Intelligent color changing device for rubber shaft of edge banding machine

Abstract

The utility model discloses an intelligent colour changing device of edge banding machine rubber shaft, including controller, still including several groups of colour changing unit, and each colour changing unit includes spray gun, pigment bin, continuous injector and with the gas distribution valve group of controller electric connection, the spray gun in several groups of colour changing unit is supplied with gas by the gas distribution valve group in respective colour changing unit respectively, and is supplied with material by the pigment bin in respective colour changing unit, and this carries out the spray colour change to the rubber shaft of outside. Through the glue solution of the rubber shaft on the edge banding machine colour change, make the glue line of solidification after edge banding and the board colour consistent, avoided the problem that the glue line and the board colour are not unified, and the spray amount of colour change pigment on each board is nearly consistent, solved the problem of low efficiency, and the spray amount is not consistent when manual handheld spray gun colour change.

Description

Technical Field

[0001] This utility model relates to the field of edge banding machine modification technology, specifically to an intelligent color-changing device for the adhesive shaft of an edge banding machine. Background Technology

[0002] The working principle of existing edge banding machines on the market is as follows: the workpiece to be glued, such as a horizontally placed board, is conveyed by a belt feeder. Then, the glue application shaft of the edge banding machine applies glue to the vertical edge of the board. During the glue application, the edge banding mechanism of the edge banding machine conveys the edge banding strip of the board. During the conveying, the edge banding strip is guided to contact and bond with the board, thereby achieving the glued edge banding effect of the board. However, we have found that because different users have different home decoration needs, the colors of the boards are varied, such as wood grain boards, mahogany boards, or matte black boards. However, the glue used by the edge banding machine is generally only one color, such as nearly transparent milky white. This means that when the color of the board does not match the color of the glue, a milky white glue line will be formed between the edge banding strip and the board after the edge banding is completed. This milky white glue line is inconsistent with the color of the board, thus affecting the aesthetics. This has become an industry pain point that most manufacturers find difficult to overcome. Based on this, we have made technical improvements to the current spray painting and color-changing equipment to address the challenges in the industry and meet user needs. Utility Model Content

[0003] The technical problem this invention aims to solve is to address the shortcomings of existing technologies by providing an intelligent color-changing device for edge banding machines. This device works in conjunction with edge banding machines, spraying color-changing pigment onto the machine's adhesive shaft while the machine is conveying the board. The sprayed pigment mixes with the adhesive on the adhesive shaft, resulting in a color that matches the board's color. This prevents the formation of milky-white glue lines due to adhesive solidification after the edge banding strip and board are bonded together. After testing, the device allows for the selection of corresponding color-changing units for different board colors, enabling the adhesive shaft on the edge banding machine to be color-changed. This ensures that the milky-white glue lines formed after the edge banding adhesive solidifies match the board's color, thus avoiding any unsightly impact on the appearance of the edge banding machine's adhesive shaft.

[0004] The technical problem to be solved by this utility model is achieved through the following technical solution: an intelligent color-changing device for the glue shaft of an edge banding machine, including a controller and several sets of color-changing units, each set of color-changing units including; A spray gun, which has an air inlet, a material inlet, and a spray nozzle; Pigment container, which is filled with pigments to be changed to a different color system; A continuous injector has an inlet and an outlet. The inlet of the continuous injector is connected to the pigment tank through a pipe, and the outlet of the continuous injector is connected to the inlet of the spray gun through a pipe. The air distribution valve group, which is electrically connected to the controller, has an air source inlet and a spray gun air source outlet. The spray gun air source outlet is connected to the air inlet of the spray gun through a pipe. The spray guns in several color-changing units are supplied with air by the air distribution valve group in their respective color-changing units and with pigment by the pigment tank in their respective color-changing units, so as to spray and change the color of the external rubber shaft.

[0005] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the intelligent color-changing device for the glue shaft of the edge banding machine described above, wherein the continuous injector is a rod-type continuous injector. Each of the color-changing units also includes a telescopic power mechanism, the power output end of which is directly opposite the injection switch of the rod-type continuous injector.

[0006] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the intelligent color-changing device for the glue shaft of the edge banding machine described above, wherein the telescopic power mechanism is a cylinder, and the air distribution valve group also has a cylinder air source inlet and outlet for supplying air to the cylinder.

