Printing device with adjustable nozzle position, mounting piece, printing module and printing equipment

Abstract

The utility model provides a printing device with an adjustable nozzle position, a mounting piece, a printing module and printing equipment, the printing device with the adjustable nozzle position comprises the following elements: the mounting piece is provided with a mounting groove and at least one first magnetic element, the first magnetic element comprises an electrified coil and a nozzle, and at least part of the first magnetic element is mounted in the mounting groove; the spray head comprises a spraying part extending in the first direction and is provided with a second magnetic element, the first magnetic element and the second magnetic element are magnetically matched to drive the spray head to deflect around an axis in the mounting groove, and the axis is parallel to or intersects with the first direction; the deflection angle and the deflection direction of the second magnetic element and the spray head are controlled by controlling the magnitude and / or the current direction of the electrified current of the electrified coil, so that the spray head is deflected to a preset position by a certain angle, the position adjustment of the spray head can be automatic, manual operation is reduced, the assembly efficiency of the spray head is improved, and the mounting consistency of all the spray heads is ensured. The printing quality is ensured.

Description

Technical Field

[0001] This utility model relates to the field of printing device technology, and in particular to a printing device, mounting component, printing module and printing equipment with adjustable nozzle position. Background Technology

[0002] In the field of inkjet printing, printheads are crucial printing components of printing equipment. Currently, to improve printing efficiency, multiple printheads are typically integrated and mounted on a printhead plate. The printing accuracy of the printhead is a critical parameter determining the quality of the printed image. Printhead accuracy depends not only on the manufacturing precision of the printhead itself and the manufacturing precision of the printhead plate, but also on the installation precision of individual printheads and the splicing precision between multiple printheads. Currently, when installing printheads into the mounting slots on the printhead plate, inaccurate positioning of individual printheads within the slots can lead to misalignment. Furthermore, the parallelism between multiple printheads cannot be guaranteed, resulting in low splicing precision between adjacent printheads and consequently, poor printed image quality.

[0003] The existing nozzle adjustment mechanism includes a wedge-shaped guide block positioned between the nozzle adapter plate and the nozzle base plate along a first direction and a spring positioned along a second direction. By manually adjusting the cross-sectional change of the wedge-shaped guide block in the first direction and the elastic force provided by the spring in the second direction, the nozzle adapter plate and the nozzle are deflected, thereby adjusting the position of the nozzle adapter plate on the nozzle base plate in the second direction. This adjustment mechanism is difficult to precisely control the nozzle adjustment angle, relies on manual operation, requires multiple adjustments, is cumbersome, cannot ensure the consistency of adjustment for multiple nozzles, has low adjustment accuracy, and results in low nozzle assembly efficiency. Utility Model Content

[0004] This invention addresses the problems existing in the prior art by providing a printing device with adjustable printhead position that offers high assembly efficiency and ensures consistent printhead installation.

[0005] This utility model provides a print head position adjustable printing device, comprising: a mounting member having a mounting groove and at least one first magnetic element, the first magnetic element including an energized coil; a print head, at least partially mounted in the mounting groove, the print head including a jetting portion extending along a first direction, the print head having a second magnetic element, the first magnetic element and the second magnetic element magnetically cooperating to drive the print head to deflect around an axis within the mounting groove, the axis being parallel to or intersecting the first direction.

[0006] In one embodiment, the nozzle includes a connecting portion that protrudes outward relative to the spray portion, the second magnetic element is connected to the connecting portion, and the mounting groove includes a first mounting groove for mounting the spray portion and a second mounting groove for receiving the connecting portion, wherein the first mounting groove extends through the mounting member along a first direction.

[0007] In one embodiment, there are two first magnetic elements arranged at intervals, and the second magnetic element is located between the two first magnetic elements.

[0008] In one embodiment, the first magnetic element further includes an iron core, the energized coil is wound around the iron core, the iron core includes a first magnetic segment and a second magnetic segment located on opposite sides of the second magnetic element, and an intermediate magnetic segment connecting the first magnetic segment and the second magnetic segment on the same side, the first magnetic segment, the second magnetic segment and the intermediate magnetic segment enclose a groove, and the two ends of the second magnetic element are respectively placed in the grooves of the two iron cores.

[0009] In one embodiment, the two first magnetic elements are arranged in the second direction, the bottom wall of the second mounting groove is provided with a sliding groove extending along a third direction, the third direction intersecting with the second direction, the second magnetic element is connected to a sliding column, one end of the sliding column is located in the sliding groove and can move along the sliding groove;

[0010] And / or, the second magnetic element is a permanent magnet.

[0011] In one embodiment, the nozzle is mounted in the mounting groove along a first direction. The nozzle has two connecting parts located on opposite sides of the spray section. One of the connecting parts has the second magnetic element. The mounting member has a limiting shaft arranged along the first direction. The other connecting part is fitted onto the limiting shaft and can deflect around the limiting shaft.

[0012] In one embodiment, the mounting component is provided with two limiting members that restrict the deflection angle of the second magnetic element, and the two limiting members are located on both sides of the second magnetic element;

[0013] And / or, an elastic limiting part is provided between the nozzle and the mounting component.

[0014] In one embodiment, the mounting component is provided with a limiting member that restricts the movement of the nozzle along a side away from the mounting groove, and the limiting member is detachably connected to the mounting component.

[0015] In one embodiment, the connecting part is provided with a first contact, the mounting member is provided with an electrical connector, the electrical connector is provided with a second contact that can be electrically connected to the first contact, and the first contact and the second contact are in arc-shaped contact.

