Printing head fixing device, printing head module and printing equipment

Abstract

The embodiment of the utility model provides a printing head fixing device, a printing head module and printing equipment. The printing head fixing device is used for fixing a printing head on a mounting base, and the printing head fixing device comprises a pressing piece, a first limiting piece and a first elastic piece. The pressing piece is used for pressing the mounting part of the printing head; the first limiting piece is fixedly connected with the mounting base; the first limiting piece is used for movably mounting the pressing piece on the mounting base; the first elastic piece is arranged at one end, away from the mounting part, of the pressing piece; and the first elastic piece is used for being matched with the first limiting piece, so that the pressing piece forms pressing force on the mounting part and the mounting base of the printing head under the action of the first elastic piece, and the mounting part and the mounting base are tightly attached to each other. In the repeated disassembly and assembly process of the printing head, the screws do not need to be tightened and loosened, and therefore the disassembly and assembly efficiency of the printing head is improved.

Description

Technical Field

[0001] The present application relates to the technical field of nozzle printing, and particularly relates to a print head fixing device, a print head module and a printing device. Background Art

[0002] A printing device includes a print head. In related technologies, the print head is mostly fixed by screws. When the number of printing devices is large, the number of print heads to be disassembled and assembled is correspondingly large, such as dozens or even hundreds. The screw fixing method will result in low disassembly and assembly efficiency of the print head, seriously affecting the assembly efficiency and the maintenance and replacement efficiency. Summary of the Utility Model

[0003] The purpose of the embodiments of the present application is to provide a print head fixing device, a print head module and a printing device to improve the disassembly and assembly efficiency of the print head. The specific technical solutions are as follows:

[0004] An embodiment of the first aspect of the embodiments of the present application provides a print head fixing device for fixing a print head to a mounting base. The print head fixing device includes a pressing member, a first limiting member and a first elastic member. The pressing member is used to press the mounting portion of the print head; the first limiting member is fixedly connected to the mounting base; the first limiting member is used to movably mount the pressing member on the mounting base; the first elastic member is disposed at one end of the pressing member away from the mounting portion; the first elastic member is used to cooperate with the first limiting member so that under the action of the first elastic member, the pressing member forms a pressing force on the mounting portion of the print head and the mounting base, so that the mounting portion and the mounting base are closely attached.

[0005] In some embodiments of the present application, the first end of the first limiting member is elastically connected to the pressing member; the second end of the first limiting member is fixedly connected to the mounting base;

[0006] The first elastic member is located between the first end of the first limiting member and the pressing member, and both ends of the first elastic member are respectively abutted against the first end of the first limiting member and the pressing member.

[0007] In some embodiments of the present application, the second end of the first limiting member extends into the mounting base from the surface of the mounting base close to the pressing member, and is embedded in or penetrates through the mounting base.

[0008] In some embodiments of the present application, the first limiting member includes: a first mounting post and a first anti-disengagement member;

[0009] The first anti-disengagement member is disposed at the first end of the first mounting post;

[0010] The second end of the first mounting post passes through the pressing member and is fixedly connected to the mounting base;

[0011] The first elastic member is sleeved outside the first mounting post, and two ends of the first elastic member are respectively abutted against the first anti - detachment member and the pressing member.

[0012] In some embodiments of the present application, the first end of the first limiting member is hinged to the pressing member;

[0013] The first elastic member is arranged at the hinge joint of the first limiting member and the pressing member, so that the pressing member forms a pressing force on the mounting portion of the print head and the mounting base, making the mounting portion and the mounting base fit tightly.

[0014] In some embodiments of the present application, the first limiting member includes: a second mounting post;

[0015] The first end of the second mounting post is hinged to the pressing member through a connecting shaft;

[0016] The second end of the second mounting post is fixedly connected to the mounting base;

[0017] The first elastic member is sleeved outside the connecting shaft and is respectively abutted against the first end of the second mounting post and the pressing member.

[0018] In some embodiments of the present application, the second end of the first limiting member bypasses the surface of the mounting base close to the pressing member and is fixedly connected to the side surface of the mounting base or the surface of the mounting base far from the pressing member.

[0019] In some embodiments of the present application, the pressing member includes: a third mounting post and a pressing portion;

[0020] The first end of the third mounting post is slidably connected to the first end of the first limiting member; the second end of the third mounting post passes through the first end of the first limiting member;

[0021] The pressing portion is arranged at the second end of the third mounting post;

[0022] The first elastic member is sleeved outside the third mounting post, and two ends of the first elastic member are respectively abutted against the first end of the first limiting member and the pressing portion, so that the pressing portion presses against the print head.

[0023] In some embodiments of the present application, the pressing member further includes: a second anti - detachment member;

[0024] The second anti - detachment member is arranged at the first end of the third mounting post, on the side of the first end of the first limiting member far from the first elastic member.

[0025] In some embodiments of the present application, the first limiting member includes: an auxiliary connecting member;

[0026] The auxiliary connecting member is U-shaped. The first end of the auxiliary connecting member is elastically connected to the pressing member, and the second end of the auxiliary connecting member is connected to the mounting base.

[0027] In some embodiments of the present application, the auxiliary connecting member includes: a first connecting member and a second connecting member;

[0028] The first end of the first connecting member and the second end of the second connecting member are respectively connected to the pressing member and the mounting base; the second end of the first connecting member and the first end of the second connecting member are rotatably connected, so that the first connecting member can drive the pressing member to approach or move away from the print head.

[0029] In some embodiments of the present application, the first limiting member further includes: a support member;

[0030] The support member is located between the pressing member and the mounting base, and is used to cooperate with the first elastic member to press the pressing member against the print head.

[0031] In some embodiments of the present application, the support member is a second elastic member, a rigid member, or a combination of a second elastic member and a rigid member.

