CN104476928A - Liquid spraying device of digital printing machine and control method thereof - Google Patents

Abstract

The invention provides a liquid spraying device of a digital printing machine and a control method of the liquid spraying device. According to the liquid spraying device of the digital printing machine and the control method of the liquid spraying device, a power mechanism is controlled to deliver compressed air into a liquid storage tank to press treating fluid in the liquid storage tank into a main pipeline, and then the treating fluid enters all branch pipelines, so that when first solenoid valves mounted at the outlet ends of all the branch pipelines are opened, the treating fluid is sprayed from nozzles mounted at the outlet ends of the first solenoid valves to the surface of a printing medium on a platform located below the nozzles. In this way, the treating fluid is automatically sprayed to the surface of the printing medium, it is guaranteed that the treating fluid sprayed onto the printing medium is uniform, time and labor are saved, and the treating fluid spraying efficiency is greatly improved.

Description

A digital printing machine liquid spray device and its control method

technical field

The present invention mainly relates to the technical field of printing, and more specifically relates to a liquid spraying device of a digital printing machine and a control method thereof.

Background technique

The digital printing machine is a "non-contact" inkjet printing high-tech digital printing equipment, so it is not limited by any material, and can be printed on cotton, polyester, polyester-cotton blended, Lycra, silk, Color photoprinting on surfaces such as leather, denim, linen and other textiles to enhance the aesthetics of textiles.

Wherein, when printing non-white textiles, it is necessary to print a layer of white ink on the textiles before printing specific patterns, and a layer of treatment liquid must be sprayed on the surface of the textiles before printing the white ink. In the prior art, the treatment liquid is usually put into a liquid spray device such as an electric watering pot or a manual spray gun, and then the staff holds the liquid spray device to manually spray the treatment liquid on the surface of the textile, and then the digital printing machine completes the follow-up process. Color photo print.

However, the applicant found that the existing liquid spraying device must be manually completed by the staff, which is time-consuming and laborious, and the treatment liquid sprayed on the surface of the textile is often uneven due to the difficulty of controlling the liquid spraying device, thereby affecting digital printing. The printing quality in the later stage of the machine.

Contents of the invention

In view of this, the present invention proposes a digital printing machine liquid spraying device and its control method, which solves the problem that the existing liquid spraying device must be manually sprayed by the staff, which is time-consuming and laborious, and is often caused by the spraying. The liquid device is difficult to control, which leads to the technical problem of uneven pretreatment liquid sprayed on the surface of the textile.

In order to achieve the above object, the application provides the following technical solutions:

A liquid spraying device for a digital printing machine, comprising:

A liquid storage tank for holding the treatment liquid;

Connected with the liquid storage tank, the main pipeline used to transmit the treatment liquid in the liquid storage tank;

Connected with the liquid storage tank, a power mechanism for controlling the transmission of the treatment liquid in the liquid storage tank in the main pipeline;

a plurality of branch pipelines connected to different locations of the main pipeline;

A plurality of first solenoid valves connected to the plurality of branch pipelines in one-to-one correspondence;

a nozzle mounted on the output of each first solenoid valve;

A platform for placing printing media under the ejection ports of all nozzles;

a kinematic mechanism mounted below the platform;

A controller that is connected with the plurality of first electromagnetic valves and the moving mechanism, and is used for controlling the opening and closing of the first electromagnetic valves, and controlling the moving mechanism to drive the platform to perform feeding motion.

Preferably, it also includes:

base frame with beams;

The same number as the plurality of first solenoid valves, a plurality of first solenoid valve mounting seats for fixing the first solenoid valves on the beam of the base frame;

Arranging in parallel with the platform, a pressure roller for overcoming the wool and fibers on the surface of the printing medium on the platform;

The pressure roller control mechanism is respectively connected with the power mechanism and the pressure roller, and uses the power provided by the power mechanism to control the vertical movement and rolling of the pressure roller.

Preferably, it also includes:

pressure regulating valve, the power mechanism is connected to the top of the liquid storage tank through the pressure regulating valve;

a liquid outlet valve located outside the liquid storage tank and mounted on the main pipeline;

The air release valve and the liquid inlet valve installed on the top of the liquid storage tank, wherein:

When the treatment liquid inside the liquid storage tank reaches the lower limit value, the liquid outlet valve and the pressure regulating valve are controlled to close, the air release valve is opened, and the liquid inlet valve is opened after a preset condition is met.