[0016] In one embodiment, the mounting slot is provided with an electromagnet that can be magnetically connected to the connecting portion along a first direction, and the electromagnet is electrically connected to the electrical connector; or, the connecting portion is provided with a third magnetic element, the mounting slot is provided with an electromagnet that can be magnetically connected to the third magnetic element along a first direction, and the electromagnet is electrically connected to the electrical connector.

[0017] In one embodiment, the printhead position adjustable printing device further includes a clamping member located on the side of the printhead away from the mounting member, and a drive mechanism for driving the clamping member to press the printhead toward the side near the mounting groove or to release the printhead, the drive mechanism being electrically connected to the electrical connector.

[0018] By adopting the above structure, this utility model has the following advantages compared with the prior art:

[0019] This invention relates to an adjustable printhead position printing device. A first magnetic element is provided in the mounting component, and a second magnetic element is provided in the printhead. The magnetic interaction between the first and second magnetic elements deflects the printhead to a preset position. When the second magnetic element deflects under the magnetic field effect of the first magnetic element, it can drive the printhead to deflect together. By controlling the magnitude and / or direction of the energized coil of the first magnetic element, the deflection angle and direction of the second magnetic element and the printhead are controlled, thereby deflecting the printhead to a certain angle to the preset position. This automates printhead position adjustment, reduces manual operation, improves printhead assembly efficiency, ensures the consistency of all printhead installations, and guarantees print quality.

[0020] This utility model also provides a mounting component for cooperating with a printhead in a printhead position-adjustable printing device as described above. The printhead includes an ejection portion extending along a first direction and is provided with a second magnetic element. The mounting component is a mounting component in the position-adjustable printing device as described above. The mounting component has a mounting groove and at least one first magnetic element. The first magnetic element includes an energized coil. The mounting groove is configured to receive at least a portion of the printhead. The first magnetic element is configured to magnetically engage with the second magnetic element to drive the printhead to deflect within the mounting groove about an axis, which is parallel to or intersects the first direction. The mounting component can cooperate with a printhead provided with a second magnetic element, enabling printhead position adjustment, improving printhead assembly efficiency, ensuring consistency in the installation of all printheads, and guaranteeing print quality.

[0021] This utility model also provides a printing module, which is at least partially installed in a mounting slot of a mounting member in any of the above-described printhead position-adjustable printing devices. The mounting member is provided with a first magnetic element. The module includes a printhead, which is a printhead in any of the above-described position-adjustable printing devices, and the printhead includes an ejection portion extending along a first direction. The printhead is provided with a second magnetic element, which is configured to magnetically engage with the first magnetic element to drive the printhead to deflect within the mounting slot about an axis, the axis being parallel to or intersecting the first direction. The printing module can cooperate with the mounting member provided with the first magnetic element, enabling printhead position adjustment, improving printhead assembly efficiency, ensuring consistency in the installation of all printheads, and guaranteeing print quality.

[0022] This utility model also provides a printing device, including any of the printhead position adjustable printing devices described above. Because the printing device includes a position adjustable printing device, it has the same technical effects as the position adjustable printing device. Attached Figure Description

[0023] Figure 1 This is a three-dimensional assembly schematic diagram of the printing device according to an embodiment of the present invention;

[0024] Figure 2 yes Figure 1 Top view;

[0025] Figure 3 yes Figure 2 Sectional view along direction AA;

[0026] Figure 4 yes Figure 3 Enlarged schematic diagram of the structure of section B in the middle;

[0027] Figure 5 yes Figure 1 A three-dimensional structural diagram of the nozzle;

[0028] Figure 6 yes Figure 1 A three-dimensional structural diagram of the mounting plate in the middle;

[0029] Figure 7 This is a schematic diagram of the structure of the third magnetic element and the electromagnet in an embodiment of this utility model;

[0030] Figure 8 This is a schematic diagram of another embodiment of the present invention showing the structure of the first magnetic element and the second magnetic element working together;

[0031] Figure 9 This is a schematic diagram of the structure of four other combinations of the first magnetic element and the second magnetic element in this embodiment of the present invention;

[0032] Figure 10This is a schematic diagram of the structure of the clamping component and the nozzle in an embodiment of the present invention;

[0033] Figure 11 This is a schematic diagram of the structure of the limiting member and the nozzle in an embodiment of the present invention.

[0034] Labeling: Mounting component 1; Mounting slot 11; First mounting slot 111; Second mounting slot 112; First magnetic element 12; Energized coil 121; Iron core 122; First magnetic segment 1221; Second magnetic segment 1222; Intermediate magnetic segment 1223; Groove 1224; Limiting shaft 13; Electrical connector 14; Second contact 141; Electromagnet 15; Slide groove 16; Limiting component 17; Arc groove 18; Elastic limiting part 19;

[0035] Nozzle 2; Spraying part 21; Connecting part 22; Second magnetic element 23; First contact 24; Third magnetic element 25; Through hole 26; Sliding column 27; Movable column 28;

[0036] Clamping component 31; drive mechanism 32; limiting component 33; fastener 34. Detailed Implementation

