Combined type heat dissipation waterproof and dustproof ink-jet printer

Abstract

The invention discloses a combined type heat dissipation waterproof and dustproof ink-jet printer, and relates to the technical field of ink-jet printers, the combined type heat dissipation waterproof and dustproof ink-jet printer comprises an ink-jet printer main body and a controller, the ink-jet printer main body comprises a box body and a rack, a raw material tank and a cooling assembly are arranged in the box body, and the cooling assembly can cool the box body; a code spraying head and two sets of positioning assemblies are arranged on the rack, the two sets of positioning assemblies are matched with the code spraying head, the two sets of positioning assemblies are located on the same horizontal plane, the code spraying head is matched with a raw material tank, and the positioning assemblies can position code spraying points. The positioning assembly can accurately position the position parameters between the materials and the code spraying head, after the positions are determined, the raw material tank can supply ink into the code spraying head so that the code spraying head can accurately spray codes on all the materials, and meanwhile due to the fact that the liquid level detection assembly is arranged in the raw material tank of the code spraying device, the code spraying efficiency is improved. And whether the raw materials in the raw material tank are sufficient can be monitored in real time.

Description

Technical Field

[0001] The present invention relates to the technical field of inkjet printers, and specifically to a combined heat dissipation, waterproof and dustproof inkjet printer. Background Art

[0002] An inkjet printer is a device that uses software control to perform non-contact marking on products, and it is used to print production dates and production information on the surface of products. When initially installing an existing inkjet printer, debugging needs to be carried out according to the interval between the material and the inkjet head. However, since the heights of different materials are different, this will make the installation and debugging of the equipment rather cumbersome, thereby affecting work efficiency. Moreover, during the debugging process of a general inkjet printer, manual debugging is always required, which will also increase the workload of the staff. Summary of the Invention

[0003] The purpose of the present invention is to provide a combined heat dissipation, waterproof and dustproof inkjet printer to solve the problems raised in the prior art.

[0004] To achieve the above purpose, the present invention provides the following technical solution: A combined heat dissipation, waterproof and dustproof inkjet printer includes an inkjet device main body and a controller. The inkjet device main body includes a box body and a frame. Inside the box body, there is a raw material tank and a cooling component, and the cooling component can cool the box body;

[0005] On the frame, there is an inkjet head and two positioning components. The two positioning components cooperate with the inkjet head. The two positioning components are on the same horizontal plane. The inkjet head cooperates with the raw material tank, and the positioning components can position the inkjet points.

[0006] Further, the raw material tank includes a reagent tank and an ink tank. The reagent pipe cooperates with the ink tank. Feed tanks are respectively installed at the output ends of the reagent tank and the ink tank. The other ends of the two feed pipes are respectively connected to the inkjet head. Liquid level detection components are respectively arranged inside the reagent tank and the ink tank. The two liquid level detection components are respectively connected to the controller, and the liquid level detection components can respectively detect the liquid content inside the reagent tank and the ink tank.

[0007] Further, the liquid level detection component includes a limit pipe. There are gaps between the limit pipe and the bottoms of the reagent tank and the ink tank respectively. A sleeve is slidably installed outside the limit pipe. A magnetic sheet is arranged inside the sleeve. A glass tube is arranged inside the limit pipe. Two iron-nickel magnetic reed switches are arranged inside the glass tube. Nitrogen or an equivalent inert gas is injected into the glass tube. The two iron-nickel magnetic reed switches do not contact in the initial state.

[0008] Further, when there is an external magnetic field: the iron-nickel magnetic reed switches plated with rhodium and ruthenium come into contact and conduct;

[0009] When the external magnetic field disappears: The two sets of iron-nickel magnetic reed switches in the glass tube will return to their original positions.

[0010] Furthermore, a storage space is provided inside the box body. A box door is provided outside the storage space. A groove is provided above the storage space. An air inlet hole and an induction plate are provided inside the groove. The induction plate is connected to the controller. A sheet-shaped filter element is provided inside the air inlet hole. A sealing strip is provided on the contact surface between the storage space and the box door. An exhaust hole is provided at the bottom of the box body, and the exhaust hole is inclined.