[0007] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the intelligent color-changing device for the glue shaft of the edge banding machine described above also includes several mounting boxes, and the pigment tank, continuous injector, air distribution valve group and cylinder in each color-changing unit are sequentially installed in the same mounting box.

[0008] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the intelligent color-changing device for the glue shaft of the edge banding machine described above also includes a trigger switch, which is electrically connected to the controller. It is configured to be triggered by the material on the edge banding machine, thereby linking the controller to drive the color-changing unit to change the color of the glue shaft on the edge banding machine.

[0009] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the intelligent color-changing device for the glue shaft of the edge banding machine described above also includes an operating table, on the top of which is provided an installation groove, and the controller and several of the installation boxes are placed in the installation groove.

[0010] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the intelligent color-changing device for the glue shaft of the edge banding machine described above has a hanging hole on the top of the vertical side wall of the operating table, and the spray guns of each color-changing unit are installed at intervals on the hanging hole.

[0011] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the intelligent color-changing device for the glue shaft of the edge banding machine described above has a glass cover plate that can cover the mounting groove hinged to the top inner wall of the mounting groove.

[0012] The technical problem to be solved by this utility model can also be achieved through the following technical solution: the intelligent color-changing device for the glue shaft of the edge banding machine described above has a pressure gauge installed in the middle of the operating table, and the pressure gauge is placed at the air source inlet of the air distribution valve group.

[0013] Compared with the prior art, the beneficial technical effects of this utility model are: (1) The combination of multiple color-changing units can meet the color-changing operation of glue shafts of different color boards in different batches. The boards of the same batch have the same color. The trigger switch and controller can be linked to cause the continuous syringe to deliver the pigment in the pigment chamber to the spray gun and spray it onto the glue shaft, thereby achieving the purpose of color changing. The time and material used for each spraying are almost the same. This solves the problem of glue lines with different colors than the board color being left during the edge sealing operation of the board, and also solves the problem that manual glue spraying cannot achieve consistent usage. (2) The structure of each color-changing unit is very compact. The air distribution valve group can supply air to the spray gun and the telescopic power mechanism. On the one hand, it meets the feeding of the continuous injector to the spray gun adhesive, and on the other hand, it meets the air supply of the spray gun. The air supply for both actions is implemented by the color-changing unit. While meeting the color-changing requirements, it also minimizes the space occupied by the equipment, making it very convenient to carry and place. (3) The intelligent color-changing device of the rubber shaft has an operating table. The installation slot on the operating table can be used to place the controller and all the color-changing units. A glass cover is also installed on the installation slot. The operator can visually check the pigment tank balance of the controller and the color-changing unit through the glass cover. The spray gun of the color-changing unit is installed on the top side wall of the operating table. During the color-changing operation, only the corresponding spray gun needs to be manually picked up and placed. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main structure of the color-changing unit that removes the spray gun according to this utility model; Figure 2 A schematic diagram of the left side of the operating table equipped with the color-changing unit of the present invention, which has a removal spray gun. Figure 3 This is a front view structural diagram of the operating table equipped with the color-changing unit of the present invention, which has a removal spray gun.

[0015] Reference numerals: 1. Controller; 2. Pigment chamber; 3. Continuous injector; 4. Pressure gauge; 5. Gas distribution valve assembly; 6. Telescopic power mechanism; 7. Injection switch; 8. Mounting box; 9. Operating table; 10. Mounting slot; 11. Hanging hole; 12. Glass cover. Detailed Implementation

[0016] The specific technical solutions of this utility model are further described below with reference to the accompanying drawings, so as to enable those skilled in the art to further understand this utility model, without constituting a limitation on its rights.