[0032] In some embodiments of the present application, the pressing portion and the first limiting member are arranged at intervals;

[0033] Or, the first end of the pressing portion is sleeved outside the first limiting member and is slidably connected to the first limiting member; the second end of the pressing portion is used to press the mounting portion of the print head.

[0034] In some embodiments of the present application, a limiting pin is provided on one side of the pressing member facing the mounting portion of the print head; the limiting pin is used to be inserted into the inside of the mounting portion.

[0035] In some embodiments of the present application, the print head fixing device further includes: a second limiting member;

[0036] The second limiting member is arranged at an interval from the first limiting member;

[0037] One end of the second limiting member passes through the mounting portion of the print head and is inserted into the inside of the mounting base.

[0038] An embodiment of the second aspect of the present application provides a print head module, which includes a print head, a mounting base, and the print head fixing device according to any embodiment of the first aspect. The print head fixing device is used to movably connect the print head to the mounting base.

[0039] In some embodiments of the present application, the mounting base is provided with a mounting space for placing the print head, and the mounting space is located at the middle position of the mounting base;

[0040] The print head fixing device is arranged at the edge position of the mounting base.

[0041] In some embodiments of the present application, the mounting space includes: a mounting through hole; the print head further includes: a printing part fixedly connected to the mounting part; the printing part is arranged in the mounting through hole; the mounting part of the print head is mounted outside the mounting base;

[0042] Or, the mounting space includes: a mounting groove and a mounting through hole; the mounting through hole is located at the middle position of the mounting groove; the print head further includes: a printing part fixedly connected to the mounting part; the printing part is arranged in the mounting through hole; the mounting part of the print head is embedded in the mounting groove.

[0043] In some embodiments of the present application, the number of the mounting parts of the print head is two, which are respectively arranged on opposite sides of the printing part;

[0044] The number of the print head fixing devices is two, which are arranged in one-to-one correspondence with the two mounting parts.

[0045] An embodiment of the third aspect of the present application provides a printing device, which includes the print head module according to any embodiment of the second aspect.

[0046] Advantageous effects:

[0047] The print head fixing device of the embodiment of the present application is used to fix the print head on the mounting base. The print head fixing device includes a pressing member, a first limiting member, and a first elastic member. The first elastic member is used to cooperate with the first limiting member so that under the action of the first elastic member, the pressing member forms a pressing force on the mounting portion of the print head and the mounting base, so that the mounting portion and the mounting base are closely attached. In this way, when disassembling and assembling the print head, the print head fixing device can be first installed on the mounting base. Since the first elastic member is elastic and can deform, an external force can be applied to the pressing member, so that the pressing member moves away from the mounting base under the action of the external force, and the pressing member no longer presses the mounting portion and the mounting base, providing a disassembly and assembly space for the print head. At this time, the print head can be removed from the mounting base or the print head can be set on the mounting base. In the above process, the first elastic member is always compressed by the pressing member and the first limiting member. After removing the external force, the pressing member returns to its original position under the elastic force of the first elastic member, and can press the mounting portion of the print head and the mounting base to realize the fixation of the print head. Compared with the print head fixing device using the screw fixing method in the related art, in the process of disassembling and assembling the print head multiple times, only the first time the print head fixing device and the mounting base need to be installed, and in the subsequent times, only an external force needs to be applied to the pressing member to lift or lower it to realize the disassembly and assembly of the print head, without tightening and loosening the screws, thereby improving the disassembly and assembly efficiency of the print head.

[0048] The print head module of the embodiment of the present application includes a print head, a mounting base, and the print head fixing device of any one of the above embodiments. In the process of disassembling and assembling the print head multiple times, only the first time the print head fixing device and the mounting base need to be installed, and in the subsequent times, only an external force needs to be applied to the pressing member to lift or lower it to realize the disassembly and assembly of the print head, without tightening and loosening the screws, thereby improving the disassembly and assembly efficiency of the print head.

[0049] The printing device of the embodiment of the present application includes the print head module of any one of the above embodiments. In the process of disassembling and assembling the print head multiple times, only the first time the print head fixing device and the mounting base need to be installed, and in the subsequent times, only an external force needs to be applied to the pressing member to lift or lower it to realize the disassembly and assembly of the print head, without tightening and loosening the screws, thereby improving the disassembly and assembly efficiency of the print head.

[0050] Of course, it is not necessary for any product implementing the present application to achieve all the above advantages at the same time. Description of the Drawings

[0051] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0052] Figure 1 Structural schematic diagram of the print head module according to the first embodiment of the present application;

[0053] Figure 2 For Figure 1 exploded structural schematic diagram;

[0054] Figure 3 For Figure 1 A-A cross-sectional view of

[0055] Figure 4 For Figure 1 front view of

[0056] Figure 5 Structural schematic diagram of the print head module according to the second embodiment of the present application;

[0057] Figure 6 For Figure 5 partial enlarged schematic view at P of

[0058] Figure 7 Partial structural schematic diagram of the print head module according to the third embodiment of the present application;

[0059] Figure 8 Partial structural schematic diagram of the print head module according to the fourth embodiment of the present application;

[0060] Figure 9 Partial structural schematic diagram of the print head module according to the fifth embodiment of the present application;

[0061] Figure 10 Partial structural schematic diagram of the print head module according to the sixth embodiment of the present application;

[0062] Figure 11 Partial structural schematic diagram of the print head module according to the seventh embodiment of the present application.

[0063] Explanation of reference numerals:

[0064] Print head fixing device 10; print head 20; mounting portion 21; first fixing hole 211; printing portion 22; mounting base 30; mounting through hole 31; mounting groove 32; second fixing hole 321; first through hole 33; pressing member 100; third mounting post 110; pressing portion 120; limiting pin 130; third fixing hole 140; second anti-detachment member 150; connecting portion 160; first limiting member 200; first end 200a of the first limiting member; second end 200b of the first limiting member; first mounting post 210; first anti-detachment member 220; second mounting post 230; auxiliary connecting member 240; first connecting member 241; second connecting member 242; supporting member 250; second elastic member 251; rigid member 252; third anti-detachment member 260; first elastic member 300; second limiting member 400; connecting shaft 500. Detailed implementation manner

[0065] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art based on the present application belong to the protection scope of the present application.

