CN207825739U - Nozzle fixing device and printing equipment with the nozzle fixing device - Google Patents

Abstract

The utility model discloses a shower nozzle fixing device and have shower nozzle fixing device's printing apparatus. The spray head fixing device comprises a fixing plate, a first positioning part and a first elastic part, wherein the fixing plate is provided with a first fixing unit and a second fixing unit, the first fixing unit is used for installing a first spray head, and the second fixing unit is used for installing a second spray head; the first positioning component is movably connected with the fixing plate and used for being abutted against the first spray head to provide a first acting force for the first spray head; the first elastic component is connected with the fixing plate and used for being abutted against the first spray head to provide a second acting force for the first spray head, and the direction of the first acting force is opposite to that of the second acting force to clamp the first spray head. The utility model has the advantages of simple structure, high adjusting precision and convenient adjustment.

Description

Nozzle fixing device and printing equipment with the nozzle fixing device

technical field

The utility model relates to the field of printing equipment, in particular to a nozzle fixing device and printing equipment with the nozzle fixing device.

Background technique

Inkjet printers print images or text by spraying ink droplets on the printing medium through the nozzle. Due to the large amount of data of inkjet printers, especially color inkjet printers, multiple nozzles are usually used to work at the same time to increase the printing speed. Multiple nozzles are installed on the nozzle installation and adjustment mechanism to work at the same time. Since the machining accuracy is on the order of 1 mm, and the accuracy required for printer nozzle installation is on the order of 0.01 mm, it can be seen that the machining accuracy is far from meeting the requirements of printer nozzle installation accuracy. . In order to ensure that the spray point of the nozzle is accurate, the relative physical position between the nozzles is generally adjusted by accurately adjusting the installation and adjustment mechanism of the nozzle.

Existing installation and adjustment mechanisms generally include a mounting plate, a sliding bar, an adjusting plate and a bottom plate. The middle part of the mounting plate is provided with a nozzle installation hole for installing the nozzle. There is a mounting hole in the middle of the sliding bar, two positioning parts are provided at both ends of the sliding bar, and a rotating shaft pin is arranged at one end of the sliding bar, and two step surfaces are arranged on one side along the length direction of the sliding bar, and A stepped surface is provided, wherein the lower side of the two stepped surfaces arranged on the same side is a notch structure. A sliding bar installation hole and an optical axis are arranged on the bottom plate, and a first adjusting mechanism having the same number as the nozzles is also arranged on one end of the bottom plate. A mounting hole is arranged in the middle of the adjustment plate, a through hole is arranged at one end, and a boss is arranged at the other end, and a second adjusting mechanism is arranged on the boss. When in use, adjust the first adjustment mechanism to make the sliding bar move along the optical axis to drive the nozzles to move, adjust the nozzles to the preset position, and push the sliding bar through the second adjustment mechanism to make the adjustment plate rotate around the rotation shaft pin to ensure that all nozzles are completely parallel. However, the existing installation and adjustment mechanism has a complex structure and is inconvenient to use.

Utility model content

The technical problem to be solved by the utility model is to provide a nozzle fixing device with simple structure and easy to use and a printing device with the aforementioned nozzle fixing device.

In the first aspect, the utility model discloses a nozzle fixing device, which includes a fixing plate, a first positioning component and a first elastic component, the fixing plate is provided with a first fixing unit and a second fixing unit, and the first The fixing unit is used to install the first nozzle, and the second fixing unit is used to install the second nozzle; the first positioning part is movably connected with the fixing plate, and is used to abut against the first nozzle to the The first spray head provides a first force; the first elastic member is connected to the fixing plate, and is used to abut against the first spray head to provide a second force to the first spray head, and the first force The direction of the force is opposite to the direction of the second force to clamp the first spray head.

Preferably, the first elastic component includes an elastic member and a resisting member, the elastic member abuts against the resisting member, the resisting member is provided with a spherical crowned resisting surface, and the resisting surface is used for to be in contact with the first spray head.

Preferably, the first elastic component further includes a fixing sleeve, the elastic member is inserted into the fixing sleeve, and the resisting member is flexibly connected with the fixing sleeve.

Preferably, the elastic member includes a spring, the spring is arranged coaxially with the fixed sleeve, the resisting member is a sphere, and the sphere is located at one end of the spring.