[0017] Example 1, referring to Figure 1-3 A smart color-changing device for the adhesive shaft of an edge banding machine includes a controller 1, which can be a PLC controller 1 in the prior art, and also includes several sets of color-changing units. The number of color-changing units is set to correspond one-to-one with the number of color systems to be changed. The specific number can be selected by the customer according to their usage needs. Each set of color-changing units includes: Spray gun (not shown in the figure), the spray gun is the existing spray gun, and its specifications and models can be selected according to the usage requirements. It has an air inlet, a material inlet and a spray nozzle. Pigment container 2 is formed into a roughly bottle-like structure. Its size and specifications can be selected according to the customer's processing requirements. It is filled with pigments of the color to be changed. A continuous injector 3 is used to push the pigment in the pigment tank 2 into the spray gun. It has an inlet and an outlet. The inlet of the continuous injector 3 is connected to the pigment tank 2 through a pipe, and the outlet of the continuous injector 3 is connected to the inlet of the spray gun through a pipe. The air distribution valve group 5 is electrically connected to the controller 1. The air distribution valve group 5 can be a solenoid valve in the prior art. It has an air source inlet and a spray gun air source outlet. The spray gun air source outlet is connected to the air inlet of the spray gun through a pipe. The air distribution valve group 5 controls the on and off of the air source. The spray guns in several color-changing units are supplied with air by the air distribution valve group 5 in their respective color-changing units and with pigment by the pigment tank 2 in their respective color-changing units, so as to spray and change the color of the external rubber shaft.

[0018] In Example 1, during actual use, a rod (not shown in the figure) can be vertically fixed at the bottom of the spray gun. A magnet is fixed at the bottom of the rod, which can be directly attached to the top surface of the edge banding strip feed platform (not shown in the figure) on the back of the edge banding machine's adhesive shaft. The edge banding strip feed platform is a horizontally arranged metal platform provided by the edge banding machine, thereby forming the installation and fixation of the spray gun. During the continuous feeding and edge banding operation of the edge banding machine on the board, if the board is of the same color in the same batch, then there is no need to move the current position of the spray gun. While realizing the color change of the adhesive shaft, the workload of the operator is reduced because no personnel need to operate the spray gun.

[0019] Example 2, an intelligent color-changing device for the adhesive shaft of an edge banding machine as described in Example 1, wherein the continuous injector 3 is a rod-type continuous injector 3. The rod-type continuous injector 3 is existing technology, and its specifications and models can be selected according to usage requirements. If the rod-type continuous injector 3 has a built-in injection flow rate adjustment function, it can also be manually adjusted. Users can purchase rod-type continuous injectors 3 with different functions and models according to usage requirements. Each color-changing unit also includes a telescopic power mechanism 6. The telescopic power mechanism 6 is existing technology, and its specifications and models can be selected according to usage requirements. The power output end of the telescopic power mechanism 6 is directly opposite the injection switch 7 of the rod-type continuous injector 3. The injection switch 7 is actually the pressing handle of the rod-type continuous injector 3. After applying a pushing force to the injection switch 7, i.e. the pressing handle, the rod-type continuous injector 3 can transport materials.

[0020] In Example 2, when it is necessary to feed the spray gun, the telescopic power mechanism 6 can press the injection switch 7, i.e., the pressure handle, of the continuous injector 3, so that the pigment in the pigment chamber 2 is transported into the spray gun, thereby completing the feeding of the spray gun.

[0021] Example 3, the intelligent color-changing device for the adhesive shaft of the edge banding machine described in Example 2, wherein the telescopic power mechanism 6 is a cylinder, and the air distribution valve group 5 also has an air source inlet and outlet for supplying air to the cylinder. The cylinder is existing technology and its specifications and models can be selected according to practical needs.

[0022] In Example 3, after the external air source enters the air distribution valve group 5, it indirectly supplies air to the cylinder air source inlet and outlet and the spray gun through the air distribution valve group 5. The cylinder extension end presses the injection switch 7 of the continuous injector 3, i.e., the pressing handle, thereby causing the continuous injector 3 to push the pigment in the pigment chamber 2 into the spray gun, so that the air source and pigment enter the spray gun together, so as to spray the color-changing pigment on the spray gun.

[0023] Example 4, the intelligent color-changing device for the adhesive shaft of the edge banding machine described in Example 3, further includes several mounting boxes 8. The mounting boxes 8 are formed into a roughly square box structure, and their size and specifications can be selected according to the usage requirements. The pigment chamber 2, continuous injector 3, air distribution valve group 5 and cylinder in each color-changing unit are sequentially installed in the same mounting box 8.