[0037] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] like Figure 1-11 As shown, this utility model protects a printhead position adjustable printing device, including a mounting component 1 and a printhead 2. The mounting component 1 is provided with a mounting groove 11 and at least one first magnetic element 12. The first magnetic element 12 includes an energized coil 121. At least a portion of the printhead 2 is mounted in the mounting groove 11. The printhead 2 includes a jetting portion 21 extending along a first direction. The printhead 2 is provided with a second magnetic element 23. The first magnetic element 12 and the second magnetic element 23 are magnetically coupled to drive the printhead 2 to deflect around an axis within the mounting groove 11. The axis is parallel to or intersects the first direction. When the second magnetic element 23 deflects under the magnetic field effect of the first magnetic element 12, it can drive the printhead 2 to deflect together. By controlling the magnitude and / or direction of the energized current in the coil 121 of the first magnetic element 12, the deflection angle and direction of the second magnetic element 23, along with the printhead 2, are controlled. This deflects the printhead 2 to a preset position, automating the printhead 2's position adjustment, reducing manual operation, improving printhead 2 assembly efficiency, ensuring consistency in the installation of all printheads 2, and guaranteeing print quality. Specifically, adjusting the printhead 2 to the preset position can involve deflecting it from an inclined state to a horizontal state, or adjusting it to a set inclined state, depending on the actual working needs of the printhead 2. Figure 2 As shown, the first direction can be the up and down direction (i.e., Figure 2The Z-direction shown can be a vertical line parallel to the up and down direction, or the first direction can be a horizontal direction (i.e., the Z-direction). Figure 2 The axis shown is a vertical line that intersects the horizontal direction perpendicularly (in the X direction). In this embodiment, the nozzle 2 is installed in the mounting groove 11 of the mounting member 1 along a first direction, which is the up-down direction (i.e., the vertical direction). Figure 2 (The Z direction is shown).

[0039] To control the magnitude and direction of the current flowing through the energized coil 121, the printhead position adjustable printing device also includes a control circuit. The energized coil 121 and the control circuit are electrically connected. The control circuit includes an electrically connected current adjustment unit and a commutation unit. The commutation unit is used to change the direction of the current flowing through the energized coil 121, thereby changing the direction of the magnetic field of the first magnetic element 12. The magnitude of the magnetic force on the first magnetic element 12 is adjusted by controlling the magnitude of the current input to the energized coil 121. To precisely control the magnitude of the current in the energized coil 121, pulse width modulation (PWM), adjustable voltage sources, current sensors, and feedback control can be used. These are existing technologies and will not be described in detail here.

[0040] like Figure 1 , 5 As shown in Figure 6, the nozzle 2 includes a connecting portion 22 protruding outward relative to the spray section 21. The second magnetic element 23 is connected to the connecting portion 22. The mounting groove 11 includes a first mounting groove 111 for mounting the spray section 21 and a second mounting groove 112 for receiving the connecting portion 22. The first mounting groove 111 penetrates the mounting member 1 along a first direction Z. The connecting portion 22 is restricted to deflection within the plane of the mounting groove 11, improving the stability of the nozzle 2's deflection movement.

[0041] The number of first magnetic elements 12 can be one, two, or more than two. When the number of first magnetic elements 12 is two or more, multiple first magnetic elements 12 can be distributed on opposite sides of the second magnetic element 23, or multiple first magnetic elements 12 can be arranged around the second magnetic element 23. This utility model does not limit the number and arrangement of the first magnetic elements 12, as long as the deflection angle range of the nozzle 2 can be met to adjust the nozzle 2 to the preset position.

[0042] like Figure 1 , 5 As shown in Figures 8-9, to enhance the magnetic field strength and performance generated by the energized coil 121, the first magnetic element 12 includes an iron core 122. The energized coil 121 is wound around the iron core 122. When the energized coil 121 is energized, it generates a magnetic field. The iron core 122 is magnetized and forms N poles and S poles. The shape of the iron core 122 can be strip-shaped, U-shaped, E-shaped, ring-shaped, arc-shaped, etc. The shape of the iron core 122 is not limited to the examples mentioned above.

[0043] like Figure 1 , 5 As shown in Figures 8-9, the second magnetic element 23 can be a permanent magnet made of permanent magnet material. The shape of the permanent magnet can be strip, rectangle, or hollow cylinder, etc., and its shape is not limited to the examples mentioned above. It can magnetically cooperate with the first magnetic element 12 to deflect the nozzle 2 to a predetermined angle to a preset position. One end of the second magnetic element 23 is the S pole and the other end is the N pole. Alternatively, the second magnetic element 23 can be an electromagnet. When the coil of the electromagnet is energized, its function is similar to that of the permanent magnet. Of course, the second magnetic element 23 can also be other elements besides those mentioned above, which can achieve magnetic connection with the first magnetic element 12 to adjust the position of the nozzle 2. In this embodiment, the second magnetic element 23 is a permanent magnet with a rectangular structure. Its two ends are divided into N and S poles. A mounting hole is provided in the middle section of the permanent magnet to facilitate connection with a fastener. The permanent magnet is fixedly connected to the connecting part 22 via the fastener. Alternatively, other methods can be used to fix the permanent magnet to the connecting part 22. The permanent magnet can be embedded in the connecting part 22, or it can be located on the side of the connecting part 22 near the bottom of the second mounting groove 112. Preferably, the second magnetic element 23 and the iron core 122 are at least partially located on the same plane, which facilitates the deflection of the second magnetic element 23 and makes the deflection process more controllable.

[0044] To facilitate control of the deflection angle and direction of the nozzle 2, the arrangement direction of the second magnetic element 23 in the mounting groove 11 is the same as that of the nozzle 2 in the mounting groove 11. That is, the second magnetic element 23 and the nozzle 2 deflect synchronously to a horizontal state or a set inclined state. Of course, the arrangement direction of the second magnetic element 23 in the mounting groove 11 can also be different from that of the nozzle 2 in the mounting groove 11, forming a predetermined angle α between them. When the nozzle 2 is deflected to a horizontal state or an inclined state by controlling the deflection of the first magnetic element 12, the predetermined angle α must be taken into account.

