Multifunctional ink-jet printer

Abstract

A multifunctional ink-jet printer belongs to the technical field of printers and comprises an ink-jet printer body, a touch circuit module, a negative pressure fan, an electromagnetic valve, an air filter, a cover body, a control and detection circuit and a movable door mechanism, the movable door mechanism comprises an electric push rod and a shielding plate, the ink-jet printer body is installed in a cover body, and a paper outlet groove is formed in front of the cover body. The cover body movable cover is sucked with the upper end of the cover body; one ends of the two electromagnetic valves are respectively connected with the upper end of the movable cover and the side connecting pipe of the cover body, the negative pressure fan is arranged on the movable cover, and the other ends of the two electromagnetic valves are respectively connected with the negative pressure fan and the air filter; the electric push rod is installed on the front side of the cover body, the lower end of the electric push rod and the baffle plate are installed together, and the baffle plate is sleeved with the guide groove; the touch circuit module and the control and detection circuit are installed in the element box and are electrically connected. The nozzle blocking probability is reduced, the printing quality is guaranteed, and when the paper number is smaller than a set value, a user can be prompted to supplement.

Description

Technical Field

[0001] The present invention relates to the technical field of printer equipment, in particular to a multifunctional inkjet printer. Background Art

[0002] Inkjet printers are devices that spray ink onto paper in tiny droplets through nozzles to form text or pictures. The technologies used by inkjet printers are mainly thermal foaming and micro-piezoelectric. When a thermal foaming inkjet printer is working, it is controlled by a program and quickly heats the ink input through the ink cartridge through a micro heating element to form bubbles. The expansion of the bubbles pushes the ink out of the nozzle to form ink drops. When the bubbles disappear, the ink in the nozzle will be re-absorbed for the next spray. The above process is continuously circulated to print the required text or pictures on the paper. The advantages of thermal foaming inkjet printers are fast printing speed and low cost, but the ink is prone to chemical changes at high temperatures, which will affect the printing quality to a certain extent. When working, the micro-piezoelectric inkjet printer is under program control. It uses piezoelectric elements to control the ink input through the ink cartridge and ejected through the nozzle under the action of voltage. The piezoelectric elements shrink and extend under signal control, accurately controlling the shape and flight direction of the ink droplets, and then printing the required text or pictures on the paper. The advantages of the micro-piezoelectric inkjet printer are high printing quality and the ink will not undergo chemical changes due to heating, but the cost is relatively high and it is not suitable for high-speed printing.

[0003] Although existing inkjet printers have met practical needs to a certain extent, they still have some technical disadvantages due to structural limitations. First, the nozzles, ink cartridges, and printing paper are all exposed to the air. After a long period of use, there is a chance that dust will enter the nozzles or ink cartridges (for example, the cover of the ink cartridge is not properly closed), causing the nozzles to be clogged, thereby affecting the quality of printing or even causing the inability to print. The surface of the paper is affected by dust, which has an adverse effect on the quality of the image or text printed by the inkjet. Second, there is no function to detect the number of printed papers. When the user fails to check the number of papers due to negligence or other reasons, there may be a shortage of paper when printing is needed, which will have an adverse effect on normal printing work. Summary of the invention

[0004] In order to overcome the drawbacks of existing inkjet printers as described in the background technology due to structural limitations, the present invention provides a multifunctional inkjet printer based on an inkjet printer body, which can completely isolate the inkjet printer body from the outside world through a sealing cover, and can also extract dusty air in the sealing cover (such as dust on the surface of paper, etc.) in a negative pressure manner at regular intervals, thereby reducing the probability of nozzle clogging and ensuring the quality of inkjet printing. When the paper is less than the set value, the user can be prompted to replenish it at the first time, thereby preventing the printing work from being unable to proceed normally due to lack of paper.

[0005] The technical solution adopted by the present invention to solve its technical solution is:

[0006] A multifunctional inkjet printer comprises an inkjet printer body, a touch circuit module, a negative pressure fan, a solenoid valve, an air filter, a cover body, and also has a control circuit, a detection circuit, and a movable door mechanism; the movable door mechanism comprises an electric push rod and a baffle, the inkjet printer body is fixedly installed in the cover body, and a paper output slot is provided on the front side of the cover body; the upper end of the cover body is an open structure, the cover body is equipped with a movable cover, the upper end of the cover body is fixedly installed with a lower magnet ring, the lower end of the movable cover is fixedly installed with an upper magnet ring, and the movable cover is sucked onto the upper end of the cover body; the upper end of the movable cover and one side of the cover body are respectively fixedly installed with and connecting pipe, there are at least two solenoid valves, one end of the two solenoid valves and the outer ends of the two connecting pipes are respectively fixedly connected, and the negative pressure fan is fixedly installed on the movable cover At the outer upper end, the other ends of the two solenoid valves are fixedly connected to the exhaust pipes of the negative pressure fan and the air filter respectively; guide grooves are respectively provided on both side ends of the paper output slot, the upper part of the electric push rod is fixedly installed outside the front end of the cover body, the lower end of the electric push rod and the upper end of the baffle plate are fixedly installed together, and the two sides of the baffle plate are slidably sleeved in the two guide grooves respectively; the touch circuit module, the control circuit, and the detection circuit are installed in the component box, the component box is fixedly installed in the cover body, the detection circuit includes an alarm and a photoelectric switch, and the photoelectric switch is installed at the front end of the cover body; the power output end of the control circuit is electrically connected to the power input end of the two solenoid valves, the electric push rod, and the negative pressure fan; the signal output end of the touch circuit module is electrically connected to the signal input end of the control circuit.

[0007] Furthermore, the upper end of the lower magnet ring and the upper end of the upper magnet ring have opposite polarities, and the outer diameter and inner diameter of the lower magnet ring and the upper magnet ring are respectively consistent.

[0008] Furthermore, the length and width of the paper output slot are greater than the length and width of the paper output port of the inkjet printer body, and the lower ends of the paper output slot and the paper output port are located in the same plane.

[0009] Furthermore, the solenoid valve is a normally closed valve core solenoid valve.

[0010] Furthermore, the rear end of the shielding plate and the front outer end of the cover body are in sealed sliding contact.

[0011] Furthermore, the start button of the inkjet printer body and the split touch metal sheet of the touch circuit module are separately located at the front outer side end of the cover body.

[0012] Furthermore, the detection head of the photoelectric switch is located at the inner end of the cover body, and the detection head is aligned with the front end of the printing paper bin of the inkjet printer body, and the power output end of the photoelectric switch is electrically connected to the power input end of the alarm.

[0013] Furthermore, the control circuit includes an electrically connected time-controlled switch and a relay, wherein the positive power input terminal of the time-controlled switch is connected to the positive control power input terminal of the relay; the negative power input terminal of the time-controlled switch is connected to the negative power input terminal and the negative control power input terminal of the relay.

[0014] Furthermore, when the movable column of the electric push rod descends to the stop point, the shielding plate descends to the stop point to block the front end of the paper output slot, and when the movable column of the electric push rod ascends to the stop point, the shielding plate ascends to the stop point without blocking the front end of the paper output slot.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention is based on an inkjet printer body, and the inkjet printer body is completely isolated from the outside world by a sealing cover, thereby reducing the probability of external dust and the like entering the inkjet printer body. The control circuit can control the solenoid valve and the negative pressure fan to be energized and work for a period of time at regular intervals, and extract the dust-containing air in the sealing cover (such as dust on the surface of paper, etc.) by negative pressure, thereby further reducing the probability of nozzle clogging and ensuring the quality of inkjet printing. When the paper is less than the set value, the detection circuit can immediately prompt the user to replenish it after detecting it, thereby preventing the printing work from being unable to proceed normally due to lack of paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the inkjet printer body of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the ink cartridge and the vibration motor of the inkjet printer body of the present invention. DETAILED DESCRIPTION