[0024] In Example 4, in the mounting box 8, the continuous injector 3 is a rod-type continuous injector 3, which is installed horizontally and inverted. One side of the rod-type continuous injector 3 is a telescopic power mechanism 6, and the other side is a gas distribution valve group 5. The other side of the gas distribution valve group 5 is a pigment chamber 2. The top of the pigment chamber 2 has a bottle opening, through which filler can be added to the pigment chamber 2.

[0025] Example 5, the intelligent color-changing device for the adhesive shaft of the edge banding machine described in Example 2, further includes a trigger switch (not shown in the figure), which is electrically connected to the controller 1. It is configured to be triggered by the material input of the board on the edge banding machine, thereby linking the controller 1 to drive the color-changing unit to change the color of the adhesive shaft on the edge banding machine.

[0026] In Example 5, the trigger switch can be a photoelectric switch or limit switch, which can be arranged on the side wall of the edge banding machine and located next to the conveyor path. When the board material arrives, it can be triggered by the trigger switch, such as a photoelectric switch or limit switch, thereby giving an electrical signal to the controller 1. The controller 1 then operates the air distribution valve group 5 and the telescopic power mechanism 6. Since the control of electrical components such as the air distribution valve group 5 and the telescopic power mechanism 6 by the trigger switch and the controller 1 is existing technology, the specific wiring method and operating principle will not be described here.

[0027] Example 6, an intelligent color-changing device for the adhesive shaft of an edge banding machine according to any one of Examples 1-5, further includes an operating table 9. The operating table 9 is formed into a roughly square structure, and its shape, size and specifications can be selected according to the usage requirements. An installation groove 10 is provided on the top of the operating table 9. The installation groove 10 can be a square groove. The controller 1 and several of the installation boxes 8 are placed in the installation groove 10. The installation method can be bolt connection, etc. In addition, casters can be installed at the bottom of the control panel 9 to facilitate its movement.

[0028] Example 7, an intelligent color-changing device for the adhesive shaft of an edge banding machine as described in Example 6, has a hanging hole 11 on the top of the vertical side wall of the operating table 9. The hanging hole 11 is a cylindrical blind hole. The spray guns of each color-changing unit are installed on the hanging hole 11 at intervals. Before and after each spraying operation, the spray gun inserted into the hanging hole 11 can be directly picked up and put down by hand.

[0029] Example 8, an intelligent color-changing device for the adhesive shaft of an edge banding machine as described in Example 6, has a glass cover plate hinged to the top inner wall of the mounting groove 10 to cover the mounting groove 10. The glass cover plate can be a square structure.

[0030] In Example 8, a glass cover plate 12 is installed on the top of the mounting groove 10. During the color change operation of the edge banding machine, the operator can directly observe the working status of the controller 1 and the color change unit in the mounting groove 10 through the glass cover plate 12. The operator can also lift the glass cover plate 12 and replenish the pigment tank 2 of the corresponding color change unit in the mounting groove 10.

[0031] Example 9, the intelligent color-changing device for the adhesive shaft of the edge banding machine described in Example 6, has a pressure gauge 4 installed in the middle of the operating table 9. The pressure gauge 4 is installed at the air source inlet of the air distribution valve group 5. In actual use, the air source inlet of the air distribution valve group 5 needs to be connected to an air supply pipe. The purpose of the pressure gauge 4 is to detect the current pipeline pressure of the air source entering the air distribution valve group 5, i.e., the air supply pipe pressure.

