A quick-release print head module and a printer

Abstract

The present invention provides a quick-disassembly print head module, which relates to the technical field of printing devices. The quick-disassembly print head module includes a mounting base and a print head group. The mounting base includes a connecting member, and an installation groove is provided on the connecting member. The print head group includes a connecting rod adapted to the installation groove. The print head group is movably assembled on the mounting base by matching the connecting rod with the installation groove. In the quick-disassembly print head module of the present application, an installation groove is provided on the connecting member of the mounting base, and the connecting rod of the print head group is movably assembled in the installation groove in a matching manner, so that the print head group is assembled and fixed on the mounting base, realizing that during the loading and unloading process of the print head, the user can quickly disassemble and assemble the print head to facilitate the cleaning or replacement of the print head. The present invention further provides a printer.

Description

Technical Field

[0001] The present invention relates to the technical field of printing devices, and more particularly, to a quick-release print head module and a printer. Background Art

[0002] Generally, the print head is prone to nozzle blockage after multiple prints or long-term non-use. It is often difficult to unclog the print head after blockage, and it is necessary to separately disassemble the print head for cleaning or directly replace the print head. In the prior art, the installation and disassembly of the print head are mostly through the fixed connection of fasteners such as screws, directly fastening and fixing the print head in the printer, or through a print head installation mechanism, such as a print head module installation structure in Chinese Patent Publication No. CN205705316U, or a print head installation structure in Chinese Patent Publication No. CN1951698B, installing the print head into the printer through the installation structure. The above assembly methods make the disassembly and assembly of the print head cumbersome and time-consuming. It takes a lot of time to replace the print head, which is very unfavorable for the cleaning, maintenance, and replacement of the print head, and also affects the assembly efficiency of the whole machine. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a quick-release print head module and a printer, so that the user can quickly disassemble and assemble the print head during the loading and unloading process to facilitate the cleaning or replacement of the print head.

[0004] The present invention adopts the following solutions:

[0005] A quick-release print head module includes an installation base and a print head group. The installation base includes a connecting member, and an installation groove is provided on the connecting member. The print head group includes a connecting rod adapted to the installation groove. The print head group is movably assembled on the installation base through the cooperation of the connecting rod and the installation groove.

[0006] As a further improvement, a frictional resistance is generated when the connecting rod is assembled with the installation groove. The installation groove includes a first clamping portion and a second clamping portion, and an adjusting device for changing the relative positions of the first clamping portion and the second clamping portion is provided on the connecting member.

[0007] As a further improvement, the adjusting device includes a first inclined surface provided on the connecting member, a second inclined surface provided on an adjusting cap, and an adjusting screw; by changing the relative positions of the first inclined surface and the second inclined surface through the adjusting screw, the deformation of the installation groove is changed, thereby changing the magnitude of the frictional resistance.

[0008] As a further improvement, an auxiliary device is provided on the installation groove to facilitate the insertion of the connecting rod into the installation groove.

[0009] As a further improvement, the adjusting device includes an adjusting shaft provided on the installation groove, and the auxiliary device is provided on the adjusting shaft and located on the installation groove.

[0010] As a further improvement, on both sides of the connecting piece along the opening direction of the installation groove, symmetrically protruding first installation ears and second installation ears are provided, and the adjusting shaft is horizontally arranged and passes through between the two installation ears.

[0011] As a further improvement, the auxiliary device is a rolling bearing.

[0012] As a further improvement, a rotating shaft is provided in the installation groove, and a U-shaped groove cooperating with the rotating shaft is provided on the connecting rod; when the connecting rod is placed in the installation groove, the U-shaped groove abuts against the rotating shaft.

[0013] As a further improvement, the connecting rod is made of plastic, a reinforcing groove is provided on the connecting rod, and a metal reinforcing rod is provided on the reinforcing groove.

[0014] The present invention further provides a printer, including a frame and the quick-disassembly print head module provided on the frame.

[0015] By adopting the above technical solutions, the following technical effects can be achieved by the present invention:

[0016] In the quick-disassembly print head module of the present application, by providing an installation groove on the connecting piece of the installation base, the connecting rod of the print head group is movably assembled in cooperation with the installation groove, so that the print head group is assembled and fixed on the installation base, realizing that during the loading and unloading process of the print head, the user can quickly disassemble and assemble the print head to facilitate the cleaning or replacement of the print head.