Preferably, it also includes:

A transparent pipe installed on the outside of the liquid storage tank and communicated with the inside of the liquid storage tank.

Preferably, the base frame includes: a beam, and a first beam mounting seat and a second beam mounting base respectively connected to two ends of the beam in one-to-one correspondence.

Preferably, the pressure roller control mechanism includes:

A first air cylinder and a second air cylinder are respectively installed one-to-one above the two ends of the beam, and both the first air cylinder and the second air cylinder are connected to the power mechanism;

a first cylinder connecting rod connected to the first cylinder, and a second cylinder connecting rod connected to the second cylinder;

Wherein, the two ends of the pressure roller are installed on the connecting rod of the first air cylinder and the connecting rod of the second air cylinder respectively.

Preferably, it also includes:

If the second electromagnetic valve is connected with the controller, then the power mechanism is respectively connected with the first cylinder and the second cylinder through the second electromagnetic valve.

A control method for a liquid spraying device of a digital printing machine, which is applied to the above-mentioned liquid spraying device of a digital printing machine, and the device includes: a power mechanism, a liquid storage tank, a main pipeline, a branch pipeline, a first solenoid valve, a nozzle, and a platform , motion mechanism and controller, then described method comprises:

Start the power mechanism, and pump the treatment fluid in the liquid storage tank into the main pipeline;

When the moving mechanism drives the platform to the bottom of the nozzle, the controller controls the first electromagnetic valve to open, and sprays the processing liquid in the branch pipeline to the printing medium on the platform through the nozzle.

Preferably, when the liquid spray device of the digital printing machine includes a pressure roller and a pressure roller control mechanism, the method further includes:

While spraying the treatment liquid in the branch pipeline to the printing medium on the platform through the nozzle, controlling the pressure roller control mechanism to move the pressure roller down to the surface of the printing medium on the platform;

Controlling the motion mechanism to drive the platform to move in parallel to the end away from the printing medium to be sprayed;

When the spraying of the processing liquid is completed, the first electromagnetic valve is controlled to close, and the pressing roller control mechanism is controlled to raise the pressing roller away from the surface of the printing medium on the platform.

Preferably, when the liquid storage tank is provided with a pressure regulating valve, a liquid outlet valve, an air release valve and a liquid inlet valve, before spraying the treatment liquid, the method further includes:

When the liquid level of the processing liquid in the liquid storage tank reaches the lower limit value, control the liquid outlet valve and the pressure regulating valve to close, and open the air release valve;

When the preset conditions are met, the liquid inlet valve is opened, and the processing liquid is poured into the liquid storage tank through the liquid inlet valve;

When the liquid level of the treatment liquid in the liquid storage tank reaches a normal value, close the air release valve and the liquid inlet valve;

controlling the pressure regulating valve to open, and making the pressure regulating valve work at a preset value;

The power mechanism is controlled to deliver compressed air into the liquid storage tank through the pressure regulating valve, and open the liquid outlet valve.

It can be seen that the present invention provides a digital printing machine liquid spray device and its control method. When the processing liquid contained in the liquid storage tank reaches a normal value, the power mechanism is controlled to deliver compressed air to the inside of the liquid storage tank, thereby The treatment hydraulic pressure in the liquid storage tank enters the main pipeline, and then enters the branch pipelines located at different positions of the main pipeline, so that when the first electromagnetic valve installed at the outlet end of each branch pipeline is opened, the treatment liquid flows from the first electromagnetic valve to the main pipeline. The nozzles at the outlet end spray out, and before opening the first solenoid valve, use the controller to control the movement mechanism connected to it to drive the platform to move to the bottom of each nozzle, and then control the first solenoid valve to open, so as to realize the control of the platform. The automatic jetting of the treatment liquid on the printing medium not only ensures that the treatment liquid sprayed onto the printing medium is uniform, but also saves time and effort, and greatly improves the efficiency of the treatment liquid spraying. In addition, after spraying the treatment liquid on the surface of the printing medium, it can be directly controlled The motion mechanism moves the platform to the bottom of the printing trolley for digital printing, which is very convenient and does not require manual handling, which greatly saves labor.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is a schematic structural view of an embodiment of a liquid spraying device of a digital printing machine according to the present invention;