Preferably, the first elastic component further includes a fixing block, the fixing block is provided with a connecting hole, the outer peripheral surface of the fixing sleeve is provided with a limiting portion, and the first end of the fixing sleeve is inserted into the connecting hole Inside, the second end of the fixing sleeve is located outside the connecting hole, and the limiting part is located at the opening of the connecting hole.

Preferably, a first screw hole is provided on the fixing plate, and the first positioning component includes a connecting portion and an abutting portion, and the connecting portion is provided with a first screw thread matching the first screw hole, the The connecting part is plugged and connected to the first screw hole, and the abutting part is connected to the connecting part and used to abut against the first spray head, so that the first positioning part can be changed when the first positioning part is rotated. The distance between the first spray head and the second spray head.

Preferably, the first positioning component is columnar and perpendicular to the fixing plate, and the longitudinal section of the abutting portion is trapezoidal.

Preferably, the number of the first fixing unit and the second fixing unit are several, the first fixing unit and the second fixing unit are alternately arranged and spaced in parallel along the first direction of the fixing plate It is set that the orthographic projection of the first fixing unit along the first direction partially overlaps the orthographic projection of the second fixing unit along the first direction.

In the second aspect, the utility model also discloses a printing device, which includes a nozzle fixing device, a first nozzle and a second nozzle, the first nozzle and the second nozzle are installed on the nozzle fixing device, Preferably, the nozzle fixing device is the nozzle fixing device described in any one of the first aspect.

Preferably, the first fixing unit includes a fixing through hole and a first positioning hole, the fixing through hole includes a first edge and a second edge, and the first edge and the second edge are located in the fixing through hole The two ends opposite to each other, the first positioning hole communicates with the fixed through hole and is located outside one end of the fixed through hole; the first spray head includes a nozzle and a first positioning member, and the nozzle is inserted in the In the fixing through hole, the first positioning member is inserted in the first positioning hole, and when the nozzle is in contact with the first edge, the first positioning member and the first positioning member A first gap is formed at one end of the hole facing away from the fixing through hole. When the nozzle moves to contact with the second edge, the first positioning member and the first positioning hole face away from the fixing hole. One end of the through hole is formed with a second gap.

In summary, the nozzle fixing device of the present invention and the printing equipment with the nozzle fixing device have the following beneficial effects: since the fixing plate is provided with a first fixing unit and a second fixing unit, the first fixing unit is used for The first spray head is installed, and the second fixing unit is used to install the second spray head; the first positioning part is movably connected with the fixed plate, and is used to abut against the first spray head to provide the first spray head with First force: the first elastic member is connected to the fixing plate, and is used to abut against the first spray head to provide a second force to the first spray head, and the direction of the first force is the same as that of the first spray head. The direction of the second acting force is opposite, and the first positioning component and the first elastic component are respectively located at opposite ends of the first fixing unit. When adjusting, it is only necessary to adjust the first positioning part, so that the first positioning part directly pushes the first nozzle to move to change the position of the first nozzle, and directly connects with the first nozzle through the first elastic part. A nozzle abuts to position the position of the first nozzle, avoiding the difficulty of adjustment through the cooperation of multiple adjustment parts with complex structures as in the prior art, and the time-consuming, large error and inaccurate adjustments. Ease of use issues. Therefore, the nozzle fixing device and the printing equipment with the nozzle fixing device of the present invention have the advantages of simple structure, high adjustment accuracy and easy adjustment.

Description of drawings

Fig. 1 is a schematic structural view of an embodiment of the utility model nozzle fixing device when a nozzle is installed;

Fig. 2 is a structural schematic diagram of another viewing angle when the nozzle fixing device of the present invention shown in Fig. 1 is installed with a nozzle;

Fig. 3 is a structural schematic diagram of another viewing angle when the nozzle fixing device of the present invention shown in Fig. 1 is installed with a nozzle;

Fig. 4 is a schematic diagram of an exploded structure of Fig. 1;

Fig. 5 is a schematic structural view of the first nozzle shown in Fig. 2;

Fig. 6 is a sectional view along the C-C line direction described in Fig. 3;

Fig. 7 is an enlarged view of area D shown in Fig. 4;

Figure 8 is an enlarged view of the E region shown in Figure 6;

FIG. 9 is an enlarged view of area F shown in FIG. 6 .