[0017] Furthermore, the installation groove includes a first clamping portion and a second clamping portion. By changing the relative positions of the first clamping portion and the second clamping portion, the connecting rod and the installation groove are relatively clamped and matched during assembly, realizing the friction fit between the connecting rod and the installation groove, and firmly assembling the print head group to the installation base, improving the printing accuracy and printing speed. And an adjusting device for adjusting the magnitude of the frictional resistance is provided on the connecting piece. By means of the adjusting device, the relative positions of the first clamping portion and the second clamping portion are changed, and the installation groove is deformed, so that the magnitude of the frictional resistance when the connecting rod is assembled into the installation groove can be adjusted according to the size of the connecting rod, and then the print head group is stably fixed.

[0018] Furthermore, an auxiliary device beneficial for inserting the connecting rod into the installation groove is provided on the installation groove, and the adjusting device is provided with an adjusting shaft placed on the installation groove. The auxiliary device is arranged on the adjusting shaft and located inside the installation groove. The auxiliary device is abutted and fitted to the connecting rod entering the installation groove, and a U-shaped groove for abutting and fitting with the rotating shaft placed inside the installation groove is provided at the end of the connecting rod, so that the connecting rod is limited and fixed inside the installation groove, realizing effective assembly and fixation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 is a schematic structural diagram of the quick-release print head module according to Embodiment 1 of the present invention;

[0021] Figure 2 is Figure 1 a schematic structural diagram from another perspective;

[0022] Figure 3 is Figure 1 a schematic structural diagram of the connecting member and the print head group in;

[0023] Figure 4 is Figure 3 a schematic structural diagram from the first perspective;

[0024] Figure 5 is Figure 3 a schematic structural diagram from the second perspective;

[0025] Figure 6 is Figure 5 a partial enlarged schematic diagram at I in;

[0026] Figure 7 is a schematic structural diagram of the printer according to Embodiment 2 of the present invention.

[0027] Reference numerals: 1 - mounting base; 11 - connecting member; 12 - installation groove; 12A - first clamping portion; 12B - second clamping portion; 121 - rotating shaft; 13 - opening; 14 - adjusting device; 141 - adjusting shaft; 142 - adjusting cap; 143 - adjusting screw; 15 - auxiliary device; 151 - rolling bearing; 16 - first mounting ear; 17 - second mounting ear; 2 - print head group; 21 - connecting rod; 211 - U-shaped groove; 212 - strengthening groove; 213 - metal reinforcing rod; 3 - frame; 4 - window; A - first inclined surface; B - second inclined surface. Detailed implementation mode

[0028] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the present invention claimed, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present invention.

[0030] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality" means two or more, unless otherwise specifically defined.

[0031] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is less than that of the second feature.

[0033] Embodiment 1

[0034] Combined with Figures 1 to 2 , the present Embodiment 1 provides a quick-release print head module, which includes a mounting base 1 and a print head group 2.

[0035] The mounting base 1 is provided with a connecting member 11. The connecting member 11 is detachably mounted and fixed on the mounting base 1, and an installation groove 12 is provided on the connecting member 11. The print head group 2 has a connecting rod 21 adapted to the installation groove 12. The print head group 2 is movably assembled on the mounting base 1 through the cooperation between the connecting rod 21 and the installation groove 12, realizing the quick disassembly and assembly of the print head during the loading and unloading process. In this embodiment, the connecting rod 21 protrudes from one side of the print head group 2, and the installation groove 12 of the connecting member 11 exactly and completely accommodates the protruding connecting rod 21 to realize the stable assembly of the print head group 2 on the mounting base 1. The connecting member 11 is provided with an opening 13, and the opening 13 communicates with the installation groove 12. The connecting rod 21 enters the installation groove 12 along the opening 13, so that the connecting rod 21 is completely inserted into the installation groove 12, and the installation groove 12 adapted to the connecting rod 21 and the connecting rod 21 placed in the installation groove 12 are relatively movably assembled.