[0011] Furthermore, the cooling component is installed above the storage space. The cooling component includes a fan and two sets of ceramic plates. A semiconductor group and two sets of metal plates are installed between the two sets of ceramic plates. The semiconductor group includes two different semiconductors. The semiconductor group is installed between the two sets of metal plates. The two sets of semiconductors are respectively installed between the metal plates in an alternating manner, and the two sets of semiconductors are connected to each other.

[0012] Furthermore, the frame includes a fixed rod. A limiting component is installed above the fixed rod. The positioning component is installed on the limiting component. The limiting component includes a limiting ring and an adjustment motor. A sliding groove is provided outside the limiting ring. A support rod is installed inside the sliding groove. The other end of the support rod is installed with the positioning component. The adjustment motor is installed inside the fixed rod. A connecting rod is installed at the output end of the adjustment motor. The other end of the connecting rod is installed with the spray head. The connecting rod is respectively connected to the two support rods with induction wires. Conductive blocks and tension induction plates are respectively installed at both ends of the induction wires. The conductive blocks and the tension induction plates are respectively connected to the controller.

[0013] Furthermore, the positioning component includes a photoelectric sensor and a distance sensor. The two sets of positioning components cooperate with each other, and the spray head is located between the two sets of positioning components.

[0014] Furthermore, the spray head includes an installation sleeve. A support plate is installed inside the installation sleeve. Two sets of feed pipes are respectively installed at one end of the support plate. The two sets of feed pipes are respectively connected to a reagent tank and an ink tank. A nozzle is also installed on the support plate. A charging electrode is installed at the bottom of the nozzle. A phase sensor is installed at the bottom of the charging electrode. Two sets of deflection plates are installed at the bottom of the phase sensor. A droplet velocity sensor and a recovery pipe are installed at the bottom of the deflection plates.

[0015] Furthermore, the controller is installed inside the box body. A display screen and a control panel are provided on the box body. The display screen and the control panel are respectively connected to the controller.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. When the device is in use, the positioning component can accurately locate the position parameters between the material and the ink jet head. After the position is determined, the raw material tank will supply ink to the ink jet head so that the ink jet head can accurately code each material. At the same time, because the raw material tank of the device is provided with a liquid level detection component, it can monitor in real time whether the raw materials in the raw material tank are sufficient;

[0018] 2. When the liquid level detection component is in use, it can detect the liquid in the reagent tank and the ink tank to check whether the internal liquid raw materials are sufficient. Specifically, when the liquid in the reagent tank or the ink tank is sufficient, the liquid will push the sleeve to rise, so that the sleeve reaches a specific position. Because there is a magnetic sheet inside the sleeve, the magnetic sheet will also be driven to move upward together. When the magnetic sheet moves upward, it will apply a magnetic force to the two iron-nickel magnetic reed switches, so that the two iron-nickel magnetic reed switches can contact each other. After the two iron-nickel magnetic reed switches contact each other, a signal will be transmitted to the controller, so that the staff can know that the raw materials in the current reagent tank and ink tank are sufficient;

[0019] 3. The limit component can limit the cooperation between the ink jet head and the positioning component. When the limit component is in use, the adjustment motor can drive the connecting rod to rotate, and then can drive the ink jet head to rotate at the same time. Through the induction wire and the support rod, the connecting rod can always be in the middle of the two support rods, so that the two positioning components can quickly pair the cooperation between the material and the ink jet head. When the angles between the connecting rod and the two support rods are not equal, the time for the induction wire to transmit the electrical signal and the tension of the tension induction plate are different. At this time, the adjustment motor will drive the connecting rod to rotate, so that the ink jet head can be between the two positioning components, shortening the equipment debugging time. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is an isometric structural schematic diagram of the whole of the present invention;

[0021] Figure 2 is an unfolded structural schematic diagram of the box body of the present invention;

[0022] Figure 3 is a sectional structural schematic diagram of the raw material tank in the box body of the present invention;

[0023] Figure 4 is an internal structural schematic diagram of the box body of the present invention;

[0024] Figure 5 is a sectional structural schematic diagram of the ink jet head of the present invention;

[0025] Figure 6 is an internal structural schematic diagram of the liquid level detection component of the present invention;

[0026] Figure 7 Structural schematic diagram of the upper limit component and the positioning component on the frame of the present invention;

[0027] Figure 8 For the present invention Figure 3 Enlarged schematic diagram at "A" in;

[0028] Figure 9 For the present invention Figure 4 Enlarged schematic diagram at "B" in.