[0066] The printing device includes a print head. In the related art, the print head is mostly fixed by screws. When the number of printing devices is large, the number of print heads to be disassembled and assembled is correspondingly large, such as dozens or even hundreds. The screw fixing method will result in low disassembly and assembly efficiency of the print head, seriously affecting the assembly efficiency and maintenance and replacement efficiency. To solve the above technical problems, the embodiments of the present application propose a print head fixing device, a print head module and a printing device.

[0067] As Figure 1 and Figure 2 shown, Figure 1 is a schematic structural diagram of a print head module according to the first embodiment of the present application, Figure 2 is Figure 1Schematic diagram of the decomposition structure. The print head module includes a print head 20, a mounting base 30, and a print head fixing device 10. An embodiment of the first aspect of the present application provides a print head fixing device 10 for fixing the print head 20 to the mounting base 30. The print head fixing device 10 includes a pressing member 100, a first limiting member 200, and a first elastic member 300. The pressing member 100 is used to press the mounting portion 21 of the print head 20. The first limiting member 200 is fixedly connected to the mounting base 30. The first limiting member 200 is used to movably mount the pressing member 100 on the mounting base 30. The first elastic member 300 is disposed at one end of the pressing member 100 away from the mounting portion 21. The first elastic member 300 is used to cooperate with the first limiting member 200 so that, under the action of the first elastic member 300, the pressing member 100 forms a pressing force on the mounting portion 21 of the print head 20 and the mounting base 30, so that the mounting portion 21 and the mounting base 30 are closely attached.

[0068] The print head fixing device 10 of the embodiment of the present application is used to fix the print head 20 to the mounting base 30. The print head fixing device 10 includes a pressing member 100, a first limiting member 200, and a first elastic member 300. The first elastic member 300 is used to cooperate with the first limiting member 200 so that, under the action of the first elastic member 300, the pressing member 100 forms a pressing force on the mounting portion 21 of the print head 20 and the mounting base 30, so that the mounting portion 21 and the mounting base 30 are closely attached. Thus, when disassembling and assembling the print head 20, the print head fixing device 10 can be first installed on the mounting base 30. Since the first elastic member 300 has elasticity and can deform, an external force can be applied to the pressing member 100, so that the pressing member 100 moves in a direction away from the mounting base 30 under the action of the external force, and the pressing member 100 no longer presses the mounting portion 21 and the mounting base 30, providing a disassembly and assembly space for the print head 20. At this time, the print head 20 can be removed from the mounting base 30 or the print head 20 can be disposed on the mounting base 30. In the above process, the first elastic member 300 is always compressed by the pressing member 100 and the first limiting member 200. After removing the external force, the pressing member 100 resets under the elastic force of the first elastic member 300 and can press the mounting portion 21 of the print head 20 and the mounting base 30 to realize the fixation of the print head 20. Compared with the print head fixing device 10 that uses a screw fixing method in the related art, in the print head fixing device 10 of the embodiment of the present application, during multiple disassembly and assembly processes of the print head 20, only the first time is required to install the print head fixing device 10 and the mounting base 30. In subsequent times, only an external force needs to be applied to the pressing member 100 to lift or lower it to realize the disassembly and assembly of the print head 20, without tightening and loosening the screws, thereby improving the disassembly and assembly efficiency of the print head 20.

[0069] In the first embodiment of the present application, as Figure 3 and Figure 4 shown,Figure 3 is Figure 1 the A-A sectional view of Figure 4 is Figure 1 the front view of . The first end 200a of the first limiting member is elastically connected to the pressing member 100; the second end 200b of the first limiting member is fixedly connected to the mounting base 30; the first elastic member 300 is located between the first end 200a of the first limiting member and the pressing member 100, and both ends of the first elastic member 300 are respectively abutted against the first end 200a of the first limiting member and the pressing member 100, so that the pressing member 100 can push the first elastic member 300 under the action of an external force, deforming the first elastic member 300, and the pressing member 100 moves away from the mounting base 30 to provide a disassembly and assembly space for the installation part 21; after the external force is removed, the first elastic member 300 can release the elastic force and push the pressing member 100, so that the pressing member 100 presses the installation part 21 and the mounting base 30 tightly.

[0070] In the first embodiment of the present application, as Figures 2 to 4 shown, the first limiting member 200 includes a first mounting post 210 and a first anti-disengagement member 220; the first anti-disengagement member 220 is arranged at the first end of the first mounting post 210; the second end of the first mounting post 210 passes through the pressing member 100 and is fixedly connected to the mounting base 30; the first elastic member 300 is sleeved outside the first mounting post 210, and both ends of the first elastic member 300 are respectively abutted against the first anti-disengagement member 220 and the pressing member 100. The first elastic member 300 is sleeved outside the first mounting post 210, and the first mounting post 210 has a guiding effect on the deformation of the first elastic member 300, so as to ensure that the elastic force of the first elastic member 300 can push the pressing member 100 along the extending direction of the first mounting post 210; both ends of the first elastic member 300 are respectively abutted against the first anti-disengagement member 220 and the pressing member 100, and the first anti-disengagement member 220 can prevent the first elastic member 300 from disengaging from the first mounting post 210, and jointly act with the pressing member 100 to compress the first elastic member 300 during the process of the pressing member 100 moving away from the mounting base 30.

[0071] In the first embodiment of the present application, as Figure 2 and Figure 3 shown, the second end 200b of the first limiting member extends from the surface of the mounting base 30 close to the pressing member 100 into the mounting base 30 and is embedded in the mounting base 30, so as to realize the fixed connection between the first limiting member 200 and the mounting base 30. A first through hole 33 can be provided on the mounting base 30, and the second end 200b of the first limiting member is inserted into the first through hole 33 and connected to the mounting base 30 through the first through hole 33. Optionally, they can be fixedly connected by welding or threaded connection.

