Ink jet concentration intelligent adjusting device of printing equipment

Abstract

The utility model discloses an ink jet concentration intelligent adjusting device of printing equipment, belongs to the technical field of printing equipment parts, and provides the ink jet concentration intelligent adjusting device which is used on the printing equipment and is more controllable in adjusting precision. The ink jet concentration intelligent adjusting device comprises an ink jet gun, a driver is arranged outside the ink jet gun in a sleeving mode, and a main body part of the driver is an electromagnetic coil; a permanent magnet column is arranged in the ink-jet gun, the lower end of the permanent magnet column is fixedly connected with a bolt, a piston ring sleeves the bolt, and a gap is formed between the piston ring and the inner wall of the ink-jet gun when the piston ring moves to an upper limit; when moving to the lower limit, the ink gun is tightly attached to the inner wall of the ink gun, the top end of the ink gun is fixedly connected with an end cap, and a pressure sensor is arranged on the end cap. According to the ink jet gun, the permanent magnet column connected with the gun bolt structure in the ink jet gun is designed, the permanent magnet column is driven by the electromagnetic force generated by the electromagnetic coil, and by changing the interval and frequency of forward and reverse electrification of the electromagnetic coil, the ink jet concentration in unit time can be changed, and the precision of concentration adjustment can be mastered more accurately.

Description

Technical Field

[0001] This application relates to the field of printing equipment components technology, and in particular to an intelligent inkjet density adjustment device for printing equipment. Background Technology

[0002] Printing equipment changes the depth of color by adjusting the ink density. Most existing printing equipment spraying mechanisms adjust the ink density by changing the ink pressure and ink duration. However, the precision of these two methods is difficult to control, which can easily cause the printed pattern to deviate from the desired design effect. Summary of the Invention

[0003] The purpose of this application is to provide an intelligent inkjet density adjustment device for printing equipment with more controllable adjustment precision.

[0004] To achieve the above objectives, this application provides an intelligent inkjet density adjustment device for a printing equipment: including an inkjet gun, an actuator is provided on the outer casing of the inkjet gun, the main body of the actuator is an electromagnetic coil, a permanent magnet column is provided inside the inkjet gun, a bolt is fixedly connected to the lower end of the permanent magnet column, a piston ring is provided on the outer casing of the bolt, when the piston ring moves to the upper limit, a gap is generated with the inner wall of the inkjet gun; when it moves to the lower limit, it is in close contact with the inner wall of the inkjet gun, an end cap is fixedly connected to the top of the inkjet gun, a pressure sensor is provided on the end cap, suitable for detecting the pressure of the ink in the inkjet gun, and the upper end of the end cap has a pipe connection end, suitable for connecting to an external ink delivery pipe for continuously supplying ink to the inkjet gun.

[0005] As a preferred embodiment, the inkjet gun includes an ink cartridge with an open upper end and an internal storage chamber. The ink cartridge has a smaller diameter relief groove at the bottom of the storage chamber, which is suitable for tightly fitting the outer side of the piston ring. The ink cartridge also has a smaller diameter extrusion chamber at the bottom of the relief groove, which is suitable for accommodating the bolt, and the bolt pressurizes the ink in the extrusion chamber.

[0006] As a preferred embodiment, the bolt has a coaxial limiting groove on its outer side, and the piston ring is made of rubber material and is embedded in the limiting groove, moving synchronously with the bolt.

[0007] As a preferred embodiment, the lower end of the ink cartridge has a nozzle, the lower end of which has an extrusion channel communicating with the extrusion chamber, and the outer side of the nozzle has a dirt-proof ring to prevent ink from splashing onto parts of the inkjet gun other than the nozzle.

[0008] As a preferred embodiment, the lower outer side of the ink cartridge has a support ring, the electromagnetic coil is wrapped around the ink cartridge and located on the support ring, and the electromagnetic coil is also fixedly connected to a junction box for easy wiring of the electromagnetic coil.

[0009] As a preferred embodiment, the upper end of the ink cartridge has an inner ring, and the end cap includes a sealing sleeve adapted to be fitted over the inner ring. The upper end of the sealing sleeve has a dust cover, and the center of the dust cover has a thickened handle. The tube connection end is located at the upper end of the thickened handle, and the lower end of the thickened handle also has an extension tube. The extension tube has a convection hole that penetrates the inner and outer walls, and the end cap has an injection channel that connects the tube connection end and the interior of the extension tube, ensuring that the ink can smoothly enter the inkjet gun.

[0010] As a preferred embodiment, the outer surface of the embedded ring is provided with external threads, and the inner wall of the sealing sleeve is provided with internal threads, which are suitable for engaging with the external threads of the embedded ring. The portion of the thickened handle located below the dust cover is provided with a sealing groove, and a sealing ring is fitted inside the sealing groove, which is suitable for close contact with the inner wall of the embedded ring, thereby isolating the storage chamber from the extrusion chamber.

