Nozzle fixing device

Abstract

The application provides a nozzle fixing device, comprising a bottom plate, a plurality of nozzles, a plurality of first connecting members and a plurality of adjusting columns, the bottom plate is provided with a plurality of threaded holes distributed at intervals along a first direction, the plurality of first connecting members are respectively arranged correspondingly with the plurality of nozzles, each first connecting member comprises a first fixing block and a first elastic rib connected with each other, the first elastic rib is connected with the bottom plate, the first fixing block is connected with the corresponding nozzle, and each adjusting column comprises a threaded segment and a conical segment connected with each other. The threaded segments of the plurality of adjusting columns are respectively inserted into the plurality of threaded holes and are in threaded connection, the conical segment gradually increases along a second direction, and in the first direction, the circumferential side wall of the conical segment abuts against the corresponding first fixing block. The above technical scheme can adjust the distance between the nozzles in the first direction, effectively eliminate the error existing in mechanical processing, and when the nozzles are adjusted to the preset position, the adjusting column is stopped from rotating, the adjustment is completed, and the distance between the nozzles can effectively reach the required precision.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of printing equipment, and more particularly to a nozzle fixing device. BACKGROUND

[0002] An inkjet printer is a printing device that forms a desired image or text by ejecting ink droplets from a nozzle and allowing the ink droplets to fall on a corresponding position of a printing medium. Since the length of the nozzle used at present is relatively short, a plurality of nozzles are needed to build a printing width of different widths. When a plurality of nozzles are arranged in a straight line and fixed on a bottom plate, the spacing between adjacent nozzles (hereinafter referred to as nozzle spacing) directly affects the printing accuracy.

[0003] At present, most of the nozzle spacing is ensured by the machining precision and positioning pins on the bottom plate. However, machining inevitably has errors, which makes it difficult to achieve the required precision of nozzle spacing. In order to compensate for the machining precision, some inkjet printers are also equipped with an adjusting mechanism on the bottom plate to adjust the nozzle spacing through the adjusting mechanism. However, the actual operation sequence is not considered. After the nozzle is preliminarily positioned on the bottom plate, the nozzle spacing is adjusted through the adjusting mechanism, and then the nozzle is fixed by screwing the screw. However, the friction generated by the screw and the bottom plate during the screwing process can easily cause the position of the nozzle to deviate, which also makes it difficult to achieve the required precision of nozzle spacing. SUMMARY

[0004] The purpose of the embodiment of the present application is to provide a nozzle fixing device to solve the technical problem that the nozzle spacing is difficult to achieve the required precision due to the inevitable errors in machining in the prior art.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present application is to provide a nozzle fixing device, comprising:

[0006] a bottom plate provided with a plurality of threaded holes spaced apart along a first direction;

[0007] a plurality of nozzles arranged in sequence along the first direction;

[0008] a plurality of first connecting members respectively corresponding to the plurality of nozzles; each first connecting member comprises a first fixing block and a first elastic rib connected to each other, the first elastic rib is connected to the bottom plate, and the first fixing block is connected to the corresponding nozzle; and

[0009] A plurality of adjusting columns are respectively arranged corresponding to the plurality of first connecting members; the axial direction of each adjusting column is arranged along a second direction perpendicular to the first direction, and each adjusting column comprises a threaded segment and a tapered segment connected to each other, the threaded segments of the plurality of adjusting columns are respectively inserted into the plurality of threaded holes and are threadedly connected, and the tapered segment gradually increases along the second direction, and the circumferential sidewall of the tapered segment abuts against the corresponding first fixed block in the first direction.

[0010] Optionally, a plurality of first movable grooves are arranged on the bottom plate, the plurality of first connecting members are respectively arranged in the plurality of first movable grooves, and the first elastic rib is connected to the inner sidewall of the first movable groove; in the first direction, the first gap is formed between the opposite sidewalls of the first fixed block and the inner sidewall of the first movable groove.

[0011] Optionally, in a third direction perpendicular to the first direction and the second direction, one end of the first fixed block is connected to the first elastic rib, and a first gap is formed between the other end of the first fixed block and the inner sidewall of the first movable groove.

[0012] Optionally, the nozzle fixing device further comprises a plurality of second connecting members, the plurality of second connecting members are respectively arranged corresponding to the plurality of nozzles, and are respectively arranged in the first direction and are spaced apart from the plurality of first connecting members, each second connecting member comprises a second fixed block and a second elastic rib connected to each other, the second elastic rib is connected to the bottom plate, and the second fixed block is connected to the corresponding nozzle.

