Efficient gluing device and gluing process for decorative paper processing

Abstract

The application discloses a kind of high-efficiency gluing device and gluing process for decorative paper processing, including glue spraying device to roll cylinder is sprayed, glue spraying device includes nozzle, glue tank, glue pump, image acquisition module collects the spray image when nozzle sprays roll cylinder, and obtains spray uniformity according to spray image processing;Glue spraying acquisition module respectively collects the glue spraying distance between nozzle and roll cylinder, the glue extraction flow rate in glue tank, the glue viscosity in glue tank and the spray flow rate at nozzle;Processing module compares and does difference to obtain uniformity difference value between spray uniformity and standard uniformity, generates target function value according to uniformity difference value, uses glue spraying distance, glue extraction flow rate, glue viscosity and spray flow rate as glue spraying parameter, obtains global optimal solution when target function value is minimum using artificial fish school algorithm, generates several adjustment instructions according to each optimal glue spraying parameter, to adjust the glue spraying state of glue spraying device.The application improves the glue spraying uniformity of decorative paper.

Description

Technical Field

[0001] This invention relates to the field of decorative paper processing technology, and in particular to a high-efficiency gluing device and gluing process for decorative paper processing. Background Technology

[0002] Decorative paper coating equipment typically refers to devices used in the manufacture of decorative paperboard or paper. It applies glue or adhesive to the surface of the paper to adhere other materials, creating different textures, patterns, or effects. Decorative paper coating equipment is widely used in furniture manufacturing, packaging, and other fields requiring decorative paper. Different coating methods can be employed, such as roller coating, spray coating, and blade coating. Roller coating is advantageous for automated control, improving coating efficiency and quality. Therefore, current decorative paper coating equipment generally uses coating rollers to apply glue to the decorative paper. These rollers require the use of brushes to apply glue. However, brushes tend to leave glue residue, which can affect the application of fresh glue during subsequent brushing processes. Therefore, this brush-based glue application method suffers from insufficient glue uniformity. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a high-efficiency adhesive coating device and coating process for decorative paper processing, which improves the uniformity of adhesive coating on decorative paper.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency adhesive coating device for decorative paper processing, comprising:

[0005] A glue spraying device is installed on the upper end of the roller and is used to spray glue onto the roller. The glue spraying device includes a nozzle, a glue tank, and a glue pump. The glue tank stores glue, and the glue pump is connected to the nozzle through a pipe. The glue pump is used to pump the glue in the glue tank into the nozzle and spray it out.

[0006] An image acquisition module is used to acquire spray images of the nozzle spraying adhesive onto the roller, and to process the spray images to obtain spray uniformity.

[0007] The glue spraying acquisition module is used to collect the glue spraying distance between the nozzle and the roller, the glue extraction flow rate in the glue tank, the glue viscosity in the glue tank, and the spray flow rate at the nozzle, respectively.

[0008] The processing module, connected to the image acquisition module, the glue spraying acquisition module, and the glue spraying device, is used to compare the spray uniformity with a preset standard uniformity to obtain a uniformity difference value. Based on the uniformity difference value, an objective function value is generated. The glue spraying distance, the glue extraction flow rate, the glue viscosity, and the spray flow rate are used as glue spraying parameters. The global optimal solution is obtained by using an artificial fish swarm algorithm to minimize the objective function value. The global optimal solution contains several optimal glue spraying parameters. Several adjustment commands are generated based on each of the optimal glue spraying parameters to adjust the glue spraying state of the glue spraying device.

[0009] Furthermore, it also includes a distance adjustment device, an air compression device, and a temperature adjustment device, with the processing module connected to the distance adjustment device, the air compression device, and the temperature adjustment device respectively;

[0010] The distance adjustment device adjusts the glue spraying distance between the nozzle and the roller according to the adjustment command, the air compression device adjusts the air flow rate at the nozzle according to the adjustment command, and the temperature adjustment device adjusts the glue temperature in the glue tank according to the adjustment command.