[0011] As a preferred embodiment, the thickened handle has a through hole that passes through the upper and lower end faces. The pressure sensor includes a probe, and the upper end of the probe is fixedly connected to a signal connection terminal by a fixing ring. The probe extends into the storage cavity through the through hole. The fixing ring is fixedly connected to the thickened handle to ensure the stable configuration of the pressure sensor.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] (1) By designing a permanent magnet column connected to the bolt structure inside the inkjet gun, the electromagnetic force generated by the electromagnetic coil drives the permanent magnet column. By changing the interval and frequency of the forward and reverse energization of the electromagnetic coil, not only can the inkjet density per unit time be changed, but the accuracy of the density adjustment can also be more precisely controlled.

[0014] (2) In this application, the electromagnetic coil can transmit force without contacting the permanent magnet column, eliminating the transmission structure and reducing the overall structural complexity of the inkjet gun. This not only reduces the failure rate but also gives the inkjet gun a better sealing effect. Attached Figure Description

[0015] Figure 1 This is a first three-dimensional schematic diagram of the overall structure of the intelligent inkjet density adjustment device of the printing equipment.

[0016] Figure 2 This is a second three-dimensional schematic diagram of the overall structure of the intelligent inkjet density adjustment device of the printing equipment.

[0017] Figure 3 This is a three-dimensional sectional view of the overall structure of the intelligent inkjet density adjustment device of the printing equipment.

[0018] Figure 4This is a three-dimensional cross-sectional view of the inkjet gun of the intelligent inkjet density adjustment device of the printing equipment.

[0019] Figure 5 This is a three-dimensional structural diagram of the connection between the permanent magnet column and the gun bolt of the intelligent inkjet density adjustment device of the printing equipment.

[0020] Figure 6 This is a three-dimensional structural diagram of the gun bolt of the intelligent inkjet density adjustment device of the printing equipment.

[0021] Figure 7 This is a first three-dimensional structural cross-sectional view of the end cap of the intelligent inkjet density adjustment device of the printing equipment.

[0022] Figure 8 This is a second three-dimensional structural cross-sectional view of the end cap of the intelligent inkjet density adjustment device of the printing equipment.

[0023] Figure 9 This is a three-dimensional structural diagram of the pressure sensor of the intelligent inkjet density adjustment device of the printing equipment.

[0024] Figure 10 This is a three-dimensional structural diagram of the driver of the intelligent inkjet density adjustment device for the printing equipment.

[0025] In the diagram: 1. Inkjet gun; 101. Gun head; 102. Anti-fouling ring; 103. Support ring; 104. Ink cartridge; 105. Embedded ring; 106. Storage chamber; 107. Relief groove; 108. Extrusion chamber; 109. Extrusion channel; 2. Driver; 201. Electromagnetic coil; 202. Junction box; 3. End cap; 301. Sealing sleeve; 302. Dust cover; 303. Thickened handle; 304. Through hole; 305. Pipe connection end; 306. Injection channel; 307. Extension tube; 308. Sealing groove; 309. Convection hole; 4. Pressure sensor; 401. Probe; 402. Fixing ring; 403. Signal connection end; 5. Permanent magnet column; 6. Bolt; 601. Limiting groove; 7. Piston ring; 8. Sealing ring. Detailed Implementation

[0026] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0028] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0030] like Figure 1-10 The inkjet density intelligent adjustment device of the printing equipment shown includes an inkjet gun 1, an inkjet gun 1 with a driver 2 installed on its outer casing, the main body of the driver 2 being an electromagnetic coil 201, an ink cartridge 104 with a support ring 103 on the lower outer side of the ink cartridge 104, the electromagnetic coil 201 being wrapped around the ink cartridge 104 and located on the support ring 103, the electromagnetic coil 201 being supported by the support ring 103, the electromagnetic coil 201 itself also having a housing, the housing usually being made of plastic, the housing of the electromagnetic coil 201 is also fixedly connected to a junction box 202, the terminals inside the junction box 202 being electrically connected to the wires of the electromagnetic coil 201, the controller of the printing equipment being connected to the terminals inside the junction box 202 to supply power to the electromagnetic coil 201.

