Printing head adjusting device and printer

Abstract

The utility model relates to the technical field of printers, in particular to a printing head adjusting device and a printer. The printing head adjusting device comprises a rack, a driving unit and a movable part. The driving unit is connected with the rack, the movable part is movably connected with the rack, and the driving unit is in transmission connection with the movable part; wherein the movable part is used for abutting against the printing head mounting plate and driving the printing head mounting plate to move relative to the printing rubber roller under the driving action of the driving unit, so that the printing head on the printing head mounting plate is in contact with or away from the printing rubber roller. The printing head adjusting device is applied to the printer, is simple in structure and low in manufacturing and using cost, and can reduce abrasion of the printing head, so that the service life of the printing head is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a printer technical field, specifically, relate to a kind of print head adjusting device and printer. BACKGROUND

[0002] At present, the print head in printer is in the process of use, it exists friction loss, and the service life is short. INVENTION CONTENTS

[0003] The utility model discloses a kind of print head adjusting device and printer, its simple structure, the cost of manufacture and use are low, and the wear of print head can be reduced, to increase the service life of print head.

[0004] The embodiment of the utility model can be realized as follows:

[0005] First, the utility model provides a kind of print head adjusting device, print head adjusting device includes rack, drive unit and movable piece;

[0006] Drive unit is connected with rack, movable piece is movably connected with rack, drive unit is transmission connection with movable piece;

[0007] Among them, movable piece is used to resist with print head mounting plate, and under the driving action of drive unit, print head mounting plate is driven to move relative to print rubber roll, to make print head on print head mounting plate contact or away from print rubber roll.

[0008] In optional implementation, movable piece includes rotating shaft and adjustment disc that is sleeved on rotating shaft, the axis of adjustment disc deviates from the axis of rotating shaft;

[0009] Drive unit includes drive motor, drive gear and transmission gear;Drive gear is connected with the output end of drive motor, transmission gear is connected with rotating shaft, and drive gear is engaged with transmission gear;

[0010] Among them, the outer periphery of adjustment disc is resisted with print head mounting plate.

[0011] In optional implementation, movable piece includes multiple adjustment discs, and multiple adjustment discs are arranged along the axis direction of rotating shaft.

[0012] In optional implementation, adjustment disc is circular or oval.

[0013] In optional implementation, print head adjusting device further includes detection unit, detection unit is connected with rack, and detection unit is used to detect the position of movable piece or print head mounting plate.

[0014] In an optional embodiment, the detection unit comprises a grating sensor connected to the rack and a grating connected to the outer periphery of the adjusting disc.

[0015] The grating sensor is used to detect the position of the grating.

[0016] In a second aspect, the utility model provides a printer, printer includes main body, print head mounting plate, print head, printing rubber roller and above -mentioned print head adjusting device,

[0017] The main body is internally provided with a channel; the print head mounting plate is movably arranged in the channel, and the print head is connected with the print head mounting plate; the printing rubber roller is arranged in the channel;

[0018] The print head adjusting device is connected with the main body, and is used to drive the print head mounting plate to move relative to the printing rubber roller, so that the print head on the print head mounting plate contacts or moves away from the printing rubber roller.

[0019] In an optional embodiment, an elastic member is arranged in the channel, the elastic member is connected with the print head mounting plate, and is used to make the print head mounting plate have a tendency to move towards the printing rubber roller.

[0020] In an optional embodiment, the printer further comprises a detection sensor connected with the print head mounting plate, and the detection sensor is used to detect the distance between the print head mounting plate and the printing rubber roller.

[0021] In an optional embodiment, the printer further comprises a contact sensor connected with the print head, and the contact sensor is used to detect the contact state of the print head and the printing rubber roller.

[0022] The print head adjusting device and the printer provided by the embodiments of the utility model have the following beneficial effects:

[0023] The print head adjusting device comprises a rack, a driving unit and a movable member; the driving unit is connected with the rack, the movable member is movably connected with the rack, and the driving unit is in transmission connection with the movable member;

[0024] The movable member is used to abut against the print head mounting plate, and drives the print head mounting plate to move relative to the printing rubber roller under the driving action of the driving unit, so that the print head on the print head mounting plate contacts or moves away from the printing rubber roller. Therefore, by adopting the above arrangement, the driving unit can drive the movable member to move, and then the position of the print head mounting plate abutting against the movable member can be adjusted, so that the print head on the print head mounting plate contacts or moves away from the printing rubber roller, and then the printer can be in the state that the print head and the rubber roller contact to complete the printing of the ticket surface when printing is needed, and the print head and the rubber roller are in the state of separation when the ticket surface does not need to be printed.