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail. It should be noted that, if there is no conflict, the present embodiment and various features in the embodiment can be combined with each other, and all of them are within the protection scope of the present utility model.

Please refer to FIG. 1 to FIG. 9, the utility model discloses a nozzle fixing device 100, which includes a fixing plate 1, a first positioning component 2 and a first elastic component 3, and the fixing plate 1 is provided with a first fixing unit 11 And the second fixing unit 12. The first fixing unit 11 is used for installing the first spray head 4 , and the second fixing unit 12 is used for installing the second spray head 5 . The first positioning part 2 is movably connected with the fixed plate 1, and is used to abut against the first spray head 4 to provide a first force to the first spray head 4; the first elastic part 3 and the connected to the fixed plate 1, and is used to abut against the first spray head 4 to provide a second force to the first spray head 4, the direction of the first force is opposite to the direction of the second force so that Clamp the first spray head 4 .

In this embodiment, the magnitudes of the first force and the second force are equal. It can be understood that, in one embodiment, when the number of the first elastic components 3 When the number of positioning components 2 is not equal or there are other auxiliary external forces, the magnitudes of the first acting force and the second acting force are not equal.

For the convenience of manufacture and use, in this embodiment, the first positioning component 2 and the first elastic component 3 are respectively located at opposite ends of the first fixing unit 11 . It can be understood that, in one embodiment, the first positioning component 2 and the first elastic component 3 are located at the same end of the first fixing unit 11, and the first spray head 4 is provided with a The first elastic component 3 is fastened to the connected connecting parts. In yet another embodiment, the first elastic member 3 may also be located in the middle of one side of the first fixing unit 11 .

Preferably, the number of the first fixing unit 11 and the second fixing unit 12 are several, and the first fixing unit 11 and the second fixing unit 12 are alternately arranged along the fixed plate 1 The first direction OA (directed by the arrow in the figure) is arranged in parallel and at intervals, and the direction perpendicular to the first direction OA of the fixed plate 1 is the second direction OB (directed by the arrow in the figure), and the first fixed unit The orthographic projection of 11 along the first direction OA partially overlaps the orthographic projection of the second fixing unit 12 along the first direction OA. In this embodiment, the length direction of the fixing plate 1 is the first direction OA, and the width direction of the fixing plate 1 is the second direction OB.

Preferably, the first fixing unit 11 includes a fixing through hole 111 , a first positioning hole 112 , a second positioning hole 113 , a first locking hole 114 and a second locking hole 115 . The fixing through hole 111 is in a square shape, and is used for inserting the first nozzle 4 of the printing device. The fixing through hole 111 includes a first edge 116 and a second edge 117, the first edge 116 and the second edge 117 are located at opposite ends of the fixing through hole 111, the first positioning hole 112 The second positioning hole 113 communicates with the fixing through hole 111 and is located outside the other end of the fixing through hole 111 . The first positioning hole 112 and the second positioning hole 113 are used for inserting the first positioning member 41 and the second positioning member 42 of the first spray head 4 to position the first spray head 4 . The first locking hole 114 and the second locking hole 115 are located on one side of the first positioning hole 112 and the second positioning hole 113 respectively, and the first locking hole 114 and the second positioning hole The two locking holes 115 are used for locking the first spray head 4 .

In this embodiment, the cross-sections of the first positioning hole 112 and the second positioning hole 113 are strip-shaped, because the first positioning hole 112 and the second positioning hole 113 are connected to the fixing channel. The holes 111 are connected, so that it is not only convenient to assemble and disassemble the first spray head 4 , but also not easy to damage the first spray head 4 . Wherein, it can be understood that the cross section of the first positioning hole 112 and the second positioning hole 113 can be gourd-shaped, and the gourd-shaped structure is more convenient for the first nozzle 4 to be assembled and disassembled. It can be understood that the The shapes of the first positioning hole 112 and the second positioning hole 113 are not specifically limited here.