[0031] The ink cartridge 104 is open at the top and has a storage chamber 106 inside. A smaller diameter extrusion chamber 108 is formed at the bottom of the relief groove 107 in the ink cartridge 104, suitable for accommodating the bolt 6. A permanent magnet 5 is installed inside the inkjet gun 1, located within the storage chamber 106. The polarity of the permanent magnet 5 is the same as its own axis. The lower end of the permanent magnet 5 is fixedly connected to the bolt 6. A piston ring 7 is fitted around the bolt 6. In fact, a coaxial limiting groove 601 is formed on the outer side of the bolt 6. The piston ring 7, made of rubber, fits perfectly and is stably locked within the limiting groove 601. The ink cartridge 104 is located within the storage chamber 106. The bottom of the 06 has a smaller diameter relief groove 107, which is suitable for close contact with the outer side of the piston ring 7. When the permanent magnet column 5 is subjected to electromagnetic force, it will drive the bolt 6 to move up and down. When the piston ring 7 moves to the upper limit with the bolt 6, a gap is created between it and the inner wall of the inkjet gun 1. The ink in the storage chamber 106 will enter the extrusion chamber 108 through the relief groove 107. When the piston ring 7 moves to the lower limit, it is in close contact with the inner wall of the inkjet gun 1. At this time, the extrusion chamber 108 and the storage chamber 106 will be separated by the piston ring 7. As the piston ring 7 continues to descend, it will push the ink in the relief groove 107 into the extrusion chamber 108.

[0032] The lower end of the ink cartridge 104 has a nozzle 101, which is the part from which the ink is ejected. The lower end of the nozzle 101 has an extrusion channel 109 that communicates with the extrusion chamber 108. The ink is ejected through this channel after being pressurized. The outer side of the nozzle 101 has a dirt-proof ring 102, which is generally located below the mounting bracket of the inkjet gun 1 and is directly fixed to the mounting bracket. It can prevent ink from adhering to parts other than the nozzle 101 of the inkjet gun 1.

[0033] An end cap 3 is fixedly connected to the top of the inkjet gun 1, and the upper end of the end cap 3 has a pipe connection end 305 for connecting to an external ink delivery tube, which can replenish the inkjet gun 1 with flowing ink. The upper end of the ink cartridge 104 has an integral inner ring 105. The end cap 3 includes a sealing sleeve 301 for fitting over the inner ring 105. In fact, the outer side of the inner ring 105 has an external thread, and the inner wall of the sealing sleeve 301 has an internal thread, which fits perfectly with the external thread of the inner ring 105, taking into account both stability and sealing. The upper end of the sealing sleeve 301 also has an integral dust cover 302. The center of the dust cover 302 has a thickened handle 303. The part of the thickened handle 303 located below the dust cover 302 has a sealing groove 308. A sealing ring 8 is fitted inside the sealing groove 308 for close contact with the inner wall of the inner ring 105, further increasing the sealing effect of the end cap 3 on the open end of the ink cartridge 104.

[0034] The tube end 305 is located at the upper end of the thickened handle 303, and the lower end of the thickened handle 303 also has an extension tube 307. The lower end of the extension tube 307 is usually sealed, but the side wall of the extension tube 307 has several convection holes 309 that penetrate the inner and outer walls. The end cap 3 has an injection channel 306 that connects the tube end 305 and the inside of the extension tube 307, so that the ink can be smoothly injected into the inkjet gun 1.

[0035] A pressure sensor 4 is also provided on the end cap 3 to detect the pressure of the ink in the inkjet gun 1, thereby determining whether the ink in the inkjet gun 1 needs to continue to be injected. The thickened handle 303 has a through hole 304 that passes through the upper and lower end faces. The pressure sensor 4 includes a probe 401. The upper end of the probe 401 is fixedly connected to a signal connection terminal 403 through a fixing ring 402. It needs to be electrically connected to the processor of the printing equipment through a signal line. The probe 401 extends into the storage chamber 106 through the through hole 304. The fixing ring 402 is fixedly connected to the thickened handle 303 to ensure the stable installation of the pressure sensor 4.

[0036] Working principle: In the initial state, the piston ring 7 is fully submerged in the relief groove 107 at the lower limit. The external ink delivery pump injects ink into the storage chamber 106 through the pipe connection 305 and the extension tube 307 until the pressure sensor 4 detects that the ink pressure has reached the set value. The ink delivery pump then stops injecting. Subsequently, the electromagnetic coil 201 is energized, and the permanent magnet 5 moves the bolt 6 upward under the action of magnetic force. The piston ring 7 will compress the ink in the storage chamber 106, increasing the pressure detected by the pressure sensor 4. The ink delivery pump reverses to restore the pressure detected by the pressure sensor 4 to the set value. When the piston ring 7 completely disengages from the relief groove 107, the ink in the storage chamber 106 will quickly enter the relief groove 107 and the extrusion chamber 108 through the gap between the piston ring 7 and the relief groove 107. The pressure detected by the pressure sensor 4 will drop rapidly, and the ink delivery pump will switch states again. When ink is injected into the inkjet gun 1, the electromagnetic coil 201 is energized in reverse. Under the action of magnetic force, the permanent magnet 5 moves the bolt 6 downward, and the piston ring 7 returns to the relief groove 107, separating the storage chamber 106 from the extrusion chamber 108 again. The ink in the storage chamber 106 can no longer enter the relief groove 107, and the ink pressure in the storage chamber 106 quickly reaches the set value of the pressure sensor 4. The ink delivery pump will stop supplying ink, and the piston ring 7 continues to descend in the relief groove 107, pushing the ink in the relief groove 107 into the extrusion chamber 108. The ink pressure in the extrusion chamber 108 increases, and it is quickly ejected through the slender extrusion channel 109. In summary, by adjusting the time interval of the forward and reverse energization of the electromagnetic coil 201, the ink concentration per unit time can be changed. Furthermore, since the energization frequency of the electromagnetic coil 201 is controllable, it is easier to control the ink concentration with precision.

