CN218201164U - Paper supply cassette and printer - Google Patents

Abstract

The embodiment of the application provides a paper supply box and printer, relates to the printing technology field, and can reduce the space occupation when long paper is printed. A paper supply cassette comprising: the paper feeding part comprises a first bottom plate and two first side plates extending along the length direction of the first bottom plate, and the first bottom plate and the two first side plates form a paper accommodating space with an opening at the top; the loading part covers part of the top opening of the paper feeding part, and one side of the loading part, which is far away from the first bottom plate, is provided with a surface for loading paper; the paper feeding part is configured to be connected to the printer body, and the size of the paper feeding cassette in the horizontal direction is larger than that of the printer body.

Description

Paper supply cassette and printer

Technical Field

The application relates to the technical field of printing, in particular to a paper supply box and a printer.

Background

In the funeral industry, long paper needs to be printed, and the existing long paper printing mode is to feed paper from one side of a printer and discharge paper from the other side of the printer so as to realize long paper printing. However, the conventional long paper printing method requires a large space.

SUMMERY OF THE UTILITY MODEL

A paper supply cassette and a printer can reduce the space occupation when long paper is printed.

In a first aspect, there is provided a paper supply cassette comprising: the paper feeding part comprises a first bottom plate and two first side plates extending along the length direction of the first bottom plate, and the first bottom plate and the two first side plates form a paper accommodating space with an opening at the top; the carrying part covers part of the top opening of the paper feeding part, and one side of the carrying part, which is far away from the first bottom plate, is provided with a surface for carrying paper; the paper feeding part is configured to be connected to the printer body, and the size of the paper feeding cassette in the horizontal direction is larger than that of the printer body.

In one possible embodiment, the part of the paper feeding part which is not covered by the loading part is provided with two opposite first limiting parts, the two first limiting parts are arranged along the width direction of the first bottom plate, and the distance between the two first limiting parts is adjustable; the part of the paper feeding part covered by the loading part is provided with two opposite second limiting parts, the two second limiting parts are arranged along the width direction of the first bottom plate, and the distance between the two second limiting parts is adjustable.

In one possible embodiment, a portion of the paper feeding portion covered by the loading portion is provided with a third stopper portion whose position is adjustable along the longitudinal direction of the first base plate.

In one possible embodiment, the mounting portion has a second bottom plate that covers and blocks a portion of the top opening of the sheet feeding portion.

In one possible embodiment, the paper feeding part comprises a fixed paper feeding part and a telescopic paper feeding part which can move along the length direction of the first bottom plate relative to the fixed paper feeding part;

the loading part comprises a fixed loading part and a telescopic loading part which can move along the length direction of the first bottom plate relative to the fixed loading part, the fixed loading part covers part of the top opening of the fixed paper feeding part, and the telescopic loading part covers the top opening of the telescopic paper feeding part.

In one possible embodiment, when the telescopic paper feeding portion is retracted into the fixed paper feeding portion to the maximum extent, the size of a portion of the paper feeding portion covered by the loading portion is larger than the size of a portion of the paper feeding portion not covered by the loading portion in the longitudinal direction of the first base plate; when the telescopic paper feeding part extends and fixes the paper feeding part to the maximum extent, the size of the part of the paper feeding part covered by the loading part is larger than 2 times of the size of the part of the paper feeding part not covered by the loading part in the length direction of the first bottom plate.

In a possible embodiment, the bottom of each first side plate is provided with a first handle structure which is concave towards the top, and the first handle structures of the two first side plates are arranged oppositely.

In one possible embodiment, the first handle structure is located at a center of gravity of the paper supply cassette in a longitudinal direction of the first base plate.

In one possible embodiment, the paper feeding part comprises a first sub-paper feeding part, a second sub-paper feeding part and a third sub-paper feeding part which are sequentially arranged along the length direction of the first bottom plate, and the first handle structure is positioned at the connecting part of the second sub-paper feeding part and the third sub-paper feeding part; the mounting part comprises a first sub-mounting part and a second sub-mounting part; the first sub-loading part and the top opening of the first sub-paper feeding part are staggered, the first sub-loading part covers the top opening of the second sub-paper feeding part and the top opening of a part of the third sub-paper feeding part, and the second sub-loading part covers the top opening of the other part of the third sub-paper feeding part.

In one possible embodiment, the first bottom plate of the second sub-sheet-feeding portion and the first bottom plate of the third sub-sheet-feeding portion are fixedly connected; one side of the first bottom plate of the second sub-paper-feeding part, which is far away from the top opening, is provided with a first supporting wall, one side of the first bottom plate of the third sub-paper-feeding part, which is far away from the top opening, is provided with a second supporting wall, and the first supporting wall is abutted against the second supporting wall.

In one possible embodiment, a third supporting wall is arranged on one side, away from the top opening, of the first bottom plate of the second sub-paper-feeding part; and a fourth supporting wall and a fifth supporting wall are arranged on one side, away from the top opening, of the first bottom plate of the third sub-paper-feeding part, the third supporting wall is clamped by the fourth supporting wall and the fifth supporting wall, and the fourth supporting wall and the fifth supporting wall are connected with each other on one side, away from the top opening, of the first bottom plate of the third sub-paper-feeding part.

In one possible embodiment, one of the first side plate of the second sub-sheet-feeding portion and the first side plate of the third sub-sheet-feeding portion has an insertion structure, and the other of the first side plate of the second sub-sheet-feeding portion and the first side plate of the third sub-sheet-feeding portion has two side walls and a groove located between the two side walls; the inserting structure is provided with a base and an inserting part, the inserting part is inserted into the groove, and the base is propped against the end parts of the two side walls; a clamping gap is formed between the end part of the insertion part and the base, a clamping supporting part is arranged between the end parts of the two side walls, and the clamping supporting part is clamped between the end part of the insertion part and the base in the clamping gap.

