A print consumable support assembly, a print consumable unit, and a printer

Abstract

The application discloses a printing consumable supporting assembly, a printing consumable unit and a printer. The printing consumable supporting assembly comprises a ribbon supporting piece for supporting a ribbon winding shaft and a ribbon releasing shaft and a sheet accommodating piece for accommodating a printing sheet. After the sheet accommodating piece is fixed to the ribbon supporting piece, a front end of a sheet accommodating groove forms a sheet outlet, a lowest upper boundary of the sheet outlet is defined by an upper limiting part, a highest lower boundary of the sheet outlet is defined by a lower limiting part, the upper limiting part is formed on one of the ribbon supporting piece and the sheet accommodating piece, and the lower limiting part is formed on the other one. The printing consumable unit and the printer adopt the printing consumable supporting assembly. The technical scheme can improve the problem of poor sheet outlet of the printing sheet.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of printing devices, in particular to a printing consumable supporting assembly, a printing consumable unit and a printer. BACKGROUND

[0002] In the prior art, a printer generally comprises a printer body and a printing consumable unit. The printer body generally comprises a printer shell and a printer core accommodated in the printer shell. The printer core generally comprises a core frame, a driving roller and a heating element. The driving roller is arranged on the core frame and rotates relative to the core frame during work to drive the ribbon and the print sheet clamped between the driving roller and the heating element to move towards the outlet of the printer. The heating element is arranged on the core frame and is arranged opposite to the driving roller to apply heat to the ribbon and the print sheet clamped between the driving roller and the heating element, so that the color or ink on the ribbon is printed on the print sheet. The core frame, the driving roller and the heating element cooperate to form a containing space. The printing consumable unit is generally configured to be placed into or taken out of the containing space of the printer core to realize replacement. The printing consumable unit generally comprises a printing consumable supporting member, a ribbon winding shaft, a ribbon releasing shaft, a ribbon and a print sheet. The consumable supporting member is used to support the ribbon winding shaft and the ribbon releasing shaft and to accommodate the print sheet, and the ribbon winding shaft and the ribbon releasing shaft are used to load the ribbon, wherein the unused ribbon is mostly wound on the ribbon releasing shaft, and after being used up, the ribbon is mostly wound on the ribbon winding shaft. The ribbon winding shaft is generally arranged in front of the ribbon releasing shaft. Due to the complex structure of the printing consumable supporting member, in order to reduce the manufacturing difficulty, some manufacturers divide the printing consumable supporting member into two parts for manufacturing, one part is used to support the ribbon winding shaft and the ribbon releasing shaft, and the other part is used to accommodate the print sheet, and the two parts are fixed together after being manufactured respectively. The part accommodating the print sheet generally comprises a sheet accommodating groove, the sheet accommodating groove is used to accommodate the print sheet, and the front end of the sheet accommodating groove along the sheet outlet direction is provided with a sheet outlet opening, the sheet outlet opening is used to allow the print sheet in the sheet accommodating groove to be output to the driving roller and the heating element along the sheet outlet direction, specifically, the lowest upper boundary of the sheet outlet opening is defined by an upper limiting part, and the highest lower boundary of the sheet outlet opening is defined by a lower limiting part, the upper limiting part and the lower limiting part are arranged on the part accommodating the print sheet, and the sheet outlet opening is generally arranged to allow only one print sheet to pass, that is, the minimum width between the upper limiting part and the lower limiting part along the up-down direction is greater than or equal to the thickness of one print sheet and less than the thickness of two print sheets. In the case that the opening of the sheet accommodating groove is downward, generally, the lower limiting part is arranged above a blocking part, and the blocking part is used to block the print sheet that cannot be output from the sheet outlet opening. In order to allow the print sheet below to be aligned with the sheet outlet opening after one print sheet is output, the surface of the blocking part facing the sheet accommodating groove forms a guide inclined surface, which is inclined forward along the upward direction.

[0003] However, in the case of using the above technical solution (two-part separated printing consumable support), the printing process often finds that the printing sheet is not smooth, that is, the printing sheet in the sheet container slot cannot be smoothly output from the sheet outlet.

[0004] The above printer is generally a thermal dye sublimation printer or a thermal transfer printer. SUMMARY

[0005] The present application aims to overcome the above-mentioned defects or problems in the background art, and provide a printing consumable support assembly, a printing consumable unit and a printer, which can solve or improve the problem of printing sheet not being smooth in the background art.