The included angle between the center line of the second positioning hole 113 and the first positioning hole 112 and the first edge 116 is α, where 0°<α≦90°. When α is 90°, the fixing plate 1 only needs to accurately determine the center distance between the first positioning hole 112 and the second positioning hole 113 during processing, and the processing and manufacturing of the fixing plate 1 is simple; when 0°<α<90° When the fixed plate 1 is processed, it is not only necessary to determine the accuracy of the center distance between the first positioning hole 112 and the second positioning hole 113, but also to determine the accuracy of its angle. The machining accuracy is higher, making the positioning of the nozzle more accurate. precise.

Preferably, the first elastic member 3 includes an elastic member 31 and a resisting member 32, the elastic member 31 abuts against the resisting member 32, and the resisting member 32 is provided with a spherical crowned resisting surface 321 , the abutting surface 321 is used to abut against the first spray head 4 . Since the abutting member 32 is provided with the abutting surface 321 of a spherical crown, the abutting surface 321 abuts against the first spray head 4, so when the first spray head 4 is inserted into the fixed channel, When the hole 111 is removed from the fixing through hole 111 , the frictional force between the abutting surface 321 and the first spray head 4 is relatively small, which can better protect the first spray head 4 .

Preferably, the first elastic component 3 further includes a fixing sleeve 33 , the elastic member 31 is inserted into the fixing sleeve 33 , and the resisting member 32 is connected with the fixing sleeve 33 in a snap connection. In this embodiment, the first end of the fixed sleeve 33 is provided with a blocking wall 331, the second end of the fixed sleeve 33 is provided with a blocking ring 332, the elastic member 31 is a spring, and the spring is connected to the The fixing sleeve 33 is arranged coaxially, one end of the spring abuts against the blocking wall 331 , and the other end of the spring abuts against the abutting member 32 . The resisting member 32 is roughly hemispherical, and the resisting member 32 is provided with a fastening ring that buckles with the blocking ring 332 . This kind of structure is more compact, the connection is more stable and reliable, and the service life is improved. It can be understood that, in one embodiment, the resisting member 32 is a sphere, the sphere is located at one end of the spring, a part of the sphere is located in the fixing sleeve 33, the The other part of the sphere extends out of the fixing sleeve 33, and this structure is easier to manufacture. It can be understood that, in an embodiment, the first elastic component 3 may be a silicone ball or a shrapnel, etc., therefore, the structure of the first elastic component 3 is not specifically limited here.

Preferably, the first elastic component 3 further includes a fixing block 34, the fixing block 34 is provided with a connecting hole 341, the outer peripheral surface of the fixing sleeve 33 is provided with a limiting portion 333, and the first end of the fixing sleeve 33 Inserted in the connecting hole 341, the second end of the fixing sleeve 33 is located outside the connecting hole 341, the limiting part 333 is located at the opening of the connecting hole 341, and is connected with the fixing block 34 butt against each other. Fixing the fixing sleeve 33 by the fixing block 34 can hinder the shaking of the fixing sleeve 33 and improve the positioning accuracy of the first spray head 4 .

Preferably, the fixing plate 1 is also provided with a first screw hole 118, the first screw hole 118 is located outside the middle of one end of the fixing through hole 111; the first positioning component 2 includes a connecting portion 21 and an abutment part 22, the connecting part 21 is provided with a first screw thread suitable for the first screw hole 118, the connecting part 21 is plugged and connected with the first screw hole 118, and the abutting part 22 is connected with the first screw hole 118. The connecting portion 21 is connected and used to abut against the first spray head 4 , so that the distance between the first spray head 4 and the second spray head 5 can be changed when the first positioning member 2 is rotated.

The cross section of the connecting part 21 can be oval or other irregular shapes, as long as the relative position between the geometric center of the connecting part 21 and the first spray head 4 is changed when the first positioning part 2 is rotated , so as to push the first spray head 4 to move, therefore, the structure of the first positioning member 2 is not specifically limited here. Since the first spray head 4 can be pushed to move when the first positioning member 2 is rotated, the distance between the first spray head 4 and the second spray head 5 can be changed. Therefore, it is easier to locate.

In this embodiment, the first positioning member 2 is columnar and perpendicular to the fixing plate 1 , the longitudinal section of the abutting portion 22 is trapezoidal, and the abutting portion 22 is in the shape of a conical cone. Since the first positioning component 2 is columnar and perpendicular to the fixing plate 1 , it is convenient for the user to rotate the first positioning component 2 during use. It can be understood that the first positioning component 2 may be an eccentric screw or the like.