[0025] In conclusion, the print head adjusting device is applied to the printer, has simple structure, low manufacturing and using cost, and can reduce the wear of the print head, thereby increasing the service life of the print head. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0027] Figure 1 The structural schematic diagram of the print head adjusting device provided for the present embodiment;

[0028] Figure 2 The structural schematic diagram of the printer provided for the present embodiment.

[0029] Icon: 100-print head adjusting device; 110-frame; 120-driving unit; 130-moving part; 131-rotating shaft; 132-adjusting disc; 121-driving motor; 122-driving gear; 123-transmission gear; 140-detecting unit; 141-optical grating sensor; 142-optical grating; 200-printer; 210-main body; 220-print head mounting plate; 230-print head; 240-printing rubber roller; 201-channel. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0032] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0033] In the description of the utility model, it needs to be explained that if the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the utility model product is used, it is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0034] In addition, if the terms "first", "second" and the like are used only to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] It should be noted that the features in the embodiments of the utility model can be combined with each other without conflict.

[0036] The inventor has found through research that the existing print head and rubber roller in the printer are in a state of constant contact, which causes friction between the print head and the rubber roller due to relative movement when the printer is in a paper feeding state, resulting in friction loss and reducing the service life of the print head.

[0037] Based on the above reasons, please refer to Figure 1 and Figure 2 The print head adjusting device 100 comprises a rack 110, a driving unit 120 and a movable piece 130.

[0038] The driving unit 120 is connected with the rack 110, the movable piece 130 is movably connected with the rack 110, and the driving unit 120 is in transmission connection with the movable piece 130.

[0039] The movable piece 130 is used to abut against the print head mounting plate 220 and drive the print head mounting plate 220 to move relative to the printing rubber roller 240 under the driving action of the driving unit 120, so that the print head 230 on the print head mounting plate 220 is in contact with or away from the printing rubber roller 240.

[0040] Please refer to Figure 1 and Figure 2 The working principle of the print head adjusting device 100 is as follows:

[0041] The printing head adjusting device 100 comprises a frame 110, a driving unit 120 and a movable element 130; the driving unit 120 is connected with the frame 110, the movable element 130 is movably connected with the frame 110, and the driving unit 120 is in transmission connection with the movable element 130; wherein the movable element 130 is used for abutting against the printing head mounting plate 220 and driving the printing head mounting plate 220 to move relative to the printing rubber roller 240 under the driving action of the driving unit 120, so as to make the printing head 230 on the printing head mounting plate 220 contact or move away from the printing rubber roller 240. Thus, through the above setting mode, the driving unit 120 can drive the movable element 130 to move, and then the position of the printing head mounting plate 220 abutting against the movable element 130 can be adjusted, so as to make the printing head 230 on the printing head mounting plate 220 contact or move away from the printing rubber roller 240.

[0042] Further, through the above mode, the contact state of the printing head 230 and the printing rubber roller 240 can be adjusted according to the working state of the printer 200, that is, the printing head 230 and the rubber roller are in contact only when the printer 200 needs to print, and the printing head 230 and the rubber roller are in a disengaged state when the printer 200 does not need to print; thus, through the above mode, the printing head 230 and the rubber roller are in a disengaged state when the printer 200 is in the paper feeding state and has not started to print, so as to reduce the abrasion of the printing head 230; and when the printer 200 starts to print, the printing head 230 and the rubber roller are in contact.

[0043] In summary, the printing head adjusting device 100 is applied to the printer 200, has simple structure, low manufacturing and using cost, and can reduce the abrasion of the printing head 230, thereby increasing the service life of the printing head 230.

[0044] Further, please refer to Figure 1 and Figure 2 The driving unit 120 and the movable element 130 are configured to adjust the position of the printing head mounting plate 220, so as to make the printing head mounting plate 220 change position relative to the printing rubber roller 240, thereby adjusting the contact state of the printing head 230 and the printing rubber roller 240; based on this, when the driving unit 120 and the movable element 130 are configured, there are various setting modes, for example, the printing head mounting plate 220 can be driven to move linearly or rotate, and the movable element 130 can move linearly or rotate through the setting of eccentric structure, thereby driving the printing head mounting plate 220 to move or rotate.

[0045] In the embodiment, the eccentric structure is arranged to drive the movement of the printhead mounting plate 220. Specifically, the movable member 130 comprises a rotating shaft 131 and an adjusting disc 132 sleeved on the rotating shaft 131, and the axis of the adjusting disc 132 is offset from the axis of the rotating shaft 131.