[0045] In some embodiments, when the deflection angle and deflection direction of the second magnetic element 23 are controlled by a first magnetic element 12, the structure of the first magnetic element 12 can vary, and the arrangement of the first magnetic element 12 can be adjusted accordingly. Two examples are given below, but the method is not limited to these two examples. Example 1: Figure 9As shown in (i), the core 122 of the first magnetic element 12 is generally U-shaped or C-shaped. The core 122 includes a first magnetic segment 1221 and a second magnetic segment 1222 located on opposite sides of the second magnetic element 23, and an intermediate magnetic segment 1223 connecting the first magnetic segment 1221 and the second magnetic segment 1222 on the same side. The first magnetic segment 1221, the second magnetic segment 1222 and the intermediate magnetic segment 1223 form a groove 1224. One end of the second magnetic element 23 is placed in the groove 1224. Taking the adjustment of nozzle 2 from an inclined state to a horizontal state as an example, for ease of description of the implementation principle, it is assumed that the arrangement direction of the second magnetic element 23 in the mounting groove 11 is the same as the arrangement direction of nozzle 2 in the mounting groove 11 (this assumption applies to the principle description of any of the following examples). When the N pole of the second magnetic element 23 is placed in the groove 1224 and tilted towards the end closer to the first magnetic segment 1221, a corresponding positive current is passed through the energized coil 121, making the second magnetic segment 1222 the S pole, and thus the second magnetic segment 1222 becomes the S pole. The magnetic element 23 generates an attractive force, causing the second magnetic element 23 to deflect at a certain angle toward the second magnetic segment 1222, and the nozzle 2 is adjusted from an inclined state to a horizontal state. Correspondingly, when the N pole of the second magnetic element 23 is tilted toward the end closer to the second magnetic segment 1222, a reverse current of the corresponding magnitude is passed through the energized coil 121, making the first magnetic segment 1221 the S pole, causing the second magnetic element 23 to deflect at a certain angle toward the first magnetic segment 1221, and the nozzle 2 is adjusted from an inclined state to a horizontal state.

[0046] Example 2: such as Figure 9 As shown in (ii), the core 122 of the first magnetic element 12 is roughly strip-shaped. The core 122 has a first section and a second section arranged opposite to each other. The core 122 is located on one side of the second magnetic element 23 along its length, and the first section is closer to one end of the second magnetic element 23. Taking the adjustment of the nozzle 2 from an inclined state to a horizontal state as an example, to facilitate the description of the implementation principle, when the N pole of the second magnetic element 23 is tilted towards the end closer to the first section, a current of a corresponding magnitude is passed through the energizing coil 121, making the first section the N pole, generating a repulsive force on the second magnetic element 23, causing the second magnetic element 23 to deflect away from the first section by a certain angle, and the nozzle 2 is adjusted from an inclined state to a horizontal state. When the N pole of the second magnetic element 23 is tilted towards the end away from the first section, a reverse current of a corresponding magnitude is passed through the energizing coil 121, making the first section the S pole, generating a magnetic attraction force on the second magnetic element 23, causing the second magnetic element 23 to deflect towards the end closer to the first section by a certain angle, and the nozzle 2 is adjusted from an inclined state to a horizontal state.

[0047] In other embodiments, such as Figure 1 , Figure 8 , Figure 9 (iii) Figure 9(iv) illustrates how the deflection angle and direction of the second magnetic element 23 are controlled by two first magnetic elements 12. Specifically, there are two first magnetic elements 12 arranged at intervals, and the second magnetic element 23 is located between the two first magnetic elements 12. The following section addresses... Figure 8 , Figure 9 (iii) Figure 9 (iv) Specific description.

[0048] Example 3: such as Figure 8 As shown, the core 122 structure of the two first magnetic elements 12 in this example is the same as that of the first magnetic element 122 in Example 1, except that the number of first magnetic elements 12 differs. The two ends of the second magnetic element 23 are respectively placed in the grooves 1224 of the two cores 122. The two first magnetic elements 12 can work simultaneously or not simultaneously. The current can be supplied to the coils 121 of both first magnetic elements 12 or to one of the coils 121, depending on the direction and angle of deflection required by the nozzle 2. When both first magnetic elements 12 are selected to work simultaneously, the position of the nozzle 2 is adjusted by changing the direction and magnitude of the force on the second magnetic element 23 by controlling the magnitude and / or direction of the current supplied to the two first magnetic elements 12. Taking the adjustment of nozzle 2 from an inclined state to a horizontal state as an example, for ease of description of the implementation principle, the winding direction of the energized coils 121 of the two first magnetic elements 12 is the same. The first magnetic element 12 located on the left is marked as 12a, and the first magnetic element 12 located on the right is marked as 12b. When the N pole of the second magnetic element 23 is located in the groove 1224 of the first magnetic element 12a, and the S pole of the second magnetic element 23 is located in the groove 1224 of the first magnetic element 12b, and the N pole of the second magnetic element 23 is tilted towards the end of the first magnetic segment 1221 close to the first magnetic element 12a, a corresponding positive current is passed through the first magnetic element 12a, and a corresponding reverse current is passed through the first magnetic element 12b. This causes the second magnetic element 23 to be subjected to a magnetic attraction force towards the end close to the second magnetic segment 1222, causing the second magnetic element 23 to deflect towards the end close to the second magnetic segment 1222 by a certain angle, and the nozzle 2 is adjusted from an inclined state to a horizontal state.