Fig. 2 (a) is the side view before spraying of a digital printing machine spray device of the present invention;

Fig. 2 (b) is a side view in the spraying of a digital printing machine liquid spraying device of the present invention;

Fig. 2 (c) is a side view after spraying of a liquid spraying device of a digital printing machine of the present invention;

Fig. 3 is a schematic flowchart of an embodiment of a control method of a liquid spray device of a digital printing machine according to the present invention;

Fig. 4 is a partial flowchart of an embodiment of a control method of a liquid spraying device of a digital printing machine according to the present invention.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The invention provides a digital printing machine liquid spraying device and its control method. When the processing liquid contained in the liquid storage tank reaches the normal value, the power mechanism is controlled to deliver compressed air to the inside of the liquid storage tank, so that the liquid storage tank The treatment hydraulic pressure in the tank enters the main pipeline, and then enters the branch pipelines located at different positions of the main pipeline, so that when the first electromagnetic valve installed at the outlet end of each branch pipeline is opened, the treatment liquid is sprayed from the nozzle at the outlet end of the first electromagnetic valve. Among them, before opening the first electromagnetic valve, use the controller to control the movement mechanism connected to it to drive the platform to move to the bottom of each nozzle, and then control the first electromagnetic valve to open, so as to realize the printing medium on the platform Automatic jetting of treatment liquid not only ensures that the treatment liquid sprayed onto the printing medium is uniform, but also saves time and effort and greatly improves the efficiency of treatment liquid spraying. In addition, after spraying the treatment liquid on the surface of the printing medium, it can directly control the movement mechanism to move the platform It is very convenient to move to the bottom of the printing trolley for digital printing, without manual handling, which greatly saves labor.

With reference to the structural schematic diagram of an embodiment of a liquid spraying device for a digital printing machine shown in Figure 1, the liquid spraying device for a digital printing machine may include:

A liquid storage tank 10 for holding the processing liquid.

Connected to the liquid storage tank 10, the main pipeline 20 used to transmit the treatment liquid in the liquid storage tank 10;

It is connected with the liquid storage tank 10 and is used for controlling the power mechanism 30 that the treatment liquid in the liquid storage tank 10 is transported in the main pipeline 20 .

Wherein, the power mechanism 30 may be a compressed air supply mechanism, etc., but is not limited thereto.

A plurality of branch pipes 40 connected to different positions of the main pipe 20 (only four branch pipes are taken as an example for illustration in FIG. 1 ).

A plurality of first solenoid valves 50 connected to the plurality of branch pipelines 40 in one-to-one correspondence.

Wherein, the number of the first solenoid valve 50 is the same as that of the branch pipeline 40, as shown in Fig. 1, four first solenoid valves are taken as an example for illustration, in practical applications, the first solenoid valve 50 may be a normally closed solenoid valve , such as a direct-acting solenoid valve, which is not specifically limited in the present invention, as long as it can be controlled to be in two states of open and closed.

A nozzle 60 installed at the output end of each first solenoid valve 50 .

In this embodiment, the nozzle 60 may spray water with a fan shape at a certain angle, and the position of the nozzle can be adjusted up, down, left, and right. The present invention does not specifically limit the structure of the nozzle 60 and the angle of the fan shape.

In addition, it should be noted that the distance between adjacent branch pipes on the main pipe can be based on the range of the treatment liquid sprayed by adjacent nozzles, so that the treatment liquid sprayed by two adjacent nozzles is consistent with the contact line of the printing medium. (that is, the contact line between the treatment liquid ejected from the two nozzles and the printing medium can be just in contact, or can be overlapped, and the present invention does not specifically limit this), so as to ensure that any position on the printing medium can be sprayed to the processing liquid. liquid.

Located below the ejection openings of all the nozzles 60 is a platform 70 for placing printing media.

Optionally, the above-mentioned multiple nozzles 60 may be located on the same horizontal plane and arranged parallel to the platform 70 .

A motion mechanism 80 installed below the platform 70;

It is connected with the plurality of first solenoid valves 50 and the movement mechanism 80, and is used to control the opening and closing of the first solenoid valves 50, and control the movement mechanism 80 to drive the platform 70 to perform feed movement control device 90.