[0029] In the figure: 1. Main body of the inkjet printing device; 11. Box body; 111. Box door; 112. Air inlet hole; 113. Induction plate; 114. Exhaust hole; 2. Frame; 21. Fixed rod; 3. Raw material tank; 31. Reagent tank; 32. Ink tank; 4. Cooling component; 41. Fan; 42. Ceramic plate; 43. Metal plate; 44. Semiconductor group; 5. Inkjet head; 51. Installation sleeve; 52. Support plate; 53. Feed pipe; 54. Nozzle; 55. Charging electrode; 56. Phase sensor; 57. Deflection plate; 6. Positioning component; 61. Photoelectric sensor; 62. Distance sensor; 7. Liquid level detection component; 71. Limit tube; 72. Sleeve; 721. Magnetic sheet; 73. Glass tube; 74. Iron-nickel magnetic reed switch; 8. Upper limit component; 81. Limit ring; 82. Adjusting motor; 83. Support rod; 84. Inductive wire; 9. Controller; 91. Control panel. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Embodiment: As Figures 1-9 shown, the present invention provides a technical solution for a combined heat dissipation, waterproof and dustproof inkjet printer, including an inkjet printing device main body 1 and a controller 9, characterized in that: the inkjet printing device main body 1 includes a box body 11 and a frame 2, and a raw material tank 3 and a cooling component 4 are arranged inside the box body 11, and the cooling component 4 can cool the box body 11;

[0032] An inkjet head 5 and two groups of positioning components 6 are arranged on the frame 2, the two groups of positioning components 6 cooperate with the inkjet head 5, the two groups of positioning components 6 are on the same horizontal plane, the inkjet head 5 cooperates with the raw material tank 3, and the positioning component 6 can position the inkjet point;

[0033] When the device is in use, first, the box body 11 and the frame 2 need to be installed in a suitable position. Then, sufficient raw materials are added to the raw material tank 3 inside the box body 11. After that, the frame 2 is adjusted so that the positioning component 6 can accurately locate the position parameters between the material and the spray head 5. When the position is determined, the raw material tank 3 supplies ink to the spray head 5 so that the spray head 5 can accurately code each material. When the coding device main body 1 is working, because there are many internal electronic components, certain heat will be generated inside the box body 11. At this time, the cooling component 4 of the device will cool the internal electronic components of the box body 11. During the continuous coding process, the raw materials in the raw material tank 3 will gradually decrease. When the device is in use, the liquid level detection component 7 can detect the liquid raw materials in the raw material tank 3 to determine whether the current raw materials are sufficient. When the device is in use, compared with the traditional coding machine, it can achieve autonomous calibration and positioning, enabling the spray head 5 to adaptively adjust according to the current state position.

[0034] As Figures 3-4 and Figure 8 shown, in this embodiment, specifically, the raw material tank 3 includes a reagent tank 31 and an ink tank 32. The reagent tube cooperates with the ink tank 32. Feeding tanks are respectively installed at the output ends of the reagent tank 31 and the ink tank 32. The other ends of the two feeding tubes are respectively connected to the spray head 5. Liquid level detection components 7 are respectively arranged inside the reagent tank 31 and the ink tank 32. The two liquid level detection components 7 are respectively connected to the controller 9. The liquid level detection components 7 can respectively detect the liquid content inside the reagent tank 31 and the ink tank 32.

[0035] The raw material tank 3 of the device mainly includes a reagent tank 31 and an ink tank 32, which can supply sufficient raw materials to the spray head 5. The reagent tank 31 is provided with raw materials for neutralizing ink, and the ink tank 32 stores ink. Liquid level detection components 7 are respectively arranged inside the reagent tank 31 and the ink tank 32. Through the liquid level detection components 7, the liquids in the reagent tank 31 and the ink tank 32 can be detected to determine whether the internal liquid raw materials are sufficient.