[0049] like Figure 8As shown, to achieve a wider range of position adjustment for the nozzle 2 on the mounting component 1, the arrangement direction of the two first magnetic elements 12 is defined as the second direction X. The bottom wall of the second mounting groove 112 is provided with a sliding groove 16 extending along a third direction Y, which intersects with the second direction X. The nozzle 2 is mounted in the mounting groove 112 along the first direction Z. Preferably, the third direction Y is perpendicular to the second direction X, and the first direction Z is perpendicular to both the third direction Y and the second direction X. The second magnetic element 23 is fixedly connected to a sliding post 27, one end of which is located in the sliding groove 16 and can move along the sliding groove 16. When the resultant force on the second magnetic element 23 is along the third direction Y, the sliding column 27 moves along the slide groove 16, and the second magnetic element 23 moves along the third direction Y to adjust its position. The range of movement of the second magnetic element 23 along the third direction Y is the distance d between the two opposing surfaces of the first magnetic segment 1221 and the second magnetic segment 1222 of the first magnetic element 12. The maximum range of the deflection angle of the second magnetic element 23 is defined by one end of the second magnetic element 23 contacting the first magnetic segment 1221 of one first magnetic element 12 and the other end of the second magnetic element 23 contacting the second magnetic segment 1222 of another first magnetic element 12.

[0050] In another example, such as Figure 1-2 As shown, the core 122 structure of the two first magnetic elements 12 in this example is the same as that of the first magnetic element 12 in Example 1. The two first magnetic elements 12 can be located near the same end of the second magnetic element 23. For example, both first magnetic elements 12 are close to the N pole of the second magnetic element 23, which is different from the example shown. Figure 8 The two ends of the second magnetic element 23 shown are respectively placed in the grooves 1224 of the two iron cores 122. By controlling the magnitude and / or direction of the current passed through the two first magnetic elements 12, the direction and magnitude of the force on the second magnetic element 23 can also be changed, so as to deflect the nozzle 2 and adjust the position of the nozzle 2.

[0051] Example 4: (e.g.) Figure 9As shown in (iii), the two first magnetic elements 12 are located near the same end of the second magnetic element 23. For example, both first magnetic elements 12 are close to the N pole of the second magnetic element 23. The core 122 structure of the two first magnetic elements 12 in this example is the same as that of the first magnetic element 12 in Example 2, except that the number of first magnetic elements 12 is different. Taking the winding direction of the energized coils 121 of the two first magnetic elements 12 being the same, the number of turns of the energized coils 121 being the same, and the material of the core 122 being the same as that of the two first magnetic elements 12 as an example, the two first magnetic elements 12 can work simultaneously, that is, current is passed through them simultaneously. When the current flows through the energized coils 121 of the two first magnetic elements 12 in the same direction, one of the first magnetic elements 12 generates a magnetic attraction force on the second magnetic element 23, and the other first magnetic element 12 generates a repulsive force on the second magnetic element 23. The second magnetic element 23 moves towards the first magnetic element 23 that generates the magnetic attraction force. When one end of the first magnetic element 12 deflects, and a forward current is passed through the energized coil 121 of one of the first magnetic elements 12 while a reverse current is passed through the energized coil 121 of the other first magnetic element 12, the two first magnetic elements 12 generate a magnetic attraction force on the second magnetic element 23. The second magnetic element 23 deflects towards the end closer to the first magnetic element 12 with the larger current. Alternatively, both first magnetic elements 12 generate a repulsive force on the second magnetic element 23, causing the second magnetic element 23 to deflect towards the end closer to the first magnetic element 12 with the smaller current. The direction and magnitude of the current passing through the two first magnetic elements 12 can be selected according to actual needs and are not specifically limited. Of course, the two first magnetic elements 12 can also not work simultaneously. The deflection of the nozzle 2 can be achieved by selecting one of the first magnetic elements 12 to pass current, which is similar to the principle of controlling the deflection of the nozzle 2 by the first magnetic element 12 in Example 2, and will not be repeated here.

[0052] Example 5: As shown in the figure Figure 9 As shown in (iv), the two first magnetic elements 12 are respectively close to the two ends of the second magnetic element 23, that is, one of the first magnetic elements 12 is close to the S pole of the second magnetic element 23, and the other first magnetic element 12 is close to the N pole of the second magnetic element 23. The two first magnetic elements 12 can work at the same time or at different times, which can be selected according to the direction and angle of deflection required by the nozzle 2. The implementation principle is similar to that in Example 4, and will not be repeated here.

[0053] like Figure 1-2As shown in Figure 4, the nozzle 2 is installed in the mounting groove 11 along the first direction Z. The nozzle 2 has two connecting parts 22 located on opposite sides of the spray section 21. One of the connecting parts 22 has the second magnetic element 23. The mounting component 1 has a limiting shaft 13 arranged along the first direction Z. The other connecting part 22 is fitted onto the limiting shaft 13 and can deflect around the limiting shaft 13. This arrangement allows the nozzle 2 to deflect along a preset trajectory, and the deflection process is more stable. At the same time, the connecting part 22 of the nozzle 2 fitted onto the limiting shaft 13 limits the initial installation position of the nozzle 2 in the mounting groove 11 and the deflection angle range of the nozzle 2 to a certain extent. This is beneficial for the accurate installation of all nozzles 2 into the corresponding mounting groove 11 after deflection adjustment, ensuring the consistency of the installation of all nozzles 2. The connecting part 22 is provided with a through hole 26, into which the limiting shaft 13 enters. The shape of the through hole 26 is not limited, as long as it meets the deflection angle range of the nozzle 2. The through hole 26 can be a circular hole, an eccentric hole, a quincunx-shaped hole, or other irregularly shaped holes. The diameter of the narrowest area of ​​the through hole 26 is larger than the outer diameter of the limiting shaft 13. The limiting shaft 13 restricts the deflection of the nozzle 2 without interfering with it. Preferably, the limiting shaft 13 is fixedly connected to the mounting part 1. For example, the two can be fixed by welding, screwing, snapping, pinning, or bonding. Alternatively, the limiting shaft 13 and the mounting part 1 can be integrally formed during the production process.