[0013] Optionally, a plurality of second movable grooves are arranged on the bottom plate, the plurality of second connecting members are respectively arranged in the plurality of second movable grooves, and the second elastic rib is connected to the inner sidewall of the second movable groove; in the first direction, the second gap is formed between the opposite sidewalls of the second fixed block and the inner sidewall of the second movable groove.

[0014] Optionally, in a third direction perpendicular to the first direction and the second direction, one end of the second fixed block is connected to the second elastic rib, and a second gap is formed between the other end of the second fixed block and the inner sidewall of the second movable groove.

[0015] Optionally, a plurality of first positioning pins are arranged on the bottom plate, a first connecting lug is arranged on the nozzle, the first connecting lug of each nozzle is arranged corresponding to the first positioning pin, the first connecting lug is provided with a first positioning groove for inserting the corresponding first positioning pin, and in the first direction, the first gap is formed between the opposite sidewalls of the first positioning pin and the inner sidewall of the corresponding first positioning groove.

[0016] Optionally, a plurality of second positioning pins are arranged on the bottom plate, and a second connecting lug is arranged on each of the spray heads, the second connecting lug of each of the spray heads is arranged in the first direction and spaced apart from the first connecting lug, the second connecting lug of each of the plurality of spray heads is arranged in correspondence with a second positioning pin, and the second connecting lug is provided with a second positioning slot for inserting the corresponding second positioning pin, and in the first direction, the opposite side walls of the second positioning pin and the inner side walls of the corresponding second positioning slot have a second gap therebetween.

[0017] Optionally, in a third direction perpendicular to the first direction and the second direction, the first positioning pin abuts the inner side wall of the corresponding first positioning slot, and the second positioning pin abuts the inner side wall of the corresponding second positioning slot.

[0018] Optionally, the bottom plate has a first surface and a second surface arranged opposite to each other in the second direction, the threaded hole penetrates through the first surface and the second surface, the end of the threaded segment exposed to the first surface is provided with a first square hole, and the end of the tapered segment exposed to the second surface is provided with a second square hole.

[0019] The spray head fixing device provided by the application has the following beneficial effects: compared with the prior art, when it is necessary to fine-tune the distance between the spray heads in the first direction after the spray heads are fixed to the bottom plate through the first connecting member, the adjusting column is rotated in the first rotation direction, the adjusting column moves in the direction opposite to the second direction, the tapered segment presses the first fixed block in the first direction, the first elastic rib is elastically deformed in the first direction, and the first fixed block drives the spray head to move in the first direction, the adjusting column is rotated in the direction opposite to the first rotation direction, the adjusting column moves in the second direction, the pressing force of the tapered segment on the first fixed block is gradually reduced, the first elastic rib gradually recovers, and the first fixed block drives the spray head to move in the direction opposite to the first direction, thereby adjusting the position of the spray head in the first direction, i.e., adjusting the distance between the spray heads in the first direction, effectively eliminating the error caused by mechanical processing, and when the spray head is adjusted to the preset position, the rotation of the adjusting column is stopped, i.e., the adjustment is completed, and it is not necessary to further fix the position of the spray head, thereby effectively ensuring that the distance between the spray heads reaches the required accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative labor.

[0021] Figure 1A perspective view of a spray head fixing device according to an embodiment of the present application is provided;

[0022] Figure 2 An exploded view of a spray head fixing device according to an embodiment of the present application is provided;

[0023] Figure 3 A structure view of an adjusting column according to an embodiment of the present application is provided;

[0024] Figure 4 A top view of a spray head fixing device according to an embodiment of the present application is provided;

[0025] Figure 5 A structure view of a spray head fixing device according to an embodiment of the present application is provided; Figure 4 An enlarged view of A in FIG. 1 is provided;

[0026] Figure 6 An enlarged view of B in FIG. 1 is provided; Figure 4

[0027] A sectional view along A-A line in FIG. 1 is provided; Figure 7 Figure 4 An enlarged view of C in FIG. 1 is provided;

[0028] Figure 8 Figure 7 A bottom view of a spray head fixing device according to an embodiment of the present application is provided;

[0029] Figure 9 An enlarged view of D in FIG. 1 is provided;

