CN108393208A - Automatic glue applying system and method - Google Patents

Abstract

The invention provides an automatic sizing system and method, including: a motor, a frequency converter, a solenoid valve, a gas pressure sensor, and a controller. The motor is used to connect with a feeder and provide power for the feeder. The frequency converter is connected to the motor and the controller for obtaining the speed information of the motor and sending it to the controller, and the gas pressure sensor is connected to the controller for being arranged at the nozzle outlet, Obtain the gas pressure information of the nozzle outlet, and send the gas pressure information to the controller, and the controller is used to output PWM pulses according to the speed information and the gas pressure information, and send the PWM pulses to Send to the solenoid valve, the solenoid valve is used to connect with the nozzle, and adjust the size of the gas flow into the nozzle according to the PWM pulse, and then adjust the size of the amount of glue sprayed, realizing the saving of glue amount and cost.

Description

Automatic glue application system and method

technical field

The invention belongs to the technical field of gluing, and more specifically relates to an automatic gluing system and method.

Background technique

The production of molded products using bamboo powder or wood powder as raw material is an effective way to make full use of raw materials. In the batching process, sizing is an important link. The existing sizing method is often to slowly pour the glue solution containing curing agent when the powder is stirred in the high-speed mixer, and use the high-speed rotation and stirring of the high-speed mixer to achieve the purpose of sizing. With this method, the uniformity of sizing cannot be guaranteed during the sizing process. At present, the existing automatic glue spraying machine is to control the manipulator to perform automatic glue spraying according to the required shape, glue thickness and width by inputting the programmed program, which can carry out batch fixed glue spraying. The material sizing efficiency is relatively high, but when the powder is sprayed with an automatic glue sprayer, the corresponding sizing amount cannot be adjusted in time according to the amount of feed, resulting in waste of glue and increasing costs.

Contents of the invention

The object of the present invention is to provide an automatic gluing system and method, aiming at solving the glue waste and cost increase caused by the inability to timely adjust the corresponding gluing amount according to the feeding amount in the prior art.

In order to achieve the above purpose, an embodiment of the present invention provides an automatic glue application system and method, including: a motor, a frequency converter, a gas pressure sensor, a controller, and a solenoid valve;

The motor is used to connect with the feeder and provide power for the feeder;

The frequency converter is connected to the motor and the controller, and is used to obtain the speed information of the motor and send it to the controller;

The gas pressure sensor is connected to the controller, and is configured to be arranged at the gas outlet of the nozzle, to obtain gas pressure information at the gas outlet of the nozzle, and to send the gas pressure information to the controller;

The controller is used to output PWM pulses according to the speed information and the gas pressure information, and send the PWM pulses to the solenoid valve;

The electromagnetic valve is used to connect with the shower head, and adjust the size of the gas flow entering the shower head according to the PWM pulse, and then adjust the size of the glue spraying amount.

Further, the automatic gluing system also includes: a pressure transmitter;

The gas pressure sensor is connected to the controller through the pressure transmitter;

The pressure transmitter is used to convert the gas pressure information in the form of a primary electrical signal acquired by the gas pressure sensor into gas pressure information in the form of a standard electrical signal, and send the information to the controller.

Further, the automatic gluing system also includes: a spray head;

The spray head is connected with the solenoid valve for atomizing and spraying the glue solution.

Further, the automatic gluing system also includes: a glue tank;

The glue tank is connected with the spray head for storing the glue solution and providing the glue solution to the spray head for spraying.

Further, the automatic gluing system also includes: a pneumatic device;

The pneumatic device includes an air compressor, an air source adjustment device, and a pneumatic triple;

The air compressor is connected to the pneumatic triple piece through the air source adjustment device;

The pneumatic device is connected with the spray head, and is used to provide power for atomization and spraying of the spray head.

Further, the automatic sizing system also includes: a feeder;

The feeder is connected with the motor, and is used to deliver the material to be glued to the spray head for atomized spraying.

Further, the automatic gluing system also includes: a one-way throttle valve;

One end of the one-way throttle valve is connected to the solenoid valve, and the other end is connected to the nozzle;

The one-way throttle valve is used to control the speed of gas injection from the shower head.