[0011] Furthermore, the glue spraying device is detachably equipped with glue collection devices on both sides. The glue collection device includes a collection bucket, and a heating plate is provided inside the collection bucket. The heating plate is used to heat the glue collected in the collection bucket. The collection bucket is also connected to the input end of the glue pump through a pipe.

[0012] A high-efficiency adhesive coating process for decorative paper processing, applied to the aforementioned high-efficiency adhesive coating apparatus for decorative paper processing, includes:

[0013] Step S1: The image acquisition module acquires a spray image of the nozzle spraying adhesive onto the roller, and processes the spray image to obtain the spray uniformity.

[0014] Step S2: The glue spraying acquisition module collects the glue spraying distance between the nozzle and the roller, the glue extraction flow rate in the glue tank, the glue viscosity in the glue tank, and the spray flow rate at the nozzle, respectively.

[0015] Step S3: The processing module compares the spray uniformity with the preset standard uniformity to obtain the uniformity difference value. Based on the uniformity difference value, it generates an objective function value. The spraying distance, the glue extraction flow rate, the glue viscosity, and the spray flow rate are used as spraying parameters. The artificial fish swarm algorithm is used to obtain the global optimal solution when the objective function value is minimized. Based on each of the optimal spraying parameters, several adjustment commands are generated to adjust the spraying state of the glue spraying device.

[0016] The beneficial effects of this invention are:

[0017] This invention utilizes nozzles to spray adhesive onto a roller. During the spraying process, images of the adhesive application are captured and processed to obtain the spray uniformity. An objective function value is then generated based on the spray uniformity and standard uniformity. The collected spraying distance, adhesive extraction flow rate, adhesive viscosity, and spray flow rate are used as spraying parameters. An artificial fish swarm algorithm is employed to find the global optimal solution that minimizes the objective function value. Based on the optimal spraying parameters contained in the global optimal solution, several adjustment commands are generated to adjust the spraying state of the adhesive application device. This achieves dynamic adjustment of the nozzles' spraying process onto the roller, significantly improving spraying stability and uniformity, thereby enhancing the uniformity of adhesive application on decorative paper. Attached Figure Description

[0018] Figure 1 This is a control principle diagram of the high-efficiency glue coating device for decorative paper processing in this invention;

[0019] Figure 2 This is a flowchart of the steps in the efficient adhesive coating process for decorative paper processing in this invention.

[0020] Reference numerals: 1. Image acquisition module; 2. Adhesive spraying acquisition module; 3. Processing module; 4. Adhesive spraying device; 5. Distance adjustment device; 6. Air compression device; 7. Temperature adjustment device. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] Please also see Figure 1 This embodiment provides a high-efficiency adhesive coating device for decorative paper processing, including:

[0025] The glue spraying device 4 is set on the upper end of the roller and is used to spray glue onto the roller. The glue spraying device 4 includes a nozzle, a glue tank, and a glue pump. The glue tank stores glue, and the glue pump pipe is connected to the nozzle. The glue pump is used to pump the glue in the glue tank into the nozzle and spray it out.

[0026] Image acquisition module 1 is used to acquire spray images of the nozzle spraying adhesive onto the roller, and to process the spray images to obtain the spray uniformity.

[0027] The glue collection module 2 is used to collect the glue spraying distance between the nozzle and the roller, the glue extraction flow rate in the glue tank, the glue viscosity in the glue tank, and the spray flow rate at the nozzle, respectively.

[0028] Processing module 3 is connected to image acquisition module 1, glue spraying acquisition module 2, and glue spraying device 4 respectively. It is used to compare the spray uniformity with the preset standard uniformity to obtain the uniformity difference value. Based on the uniformity difference value, an objective function value is generated. The glue spraying distance, glue extraction flow rate, glue viscosity, and spray flow rate are used as glue spraying parameters. The global optimal solution with the minimum objective function value is obtained using the artificial fish swarm algorithm. The global optimal solution contains several optimal glue spraying parameters. Several adjustment commands are generated based on each optimal glue spraying parameter to adjust the glue spraying state of glue spraying device 4.