In the practical application of this embodiment, before spraying the treatment liquid, the control platform is located at the position shown in Figure 2(a), and when it is determined that the treatment liquid contained in the liquid storage tank is sufficient, The upper space in the tank conveys compressed air, so that the treatment hydraulic pressure in the liquid storage tank enters the main pipeline, and then enters the branch pipelines at different positions of the main pipeline. At this time, if the platform is in place, the platform is brought under the nozzle, In the position shown in Figure 2(b), the first electromagnetic valve installed at the outlet of each branch pipeline is controlled to open, so that the processing liquid is ejected from the nozzle installed at the outlet of each first electromagnetic valve, thereby realizing printing on the platform. The automatic spraying of the treatment liquid on the medium not only ensures that the treatment liquid sprayed onto the printing medium is uniform and controllable, but also saves time and effort and greatly improves the spraying efficiency of the treatment liquid. In addition, after spraying the treatment liquid on the surface of the printing medium, the first The solenoid valve closes and directly controls the motion mechanism to move the platform to the bottom of the printing trolley for digital printing, which is very convenient and does not require manual handling, which greatly saves labor.

As another embodiment of the present invention, as shown in FIG. 1 , the liquid spraying device of the digital printing machine may also include: a base frame 100 (not shown in FIG. 1 ), a plurality of first electromagnetic valve mounting seats 110, and a pressure roller 120. And pressure roller control mechanism 130 (not shown in Fig. 1), wherein:

The base frame 100 has a beam for installing the first solenoid valve.

Optionally, the base frame 100 may specifically include: a beam 101 , and a first beam mounting base 102 and a second beam mounting base 103 respectively connected to two ends of the beam 101 in a one-to-one correspondence. It should be noted that the structure of the first beam mounting base 102 and the second beam mounting base 103 may be the same, but the structure of the base frame 100 is not limited thereto.

Wherein, the crossbeam 101 can be respectively fixed with the first crossbeam mount 102 and the second crossbeam mount 103 by bolts, specifically, the crossbeam can be provided with a mounting groove (as shown in Figure 1, the mounting groove can be arranged on the crossbeam The middle position of the front and back of the crossbeam, but not limited thereto), the first crossbeam mount 102 and the second crossbeam mount 103 are also provided with waist grooves, then in this embodiment, the installation groove of the crossbeam 101 can be passed through the bolt It is connected with the waist grooves of the first beam mounting base 102 and the second beam mounting base 103, and moves on the waist grooves of the first beam mounting base 102 and the second beam mounting base 103 through the bolt to adjust the installation of the beam 101 high.

It should be noted that the structure of the above-mentioned base frame 100 is not limited to the above-mentioned one structure, and the connection method between the beam 101 and the first beam mounting base 102 and the second beam mounting base 103 is not a bolt connection mode, Those skilled in the art can make changes according to actual needs, and the present invention will not be described in detail here.

The number of the plurality of first solenoid valve mounting seats 110 is the same as that of the plurality of first solenoid valves 50 , and are used to fix the first solenoid valves 50 on the beam of the base frame 100 .

Wherein, the distance between two adjacent first solenoid valve mounting seats 110 can be determined according to the distance between the above nozzles, which will not be described in detail in the present invention.

Optionally, the first solenoid valve mounting seat 110 can be specifically installed on the mounting groove of the beam 101 through bolts, and according to actual needs, the distance between the first solenoid valve mounting seats 110 can be adjusted through the bolts to ensure The treatment liquid sprayed onto the printing medium can evenly cover the white ink area on the printing medium.

Based on the above-mentioned structure, each branch pipe 40 in the present invention can be flexibly connected with the main pipe 20, that is, the angle between each branch pipe 40 and the main pipe 20 can be changed arbitrarily. Therefore, the branch pipe 40 and the main pipe 20 All can utilize soft material to make, as plastic hose, rubber hose etc., the present invention does not enumerate one by one here again.

The pressing roller 120 can be arranged parallel to the platform 70 , and is used to press down the hairs and fibers on the surface of the printing medium on the platform 70 .