[0036] As Figure 4 and Figure 6 shown, in this embodiment, specifically, the liquid level detection component 7 includes a limit tube 71. There are gaps between the limit tube 71 and the bottoms of the reagent tank 31 and the ink tank 32 respectively. A sleeve 72 is slidably installed outside the limit tube 71. A magnetic sheet 721 is arranged inside the sleeve 72. A glass tube 73 is arranged inside the limit tube 71. Two iron-nickel magnetic reed switches 74 are arranged inside the glass tube 73. Nitrogen or an equal inert gas is injected into the glass tube 73. The two iron-nickel magnetic reed switches 74 do not contact in the initial state.

[0037] When the liquid level detection component 7 is in use, it can detect the liquids in the reagent tank 31 and the ink tank 32 to check whether the internal liquid raw materials are sufficient. Specifically, when the liquid in the reagent tank 31 or the ink tank 32 is sufficient, the liquid will push the sleeve 72 upward, causing the sleeve 72 to reach a specific position. Since there is a magnetic sheet 721 inside the sleeve 72, the magnetic sheet 721 will also move upward together. When the magnetic sheet 721 moves upward, it will apply a magnetic force to the two iron-nickel magnetic reed switches 74, causing the two iron-nickel magnetic reed switches 74 to come into contact with each other. When the two iron-nickel magnetic reed switches 74 are in contact, they will transmit a signal to the controller 9, so that the staff can know that the raw materials in the current reagent tank 31 and ink tank 32 are sufficient and do not need to add raw materials. When the level of the raw materials in the reagent tank 31 and the ink tank 32 drops to the bottom of the sleeve 72 and cannot support the sleeve 72, the sleeve 72 will drop with the water level at this time, and the magnetic sheet 721 will not be able to form a magnetic field around the glass tube 73, so the two iron-nickel magnetic reed switches 74 will no longer be in contact. At this time, the controller 9 will know that the current signal source is disconnected, so as to be able to notify the staff to add raw materials, so that the device can continuously perform inkjet coding on the materials.

[0038] As Figure 6 shown, in this embodiment, specifically, when there is an external magnetic field: the iron-nickel magnetic reed switch 74 plated with rhodium and ruthenium comes into contact and conducts;

[0039] When the external magnetic field disappears: the two iron-nickel magnetic reed switches 74 in the glass tube 73 will return to their original positions;

[0040] After the sleeve 72 is lifted by the liquid, the magnetic sheet 721 will be outside the glass tube 73, and the magnetic field generated by the magnetic sheet 721 will act on the glass tube 73, so that the iron-nickel magnetic reed switches 74 plated with rhodium and ruthenium come into contact, and then transmit a signal to the controller 9;

[0041] When the sleeve 72 drops with the liquid, the magnetic sheet 721 will also drop together. When the magnetic sheet 721 drops to the bottom of the glass tube 73, the magnetic sheet 721 will no longer affect the iron-nickel magnetic reed switches 74, so the two iron-nickel magnetic reed switches 74 will disconnect. When the two iron-nickel magnetic reed switches 74 are disconnected, they will no longer provide a signal to the controller 9, so that the staff can know that the raw materials in the current raw material tank 3 are insufficient.

[0042] As Figures 2-3As shown, in this embodiment, specifically, a storage space is provided inside the box body 11, a box door 111 is provided outside the storage space, a groove is provided above the storage space, an air inlet 112 and a sensor plate 113 are provided inside the groove, the sensor plate 113 is connected to the controller 9, a sheet-type filter element is provided inside the air inlet 112, a sealing strip is provided on the contact surface between the storage space and the box door 111, and an exhaust hole 114 is provided at the bottom of the box body 11, and the exhaust hole 114 is inclined;

[0043] The storage space in the box 11 is mainly used for installing and placing various accessories, and the air inlet 112 on the storage space can cooperate with the cooling component 4, and the sheet filter element in the air inlet 112 can filter the air entering the box 11, and the sensor plate 113 is used to cooperate with the magnetic card to unlock the device, and the box door 111 can close the storage space, and the exhaust hole 114 at the bottom of the box 11 can discharge the hot air in the box 11, and because of the shape of the exhaust hole 114, the discharged gas can reduce the contact with the edge of the exhaust hole 114, thereby reducing the eddy current generated by the edge of the exhaust hole 114.

