when glue spraying stops. The isolation solution can isolate the air and prevent glue from curing at the glue-spraying nozzle position, thus preparing for the next glue spraying on the board surface. There is no need to manually clean the cured glue, thereby improving glue spraying efficiency.

[0024] Furthermore, the adhesive coating horizontal moving mechanism includes a traveling gear, a rack meshing with the traveling gear, and a traveling motor for driving the gear to rotate. The traveling motor is mounted on the adhesive coating beam, the traveling gear is mounted on the output shaft of the traveling motor, and the rack is mounted on the frame.

[0025] The beneficial effect of adopting the above-mentioned further solution is that the walking motor rotates, which drives the walking gear to rotate. The walking gear meshes with the rack on the side of the frame, and the glue-applying beam can move on the frame to realize the glue-applying operation of the glue-applying component on the surface of the sheet. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0027] Figure 2 This is a schematic diagram of the main structure of Embodiment 1 of this utility model;

[0028] Figure 3 This is a three-dimensional structural diagram of Embodiment 1 of the present utility model;

[0029] Figure 4 for Figure 3 Enlarged view of section A in the image;

[0030] Figure 5 for Figure 3 Enlarged view of section B in the image;

[0031] Figure 6 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0032] In the diagram, 1 is the frame; 2 is the glue-spraying beam; 3 is the glue-spraying nozzle; 4 is the glue-stop protection groove; 5 is the groove support; 6 is the glue-spraying lifting frame; 7 is the lifting drive shaft; 8 is the lifting screw; 9 is the rod sleeve; 10 is the outer sleeve; 11 is the lifting motor; 12 is the rack; 13 is the traveling gear; 14 is the traveling motor; and 15 is the groove lifting cylinder. Detailed Implementation

[0033] The principles and features of this utility model are described below with reference to examples. The examples are only used to explain this utility model and are not intended to limit the scope of this utility model.

[0034] Example 1, as Figures 1-5 As shown, a glue-spraying machine has a glue-spraying nozzle protection device. The glue-spraying machine includes a frame 1 and a glue-spraying mechanism mounted on the frame 1. The glue-spraying mechanism includes a glue-spraying beam 2 that can move on the frame 1 and a plurality of glue-spraying components mounted on the glue-spraying beam 2 for glue spraying. The glue-spraying beam 2 is mounted on the frame 1 via a glue-spraying horizontal moving mechanism. The glue-spraying components include glue-spraying nozzles 3. The glue-spraying nozzle 3 protection device includes a glue-stop protection tank 4. The glue-stop protection tank 4 is provided with an isolation solution for the glue-spraying nozzles 3 to be immersed in when glue spraying is stopped.

[0035] The glue-stop protection tank 4 is installed on the frame 1. Since the glue-stop protection tank 4 is installed on the frame 1, it does not need to move with the glue-applying beam 2, thus reducing energy consumption and preventing the risk of splashing of the isolation solution within the glue-stop protection tank 4.

[0036] The glue-stop protection tank 4 is fixedly mounted on the frame 1 via a tank bracket 5. After glue dispensing, the glue-applying nozzle 3 moves above the glue-stop protection tank 4 under the action of the glue-applying horizontal moving mechanism, and can be immersed in the isolation solution in the glue-stop protection tank 4 under the action of the glue-applying lifting mechanism. The glue-stop protection tank 4 can be fixedly mounted on the frame 1. After the glue-applying nozzle 3 moves above the glue-stop protection tank 4 after glue dispensing, the height of the glue-applying nozzle 3 can be adjusted by the glue-applying lifting mechanism to lower it and immerse it in the isolation solution in the glue-stop protection tank 4. This can prevent the glue-applying nozzle 3 from hardening due to contact with air after glue dispensing. After the next layer of board is placed, the glue-applying nozzle 3 only needs to be raised by the glue-applying lifting mechanism, and the glue-applying operation is performed on the surface of the board under the action of the glue-applying horizontal moving mechanism.

[0037] The glue-applying assembly is mounted on the glue-applying lifting frame 6, which is mounted on the glue-applying beam frame 2 via the glue-applying lifting mechanism. To meet the thickness requirements of the plywood, multiple layers of plywood are used. After one layer of plywood is glued, the next layer needs to be placed. Once the next layer is in place, the glue-applying assembly, under the action of the glue-applying horizontal moving mechanism, can apply glue to the surface of the lower layer. The height of the glue-applying nozzle 3 needs to be adjustable according to the glue application height on the plywood surface to ensure the glue-applying quality. Therefore, the glue-applying lifting frame 6 is provided, and the height of the glue-applying assembly can be adjusted via the glue-applying lifting mechanism.

