CN108724954A - A kind of printed electronics jet printer buffer-type constant temperature continuous ink supply device - Google Patents

Abstract

The invention belongs to the technical field of inkjet printed circuits, and specifically relates to a buffer type constant temperature continuous ink supply device for printing an electronic jet printer, which includes an ink supply mechanism, a heating mechanism, a constant temperature mechanism and a nozzle mechanism connected in sequence; the ink supply mechanism includes External ink cartridge and ink cartridge base; the middle position of the ink cartridge base is provided with an ink supply port; the heating mechanism includes a heated ink tank, an upper water level probe and a lower water level probe, a temperature probe and a heater; the middle position of the heated ink tank is provided with an ink inlet The ink inlet is connected to the ink supply port; the constant temperature mechanism includes a constant temperature ink tank, an impeller and a motor; the heating ink tank is connected to the constant temperature ink tank for supplying ink to the constant temperature ink tank; the impeller is located at the bottom of the constant temperature ink tank, and the motor It is arranged under the constant temperature ink tank, and the motor is driven and connected to the impeller; the nozzle mechanism includes a nozzle plate and several nozzles connected to the nozzle plate. It can improve the shortcomings of the inkjet system in the prior art, and can effectively solve the phenomenon of disconnection and blockage during jet printing due to too low temperature.

Description

A buffer type constant temperature continuous ink supply device for printed electronic jet printer

technical field

The invention belongs to the technical field of inkjet printed circuits, and in particular relates to a buffer type constant temperature continuous ink supply device for printed electronic jet printers.

Background technique

At present, the ink supply device of the existing printed electronic jet printer needs to add ink or replace the ink cartridge after the ink is used up, which cannot work continuously and greatly reduces the work efficiency. More importantly, the downtime when replacing the ink cartridge will cause the ink supply of the nozzle to be unstable, and the width of the printed line will be uneven, which will affect the printing quality. The dispersion and particle size of printed circuit board ink are relatively high, and the nature of the ink itself is relatively easy to precipitate, especially in cold winter, when the temperature is low, the ink is prone to precipitation, and the viscosity of the ink increases significantly, resulting in pipeline blockage and ink breakage.

In order to solve this problem, Chinese patent 201410578481.4 provides a continuous ink supply device, including a trolley base plate, an ink cartridge seat and an ink cartridge, the ink cartridge seat is provided with an ink cartridge, the trolley base plate is provided with an ink bottle seat, and the ink bottle seat An ink bottle is installed on the top of the ink bottle, and a pipe joint is provided at the bottom of the ink bottle. The pipe joint is connected to the ink cartridge installed on the ink cartridge seat through a conduit. The ink cartridge seat is installed on the connecting plate, and the connecting plate is installed on the trolley floor superior. When the ink continuous supply device is practical, it continuously supplies ink to the ink box through the ink bottle, thus increasing the continuous working capacity of the printer, improving the working efficiency of the printer, and having a good practical effect.

But it can't solve the problem that the viscosity of the ink tends to increase in a lower temperature environment, especially the ink dispersion and particle size of the printed circuit board are high, and the nature of the ink itself is relatively easy to precipitate. When encountering a low temperature environment , the viscosity of the ink is obviously increased, resulting in clogging the pipeline and causing ink breakage, which affects the printing quality; it also cannot solve the problem that the ink is prone to sedimentation or aggregation into fine particles when it is placed for a long time, and the precipitation of small particles in the ink is easy. It will cause blockage or even damage to the nozzle of the inkjet printer, and because the nozzle is expensive and the installation and cleaning are cumbersome, once the nozzle is blocked or damaged, it will not only affect the quality of printing, but also greatly reduce the work efficiency.

Another example is that Chinese patent 201510648344.8 provides a centralized ink supply device with automatic heating function, which includes several ink bottles, a storage seat for receiving the ink bottles, and an automatic heating mechanism. The storage seat is divided into upper and lower layers. , the upper layer of the receiving seat is provided with several storage tanks for storing the ink bottles, and the lower layer is used to store the automatic heating mechanism; when the temperature is lower than the set value, the ink in multiple ink bottles can be automatically heated at the same time, thereby reducing the number of ink bottles. The viscosity of the ink in each ink bottle improves the printing quality. On the one hand, it avoids the need to design a separate automatic heating mechanism for each ink bottle, which greatly saves the cost and makes the structure of the whole ink supply device simpler. However, it cannot solve the problem that the ink is prone to precipitate or aggregate into fine particles when the ink is left for a long time; it cannot be added ink or the ink cartridge needs to be replaced after the ink is used up, and it cannot work continuously, which greatly reduces the work efficiency. , more importantly, because the shutdown when replacing the ink cartridge will cause the ink supply of the nozzle to be unstable and the printed line width to be uneven, which will affect the printing quality.