[0044] like Figure 4 and Figure 9 As shown, in this embodiment, specifically, a cooling component 4 is installed above the storage space, and the cooling component 4 includes a fan 41 and two groups of ceramic plates 42, a semiconductor group 44 and two groups of metal plates 43 are installed between the two groups of ceramic plates 42, the semiconductor group 44 includes two different semiconductors, the semiconductor group 44 is installed between the two groups of metal plates 43, the two groups of semiconductors are respectively staggeredly installed between the metal plates 43, and the two groups of semiconductors are connected to each other;

[0045] When in use, the cooling component 4 of the device can cool the accessories in the box 11. During specific use, a group of ceramic plates 42 will contact the electronic components, and then this group of ceramic plates 42 can absorb the heat of the electronic components, while the other group of ceramic plates 42 will contact the fan 41, and then the heat can be conducted out through the fan 41 and discharged through the exhaust holes 114 at the bottom of the box 11.

[0046] like Figure 1 and Figure 7As shown, in this embodiment, specifically, the frame 2 includes a fixed rod 21. Above the fixed rod 21, a limiting component 8 is installed. On the limiting component 8, the positioning component 6 is installed. The limiting component 8 includes a limiting ring 81 and an adjusting motor 82. A chute is provided outside the limiting ring 81. Inside the chute, a support rod 83 is installed. The other end of the support rod 83 is installed with the positioning component 6. The adjusting motor 82 is installed inside the fixed rod 21. The output end of the adjusting motor 82 is installed with a connecting rod. The other end of the connecting rod is installed with the inkjet head 5. The connecting rod is respectively connected to two groups of support rods 83 by induction wires 84. Both ends of the induction wire 84 are respectively installed with a conductive block and a tension sensing plate. The conductive block and the tension sensing plate are respectively connected to the controller 9;

[0047] When the frame 2 of the device is in use, it is mainly used to install the inkjet head 5 and the positioning component 6. Specifically, when in use, the limiting component 8 can limit the cooperation between the inkjet head 5 and the positioning component 6. When the limiting component 8 is in use, the adjusting motor 82 can drive the connecting rod to rotate, and then can drive the inkjet head 5 to rotate at the same time. Through the cooperation of the induction wire 84 and the support rod 83, the connecting rod can always be in the middle of the two groups of support rods 83, so that the two groups of positioning components 6 can quickly pair the cooperation between the material and the inkjet head 5. When the angles between the connecting rod and the two groups of support rods 83 are not equal, the time between the induction wires 84 transmitting electrical signals and the tension of the tension sensing plate are different. Then at this time, the adjusting motor 82 will drive the connecting rod to rotate, and then the inkjet head 5 can be located between the two groups of positioning components 6, which speeds up the equipment debugging time.

[0048] As Figure 1 and Figure 6 shown, in this embodiment, specifically, the positioning component 6 includes a photoelectric sensor 61 and a distance sensor 62. The two groups of positioning components 6 cooperate with each other, and the inkjet head 5 is located in the middle of the two groups of positioning components 6;

[0049] When the positioning component 6 of the device is in use, it can locate the position of the material to cooperate with the inkjet head 5. Specifically, when in use, the photoelectric sensor 61 and the distance sensor 62 respectively detect the material. The results detected by the two groups of positioning components 6 can quickly debug the equipment, and then assist the inkjet head 5 to perform inkjet coding on the material.

