Nozzle ink-jet detection device with position-adjustable function and ink-jet printer

Abstract

The utility model belongs to the technical field of ink-jet printing, and provides a nozzle ink-jet detection device with a position-adjustable function in order to overcome the defect that the relative position of a signal transmitting end and a signal receiving end cannot be conveniently and accurately adjusted in the prior art. The first movable part and the second movable part are respectively arranged at two end parts of the main body frame; the signal transmitter and the signal receiver are oppositely arranged on the first movable part and the second movable part respectively; the first adjusting assembly is used for adjusting the first position of the first movable part at one end of the main body frame; the second adjusting assembly is used for adjusting the second position of the second movable part at the other end part of the main body frame; and the adjusted first movable part and the adjusted second movable part ensure that the signal emitted by the signal emitter is transmitted along the direction towards the signal receiver through the signal path. The utility model has the advantage that the relative position of the signal transmitter and the signal receiver can be conveniently and accurately adjusted.

Description

TECHNICAL FIELD

[0001] The utility model relates to inkjet printing technical field especially, it relates to nozzle inkjet detection device and inkjet printer with adjustable function of position. BACKGROUND

[0002] Inkjet printing technology is a kind of technology that ink droplet is jetted to printing medium by the nozzle on the nozzle head to obtain image or character, and it mainly includes reciprocating scanning printing, one-time scanning printing, multiple nozzle side-by-side scanning printing etc., reciprocating scanning printing is also called multiple pass scanning printing, and multiple pass scanning printing refers to that each unit of the image to be printed needs to be interpolated multiple times to print, and each unit is composed of multiple pixel points, such as 2 pass scanning printing, each unit is composed of 2 pixel points, and 3 pass scanning printing, each unit is composed of 3 pixel points;One-time scanning printing is also called single pass scanning printing, and single pass scanning printing refers to that each unit of the image to be printed only needs one scanning to print;Multiple nozzle side-by-side scanning printing is also called one pass scanning printing, and one pass scanning printing refers to that the image to be printed is printed once to complete;And feathering technology in inkjet printing can increase the scanning times of a region of the image to be printed, and improve the precision of printed image.

[0003] However, no matter which printing mode is used for printing, after the nozzle head of inkjet printer works for a long time, the nozzle of nozzle head may be blocked due to ink path pollution, ink deposition, dust, water vapor and other reasons, and if the nozzle of nozzle head is still used after abnormality, it will cause the printed image to have problems such as line pulling, blank, etc., which seriously affects the quality of printed products.

[0004] Although the detection device for detecting nozzle ink ejection has appeared at present, the existing detection device cannot accurately adjust the relative position of signal transmitting end and signal receiving end of detection device, which causes the signal path of signal transmitted from signal transmitting end to signal receiving end to have deviation, so that the accuracy of signal receiving is reduced.

[0005] Therefore, it is urgent to provide a nozzle ink ejection detection device and inkjet printer with adjustable function of position, which can conveniently and accurately adjust the relative position of signal transmitter and signal receiver. Utility model content

[0006] The utility model discloses to the above prior art exists for the signal transmitting end and the signal receiving end's relative position's adjustment is inconvenient and not accurate's insufficient, for realizing the utility model's one purpose, provided with the position adjustable function's nozzle inkjet detection device for detecting whether the nozzle inkjet is unusual, include: main body frame, first mobile piece and second mobile piece are arranged respectively in the both ends of main body frame, signal transmitter and signal receiver are arranged respectively on the first mobile piece and the second mobile piece opposite each other, and the signal that signal transmitter sends is transmitted to signal receiver through signal path, first adjusting assembly is used for adjusting the first position of first mobile piece in one end of main body frame, second adjusting assembly is used for adjusting the second position of second mobile piece in the other end of main body frame, and the first mobile piece and the second mobile piece after adjustment ensure that the signal that signal transmitter sends is transmitted along the direction of signal receiver through signal path, and signal receiver produces nozzle abnormality judging signal according to the signal that signal transmitter sends in the signal path transmission process is blocked by the ink that is sprayed on the ink path.

[0007] Further, the main body frame includes a rectangular body and a protruding plate, the protruding plate is fixed to one side surface of the rectangular body, the protruding plate extends beyond the first end surface and the second end surface in the length direction of the rectangular body, and the extending parts correspond to a first protruding part and a second protruding part, the first mobile piece is rotatably fixed between the first end surface and the first protruding part relative to the first end surface, and the second mobile piece is movably fixed between the second end surface and the second protruding part relative to the second end surface.