Wherein, the surface of the pressure roller 120 can be wrapped with a layer of corrosion-resistant material, such as rubber, etc., which is not specifically limited in the present invention, so as to reduce the replacement frequency of the pressure roller, and further reduce the maintenance cost of the liquid spraying device.

The pressure roller control mechanism 130 is respectively connected with the power mechanism 30 and the pressure roller 120 , and uses the power provided by the power mechanism 30 to control the vertical movement and rolling of the pressure roller 120 .

In the practical application of this embodiment, when the area where the treatment liquid needs to be sprayed is below the nozzle, the pressure roller control mechanism 130 can be controlled to operate while the first solenoid valve 50 is opened, so that the pressure roller 120 naturally falls on the platform to print the medium (such as textiles), and then by controlling the press roller 120 to roll on the surface of the printing medium to overwhelm the wool and fibers on the surface of the printing medium, thereby laying the foundation for subsequent printing of the printing medium and ensuring the printing quality.

Specifically, combined with the position structure diagrams in Figure 2(a), (b) and (c), it can be seen that when the platform reaches the position shown in Figure 2(a) and the preparation of the treatment liquid is completed, the pressure regulating valve can be turned on at the same time 50 is opened, the pressure roller 120 is lowered onto the platform, and at the same time, the platform is controlled to move in the direction of the arrow in the figure, so that the pressure roller 120 is controlled to roll on the platform while spraying the treatment liquid.

Optionally, the pressure roller control mechanism 130 may specifically include: a first air cylinder 131, a second air cylinder 132, a first air cylinder connecting rod 133 and a second air cylinder connecting rod 134, wherein:

The first cylinder 131 and the second cylinder 132 are respectively installed above the two ends of the beam 101, and the first cylinder 131 and the second cylinder 132 are connected to the power mechanism 30; the first cylinder connecting rod 133 and The first air cylinder 131 is connected to each other, and the second air cylinder connecting rod 134 is connected to the second air cylinder 132 .

Wherein, the two ends of the pressure roller 120 are respectively mounted on the first cylinder connecting rod 133 and the second cylinder connecting rod 134, specifically, the first cylinder connecting rod 133 and the second cylinder connecting rod 134 can be provided with a waist groove, and then the two ends of the pressure roller 120 are movably installed on the waist groove, so that the pressure roller 120 can move up and down in the waist groove of the first cylinder connecting rod 133 and the second cylinder connecting rod 134 and free scrolling.

It should be noted that the above-mentioned first cylinder 131 and the second cylinder 132 can be cylinders with the same structure, and the structure of the first cylinder connecting rod 133 and the second cylinder connecting rod 134 can be the same. In addition, the present invention controls the pressure roller The specific structure of 130 is not limited, as long as it is not determined by those skilled in the art through creative efforts, it all belongs to the protection scope of the present invention.

Optionally, the liquid spraying device of the digital printing machine may also include a second solenoid valve 140 connected to the controller 90, then the first cylinder 131 and the second cylinder 132 will be connected to the power mechanism 30 through the second solenoid valve 140 , the controller 90 controls the opening and closing of the second solenoid valve 140 .

Specifically, when it is necessary to spray the treatment liquid, open the second solenoid valve 140, and the compressed air output by the power mechanism 30 will control the ejection of the first cylinder 131 and the second cylinder 132 through the second solenoid valve 140, so that the pressure The roller 120 naturally falls to the surface of the printing medium, and rolls against the platform to overwhelm the wool and fibers. After the treatment liquid is sprayed, the power mechanism controls the retraction of the first air cylinder 131 and the second air cylinder 132 through the second electromagnetic valve 140 , thereby driving the pressure roller 120 to rise away from the surface of the printing medium. Afterwards, the controller 90 can control the platform 70 to continue moving to the bottom of the printing trolley for digital printing, and after the printing is completed, control the movement mechanism 80 to drive the platform 70 back, and remove the printing medium for subsequent processes.

Wherein, the controllers in the above-mentioned embodiments can be single-chip microcomputers, MCUs, etc., and in actual application, the pre-written control program can be loaded into the controller according to the process control flow, thus, it is only necessary to start the controller The control program in the machine can automatically complete the above-mentioned treatment liquid injection and printing processes, which is very convenient. It should be noted that, for the preloaded control program, those skilled in the art can write it according to the above control flow, and the present invention will not describe it in detail here.