[0050] As Figure 5As shown, in this embodiment, specifically, the inkjet head 5 includes an installation sleeve 51. Inside the installation sleeve 51, a support plate 52 is installed. At one end of the support plate 52, two feed pipes 53 are respectively installed. The two feed pipes 53 are respectively connected to the reagent tank 31 and the ink tank 32. A nozzle 54 is also installed on the support plate 52. A charging electrode 55 is installed at the bottom of the nozzle 54. A phase sensor 56 is installed at the bottom of the charging electrode 55. Two deflection plates 57 are installed at the bottom of the phase sensor 56. A droplet velocity sensor and a recovery pipe are installed at the bottom of the deflection plate 57.

[0051] When the inkjet head 5 of this device is in use, it can perform inkjet coding on materials. Specifically, when in use, the nozzle 54 can discharge the diluted ink. The ink will be divided into multiple droplets after passing through the charging electrode 55. Combined with the phase sensor 56, each droplet can drip evenly. When the droplets pass through the deflection plates 57, the deflection plates 57 can change the direction of the droplets automatically according to the pattern to be inkjet-coded, so as to perform inkjet coding. The recovery pipe at the bottom can recover the excess droplets.

[0052] As Figures 1-4 shown, in this embodiment, specifically, a controller 9 is installed inside the box body 11. A display screen and a control panel 91 are arranged on the box body 11. The display screen and the control panel 91 are respectively connected to the controller 9.

[0053] When this device is in use, the inkjet coding device main body 1 and the frame 2 can be controlled through the controller 9. Because the display screen and the control panel 91 on the box body 11 are respectively connected to the controller 9, the staff can control the inkjet coding device main body 1 and the frame 2 through the control panel 91.

[0054] Working principle: When this device is in use, first, the box body 11 and the frame 2 need to be installed in a suitable position. Then, sufficient raw materials are added to the raw material tank 3 inside the box body 11. Then, the frame 2 is adjusted so that the positioning component 6 can accurately locate the position parameters between the material and the inkjet head 5. When the position is determined, the raw material tank 3 will supply ink to the inkjet head 5 so that the inkjet head 5 can accurately perform inkjet coding on each material. When the inkjet coding device main body 1 is working, because there are many internal electronic components, certain heat will be generated inside the box body 11. At this time, the cooling component 4 of this device will cool the internal electronic components of the box body 11. During the continuous inkjet coding process, the raw materials in the raw material tank 3 will gradually decrease. When this device is in use, the liquid level detection component 7 can be used to detect the liquid raw materials in the raw material tank 3, so as to judge whether the current raw materials are sufficient. When this device is in use, compared with the traditional inkjet printer, it can realize automatic calibration and positioning, so that the inkjet head 5 can adaptively adjust according to the current state position by itself.

[0055] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or essential characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A combined heat dissipation, waterproof and dustproof inkjet printer, comprising a main body of the inkjet device (1) and a controller (9), characterized in that: The main body (1) of the inkjet coding device includes a box body (11) and a frame (2). Inside the box body (11), there is a raw material tank (3) and a cooling component (4), and the cooling component (4) can cool the box body (11). On the frame (2), there is an inkjet head (5) and two groups of positioning components (6). The two groups of positioning components (6) cooperate with the inkjet head (5). The two groups of positioning components (6) are on the same horizontal plane. The inkjet head (5) cooperates with the raw material tank (3), and the positioning component (6) can position the inkjet coding point.

2. The combined heat dissipation, waterproof and dustproof inkjet printer according to claim 1, wherein: The raw material tank (3) includes a reagent tank (31) and an ink tank (32). The reagent pipe cooperates with the ink tank (32). Feed tanks are respectively installed at the output ends of the reagent tank (31) and the ink tank (32). The other ends of the two feed pipes are respectively connected to the inkjet head (5). Liquid level detection components (7) are respectively arranged inside the reagent tank (31) and the ink tank (32). The two groups of liquid level detection components (7) are respectively connected to a controller (9), and the liquid level detection components (7) can respectively detect the liquid content inside the reagent tank (31) and the ink tank (32).