[0046] The driving unit 120 comprises a driving motor 121, a driving gear 122 and a transmission gear 123. The driving gear 122 is connected with the output end of the driving motor 121, the transmission gear 123 is connected with the rotating shaft 131, and the driving gear 122 is engaged with the transmission gear 123.

[0047] The outer periphery of the adjusting disc 132 abuts against the printhead mounting plate 220.

[0048] That is, through the above structure, the driving motor 121 drives the driving gear 122 to rotate, thereby driving the transmission gear 123 to rotate, and driving the adjusting disc 132 connected with the rotating shaft 131 to rotate. Since the adjusting disc 132 is arranged eccentrically relative to the rotating shaft 131, the distance between the rotating shaft 131 and the printhead mounting plate 220 can be adjusted during the rotation of the adjusting disc 132, thereby driving the printhead mounting plate 220 to move, changing the relative position of the printhead 230 on the printhead mounting plate 220 relative to the printing roller 240, and changing the contact state between the printhead 230 and the printing roller 240.

[0049] In order to improve the stability of the movement of the adjusting disc 132 during the rotation, the movable member 130 comprises a plurality of adjusting discs 132, which are arranged along the axis of the rotating shaft 131 and contact the printhead mounting plate 220 at the same position of the rotating shaft 131.

[0050] In addition, based on the above-mentioned eccentric connection of the adjusting disc 132 to the rotating shaft 131, the adjusting disc 132 can be circular or elliptical. Such arrangement can improve the stability and smoothness of the contact between the adjusting disc 132 and the printhead mounting plate 220 during the rotation.

[0051] Further, please refer to Figure 1 and Figure 2In the embodiment, the printhead adjusting device 100 further comprises a detecting unit 140, which is connected with the frame 110, and the detecting unit 140 is used to detect the position of the movable part 130 or the printhead mounting plate 220. In this way, the position of the printhead 230 is determined by detecting the position of the movable part 130 or the printhead mounting plate 220, so as to control the driving motor 121 to drive the adjusting disc 132 to rotate to the position where the printhead 230 contacts with the printing rubber roller 240 when the printhead 230 is required to contact with the printing rubber roller 240 to perform printing work, and to drive the adjusting disc 132 to rotate to the position where the printhead 230 is separated from the printing rubber roller 240 when the printhead 230 is required to be separated from the printing rubber roller 240 to avoid friction loss between the printhead 230 and the printing rubber roller 240.

[0052] In the configuration of the detecting unit 140, the embodiment adopts that the detecting unit 140 comprises a grating sensor 141 connected with the frame 110 and a grating 142 connected with the outer periphery of the adjusting disc 132, and the grating sensor 141 is used to detect the position of the grating 142. That is, the relative position of the adjusting disc 132 can be determined by detecting the position of the grating 142 by the grating sensor 141.

[0053] Based on the above printhead adjusting device 100, the embodiment further provides a printer 200, which comprises a main body 210, a printhead mounting plate 220, a printhead 230, a printing rubber roller 240 and the above printhead adjusting device 100.

[0054] The main body 210 is internally provided with a channel 201, the printhead mounting plate 220 is movably arranged in the channel 201, and the printhead 230 is connected with the printhead mounting plate 220, and the printing rubber roller 240 is arranged in the channel 201.

[0055] The printhead adjusting device 100 is connected with the main body 210, and is used to drive the printhead mounting plate 220 to move relative to the printing rubber roller 240, so as to make the printhead 230 on the printhead mounting plate 220 contact with or separate from the printing rubber roller 240.

[0056] The printer 200 can adjust the contact state between the print head 230 and the printing rubber roller 240 according to the working state of the printer 200 by using the print head adjusting device 100, i.e., the print head 230 and the rubber roller are in contact only when the printer 200 needs to print, and the print head 230 and the rubber roller are in a disengaged state when the printer 200 does not need to print. In this way, the print head 230 and the rubber roller are in a disengaged state when the printer 200 is printing paper but has not started printing, so that the wear of the print head 230 can be reduced. When the printer 200 starts printing, the print head 230 and the rubber roller are in contact.

[0057] Therefore, the printer 200 can reduce the wear of the print head 230, thereby increasing the service life of the print head 230 and reducing the use cost of the printer 200.

[0058] Further, please refer to Figure 1 and Figure 2 In this embodiment, the print head mounting plate 220 can be kept in contact with the movable element 130, so that the movable element 130 can drive the print head mounting plate 220 to move under the driving action of the driving unit 120. Therefore, the channel 201 is provided with an elastic element connected with the print head mounting plate 220 and used to make the print head mounting plate 220 have a tendency to move towards the printing rubber roller 240.