[0037] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. An intelligent inkjet density adjustment device for a printing equipment, characterized in that: The device includes an inkjet gun (1), an actuator (2) is mounted on the outer casing of the inkjet gun (1), the main body of the actuator (2) is an electromagnetic coil (201), a permanent magnet column (5) is provided inside the inkjet gun (1), a bolt (6) is fixedly connected to the lower end of the permanent magnet column (5), a piston ring (7) is mounted on the outer casing of the bolt (6), when the piston ring (7) moves to the upper limit, a gap is generated with the inner wall of the inkjet gun (1); when it moves to the lower limit, it is in close contact with the inner wall of the inkjet gun (1), an end cap (3) is fixedly connected to the top of the inkjet gun (1), a pressure sensor (4) is provided on the end cap (3) to detect the pressure of the ink in the inkjet gun (1), and the upper end of the end cap (3) has a pipe connection end (305) to connect to an external ink delivery pipe.

2. The intelligent inkjet density adjustment device for printing equipment as described in claim 1, characterized in that: The inkjet gun (1) includes an ink cartridge (104), which is open at the top and has a storage chamber (106) inside. The ink cartridge (104) has a smaller diameter relief groove (107) at the bottom of the storage chamber (106) to fit tightly against the outer side of the piston ring (7). The ink cartridge (104) has a smaller diameter extrusion chamber (108) at the bottom of the relief groove (107) to accommodate the bolt (6).

3. The intelligent inkjet density adjustment device for printing equipment as described in claim 2, characterized in that: The bolt (6) has a coaxial limiting groove (601) on its outer side, and the piston ring (7) is made of rubber material and is embedded in the limiting groove (601).

4. The intelligent inkjet density adjustment device for printing equipment as described in claim 3, characterized in that: The lower end of the ink cartridge (104) has a nozzle (101), and the lower end of the nozzle (101) has an extrusion channel (109) communicating with the extrusion chamber (108). The outer side of the nozzle (101) has a dirt-proof ring (102).

5. The intelligent inkjet density adjustment device for printing equipment as described in claim 4, characterized in that: The lower outer side of the ink cartridge (104) has a support ring (103), the electromagnetic coil (201) is wrapped around the ink cartridge (104) and located on the support ring (103), and the electromagnetic coil (201) is also fixedly connected to a junction box (202).

6. The intelligent inkjet density adjustment device for printing equipment as described in any one of claims 2 to 5, characterized in that: The upper end of the ink cartridge (104) has an inner ring (105), and the end cap (3) includes a sealing sleeve (301) adapted to be fitted over the inner ring (105). The upper end of the sealing sleeve (301) has a dust cover (302), and the center of the dust cover (302) has a thickened handle (303). The pipe end (305) is located at the upper end of the thickened handle (303), and the lower end of the thickened handle (303) also has an extension cylinder (307). The extension cylinder (307) has a convection hole (309) that penetrates the inner and outer walls. The end cap (3) has an injection channel (306) that connects the pipe end (305) and the interior of the extension cylinder (307).

7. The intelligent inkjet density adjustment device for printing equipment as described in claim 6, characterized in that: The outer side of the inner ring (105) is provided with an external thread, and the inner wall of the sealing sleeve (301) is provided with an internal thread, which is suitable for engaging with the external thread of the inner ring (105). The thickened handle (303) located below the dust cover (302) is provided with a sealing groove (308), and a sealing ring (8) is fitted inside the sealing groove (308), which is suitable for close contact with the inner wall of the inner ring (105).

8. The intelligent inkjet density adjustment device for printing equipment as described in claim 7, characterized in that: The thickened handle (303) has a through hole (304) that passes through the upper and lower end faces. The pressure sensor (4) includes a probe (401). The upper end of the probe (401) is fixedly connected to a signal connection terminal (403) through a fixing ring (402). The probe (401) extends into the storage chamber (106) through the through hole (304). The fixing ring (402) is fixedly connected to the thickened handle (303).

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