[0054] To limit the deflection angle of the second magnetic element 23 and ensure that it deflects along a preset path to improve the accuracy of nozzle 2 position adjustment, a corresponding limiting structure can be set. Example 1: Figure 8 As shown, the mounting component 1 is provided with two limiting members 17 to limit the deflection angle of the second magnetic element 23. The two limiting members 17 are located on both sides of the second magnetic element 23. The limiting members 17 can be limiting posts or limiting plates, and the two limiting members 17 can limit the deflection angle of the second magnetic element 23 in the clockwise and counterclockwise directions. The limiting members 17 are fixedly connected to the mounting component 1. Example 2: As shown Figure 9 As shown in (ii), the bottom wall of the second mounting groove 112 is provided with an arc-shaped groove 18. The second magnetic element 23 is fixedly connected to a movable column 28. The movable column 28 deflects synchronously with the second magnetic element 23. One end of the movable column 28 is placed in the arc-shaped groove 18 and can move along the arc length direction of the arc-shaped groove 18. The center of the arc-shaped groove 18 overlaps with the center of the deflection trajectory of the movable column 28. When the second magnetic element 23 deflects under the magnetic field effect of the first magnetic element, the movable column 28 moves along the arc-shaped groove 18. Example 3: As Figure 2As shown, an elastic limiting part 19 is provided between the nozzle 2 and the mounting part 1. The elastic limiting part 19 can be a component that can be compressed or deformed elastically under force, such as a spring, to limit the deflection angle of the nozzle 2, so that the deflection angle of the nozzle 2 is controlled within the deflection range that meets the requirements for adjusting the position of the nozzle 2. One end of the elastic limiting part 19 is connected to the nozzle 2, and the other end is connected to the mounting part 1. Specifically, the elastic limiting part 19 can be connected to the groove wall of the mounting groove 11 and the side wall of the nozzle 2. The connection method and specific connection position of the elastic limiting part 19 with the nozzle 2 and the mounting part 1 are not limited. When the elastic limiting part 19 is a spring, the spring can be connected to the nozzle 2 and the mounting part 1 through a hook. There can be two or more elastic limiting parts 19, which can be distributed near the two ends of the nozzle 2. The limiting part 17 and the elastic limiting part 19 can coexist, or one of them can be selected.

[0055] like Figure 11 To limit the movement of the nozzle 2 along the first direction Z during deflection, the connecting part 22 is restricted to deflection within the mounting groove 11. The mounting component 1 is provided with a limiting member 33 that restricts the movement of the nozzle 2 along the side away from the mounting groove 11. The limiting member 33 is detachably connected to the mounting component 1. The limiting member 33 can be fixedly connected to the mounting component 1 by a fastener 34, which can be a bolt or a pin, or the limiting member can be snapped together with the mounting component 1.

[0056] like Figure 1 , 5 As shown in Figure 6, to enable control of the nozzle 2 after it is installed in place, the connecting part 22 is provided with a first contact 24, and the mounting part 1 is provided with an electrical connector 14. The electrical connector 14 is provided with a second contact 141 that can be electrically connected to the first contact 24. The first contact 24 and the second contact 141 are in arc-shaped contact. The arc-shaped contact between the first contact 24 and the second contact 141 avoids interference with the deflection of the nozzle 2, and at the same time ensures that after the nozzle 2 is deflected in place, the first contact 24 and the second contact 141 can make contact to achieve electrical connection. The electrical connector 14 can be electrically connected to the nozzle 2 control module through a cable. The electrical connector 14 can transmit the signal that the nozzle 2 is installed in place to the nozzle control module of the controller, set the spray voltage, spray frequency, and duty cycle for the actuator, and thus control the actuator to work, so that the nozzle 2 sprays droplets.

[0057] like Figure 4-5As shown, to achieve a secure connection between the nozzle 2 and the mounting component 1 after the nozzle 2 is installed in place, eliminating the need for manual fixing, the mounting groove 11 is equipped with an electromagnet 15 that can be magnetically connected to the connecting part 22 along the first direction Z. The electromagnet 15 is electrically connected to the electrical connector 14. The connecting part 22 is made of a material that can be attracted by the electromagnet 15, and the connecting part 22 can be directly magnetically connected to the electromagnet 15. The electromagnet 15 includes an iron core element and a coil element wound around the iron core element. The coil element is electrically connected to the energizing circuit. When the nozzle 2 deflects into position, the first contact 141 and the second contact 24 are electrically connected. The electrical connector 14 can transmit the signal that the nozzle 2 is installed in position to the energizing coil control module of the control device, thereby controlling the energizing coil 12 to be de-energized. At the same time, the electrical connector 14 can transmit the signal that the nozzle 2 is installed in position to the electromagnet control module, thereby controlling the energizing circuit to energize the coil element of the electromagnet 15, generating a magnetic field that attracts the connecting part 22, fixing the nozzle 2 to the mounting part 1, thus automating the installation of the nozzle 2. Alternatively, when the connecting part 22 cannot be directly attracted by the electromagnet 15, or when it is necessary to strengthen the connection between the connecting part 22 and the electromagnet 15, such as... Figure 7 As shown, the connecting part 22 is provided with a third magnetic element 25, which can be made of permanent magnet material or soft magnetic material. When the mounting groove 11 is provided with an electromagnet 15 that can be magnetically connected to the third magnetic element 25 along the first direction Z, the electromagnet 15 is electrically connected to the electrical connector 14. When the nozzle 2 is deflected into place, the first contact 141 and the second contact 24 are electrically connected. The electrical connector 14 can transmit the signal that the nozzle 2 is installed in place to the energized coil control module of the control device, thereby controlling the energized coil 12 to be de-energized. At the same time, the electrical connector 14 can transmit the signal that the nozzle 2 is installed in place to the electromagnet control module, thereby controlling the energized circuit to energize the coil element of the electromagnet 15, generating a magnetic field to attract the third magnetic element 25, and fixing the nozzle 2 to the mounting part 1.