[0008] Further, the first adjusting assembly includes a plurality of first adjusting pieces and a plurality of first fixing pieces, a plurality of first adjusting holes corresponding to the plurality of first adjusting pieces are arranged on the first mobile piece, each first adjusting hole is opposite to the first end surface, a plurality of first piece fixing holes corresponding to the plurality of first fixing pieces are arranged on the first mobile piece, each first adjusting piece adjusts the pitch angle of the first mobile piece relative to the main body frame by extending out of the corresponding first adjusting hole by different lengths, a plurality of first frame fixing holes corresponding to the plurality of first fixing pieces are arranged through the first protruding part, after the pitch angle is adjusted, each first fixing piece is fixed to the first piece fixing hole and the first frame fixing hole correspondingly, so that the first mobile piece is fixed to the first protruding part.

[0009] Further, the first adjusting hole is arranged as two pairs of upper and lower pairs opposite in the horizontal direction and the vertical direction, the first piece fixing hole and the first frame fixing hole are all arranged as three and in a triangular shape, two points of the triangular shape are arranged on the same vertical direction, and one pair of first frame fixing holes arranged on the vertical direction is arranged as a waist-shaped hole.

[0010] Further, the second adjusting assembly comprises a plurality of second adjusting members and a plurality of second fixing members; the second protruding part is provided with a plurality of second adjusting holes corresponding to the plurality of second adjusting members, wherein one second adjusting member is connected with the guide hole on the side surface of the second movable part through the corresponding second adjusting hole, and the rest of the second adjusting members abut against the side surface of the second movable part by relatively extending out of the corresponding second adjusting holes, and the moving distance of the second movable part along the horizontal direction perpendicular to the second protruding part is adjusted by adjusting the length of the second adjusting members extending out; the second movable part is provided with a plurality of second member fixing holes corresponding to the plurality of second fixing members, the rectangular body is provided with a plurality of second frame fixing holes corresponding to the plurality of second member fixing holes, each second frame fixing hole is arranged at the position adjacent to the second end surface of the rectangular body, and after the moving distance is adjusted, each second fixing member is fixed to the second member fixing hole and the second frame fixing hole correspondingly, so that the second movable part is fixed to the rectangular body.

[0011] Further, the second adjusting hole is three and arranged along the vertical line, the guide hole is opposite to the second adjusting hole located in the middle of the three second adjusting holes, the second member fixing hole and the second frame fixing hole are both arranged as a pair, the pair of frame fixing holes are arranged opposite to each other close to the two edges of the second end surface, and the pair of second member fixing holes are arranged as a waist-shaped hole structure.

[0012] Further, the waist-shaped hole structure comprises a first waist-shaped hole and a second waist-shaped hole which are connected and the hole center lines of which coincide, the hole diameter of the first waist-shaped hole is larger than that of the second waist-shaped hole, and the first waist-shaped hole and the second waist-shaped hole have a stepped surface therebetween, and the head end surface of the fixing head of the second fixing member after passing through the first waist-shaped hole and the second waist-shaped hole abuts against the stepped surface.

[0013] Further, the first adjusting member, the second adjusting member, the first fixing member and the second fixing member are all arranged as screws, the first position is the rotating position of the first movable part relative to the first protruding part, and the second position is the horizontal moving position of the second movable part relative to the second protruding part.

[0014] In order to realize another object of the utility model, the inkjet printer is provided, including at least one nozzle, each nozzle includes a plurality of nozzles, characterized by, the inkjet printer further includes the nozzle ink detection device with the position adjustable function of any one of the above for detecting whether the nozzle ink is abnormal.

[0015] The utility model has the advantages that:

[0016] The nozzle ink-jet detection device with position-adjustable function and the ink-jet printer can conveniently adjust the relative position of the signal transmitter on the first movable member and the signal receiver on the second movable member by using the first adjusting assembly and the second adjusting assembly, so that the signal transmitted by the signal transmitter can be transmitted to the signal receiver along an accurate signal path, and the signal receiving accuracy is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced as follows, and other drawings can also be obtained by those skilled in the art without creative labor on the premise of not paying creative labor, and these are within the protection scope of the present application.