[0030] Figure 10 An enlarged view of E in FIG. 1 is provided. Figure 9

[0031] Figure 11 Figure 9 In the drawings, reference numerals:

[0032]

[0033] ​​​​​10, bottom plate; 11, first surface; 12, second surface; 13, threaded hole; 14, limiting groove; 15, first positioning pin; 16, second positioning pin; 17, first movable groove; 18, accommodating groove; 19, second movable groove; 20, nozzle; 21, first connecting lug; 211, first positioning groove; 22, second connecting lug; 221, second positioning groove; 23, first connecting end; 231, first connecting hole; 24, second connecting end; 241, second connecting hole; 30, first connecting piece; 31, first fixed block; 311, arc-shaped concave surface; 32, first elastic rib; 33, first gap; 34, first gap; 40, second connecting piece; 41, second fixed block; 42, second elastic rib; 43, second gap; 44, second gap; 50, adjusting column; 51, threaded section; 511, first square hole; 52, tapered section; 521, second square hole; 60, rotary driver; X, first direction; Z, second direction; Y, third direction. DETAILED DESCRIPTION

[0034] In order to make the technical problems to be solved by the present application, technical solutions and beneficial effects clearer, the present application will be further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, and not intended to limit the present application.

[0035] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0036] It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0037] In addition, the terms "first", "second", "third", etc. are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0038] Please refer to Figures 1 to 11The spray head fixing device provided by the embodiments of the present application will be described below.

[0039] Please refer to Figure 1 , Figure 2 , Figure 7 and Figure 8 , the spray head fixing device comprises a bottom plate 10, a plurality of spray heads 20, a plurality of first connecting members 30 and a plurality of adjusting columns 50. The bottom plate 10 is provided with a plurality of threaded holes 13 which are spaced apart along a first direction X. The plurality of spray heads 20 are arranged in sequence along the first direction X. The plurality of first connecting members 30 are arranged correspondingly with the plurality of spray heads 20, each first connecting member 30 comprises a first fixed block 31 and a first elastic rib 32 which are connected with each other, the first elastic rib 32 is connected with the bottom plate 10, and the first fixed block 31 is connected with the corresponding spray head 20. The plurality of adjusting columns 50 are arranged correspondingly with the plurality of first connecting members 30, the axial direction of each adjusting column 50 is arranged along a second direction Z which is perpendicular to the first direction X, and each adjusting column 50 comprises a threaded segment 51 and a tapered segment 52 which are connected with each other. The threaded segments 51 of the plurality of adjusting columns 50 are inserted into the plurality of threaded holes 13 respectively, and form threaded connection cooperation. The tapered segment 52 gradually increases along the second direction Z, and the circumferential sidewall of the tapered segment 52 abuts against the corresponding first fixed block 31 in the first direction X.

[0040] Specifically, since the axial direction of the adjusting column 50 is arranged along the second direction Z which is perpendicular to the first direction X, and the threaded segment 51 of the adjusting column 50 forms threaded connection cooperation with the threaded hole 13, the tapered segment 52 gradually increases along the second direction Z, so that the adjusting column 50 is rotated along a preset direction, and when the adjusting column 50 moves in a direction opposite to the second direction Z, the tapered segment 52 extrudes the first fixed block 31 along the first direction X; since the first fixed block 31 is connected with the first elastic rib 32, the first elastic rib 32 is connected with the bottom plate 10, and the spray head 20 is connected with the first fixed block 31, the first elastic rib 32 can be elastically deformed in the first direction X, so that when the tapered segment 52 extrudes the first fixed block 31 along the first direction X, the first elastic rib 32 is elastically bent in the first direction X to make the first fixed block 31 displace in the first direction X, thereby driving the spray head 20 to displace in the first direction X; when the adjusting column 50 is reversely rotated, and the adjusting column 50 moves along the second direction Z, the extrusion force of the tapered segment 52 on the first fixed block 31 along the first direction X is gradually reduced, and the first elastic rib 32 gradually recovers to drive the first fixed block 31 to displace in a direction opposite to the first direction X, thereby driving the spray head 20 to displace in a direction opposite to the first direction X. Thus, the position of the spray head 20 in the first direction X is adjusted, that is, the adjustment of the distance between the spray heads in the first direction X is realized.