[0006] To achieve the above-mentioned purpose, the following technical solutions are adopted:

[0007] The first technical solution relates to a printing consumable support assembly, which comprises: a ribbon support configured to support a ribbon take-up shaft and a ribbon release shaft for loading a ribbon; and a sheet container configured to be detachably fixed with the ribbon support and configured to have a sheet container slot for accommodating a printing sheet; wherein, after the sheet container is fixed with the ribbon support, a front end of the sheet container slot forms a sheet outlet, a lowermost upper boundary of the sheet outlet is defined by an upper limiting portion, an uppermost upper boundary of the sheet outlet is defined by a lower limiting portion, the upper limiting portion is formed on one of the ribbon support and the sheet container, and the lower limiting portion is formed on the other one.

[0008] The second technical solution is based on the first technical solution, wherein the sheet container slot is downwardly open, the upper limiting portion is formed on the sheet container, and the lower limiting portion is formed on the ribbon support.

[0009] The third technical solution is based on the second technical solution, wherein the sheet container is provided with a top wall forming an upper boundary of the sheet container slot, and the upper limiting portion is at least two in number and is formed on a front end of the top wall and is arranged in a left-right direction.

[0010] The fourth technical solution is based on the second technical solution, wherein the ribbon support is provided with a cross beam extending in a left-right direction, the cross beam is provided with a supporting portion, a blocking portion and the lower limiting portion, the supporting portion is provided with an upward supporting surface for supporting a front end of the printing sheet, the blocking portion is provided with a guide inclined surface adjacent to the supporting surface, the guide inclined surface is inclined forwardly in an upward direction; and the lower limiting portion is formed on a top end of the blocking portion.

[0011] The fifth technical solution is based on the fourth technical solution, wherein the number of the lower limit parts is two, and the lower limit parts are arranged along the left-right direction; and a distance exists between the lower limit parts and the corresponding side ends of the cross beam along the left-right direction.

[0012] The sixth technical solution is based on the first technical solution, wherein the color band supporting part and the sheet material containing part are detachably fixed along the front-back direction by means of elastic clamping.

[0013] The seventh technical solution is based on the sixth technical solution, wherein the color band supporting part is provided with a first limit surface and a second limit surface in the front direction, the sheet material containing part is provided with a first elastic clamping claw and a second elastic clamping claw, the first elastic clamping claw is adapted to be elastically deformed along the up-down direction and is provided with a third limit surface adapted to be limitedly matched with the first limit surface along the front-back direction, and the second elastic clamping claw is adapted to be elastically deformed along the left-right direction and is provided with a fourth limit surface adapted to be limitedly matched with the second limit surface along the front-back direction.

[0014] The eighth technical solution is based on the sixth technical solution, wherein the color band supporting part and the sheet material containing part are limitedly matched along the up-down direction and the left-right direction by means of plug-in matching.

[0015] The ninth technical solution is based on the first technical solution, wherein the sheet material containing part is further provided with a shielding part, and after the sheet material containing part is fixed with the color band supporting part, the shielding part is close to the second supporting part and is adapted to partially shield the color band release shaft supported by the second supporting part.

[0016] The tenth technical solution relates to a printing consumable unit, which comprises a color band winding shaft, a color band release shaft, a color band, a printing sheet material, and a printing consumable supporting assembly as described in any one of the first to ninth technical solutions; the color band winding shaft and the color band release shaft carry the color band; the color band supporting part supports the color band winding shaft and the color band release shaft, the sheet material containing part contains the printing sheet material; and the color band supporting part and the sheet material containing part are fixed.

[0017] The eleventh technical solution relates to a printer, which comprises a printer body and a printing consumable unit as described in the tenth technical solution, and the printer body is adapted to contain the printing consumable unit.

[0018] Compared with the prior art, the above-mentioned solutions have the following beneficial effects:

[0019] The applicant found through long-term observation, research and experiment that the reason for the poor ejection of the print sheet in the prior art is that the parting line formed on the guide slope of the blocking portion blocks the print sheet in the sheet accommodating groove from smoothly reaching the ejection opening. In the first technical solution, the upper and lower limit portions are formed on the ribbon supporting member and the sheet accommodating member, respectively, so that no parting line is formed on the lower limit portion, thereby improving the problem of poor ejection of the print sheet.