[0018] Figure 1 The front view of the nozzle ink-jet detection device with position-adjustable function provided by the embodiments of the present application under one viewing angle;

[0019] Figure 2 The exploded view corresponding to Figure 1 ;

[0020] Figure 3 The front view of the nozzle ink-jet detection device with position-adjustable function provided by the embodiments of the present application under another viewing angle;

[0021] Figure 4 The front view of the main body frame of the nozzle ink-jet detection device with position-adjustable function provided by the embodiments of the present application;

[0022] Figure 5 The front view of the first movable member of the nozzle ink-jet detection device with position-adjustable function provided by the embodiments of the present application under one viewing angle;

[0023] Figure 6 The front view of the first movable member of the nozzle ink-jet detection device with position-adjustable function provided by the embodiments of the present application under another viewing angle;

[0024] Figure 7 The front view of the second movable member of the nozzle ink-jet detection device with position-adjustable function provided by the embodiments of the present application;

[0025] BRIEF DESCRIPTION OF DRAWINGS

[0026] 1 - main body frame; 11 - rectangular body; 111 - second frame fixing hole; 12 - protruding plate; 121 - first protruding part; 1211 - first frame fixing hole; 122 - second protruding part; 1221 - second adjusting hole; 2 - first movable piece; 21 - first adjusting hole; 22 - first piece fixing hole; 3 - second movable piece; 31 - guide hole; 32 - second piece fixing hole; 4 - signal transmitter; 5 - signal receiver; 6 - first adjusting assembly; 61 - first adjusting piece; 62 - first fixing piece; 7 - second adjusting assembly; 71 - second adjusting piece; 72 - second fixing piece; 8 - ink duct; 9 - mounting plate; 20 - signal path. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. It should be noted that, in this article, relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms “center”, “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer”, “clockwise”, “counterclockwise” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Moreover, the terms “include”, “contain” or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such a process, method, article or device. Without more limitations, the elements limited by the statement “include” do not exclude the presence of other identical elements in the process, method, article or device that includes the elements. If there is no conflict, the embodiments of the present application and the various features in the embodiments can be combined with each other, and are all within the protection scope of the present application.

[0028] REFERENCE Figures 1 to 3The utility model provides a nozzle ink jet detection device with adjustable function, which is used for detecting whether the nozzle ink jet is abnormal, comprising a main frame 1, a first movable part 2, a second movable part 3, a signal transmitter 4, a signal receiver 5, a first adjusting assembly 6 and a second adjusting assembly 7. The first movable part 2 and the second movable part 3 are respectively arranged at the two ends of the main frame 1. The signal transmitter 4 and the signal receiver 5 are respectively arranged on the first movable part 2 and the second movable part 3 opposite to each other, and the signal emitted by the signal transmitter 4 is transmitted to the signal receiver 5 through the signal path 20. The first adjusting assembly 6 is used for adjusting the first position of the first movable part 2 at one end of the main frame 1, and the second adjusting assembly 7 is used for adjusting the second position of the second movable part 3 at the other end of the main frame 1. The first position includes the rotating position or the horizontal moving position of the first movable part 2 relative to one end of the main frame 1, and the second position includes the horizontal moving position or the rotating position of the second movable part 3 relative to the other end of the main frame 1. The adjusted first movable part 2 and the second movable part 3 ensure that the signal emitted by the signal transmitter 4 is transmitted along the direction towards the signal receiver 5 through the signal path 20. The signal receiver 5 generates a nozzle abnormality judgment signal according to the blocking condition of the ink jet on the signal path 20 during the transmission of the signal emitted by the signal transmitter 4.

[0029] Therefore, the nozzle ink jet detection device with adjustable function provided by the utility model can conveniently adjust the relative position of the signal transmitter 4 on the first movable part 2 and the signal receiver 5 on the second movable part 3 by the first adjusting assembly 6 and the second adjusting assembly 7, which can ensure that the signal (such as laser) emitted by the signal transmitter 4 is transmitted along the accurate signal path 20 towards the signal receiver 5, thereby preventing errors in the detection of whether the nozzle ink jet is abnormal caused by the transmission of the signal along the signal path 20 with deviation, and improving the accuracy of signal reception.

