CN218577299U - Spray head structure of large-character code spraying machine - Google Patents

Abstract

The utility model discloses a shower nozzle structure of big character ink jet numbering machine, include: the nozzle plate, the mounting base and the pressure plate are arranged on the base; the pressing plate is fixedly arranged on one surface of the mounting base; the nozzle plate is fixedly arranged on the other surface of the mounting base; a driving device is fixedly arranged on the mounting base, and one end of the driving device is inserted into one surface of the mounting base; the other end of the driving device is abutted with the pressing plate; the other side of the mounting base is also provided with a spraying cavity, the nozzle plate is provided with a spraying hole, one end of the spraying hole is communicated with the spraying cavity, and the other end of the spraying hole is communicated with the external environment; to sum up, the utility model fixes the iron core sheath and the static core on the fixed base through the pressing plate, compared with the traditional mode of fixing the static core by using the threaded connection, the connection effect is more stable, and the working effect of the ink jet printer can be prevented from being influenced by the loosening of the threads; the number of ink drops sprayed out of the spray holes is correspondingly controlled by controlling the retraction time of the movable core, and compared with the traditional adjusting mode, the precision is higher and the uniformity is better.

Description

Spray head structure of large-character code spraying machine

Technical Field

The utility model relates to a spout a yard equipment technical field, concretely relates to big character ink jet numbering machine's shower nozzle structure.

Background

The nozzle structure of the existing large character code spraying machine generally comprises: the ink jet numbering machine comprises a static core module, a valve tube module, a movable core assembly, a driving coil and the like, and has larger size difference of ink drops sprayed by the ink jet numbering machine after normal assembly due to errors in the manufacturing process.

For the size uniformity of guaranteeing the spun ink droplet, current design is made the quiet core and can be adjusted, top at quiet core is threaded connection, thereby the length that stretches out through adjusting quiet core module limits the stroke that moves the core subassembly and open the size of control ink droplet, this kind of design is all very high to the required precision of parts machining manufacturing and production equipment, and then lead to high in production cost, inefficiency, and under the threaded connection's between quiet core and the equipment state, in case threaded connection takes place to become flexible, then can influence the size of ink droplet, lead to the inkjet state inhomogeneous.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to disclose a shower nozzle structure of big character ink jet numbering machine, solved the manual regulation that current ink jet numbering machine ink jet nozzle exists and go out the lower and easy not hard up problem of hookup location of china ink volume accuracy.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a kind of shower nozzle structure of the large character code-spraying machine, including: the ink jet printer comprises a nozzle plate, a mounting base and a plurality of pressing plates, wherein the mounting base is used for being fixedly connected with the ink jet printer; the plurality of pressing plates are fixedly arranged on one surface of the mounting base; the nozzle plate is fixedly arranged on the other surface of the mounting base; the mounting base is fixedly provided with a plurality of driving devices, and one ends of the driving devices are inserted into one surface of the mounting base; the other ends of the plurality of driving devices are correspondingly abutted with the plurality of pressing plates one by one; the other surface of the mounting base is also provided with a plurality of spraying cavities, and the driving ends of the driving devices penetrate through the mounting base and then correspondingly extend into the spraying cavities one by one; the nozzle plate is provided with a plurality of spray holes, one ends of the spray holes are communicated with the spray cavities in a one-to-one correspondence mode, and the other ends of the spray holes penetrate through the nozzle plate and are communicated with the external environment; the driving ends of the driving devices are respectively provided with a rubber block capable of plugging the jet holes; under the condition that the driving end of the driving device extends outwards, the rubber blocks are abutted with the spray holes in a one-to-one correspondence mode.

Optionally, the driving device includes: the iron core comprises an iron core sheath, a static core and a movable core; one end of the iron core sheath is inserted into the mounting base, and the other end of the iron core sheath is abutted with the pressing plate; the movable core is arranged at one end of the iron core sheath in a sliding manner; the static core is inserted at the other end of the iron core sheath; a driving coil capable of driving the movable core to move is sleeved outside the iron core sheath; the movable core also penetrates through the mounting base and then extends into the spraying cavity; the movable core is also provided with a limiting seat, and the rubber block is fixedly arranged on the limiting seat; and the movable core is also sleeved with a return spring, one end of the return spring is abutted against the limiting seat, and the other end of the return spring is abutted against the mounting base.