[0041] It can be understood that, since the tapered segment 52 gradually increases along the second direction Z, the circumferential sidewall of the tapered segment 52 is arranged obliquely in the second direction Z, as shown in Figure 3Therefore, when the adjusting column 50 moves in the second direction Z, the extrusion force of the circumferential side wall of the tapered section 52 on the first fixed block 31 in the first direction X changes, so that the first fixed block 31 can be displaced in the first direction X.

[0042] The nozzle fixing device provided by the application can effectively eliminate the error existing in mechanical processing, and when the nozzle 20 is adjusted to the preset position, the rotation of the adjusting column 50 is stopped, that is, the adjustment is completed, and it is not necessary to further fix the position of the nozzle 20, so that the nozzle spacing can effectively reach the required precision.

[0043] In the traditional adjusting mechanism, the operation sequence of adjusting the nozzle spacing and fixing the nozzles 20 on the base plate 10 is incompatible. Specifically, in the traditional adjusting mechanism, after the nozzles 20 are preliminarily positioned on the base plate 10, the nozzle spacing is adjusted by the adjusting mechanism, and then the screws connecting the nozzles 20 and the base plate 10 are tightened to fix the nozzles 20. However, during the tightening process, the friction between the screws and the base plate 10 can cause the nozzles 20 to deviate from their positions, which can also cause the nozzle spacing to fail to reach the required accuracy. In the present application, the operation sequence of adjusting the nozzle spacing and fixing the nozzles 20 on the base plate 10 is compatible. Specifically, the nozzle fixing device of the present application first connects the nozzles 20 and the base plate 10 through the first connecting members 30, and then adjusts the nozzle spacing by rotating the adjusting columns 50. That is, after adjusting the nozzle spacing, the rotation of the adjusting columns 50 is stopped to complete the adjustment, which effectively eliminates the error caused by the movement of the nozzles 20 after the adjustment and fixation. Thus, the nozzle spacing can reach the required accuracy. In addition, since the nozzles 20 are first connected to the base plate 10 through the first connecting members 30, and then the nozzle spacing is adjusted according to the requirements, online debugging can be realized. Specifically, when the nozzle fixing device is placed on a two-dimensional measuring instrument for measurement, if the nozzle spacing has an error, the adjusting column 50 corresponding to the nozzle 20 can be directly rotated to adjust the spacing between the nozzle 20 and the adjacent nozzle 20, which realizes measurement and debugging simultaneously and is beneficial to improving the adjusting efficiency.

[0044] It should be noted that the nozzle spacing refers to the spacing between adjacent nozzles 20, and adjacent nozzles 20 refer to two adjacent nozzles 20.

[0045] In some embodiments of the present application, please refer to Figure 2 , Figure 7 and Figure 8 The base plate 10 has a first surface 11 and a second surface 12, the first surface 11 and the second surface 12 are oppositely arranged along the second direction Z, and the threaded holes 13 penetrate the first surface 11 and the second surface 12. The base plate 10 is provided with a plurality of limiting grooves 14, such as Figure 2The limiting grooves 14 are arranged in sequence along the first direction X, and portions of the plurality of nozzles 20 are respectively positioned in the limiting grooves 14. Specifically, the shape of the limiting grooves 14 is substantially matched with the shape of the nozzles 20, and the limiting grooves 14 reserve a movement space for the nozzles 20 in the first direction X, so that the nozzles 20 can be displaced in the first direction X. By opening the limiting grooves 14 on the bottom plate 10 and positioning portions of the nozzles 20 in the limiting grooves 14, the stability of positioning the nozzles 20 is effectively improved, and the nozzles 20 are effectively prevented from shaking greatly in the ink jetting process or the process of adjusting the nozzle spacing, which affects the printing precision or the precision of the nozzle spacing. In addition, by positioning portions of the nozzles 20 in the limiting grooves 14, the overall structure is more compact, which is beneficial to reducing the volume of the nozzle fixing device as a whole.

[0046] Further, the nozzles 20 are flush with the first surface 11, and the nozzles 20 protrude from the second surface 12.

[0047] In some embodiments of the present application, please refer to Figure 9 and Figure 10 The bottom plate 10 is provided with a plurality of first positioning pins 15, the first positioning pins 15 are arranged on the first surface 11 and extend in the direction opposite to the second direction Z, the nozzles 20 are provided with first connecting ears 21, the first connecting ears 21 of the plurality of nozzles 20 are respectively arranged correspondingly to the plurality of first positioning pins 15, the first connecting ears 21 are provided with first positioning grooves 211 for inserting the corresponding first positioning pins 15, and in the first direction X, the opposite two side walls of the first positioning pins 15 and the inner side walls of the corresponding first positioning grooves 211 both have first gaps. In the process of assembling the nozzles 20 to the bottom plate 10, first, portions of the nozzles 20 are inserted into the corresponding limiting grooves 14, and the first positioning pins 15 are inserted into the corresponding first positioning grooves 211, so as to realize the primary positioning of the nozzles 20 and improve the assembly precision.