[0020] In the second technical solution, when the sheet accommodating groove opening is downward, the upper limit portion should generally be located on the same horizontal plane as the upper boundary of the sheet accommodating groove of the sheet accommodating member, so the upper limit portion should be formed on the sheet accommodating member, and the lower limit portion should be formed on the ribbon supporting member.

[0021] Further observation, experiment and research found that another important reason for the poor ejection of the print sheet is the change in the minimum width of the ejection opening in the up-down direction during the operation of the printer. Specifically, due to the heat generated by the heating member or other factors during the operation of the printer, the upper limit portion of the print consumable unit in the closed accommodating space expands due to heat, and since the upper limit portion in the prior art spans the ejection opening, the middle of the upper limit portion bends downward due to gravity, thereby reducing the minimum gap width of the ejection opening and causing poor ejection. To solve this problem, the third technical solution sets the number of upper limit portions to at least two, and each upper limit portion is arranged in the left-right direction. In this way, each upper limit portion has a smaller deformation amount after expansion and can expand and deform in the left-right direction, avoiding the defect that the upper limit portion spans the ejection opening and bends downward in the middle due to a large deformation amount and gravity, thereby reducing the change amount of the gap width of the ejection opening, making ejection easier, and further improving the problem of poor ejection of the print sheet.

[0022] In the fourth technical solution, the support portion of the cross beam can support the front end of the print sheet, so that the front end of the print sheet is less likely to bend downward, further improving the problem of poor ejection. The blocking portion is used to block each print sheet below the print sheet ready to be ejected, and the guide slope is inclined forward in the upward direction, which is conducive to guiding the print sheet into the ejection opening. The lower limit portion is formed at the top end of the blocking portion, which can accurately control the gap width between the upper and lower limit portions, and is conducive to the smooth output of the print sheet from the ejection opening.

[0023] Further observation, experiment and research found that another important reason for the poor printing sheet ejection is the change of the printing sheet during the operation of the printer. Specifically, due to factors such as moisture or heat, the front end of the printing sheet deforms and is no longer flat in the printing consumable unit, the projection of the front end of the printing sheet in the front-rear direction becomes wider along the up-down direction, causing poor ejection of the printing sheet, and the left front end and the right front end of the printing sheet are more prone to deformation and bending downward. In order to solve the problem of poor ejection of the printing sheet, in the fifth technical solution, a certain distance is provided between the lower limit portion and the side end of the corresponding beam, so that the part of the left and right sides of the front end of the printing sheet prone to downward bending can avoid the lower limit portion, which is beneficial to further improve the problem of poor ejection of the printing sheet.

[0024] In the sixth technical solution, the ribbon supporting piece and the sheet containing piece are quickly and detachably fixed by elastic clamping, which makes the assembly more convenient and efficient.

[0025] The seventh technical solution is a specific embodiment of the sixth technical solution. Since the directions of elastic deformation of the first and second elastic clamping jaws are perpendicular to each other, one of the ribbon supporting piece and the sheet containing piece is less likely to be detached from the clamping when subjected to external force, avoiding the connection failure between the ribbon supporting piece and the sheet containing piece. Specifically, when subjected to external force in the up-down direction, the second elastic clamping jaw will not be detached from the clamping, and when subjected to external force in the left-right direction, the first elastic clamping jaw will not be detached from the clamping.

[0026] In the eighth technical solution, the ribbon supporting piece and the sheet containing piece are limited and matched in the up-down direction and the left-right direction by plug-in cooperation, which is beneficial to supplement the inevitable cooperation gap due to elastic clamping cooperation, and makes the fixation of the ribbon supporting piece and the sheet containing piece more firm.

[0027] The applicant found in the study of the prior art that when the printing consumable unit is loaded into the printer body, the ribbon is mostly wound on the ribbon release shaft and is prone to collide with the wall of the containing space of the printer body, thereby causing the ribbon to be skewed. In order to solve this problem, a shade portion is generally provided outside the ribbon release shaft, which is covered on the ribbon release shaft to prevent the ribbon from colliding with the wall of the containing space, thereby avoiding the skewing of the ribbon. However, since the ribbon needs to be loaded on the ribbon release shaft before the shade portion is installed, an additional process of installing the shade portion is added. In the ninth technical solution, when the shade portion is provided on the sheet containing piece, the shade portion can shield the ribbon release shaft by only fixing the sheet containing piece and the ribbon supporting piece, thereby reducing the process of installing the shade portion, increasing the assembly efficiency, and reducing the assembly cost.