Optionally, a plurality of first limiting grooves are formed in one surface, facing the pressing plate, of the mounting base, first sealing rings are arranged in the first limiting grooves respectively, one side of each first sealing ring is in butt joint with the inner walls of the corresponding first limiting grooves, and the other side of each first sealing ring is in one-to-one corresponding butt joint with the corresponding iron core sheaths.

Optionally, a plurality of second limiting grooves are formed in one surface, facing the nozzle plate, of the mounting base, and the second limiting grooves are correspondingly wound outside the spraying cavities one by one; second sealing rings are contained in the second limiting grooves, one sides of the second sealing rings are abutted to the inner walls of the second limiting grooves in a one-to-one correspondence mode, and the other sides of the second sealing rings are abutted to the nozzle plate.

Optionally, the stationary core is in interference connection with the iron core sheath.

Optionally, the method further includes: the driving circuit board is fixedly arranged on the mounting base and is also electrically connected with the driving device.

Optionally, the nozzle plate is screwed to the mounting base.

Optionally, a plurality of the nozzles are arranged in a straight line.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a shower nozzle structure of big character ink jet numbering machine, include: the nozzle plate, the mounting base and the pressure plate are arranged on the base; the pressing plate is fixedly arranged on one surface of the mounting base; the nozzle plate is fixedly arranged on the other surface of the mounting base; a driving device is fixedly arranged on the mounting base, and one end of the driving device is inserted into one surface of the mounting base; the other end of the driving device is abutted with the pressing plate; the other side of the mounting base is also provided with a spraying cavity, the nozzle plate is provided with a spraying hole, one end of the spraying hole is communicated with the spraying cavity, and the other end of the spraying hole penetrates through the nozzle plate and then is communicated with the external environment; to sum up, the iron core sheath and the static core are fixed on the fixed base through the pressing plate, compared with the traditional mode of fixing the static core by using threaded connection, the utility model has more stable connection effect and can avoid the working effect of the ink-jet printer caused by the loosening of the threads; the quantity of ink drops sprayed out of the spray holes is correspondingly controlled by controlling the retraction time of the movable core, and compared with the method of adjusting the position of the static core, the method has the advantages of higher precision and better uniformity in ink jet quantity adjustment.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive effort.

FIG. 1 is a schematic view of an ink jet nozzle according to the present invention;

FIG. 2 is a schematic cross-sectional view taken along line AA of the closed state of the ink jet nozzle;

FIG. 3 is a schematic cross-sectional view of the AA section in an open state of the ink jet nozzle;

FIG. 4 is an enlarged view of the portion A of FIG. 2;

in the figure, 1, a nozzle plate; 11. spraying a hole; 2. mounting a base; 21. a spray chamber; 22. a first seal ring; 23. a second seal ring; 3. pressing a plate; 4. a drive device; 41. an iron core sheath; 42. a stationary core; 43. a movable core; 44. a drive coil; 45. a limiting seat; 46. a return spring; 47. a drive circuit board; 5. a rubber block.

Detailed Description

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the referenced device or element must be in a particular orientation, constructed and operated, and therefore should not be construed as limiting the present invention.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example one

The nozzle structure of the large character inkjet printing machine shown in fig. 1-4 comprises: the ink jet printing device comprises a nozzle plate 1, a mounting base 2 and a plurality of pressing plates 3, wherein the mounting base 2 is fixedly connected with the ink jet printing machine; the pressing plates 3 are fixedly arranged on one surface of the mounting base 2; the nozzle plate 1 is fixedly arranged on the other surface of the mounting base 2; a plurality of driving devices 4 are fixedly arranged on the mounting base 2, and one ends of the driving devices 4 are inserted into one surface of the mounting base 2; the other ends of the plurality of driving devices 4 are correspondingly abutted with the plurality of pressing plates 3 one by one; the other surface of the mounting base 2 is also provided with a plurality of spraying cavities 21, and the driving ends of the driving devices 4 penetrate through the mounting base 2 and then correspondingly extend into the spraying cavities 21 one by one; the nozzle plate 1 is provided with a plurality of spray holes 11, one ends of the spray holes 11 are communicated with the spray cavities 21 in a one-to-one correspondence manner, and the other ends of the spray holes 11 penetrate through the nozzle plate 1 and are communicated with the external environment; the driving ends of the driving devices 4 are respectively provided with a rubber block 5 which can block the jet holes 11; in the case where the driving end of the driving device 4 extends outward, the rubber blocks 5 are in contact with the nozzle holes 11 in a one-to-one correspondence.