[0036] It can be understood that the print head group 2 is movably assembled on the mounting base 1 through the connecting rod 21 and the installation groove 12, which can be: the magnetic adsorption cooperation between the connecting rod 21 and the installation groove 12, and by providing magnetic adsorbing components on the connecting rod 21 and the installation groove 12, the movable assembly therebetween is realized. Or, it is the relative snap-fit between the connecting rod 21 and the installation groove 12, so that the connecting rod 21 and the installation groove 12 are tightly clamped or disengaged. Through the above and other methods, the movable assembly of the connecting rod 21 and the installation groove 12 can be satisfied. Hereinafter, the clamping cooperation method between the connecting rod 21 and the installation groove 12 will be specifically described.

[0037] Please refer to Figures 3 to 6, the installation groove 12 includes a first clamping portion 12A and a second clamping portion 12B. By changing the relative positions of the first clamping portion 12A and the second clamping portion 12B, when the connecting rod 21 is assembled with the installation groove 12, they are relatively clamped and fitted. When assembling the print head group 2, the connecting rod 21 is inserted into the installation groove 12. Through the relative extrusion fit of the installation groove 12 on the connecting rod 21, the print head group 2 is stabilized. When disassembling the print head group 2, by pulling out the print head group 2 in the opposite direction of the assembly, rapid disassembly and assembly are achieved. In this embodiment, the first clamping portion 12A and the second clamping portion 12B are oppositely arranged and are located on the connecting members 11 on the left and right sides forming the installation groove 12. The first clamping portion 12A and the second clamping portion 12B approach each other to reduce the left-right distance of the installation groove 12, and move relatively away from each other to increase the left-right distance of the installation groove 12, correspondingly increasing or decreasing the frictional resistance between the installation groove 12 and the connecting rod 21. So that under the cooperation of the two clamping portions, the installation groove 12 is more adapted to the connecting rod 21. The print head group 2 realizes rapid plugging and unplugging assembly to the installation base 1 through the frictional resistance between the installation groove 12 and the connecting rod 21.

[0038] Further, an adjusting device 14 for changing the relative positions of the first clamping portion 12A and the second clamping portion 12B is provided on the connecting member 11, thereby adjusting the magnitude of the frictional resistance between the installation groove 12 and the connecting rod 21. An auxiliary device 15 facilitating the insertion of the connecting rod 21 into the installation groove 12 is provided on the installation groove 12. And the adjusting device 14 includes an adjusting shaft 141 provided on the installation groove 12, and the auxiliary device 15 is provided on the adjusting shaft 141 and is located on the installation groove 12. In this embodiment, the connecting member 11 is preferably made of plastic material. The adjusting device 14 further includes a first inclined surface A provided on the connecting member 11, a second inclined surface B provided on the adjusting cap 142, and an adjusting screw 143. By changing the relative positions of the first inclined surface A and the second inclined surface B through the adjusting screw 143, the relative positions of the first clamping portion 12A and the second clamping portion 12B are changed, causing the installation groove 12 to deform, thereby changing the magnitude of the frictional resistance between the connecting rod 21 and the installation groove 12.

[0039] Please refer to Figure 3 and Figure 4, specifically, on both sides of the connecting member 11 along the opening direction of the installation groove 12, symmetrically protruding first installation ear portions 16 and second installation ear portions 17 are provided. The first clamping portion 12A is located on the same side as the first installation ear portion 16, and the second clamping portion 12B is located on the same side as the second installation ear portion 17. The adjusting shaft 141 is horizontally disposed and passes through between the two installation ear portions. One end of the adjusting shaft 141 is fixedly installed on the first installation ear portion 16, and the other end passes through the second installation ear portion 17. A part of the adjusting shaft 141 protrudes outside the second installation ear portion 17 after passing through it, and there is a clearance fit between the second ear portion 17 and the adjusting shaft 141. The adjusting cap 142 and the adjusting screw 143 are arranged on the adjusting shaft 141 protruding to the side of the second installation ear portion 17. The first inclined surface A is arranged on the second installation ear portion 17 and is arranged on the outer side. The second inclined surface B on the adjusting cap 142 is fixedly installed on the adjusting shaft 141 through the adjusting screw 143, so that the second inclined surface B abuts against the first inclined surface A. The adjusting screw 143 is arranged on the adjusting cap 142 and is fixedly installed on the adjusting shaft 141. By rotating the adjusting screw 143, the second inclined surface B on the adjusting cap 142 is driven to squeeze against the first inclined surface A, so that the second installation ear portion 17 with a clearance fit with the adjusting shaft 141 is squeezed into the installation groove 12, driving the second clamping portion 12B on the same side as the second installation ear portion 17 to be squeezed into the installation groove 12, causing the connecting member 11 to deform, and further adjusting the deformation size of the installation groove 12.