Contents of the invention

This application provides a buffer type constant temperature continuous ink supply device for printing electronic jet printers, which can improve the shortcomings of the inkjet system in the prior art, and can effectively solve the phenomenon of disconnection and blockage during jet printing due to low temperature.

In order to achieve the above technical purpose, the technical solution adopted by this application is a buffer type constant temperature continuous ink supply device for printing electronic jet printers, which includes sequentially connected ink supply mechanism, heating mechanism, constant temperature mechanism and nozzle mechanism;

The ink supply mechanism includes an external ink cartridge and an ink cartridge base; the external ink cartridge is installed on the ink cartridge base in a replaceable manner; the middle position of the ink cartridge base is provided with an ink supply port;

The heating mechanism includes the heating ink tank, the upper water level probe and the lower water level probe, the temperature probe and the heater; There is an ink inlet in the middle of the ink tank; the ink inlet is connected to the ink supply port, and the external ink cartridge supplies ink to the heating ink tank through the ink supply port and the ink inlet;

The constant temperature mechanism includes a constant temperature ink tank, an impeller and a motor; the heating ink tank is connected to the constant temperature ink tank for supplying ink to the constant temperature ink tank; the impeller is set at the bottom of the constant temperature ink tank, and the motor is set under the constant temperature ink tank. on the impeller;

The nozzle mechanism includes a nozzle plate and a number of nozzles connected to the nozzle plate; the nozzle plate is connected to the other side of the constant temperature ink tank through a soft rubber tube; a second filter screen, a second ink pump and a micro flow sensor are sequentially arranged on the soft rubber tube; The second filter screen is located at the end of the soft hose at the thermostatic ink tank.

As an improved technical solution of the present invention, a first filter net is also included, and the first filter net is installed at the ink supply port of the ink cartridge base.

As an improved technical solution of the present invention, a controller is provided on the top of the heating ink tank, and the controller can respectively receive the information detected by the upper water level probe and the lower water level probe and control the opening or closing of the first ink pump; the controller can receive the temperature probe Detected information, and control the opening or closing of the heater.

As an improved technical solution of the present invention, the ink inlet is connected to the ink supply port through the first conduit; the first conduit is sequentially provided with a first electromagnetic valve and a first ink pump from the side of the ink supply port.

As an improved technical solution of the present invention, one side of the constant temperature ink tank is communicated with the heating ink tank through a second conduit, and the second conduit is located at one end of the heating ink tank and is provided with a second solenoid valve.

As an improved technical solution of the present invention, an early warning device is also included, and the early warning device is arranged in the external ink cartridge.

Beneficial effect

This device can effectively solve the phenomenon of disconnection and blockage during printing due to low temperature. With a buffer box, when the external ink tank is replaced, there is no need to stop the machine for replacement, which saves time and improves work efficiency and printing quality. The external ink cartridge of the device can be easily replaced by falling on the ink cartridge base. The base is equipped with a filter and can be removed for cleaning. The external ink cartridge pumps the ink into the heating ink tank through the ink pump, and observes the ink level through the water level probe. , and then heat, observe the temperature change through the temperature probe, and open the solenoid valve after heating to an appropriate temperature to make the ink flow into the constant temperature ink tank. This can solve the problem of clogging and disconnection due to the increase of ink viscosity in a lower temperature environment.

In addition, the constant temperature ink tank of this device has a buffering effect. When replacing the external ink cartridge, the first ink pump and the first electromagnetic valve are closed, and the ink stored in the constant temperature ink tank is used instead of printing, which plays a buffering role and effectively solves the problems caused by ink failure. Insufficient, the defect of stopping when the ink needs to be replaced, saves time, improves work efficiency and product quality. The bottom of the constant temperature ink tank is equipped with an impeller to effectively prevent the ink from settling. The ink is drawn by the ink pump, filtered for the second time, and then flows into the nozzle through the soft tube. There is a miniature flow sensor at the nozzle, which can control the flow value of the ink ejected from the nozzle.