Specifically, in a conventional handheld large format inkjet printer, the structure of the inkjet nozzle is usually that the stationary core 42 is connected to the platen 3 through a screw, so that the height of the stationary core 42 extending outward can be adjusted according to actual needs, and the stroke length of the movable core 43 opposite to the stationary core 42 can be correspondingly adjusted by adjusting the length of the stationary core 42 extending outward, and when the length of the stationary core 42 extending outward is longer, the stroke of the movable core 43 is shorter, and the time required for operating the movable core 43 at the same operating speed for one cycle is shortened, so that the amount of ink droplets ejected from the inkjet nozzle is reduced. Similarly, when the stationary core 42 contracts backward, the stroke of the movable core 43 is increased, the operating cycle of the movable core 43 is increased, and the size of the ink droplet discharged from the ink jet nozzle is increased. Because there is an error in the manufacturing process, that is, the sizes of the ink jet nozzles are not completely the same, for the same time that the moving core 43 is opened, the number of ink droplets ejected from different ink jet nozzles cannot be completely the same, and when the difference in the ink ejection amount exceeds a predetermined threshold, the stroke of the moving core 43 needs to be affected by adjusting the position of the stationary core 42, so as to adjust the ink ejection amount in the ink jet nozzles, so as to ensure that each orifice can eject ink uniformly in the same operation period. However, the following disadvantages exist in the adjustment structure and the adjustment method: on the one hand, the thread adjustment needs the manual adjustment of people to quiet core 42, and adjustment process efficiency is lower, and the jet ink volume after the manual adjustment also is difficult to unify, and on the other hand, quiet core 42 and clamp plate 3 threaded connection, the ink jet printer is in transportation, use, and the threaded connection position also receives external vibrations easily and takes place to become flexible, shift, and then leads to the play black volume of ink jet nozzle to change.

Therefore, in order to solve the above problems, the application provides a nozzle structure of a large-character inkjet printer; the body of the driving device 4 is fixedly connected with the pressing plate 3, so that the driving device 4 does not need to adjust the stroke of the driving end of the driving device 4 by adjusting the thread distance, and the ink output amount cannot be influenced by the looseness and the displacement of the thread connection position. In the actual use process, after the body of the driving device 4 is fixed, the driving end of the driving device 4 needs to be controlled to retract to open the spray hole 11, the spray cavity 21 is communicated with an ink supply system of the inkjet printer, that is, the spray cavity 21 is filled with ink, and when the driving end of the driving device 4 retracts and the spray hole 11 is opened, the inkjet printing can be started. In order to keep the amount of ink ejected from the plurality of nozzles 11 consistent, the ink ejection amount of the nozzles 11 needs to be correspondingly controlled by controlling the retraction time of the driving end of the driving device 4, and such a control manner is used, so that in the assembly process, the models of the driving device 4 are consistent, the position of the driving device 4 does not need to be independently adjusted according to the ink ejection amount, and only the retraction time of the driving device 4 needs to be correspondingly controlled in the ink ejection process, so that the ink ejection amounts in different nozzles 11 can be kept consistent, and the calculation of the retraction time of the specific driving device is not elaborated in detail in the present invention.