[0029] Specifically, in this embodiment, the glue spraying device 4 is located on the upper end of a roller, which is located on the upper end of a conveyor belt. Decorative paper is placed on the conveyor belt. The roller is connected to a drive device via a transmission assembly. The drive device drives the roller to rotate, and the glue spraying device 4 sprays glue onto the rotating rolling surface. After the glue is sprayed, the roller rolls and applies glue to the decorative paper on the conveyor belt. The image acquisition device can be a CCD camera, used to capture spray images when the nozzle sprays glue onto the roller. To improve the display effect of the spray image, a color developer is preferably added to the glue to make the color of the spray image clearer. The CCD camera is connected to an image processing terminal, used to perform image recognition on the spray image using the OpenCV algorithm to obtain the spray uniformity. The glue spraying acquisition module 2 includes a distance sensor, a liquid flow rate sensor, a viscosity sensor, and a water mist flow rate sensor. The distance sensor can be a laser rangefinder sensor, located on the side of the nozzle, used to measure the glue spraying distance between the nozzle and the roller. The laser rangefinder sensor is equipped with a waterproof housing to prevent glue splashing from the nozzle, which would affect its lifespan and measurement accuracy. The liquid flow rate sensor and the viscosity sensor are both located inside the glue tank. A liquid flow rate sensor is installed at the output end of the glue pump to detect the flow rate of the glue pumped out. A viscosity sensor is used to detect the viscosity of the glue in the glue tank in real time. A water mist flow rate sensor is installed at the nozzle spray outlet to detect the flow rate of the glue mist sprayed from the nozzle. This technical solution uses a nozzle to spray glue onto a roller. During the glue spraying process, spraying images are acquired and processed to obtain spray uniformity. Then, an objective function value is generated based on the spray uniformity and standard uniformity. The acquired spraying distance, glue extraction flow rate, glue viscosity, and spray flow rate are used as spraying parameters. The artificial fish swarm algorithm is used to find the global optimal solution when the objective function value is minimized. Based on the optimal spraying parameters contained in the global optimal solution, several adjustment commands are generated to adjust the spraying state of the glue spraying device 4. This realizes the dynamic adjustment of the nozzle to the roller glue spraying process, which significantly improves the spraying stability and uniformity, thereby improving the uniformity of the roller coating the decorative paper.

[0030] In this implementation plan, refer to Figure 1 As shown, it also includes a distance adjustment device 5, an air compression device 6, and a temperature adjustment device 7. The processing module 3 is connected to the distance adjustment device 5, the air compression device 6, and the temperature adjustment device 7 respectively. The distance adjustment device 5 adjusts the spraying distance between the nozzle and the roller according to the adjustment command. The air compression device 6 adjusts the air flow rate at the nozzle according to the adjustment command. The temperature adjustment device 7 adjusts the glue temperature in the glue tank according to the adjustment command.

[0031] Specifically, in this embodiment, during the glue spraying process of the glue spraying device 4 onto the roller, the uniformity of glue spraying is affected by the viscosity of the glue in the glue tank, the spray velocity at the nozzle, the spraying distance between the nozzle and the roller, and the glue extraction velocity in the glue tank. Changes in any of these variables will affect the overall glue spraying effect, leading to a decrease in uniformity. The distance adjustment device 5 can be a telescopic cylinder, fixedly connected to the nozzle, used to adjust its extension and retraction according to adjustment commands, thereby adjusting the spraying distance between the nozzle and the roller. The air compression device 6 can be an air compressor, with its compressed air output connected to the nozzle, used to adjust the air velocity at the nozzle according to adjustment commands. When the air velocity at the nozzle changes, the spray velocity at the nozzle is adjusted accordingly. The temperature adjustment device 7 can be several temperature regulating resistors evenly distributed inside the glue tank, used to adjust the temperature inside the glue tank. Since the viscosity of the glue in the glue tank is affected by the properties of the glue material and the liquid temperature inside the glue tank, under the premise that the glue material used remains unchanged, changes in the liquid temperature inside the glue tank will cause a change in the viscosity of the glue in the glue tank. Therefore, each temperature regulating resistor can adjust the viscosity of the glue by changing the temperature inside the glue tank.