Further, the solenoid valve is a direct-acting high-frequency solenoid valve.

The embodiment of the present invention also provides an automatic sizing method, which is characterized in that it comprises the following steps:

The frequency converter acquires the speed information of the motor and sends it to the controller;

The gas pressure sensor acquires gas pressure information at the gas outlet of the nozzle and sends it to the controller;

The controller outputs PWM pulses according to the speed information and the gas pressure information, and sends the PWM pulses to the solenoid valve;

The solenoid valve adjusts the flow rate of gas entering the shower head according to the PWM pulse.

The beneficial effects of the automatic gluing system and method provided by the embodiments of the present invention are: compared with the prior art, the automatic gluing system of the present invention includes: a motor, a frequency converter, a solenoid valve, a gas pressure sensor, and a controller. The motor is used to connect with the feeder and provide power for the feeder. The frequency converter is connected to the motor and the controller to obtain the speed information of the motor and send it to the controller. The gas pressure sensor is connected with the controller, and is used for setting at the gas outlet of the nozzle, obtaining the gas pressure information of the gas outlet of the nozzle, and sending the gas pressure information to the controller, and the controller is used according to the speed Information and the gas pressure information, output PWM pulse, and send the PWM pulse to the solenoid valve, the solenoid valve is used to connect with the shower head, and adjust the gas flow rate entering the shower head according to the PWM pulse, Furthermore, the size of the spray glue amount is adjusted, and the corresponding glue amount is adjusted in time according to the feed amount, which saves the amount of glue used and reduces the cost.

Description of drawings

Fig. 1 is the structural block diagram of the automatic gluing system that the embodiment of the present invention provides;

Fig. 2 is a schematic structural view of the automatic gluing equipment provided by the embodiment of the present invention.

Reference signs:

1-motor 2-inverter 3-gas pressure sensor 4-controller

5-solenoid valve 6-spray head 7-glue tank 8-air compressor

9-Air source adjustment device 10-Pneumatic triple piece 11-Feeder 12-One-way throttle valve

13-Reducer 14-Sizing Bucket 15-Hopper

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

Detailed ways:

As shown in Figure 1-2, the embodiment of the present invention provides an automatic sizing system and method, including: a motor 1, a frequency converter 2, a gas pressure sensor 3, a controller 4, and a solenoid valve 5;

The motor 1 is used to connect with the feeder and provide power for the feeder;

The frequency converter 2 is connected to the motor 1 and the controller 4 for obtaining the speed information of the motor 1 and sending it to the controller 4;

The gas pressure sensor 3 is connected to the controller 4, and is configured to be arranged at the gas outlet of the nozzle, to obtain the gas pressure information of the gas outlet of the nozzle, and to send the gas pressure information to the controller 4;

The controller 4 is configured to output a PWM (Pulse Width Modulation, pulse width modulation) pulse according to the speed information and the gas pressure information, and send the PWM pulse to the solenoid valve 5;

The solenoid valve 5 is used to connect with the shower head 6, and adjust the flow rate of the gas entering the shower head 6 according to the PWM pulse, and then adjust the amount of glue sprayed.

Specifically, the frequency converter 2 is connected to the motor 1 and the controller 4, and is used to obtain instruction information from the controller 4, and adjust the speed of the motor 1 according to the instruction information, and is also used to Obtain the speed information of the motor 1, and feed back the speed information to the controller 4. Because of the working error between the motor 1 and the frequency converter 2, the controller 4 It is more accurate to adjust the PWM pulse.

Optionally, the working steps of the controller 4 outputting PWM pulses according to the speed information and the gas pressure information include: in the initial state, the feed amount matches the glue amount, which is proportional; Changes in speed information; if the speed information increases/decreases, increase/decrease the pulse width of the PWM pulse to obtain the first PWM pulse; judge the gas pressure information fed back by the gas pressure sensor If the gas pressure information increases/decreases, then reduce/increase the pulse width of the first PWM pulse to obtain a second PWM pulse, and the second PWM pulse is the controller 4 outputting the PWM pulse for adjusting the solenoid valve 5 . The solenoid valve 5 adjusts the size of the gas flow according to the PWM pulse, and then adjusts the size of the glue spraying amount, so that the amount of glue applied is matched with the amount of feed.