Optionally, on the basis of the above-mentioned embodiments, the liquid spraying device of the digital printing machine may further include: a pressure regulating valve 150, a liquid outlet valve 160, an air release valve 170 and a liquid inlet valve 180, wherein:

The pressure regulating valve 150 can be installed on the top of the liquid storage tank 10 , so that the power mechanism 30 communicates with the liquid storage tank 10 through the pressure regulating valve 150 .

The liquid outlet valve 160 is located outside the liquid storage tank 10 and installed on the main pipe 20 .

Based on this, in the actual application of this implementation, after the pressure regulating valve 150 can be preset to a pressure value, the power mechanism 30 will deliver compressed air to the upper space of the liquid storage tank 10 accordingly, so that the storage tank 100 The processing liquid inside the liquid tank 10 is pressed into the main pipeline 20 through the liquid outlet valve 160 . It should be noted that, during this process, both the air release valve 170 and the liquid inlet valve 180 are in a closed state, while the liquid outlet valve 160 is in an open state.

Air release valve 170 and liquid inlet valve 180 are both installed on the top of the liquid storage tank 10, when the processing liquid inside the liquid storage tank 10 is insufficient, that is, when the liquid level of the processing liquid reaches the lower limit value, the liquid outlet valve is controlled 160 and the pressure regulating valve 150 are closed, and the air release valve 170 is opened, so that the compressed air inside the liquid storage tank 10 is output through the air release valve, and when the preset conditions are met, the liquid inlet valve 180 is opened again, The treatment liquid is poured into the liquid storage tank 10 from the liquid inlet valve 180 until the liquid level reaches a normal value or an upper limit.

Among them, the above-mentioned preset condition can be that the compressed gas in the liquid storage tank is released, so that the air pressure inside and outside the liquid storage tank is the same, because in the actual deflation process, there will be a sound at the purge valve, therefore, the sound can be passed It should be noted that the present invention is not limited thereto.

Optionally, in order to facilitate observation of the capacity of the treatment liquid inside the liquid storage tank 10, at least one transparent pipe 190 communicating with the inside of the liquid storage tank 10 can be installed outside the liquid storage tank 10, as shown in Figure 1, Wherein, in order to accurately determine the liquid level of the treatment liquid inside the liquid storage tank 10 , a scale can be set on the transparent pipe 190 .

In addition, in the present invention, the muffler 200 can also be provided on the deflation valve 170 so as to reduce the noise when the inside of the liquid storage tank 10 is deflated.

Wherein, the above-mentioned liquid outlet valve 160, air release valve 170 and liquid inlet valve 180 can specifically be ball valves, but not limited thereto.

It can be seen that, in the embodiment of the present invention, the platform on which the printing medium is placed is driven to the bottom of the nozzle by controlling the motion mechanism, and then the first solenoid valves are opened, so that the processing liquid in the liquid storage tank passes through the main pipeline, the branch pipeline and the nozzle in sequence. Spraying onto the printing medium realizes the automatic and uniform spraying of the treatment liquid on the area that needs to be sprayed, and improves the working efficiency of the treatment liquid spraying; moreover, while spraying the treatment liquid, the pressure roller is lowered to the printing surface by the pressure roller control mechanism. The surface of the medium, and make it roll with the movement of the platform to overwhelm the wool and fibers on the surface of the printing medium, so that the subsequent digital printing has higher precision and higher printing efficiency.

Referring to FIG. 3 , a schematic flow chart of an embodiment of a control method for a liquid spray device of a digital printing machine according to the present invention, the method is applied to the liquid spray device of a digital printing machine described in the above embodiment. For the specific structure of the liquid spray device The content described in the above-mentioned embodiments may be referred to, and the embodiments of the present invention will not be repeated here. When the processing liquid inside the liquid storage tank 10 is sufficient, the control method may specifically include the following steps:

Step S31: start the power mechanism, and pump the treatment hydraulic pressure in the liquid storage tank into the main pipeline.

Step S32: When controlling the movement mechanism to drive the platform to move below the nozzle, control the first electromagnetic valve to open, and spray the processing liquid in the branch pipeline to the printing medium on the platform through the nozzle.

Wherein, it should be noted that when the nozzle sprays the treatment liquid to the platform, the control motion mechanism drives the platform to move at a constant speed, so as to ensure that the treatment liquid sprayed by the printing medium is uniform.