[0032] In this implementation scheme, processing module 3 is an intelligent control terminal used to process data, obtain the global optimal solution, and generate corresponding adjustment commands to adjust the glue spraying state of the glue spraying device 4. The glue pump adjusts the glue flow rate at its output end according to the adjustment commands. The intelligent control terminal pre-stores a standard uniformity value, which is the uniformity value at the ideal state where glue spraying is most uniform. The uniformity difference obtained by subtracting the spray uniformity obtained under the current state from the standard uniformity can be used to reflect the difference between the glue spraying uniformity under the current state and the glue spraying uniformity under the ideal state. The relationship between the objective function value and the uniformity difference is configured as follows: Where f(x) represents the objective function value, ΔU m U is used to represent the uniformity difference. m Used to indicate the uniformity of adhesive application, U mThis is used to represent standard uniformity. In the process of finding the global optimal solution for minimizing the objective function value using the artificial fish swarm algorithm, the glue spraying parameters collected at the same time are integrated as an artificial fish. The objective function value of each artificial fish is calculated, and the artificial fish with the minimum objective function value is used as the global optimal solution. This global optimal solution contains several optimal glue spraying parameters for the current state. Based on these optimal parameters, corresponding adjustment commands are generated, sequentially adjusting the glue flow rate at the glue pump output, the glue spraying distance between the nozzle and the roller, the airflow rate at the nozzle, and the glue viscosity in the glue tank. This achieves dynamic adjustment of the nozzle's glue spraying process on the roller, significantly improving the stability and uniformity of glue spraying, thereby enhancing the uniformity of the roller's glue application to the decorative paper.

[0033] Preferably, in this embodiment, glue collection devices are detachably provided on both sides of the glue spraying device 4. The glue collection device includes a collection bucket, and a heating plate is provided inside the collection bucket. The heating plate is used to heat the glue collected in the collection bucket. The collection bucket is also connected to the input end of the glue pump through a pipe.

[0034] Specifically, in this embodiment, the glue collection device includes a collection bucket with an inclined chamfer. The collection bucket has an inclined surface on the side facing the roller, which facilitates the splattered glue sliding into the bottom of the collection bucket. Several parallel grooves are formed along one side of the inclined surface. A heating plate is embedded in the inclined surface to heat each groove, preventing glue from hardening and remaining in the grooves, and promoting glue collection at the bottom of the collection bucket. The melted glue at the bottom of the collection bucket is connected to the input of a glue pump through a pipe. The suction force of the glue pump removes the glue from the collection bucket, improving the utilization efficiency of the splattered glue.

[0035] Preferably, in this embodiment, a cooling device is also provided on the side of the roller. The cooling device is used to cool the glue on the roller after the glue spraying device 4 has finished spraying the glue, which is conducive to the cooling and shaping of the glue.

[0036] Furthermore, the cooling device includes a cooling fan with its outlet facing the side of the drum.

[0037] Preferably, although the cooling fan is located at the side of the roller and the glue spraying device 4 is located at the top of the roller, excessive airflow from the cooling fan may still affect the uniformity of glue spraying. To minimize the impact of the cooling fan's airflow on the uniformity of glue spraying, a wind speed detection device is installed at the outlet of the cooling fan to detect the cooling airflow speed at the fan outlet and establish a relationship between the safe wind speed and the spray velocity, where the relationship is configured as: v1=δv2cosθ

[0038] Where v1 represents the safe wind speed, δ represents the preset offset coefficient, θ represents the deviation angle between the nozzle and the fan outlet, and v2 represents the spray velocity. The safe wind speed represents the wind speed at which the air blown by the cooling fan will not adversely affect the uniformity of the adhesive spraying. After calculating the safe wind speed, a corresponding fan drive command is generated based on the safe wind speed to adjust the speed of the cooling fan, ensuring that the air blown by the cooling fan will not adversely affect the uniformity of the adhesive spraying, thereby guaranteeing the uniformity of the adhesive spraying.

[0039] A high-efficiency adhesive coating process for decorative paper processing, applied to the aforementioned high-efficiency adhesive coating apparatus for decorative paper processing, such as... Figure 2 As shown, it includes:

[0040] Step S1: The image acquisition module 1 acquires the spray image of the nozzle spraying glue onto the roller, and processes the spray image to obtain the spray uniformity.