[0048] Further, in the third direction Y perpendicular to the first direction X and the second direction Z, the first positioning pins 15 abut against the inner side walls of the first positioning grooves 211, so as to position the nozzles 20 in the third direction Y and effectively ensure the position precision of the nozzles 20 in the third direction Y.

[0049] Optionally, the radial section of the first positioning pins 15 is flat, the first positioning grooves 211 are rectangular, and the length of the first positioning grooves 211 extends along the third direction Y. In the third direction Y, the first positioning pins 15 are tangent to the inner side walls of the first positioning grooves 211.

[0050] In some embodiments of the present application, please continue to refer to Figure 9 andFigure 10 The bottom plate 10 is provided with a plurality of second positioning pins 16, the second positioning pins 16 are arranged on the first surface 11 and extend in the direction opposite to the second direction Z, the plurality of second positioning pins 16 are respectively arranged opposite to the plurality of first positioning pins 15 in the first direction X, the second connecting ears 22 are arranged on the nozzle 20, the second connecting ears 22 of each nozzle 20 are arranged opposite to the first connecting ears 21 in the first direction X, the second connecting ears 22 of the plurality of nozzles 20 are respectively arranged corresponding to the plurality of second positioning pins 16, the second connecting ears 22 are provided with second positioning grooves 221 for inserting the corresponding second positioning pins 16, and in the first direction X, the opposite two side walls of the second positioning pins 16 and the inner side walls of the corresponding second positioning grooves 221 both have second gaps. In the process of assembling the nozzle 20 to the bottom plate 10, the second positioning pins 16 cooperate with the first positioning pins 15 to preliminarily position the nozzle 20, effectively prevent the nozzle 20 from rotating, and facilitate assembly. The second gaps provide a movement space for the second positioning pins 16 in the first direction X.

[0051] Further, in the third direction Y, the second positioning pins 16 abut against the inner side walls of the second positioning grooves 221 to position the nozzle 20 in the third direction Y, effectively improving the position accuracy of the nozzle 20 in the third direction Y.

[0052] Optionally, the radial section of the second positioning pin 16 is circular, and the second positioning groove 221 is square, and in the third direction Y, the second positioning pin 16 is tangent to the inner side walls of the second positioning groove 221.

[0053] It should be noted that in the first direction X, the movement space of the first positioning pin 15 in the first positioning groove 211 is greater than the movement space of the second positioning pin 16 in the second positioning groove 221, so as to compensate for the machining error, so that when the first positioning pin 15 is inserted into the first positioning groove 211, the second positioning pin 16 is inserted into the second positioning groove 221, and the second positioning pin 16 is at the center position of the first positioning groove 211, in the first direction X, the opposite two side walls of the first positioning pin 15 and the inner side walls of the corresponding first positioning groove 211 both have first gaps, and the opposite two side walls of the second positioning pin 16 and the inner side walls of the corresponding second positioning groove 221 both have second gaps.

[0054] In some embodiments of the present application, please refer to Figure 4 and Figure 5The bottom plate 10 is provided with a plurality of first movable grooves 17, a plurality of first connecting pieces 30 are respectively located in the plurality of first movable grooves 17, and the first elastic rib 32 is connected with the inner side wall of the first movable groove 17. In the first direction X, the first gap 33 is formed between the opposite two side walls of the first fixed block 31 and the inner side wall of the first movable groove 17. By opening a plurality of first movable grooves 17 on the bottom plate 10, and then locating a plurality of first connecting pieces 30 in a plurality of first movable grooves 17, the structure is compact, and the first connecting piece 30 occupies extra space. The first gap 33 provides a moving space for the first fixed block 31 in the first direction X.

[0055] Further, in the third direction Y, one end of the first fixed block 31 is connected with the first elastic rib 32, and the other end of the first fixed block 31 is connected with the inner side wall of the first movable groove 17. The first gap 34 is formed between the first elastic rib 32 and the inner side wall of the first movable groove 17, so that the first elastic rib 32 is more easily elastically deformed in the first direction X.