[0072] In some other embodiments of the present application, the second end 200b of the first limiting member may also penetrate through the mounting base 30. A third anti - detachment member (not shown in the figure) may be provided at the second end 200b of the first limiting member. The third anti - detachment member is located on the side of the mounting base 30 away from the pressing member 100 and is fixedly connected to the first mounting post 210.

[0073] Optionally, both the first anti - detachment member 220 and the third anti - detachment member may be nuts, and the first mounting post 210 is a screw; the first anti - detachment member 220 and the first mounting post 210 may also be, as Figure 3 shown, an integral structure, and the present application does not make any limitation thereto.

[0074] In the first embodiment of the present application, as Figures 2 to 4 shown, the first end of the pressing member 100 is sleeved outside the first limiting member 200 and is slidably connected to the first limiting member 200; the second end of the pressing member 100 is used to press the mounting portion 21 of the print head 20. In this way, the first limiting member 200 plays a guiding role in the sliding of the pressing member 100, which is beneficial to improving the movement accuracy. Moreover, during the disassembly and assembly of the print head 20, the pressing member 100 is always connected to the first limiting member 200 and is not easily lost. Optionally, a third fixing hole 140 for the first limiting member 200 to pass through may be provided on the pressing member 100.

[0075] In the first embodiment of the present application, as Figure 3 and Figure 4 shown, the pressing member 100 is in contact with the mounting base 30, and the mounting portion 21 of the print head 20 can be embedded into the mounting base 30. In this way, space can be saved.

[0076] In the first embodiment of the present application, as Figures 1 to 4 shown, the print head fixing device 10 further includes a second limiting member 400; the second limiting member 400 is spaced apart from the first limiting member 200; one end of the second limiting member 400 passes through the mounting portion 21 of the print head 20 and is inserted into the interior of the mounting base 30. The second limiting member 400 can further fix the print head 20 and can improve the reliability of the installation. Optionally, as Figure 2 shown, the second limiting member 400 may be a pin. A first fixing hole 211 adapted to it is provided on the mounting portion 21, and a second fixing hole 321 adapted to it may be provided on the mounting base 30. The pin is inserted into the first fixing hole 211 and the second fixing hole 321; among them, the second fixing hole 321 may be a blind hole, so as to prevent the pin from coming out of it; the mounting portion 21 and the mounting base 30 are pin - connected, which can limit the movement of the two in the front - back, left - right directions; the pin - connection fixing method is simple, and the plug - and - play connection method does not require the operation of screwing in screws, and the installation is simple and fast.

[0077] AsFigure 1 In the shown implementation, during the process of fixing the print head 20, the print head fixing device 10 can be pre-installed on the installation base 30, that is, pre-treatment is carried out. When installing the print head 20, only the work done against the first elastic member 300 needs to be overcome, so that the pressing member 100 moves upward to compress the first elastic member 300. Then, the installation portion 21 of the print head 20 is placed under the pressing member 100, and then the pressing member 100 is released, so that the first elastic member 300 releases its elastic force, and the installation portion 21 is pressed tightly on the installation base 30 by relying on the first elastic member 300. Finally, the installation portion 21 of the print head 20 and the installation base 30 are pin-connected and fixed through the second limiting member 400. It can be understood that when an external force is applied to the pressing member 100, it can also be rotated by a certain angle around the first limiting member 200 to provide a disassembly and assembly space for the print head 20. Then, after the print head 20 and the installation base 30 are pin-connected and fixed through the second limiting member 400, the pressing member 100 is rotated to the upper side of the installation portion 21 to press the installation portion 21 and the installation base 30 tightly.

[0078] Of course, in some other implementations of the present application, the second limiting member 400 may not be provided, and the present application does not make any limitations in this regard.

[0079] In the print head fixing device 10 of the first embodiment of the present application, since a first elastic member 300 is provided between the pressing member 100 and the first limiting member 200, the pressing member 100 can fasten the print head 20 on the installation base 30 under the elastic force of the first elastic member 300; and the pressing member 100 can be moved within a certain range by compressing the first elastic member 300, which is convenient for the rotation or up and down movement of the pressing member 100, and simplifies the installation process of the print head 20. After the print head fixing device 10 is successfully installed once, the disassembly and assembly of the print head 20 and the installation base 30 can be realized without disassembly and assembly. That is to say, only one installation is required, and it can be used repeatedly. Therefore, the disassembly and assembly efficiency of the print head 20 can be greatly improved, especially the replacement efficiency during subsequent maintenance is greatly improved.

[0080] The difference between the print head fixing device 10 of the second embodiment of the present application and the print head fixing device 10 of the first embodiment of the present application lies in whether the first limiting member 200 penetrates the installation base 30, whether the pressing member 100 and the installation base 30 are spaced apart, and whether a support member 250 is included.

[0081] In the second embodiment of the present application, as Figure 5 and Figure 6 shown, Figure 5 is a schematic structural diagram of the print head module of the second embodiment of the present application, Figure 6 is Figure 5Partial enlarged schematic view at P. The mounting portion 21 is located outside the mounting base 30. The pressing member 100 is spaced from the mounting base 30. Since it does not need to be embedded in the mounting base 30, as long as the thickness of the mounting portion 21 is within a certain range, it has no impact on the installation of the print head 20, and the versatility is higher.

[0082] In the second embodiment of the present application, as Figure 5 and Figure 6 shown, the first limiting member 200 further includes a support member 250; the support member 250 is located between the pressing member 100 and the mounting base 30 and is used to cooperate with the first elastic member 300 to press the pressing member 100 against the print head 20. The height of the support member 250 is adapted to the height of the mounting portion 21 of the print head 20. By replacing the support members 250 with different heights, it can be adapted to different models of print heads 20, and the versatility is higher.