Further, the driving device 4 includes: an iron core sheath 41, a static core 42 and a movable core 43; one end of the iron core sheath 41 is inserted into the mounting base 2, and the other end of the iron core sheath 41 is abutted with the pressing plate 3; the movable core 43 is arranged at one end of the iron core sheath 41 in a sliding manner; the static core 42 is inserted at the other end of the iron core sheath 41; a driving coil 44 capable of driving the movable core 43 to move is sleeved outside the iron core sheath 41; the movable core 43 also passes through the mounting base 2 and then extends into the spraying cavity 21; the movable core 43 is also provided with a limiting seat 45, and the rubber block 5 is fixedly arranged on the limiting seat 45; the movable core 43 is further sleeved with a return spring 46, one end of the return spring 46 is abutted against the limiting seat 45, and the other end of the return spring 46 is abutted against the mounting base 2.

Specifically, the stationary core 42 functions to provide a fixing function, the driving coil 44 and the core sheath 41 are matched with each other, when the driving coil 44 is energized, the movable core 43 in the core sheath 41 is attracted by an attraction force, and is retracted upwards against the elastic force of the return spring 46, and when the coil is not energized, the movable core 43 is extended outwards under the action of the spring, so that the rubber block 5 is abutted on the spray hole 11. By adopting the structure, the device has the advantages of high interchangeability, convenient maintenance, low cost, good performance, convenience and practicability. And the distance between the driving coil 44 and the movable core 43 is short, so that the driving coil 44 is not required to have high driving force, and the cost can be effectively reduced.

Furthermore, a plurality of first limiting grooves are formed in one surface, facing the pressure plate 3, of the mounting base 2, a plurality of first sealing rings 22 are respectively arranged in the first limiting grooves, one side of each of the plurality of first sealing rings 22 is respectively abutted against the inner walls of the plurality of first limiting grooves, and the other side of each of the plurality of first sealing rings 22 is abutted against the plurality of iron core sheaths 41 in a one-to-one correspondence manner.

Specifically, the first sealing ring 22 can prevent ink in the spraying cavity 21 from leaking to other positions of the inkjet printer after passing through a gap between the movable core 43 and the mounting base 2, and further damage electronic components at other positions.

Furthermore, a plurality of second limiting grooves are formed in one surface, facing the nozzle plate 1, of the mounting base 2, and the second limiting grooves are correspondingly wound outside the spraying cavities 21 one by one; second sealing rings 23 are accommodated in the second limiting grooves, one sides of the second sealing rings 23 are abutted against the inner walls of the second limiting grooves in a one-to-one correspondence manner, and the other sides of the second sealing rings 23 are abutted against the nozzle plate 1.

Specifically, the second seal ring 23 is used to prevent ink in the ejection chamber 21 from leaking from a gap between the nozzle plate 1 and the mounting base 2.

Further, the stationary core 42 is in interference connection with the iron core sheath 41. The connection mode of interference connection is stable, firm, and the assembly process is simple quick, can reduce the assembly degree of difficulty, improves assembly efficiency.

Further, the method also comprises the following steps: and the driving circuit board 47 is fixedly arranged on the mounting base 2, and the driving circuit board 47 is also electrically connected with the driving device 4.

Specifically, the driving circuit board 47 may correspondingly control the energizing time of the driving coils 44 and further correspondingly control the opening time length of the nozzle hole 11 according to a predetermined program, in this embodiment, the driving circuit boards 47 and the driving coils 44 are in a one-to-one correspondence relationship, that is, each driving circuit board 47 controls one driving coil 44 correspondingly. The driving circuit board 47 is provided with a control device, specifically, the control device mainly includes a storage device for storing a predetermined program and a computing device for executing the predetermined program, wherein the computing device can be implemented in one or more of the following units: an Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a processor, a controller, a microcontroller, a microprocessor, other electronic units designed to perform the functions described herein, or a combination thereof.

Further, the nozzle plate 1 is screwed to the mounting base 2. Particularly, in the installation process, the nozzle plate 1 is in screw connection with the installation base 2, so that the assembly difficulty can be reduced, and the assembly efficiency is improved.

Further, the plurality of the nozzle holes 11 are arranged in a straight line.