Preferably, the fixing plate 1 further includes a third fixing unit 13 and a fourth fixing unit 14, the third fixing unit 13 is used for installing the third shower head 6, and the fourth fixing unit 14 is used for installing the fourth shower head 7. The number of the third fixing unit 13 and the fourth fixing unit 14 are several, the third fixing unit 13 and the fourth fixing unit 14 are alternately arranged along the first direction of the fixing plate 1 The OAs are arranged in parallel at intervals, and the orthographic projection of the third fixing unit 13 along the first direction OA partially overlaps the orthographic projection of the fourth fixing unit 14 along the first direction OA. The orthographic projection of the second fixing unit 12 along the first direction OA partially overlaps the orthographic projection of the third fixing unit 13 along the first direction OA. The first fixing unit 11 is provided in a one-to-one correspondence with the third fixing unit 13 , and the second fixing unit 12 is provided in a one-to-one correspondence with the fourth fixing unit 14 . In this embodiment, the structure of the second fixing unit 12 and the third fixing unit 13 is the same as that of the first fixing unit 11 , which will not be repeated here.

The orthographic projection of the first fixing unit 11 along the second direction OB has no overlap with the orthographic projection of the third fixing unit 13 along the second direction OB. The orthographic projection of the second fixing unit 12 along the second direction OB overlaps with the orthographic projection of the fourth fixing unit 14 along the second direction OB. This arrangement makes the All the nozzles are dispersed to facilitate heat dissipation when the nozzles are working.

The nozzle fixing device also includes a second positioning part 81, a second elastic part 82, a third positioning part 91 and a third elastic part 92, the second positioning part 81 is movably connected with the fixing plate 1, and is used for The second spray head 5 abuts to provide a third force to the second spray head 5; the second elastic member 82 is connected to the fixing plate 1 for abutting against the second spray head 5 to provide a third force to the second spray head 5; The second spray head 5 provides a fourth force, and the direction of the third force is opposite to the direction of the fourth force. In this embodiment, the third acting force is equal to the fourth acting force. It can be understood that, in one embodiment, when the number of the second elastic member 82 is equal to the second When the number of positioning components 81 is not equal or there are other auxiliary external forces, the magnitudes of the third acting force and the fourth acting force are not equal.

The third positioning part 91 is movably connected with the fixed plate 1, and is used to abut against the third spray head 6 to provide a fifth force to the third spray head 6; the third elastic part 92 is connected to the The fixing plate 1 is connected to the third spray head 6 to provide a sixth action force to the first spray head 4, and the direction of the sixth action force is opposite to the direction of the fifth action force. In this embodiment, the magnitude of the fifth acting force is equal to that of the sixth acting force. It can be understood that, in an embodiment, when the number of the third elastic member 92 is When the number of positioning components 91 is not equal or there are other auxiliary external forces, the magnitudes of the third acting force and the fourth acting force are not equal.

In this embodiment, the second positioning component 81 and the third positioning component 91 have the same structure as the first positioning component 2, and the second elastic component 82 has the same structure as the third elastic component 92. . Therefore, the structures of the second positioning component 81 , the second elastic component 82 , the third positioning component 91 and the third elastic component 92 will not be repeated here.

The utility model also discloses a printing device, which includes a nozzle fixing device 100, a first nozzle 4, a second nozzle 5, a third nozzle 6 and a fourth nozzle 7, the first nozzle 4, the second nozzle 5, Both the third nozzle 6 and the fourth nozzle 7 are installed on the nozzle fixing device 100 , wherein the nozzle fixing device 100 is the nozzle fixing device 100 described above. It can be understood that the first nozzle 4, the second nozzle 5, the third nozzle 6 and the fourth nozzle 7 can be used to spray ink of the same color, and can also be used to spray ink of different colors. Specific limits.

In this embodiment, the first spray head 4 includes a nozzle 40, a first positioning member 41 and a second positioning member 42, the nozzle 40 is inserted in the fixed through hole 111, and the first positioning member 41 Inserted in the first positioning hole 112 , the second positioning member 42 is inserted in the second positioning hole 113 . The first positioning member 41 and the second positioning member 42 are both cylindrical, and their radii are respectively equal to the widths of the first positioning hole 112 and the second positioning hole 113, so that the first nozzle 4 It can be accurately and firmly inserted on the fixed plate 1 .