[0032] The intelligent color-changing device for the adhesive shaft in Examples 1-9 operates on the following principle: (1) Preparation before color change: First, we remove the spray gun of the color change unit to be changed from the operating table 9, and then fix it on the edge banding strip conveyor platform of the edge banding machine. The fixing method can be achieved by magnetic attraction. After fixing, keep the spray nozzle of the spray gun facing the glue shaft. (2) Color change work: (2.1) Pigment supply to the spray gun: During the horizontal conveying of the board to be edge-banded by the edge banding machine, the board triggers the trigger switch installed on the side of the edge banding machine conveyor belt. The trigger switch sends a signal to the controller 1, and the controller 1 starts the telescopic power mechanism 6 to act. This causes the telescopic end of the telescopic power mechanism 6 to trigger the injection switch 7 of the continuous injector 3. The continuous injector 3 then transports the pigment drawn from the pigment chamber 2 through the pipeline to the inlet of the spray gun. It should be noted that the length of the board is proportional to the extension of the telescopic end of the telescopic power mechanism 6. The longer the board, the longer the pressing stroke of the injection switch 7 of the continuous injector 3. This ratio can be customized according to the user's needs, so the specific parameter values ​​will not be repeated here. (2.2) Air supply for spray gun and telescopic power mechanism 6: When the trigger switch sends a signal to the controller 1, the controller 1 starts the air distribution valve group 5. The external air source enters through the air source inlet of the air distribution valve group 5 and is divided into two air sources. One air source supplies air to the spray gun and the other air source supplies air to the telescopic power mechanism 6. (2.3) Spray gun switching: When the edge banding of the same color board is completed, and the edge banding of the board of another color is required, we can remove the spray gun from the edge banding strip feed platform and re-hang it on the hanging hole 11 of the operating table 9. Then, manually remove the spray gun of the target color change unit and fix the spray gun back on the edge banding strip feed platform of the edge banding machine, and keep the spray nozzle of the spray gun facing the glue shaft, so that the edge banding of the next batch of boards can be carried out.

[0033] The color-changing device essentially sprays the pigment from the spray gun into an atomized state onto the adhesive roller, where it mixes with the adhesive on the outer circumference of the roller to form a matching color that is almost identical to the current board color. This ensures that the adhesive line after the edge banding adhesive has solidified is consistent with the edge banding strip and the board, thereby eliminating the effect of the adhesive line not matching the board.

Claims

1. An intelligent color-changing device for the adhesive shaft of an edge banding machine, comprising a controller, characterized in that: It also includes several sets of color-changing units, each set of color-changing units includes; A spray gun, which has an air inlet, a material inlet, and a spray nozzle; Pigment container, which is filled with pigments to be changed to a different color system; A continuous injector has an inlet and an outlet. The inlet of the continuous injector is connected to the pigment tank through a pipe, and the outlet of the continuous injector is connected to the inlet of the spray gun through a pipe. The air distribution valve group, which is electrically connected to the controller, has an air source inlet and a spray gun air source outlet. The spray gun air source outlet is connected to the air inlet of the spray gun through a pipe. The spray guns in several color-changing units are supplied with air by the air distribution valve group in their respective color-changing units and with pigment by the pigment tank in their respective color-changing units, so as to spray and change the color of the external rubber shaft.

2. The intelligent color-changing device for the adhesive shaft of an edge banding machine according to claim 1, characterized in that: The continuous injector is a rod-type continuous injector; Each of the color-changing units also includes a telescopic power mechanism, the power output end of which is directly opposite the injection switch of the rod-type continuous injector.

3. The intelligent color-changing device for the adhesive shaft of an edge banding machine according to claim 2, characterized in that: The telescopic power mechanism is a cylinder, and the valve group also has a cylinder air source inlet and outlet for supplying air to the cylinder.

4. The intelligent color-changing device for the adhesive shaft of an edge banding machine according to claim 3, characterized in that: It also includes several mounting boxes, with the pigment tank, continuous injector, air distribution valve group and cylinder of each color-changing unit installed in the same mounting box in sequence.

5. The intelligent color-changing device for the adhesive shaft of an edge banding machine according to claim 2, characterized in that: It also includes a trigger switch, which is electrically connected to the controller and is configured to be triggered by the material arriving on the edge banding machine, thereby linking the controller to drive the color-changing unit to change the color of the glue shaft on the edge banding machine.

6. The intelligent color-changing device for the adhesive shaft of an edge banding machine according to claim 4, characterized in that: It also includes an operating table, on the top of which is a mounting slot, and the controller and several of the mounting boxes are placed in the mounting slot.

7. The intelligent color-changing device for the adhesive shaft of an edge banding machine according to claim 6, characterized in that: Hanging holes are provided on the top of the side wall of the control panel, and the spray guns of each color-changing unit are installed at intervals on the hanging holes.

8. The intelligent color-changing device for the adhesive shaft of an edge banding machine according to claim 6, characterized in that: A glass cover plate is hinged to the top inner wall of the mounting slot to cover the mounting slot.

9. The intelligent color-changing device for the adhesive shaft of an edge banding machine according to claim 6, characterized in that: A pressure gauge is installed in the middle of the control panel, and the pressure gauge is located at the air source inlet of the air distribution valve group.

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