In summary, the utility model fixes the stationary core 42 on the fixed base through the pressing plate 3, which has more stable connection effect compared with the traditional way of fixing the stationary core 42 by using the screw connection, and can avoid the loosening of the screw thread in the daily use process to affect the code spraying effect of the code spraying machine; the quantity of ink drops ejected from the nozzle 11 is correspondingly controlled by controlling the retraction time of the movable core 43, and compared with the method of adjusting the ink ejection quantity by adjusting the position of the static core 42, the speed of adjustment is faster and the precision is higher.

The present invention is not limited to the above embodiment, and various modifications and variations of the present invention are also intended to be included within the scope of the claims and the equivalent technical scope of the present invention if they do not depart from the spirit and scope of the present invention.

Claims (8)

1. The utility model provides a shower nozzle structure of big character ink jet numbering machine which characterized in that includes: the ink jet printer comprises a nozzle plate, a mounting base and a plurality of pressing plates, wherein the mounting base is used for being fixedly connected with the ink jet printer; the plurality of pressing plates are fixedly arranged on one surface of the mounting base; the nozzle plate is fixedly arranged on the other surface of the mounting base;

a plurality of driving devices are fixedly arranged on the mounting base, and one ends of the driving devices are all inserted into one surface of the mounting base; the other ends of the plurality of driving devices are correspondingly abutted with the plurality of pressing plates one by one;

the other surface of the mounting base is also provided with a plurality of spraying cavities, and the driving ends of the driving devices penetrate through the mounting base and then correspondingly extend into the spraying cavities one by one;

the nozzle plate is provided with a plurality of spray holes, one ends of the spray holes are communicated with the spray cavities in a one-to-one correspondence mode, and the other ends of the spray holes penetrate through the nozzle plate and are communicated with the external environment;

the driving ends of the driving devices are respectively provided with a rubber block capable of plugging the jet holes;

under the condition that the driving end of the driving device extends outwards, the rubber blocks are abutted with the spray holes in a one-to-one correspondence mode.

2. The head structure of a large character inkjet printer according to claim 1, wherein the driving means comprises: the iron core comprises an iron core sheath, a static core and a movable core;

one end of the iron core sheath is inserted into the mounting base, and the other end of the iron core sheath is abutted with the pressing plate; the movable core is arranged at one end of the iron core sheath in a sliding manner; the static core is inserted at the other end of the iron core sheath; a driving coil capable of driving the movable core to move is sleeved outside the iron core sheath;

the movable core also penetrates through the mounting base and then extends into the spraying cavity; the movable core is also provided with a limiting seat, and the rubber block is fixedly arranged on the limiting seat;

the movable core is further sleeved with a return spring, one end of the return spring is abutted to the limiting seat, and the other end of the return spring is abutted to the mounting base.

3. The nozzle structure of a large character inkjet printer according to claim 2, wherein a plurality of first limiting grooves are formed in a surface of the mounting base facing the pressing plate, a plurality of first sealing rings are respectively disposed in the plurality of first limiting grooves, one side of each of the plurality of first sealing rings is respectively abutted against an inner wall of each of the plurality of first limiting grooves, and the other side of each of the plurality of first sealing rings is abutted against the plurality of core sheaths in a one-to-one correspondence manner.

4. The nozzle structure of the large character inkjet printer according to claim 3, wherein a plurality of second limiting grooves are formed in a surface of the mounting base facing the nozzle plate, and the plurality of second limiting grooves are wound outside the plurality of nozzle cavities in a one-to-one correspondence manner; second sealing rings are contained in the second limiting grooves, one sides of the second sealing rings are abutted to the inner walls of the second limiting grooves in a one-to-one correspondence mode, and the other sides of the second sealing rings are abutted to the nozzle plate.

5. The nozzle structure of the large character inkjet printer according to any one of claims 2 to 4, wherein the stationary core is in interference connection with the iron core sheath.

6. The nozzle structure of a large character inkjet printer according to claim 1, further comprising: the driving circuit board is fixedly arranged on the mounting base and is also electrically connected with the driving device.

7. The head structure of an ink jet printer according to claim 1, wherein the nozzle plate is screwed to the mounting base.

8. The head structure of an ink jet printer for large characters according to claim 1, wherein said plurality of orifices are arranged in a straight line.

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