Preferably, the first fixing unit 11 further includes a first elastic socket (not shown in the figure) and a second elastic socket (not shown in the figure), the first elastic socket is located at the In the first positioning hole 112 , the second elastic sleeve is located in the second positioning hole 113 . The first elastic sleeve and the second elastic sleeve are respectively connected to the first positioning hole 112 and the second positioning hole 113 through an adhesive, and the first positioning member 41 passes through the elastic sleeve. The connector is fixed in the first positioning hole 112, the second positioning member 42 is fixed in the second positioning hole 113 through the elastic sleeve, the first positioning hole 112 and the second positioning hole The width of the positioning hole 113 is greater than the outer diameters of the first positioning member 41 and the second positioning member 42, which not only facilitates the positioning and installation of the first spray head 4, but also facilitates the disassembly of the first spray head 4. , and when the first spray head 4 expands due to work or heat, it will not be crushed and damaged because there is no free space. Wherein, the elastic sleeve can be a silicone sleeve or the like.

The opposite sides of the nozzle 40 are respectively movably connected with a first locking bolt 43 and a second locking bolt 44, and the first locking bolt 43 and the second locking bolt 44 are inserted in the first locking bolt 44 respectively. Inside the locking hole 114 and the second locking hole 115 . When it is necessary to adjust the position of the first spray head 4, first loosen the first locking bolt 43 and the second locking bolt 44, and then rotate the first positioning member 2 to push the first spray head 4 Move, when the first spray head 4 moves to the preset position, stop rotating the first positioning member 2, and then rotate the first locking bolt 43 and the second locking bolt 44 to fix the nozzle 40 , thus completing the adjustment.

Wherein, when the nozzle 40 is in contact with the first edge 116, a first gap is formed between the first positioning member 41 and the end of the first positioning hole 112 facing away from the fixing through hole 111. When the nozzle 40 moves to contact with the second edge 117, a second gap is formed between the first positioning member 41 and the end of the first positioning hole 112 facing away from the fixing through hole 111, and the The second gap is larger than the first gap. Similarly, when the nozzle 40 is in contact with the first edge 116, a third gap is formed between the second positioning member 42 and the end of the second positioning hole 113 facing away from the fixing through hole 111, When the nozzle 40 moves to contact with the second edge 117, a fourth gap is formed between the second positioning member 42 and the end of the second positioning hole 113 facing away from the fixing through hole 111, thus , can prevent the hole wall of the first positioning hole 112 from pressing against the first positioning member 41, and squeeze the first nozzle 4, and can avoid the hole wall of the second positioning hole 113 from pressing against the second positioning member 42 squeeze, and squeeze the first nozzle 4.

To sum up, the nozzle fixing device 100 of the present invention and the printing equipment with the nozzle fixing device 100 have the following beneficial effects: since the fixing plate 1 is provided with a first fixing unit 11 and a second fixing unit 12, the second A fixing unit 11 is used to install the first nozzle 4, and the second fixing unit 12 is used to install the second nozzle 5; The nozzle 4 abuts to provide a first force to the first nozzle 4; the first elastic member 3 is connected to the fixed plate 1 for abutting against the first nozzle 4 to provide the first force to the first nozzle 4; The spray head 4 provides a second force, the direction of the first force is opposite to the direction of the second force, the first positioning component 2 and the first elastic component 3 are respectively located in the first fixing unit 11 Position opposite ends. When adjusting, it is only necessary to adjust the first positioning part 2, so that the first positioning part 2 directly pushes the first nozzle 4 to move to change the position of the first nozzle 4, and through the first elastic part 3 directly abutting against the first spray head 4 to position the first spray head 4, avoiding complex adjustment and time-consuming adjustment when adjusting through the cooperation of multiple adjustment components with complex structures as in the prior art , The problem of large errors. Therefore, the nozzle fixing device 100 of the present invention and the printing equipment having the nozzle fixing device 100 have the advantages of simple structure, high adjustment accuracy and easy adjustment.