[0083] In the second embodiment of the present application, as Figure 5 and Figure 6 shown, the support member 250 can be a combination of a second elastic member 251 and a rigid member 252. Optionally, the rigid member 252 is located on the side of the second elastic member 251 close to the mounting base 30. The rigid member 252 can prevent the second elastic member 251 from directly contacting the mounting base 30, thereby avoiding wearing the mounting base 30.

[0084] In some other embodiments of the present application, as Figure 5 and Figure 6 shown, the support member 250 can also be the second elastic member 251 or the rigid member 252, and the present application does not limit this.

[0085] When the support member 250 is only the second elastic member 251, since the second elastic member 251 has good buffering performance, the impact resistance, shock resistance, etc. of the print head 20 can be improved.

[0086] When the support member 250 is only the rigid member 252, it can prevent the support member 250 from generating a reverse elastic force on the pressing member 100, thereby appropriately reducing the pressure required for the first elastic member 300 to press the pressing block.

[0087] Optionally, the second elastic member 251 can be a spring, a rubber product or a silica gel product. Springs, rubber products and silica gel products have certain buffering performance and can reduce the impact of external vibration on the print head 20. It can be understood that when the pressing member 100 presses the print head 20, the pressing surface of the support member 250 and the pressing member 100 should be flush with the mounting portion 21 of the pressing member 100 and the print head 20, that is, they are at the same height.

[0088] Optionally, the rigid member 252 is a metal spacer. The metal spacer has good mechanical strength such as tensile and compressive strength, and it also has the advantage of being easy to process. The shape and size of the metal spacer are not specifically limited and can be circular, quadrilateral, hexagonal, etc. The figure only shows a circular shape as an example. The metal spacer can be sleeved or threadedly connected to the first mounting post 210. When the metal spacer is sleeved on the first mounting post 210, the structure of the metal spacer and the first mounting post 210 can be simplified. When the metal spacer is threadedly connected to the first mounting post 210 and acts together with the second limiting member 400, it can play a role in fixing the first mounting post 210.

[0089] In the second embodiment of the present application, as Figure 5 and Figure 6 shown, the second end 200b of the first limiting member extends from the surface of the mounting base 30 close to the pressing member 100 into the mounting base 30 and penetrates through the mounting base 30. Optionally, a third anti-disengagement member 260 can be provided on the second end 200b of the first limiting member. The third anti-disengagement member 260 is located on the side of the mounting base 30 away from the pressing member 100 and is fixedly connected to the first mounting post 210. The third anti-disengagement member 260 can be a sealing nut, which limits the position of the first mounting post 210; the sealing nut can also prevent the end of the first mounting post 210 from being exposed, causing scratches, etc.

[0090] The difference between the print head fixing device 10 of the third embodiment of the present application and the print head fixing device 10 of the first embodiment of the present application lies in the structure of the first limiting member 200, the structure of the pressing member 100, and the connection manner between the first limiting member 200 and the pressing member 100.

[0091] In the third embodiment of the present application, as Figure 7 shown, Figure 7 is a partial structural schematic diagram of the print head module of the third embodiment of the present application. The first end 200a of the first limiting member is hinged to the pressing member 100; the first elastic member 300 is arranged at the hinge joint of the first limiting member 200 and the pressing member 100, so as to form a pressing force of the pressing member 100 on the mounting portion 21 of the print head 20 and the mounting base 30, making the mounting portion 21 and the mounting base 30 fit tightly. The second end of the pressing member 100 can rotate away from the mounting base 30 around the hinge joint under the action of an external force, so as to provide a disassembly and assembly space for the print head 20. The first elastic member 300 is arranged at the hinge joint and can reset the pressing member 100 after the external force is removed, so that the pressing member 100 can press the mounting portion 21 and the mounting base 30, realizing the fixation of the print head 20 and the mounting base 30.

[0092] In the third embodiment of the present application, as Figure 7As shown, the first limiting member 200 includes a second mounting post 230; the first end of the second mounting post 230 is hinged to the pressing member 100 through a connecting shaft 500; the second end of the second mounting post 230 is fixedly connected to the mounting base 30; the first elastic member 300 is sleeved outside the connecting shaft 500 and abuts against the first end of the second mounting post 230 and the pressing member 100 respectively. The connection mode between the pressing member 100, the second mounting post 230 and the first elastic member 300 is in the form of a clip. Optionally, the pressing member 100 may be a block structure, and a connecting portion 160 may extend downward on the side of the pressing member 100 close to the mounting base 30 for connecting with the second mounting post 230. The fixing mode between the second end of the second mounting post 230 and the mounting base 30 may refer to the print head fixing device 10 of the first embodiment of the present application. During the disassembly and assembly of the print head 20, the pressing member 100 can be rotated away from the mounting base 30 with the connecting shaft 500 as the rotation center to provide a disassembly and assembly space for the mounting portion 21 of the print head 20. After the external force is removed, under the action of the first elastic member 300, the pressing member 100 resets to tightly press the mounting portion 21 of the print head 20 and the mounting base 30, thereby realizing the fixation of the print head 20.

[0093] In the third embodiment of the present application, as Figure 7 shown, a limiting pin 130 is provided on the side of the pressing member 100 facing the mounting portion 21 of the print head 20; the limiting pin 130 is used to be inserted into the inside of the mounting portion 21. The limiting pin 130 is inserted into the mounting portion 21, which can accurately position the position of the mounting portion 21 and facilitate installation.

[0094] It can be understood that in the Figure 7 shown embodiment, the mounting portion 21 is embedded in the mounting base 30. In some other embodiments of the present application, the mounting portion 21 may also be partially embedded in the mounting base 30 or disposed outside the mounting base 30, which can be achieved as long as the length of the limiting pin 130 is adjusted. The present application does not make any limitation in this regard.