[0038] The glue-applying lifting mechanism includes a lifting screw 8, a sleeve 9 threadedly connected to the lifting screw 8, and an outer sleeve 10 fitted over the sleeve 9. The lifting screw 8 can rotate under the action of the screw drive mechanism. The lifting screw 8 is rotatably connected to the glue-applying beam 2. The sleeve 9 is connected to the glue-applying lifting frame 6. The outer sleeve 10 is mounted on the glue-applying beam 2. When the lifting screw 8 rotates, the sleeve 9 can move along the axial direction of the lifting screw 8, which is vertical. The sleeve 9 is connected to the glue-applying lifting frame 6, realizing the lifting action of the glue-applying lifting frame 6, thereby realizing the lifting action of the glue-applying assembly. The height of the glue-applying nozzle 3 can be adjusted according to the different heights of the board surface to meet the glue-applying requirements of boards of different heights.

[0039] The screw drive mechanism includes a lifting motor 11, a lifting transmission shaft 7, a driving bevel gear, and a driven bevel gear meshing with the driving bevel gear. The lifting motor 11 is mounted on the glue-coating beam 2, the lifting transmission shaft 7 is rotatably mounted on the glue-coating beam 2, the driving bevel gear is mounted on the lifting transmission shaft 7, and the driven bevel gear is mounted on the lifting screw 8. When the lifting motor 11 is activated, the lifting transmission shaft 7 rotates, the driving bevel gear drives the driven bevel gear to rotate, the lifting screw 8 rotates, and the sleeve 9 moves along the axial direction of the lifting screw 8, enabling the glue-coating lifting frame 6 to move up and down, thereby realizing the lifting action of the glue-coating assembly. Two sets of glue-coating lifting mechanisms can be provided, with two driving bevel gears respectively located at both ends of the lifting transmission shaft 7. When the lifting motor 11 is activated, it can synchronously drive the lifting action of both sets of glue-coating lifting mechanisms.

[0040] The isolation solution is an organic solvent. When dispensing adhesive, the nozzle 3 can be immersed in the organic solvent. The isolation solution isolates the nozzle from air, preventing adhesive from hardening at the nozzle 3 position and preparing it for the next application of adhesive to the board surface. This eliminates the need for manual cleaning of hardened adhesive, improving dispensing efficiency. The organic solvent can be a solvent such as methyl acetate, which can dilute the adhesive.

[0041] The adhesive application horizontal movement mechanism includes a traveling gear 13, a rack 12 meshing with the traveling gear 13, and a traveling motor 14 for driving the traveling gear 13 to rotate. The traveling motor 14 is mounted on the adhesive application beam 2, the traveling gear 13 is mounted on the output shaft of the traveling motor 14, and the rack 12 is mounted on the frame 1. When the traveling motor 14 rotates, it drives the traveling gear 13 to rotate. The traveling gear 13 meshes with the rack 12 on the side of the frame 1, allowing the adhesive application beam 2 to move on the frame 1, thus realizing the adhesive application operation of the adhesive application assembly on the surface of the sheet material.

[0042] The frame 1 is equipped with a slide rail, and the glue-coated beam 2 is equipped with rollers that can travel on the slide rail.

[0043] Example 2, as Figure 6 As shown, the glue-stopping protection tank 4 is mounted on the frame 1 via a tank lifting mechanism. After glue dispensing stops, the glue-spraying nozzle 3 moves to above the glue-stopping protection tank 4 under the action of the glue-spraying horizontal moving mechanism. The glue-stopping protection tank 4 moves upward under the action of the tank lifting mechanism, allowing the glue-spraying nozzle 3 to be immersed in the isolation solution within the glue-stopping protection tank 4. The glue-stopping protection tank 4 is height-adjustable. After glue dispensing nozzle 3 stops, the height of glue-spraying nozzle 3 does not need to be adjusted; instead, the height of the glue-stopping protection tank 4 is adjusted. When glue dispensing nozzle 3 stops and moves to above the glue-stopping protection tank 4, the nozzle 3 remains stationary, while the glue-stopping protection tank 4 rises under the action of the tank lifting mechanism until the glue-spraying nozzle 3 is immersed in the isolation solution.

[0044] The tank lifting mechanism includes a tank lifting cylinder 15, the cylinder body of which is mounted on the frame 1. The piston rod of the tank lifting cylinder 15 is connected to the glue-stopping protection tank 4. Two tank lifting cylinders 15 are provided. They are used to control the lifting and lowering of the glue-stopping protection tank 4. When the glue-dispensing nozzle 3 stops dispensing and moves directly above the glue-stopping protection tank 4, the piston rod of the tank lifting cylinder 15 actuates, and the glue-stopping protection tank 4 moves upward, reaching a position where the glue-dispensing nozzle 3 can enter the isolation solution. When the glue-dispensing nozzle 3 needs to perform glue dispensing operations, the glue-stopping protection tank 4 resets under the action of the tank lifting cylinder 15 to avoid interfering with the movement of the glue dispensing assembly. The remaining structure is the same as in Embodiment 1, and therefore will not be described further here.