The nozzle fixing device 100 provided by the utility model and the printing equipment with the nozzle fixing device 100 have been introduced in detail above. In this paper, specific examples are used to illustrate the principle and implementation of the utility model. The description of the above embodiments is only It is used to help understand the method of the utility model and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the utility model, there will be changes in the specific implementation and scope of application. In summary , the content of this specification is only the implementation of the utility model, and does not limit the patent scope of the utility model. Any equivalent structure or equivalent process conversion made by using the specification and drawings of the utility model is directly or indirectly used in the Other relevant technical fields are all included in the patent protection scope of the present utility model in the same way. It should not be understood as a limitation of the present utility model.

Claims (10)

1. A nozzle fixing device, characterized in that it comprises a fixing plate, a first positioning component and a first elastic component, the fixing plate is provided with a first fixing unit and a second fixing unit, and the first fixing unit is used for The first spray head is installed, and the second fixing unit is used to install the second spray head; the first positioning part is movably connected with the fixed plate, and is used to abut against the first spray head to provide the first spray head with First force: the first elastic member is connected to the fixing plate, and is used to abut against the first spray head to provide a second force to the first spray head, and the direction of the first force is the same as that of the first spray head. The direction of the second acting force is opposite to clamp the first spray head. 2. The spray head fixing device according to claim 1, wherein the first elastic member comprises an elastic member and an abutting member, the elastic member abuts against the abutting member, and the abutting member is set There is an abutting surface with a spherical crown, and the abutting surface is used to abut against the first spray head. 3. The spray head fixing device according to claim 2, characterized in that, the first elastic member further comprises a fixing sleeve, the elastic member is inserted in the fixing sleeve, and the resisting member is connected to the fixing sleeve. A set of movable buckles are connected. 4. The nozzle fixing device according to claim 3, wherein the elastic member includes a spring, the spring is arranged coaxially with the fixing sleeve, the resisting member is a sphere, and the sphere is located on the at one end of the spring. 5. The spray head fixing device according to claim 3, wherein the first elastic member further comprises a fixing block, the fixing block is provided with a connecting hole, and the outer peripheral surface of the fixing sleeve is provided with a limiting part, so that The first end of the fixing sleeve is inserted into the connecting hole, the second end of the fixing sleeve is located outside the connecting hole, and the limiting part is located at the opening of the connecting hole. 6. The nozzle fixing device according to any one of claims 1 to 5, wherein a first screw hole is provided on the fixing plate, the first positioning component includes a connecting portion and an abutting portion, and the The connecting part is provided with a first screw thread suitable for the first screw hole, the connecting part is plugged and connected with the first screw hole, and the abutting part is connected with the connecting part and is used for connecting with the first screw hole. The spray heads are abutted so that the distance between the first spray head and the second spray head can be changed when the first positioning member is rotated. 7 . The nozzle fixing device according to claim 6 , wherein the first positioning member is columnar and perpendicular to the fixing plate, and the longitudinal section of the abutting portion is trapezoidal. 8. The nozzle fixing device according to any one of claims 1 to 5, characterized in that, the number of the first fixing unit and the second fixing unit are several, and the number of the first fixing unit and the second fixing unit The second fixing units are alternately arranged and arranged in parallel and at intervals along the first direction of the fixing plate, and the orthographic projection of the first fixing units along the first direction is the same as that of the second fixing units along the first direction. The orthographic projections partially overlap. 9. A printing device, which includes a nozzle fixing device, a first nozzle and a second nozzle, the first nozzle and the second nozzle are installed on the nozzle fixing device, it is characterized in that the nozzle is fixed The device is the nozzle fixing device described in any one of claims 1-8. 10. The printing device according to claim 9, wherein the first fixing unit includes a fixing through hole and a first positioning hole, the fixing through hole includes a first edge and a second edge, the first The edge and the second edge are located at opposite ends of the fixing through hole, the first positioning hole communicates with the fixing through hole and is located outside one end of the fixing through hole; the first spray head includes A nozzle and a first positioning member, the nozzle is inserted in the fixed through hole, the first positioning member is inserted in the first positioning hole, when the nozzle is in contact with the first edge , a first gap is formed between the first positioning member and the end of the first positioning hole facing away from the fixing through hole, and when the nozzle moves to contact with the second edge, the first positioning A second gap is formed between the part and the end of the first positioning hole facing away from the fixing through hole.