[0058] Once the nozzle is in position, in addition to magnetically securing it to the mounting bracket as described above, it can also be secured in other ways, such as... Figure 10As shown, the position-adjustable printing device also includes a clamping member 31 located on the side of the printhead 2 away from the mounting member 1, and a drive mechanism for driving the clamping member 31 to press the printhead or release the printhead towards the side closer to the mounting groove 11. The drive mechanism is connected to the clamping member 31 and is electrically connected to the electrical connector 14. When the printhead 2 is deflected into position, the first contact 141 and the second contact 24 are electrically connected. The electrical connector 14 can transmit a signal that the printhead 2 is installed in position to the control device, thereby controlling the drive mechanism to drive the clamping member 31 towards the side closer to the mounting groove 11 to press the printhead 2, restricting the printhead 2 from moving within the mounting groove 11, and fixing the printhead 2 to the mounting member 1. This automates the fixing of the printhead 2 to the mounting member 1, reducing manual operation. When it is necessary to adjust the position of the printhead 2 in the mounting groove 11 or replace the printhead 2, the drive mechanism controls the clamping member 31 to move away from the printhead 2, i.e., release the printhead 2, allowing the printhead 2 to move within the mounting groove 11. The drive mechanism can be a cylinder, hydraulic cylinder, electromagnetic drive structure, or electric push rod, etc., capable of linear reciprocating motion. The structure of the drive mechanism is not limited here. The clamping member 31 can be a plate-shaped or strip-shaped structure. The material and shape of the clamping member 31 are not limited, as long as it can prevent the nozzle 2 from moving. The number of clamping members 31 can be one, two, or more. When there are multiple clamping members 31, they are distributed around the nozzle 2. The clamping members 31 can be used to fix the nozzle 2 to the mounting member 1 through the clamping connection part 22. Besides using a drive mechanism to move the clamping member 31 to clamp the nozzle 2, the clamping member 31 can also be used manually to clamp the nozzle 2. The drive mechanism can be connected to the mounting component 1. Preferably, to ensure that the clamping component 31 does not interfere with the installation of the nozzle 2 into the mounting slot 11, the drive mechanism includes a first drive mechanism 321 connected to the clamping component 31 and a second drive mechanism 322 connected to the first drive mechanism 31. The second drive mechanism 322 is connected to the mounting component 1. One of the first drive mechanism 321 and the second drive mechanism 322 is used to adjust the relative position of the clamping component 31 and the nozzle 2 in the horizontal direction, and the other is used to adjust the relative position of the clamping component 31 and the nozzle 2 in the vertical direction. Before installing the nozzle 2 into the mounting component 1, the first drive mechanism 321 and the second drive mechanism 322 are controlled to move the clamping component 31 away from the nozzle 2 in the vertical and horizontal directions, so as to facilitate the placement of the nozzle 2 into the mounting slot 11. After the position of the nozzle 2 is adjusted to the preset position, the first drive mechanism 321 and the second drive mechanism 322 are controlled to move the clamping component 31 closer to the nozzle 2 in the vertical and horizontal directions, and the clamping component 31 clamps the nozzle 2. The first drive mechanism 321 and the second drive mechanism 322 can be structures that can achieve linear reciprocating motion, such as cylinders, hydraulic cylinders, electromagnetic drive structures, or electric push rods.

[0059] like Figure 5As shown, this utility model also protects a mounting component 1 for cooperating with a printhead 2 in a position-adjustable printing device as described in any of the above embodiments. The printhead 2 includes an ejection portion 21 extending along a first direction and is provided with a second magnetic element 23. The mounting component 1 is a mounting component in a position-adjustable printing device as described in any of the above embodiments. The mounting component 1 is provided with a mounting groove 11 and at least one first magnetic element 12. The first magnetic element 12 includes an energized coil 121. The mounting groove 11 is configured to receive at least a portion of the printhead 2. The first magnetic element 12 is configured to magnetically cooperate with the second magnetic element 23 to drive the printhead 2 to deflect about an axis within the mounting groove 11. The axis is parallel to or intersects the first direction. The mounting component 1, cooperating with the printhead 2 provided with the second magnetic element 23, enables position adjustment of the printhead 2, improves the assembly efficiency of the printhead 2, ensures the consistency of installation of all printheads 2, and guarantees printing quality.

[0060] like Figure 6 As shown, this utility model also protects a printing module, which is at least partially installed in the mounting slot 11 of the mounting member 1 in the position-adjustable printing device described in any of the above embodiments. The mounting member 1 is provided with a first magnetic element 12. The printing module includes a printhead 2, which is the printhead in the position-adjustable printing device described in any of the above embodiments. The printhead 2 includes an ejection portion 21 extending along a first direction. The printhead 2 is provided with a second magnetic element 23, which is configured to magnetically cooperate with the first magnetic element 12 to drive the printhead 2 to deflect around an axis in the mounting slot 11. The axis is parallel to or intersects the first direction. When the printing module cooperates with the mounting member 1 provided with the first magnetic element 12, the position of the printhead 2 can be adjusted, improving the assembly efficiency of the printhead 2, ensuring the consistency of the installation of all printheads 2, and ensuring printing quality.