[0028] The printing consumable unit in the tenth technical solution and the printer in the eleventh technical solution have the effects of the above technical solutions. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments, the following briefly introduces the drawings needed to be used:

[0030] Figure 1 The printing consumable supporting assembly in Embodiment One Figure 1 ;

[0031] Figure 2 The printing consumable supporting assembly in Embodiment One Figure 2 ;

[0032] Figure 3 The printing consumable supporting assembly in Embodiment One Figure 3 ;

[0033] Figure 4 The printing consumable supporting assembly in Embodiment One ;

[0034] Figure 5 The printing consumable supporting assembly in Embodiment One

[0035] Figure 6 The printing consumable supporting assembly in Embodiment One Figure 5 ;

[0036] Figure 7 The printing consumable supporting assembly in Embodiment One Figure 6 ;

[0037] Figure 8 The printing consumable unit is a perspective exploded view.

[0038] Explanation of Main Reference Numerals:

[0039] Printing consumable supporting assembly 1, ribbon supporting piece 2, sheet accommodating piece 3, first supporting part 4, second supporting part 5, ribbon winding shaft 6, ribbon releasing shaft 7, printing sheet 8, cross beam 9, supporting part 10, blocking part 11, guide inclined surface 12, lower limit part 13, first limit surface 14, second limit surface 15, first insertion slot 16, second insertion slot 17, third insertion slot 18, sheet accommodating slot 19, top wall 20, upper limit part 21, first elastic clamping jaw 22, third limit surface 23, second elastic clamping jaw 24, fourth limit surface 25, first insertion block 26, second insertion block 27, third insertion block 28, shielding part 29, sheet outlet 30, printing consumable unit 31, ribbon 32, supporting sheet 33. DETAILED DESCRIPTION

[0040] In the claims and specification, unless otherwise stated, the terms "first", "second", or "third" and the like, are used merely as identifiers to distinguish one object from another, and are not intended to signify a particular order or sequence.

[0041] In the claims and specification, unless otherwise stated, the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "back", "left", "right", "clockwise", "counterclockwise", and the like indicate directions or positional relationships based on the orientations and positions shown in the drawings, and are merely used to simplify the description, and do not imply that the device or element must have a particular orientation or be constructed and operated in a particular orientation.

[0042] In the claims and specification, unless otherwise stated, the terms "fixedly connected" or "fixed connection" should be interpreted broadly, that is, any connection mode between the two without displacement relationship and relative rotation relationship, that is, it includes non-detachable fixed connection, detachable fixed connection, integration and fixed connection through other devices or elements.

[0043] In the claims and specification, unless otherwise stated, the terms "include", "have" and their variants mean "contain but not limited to".

[0044] In the claims and specification, unless otherwise stated, the term "elastic deformation in the direction" refers to the elastic flexing direction of the pawl body of the elastic pawl, which is generally perpendicular to the extension direction of the pawl body. The elastic flexing of the pawl body mainly functions to make the pawl head pass over the protrusion until the elastic flexing of the pawl body recovers, so that the pawl head hooks the protrusion.

[0045] In the claims and specification, unless otherwise stated, the term "insertion fitting" refers to a connection mode in which a part of one object is inserted into a part of another object.

[0046] In the claims and specification, unless otherwise stated, the term "limiting fitting" refers to a fitting mode in which the two cannot be displaced relative to each other in a particular direction.

[0047] Embodiment one

[0048] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings.

[0049] Reference Figure 1 , Figure 1 A print consumable support assembly 1 in the embodiments is shown. As shown, the print consumable support assembly 1 includes a ribbon support 2 and a sheet accommodating member 3 adapted to be detachably fixedly connected with the ribbon support 2.