[0030] Please refer to Figure 2 and Figure 4, specifically, the main frame 1 comprises a rectangular body 11 and a protruding plate 12 fixed on one side of the rectangular body 11. The protruding plate 12 extends beyond the first end face and the second end face in the length direction of the rectangular body 11, and the extended parts correspond to a first protruding part 121 and a second protruding part 122. The first movable part 2 is rotatably fixed between the first end face and the first protruding part 121 relative to the first end face, and the second movable part 3 is movably fixed between the second end face and the second protruding part 122 relative to the second end face. Since the adjustment of the relative position of the signal transmitter 4 and the signal receiver 5 is essentially the adjustment of the signal path 20, and the adjustment range of the signal path 20 is generally small, the first adjustment assembly 6 and the second adjustment assembly 7 both play a fine-tuning role, and by providing the first protruding part 121 and the second protruding part 122, the movement of the first movable part 2 and the second movable part 3 can be well limited.

[0031] Please refer to Figure 1 and Figure 2 , further specifically, the first adjustment assembly 6 comprises a plurality of first adjustment parts 61 and a plurality of first fixing parts 62. A plurality of first adjustment holes 21 corresponding to the plurality of first adjustment parts 61 are provided on the first movable part 2, each first adjustment hole 21 is opposite to the first end face, and a plurality of first part fixing holes 22 corresponding to the plurality of first fixing parts 62 are provided on the first movable part 2. Each first adjustment part 61 adjusts the pitch angle of the first movable part 2 relative to the main frame 1 by extending out of the corresponding first adjustment hole 21 by different lengths. A plurality of first frame fixing holes 1211 corresponding to the plurality of first fixing parts 62 are provided through the first protruding part 121. After the pitch angle is adjusted, each first fixing part 62 is fixed to the first part fixing hole 22 and the first frame fixing hole 1211 correspondingly, so as to fix the first movable part 2 and the first protruding part 121.

[0032] Please refer to Figure 1 , preferably, the first adjustment hole 21 is provided as two pairs of upper and lower pairs opposite in the horizontal direction and the vertical direction, the first part fixing hole 22 and the first frame fixing hole 1211 are both provided as three and arranged in a triangular shape, two points of the triangular shape are arranged on the same vertical direction, and one pair of first frame fixing holes 1211 arranged on the vertical direction is provided as a waist-shaped hole. In this way, by synchronously adjusting the first adjustment hole 21 of the upper pair or the lower pair, that is, adjusting the length of the extension to be the same, the pitch angle of the first movable part 2, that is, the signal path 20 relative to the horizontal plane can be adjusted, and by providing the waist-shaped hole, a redundant space can be provided for the fixing range of the first fixing part 62 with the rotation of the first movable part 2.

[0033] Please refer to Figure 2 and Figure 4Further specifically, the second adjusting assembly 7 comprises a plurality of second adjusting members 71 and a plurality of second fixing members 72. The second protrusion 122 is provided with a plurality of second adjusting holes 1221 corresponding to the plurality of second adjusting members 71, wherein one second adjusting member 71 is connected with the guide hole 31 on the side surface of the second movable member 3 through the corresponding second adjusting hole 1221, and the rest of the second adjusting members 71 abut against the side surface of the second movable member 3 by extending out of the corresponding second adjusting hole 1221, and the moving distance of the second movable member 3 along the horizontal direction perpendicular to the second protrusion 122 is adjusted by adjusting the length of each second adjusting member 71 extending out. The second movable member 3 is provided with a plurality of second member fixing holes 32 corresponding to the plurality of second fixing members 72, and the rectangular body 11 is provided with a plurality of second frame fixing holes 111 corresponding to the plurality of second member fixing holes 32, each second frame fixing hole 111 is arranged at a position adjacent to the second end surface of the rectangular body 11, and after the moving distance adjustment is completed, each second fixing member 72 is fixed to the second member fixing hole 32 and the second frame fixing hole 111 correspondingly, so as to fix the second movable member 3 and the rectangular body 11.

[0034] Please refer to Figure 2 and Figure 4 Preferably, the second adjusting holes 1221 are arranged in a vertical straight line and there are three second adjusting holes 1221, and the guide hole 31 is opposite to the second adjusting hole 1221 located in the middle of the three second adjusting holes 1221, and the second member fixing hole 32 and the second frame fixing hole 111 are each arranged in a pair, and the pair of second frame fixing holes 111 are arranged opposite to each other near the two edges of the second end surface, and the pair of second member fixing holes 32 are arranged in a waist-shaped hole structure. In this way, by arranging the second adjusting holes 1221 in a vertical straight line, the force direction parallel to the second movable member 3 is in the same vertical plane, which is beneficial to the stable translation of the second movable member 3, and by arranging the second fixing hole 32 in a waist-shaped hole structure, a redundant space is provided for the range of the second fixing member 72 to be fixed with the movement of the second movable member 3.