[0061] This utility model also protects a printing device, including the position-adjustable printing device as described in any of the above embodiments. Since the printing device includes the position-adjustable printing device, it has the same technical effect as the position-adjustable printing device.

[0062] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0063] Although embodiments of the present invention have been shown and described above, they should not be construed as limiting the scope of the claims. The present invention is not limited to the above embodiments, and variations in its specific structure are permitted. All changes made within the scope of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A printing device with an adjustable printhead position, characterized in that, include: The mounting component is provided with a mounting groove and at least one first magnetic element, the first magnetic element including an energized coil; A nozzle, at least partially mounted in the mounting groove, the nozzle including a spray portion extending along a first direction, the nozzle having a second magnetic element, the first magnetic element and the second magnetic element being magnetically engaged to drive the nozzle to deflect within the mounting groove about an axis, the axis being parallel to or intersecting the first direction.

2. The printing device with adjustable printhead position as described in claim 1, characterized in that, The nozzle includes a connecting portion that protrudes outward relative to the spray portion, the second magnetic element is connected to the connecting portion, and the mounting groove includes a first mounting groove for mounting the spray portion and a second mounting groove for receiving the connecting portion, the first mounting groove penetrating the mounting member along a first direction.

3. The printing device with adjustable printhead position as described in claim 2, characterized in that, There are two first magnetic elements arranged at intervals, and the second magnetic element is located between the two first magnetic elements.

4. The printing device with adjustable printhead position as described in claim 3, characterized in that, The first magnetic element further includes an iron core, and the energized coil is wound around the iron core. The iron core includes a first magnetic segment and a second magnetic segment located on opposite sides of the second magnetic element, and an intermediate magnetic segment connecting the first magnetic segment and the second magnetic segment on the same side. The first magnetic segment, the second magnetic segment, and the intermediate magnetic segment enclose a groove, and the two ends of the second magnetic element are respectively placed in the grooves of the two iron cores.

5. The printing device with adjustable printhead position as described in claim 4, characterized in that, The two first magnetic elements are arranged in the second direction. The bottom wall of the second mounting groove is provided with a sliding groove extending along a third direction, which intersects with the second direction. The second magnetic element is connected to a sliding column, one end of which is located in the sliding groove and can move along the sliding groove. And / or, the second magnetic element is a permanent magnet.

6. The printing device with adjustable printhead position as described in claim 1, characterized in that, The nozzle is mounted in the mounting groove along the first direction. The nozzle has two connecting parts located on opposite sides of the spray section. One of the connecting parts is provided with the second magnetic element. The mounting component is provided with a limiting shaft arranged along the first direction. The other connecting part is fitted onto the limiting shaft and can deflect around the limiting shaft.

7. The printing device with adjustable printhead position as described in claim 6, characterized in that, The mounting component is provided with two limiting members that restrict the deflection angle of the second magnetic element, and the two limiting members are located on both sides of the second magnetic element; And / or, an elastic limiting part is provided between the nozzle and the mounting component.

8. The printing device with adjustable printhead position as described in claim 1, characterized in that, The mounting component is provided with a limiting element that restricts the movement of the nozzle along the side away from the mounting groove, and the limiting element is detachably connected to the mounting component.

9. A printing device with adjustable printhead position as described in claim 2, characterized in that, The connecting part is provided with a first contact, the mounting part is provided with an electrical connector, the electrical connector is provided with a second contact that can be electrically connected to the first contact, and the first contact and the second contact are in arc-shaped contact.

10. A printing device with adjustable printhead position as described in claim 9, characterized in that, The mounting slot is provided with an electromagnet that can be magnetically connected to the connecting part along a first direction, and the electromagnet is electrically connected to the electrical connector; Alternatively, the connecting part is provided with a third magnetic element, and the mounting groove is provided with an electromagnet that can be magnetically connected to the third magnetic element along a first direction, and the electromagnet is electrically connected to the electrical connector.

11. The printing device with adjustable printhead position as described in claim 9, characterized in that, It also includes a clamping member located on the side of the nozzle away from the mounting member, and a drive mechanism for driving the clamping member to press the nozzle towards the side near the mounting groove or to release the nozzle, the drive mechanism being electrically connected to the electrical connector.

12. A mounting element for engaging with a printhead in a position-adjustable printing apparatus as claimed in any one of claims 1-10, the printhead including an ejection portion extending in a first direction, the printhead being provided with a second magnetic element, characterized in that, include: The mounting component is a mounting component in a printhead position adjustable printing device as described in any one of claims 1-11, the mounting component having a mounting groove and at least one first magnetic element, the first magnetic element including an energized coil, the mounting groove being configured to receive at least a portion of the printhead, and the first magnetic element being configured to magnetically engage with a second magnetic element to drive the printhead to deflect within the mounting groove about an axis, the axis being parallel to or intersecting a first direction.

13. A printing module, at least partially mounted in a mounting slot of a mounting member in a printhead position adjustable printing device as described in any one of claims 1-11, said mounting member being provided with a first magnetic element, characterized in that, include: The printhead is a printhead in a printhead position adjustable printing device as described in any one of claims 1-10, the printhead including a jetting portion extending along a first direction, the printhead being provided with a second magnetic element, the second magnetic element being configured to magnetically engage with the first magnetic element to drive the printhead to deflect about an axis within the mounting groove, the axis being parallel to or intersecting the first direction.

14. A printing device, characterized in that, Includes the printhead position adjustable printing device as described in any one of claims 1-11.

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