[0050] As Figure 8As shown, the ribbon support 2 is provided with a first support portion 4 for supporting the ribbon winding shaft 6 and a second support portion 5 for supporting the ribbon releasing shaft 7, the first support portion 4 being located in front of the second support portion 5 along the ejection direction of the print sheet 8. The ribbon winding shaft 6 and the ribbon releasing shaft 7 are used for loading the ribbon 32. As shown in Figure 1 、 Figure 2 and Figure 3 As shown, between the first support portion 4 and the second support portion 5, the ribbon support 2 is further provided with a crossbeam 9 extending along the left-right direction. As shown in Figure 2 and Figure 3 The crossbeam 9 is provided with a support portion 10, a blocking portion 11 and a lower limiting portion 13. Referring to Figure 5 、 Figure 6 and Figure 7 As shown in Figure 7 The support portion 10 is provided with an upward support surface for supporting the front end of the print sheet 8. The blocking portion 11 is provided with a guide slope 12 adjacent to the support surface, the guide slope 12 being inclined forwardly along the upward direction. The blocking portion 11 is used for blocking the print sheet 9 which is temporarily not desired to be ejected, and the guide slope 12 is used for guiding the print sheet 9 which is desired to be ejected to the upper side of the lower limiting portion 13. The lower limiting portion 13 is formed at the top end of the blocking portion 11. As shown in Figure 5 In the present embodiment, the number of the lower limiting portions 13 is two, which are arranged along the left-right direction, and there is a distance between the lower limiting portions 13 and the side ends of the crossbeam 9 corresponding to the left-right direction. As shown in Figure 2 The ribbon support 2 is further provided with a first limiting surface 14 forwardly at the right side of the upper surface thereof. As shown in Figure 3 The ribbon support 2 is further provided with a protrusion at the left side outer surface thereof, the protrusion being provided with a second limiting surface 15 forwardly. As shown in Figure 3 At the position close to the crossbeam 9 along the front-back direction, the right inner side of the ribbon support 2 is provided with a first insertion slot 16 opening rearwardly. As shown in Figure 2 At the position close to the crossbeam 9 along the front-back direction, the left inner side of the ribbon support 2 is provided with a second insertion slot 17 opening rearwardly. As shown in Figure 2 and Figure 3 At the rear of the first insertion slot 16, the ribbon support 2 is further provided with a third insertion slot 18 opening rearwardly.

[0051] As shown in Figure 8 The sheet accommodating member 3 is provided with a sheet accommodating groove 19 for accommodating the print sheet 9. In the present embodiment, as shown in Figure 1 The sheet accommodating groove 19 opens downwardly, and the sheet accommodating member 3 is provided with a top wall 20 forming the upper boundary of the sheet accommodating groove 19. The top wall 20 is formed with an upper limiting portion 21 at the front end thereof along the ejection direction of the print sheet 8, and the number of the upper limiting portions 21 can be set to be at least two and arranged along the left-right direction. In the present embodiment, as shown in Figure 4As shown, the number of upper limit portions 21 is two, which are respectively arranged on the left and right sides of the front end of the top wall 29 with a spacing. As shown Figure 1 As shown, in this embodiment, the front end of the right upper side of the sheet accommodating member 3 is provided with a first elastic clamping jaw 22 extending forward, which is adapted to elastically deform along the up-down direction and is provided with a third limiting surface 23 adapted to limit and cooperate with the first limiting surface 14 along the front-back direction. As shown Figure 2 As shown, the first elastic clamping jaw 22 is adapted to elastically deform along the up-down direction and is provided with a third limiting surface 23 adapted to limit and cooperate with the first limiting surface 14 along the front-back direction. As shown Figure 1 As shown, the left side surface of the sheet accommodating member 3 is provided with a second elastic clamping jaw 23 extending forward, which is adapted to elastically deform along the left-right direction and is provided with a fourth limiting surface 25 adapted to limit and cooperate with the second limiting surface 15 along the front-back direction. The sheet accommodating member 3 is further provided with a first plug 26 adapted to be inserted and cooperated with the first slot 16 along the front-back direction outside the upper limiting portion 21 on the right side, and is further provided with a second plug 27 adapted to be inserted and cooperated with the second slot 17 along the front-back direction outside the upper limiting portion 21 on the left side, and is further provided with a third plug 28 adapted to be inserted and cooperated with the third slot 18 along the front-back direction behind the first plug 26. The sheet accommodating member 3 is further provided with a cover portion 29 located above the top wall 20.