[0018] Figure 1-Figure 2As shown, the multifunctional inkjet printer comprises an inkjet printer body 1, a power module A1, a touch circuit module A2, a negative pressure fan M1, a solenoid valve DC, an air filter 2, a hollow cover body 3, and also has a control circuit 4, a detection circuit 5, and a movable door mechanism; the movable door mechanism comprises an electric push rod M, a rectangular shielding plate 6, the lower part of the inkjet printer body 1 is fixedly mounted on the inner lower end of the cover body 3, and the front lower end of the cover body 3 has a rectangular paper output slot 31; the upper end of the cover body 3 is an open structure, and the rest of the parts are closed structures, the cover body 3 is equipped with a movable cover 33, a lower permanent magnet ring 34 is glued around the upper end of the cover body with glue, and an upper permanent magnet ring 35 is glued around the lower end of the movable cover 33 with glue, the movable cover 33 is attracted to the lower permanent magnet ring 34 at the upper end of the cover body through the upper permanent magnet ring 35, and then the movable cover 33 is sealed and mounted on the cover body 3; the middle part of the upper end of the movable cover 33 and the middle part of the left side of the cover body 3 are respectively fixedly mounted with the cover body 3, there are at least two solenoid valves, one end of the two solenoid valves DC and the outer ends of the two connecting pipes 32 are respectively connected by threads, the negative pressure fan M1 is fixedly installed on the outer upper end of the movable cover 33, and the other ends of the two solenoid valves DC are respectively connected to the exhaust pipes of the negative pressure fan M1 and the air filter 2 through pipes; there is a "["-shaped guide groove 311 on both sides of the paper outlet slot, the cylinder of the electric push rod M is vertically distributed and fixedly installed on the lower middle part of the front side end of the cover body 3, the lower end of the movable column of the electric push rod M and the middle part of the upper end of the baffle plate 6 are fixedly installed together, and the two sides of the baffle plate 6 are respectively slidably sealed in the two guide grooves 311; the power module A1, the touch circuit module A2, the control circuit 4, and the detection circuit 5 are installed on the circuit board in the component box 7, and the component box 7 is installed on the front inner side of the cover body 2. The detection circuit includes an alarm B and a photoelectric switch A3. There is an opening in the middle of the front upper end of the cover body 3, and the shell of the photoelectric switch A3 is sealed and installed in the opening.

[0019] Figure 1-Figure 2As shown, the upper end of the lower permanent magnet ring 34 and the upper end of the upper permanent magnet ring 35 have opposite polarities, and the outer diameters and inner diameters of the lower permanent magnet ring 34 and the upper magnet ring 35 are respectively consistent. The length and width of the paper outlet slot 31 are greater than the length and width of the paper outlet 101 of the inkjet printer body, and the lower ends of the paper outlet slot 31 and the paper outlet 101 are in the same plane. The solenoid valve DC is a normally closed valve core solenoid valve. The height of the guide groove 311 is less than the height of the baffle plate 32, and the rear side end of the baffle plate 32 is in sealed sliding contact with the front outer side end of the sealing cover body 3. The start button 8 of the inkjet printer body and the split touch metal sheet S of the touch circuit module are separately installed in the component box and located at the front outer side end of the cover body 3. The detection head of the photoelectric switch A3 is located at the inner side end of the cover body 3, and the detection head is aligned with the front side end of the printing paper bin 102 of the inkjet printer body. The power output ends 3 and 2 of the photoelectric switch A3 and the power input ends of the alarm B are connected via wires. The control circuit includes a time switch A4 and a relay K1 connected via circuit board wiring. The positive power input terminal 1 of the time switch A4 is connected to the positive control power input terminal of the relay K1; the negative power input terminal 2 of the time switch A4 is connected to the negative power input terminal and the negative control power input terminal of the relay K1. When the movable column of the electric push rod M moves downward to the stop point, the shielding plate 6 moves downward to the stop point to block the front end of the paper outlet slot 31. When the movable column of the electric push rod M moves upward to the stop point, the shielding plate 6 moves upward to the stop point without blocking the front end of the paper outlet slot 31.

[0020] Figure 1-Figure 2 As shown, the inkjet printer body 1, the power input terminals 1 and 2 of the power module A1 and the two poles of the AC 220V power supply are connected via wires, the power output terminals 3 and 4 of the power module A1 and the power input terminals 1 and 2 of the touch circuit module A2, the positive control power input terminal and the negative control power input terminal of the control circuit relay K1, and the power input terminals 1 and 2 of the photoelectric switch A3 of the detection circuit are connected via wires. The two normally open contact terminals and the two normally closed contact terminals of the relay K1 are connected to the positive and negative and negative and positive power input terminals of the electric push rod M via wires, respectively, and the 3 and 4 pins of the time switch A4 are connected to the two solenoid valves DC and the two ends of the power input of the negative pressure fan M1 via wires. The signal power output terminal of the touch circuit module A2 and the positive power input terminal of the relay K1 are connected via wires.