[0045] In this invention, the glue remains in a flowing state during normal glue application, and the glue outlet of the glue nozzle 3 will not solidify. When the glue application on the board surface is completed, the glue application machine needs to stop applying glue while waiting for the board to be loaded or unloaded. During the glue stoppage, the glue outlet of the glue nozzle 3 is exposed to the air and is prone to glue solidification. Therefore, during the glue stoppage, the glue nozzle 3 can be moved to the glue stoppage protection tank 4, and the glue outlet of the glue nozzle 3 is immersed in the isolation solution. The isolation solution can isolate the glue outlet of the glue nozzle 3 from the air, preventing the glue from solidifying during the glue stoppage. After the next board arrives, the glue nozzle 3 can directly perform the glue application without the need for cleaning by the staff, thus improving the glue application efficiency of the glue application machine.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A nozzle protection device for a glue-applying machine, the glue-applying machine comprising a frame (1) and a glue-applying mechanism disposed on the frame (1), the glue-applying mechanism comprising a glue-applying beam (2) capable of moving on the frame (1) and a plurality of glue-applying components disposed on the glue-applying beam (2), the glue-applying beam (2) being disposed on the frame (1) via a glue-applying horizontal moving mechanism, the glue-applying components comprising glue-applying nozzles (3), characterized in that, The glue-applying nozzle (3) protection device includes a glue-stopping protection tank (4), which contains an isolation solution for the glue-applying nozzle (3) to be immersed in when glue application is stopped.

2. The glue-applying nozzle protection device for the glue-applying machine according to claim 1, characterized in that, The glue stop protection groove (4) is installed on the frame (1).

3. The glue-applying nozzle protection device for the glue-applying machine according to claim 2, characterized in that, The glue-stop protection tank (4) is fixedly mounted on the frame (1) by the tank bracket (5). After glue stops, the glue nozzle (3) moves to the top of the glue-stop protection tank (4) under the action of the glue-spraying horizontal moving mechanism, and can be immersed in the isolation solution in the glue-stop protection tank (4) under the action of the glue-spraying lifting mechanism.

4. The glue-applying nozzle protection device for the glue-applying machine according to claim 3, characterized in that, The glue-spraying assembly is mounted on the glue-spraying lifting frame (6), which is mounted on the glue-spraying beam frame (2) via the glue-spraying lifting mechanism.

5. The glue-applying nozzle protection device for the glue-applying machine according to claim 3 or 4, characterized in that, The adhesive coating lifting mechanism includes a lifting screw (8), a sleeve (9) threadedly connected to the lifting screw (8), and an outer sleeve (10) fitted outside the sleeve (9). The lifting screw (8) can rotate under the action of the screw drive mechanism. The lifting screw (8) is rotatably connected to the adhesive coating beam (2). The sleeve (9) is connected to the adhesive coating lifting frame (6). The outer sleeve (10) is set on the adhesive coating beam (2).

6. The glue-applying nozzle protection device for the glue-applying machine according to claim 5, characterized in that, The lead screw drive mechanism includes a lifting motor (11), a lifting transmission shaft (7), a driving bevel gear and a driven bevel gear meshing with the driving bevel gear. The lifting motor (11) is mounted on the glue-coated beam frame (2). The lifting transmission shaft (7) is rotatably mounted on the glue-coated beam frame (2). The driving bevel gear is mounted on the lifting transmission shaft (7). The driven bevel gear is mounted on the lifting lead screw (8).

7. The glue-applying nozzle protection device for the glue-applying machine according to claim 2, characterized in that, The glue-stop protection tank (4) is mounted on the frame (1) via a tank lifting mechanism. After glue stops, the glue nozzle (3) moves to the top of the glue-stop protection tank (4) under the action of the glue horizontal moving mechanism. The glue-stop protection tank (4) moves upward under the action of the tank lifting mechanism, allowing the glue nozzle (3) to be immersed in the isolation solution in the glue-stop protection tank (4).

8. The glue-applying nozzle protection device for the glue-applying machine according to claim 7, characterized in that, The trough lifting mechanism includes a trough lifting cylinder (15), the cylinder body of which is mounted on the frame (1), and the piston rod of which is connected to the glue-stopping protection trough (4).

9. The glue-applying nozzle protection device for the glue-applying machine according to claim 1, characterized in that, The isolation solution uses an organic solvent.

10. The glue-applying nozzle protection device for the glue-applying machine according to claim 1, characterized in that, The adhesive coating horizontal moving mechanism includes a traveling gear (13), a rack (12) meshing with the traveling gear (13), and a traveling motor (14) for driving the traveling gear (13) to rotate. The traveling motor (14) is mounted on the adhesive coating beam (2), the traveling gear (13) is mounted on the output shaft of the traveling motor (14), and the rack (12) is mounted on the frame (1).

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