[0040] Among them, please refer to Figure 3 , Figure 5 and Figure 6 , rotating the adjusting screw 143 to drive the second inclined surface B of the adjusting cap 142 to squeeze the first inclined surface A is achieved as follows: The adjusting cap 142 has an internal accommodation cavity (not shown). The adjusting shaft 141 is placed in the accommodation cavity. When the second inclined surface B on the adjusting cap 142 abuts and cooperates with the first inclined surface A on the second installation ear portion 17, there is a spaced arrangement between the adjusting shaft 141 and the cavity wall of the accommodation cavity. At the same time, the adjusting screw 143 sequentially passes through the adjusting cap 142 and the adjusting shaft 141, and there is a threaded fit between the adjusting screw 143 and the adjusting shaft 141, so that the adjusting screw 143 rotates and abuts against the adjusting cap 142, driving the adjusting cap 142 to move along the direction of the threaded fastening of the adjusting screw 143 and the adjusting shaft 141, so that the second inclined surface B squeezes the first inclined surface A, and further causing the installation groove 12 to deform.

[0041] Furthermore, the auxiliary device 15 is arranged on the adjusting shaft 141 and located in the mounting groove 12 to facilitate the insertion of the connecting rod 21 into the mounting groove 12. In this embodiment, the auxiliary device 15 is a rolling bearing 151. The rolling bearing 151 is sleeved on the adjusting shaft 141 and arranged between the two mounting ears. Preferably, the first mounting ear 16 and the second mounting ear 17 are arranged on both sides of the connecting member 11 near the opening 13. The lower end of the rolling bearing 151 sleeved on the adjusting shaft 141 is placed in the mounting groove 12, and the lower end surface of the rolling bearing 151 is placed at the opening 13 to control the opening degree at the opening 13. Inserted into the mounting groove 12 along the opening 13, the upper end surface of the connecting rod 21 is in abutting fit with the rolling bearing 151. By selecting the size of the rolling bearing 151 and adjusting the tight fitting degree of the rolling bearing 151 between the two mounting ears, the connecting rod 21 can be more easily inserted into the mounting groove 12 through the opening. The rolling bearing 151 is sleeved on the adjusting shaft 141, which facilitates the disassembly of the adjusting shaft 141 to replace the rolling bearing 151. And by rotating the adjusting screw 143, the second mounting ear 17 is relatively extruded and deformed into the mounting groove 12. The second mounting ear 17 presses the rolling bearing 151, so that the rolling bearing 151 placed between the first mounting ear 16 and the second mounting ear 17 is fastened on the adjusting shaft 141 under the extrusion of the second mounting ear 17, increasing the frictional resistance between the rolling bearing 151 and the connecting rod 21.

[0042] It can be understood that the auxiliary device 15 can also be a guiding member with an inclination (not shown). The guiding member is arranged at the opening 13, and the inclination angle of the guiding member is obliquely directed towards the mounting groove 12 to increase the opening degree of the opening 13, facilitating the insertion of the connecting rod 21 into the mounting groove 12 and realizing the rapid assembly of the print head.