[0021] Figure 1-Figure 2As shown, the present invention is based on an inkjet printer body 1. When the inkjet printer body 1 is working and the start button 8 is pressed, the micro-piezoelectric inkjet printer body 1 is working under program control, using piezoelectric elements to control the ink input through the ink box under the action of voltage and spray through the nozzle. The piezoelectric elements shrink and extend under signal control to accurately control the shape and flight direction of the ink droplets, and then print the required text or pictures on the paper (the inkjet printer body 1 is an existing mature technology, and this application will not repeat its working principle and use process). The inkjet printer body 1 is completely isolated from the outside world by the sealing cover 3, which reduces the probability of external dust entering the inkjet printer body 1, reduces the probability of nozzle clogging, and ensures the quality of inkjet printing. Because the movable cover 33 and the upper part of the cover 3 are attracted by magnets, it is convenient for users to add paper or ink to the inkjet printer body. After the 220V AC power supply enters the power input end of the power module A1, the 3 and 4 pins of the power module A1 output a stable DC 12V power supply and enter the power input end of the control circuit and the detection circuit, and the above circuits are powered on. After the time switch A4 of the present invention is powered on, its pins 3 and 4 will output power at intervals (for example, output power for 20 seconds every 2 days) to the two electromagnetic valves DC (valve core is open) and the power input end of the negative pressure fan M1. After the negative pressure fan M1 is powered on, negative pressure will be generated to extract the air in the cover body 3 (the external air enters the cover body 3 after being filtered by the air filter 2 to ensure the air circulation in the cover body 3). In this way, since the air containing dust in the sealed cover (such as dust on the surface of paper, etc.) is extracted by negative pressure, the probability of nozzle blockage is further reduced, and the quality of inkjet printing paper is guaranteed. When the amount of paper in the printing paper bin 102 of the inkjet printer body is large and its thickness is relatively thick, the photoelectric switch A3 does not output a high level at pin 3 due to an object blocking the detection head, and the alarm B does not receive power and sound, indicating that the amount of paper in the printing paper bin 102 is still large and does not need to be added; when the amount of paper in the printing paper bin 102 of the inkjet printer body is small and its thickness is relatively thin, the photoelectric switch A3 does not output a high level at pin 3 due to no object blocking the detection head, and the alarm B receives power and sound, indicating that the amount of paper in the printing paper bin 102 is small and needs to be added.

[0022] Figure 1-Figure 2As shown, each time the user uses printing paper and presses the start button 8 of the inkjet printer body 1 with a finger, the finger simultaneously touches the split touch metal sheet S of the touch circuit module, so that the 3rd pin of the touch circuit module A2 will output a high level and enter the positive power input terminal of the relay K1, so that the relay K1 is energized to attract its control power input terminal and the normally open contact terminal to close, so that the positive and negative power input terminals of the electric push rod M will be energized, and its active column drives the baffle plate 6 to move up along the guide groove 311 to the stop point. The baffle plate 6 moves up to the stop point without blocking the front end of the paper output slot 31, so as to prepare for the normal paper output of the inkjet printer body 1 through the paper output bin. After printing is completed, the user touches the split touch metal sheet S of the touch circuit module with his finger again, so that the 3rd pin of the touch circuit module A2 will stop outputting a high level and enter the positive power input terminal of the relay K1. Therefore, the relay K1 loses power and no longer attracts its control power input terminal and the normally closed contact terminal to close. The negative and positive power input terminals of the electric push rod M will be energized, and its active column will drive the baffle plate 6 to move down along the guide groove 311 to the stop point. The baffle plate 6 moves down to the stop point to block the front end of the paper output slot 31, thereby preventing dust from entering the inkjet printer body through the paper output bin and the paper output slot when the inkjet printer body is not in use, causing blockage of the nozzle and the like.

[0023] Figure 1-Figure 2As shown, through the action of all the above-mentioned mechanisms, the sealing cover completely isolates the inkjet printer body from the outside world, reducing the chance of external dust entering the inkjet printer body, and extracting the dust-containing air in the sealing cover by negative pressure, further reducing the chance of nozzle clogging, thereby ensuring the quality of inkjet printing. When the number of sheets of paper is less than the set value, the detection circuit can immediately prompt the user to replenish it after detecting it, thereby preventing the printing work from being unable to proceed normally due to lack of paper. The power module A1 is a finished product of an AC 220V to DC 12V power module; the relay K1 model is DC12V; the solenoid valve DC power is 2W; the alarm B is a finished product of an active continuous sound buzzer alarm model FM12V; the time control switch A2 is a finished product of a time controller module model KG316T, which has two power input terminals, two power output terminals, and seven setting buttons. By adjusting the seven setting buttons respectively, the time for the two power output terminals to output power can be set; the touch circuit module A2 is a finished product of a touch circuit module model CMTG-2.5A, which has two power input terminals and one power output terminal. The power output terminal outputs a power supply when the touch is first touched and after the touch is completed. Power supply, touch it with your finger again, and the power output end stops outputting power after the touch piece; the photoelectric switch A3 is a finished reflective photoelectric switch of model E3F-DS10C4, which has two power input ends and one power output end. When there is an object blocking the front end of the detection head, the power output end does not output power, otherwise it outputs power. The photoelectric switch has a specific adjustment knob, which can be adjusted to the left or right, and the detection distance becomes closer or farther respectively. In this embodiment, it is adjusted to about 7 cm; the negative pressure fan M1 has a power of 50W; the electric push rod M1 is a finished reciprocating electric telescopic rod, and a limit switch is provided inside the cylinder. When the movable rod moves up and down to the stop point, the motor of the electric push rod will lose power, which will not affect the reverse input power.