[0056] In some embodiments of the present application, in the first direction X, the width of the first elastic rib 32 is much smaller than the width of the first fixed block 31, so that the first elastic rib 32 is more easily elastically deformed in the first direction X than the first fixed block 31. In the second direction Z, the thickness of the first elastic rib 32 is equal to the thickness of the first fixed block 31, so that the first elastic rib 32 is not easily elastically deformed in the second direction Z. In the third direction Y, the length of the first elastic rib 32 is much smaller than the length of the first fixed block 31, which facilitates controlling the accuracy of the fine adjustment of the nozzle 20 in the first direction X.

[0057] In some embodiments of the present application, the bottom plate 10, the first fixed block 31 and the first elastic rib 32 are integrally formed, the manufacturing process is simple, and the cost is reduced.

[0058] In some embodiments of the present application, the bottom plate 10 is provided with a plurality of accommodation grooves 18, in the first direction X, the plurality of accommodation grooves 18 are respectively communicated with the plurality of first movable grooves 17, in the second direction Z, the plurality of accommodation grooves 18 are respectively communicated with the plurality of threaded holes 13 and penetrate the second surface 12, and the tapered section 52 of the plurality of adjusting columns 50 is respectively located in the plurality of accommodation grooves 18, and part of the tapered section 52 extends into the corresponding first movable groove 17 in the first direction X to abut against the corresponding first fixed block.

[0059] In some embodiments of the present application, please refer to Figure 5The first fixed block 31 is provided with an arc-shaped concave surface 311 on the side wall of the tapered section 52, which is matched with the circumferential side wall of the tapered section 52. It can be understood that the arc-shaped concave surface 311 is matched with the shape of the circumferential side wall of the tapered section 52, and the contact surface between the tapered section 52 and the first fixed block 31 is effectively increased by matching the arc-shaped concave surface 311 with the circumferential side wall of the tapered section 52, so as to improve the stability of the tapered section 52 acting on the first fixed block 31.

[0060] In some embodiments of the present application, referring to Figure 1 and Figure 2 The nozzle fixing device further comprises a plurality of second connecting members 40, which are respectively arranged corresponding to the plurality of nozzles 20 and are respectively arranged in the first direction X and spaced apart from the plurality of first connecting members 30. Each second connecting member 40 comprises a second fixed block 41 and a second elastic rib 42 connected with each other, as Figure 4 and Figure 6 The second elastic rib 42 is connected with the bottom plate 10, and the second fixed block 41 is connected with the corresponding nozzle 20. By connecting the nozzle 20 through the cooperation of the second connecting member 40 and the first connecting member 30, it is beneficial to strengthen the connection between the nozzle 20 and the bottom plate 10. By connecting the second elastic rib 42 of the second connecting member 40 with the bottom plate 10 and connecting the plurality of nozzles 20 with the second fixed block 41 of the plurality of second connecting members 40, the second elastic rib 42 can be elastically deformed in the first direction X when subjected to a predetermined external force in the first direction X, so that the nozzle 20 can be displaced in the first direction X.

[0061] In some embodiments of the present application, referring to Figure 6 The bottom plate 10 is provided with a plurality of second movable grooves 19, and the plurality of second connecting members 40 are respectively located in the plurality of second movable grooves 19. The second elastic rib 42 is connected with the inner side wall of the second movable groove 19. In the first direction X, the second fixed block 41 has a second gap 43 between the opposite two side walls and the inner side wall of the second movable groove 19. By opening a plurality of second movable grooves 19 on the bottom plate 10 and then locating a plurality of second connecting members 40 in the plurality of second movable grooves 19, the structure is compact, and the second connecting member 40 is effectively prevented from occupying additional space. The second gap 43 provides a moving space for the second fixed block 41 in the first direction X.

[0062] Specifically, in the third direction Y, one end of the second fixed block 41 is connected with the second elastic rib 42, and the other end of the second fixed block 41 has a second gap 44 with the inner side wall of the second movable groove 19, so that the second elastic rib 42 is more easily elastically deformed in the first direction X.