[0095] The difference between the print head fixing device 10 of the fourth embodiment of the present application and the print head fixing device 10 of the first embodiment of the present application lies in that the structures of the pressing member 100 and the first limiting member 200 are different.

[0096] In the fourth embodiment of the present application, as Figure 8 shown, Figure 8It is a partial structural schematic diagram of the print head module according to the fourth embodiment of the present application. The second end 200b of the first limiting member bypasses the surface of the mounting base 30 close to the pressing member 100 and is fixedly connected to the side surface of the mounting base 30 or the surface of the mounting base 30 away from the pressing member 100. In this way, the space occupied by the first limiting member 200 in the direction of the mounting base 30 close to the pressing member 100 can be reduced, which is beneficial to the arrangement of the pressing member 100 on the mounting base 30.

[0097] In the fourth embodiment of the present application, as Figure 8 shown, the pressing member 100 includes a third mounting post 110 and a pressing portion 120; the first end of the third mounting post 110 is slidably connected to the first end 200a of the first limiting member; the second end of the third mounting post 110 passes through the first end 200a of the first limiting member; the pressing portion 120 is provided at the second end of the third mounting post 110; the first elastic member 300 is sleeved outside the third mounting post 110, and both ends of the first elastic member 300 are respectively abutted against the first end 200a of the first limiting member and the pressing portion 120, so that the pressing portion 120 is pressed against the print head 20. Since the first elastic member 300 can deform, during the disassembly and assembly of the print head 20, an external force can be applied to the pressing member 100 to move it in a direction away from the mounting base 30, so that the first elastic member 300 is compressed, providing a moving space for the mounting portion 21 of the print head 20; after removing the external force, the pressing portion 120 is reset under the action of the first elastic member 300 and can press the mounting portion 21 and the mounting base 30 tightly.

[0098] In the fourth embodiment of the present application, as Figure 8 shown, the pressing member 100 further includes a second anti - detachment member 150; the second anti - detachment member 150 is provided at the first end of the third mounting post 110, on the side of the first end 200a of the first limiting member away from the first elastic member 300. The second anti - detachment member 150 and the pressing portion 120 have a limiting effect on the third mounting post 110, enabling it to be connected to the first limiting member 200.

[0099] In the fourth embodiment of the present application, as Figure 8 shown, the first limiting member 200 includes an auxiliary connecting member 240; the auxiliary connecting member 240 is U - shaped, the first end of the auxiliary connecting member 240 is elastically connected to the pressing member 100, and the second end of the auxiliary connecting member 240 is connected to the mounting base 30. In this way, without drilling holes on the surface of the mounting base 30 close to the pressing portion 120 and on the pressing member 100, the connection of the pressing member 100 to the mounting portion 21 and the mounting base 30 can be realized. The overall structure has higher rigidity, is not easily damaged, and the setting position of the pressing portion 120 can have a certain adjustment space, with higher versatility.

[0100] Optionally, the second end of the auxiliary connecting member 240 can be fixedly connected to the side of the mounting base 30 away from the pressing member 100 through a third anti-disengagement member 260. The third anti-disengagement member 260 can be a screw and is threadedly connected to the mounting base 30.

[0101] In some other embodiments of the present application, the second end of the auxiliary connecting member 240 can also be fixedly welded to the mounting base 30.

[0102] In the fourth embodiment of the present application, as Figure 8 shown, the pressing portion 120 and the first limiting member 200 are arranged at intervals. They do not need to cooperate, and the requirement for processing accuracy is lower, which is convenient for processing.

[0103] The difference between the print head fixing device 10 of the fifth embodiment of the present application and the print head fixing device 10 of the fourth embodiment of the present application lies in the different structures of the first limiting member 200.

[0104] In the fifth embodiment of the present application, as Figure 9 shown, Figure 9 is a partial structural schematic diagram of the print head module of the fifth embodiment of the present application. The auxiliary connecting member 240 includes a first connecting member 241 and a second connecting member 242; the first end of the first connecting member 241 (the first end 200a of the first limiting member) and the second end of the second connecting member 242 (the second end 200b of the first limiting member) are respectively connected to the pressing member 100 and the mounting base 30; the second end of the first connecting member 241 and the first end of the second connecting member 242 are rotatably connected, so that the first connecting member 241 can drive the pressing member 100 to approach or move away from the print head 20. Here, the rotational connection can be horizontal or vertical; when rotating horizontally, the pressing member 100 is rotated to other positions. After the print head 20 is arranged on the mounting base 30, the pressing member 100 is rotated back above the mounting portion 21 of the print head 20 so that it can press the mounting portion 21 and the mounting base 30; when rotating vertically, the pressing member 100 rotates away from the mounting base 30. After the print head 20 is arranged on the mounting base 30, the pressing member 100 is rotated back to press the mounting portion 21 and the mounting base 30. Optionally, the first connecting member 241 and the second connecting member 242 can be hinged together.

[0105] The difference between the print head fixing device 10 of the sixth embodiment of the present application and the print head fixing device 10 of the fourth embodiment of the present application lies in whether there is a support member 250.

[0106] In the sixth embodiment of the present application, as Figure 10 shown, Figure 10Schematic diagram of a partial structure of the print head module according to the sixth embodiment of the present application. The pressing member 100 is disposed at an interval from the mounting base 30, and the pressing portion 120 is disposed at an interval from the first limiting member 200. The first limiting member 200 further includes a supporting member 250. The supporting member 250 is located between the pressing member 100 and the mounting base 30 and is used to cooperate with the first elastic member 300 and the first supporting member 250 so that the pressing member 100 presses tightly against the print head 20. The height of the supporting member 250 is adapted to the height of the mounting portion 21 of the print head 20. By replacing the supporting members 250 with different heights, it can be adapted to different models of print heads 20, and the versatility is higher. The structure of the supporting member 250 in the embodiment of the present application can be the same as that of the supporting member 250 in the second embodiment of the present application.