Description of drawings

Figure 1 is a schematic diagram of the connection relationship between the heating ink tank and the constant temperature ink tank of the present application;

Fig. 2 is a schematic diagram of the structure of the ink supply device of the present application;

In the figure, 1. External ink cartridge; 2. Ink cartridge base; 3. Early warning device; 4. First filter; 5. First solenoid valve; 6. First conduit; 7. First ink pump; 8. Heater ;9. Upper water level probe; 10. Lower water level probe; 11. Temperature probe; 12. Controller; 13. Heating ink tank; 14. Second solenoid valve; 15. Second conduit; 16. Constant temperature mechanism; 17. Constant temperature Ink tank; 18. impeller; 19. rotating shaft; 20. motor; 21. second filter; 22. second ink pump; 23. soft hose; 24. micro flow sensor; 25. nozzle plate; 26. nozzle.

Detailed ways

In order to make the purpose and technical solutions of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. Based on the described embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Those skilled in the art can understand that, unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which this invention belongs. It should also be understood that terms such as those defined in commonly used dictionaries should be understood to have a meaning consistent with the meaning in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless defined as herein explain.

The meaning of "connection" in the present invention may be a direct connection between components or an indirect connection between components through other components.

As shown in Figure 1-2, a buffer type constant temperature continuous ink supply device for printed electronic jet printers, including sequentially connected ink supply mechanism, heating mechanism, constant temperature mechanism 16 and nozzle mechanism;

The ink supply mechanism includes an external ink cartridge 1 and an ink cartridge base 2; the external ink cartridge 1 is installed on the ink cartridge base 2 in a replaceable manner; the middle position of the ink cartridge base 2 is provided with an ink supply port; it also includes an early warning device 3, an early warning device 3 is located in the external ink cartridge 1; the early warning device 3 adopts the water level early warning device in the prior art, as shown in Chinese patent 201610651285.4.

The heating mechanism includes a heating ink tank 13, an upper water level probe 9, a lower water level probe 10, a temperature probe 11 and a heater 8; the upper water level probe 9, the lower water level probe 10, the temperature probe 11 and the heater 8 are arranged on The side wall of the heating ink tank 13; the middle position of the heating ink tank 13 is provided with an ink inlet; the ink inlet is connected to the ink supply port, and the external ink cartridge 1 supplies ink to the heating ink tank 13 through the ink supply port and the ink inlet; The ink inlet is communicated with the ink supply port through the first conduit 6; the first conduit 6 is sequentially provided with the first electromagnetic valve 5 and the first ink pump 7 from the side of the ink supply port; it also includes the first filter 4, the first filter 4 Install the ink supply port of the ink cartridge base 2, specifically the first conduit 6 is located at the port of the ink supply port; the top of the heating ink tank 13 is provided with a controller 12, and the controller 12 can respectively receive the upper water level probe 9 and the lower water level probe 9. The information detected by the water level probe 10 controls the opening or closing of the first ink pump 7 ; the controller 12 can receive the information detected by the temperature probe 11 and controls the opening or closing of the heater 8 .

Constant temperature mechanism 16 comprises constant temperature ink tank 17, impeller 18 and motor 20; Heating ink tank 13 is communicated with constant temperature ink tank 17, is used to supply ink to constant temperature ink tank 17; Impeller 18 is located at the bottom of constant temperature ink tank 17, and motor 20 is set Below the constant temperature ink tank 17, the motor 20 is driven and connected to the impeller 18; one side of the constant temperature ink tank 17 is communicated with the heating ink tank 13 through the second conduit 15, and the second conduit 15 is located at one end of the heating ink tank 13 and is provided with a second Solenoid valve 14.

The nozzle mechanism includes a nozzle plate 25 and several nozzles 26 connected to the nozzle plate 25; the nozzle plate 25 is communicated with the other side of the constant temperature ink tank 17 through a soft rubber tube 23; Two ink pumps 22 and a miniature flow sensor 24; the second filter screen 21 is located at the end of the soft rubber tube 23 at the thermostatic ink tank 17.