[0063] In some embodiments of the present application, in the first direction X, the width of the second elastic rib 42 is much smaller than the width of the second fixed block 41, so that the second elastic rib 42 is more likely to be elastically deformed in the first direction X than the second fixed block 41. In the second direction Z, the thickness of the second elastic rib 42 is equal to the thickness of the second fixed block 41, so that the second elastic rib 42 is not likely to be elastically deformed in the second direction Z. In the third direction Y, the length of the second elastic rib 42 is smaller than the length of the second fixed block 41, facilitating the control of the accuracy of the fine adjustment of the nozzle 20 in the first direction X. In the third direction Y, the length of the second fixed block 41 is much smaller than the length of the first fixed block 31.

[0064] In some embodiments of the present application, the bottom plate 10, the second fixed block 41 and the second elastic rib 42 are integrally formed, which is simple in manufacturing process and is conducive to reducing the cost.

[0065] In some embodiments of the present application, referring to Figures 9 to 11 , the opposite ends of the nozzle 20 are respectively provided with a first connecting end 23 and a second connecting end 24, the first connecting ends 23 of the plurality of nozzles 20 are respectively connected with the first fixed blocks 31 of the plurality of first connecting members 30, and the second connecting ends 24 of the plurality of nozzles 20 are respectively connected with the second fixed blocks 41 of the plurality of second connecting members 40. Specifically, the first connecting end 23 is provided with a first connecting hole 231, the first fixed block 31 is provided with a first fixed hole, in the second direction Z, the first fixed hole and the first connecting hole 231 correspondingly communicate, and the first fixed hole and the first connecting hole 231 are coaxially arranged, and the fastener is passed through the first connecting hole 231 and the first fixed hole to connect the first connecting end 23 and the first fixed block 31. The second connecting end 24 is provided with a second connecting hole 241, and the second fixed block 41 is provided with a second fixed hole, in the second direction Z, the second fixed hole and the second connecting hole 241 correspondingly communicate, and the second fixed hole and the second connecting hole 241 are coaxially arranged, and the fastener is passed through the second connecting hole 241 and the second fixed hole to connect the second connecting end 24 and the second fixed block 41.

[0066] Optionally, the fastener is a screw or a bolt, etc.

[0067] Exemplarily, the fastener is a screw, when the nozzle 20 needs to be assembled to the bottom plate 10, first insert part of the nozzle 20 into the corresponding limiting groove 14, insert the first positioning pin 15 into the corresponding first positioning slot 211, and insert the second positioning pin 16 into the corresponding second positioning slot 221, to realize the preliminary positioning of the nozzle 20, then insert the screw into the first connecting hole 231 and the first fixed hole, and tighten the screw, to connect the first connecting end 23 and the first fixed block 31, insert the screw into the second connecting hole 241 and the second fixed hole, and tighten the screw, to connect the second connecting end 24 and the second fixed block 41, that is, the assembly is completed.

[0068] The minimum diameter of the tapered section 52 is greater than or equal to the diameter of the threaded section 51, so that the adjusting column 50 is inserted into the threaded hole 13 from the side of the second surface 12.

[0069] In some embodiments of the present application, referring to Figure 7 and Figure 8 , the end of the threaded section 51 exposed to the first surface 11 is provided with a first square hole 511, and the end of the tapered section 52 exposed to the second surface 12 is provided with a second square hole 521, both of which are used for inserting a screwdriver or wrench. Understandably, the screwdriver or wrench can be inserted into the first square hole 511 from the side of the first surface 11 to rotate the adjusting column 50, and the screwdriver or wrench can also be inserted into the second square hole 521 from the side of the second surface 12 to rotate the adjusting column 50, which is convenient to operate.

[0070] Since the conventional adjusting mechanism can only be adjusted manually, in the case of printing a wide width, if the number of nozzles 20 to be adjusted is large, the adjustment time is long and the efficiency is low. The present application can be adjusted by rotating the adjusting column 50, so that both manual adjustment and automatic adjustment can be used. In manual adjustment, the operator holds the screwdriver or wrench to rotate the adjusting column 50. In automatic adjustment, the nozzle fixing device further comprises a rotary drive 60, which is assembled and connected with the screwdriver or wrench, and the screwdriver or wrench is driven to rotate by the rotary drive 60, thereby rotating the adjusting column 50. Understandably, the user can flexibly choose manual adjustment or automatic adjustment according to the number of nozzles 20 to be adjusted. For example, when the number of nozzles 20 to be adjusted is small, manual adjustment can be used, which is simple and convenient. When the number of nozzles 20 to be adjusted is large, automatic adjustment can be used, which is beneficial to save a lot of manual adjustment time and has high adjustment efficiency.