[0052] The ribbon supporting member 2 and the sheet accommodating member 3 are adapted to be detachably fixed along the front-back direction by elastic clamping, and are further adapted to be limited and cooperated along the up-down direction and the left-right direction by insertion and cooperation. Specifically, the sheet accommodating member 3 and the ribbon supporting member 2 are brought close to each other along the front-back direction, the jaw body of the first elastic clamping jaw 22 deforms upward, the third limiting surface 23 of the jaw head passes over the first limiting surface 14, until the jaw body of the first elastic clamping jaw 22 restores deformation, and the third limiting surface 23 of the jaw head establishes limiting cooperation with the first limiting surface 14 along the front-back direction; at the same time, the jaw body of the second elastic clamping jaw 24 deforms leftward, the fourth limiting surface 25 of the jaw head passes over the second limiting surface 15, until the jaw body of the second elastic clamping jaw 24 restores deformation, and the fourth limiting surface of the jaw head establishes limiting cooperation with the second limiting surface 15 along the front-back direction. During the insertion and cooperation along the front-back direction, the first plug 26 is inserted and cooperated with the first slot 16, the second plug 27 is inserted and cooperated with the second slot 17, and the third plug 28 is inserted and cooperated with the third slot 18, so that the ribbon supporting member 2 and the sheet accommodating member 3 cannot relatively displace along the up-down direction and the left-right direction after the insertion and cooperation is completed.

[0053] Referring to Figure 4 , Figure 5 , Figure 6 and Figure 7 , the printing consumable supporting assembly 1 after the sheet accommodating member 3 is fixed with the ribbon supporting member 2 is shown in the figure. As shown Figure 7As shown, after the sheet accommodating member 3 is fixedly connected with the ribbon supporting member 2, the front end of the sheet accommodating groove 19 along the sheet discharging direction forms a sheet discharging opening 30, the lowest upper boundary of the sheet discharging opening 30 is defined by the lower boundary of the upper limiting portion 21, and the highest upper boundary of the sheet discharging opening 30 is defined by the upper boundary of the lower limiting portion 13. The gap width of the sheet discharging opening 30 along the up-down direction is greater than or equal to the thickness of one print sheet 8 and less than the thickness of two print sheets 8, so that only a single print sheet 8 can be output through the sheet discharging opening 30. Referring to Figure 4 As shown, after the sheet accommodating member 3 is fixedly connected with the ribbon supporting member 2, the cover portion 29 is close to the second supporting portion 5 and is adapted to partially cover the ribbon releasing shaft 7 supported by the second supporting portion 5.

[0054] Figure 8 The print consumable unit 31 in the embodiment is shown. As shown, Figure 8 The print consumable unit 31 includes the ribbon winding shaft 6, the ribbon releasing shaft 7, the print sheet 8, the ribbon 32, the supporting sheet 33, and the print consumable supporting assembly 1 in the embodiment. The ribbon winding shaft 6 and the ribbon releasing shaft 7 are used to carry the ribbon 32, the ribbon 32 is mainly wound on the ribbon releasing shaft 7 when not in use, and the ribbon 32 is mainly wound on the ribbon winding shaft 6 when use is completed. In the embodiment, the first supporting portion 4 of the ribbon supporting member 2 supports the ribbon winding shaft 6, and the second supporting portion 5 of the ribbon supporting member 2 supports the ribbon releasing shaft 7. The sheet accommodating groove 19 of the sheet accommodating member 3 is used to accommodate the print sheet 8 and the supporting sheet 33 in the embodiment, the supporting sheet 33 is engaged with the side wall of the sheet accommodating groove 19, so that the sheet accommodating member 3 can support the supporting sheet 33 upwardly, and the supporting sheet 33 supports a plurality of print sheets 8 upwardly, and the front end of the print sheet 8 is supported by the supporting portion 10 of the cross beam 9. In the print consumable supporting assembly 1, when the ribbon supporting member 2 is fixedly connected with the sheet accommodating member 3, the cover portion 29 also covers the ribbon 32 wound on the ribbon releasing shaft 7. In the embodiment, the sheet discharging opening 30 and the upper limiting portion 21 are located between the ribbon winding shaft 6 and the ribbon releasing shaft 7, so that the length of the print consumable supporting assembly 1 along the front-back direction can be more compact.

[0055] The printer (not shown in the figure) in the embodiment includes a printer body and the print consumable unit 31 described above, wherein the print consumable unit 31 is adapted to be accommodated in the accommodating space of the printer body.