Optionally, when the liquid spray device of the digital printing machine includes a pressure roller and a pressure roller control mechanism, the specific connection structure of the pressure roller and the pressure roller control mechanism can be described with reference to the corresponding part of the above embodiment, and the present invention will not repeat them here. , the control method may further include:

Control the pressure roller control mechanism to move the pressure roller down to the surface of the printing medium on the platform, and control the movement mechanism to drive the platform to move in parallel to the end away from the printing medium to be sprayed, so that the pressure roller and the platform roll relatively to overwhelm the surface of the printing medium wool and fibers.

When the spraying of the processing liquid is completed, the first solenoid valve is controlled to close, and the pressure roller control mechanism is controlled to raise the pressure roller so as to separate from the printing medium on the platform.

In addition, when the liquid storage tank is provided with a pressure regulating valve, a liquid outlet valve, an air release valve, and a liquid inlet valve, the connection relationship between these valves can refer to the description of the corresponding part of the above-mentioned device embodiment. No more details, based on this, before spraying the treatment liquid, the control method proposed in this embodiment may also include:

Step S41: When the liquid level of the processing liquid in the liquid storage tank reaches the lower limit, control the liquid outlet valve and the pressure regulating valve to close, and open the air release valve.

Step S42: When the preset condition is satisfied, the liquid inlet valve is opened, and the processing liquid is poured into the liquid storage tank through the liquid inlet valve.

Wherein, the preset time can be determined according to the current pressure inside the liquid storage tank and the discharge speed of the compressed air, which is not specifically limited in the present invention, and the preset condition can specifically be that the compressed gas in the liquid storage tank is released, so that The air pressure inside and outside the liquid storage tank is the same.

Step S43: When the liquid level of the processing liquid in the liquid storage tank reaches a normal value, close the air release valve and the liquid inlet valve.

Step S44: Control the pressure regulating valve to open, and make the pressure regulating valve work at a preset value.

Wherein, the preset value of the pressure regulating valve to be operated can be determined according to the capacity of the liquid storage tank and the capacity of the processing liquid currently contained, and the present invention does not specifically limit the specific value.

Step S45: Control the power mechanism to deliver compressed air into the liquid storage tank through the outlet pressure regulating valve, and open the outlet valve.

It can be seen that the embodiment of the present invention ensures the injection requirement of the treatment liquid by controlling the closing of the pressure regulating valve, the liquid outlet valve, the air release valve and the liquid inlet valve, and realizes the automatic delivery of the treatment liquid to the nozzle, saving time and effort. The working efficiency of liquid spraying is greatly improved.

Optionally, in the above-mentioned embodiments of the present invention, various prompting devices connected to the controller can also be provided to prompt the working status of each component, so that the staff can keep abreast of the current working status of the liquid spraying device, such as when the nozzle When working normally, output the first prompt information, when the pressure roller works normally, output the second prompt information, when the platform works normally, output the third prompt information, etc., the present invention will not list them one by one here. Those determined by creative efforts in the field of technology all belong to the scope of protection of the present invention.

Wherein, the prompting device may specifically be an indicator light, a buzzer, a voice module or a display, etc., which are not specifically limited in the present invention.

It should be noted that, with regard to the above-mentioned embodiments, relative terms such as first, second, etc. are only used to distinguish one component from another, and do not necessarily require or imply any relationship between these components. This actual relationship or sequence.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. For the methods disclosed in the embodiments, reference may be made to the descriptions of the corresponding parts in the device embodiments.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. a digital decorating machine liquid-jet device, is characterized in that, comprising:

For holding the liquid reserve tank for the treatment of fluid;

Be connected with described liquid reserve tank, for transmitting the main pipeline of the treatment fluid in described liquid reserve tank;

Be connected with described liquid reserve tank, the actuating unit that the treatment fluid for controlling in described liquid reserve tank transmits in described main pipeline;

The multiple laterals be connected with the diverse location of described main pipeline;

Multiple first magnetic valves connected one to one with described multiple lateral;

Be arranged on the nozzle of each the first magnetic valve output;

Below the jet being positioned at all nozzles, for placing the platform of print media;

Be arranged on the motion below described platform;

Be connected with described motion with described multiple first magnetic valve, for controlling described first magnetic valve open and close, and control described motion and drive described platform to make the controller of feed motion.