[0035] Specifically, the waist-shaped hole structure comprises a first waist-shaped hole (not shown) and a second waist-shaped hole (not shown) which are connected and the hole center lines coincide, the hole diameter of the first waist-shaped hole is larger than that of the second waist-shaped hole, and there is a step surface between the first waist-shaped hole and the second waist-shaped hole, and the head end surface of the fixing head of the second fixing member 72 after passing through the first waist-shaped hole and the second waist-shaped hole abuts against the step surface. In this way, the second fixing member 72 can better fix the second movable member 3 and the main body frame 1.

[0036] Please refer to Figure 2 , Figures 4 to 7Preferably, the first adjusting member 61, the second adjusting member 71, the first fixing member 62 and the second fixing member 72 are all screws, so that the first adjusting hole 21, the second adjusting hole 1221, the first member fixing hole 22, the second member fixing hole 32, the first frame fixing hole 1211 and the second frame fixing hole 111 are correspondingly threaded holes, the first position is a rotating position of the first movable member 2 relative to the first protrusion 121, and the second position is a horizontal moving position of the second movable member 3 relative to the second protrusion 122. In this way, by adopting the screw mode, the effect of fine adjustment of the position can be achieved.

[0037] Reference should be made to Figure 2 and Figure 3 Further, the nozzle ink ejection detection device further comprises an inkwell 8 and a mounting plate 9 which are located above the main frame 1 and below the signal path 20, the inkwell 8 is used for receiving the ink ejected by the ink path for detection, the ink path intersects with the signal path 20, one end of the mounting plate 9 is fixed with the inkwell 8 and the other end is detachably fixed with the main frame 1. In this way, the maintenance of the inkwell 8 such as pouring ink and cleaning can be realized by only detaching the mounting plate 9 relative to the main frame 1, and since the inkwell 8 is convenient to maintain, the nozzle ink ejection detection device can be prevented from being polluted by the ink ejected by the nozzle.

[0038] As another object of the present application, the present application further provides an inkjet printer, which comprises at least one nozzle head, each nozzle head comprises a plurality of nozzles, and the inkjet printer further comprises the nozzle ink ejection detection device with the position adjustable function of any one of the above, which is used for detecting whether the nozzles eject ink abnormally. The inkjet printer can obtain the beneficial effects brought by any one of the nozzle ink ejection detection devices with the position adjustable function, which will not be described here. Therefore, the inkjet printer has the advantage that the relative positions of the signal transmitter and the signal receiver can be adjusted conveniently and accurately, so that the detection of whether the nozzles eject ink abnormally has high reliability and high convenience.

[0039] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: the technical solutions recorded in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A nozzle inkjet detection device with adjustable position function, used to detect whether the nozzle inkjet is abnormal, characterized in that, The utility model relates to a kind of ink-jet printer, including: Main frame; First mobile element and second mobile element are respectively arranged in the both ends of the main frame; Signal transmitter and signal receiver are respectively arranged on the first mobile element and the second mobile element opposite to each other, and the signal emitted by the signal transmitter is transmitted to the signal receiver through signal path; First adjusting assembly is used to adjust the first position of the first mobile element in one end of the main frame; Second adjusting assembly is used to adjust the second position of the second mobile element in the other end of the main frame; After the first mobile element and the second mobile element are adjusted, the signal emitted by the signal transmitter is transmitted along the direction towards the signal receiver through signal path; The signal receiver generates nozzle abnormality judgment signal according to the signal emitted by the signal transmitter being blocked by the ink jetted on the ink path during signal path transmission.

2. The nozzle ejection ink detection apparatus according to claim 1, characterized by The main frame includes a rectangular body and a protruding plate, the protruding plate is fixed on one side of the rectangular body, the part of the protruding plate extending beyond the first end face and the second end face in the length direction of the rectangular body corresponds to the first protruding part and the second protruding part, the first mobile element is rotatably fixed between the first end face and the first protruding part relative to the first end face, and the second mobile element is movably fixed between the second end face and the second protruding part relative to the second end face.