[0107] The difference between the print head fixing device 10 according to the seventh embodiment of the present application and the print head fixing device 10 according to the sixth embodiment of the present application lies in whether the pressing portion 120 and the first limiting member 200 (auxiliary connecting member 240) are disposed at an interval.

[0108] In the seventh embodiment of the present application, as Figure 11 shown, Figure 11 Schematic diagram of a partial structure of the print head module according to the seventh embodiment of the present application. The first end of the pressing portion 120 is sleeved outside the first limiting member 200 and is slidably connected to the first limiting member 200. The second end of the pressing portion 120 is used to press the mounting portion 21 of the print head 20. In this way, the first limiting member 200 has a limiting effect on the pressing portion 120, which is convenient for the precise positioning of the pressing portion 120.

[0109] An embodiment of the second aspect of the present application provides a print head module. The print head module includes a print head 20, a mounting base 30, and the print head fixing device 10 according to any of the above embodiments. The print head fixing device 10 is used to movably connect the print head 20 to the mounting base 30.

[0110] The print head module according to the embodiment of the present application includes a print head 20, a mounting base 30, and the print head fixing device 10 according to any of the above embodiments. During the multiple disassembly and assembly processes of the print head 20, only the first time requires the installation of the print head fixing device 10 and the mounting base 30. In subsequent times, only an external force needs to be applied to the pressing member 100 to lift or lower it to achieve the disassembly and assembly of the print head 20, without tightening and loosening screws, thereby improving the disassembly and assembly efficiency of the print head 20.

[0111] In the first embodiment of the present application, return to reference Figure 1 and Figure 2, an installation base 30 is provided with an installation space for placing a print head 20, and the installation space is located at the middle position of the installation base 30; a print head fixing device 10 is arranged at the edge position of the installation base 30. In this way, it is convenient to fix the print head 20 and the installation base 30.

[0112] In the first embodiment of the present application, as Figure 1 and Figure 2 shown, the installation space includes an installation groove 32 and an installation through hole 31; the installation through hole 31 is located at the middle position of the installation groove 32; the print head 20 further includes a printing part 22 fixedly connected to the installation part 21; the printing part 22 is arranged in the installation through hole 31; the installation part 21 of the print head 20 is embedded in the installation groove 32. The printing part 22 is used for ejecting ink or dyes, etc., and both ends of the printing part 22 are installation parts 21 for fixing with the installation base 30. The printing part 22 is arranged in the installation through hole 31; the installation part 21 of the print head 20 is embedded in the installation groove 32, and the embedding method saves more space and is convenient for quick positioning during installation.

[0113] In the first embodiment of the present application, as Figure 1 shown, the number of the installation parts 21 of the print head 20 is two, which are respectively arranged on opposite sides of the printing part 22; the number of the print head fixing devices 10 is two, which are arranged in one-to-one correspondence with the two installation parts 21. Arranging two print head fixing devices 10 can improve the connection reliability. Optionally, the two print head fixing devices 10 can be arranged in a diagonal direction, which is beneficial to uniformly press the print head 20 and prevent local stress concentration.

[0114] In the second embodiment of the present application, as Figure 5 and Figure 6 shown, the installation space includes an installation through hole 31; the print head 20 further includes a printing part 22 fixedly connected to the installation part 21; the printing part 22 is arranged in the installation through hole 31; the installation part 21 of the print head 20 is installed outside the installation base 30; arranged in this way, at least part of the structure of the print head 20 is embedded into the installation base 30, which saves more space and is convenient for quick positioning during installation.

[0115] An embodiment of the third aspect of the present application provides a printing device, and the printing device includes the print head module of any of the above embodiments.

[0116] The printing device of the embodiment of the present application includes the print head module of any of the above embodiments. During multiple disassembly and assembly processes of the print head 20, only the first time is it necessary to install the print head fixing device 10 and the installation base 30. In subsequent times, only an external force needs to be applied to the pressing member 100 to lift or lower it to achieve the disassembly and assembly of the print head 20, without the need to tighten and loosen screws, thereby improving the disassembly and assembly efficiency of the print head 20.

[0117] The above are only the preferred embodiments of the present utility model and are not intended to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model are all included within the protection scope of the present utility model.

Claims

1. A print head fixing device, used to fix a print head (20) on a mounting base (30), characterized in that: The print head fixing device comprises: A pressing member (100) for pressing the mounting portion (21) of the print head (20); A first limiting member (200) is fixedly connected to the mounting base (30); the first limiting member (200) is used to movably mount the pressing member (100) on the mounting base (30); A first elastic member (300) is arranged at one end of the pressing member (100) away from the mounting portion (21); the first elastic member (300) is used to cooperate with the first limiting member (200), so that the pressing member (100) forms a pressing force on the mounting portion (21) of the print head (20) and the mounting base (30) under the action of the first elastic member (300), so that the mounting portion (21) and the mounting base (30) are tightly fitted.

2. The print head fixing device according to claim 1, characterized in that: The first end (200a) of the first limiting member is elastically connected to the pressing member (100); the second end (200b) of the first limiting member is fixedly connected to the mounting base (30); The first elastic member (300) is located between the first end (200a) of the first limiting member and the pressing member (100), and the two ends of the first elastic member (300) are respectively in contact with the first end (200a) of the first limiting member and the pressing member (100).

3. The print head fixing device according to claim 2, characterized in that: The second end (200b) of the first limiting member extends into the mounting base (30) from a surface of the mounting base (30) close to the pressing member, and is embedded in or penetrates the mounting base (30).

4. The print head fixing device according to claim 3, characterized in that: The first position-limiting member (200) comprises: a first mounting column (210) and a first anti-slip member (220); The first anti-dropping member (220) is arranged at the first end of the first mounting column (210); The second end of the first mounting column (210) passes through the pressing piece (100) and is fixedly connected to the mounting base (30); The first elastic member (300) is sleeved on the outside of the first mounting column (210), and two ends of the first elastic member (300) are respectively in contact with the first anti-slip member (220) and the pressing member (100).