Optionally, the controller 4 can adopt Siemens S7-200 SMART PLC controller.

The working process of the automatic gluing system is as follows: the controller 4 receives the instruction information of the predetermined frequency value input by the user, and sends the instruction information to the frequency converter 2, and the frequency converter 2 The instruction information adjusts the speed of the motor 1, and the feeder transmits the material to be glued to the glue barrel 14 according to the speed of the motor 1, and the material is sprayed between the glue barrel 14 and the nozzle 6. The glue is mixed and sent out through the discharge port of the glue barrel 14, the frequency converter 2 obtains the speed information of the motor 1, and feeds it back to the controller 4; The gas pressure sensor 3 acquires the gas pressure information at the nozzle outlet, and sends it to the controller 4; the controller 4 outputs PWM pulses according to the speed information and the gas pressure information, and sends the PWM pulses to Give the electromagnetic valve 5; the electromagnetic valve 5 adjusts the size of the gas flow entering the nozzle 6 according to the PWM pulse, and then adjusts the size of the glue spraying amount, so that the amount of glue applied is matched with the amount of feed material , to avoid the waste of glue, and make the sizing more uniform.

The automatic gluing system of the present invention comprises: motor 1, frequency converter 2, electromagnetic valve 5, gas pressure sensor 3, controller 4, and described motor 1 is used for being connected with feeder, and provides power for feeder, so The frequency converter 2 is connected to the motor 1 and the controller 4 for obtaining the speed information of the motor 1 and sending it to the controller 4, and the gas pressure sensor 3 is connected to the controller 4 for It is arranged at the gas outlet of the shower head to obtain the gas pressure information of the gas outlet of the shower head, and send the gas pressure information to the controller 4, and the controller 4 is used to, according to the speed information and the gas pressure information, Output the PWM pulse, and send the PWM pulse to the solenoid valve 5, the solenoid valve 5 is used to connect with the nozzle 6, and adjust the gas flow rate entering the nozzle 6 according to the PWM pulse, and then adjust the glue spraying The size of the amount realizes the timely adjustment of the corresponding glue amount according to the amount of feed, which saves the amount of glue used and reduces the cost.

Optionally, the automatic gluing system also includes a speed reducer 13;

The motor 1 is connected with the feeder 11 through the speed reducer 13;

The speed reducer 13 is used to match the speed and transmission torque of the motor 1 . By using the speed reducer 13 to increase the torque, the transmission efficiency is improved.

Further, the automatic gluing system may also include: a pressure transmitter;

The gas pressure sensor 3 can be connected to the controller 4 through the pressure transmitter;

The pressure transmitter is used to convert the gas pressure information obtained by the gas pressure sensor 3 in the form of primary electrical signals into gas pressure information in the form of standard electrical signals, and send the information to the controller 4 .

Optionally, the model of the pressure transmitter is WMB-HS/XS.

Further, the automatic gluing system also includes: spray head 6;

The spray head 6 is connected with the electromagnetic valve 5 for atomizing and spraying the glue solution.

Further, the automatic gluing system also includes: a glue tank 7;

The glue tank 7 is connected to the spray head 6 for storing the glue solution and providing the glue solution to the spray head 6 for spraying.

Further, the automatic gluing system also includes: a pneumatic device;

The pneumatic device includes an air compressor 8, an air source adjustment device 9, and a pneumatic triple piece 10;

The air compressor 8 is connected to the pneumatic triple unit 10 through the air source adjustment device 9;

The pneumatic device is connected with the spray head 6 and is used to provide power for the spray head 6 to atomize and spray.

Further, the automatic gluing system also includes: a feeder 11;

The feeder 11 is connected with the motor 1 and is used to feed the material to be glued from the hopper 15 and deliver it to the spray head 6 for atomized spraying. The feeder 11 and the motor 1 can be a separate structure or an integral structure.

Optionally, the feeder is a screw feeder, and the screw feeder has simple structure, low cost, and flexible loading and unloading.