3. The nozzle ejection ink detection apparatus according to claim 2, characterized by The first adjusting assembly includes a plurality of first adjusting elements and a plurality of first fixing elements;A plurality of first adjusting holes corresponding to a plurality of the first adjusting elements are provided on the first mobile element, each of the first adjusting holes is opposite to the first end face, a plurality of first fixing holes corresponding to a plurality of the first fixing elements are provided on the first mobile element, each of the first adjusting elements adjusts the pitch angle of the first mobile element relative to the main frame by extending different lengths relative to the corresponding first adjusting holes;A plurality of first frame fixing holes corresponding to a plurality of the first fixing elements are provided through the first protruding part, after the pitch angle is adjusted, each of the first fixing elements is fixed with the first fixing hole and the first frame fixing hole respectively, so as to fix the first mobile element with the first protruding part.

4. The nozzle ejection ink detection apparatus according to claim 3, wherein The first adjusting hole is provided as two pairs of upper and lower pairs opposite in horizontal direction and vertical direction, the first fixing hole and the first frame fixing hole are all provided as three and arranged in triangle, two points of the triangle are arranged on the same vertical direction, and one pair of the first frame fixing holes arranged on the vertical direction is provided as a waist-shaped hole.

5. The nozzle ejection ink detection apparatus according to claim 3, wherein The second adjusting assembly comprises a plurality of second adjusting members and a plurality of second fixing members; the second protruding part is provided with a plurality of second adjusting holes corresponding to the plurality of second adjusting members, wherein one of the second adjusting members is connected with a guide hole formed on the side surface of the second movable part through the corresponding second adjusting hole, and the remaining second adjusting members abut against the side surface of the second movable part by relatively extending out of the corresponding second adjusting holes, and the moving distance of the second movable part along the horizontal direction perpendicular to the second protruding part is adjusted by adjusting the length of the second adjusting members; the second movable part is provided with a plurality of second member fixing holes corresponding to the plurality of second fixing members, the rectangular body is provided with a plurality of second frame fixing holes corresponding to the plurality of second member fixing holes, each second frame fixing hole is arranged at a position adjacent to the second end surface of the rectangular body, and after the moving distance adjustment is completed, each second fixing member is fixed to the second member fixing hole and the second frame fixing hole correspondingly, so as to fix the second movable part and the rectangular body.

6. The nozzle ejection ink detection apparatus according to claim 5, wherein The second adjusting hole is arranged in three vertical lines, the guide hole is opposite to one of the second adjusting holes located in the middle of the three second adjusting holes, the second member fixing hole and the second frame fixing hole are arranged in pairs, and the pair of second frame fixing holes are arranged opposite to each other near the two edges of the second end surface, and the pair of second member fixing holes are arranged in a waist-shaped hole structure.

7. The nozzle ejection ink detection apparatus according to claim 6, wherein The waist-shaped hole structure comprises a first waist-shaped hole and a second waist-shaped hole which are connected and the hole center lines of which coincide, the hole diameter of the first waist-shaped hole is larger than that of the second waist-shaped hole, and the second fixing member abuts against the stepped surface after the head end surface of the fixing head of the second fixing member passes through the first waist-shaped hole and the second waist-shaped hole.

8. The nozzle ejection ink detection apparatus according to claim 5, wherein The first adjusting member, the second adjusting member, the first fixing member and the second fixing member are all arranged as screws, the first position is the rotating position of the first movable part relative to the first protruding part, and the second position is the horizontal moving position of the second movable part relative to the second protruding part.

9. The nozzle-jet detection apparatus according to any one of claims 1 to 8, characterized by The nozzle ink ejection detection device further comprises an ink fountain and a mounting plate located above the main frame and below the signal path, the ink fountain is used to receive the ink ejected by the ink ejection path of the nozzle for detection, the ink ejection path intersects with the signal path, one end of the mounting plate is fixed with the ink fountain and the other end is detachably fixed with the main frame.

10. An inkjet printer comprising at least one printhead, each printhead comprising a plurality of nozzles, characterised in that, The inkjet printer further comprises the nozzle ink ejection detection device with position adjustable function according to any one of claims 1 to 9 for detecting whether the nozzle ink ejection is abnormal.

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