3. The combined heat dissipation, waterproof and dustproof inkjet printer according to claim 2, characterized in that: The liquid level detection component (7) includes a limit pipe (71). There are gaps between the limit pipe (71) and the bottoms of the reagent tank (31) and the ink tank (32) respectively. A sleeve (72) is slidably installed outside the limit pipe (71). A magnetic sheet (721) is arranged inside the sleeve (72). A glass tube (73) is arranged inside the limit pipe (71). Two groups of iron-nickel magnetic reed switches (74) are arranged inside the glass tube (73). Nitrogen or an equal inert gas is injected into the glass tube (73). The two groups of iron-nickel magnetic reed switches (74) do not contact in the initial state.

4. The modular heat dissipation, waterproof and dustproof inkjet printer according to claim 3, wherein: When there is an external magnetic field: the iron-nickel magnetic reed switches (74) plated with rhodium and ruthenium contact and then conduct. When the external magnetic field disappears: the two groups of iron-nickel magnetic reed switches (74) in the glass tube (73) will return to their original positions.

5. The combined heat dissipation, waterproof and dustproof inkjet printer according to claim 4, wherein: There is a storage space inside the box body (11). A box door (111) is arranged outside the storage space. There is a groove above the storage space. An air inlet hole (112) and an induction plate (113) are arranged inside the groove. The induction plate (113) is connected to the controller (9). A sheet-shaped filter element is arranged inside the air inlet hole (112). A sealing strip is arranged on the contact surface between the storage space and the box door (111). An exhaust hole (114) is arranged at the bottom of the box body (11), and the exhaust hole (114) is inclined.

6. The combined heat dissipation, waterproof and dustproof inkjet printer according to claim 5, characterized in that: The cooling component (4) is installed above the storage space. The cooling component (4) includes a fan (41) and two groups of ceramic plates (42). A semiconductor group (44) and two groups of metal plates (43) are installed between the two groups of ceramic plates (42). The semiconductor group (44) includes two different semiconductors. The semiconductor group (44) is installed between the two groups of metal plates (43). The two semiconductors are respectively installed alternately between the metal plates (43), and the two semiconductors are connected to each other.

7. The modular heat dissipation, waterproof and dustproof inkjet printer according to claim 6, characterized in that: The frame (2) includes a fixed rod (21). Above the fixed rod (21), a limit component (8) is installed. On the limit component (8), the positioning component (6) is installed. The limit component (8) includes a limit ring (81) and an adjustment motor (82). A chute is arranged outside the limit ring (81). Inside the chute, a support rod (83) is installed. The other end of the support rod (83) is installed with the positioning component (6). The adjustment motor (82) is installed inside the fixed rod (21). The output end of the adjustment motor (82) is installed with a connecting rod. The other end of the connecting rod is installed with the nozzle head (5). The connecting rod is respectively connected to two groups of support rods (83) with induction wires (84). Two ends of the induction wire (84) are respectively installed with a conductive block and a tension induction plate. The conductive block and the tension induction plate are respectively connected to the controller (9).

8. The combined heat dissipation, waterproof and dustproof inkjet printer according to claim 7, wherein: The positioning component (6) includes a photoelectric sensor (61) and a distance sensor (62). The two groups of positioning components (6) cooperate with each other. The nozzle head (5) is located between the two groups of positioning components (6).

9. The combined heat dissipation, waterproof and dustproof inkjet printer according to claim 8, wherein: The nozzle head (5) includes an installation sleeve (51). Inside the installation sleeve (51), a support plate (52) is installed. One end of the support plate (52) is respectively installed with two groups of feed pipes (53). The two groups of feed pipes (53) are respectively connected to a reagent tank (31) and an ink tank (32). A nozzle (54) is also installed on the support plate (52). A charging electrode (55) is installed at the bottom of the nozzle (54). A phase sensor (56) is installed at the bottom of the charging electrode (55). Two groups of deflection plates (57) are installed at the bottom of the phase sensor (56). A droplet velocity sensor and a recovery pipe are installed at the bottom of the deflection plate (57).

10. A combined heat dissipation, waterproof and dustproof inkjet printer according to claim 9, characterized in that: The controller (9) is installed inside the box body (11). A display screen and a control panel (91) are arranged on the box body (11). The display screen and the control panel (91) are respectively connected to the controller (9).

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