[0041] Step S2, the glue collection module 2 collects the glue spraying distance between the nozzle and the roller, the glue extraction flow rate in the glue tank, the glue viscosity in the glue tank, and the spray flow rate at the nozzle.

[0042] In step S3, the processing module 3 compares the spray uniformity with the preset standard uniformity to obtain the uniformity difference value. Based on the uniformity difference value, it generates an objective function value. The spraying distance, glue extraction flow rate, glue viscosity, and spray flow rate are used as spraying parameters. The artificial fish swarm algorithm is used to obtain the global optimal solution when the objective function value is minimized. Based on each optimal spraying parameter, several adjustment commands are generated to adjust the spraying state of the glue spraying device 4.

[0043] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A high-efficiency gluing device for decorative paper processing, characterized in that, include: A glue spraying device is installed on the upper end of the roller and is used to spray glue onto the roller. The glue spraying device includes a nozzle, a glue tank, and a glue pump. The glue tank stores glue, and the glue pump is connected to the nozzle through a pipe. The glue pump is used to pump the glue in the glue tank into the nozzle and spray it out. An image acquisition module is used to acquire spray images of the nozzle spraying adhesive onto the roller, and to process the spray images to obtain spray uniformity. The glue spraying acquisition module is used to collect the glue spraying distance between the nozzle and the roller, the glue extraction flow rate in the glue tank, the glue viscosity in the glue tank, and the spray flow rate at the nozzle, respectively. The processing module, connected to the image acquisition module, the glue spraying acquisition module, and the glue spraying device, is used to compare the spray uniformity with a preset standard uniformity to obtain a uniformity difference value. Based on the uniformity difference value, an objective function value is generated. The glue spraying distance, the glue extraction flow rate, the glue viscosity, and the spray flow rate are used as glue spraying parameters. The global optimal solution is obtained by using an artificial fish swarm algorithm to minimize the objective function value. The global optimal solution contains several optimal glue spraying parameters. Several adjustment commands are generated based on each of the optimal glue spraying parameters to adjust the glue spraying state of the glue spraying device.

2. The high-efficiency gluing device for decorative paper processing according to claim 1, characterized in that: It also includes a distance adjustment device, an air compressor device, and a temperature adjustment device, and the processing module is connected to the distance adjustment device, the air compressor device, and the temperature adjustment device respectively; The distance adjustment device adjusts the glue spraying distance between the nozzle and the roller according to the adjustment command, the air compression device adjusts the air flow rate at the nozzle according to the adjustment command, and the temperature adjustment device adjusts the glue temperature in the glue tank according to the adjustment command.

3. The high-efficiency gluing device for decorative paper processing according to claim 1, characterized in that: The glue spraying device is detachably equipped with glue collection devices on both sides. The glue collection device includes a collection bucket, and a heating plate is provided inside the collection bucket. The heating plate is used to heat the glue collected in the collection bucket. The collection bucket is also connected to the input end of the glue pump through a pipe.

4. A high-efficiency adhesive coating process for decorative paper processing, applied to the high-efficiency adhesive coating apparatus for decorative paper processing as described in any one of claims 1-3, characterized in that, include: Step S1: The image acquisition module acquires a spray image of the nozzle spraying adhesive onto the roller, and processes the spray image to obtain the spray uniformity. Step S2: The glue spraying acquisition module collects the glue spraying distance between the nozzle and the roller, the glue extraction flow rate in the glue tank, the glue viscosity in the glue tank, and the spray flow rate at the nozzle, respectively. Step S3: The processing module compares the spray uniformity with the preset standard uniformity to obtain the uniformity difference value. Based on the uniformity difference value, it generates an objective function value. The spraying distance, the glue extraction flow rate, the glue viscosity, and the spray flow rate are used as spraying parameters. The artificial fish swarm algorithm is used to obtain the global optimal solution when the objective function value is minimized. Based on each of the optimal spraying parameters, several adjustment commands are generated to adjust the spraying state of the glue spraying device.

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