[0056] In the embodiment, the upper limiting portion 21 and the lower limiting portion 13 are formed on the ribbon supporting member 2 and the sheet accommodating member 3 respectively, so that the parting line is not formed on the upper limiting portion 13, thereby improving the problem of poor sheet discharging of the print sheet 8.

[0057] In the embodiment, the number of upper limit portions 21 is set to at least two, and each upper limit portion 21 is arranged at intervals in the left-right direction. In this way, each upper limit portion 21 has a small deformation amount after thermal expansion and can expand and deform in the left-right direction, avoiding the defect that the upper limit portion 21 bends and deforms downward in the middle due to a large deformation amount and the action of gravity when the upper limit portion 21 spans the sheet outlet 30, thereby reducing the amount of change in the gap width of the sheet outlet 30, making it easier to output the sheet, and further improving the problem of poor sheet output.

[0058] In the embodiment, the support portion 10 of the cross beam 9 can support the front end of the printing sheet 8, so that the front end of the printing sheet 8 is not easily bent downward, further improving the problem of poor sheet output. The blocking portion 11 is used to block each printing sheet 8 below the printing sheet 8 ready to be output, and the guide inclined surface 12 is inclined forward in the upward direction, which is conducive to guiding the printing sheet 8 into the sheet outlet. The lower limit portion 13 is formed at the top end of the blocking portion 11, which can accurately control the gap width between the upper limit portion 21 and the lower limit portion 13, and is conducive to the smooth output of the printing sheet 8 from the sheet outlet 30.

[0059] In the embodiment, a certain distance is provided between the lower limit portion 13 and the side end of the corresponding side of the cross beam 9, so that the part on both sides of the front end of the printing sheet 8 that is prone to deformation and sag can avoid the lower limit portion 13, which is conducive to further improving the problem of poor sheet output of the printing sheet 8.

[0060] In the embodiment, the ribbon supporting member 2 and the sheet containing member 3 are quickly and detachably fixed by elastic clamping, making assembly more convenient and efficient. Specifically, since the directions of elastic deformation of the first elastic clamping jaw 22 and the second elastic clamping jaw 24 are perpendicular to each other, one of the ribbon supporting member 2 and the sheet containing member 3 is less likely to be detached from clamping when subjected to external force, avoiding the connection failure between the ribbon supporting member 2 and the sheet containing member 3. Specifically, the second elastic clamping jaw 24 will not be detached from clamping when subjected to external force in the up-down direction, and the first elastic clamping jaw 22 will not be detached from clamping when subjected to external force in the left-right direction.

[0061] In the embodiment, the ribbon supporting member 2 and the sheet containing member 3 are limited and matched in the up-down direction and the left-right direction by plug-in cooperation, which is conducive to supplementing the cooperation gap inevitably caused by elastic clamping cooperation, and makes the fixation of the ribbon supporting member 2 and the sheet containing member 3 more firm.

[0062] In the embodiment, when the shading portion 29 is arranged on the sheet containing member 3, the shading portion 29 can shade the ribbon release shaft 7 after the sheet containing member 3 is fixed with the ribbon supporting member 2, thereby reducing the process specially used for assembling the shading portion 29, increasing the assembly efficiency, and reducing the assembly cost.

[0063] Embodiment Two

[0064] The difference between the second embodiment and the first embodiment is that the opening of the sheet accommodating groove 10 is upward, and the lower limiting part 13 is formed on the sheet accommodating member 3. Specifically, the second embodiment is provided with a bottom wall forming the lower boundary of the sheet accommodating groove 10, and the lower limiting part 13 is formed on the front end of the bottom wall. In the second embodiment, the upper limiting part 21 is formed on the ribbon supporting member 2.

[0065] The other parts of the second embodiment are the same as those of the first embodiment.

[0066] The second embodiment can also achieve the same technical effects as the first embodiment because it adopts the same technical means as the first embodiment.

[0067] The above description and the embodiment are used to explain the protection scope of the present application, but do not constitute a limitation on the protection scope of the present application.