Further, the automatic gluing system also includes: a one-way throttle valve 12;

One end of the one-way throttle valve 12 is connected with the solenoid valve 5, and the other end is connected with the spray head 6;

The one-way throttle valve 12 is used to control the gas injection speed of the shower head 6 . Through the adjustment of the one-way throttle valve 12, it is possible to realize the combination of manual adjustment and automatic adjustment of the electromagnetic valve 5 to control the amount of glue applied, further saving glue and reducing costs.

Further, the solenoid valve 5 is a direct-acting high-frequency solenoid valve.

The direct-acting high-frequency solenoid valve has short action time, rapid response and high frequency.

The embodiment of the present invention also provides an automatic sizing method, which is characterized in that it comprises the following steps:

The frequency converter 2 acquires the speed information of the motor 1 and sends it to the controller 4;

The gas pressure sensor 3 acquires gas pressure information at the nozzle outlet, and sends it to the controller 4;

The controller 4 outputs PWM pulses according to the speed information and the gas pressure information, and sends the PWM pulses to the solenoid valve 5;

The solenoid valve 5 adjusts the flow rate of the gas entering the shower head 6 according to the PWM pulse.

The automatic sizing method provided in this embodiment realizes the timely adjustment of the corresponding sizing amount according to the amount of feed, which saves the amount of glue used and reduces the cost.

It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device Or elements must have a certain orientation, be constructed and operate in a certain orientation, and thus should not be construed as limiting the invention.

In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

In the description of this specification, descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the described specific features, structures, materials or characteristics may be combined in any suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without conflicting with each other.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (9)

1. An automatic gluing system, characterized in that it comprises: a motor, a frequency converter, a gas pressure sensor, a controller, and a solenoid valve; The motor is used to connect with the feeder and provide power for the feeder; The frequency converter is connected to the motor and the controller, and is used to obtain the speed information of the motor and send it to the controller; The gas pressure sensor is connected to the controller, and is configured to be arranged at the gas outlet of the nozzle, to obtain gas pressure information at the gas outlet of the nozzle, and to send the gas pressure information to the controller; The controller is used to output PWM pulses according to the speed information and the gas pressure information, and send the PWM pulses to the solenoid valve; The electromagnetic valve is used to connect with the shower head, and adjust the size of the gas flow entering the shower head according to the PWM pulse, and then adjust the size of the glue spraying amount. 2. The automatic gluing system according to claim 1, further comprising: a pressure transmitter; The gas pressure sensor is connected to the controller through the pressure transmitter; The pressure transmitter is used to convert the gas pressure information in the form of a primary electrical signal acquired by the gas pressure sensor into gas pressure information in the form of a standard electrical signal, and send the information to the controller. 3. The automatic gluing system according to claim 1, further comprising: a spray head; The spray head is connected with the solenoid valve for atomizing and spraying the glue solution. 4. The automatic gluing system according to claim 3, further comprising: a glue tank; The glue tank is connected with the spray head for storing the glue solution and providing the glue solution to the spray head for spraying. 5. The automatic gluing system according to claim 3, further comprising: a pneumatic device; The pneumatic device includes an air compressor, an air source adjustment device, and a pneumatic triple; The air compressor is connected to the pneumatic triple piece through the air source adjustment device; The pneumatic device is connected with the spray head, and is used to provide power for atomization and spraying of the spray head. 6. The automatic gluing system according to claim 3, further comprising: a feeder; The feeder is connected with the motor, and is used to deliver the material to be glued to the spray head for atomized spraying. 7. The automatic gluing system according to claim 3, further comprising: a one-way throttle valve; One end of the one-way throttle valve is connected to the solenoid valve, and the other end is connected to the nozzle; The one-way throttle valve is used to control the speed of gas injection from the shower head. 8. The automatic gluing system according to any one of claims 1-7, characterized in that the solenoid valve is a direct-acting high-frequency solenoid valve. 9. an automatic gluing method based on the automatic gluing system described in any one of claims 1-8, is characterized in that, comprises the following steps: The frequency converter acquires the speed information of the motor and sends it to the controller; The gas pressure sensor acquires gas pressure information at the gas outlet of the nozzle and sends it to the controller; The controller outputs PWM pulses according to the speed information and the gas pressure information, and sends the PWM pulses to the solenoid valve; The solenoid valve adjusts the flow rate of gas entering the shower head according to the PWM pulse.