[0024] The above content illustrates the basic principle and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

[0025] In addition, it should be understood that although the present specification is described according to the implementation mode, the implementation mode does not only include an independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in the embodiments can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multifunctional inkjet printer, comprising an inkjet printer body, a touch circuit module, a negative pressure fan, a solenoid valve, an air filter, and a cover, characterized in that: It also has a control circuit, a detection circuit, and a movable door mechanism; the movable door mechanism includes an electric push rod and a baffle, the inkjet printer body is fixedly installed in the cover body, and the front side of the cover body is provided with a paper output slot; the upper end of the cover body is an open structure, the cover body is equipped with a movable cover, the upper end of the cover body is fixedly installed with a lower magnet ring, the lower end of the movable cover is fixedly installed with an upper magnet ring, and the movable cover is sucked onto the upper end of the cover body; the upper end of the movable cover and one side of the cover body are respectively fixedly installed with and connecting pipe, there are at least two solenoid valves, one end of the two solenoid valves is respectively fixedly connected to the outer ends of the two connecting pipes, the negative pressure fan is fixedly installed on the outer upper end of the movable cover, and the other ends of the two solenoid valves are connected to the negative pressure fan and the air filter The exhaust pipes are fixedly connected respectively; guide grooves are respectively provided at both side ends of the paper output slot, the upper part of the electric push rod is fixedly mounted outside the front end of the cover body, the lower end of the electric push rod and the upper end of the shielding plate are fixedly mounted together, and the two sides of the shielding plate are slidably sleeved in the two guide grooves respectively; the touch circuit module, the control circuit, and the detection circuit are installed in the component box, the component box is fixedly mounted in the cover body, the detection circuit includes an alarm and a photoelectric switch, and the photoelectric switch is installed at the front end of the cover body; the power output end of the control circuit is electrically connected to the power input end of the two solenoid valves, the electric push rod, and the negative pressure fan; the signal output end of the touch circuit module is electrically connected to the signal input end of the control circuit.

2. A multifunctional inkjet printer according to claim 1, characterized in that: The upper end of the lower magnet ring and the upper end of the upper magnet ring have opposite polarities, and the outer diameter and inner diameter of the lower magnet ring and the upper magnet ring are respectively consistent.

3. A multifunctional inkjet printer according to claim 1, characterized in that: The length and width of the paper output slot are greater than the length and width of the paper output port of the inkjet printer body, and the lower ends of the paper output slot and the paper output port are located in the same plane.

4. A multifunctional inkjet printer according to claim 1, characterized in that: The solenoid valve is a normally closed spool solenoid valve.

5. A multifunctional inkjet printer according to claim 1, characterized in that: The rear side end of the shielding plate and the front outer side end of the cover body are in sealed sliding contact.

6. A multifunctional inkjet printer according to claim 1, characterized in that: The start button of the inkjet printer body and the split touch metal sheet of the touch circuit module are separately located at the front outer side end of the cover body.

7. A multifunctional inkjet printer according to claim 1, characterized in that: The detection head of the photoelectric switch is located at the inner side end of the cover body and is aligned with the front side end of the printing paper bin of the inkjet printer body. The power output end of the photoelectric switch is electrically connected to the power input end of the alarm.

8. The multifunctional inkjet printer according to claim 1, characterized in that: The control circuit includes an electrically connected time-controlled switch and a relay. The positive power input terminal of the time-controlled switch is connected to the positive control power input terminal of the relay; the negative power input terminal of the time-controlled switch is connected to the negative power input terminal and the negative control power input terminal of the relay.

9. The multifunctional inkjet printer according to claim 1, characterized in that: When the movable column of the electric push rod moves downward to the stop point, the shielding plate moves downward to the stop point to block the front end of the paper output slot; when the movable column of the electric push rod moves upward to the stop point, the shielding plate moves upward to the stop point without blocking the front end of the paper output slot.

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