[0071] Optionally, the rotary drive 60 is a motor or a rotary cylinder.

[0072] The above is only a preferred embodiment of the present application and is not intended to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A showerhead fixation device, characterized by, The utility model relates to a printing head structure, comprising: a base plate provided with a plurality of threaded holes spaced apart along a first direction; a plurality of nozzles arranged in sequence along the first direction, the plurality of nozzles being capable of building different printing widths; a plurality of first connecting members respectively corresponding to the plurality of nozzles, each first connecting member comprising a first fixed block and a first elastic rib connected to each other, the first elastic rib being connected to the base plate, and the first fixed block being connected to the corresponding nozzle, the first elastic rib being capable of elastically deforming in the first direction; a plurality of second connecting members respectively corresponding to the plurality of nozzles and being spaced apart from the plurality of first connecting members along the first direction, the first connecting members and the second connecting members being arranged on both sides of the nozzles along the first direction, each second connecting member comprising a second fixed block and a second elastic rib connected to each other, the second elastic rib being connected to the base plate, and the second fixed block being connected to the corresponding nozzle, the second elastic rib being capable of elastically deforming in the first direction; and a plurality of adjusting columns respectively corresponding to the plurality of first connecting members, the axial direction of each adjusting column being arranged along a second direction perpendicular to the first direction, and each adjusting column comprising a threaded segment and a tapered segment connected to each other, the threaded segments of the plurality of adjusting columns being respectively inserted into the plurality of threaded holes and being threadedly connected, and the tapered segment gradually increasing along the second direction, and the circumferential side wall of the tapered segment abutting against the corresponding first fixed block in the first direction. The base plate is provided with a plurality of first movable grooves, the plurality of first connecting members are respectively located in the plurality of first movable grooves, and the first elastic rib is connected to the inner side wall of the first movable groove; in the first direction, first gaps are respectively formed between the opposite side walls of the first fixed block and the inner side walls of the first movable groove.

2. The showerhead fixation device of claim 1, wherein: In a third direction perpendicular to the first direction and the second direction, one end of the first fixed block is connected to the first elastic rib, and a first gap is formed between the other end of the first fixed block and the inner side wall of the first movable groove.

3. The showerhead fixation device of claim 2, wherein: The base plate is provided with a plurality of second movable grooves, the plurality of second connecting members are respectively located in the plurality of second movable grooves, and the second elastic rib is connected to the inner side wall of the second movable groove; in the first direction, second gaps are respectively formed between the opposite side walls of the second fixed block and the inner side walls of the second movable groove.

4. The showerhead fixation device of claim 1, wherein: In a third direction perpendicular to the first direction and the second direction, one end of the second fixed block is connected to the second elastic rib, and a second gap is formed between the other end of the second fixed block and the inner side wall of the second movable groove.

5. The showerhead fixation device of claim 4, wherein: The base plate is provided with a plurality of first positioning pins, the nozzles are provided with first connecting ears, the first connecting ears of the plurality of nozzles are respectively arranged corresponding to the plurality of first positioning pins, the first connecting ears are provided with first positioning grooves for the corresponding first positioning pins to be inserted, and in the first direction, first gaps are respectively formed between the opposite side walls of the first positioning pins and the inner side walls of the corresponding first positioning grooves.

6. The nozzle holder of any one of claims 1-3, wherein: ​ 7. The showerhead fixation device of claim 6, wherein: The bottom plate is provided with a plurality of second positioning pins, the shower head is provided with a second connecting lug, the second connecting lug of each shower head is arranged in the first direction, the second connecting lug of the plurality of shower heads is correspondingly arranged with the plurality of second positioning pins, the second connecting lug is provided with a second positioning slot for inserting the corresponding second positioning pin, and in the first direction, the opposite two side walls of the second positioning pin and the inner side wall of the corresponding second positioning slot have a second gap.

8. The showerhead fixation device of claim 7, wherein: In the third direction perpendicular to the first direction and the second direction, the first positioning pin abuts the inner side wall of the corresponding first positioning slot, and the second positioning pin abuts the inner side wall of the corresponding second positioning slot.

9. The nozzle holder of any one of claims 1-3, wherein: The bottom plate has a first surface and a second surface arranged in the second direction, the threaded hole penetrates the first surface and the second surface, the end of the threaded segment exposed to the first surface is provided with a first square hole, and the end of the tapered segment exposed to the second surface is provided with a second square hole.

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