[0043] Please refer to Figure 3 、 Figure 4 and Figure 5, a rotating shaft 121 is provided in the installation groove 12, and a U-shaped groove 211 adapted to the rotating shaft 121 is provided on the connecting rod 21. When the connecting rod 21 is completely placed in the installation groove 12, the U-shaped groove 211 abuts and engages with the rotating shaft 121. In this embodiment, the U-shaped groove 211 is opened at the end of the connecting rod 21, and the U-shaped groove 211 has a certain elastic force. When installing the print head group 2, the connecting rod 21 is inserted into the installation groove 12 along the opening 13, and the rolling bearing 151 slidably abuts against the upper end surface of the connecting rod 21. When the connecting rod 21 is completely placed in the installation groove 12, the rolling bearing 151 and the connecting rod 21 are in static abutting fit, and the U-shaped groove 211 provided at the end of the connecting rod 21 engages with the adapted rotating shaft 121 for relatively elastic abutting fixation. When disassembling the print head group 2, the print head group 2 is detached in the opposite direction of installation. Under the reverse acting force, the U-shaped groove 211 elastically abutting and fixed to the rotating shaft 121 moves away from the rotating shaft 121, and the rolling bearing 151 slidably abuts against the upper end surface of the connecting rod 21 until the disassembly of the print head group 2 is completed.

[0044] Please refer to Figure 5 , the connecting rod 21 is made of plastic, and a reinforcing groove 212 is provided on the connecting rod 21. A metal reinforcing rod 213 is provided on the reinforcing groove 212, and the metal reinforcing rod 213 is made of a lightweight alloy material. Among them, both the connecting rod 21 and the connecting member 12 are made of plastic, which greatly reduces the weight of the print head module and is convenient for installation and fastening. Moreover, the plastic connecting rod 21 has certain limitations in strength. By opening a reinforcing groove 212 on the connecting rod 21 and providing a metal reinforcing rod in the reinforcing groove 212, the strength of the connecting rod 21 on the print head group 2 is increased to meet the strength requirements in multiple assembly processes.

[0045] Embodiment 2

[0046] Please refer to Figure 7 , in this Embodiment 2, a printer is provided, including a frame 3 and a quick-disassembly print head module provided on the frame 3. The printer has a window 4 through which a user's hand can reach into the window 4 to insert and remove the print head module disposed in the printer, facilitating quick disassembly and assembly by the user.

[0047] The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the concept of the present invention belong to the protection scope of the present invention.

Claims

1. A quick-release print head module, comprising a mounting base and a print head group, characterized in that, The installation base includes a connecting member provided with an installation groove. The print head group includes a connecting rod adapted to the installation groove. The print head group is movably assembled on the installation base by the cooperation of the connecting rod and the installation groove. The connecting member has an opening, and the installation groove is provided with a rolling bearing facilitating the insertion of the connecting rod into the installation groove. The installation groove includes a first clamping portion and a second clamping portion, and the connecting member is provided with an adjusting device for changing the relative positions of the first clamping portion and the second clamping portion. The adjusting device includes an adjusting shaft provided on the installation groove. The rolling bearing is sleeved on the adjusting shaft, and its lower end is placed in the installation groove, and the lower end surface of the rolling bearing is placed at the opening position to control the opening degree at the opening. Inserted into the installation groove along the opening, the upper end surface of the connecting rod is in abutting cooperation with the rolling bearing.

2. The quick-release printhead module according to claim 1, wherein The adjusting device includes a first inclined surface provided on the connecting member, a second inclined surface provided on the adjusting cap, and an adjusting screw. By changing the relative positions of the first inclined surface and the second inclined surface through the adjusting screw, the relative positions of the first clamping portion and the second clamping portion are changed.

3. The quick-release print head module according to claim 1, wherein, The connecting member is convexly provided with a first installation ear portion and a second installation ear portion on both sides along the opening direction of the installation groove, and the adjusting shaft is horizontally arranged and penetrates between the two installation ear portions.

4. The quick-release print head module according to claim 1, wherein A rotating shaft is provided in the installation groove, and a U-shaped groove adapted to the rotating shaft is provided on the connecting rod. When the connecting rod is placed in the installation groove, the U-shaped groove abuts against the rotating shaft.

5. The quick-release print head module according to claim 1, characterized in that, The connecting rod is made of plastic, and a strengthening groove is provided on the connecting rod, and a metal strengthening rod is provided on the strengthening groove.

6. A printer, comprising a frame and a quick-disassembly print head module as described in any one of claims 1 to 5 provided on the frame.

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