5. The print head fixing device according to claim 3, characterized in that: The first end (200a) of the first limiting member is hinged to the pressing member (100); The first elastic member (300) is arranged at the hinge between the first limiting member (200) and the pressing member (100), so that the pressing member (100) forms a pressing force on the mounting portion (21) of the print head (20) and the mounting base (30), so that the mounting portion (21) and the mounting base (30) are tightly fitted.

6. The print head fixing device according to claim 5, characterized in that: The first position-limiting member (200) comprises: a second mounting column (230); The first end of the second mounting column (230) is hingedly connected to the pressing piece (100) via a connecting shaft (500); The second end of the second mounting column (230) is fixedly connected to the mounting base (30); The first elastic member (300) is sleeved on the outside of the connecting shaft (500) and abuts against the first end of the second mounting column (230) and the pressing member (100) respectively.

7. The print head fixing device according to claim 2, characterized in that: The second end (200b) of the first limiting member bypasses the surface of the mounting base (30) close to the pressing member (100) and is fixedly connected to the side surface of the mounting base (30) or the surface of the mounting base (30) away from the pressing member (100).

8. The print head fixing device according to claim 7, characterized in that: The pressing piece (100) comprises: a third mounting column (110) and a pressing portion (120); The first end of the third mounting column (110) is slidably connected to the first end (200a) of the first limiting member; the second end of the third mounting column (110) passes through the first end (200a) of the first limiting member; The pressing portion (120) is arranged at the second end of the third mounting column (110); The first elastic member (300) is sleeved on the outside of the third mounting column (110), and two ends of the first elastic member (300) are respectively in contact with the first end (200a) of the first limiting member and the pressing portion (120), so that the pressing portion (120) is pressed against the print head (20).

9. The print head fixing device according to claim 8, characterized in that: The pressing piece (100) further comprises: a second anti-slip piece (150); The second anti-dropping member (150) is arranged at the first end of the third mounting column (110), and is located on a side of the first end (200a) of the first limiting member away from the first elastic member (300).

10. The print head fixing device according to any one of claims 7 to 9, characterized in that: The first limiting member (200) comprises: an auxiliary connecting member (240); The auxiliary connecting piece (240) is U-shaped, a first end of the auxiliary connecting piece (240) is elastically connected to the pressing piece (100), and a second end of the auxiliary connecting piece (240) is connected to the mounting base (30).

11. The print head fixing device according to claim 10, characterized in that: The auxiliary connecting piece (240) comprises: a first connecting piece (241) and a second connecting piece (242); The first end of the first connecting member (241) and the second end of the second connecting member (242) are respectively connected to the pressing member (100) and the mounting base (30); the second end of the first connecting member (241) and the first end of the second connecting member (242) are rotatably connected so that the first connecting member (241) can drive the pressing member (100) to approach or move away from the print head (20).

12. The print head fixing device according to claim 4 or 8, characterized in that: The first limiting member (200) further includes: a supporting member (250); The support member (250) is located between the pressing member (100) and the mounting base (30), and is used to cooperate with the first elastic member (300) so that the pressing member (100) is pressed tightly against the print head (20).

13. The print head fixing device according to claim 12, characterized in that: The supporting member (250) is a second elastic member (251), a rigid member (252), or a combination of the second elastic member (251) and the rigid member (252).

14. The print head fixing device according to claim 7, characterized in that: The pressing portion (120) and the first limiting member (200) are arranged at an interval; Alternatively, the first end of the pressing portion (120) is sleeved on the outside of the first limiting member (200) and is slidably connected to the first limiting member (200); and the second end of the pressing portion (120) is used to press the mounting portion (21) of the print head (20).

15. The print head fixing device according to claim 1, characterized in that: A limiting pin (130) is provided on one side of the pressing piece (100) facing the mounting portion (21) of the print head (20); the limiting pin (130) is used to be inserted into the interior of the mounting portion (21).

16. The print head fixing device according to claim 1, characterized in that: The print head fixing device further comprises: a second limiting member (400); The second limiting member (400) is spaced apart from the first limiting member (200); One end of the second limiting member (400) passes through the mounting portion (21) of the print head (20) and is inserted into the interior of the mounting base (30).

17. A print head module, characterized in that: The print head module comprises: a print head (20), a mounting base (30) and a print head fixing device according to any one of claims 1 to 16, wherein the print head fixing device is used to movably connect the print head (20) to the mounting base (30).

18. The print head module according to claim 17, characterized in that: The installation base (30) is provided with an installation space for placing the print head (20), and the installation space is located in the middle of the installation base (30); The print head fixing device is arranged at an edge position of the mounting base (30).

19. The print head module according to claim 18, characterized in that: The installation space comprises: an installation through hole (31); the print head (20) further comprises: a printing portion (22) fixedly connected to the installation portion (21); the printing portion (22) is arranged in the installation through hole (31); the installation portion (21) of the print head (20) is installed outside the installation base (30); Alternatively, the installation space comprises: an installation slot (32) and an installation through hole (31); the installation through hole (31) is located in the middle of the installation slot (32); the print head (20) further comprises: a printing portion (22) fixedly connected to the installation portion (21); the printing portion (22) is arranged in the installation through hole (31); and the installation portion (21) of the print head (20) is embedded in the installation slot (32).

20. The print head module according to claim 19, characterized in that: The number of the mounting parts (21) of the print head (20) is two, which are respectively arranged on two opposite sides of the printing part (22); The number of the print head fixing devices is two, and they are arranged in one-to-one correspondence with the two mounting parts (21).

21. A printing device, characterized in that: The printing device comprises the print head module according to any one of claims 17 to 20.

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