During specific use, the external ink cartridge 1 is located on the ink cartridge base 2, the external ink cartridge 1 can be easily replaced, and the first filter screen 4 is arranged on the ink cartridge base 2, which can filter the dregs in the ink and prevent the nozzle from being blocked. The first filter screen 4 can be removed for cleaning. When the ink in the external ink cartridge 1 is insufficient, the warning device 3 will give an alarm. A first conduit 6 is connected to the lower end of the ink cartridge base 2, and a first solenoid valve is connected to the first conduit 6. 5. The ink is pumped into the heating ink tank 13 through the first ink pump 7, and the heating ink tank 13 is connected with a controller 12, and the controller 12 controls the upper ink level and the lower ink level in the heating ink tank 13 and heats the ink The temperature is controlled, and the heater 8 is connected inside the heating ink tank 13 to heat the ink, and the temperature change is observed through the temperature probe 11 . When the temperature reaches normal temperature, the second electromagnetic valve 14 is opened, and the ink flows into the constant temperature ink tank 17 through the second conduit 15. The inner wall of the constant temperature ink tank 17 has a constant temperature device to keep the ink warm. There is an impeller 18 at the bottom of the constant temperature ink tank 17. The impeller 18 is connected with the motor 20 through the rotating shaft 19, and the ink in the constant temperature ink tank 17 is stirred by the impeller 18, so as to effectively prevent the ink from settling. The ink in the constant temperature ink tank 17 can always keep constant temperature, which solves the phenomenon of disconnection and blockage during printing due to too low temperature. In addition, when the ink in the external ink cartridge 1 is insufficient to replace it, close the first ink pump 7 and close the first solenoid valve 5 (to prevent air from entering when replacing the external ink cartridge 1), and the constant temperature ink tank 17 and the heating mechanism form a communication system. The device-type buffer device as shown in Figure 1 can replace ink cartridges for ink supply, solve the effect of continuing to print without stopping for replacement, save time, improve printing efficiency, and solve the problem of printing disconnection caused by frequent shutdowns Problems with print quality. The ink in the constant temperature ink tank 17 enters the soft rubber tube 23 after being filtered by the second filter screen 21 for the second time. The soft rubber tube 23 is connected with a micro flow sensor 24 to control the flow value of the ink flowing into the nozzle. The end of the soft rubber tube 23 is connected with The nozzle board 25 supplies ink to the nozzle board 25 through the second ink pump 22 , and several nozzles 26 are distributed on the nozzle board 25 .

The above is only the embodiment of the present invention, and its description is relatively specific and detailed, but it should not be construed as limiting the patent scope of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims (6)

1. A buffer type constant temperature continuous ink supply device for printing an electronic jet printer, characterized in that it includes an ink supply mechanism, a heating mechanism, a constant temperature mechanism and a nozzle mechanism connected in sequence; The ink supply mechanism includes an external ink cartridge and an ink cartridge base; the external ink cartridge is installed on the ink cartridge base in a replaceable manner; the middle position of the ink cartridge base is provided with an ink supply port; The heating mechanism includes the heating ink tank, the upper water level probe and the lower water level probe, the temperature probe and the heater; There is an ink inlet in the middle of the ink tank; the ink inlet is connected to the ink supply port, and the external ink cartridge supplies ink to the heating ink tank through the ink supply port and the ink inlet; The constant temperature mechanism includes a constant temperature ink tank, an impeller and a motor; the heating ink tank is connected to the constant temperature ink tank for supplying ink to the constant temperature ink tank; the impeller is set at the bottom of the constant temperature ink tank, and the motor is set under the constant temperature ink tank. on the impeller; The nozzle mechanism includes a nozzle plate and a number of nozzles connected to the nozzle plate; the nozzle plate is connected to the other side of the constant temperature ink tank through a soft rubber tube; a second filter screen, a second ink pump and a micro flow sensor are sequentially arranged on the soft rubber tube; The second filter screen is located at the end of the soft hose at the thermostatic ink tank. 2. A buffer type constant temperature continuous ink supply device for printed electronic jet printer according to claim 1, further comprising a first filter installed at the ink supply port of the ink cartridge base. 3. A buffer type constant temperature continuous ink supply device for printing an electronic jet printer according to claim 1, characterized in that a controller is provided on the top of the heating ink tank, and the controller can respectively receive the upper water level probe and the lower water level probe. The information detected by the probe controls the opening or closing of the first ink pump; the controller can receive the information detected by the temperature probe and controls the opening or closing of the heater. 4. A buffer type constant temperature continuous ink supply device for printing an electronic jet printer according to claim 1, wherein the ink inlet is communicated with the ink supply port through the first conduit; the first conduit is from the ink supply port side A first solenoid valve and a first ink pump are provided in sequence. 5. A buffer type constant temperature continuous ink supply device for printed electronic jet printer according to claim 1, characterized in that one side of the constant temperature ink tank is connected to the heating ink tank through the second conduit, and the second conduit is located at the heating One end of the ink tank is provided with a second solenoid valve. 6 . A buffer type constant temperature continuous ink supply device for printing electronic jet printer according to claim 1 , characterized in that it also includes an early warning device, and the early warning device is arranged in the external ink cartridge.