2. device according to claim 1, is characterized in that, also comprises:

There is the pony sill of crossbeam;

Identical with described multiple first magnetic valve quantity, for described first magnetic valve being fixed on the multiple first magnetic valve mount pads on the crossbeam of described pony sill;

Arrange with described platform parallel, for the pressure roller of the hair and fiber that overwhelm the surface of print media on described platform;

Be connected with described pressure roller with described actuating unit respectively, the power utilizing described actuating unit to provide, controls the pressure roller controlling organization that described pressure roller moves up and down and rolls.

3. device according to claim 2, is characterized in that, also comprises:

Pressure regulator valve, then described actuating unit is connected with the top of described liquid reserve tank by described pressure regulator valve;

Be positioned at described liquid reserve tank outside and the liquid valve be arranged on described main pipeline;

Be arranged on vent valve and the liquid feed valve at described liquid reserve tank top, wherein:

When described liquid reserve tank inter-process liquid reaches lower limit, control described liquid valve and described pressure regulator valve and close, open described vent valve, and meet pre-conditioned after, open liquid feed valve.

4. device according to claim 3, is characterized in that, also comprises:

Be arranged on outside described liquid reserve tank, and the transparent pipeline be communicated with described liquid reserve tank inside.

5. the device according to any one of claim 1-4, is characterized in that, described pony sill comprises: crossbeam, and the first crossbeam mount pad be connected with described crossbeam two ends one_to_one corresponding respectively and second cross beam mount pad.

6. device according to claim 5, is characterized in that, described pressure roller controlling organization comprises:

The first cylinder that one_to_one corresponding is installed above described crossbeam two ends respectively and the second cylinder, and described first cylinder is all connected with described actuating unit with described second cylinder;

With the first cylinder connecting rod of described first cylinders, and with the second cylinder connecting rod of described second cylinders;

Wherein, the two ends of described pressure roller are arranged on described first cylinder connecting rod and described second cylinder connecting rod respectively.

7. device according to claim 6, is characterized in that, also comprises:

The second magnetic valve be connected with described controller, then described actuating unit by described second magnetic valve respectively with described first cylinder and described second cylinders.

8. the control method of a digital decorating machine liquid-jet device, it is characterized in that, be applied to the digital decorating machine liquid-jet device as described in any one of claim 1-7, described device comprises: actuating unit, liquid reserve tank, main pipeline, lateral, the first magnetic valve, nozzle, platform, motion and controller, then described method comprises:

Start described actuating unit, the treatment fluid in described liquid reserve tank is pressed into described main pipeline;

When described motion drives below described platform to described nozzle, controller controls described first magnetic valve and opens, and the treatment fluid in described lateral is sprayed to the print media on described platform by described nozzle.

9. method according to claim 8, is characterized in that, when described digital decorating machine liquid-jet device comprises pressure roller and pressure roller controlling organization, described method also comprises:

While the treatment fluid in described lateral is sprayed to the print media on described platform by described nozzle, control described pressure roller controlling organization and described pressure roller is displaced downwardly to surface of print media on described platform;

Controlling described motion drives described platform to move in parallel to the one end away from print media to be painted;

When treatment fluid has sprayed, control described first solenoid closure, and controlled described pressure roller controlling organization and described pressure roller to be risen the surface of print media left on described platform.

10. method according to claim 9, is characterized in that, when described liquid reserve tank being provided with pressure regulator valve, liquid valve, vent valve and liquid feed valve, before carrying out treatment fluid injection, described method also comprises:

When the liquid level of the treatment fluid in described liquid reserve tank reaches lower limit, control described liquid valve and described pressure regulator valve and close, and open described vent valve;

When meet pre-conditioned after, open liquid feed valve, in described liquid reserve tank, pour treatment fluid by described liquid feed valve into;

When the liquid level of the treatment fluid in described liquid reserve tank reaches normal value, closed described vent valve and described liquid feed valve;

Control described pressure regulator valve to open, and make described pressure regulator valve be operated in preset value;

Control actuating unit and in described liquid reserve tank, carry compressed air by described pressure regulator valve, and open described liquid valve.