[0059] In addition, the print head adjusting device 100 is provided with a detection unit 140, which can detect the position of the adjusting disc 132 and control the driving motor 121 to adjust the position of the adjusting disc 132 to make the print head 230 contact or disengage from the printing rubber roller 240 according to the requirement. Since the print head 230 is used for a long time, the position of the print head 230 contacting or disengaging from the printing rubber roller 240 needs to be calibrated according to the use time to adjust in real time. Therefore, the printer 200 further comprises a detection sensor connected with the print head mounting plate 220, which is used to detect the distance between the print head mounting plate 220 and the printing rubber roller 240. In this way, the distance between the print head mounting plate 220 and the printing rubber roller 240 is detected, so that the distance between the print head mounting plate 220 and the printing rubber roller 240 that can be contacted is detected according to the actual use state, and the rotation of the adjusting disc 132 is feedback adjusted.

[0060] In addition, the printer 200 can further comprise a contact sensor connected with the print head 230, which is used to detect the contact state between the print head 230 and the print rubber roller 240. According to the detection of the contact state, the position of the adjusting disc 132 can be determined and calibrated, so as to improve the use precision stability of the printer 200.

[0061] Specifically, when the adjusting disc 132 rotates to the initial position, the print head 230 is in contact with the print rubber roller 240. Taking this position as an example, the initial position can be calibrated through the above-mentioned detection unit 140 in cooperation with the detection sensor or the contact sensor, so as to play a calibration role in the case of long-time use of the printer 200 and wear.

[0062] It should be noted that the sensor structure in the embodiment can adopt the prior art, and therefore, the structure setting principle is not described herein.

[0063] The above is only a specific implementation manner of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1.A print head adjusting device, characterized in that: the print head adjusting device comprises a frame, a driving unit and a movable member; the driving unit is connected with the frame, the movable member is movably connected with the frame, and the driving unit is in transmission connection with the movable member; wherein the movable member is used for abutting against a print head mounting plate, and drives the print head mounting plate to move relative to a print rubber roller under the driving action of the driving unit, so that a print head on the print head mounting plate contacts or moves away from the print rubber roller. 2.A print head adjusting device according to claim 1, characterized in that: the movable member comprises a rotating shaft and an adjusting disc sleeved on the rotating shaft, and an axis of the adjusting disc deviates from an axis of the rotating shaft; the driving unit comprises a driving motor, a driving gear and a transmission gear; the driving gear is connected with an output end of the driving motor, the transmission gear is connected with the rotating shaft, and the driving gear is in meshing with the transmission gear; wherein an outer periphery of the adjusting disc abuts against the print head mounting plate. 3.A print head adjusting device according to claim 2, characterized in that: the movable member comprises a plurality of adjusting discs, and the adjusting discs are arranged in a direction along the axis of the rotating shaft. 4.A print head adjusting device according to claim 2, characterized in that: the adjusting disc is circular or elliptical. 5.A print head adjusting device according to claim 2, characterized in that: the print head adjusting device further comprises a detection unit, the detection unit is connected with the frame, and the detection unit is used for detecting a position of the movable member or the print head mounting plate. 6.A print head adjusting device according to claim 5, characterized in that: the detection unit comprises a grating sensor connected with the frame and a grating connected with the outer periphery of the adjusting disc; the grating sensor is used for detecting the position of the grating. 7.A printer, characterized in that: the printer comprises a main body, a print head mounting plate, a print head, a print rubber roller and a print head adjusting device according to any one of claims 1-6; the main body is internally provided with a channel; the print head mounting plate is movably arranged in the channel, and the print head is connected with the print head mounting plate; the print rubber roller is arranged in the channel; the print head adjusting device is connected with the main body, and is used for driving the print head mounting plate to move relative to the print rubber roller, so that the print head on the print head mounting plate contacts or moves away from the print rubber roller. 8.A printer according to claim 7, characterized in that: the channel is internally provided with an elastic member, the elastic member is connected with the print head mounting plate, and is used for enabling the print head mounting plate to have a tendency to move towards the print rubber roller. 9.A printer according to claim 7, characterized in that: the printer further comprises a detection sensor connected with the print head mounting plate, and the detection sensor is used for detecting a distance between the print head mounting plate and the print rubber roller. 10.A printer according to claim 7, characterized in that: The printer further comprises a contact sensor connected with the print head, the contact sensor being used to detect the contact state of the print head with the printing rubber roller.

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