Claims

1. A print consumable supporting assembly (1), comprising: a ribbon supporting member (2) provided with a first supporting portion (4) for supporting a ribbon take-up shaft (6) and a second supporting portion (5) for supporting a ribbon release shaft (7), the ribbon take-up shaft (6) and the ribbon release shaft (7) being used for loading a ribbon (32); and a sheet accommodating member (3) adapted to be detachably fixed with the ribbon supporting member (2) and provided with a sheet accommodating groove (19) for accommodating a print sheet (8); characterized in that: after the sheet accommodating member (3) is fixed with the ribbon supporting member (2), a front end of the sheet accommodating groove (19) in a sheet ejection direction of the print sheet forms a sheet ejection opening (30), a lowermost upper boundary of the sheet ejection opening (30) is defined by an upper limiting portion (21), an uppermost upper boundary of the sheet ejection opening (30) is defined by a lower limiting portion (13), the upper limiting portion (21) is formed on one of the ribbon supporting member (2) and the sheet accommodating member (3), and the lower limiting portion (13) is formed on the other one.

2. A print consumables support assembly (1) as claimed in claim 1, characterized in that, The sheet accommodating groove (19) is open downward, the upper limiting portion (21) is formed on the sheet accommodating member (3), and the lower limiting portion (13) is formed on the ribbon supporting member (2).

3. A print consumables support assembly (1) as claimed in claim 2, characterised in that, The sheet accommodating member (3) is provided with a top wall (20) forming an upper boundary of the sheet accommodating groove (19), the upper limiting portion (21) is at least two in number and is formed on a front end of the top wall (20) and is arranged in a left-right direction.

4. A print consumables support assembly (1) as claimed in claim 2, characterised in that, The ribbon supporting member (2) is provided with a cross beam (9) extending in a left-right direction, the cross beam (9) is provided with a supporting portion (10), a blocking portion (11) and the lower limiting portion (13), the supporting portion (10) is provided with an upward supporting surface for supporting a front end of the print sheet (8), the blocking portion (11) is provided with a guide inclined surface (12) adjacent to the supporting surface, the guide inclined surface (12) is inclined forward in an upward direction, and the lower limiting portion (13) is formed on a top end of the blocking portion (11).

5. A print consumables support assembly (1) as claimed in claim 4, characterised in that, The lower limiting portion (13) is two in number and is arranged in the left-right direction, and a distance exists between the lower limiting portion (13) and a corresponding side end of the cross beam (9) in the left-right direction.

6. A print consumables support assembly (1) as claimed in claim 1, characterized in that, The ribbon supporting member (2) and the sheet accommodating member (3) are detachably fixed in a front-rear direction by a resilient clamping mode.

7. A print consumables support assembly (1) as claimed in claim 6, characterised in that, The ribbon supporting member (2) is provided with a first limiting surface (14) and a second limiting surface (15), the sheet accommodating member (3) is provided with a first resilient clamping jaw (22) and a second resilient clamping jaw (24), the first resilient clamping jaw (22) is adapted to be resiliently deformed in an up-down direction and is provided with a third limiting surface (23) adapted to be limitedly matched with the first limiting surface (14) in a front-rear direction, and the second resilient clamping jaw (24) is adapted to be resiliently deformed in a left-right direction and is provided with a fourth limiting surface (25) adapted to be limitedly matched with the second limiting surface (15) in the front-rear direction.

8. A print consumables support assembly (1) as claimed in claim 6, characterised in that, The ribbon supporting member (2) and the sheet accommodating member (3) are limitedly matched in the up-down direction and the left-right direction by a plug-in matching mode.

9. A print consumables support assembly (1) as claimed in claim 1, characterized in that, The sheet accommodating member (3) is further provided with a shielding part (29), after the sheet accommodating member (3) is fixedly connected with the ribbon supporting member (2), the shielding part (29) is close to the second supporting part (5) and is adapted to partially shield the ribbon release shaft (7) supported by the second supporting part (5).

10. A print consumables unit (31) characterised by, The printing consumable supporting assembly (1) according to any one of claims 1 to 9, a ribbon winding shaft (6), a ribbon release shaft (7), a ribbon (32), a printing sheet (8), wherein the ribbon winding shaft (6) and the ribbon release shaft (7) carry the ribbon (32); the ribbon supporting member (2) supports the ribbon winding shaft (6) and the ribbon release shaft (7), the sheet accommodating member (3) accommodates the printing sheet (8); and the ribbon supporting member (2) and the sheet accommodating member (3) are fixedly connected.

11. A printer characterized by comprising: The printing consumable unit (31) according to claim 10, and a printer body, wherein the printer body is adapted to accommodate the printing consumable unit (31).

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