In one possible embodiment, the placing part is provided with two opposite second handle structures.

In one possible embodiment, the second sub mount part may be movable in a lengthwise direction of the first base plate with respect to the first sub mount part.

In one possible embodiment, a portion of the paper feed portion not covered by the loading portion is configured to be detachably attached to the printer body.

In one possible embodiment, the end of the loading portion near the printer connection structure is provided with a support structure, which is located on the side of the loading portion near the first base plate.

In a second aspect, there is provided a printer comprising: a printer body and the above-mentioned sheet feeding cassette; the part of the paper feeding part which is not covered by the loading part is positioned in the printer body, and the printer connecting structure is connected with the printer body; the part of the paper feeding part covered by the loading part and the loading part are positioned outside the printer body.

The paper supply box and the printer of this application embodiment can realize being connected between paper supply box and the printer body through paper supply portion, and through paper supply portion and the carrying portion that stack up set up, can be at the printer body with the paper feed and the play paper of realizing printing the in-process, consequently, compare with prior art, need not the both sides of printer body again and carry out paper feed and play paper respectively to space when having reduced and having printed occupies. And the probability of paper warping is reduced, and manual assistance for paper feeding and discharging is not needed.

Drawings

FIG. 1 is a schematic view of a sheet feeding cassette according to an embodiment of the present application;

FIG. 2 is a schematic view of a configuration of a paper feeding cassette and a printer body combined as a printer according to an embodiment of the present invention;

FIG. 3 is a schematic view showing a separation structure between the sheet feeding section and the loading section in FIG. 1;

FIG. 4 is a schematic cross-sectional view of the printer of FIG. 2;

FIG. 5 is a schematic diagram of the paper path of the printer of FIG. 4 during printing;

FIG. 6 is a schematic structural diagram of the sheet feeding portion when the telescopic sheet feeding portion is retracted into the fixed sheet feeding portion to the maximum extent in the embodiment of the present application;

FIG. 7 is a schematic view showing the moving direction of the telescopic paper feeder in the embodiment of the present application;

FIG. 8 is a schematic structural diagram of the sheet feeding portion when the telescopic sheet feeding portion extends to the maximum extent to fix the sheet feeding portion in the embodiment of the present application;

FIG. 9 is a schematic view of the paper feeding cassette and the printer body when the retractable mounting portion extends out of the fixed mounting portion to the maximum extent in the embodiment of the present application;

FIG. 10 is a schematic view of the paper feeding cassette and the printer body when the retractable mounting portion is retracted into the fixed mounting portion to the maximum extent in the embodiment of the present application;

FIG. 11 is an enlarged view of a portion of the roller mounting area of FIG. 3;

FIG. 12 is a schematic view showing the structure of another sheet feeding cassette in the embodiment of the present application;

FIG. 13 is a schematic view of the paper feed cassette and printer body of FIG. 12 when combined as a printer;

FIG. 14 is a schematic view showing a separation structure between the sheet feeding unit and the mounting unit in FIG. 12;

FIG. 15 is a schematic cross-sectional view of the printer of FIG. 13;

FIG. 16 is a schematic view of the back side of the sheet feeding section in FIG. 14;

FIG. 17 is an enlarged partial view of the area F in FIG. 15;

FIG. 18 is an enlarged, fragmentary view of the first handle structure of FIG. 14;

FIG. 19 is a cross-sectional view of the first side plate of FIG. 18;

FIG. 20 is a schematic view of the second sub-mount section of FIG. 13 after being moved relative to the first sub-mount section;

FIG. 21 is an enlarged partial view of the area G in FIG. 15;

fig. 22 is a partially enlarged view of the region H in fig. 15.

Detailed Description

The terminology used in the description of the embodiments section of the present application is for the purpose of describing particular embodiments of the present application only and is not intended to be limiting of the present application.

An embodiment of the present application provides a paper supply cassette, as shown in fig. 1 to 4, a paper supply cassette 100 including: a sheet feeding section 10, the sheet feeding section 10 including a first bottom plate 11 and two first side plates 21 extending in a longitudinal direction of the first bottom plate 11, the first bottom plate 11 and the two first side plates 21 constituting a sheet accommodating space having an open top; a placement unit 20, the placement unit 20 covering a part of the top opening of the paper feeding unit 10, and a surface for placing paper on a side of the placement unit 20 away from the first base plate 11; the paper feeding section 10 is configured to be attached to the printer body 200, and the size of the paper feeding cassette 100 in the horizontal direction is larger than the size of the printer body 200 in the horizontal direction.

Specifically, in the embodiment of the present application, a part of the paper feeding cassette 100 is located in the printer body 200 and can be connected to the printer body 200 through the printer connection structure 3, the printer connection structure 3 can be disposed in a portion of the paper feeding section 10 that is not covered by the loading section 20, and another part of the paper feeding cassette 100 is located outside the printer body 200. The paper supply cassette 100 is used to supply paper to the printer body 200 during long paper printing and to receive printed paper from the printer body 200. The paper feeding unit 10 and the loading unit 20 are stacked, the paper feeding unit 10 is used for feeding paper, the loading unit 20 is used for discharging paper, for example, as shown in fig. 5, arrows filled with oblique lines in fig. 5 indicate a general paper feeding path of the paper during printing, the paper feeding unit 10 located below is used for feeding paper, the paper is transported upward to the printer body 200 through a portion of the paper feeding unit 10 not covered by the loading unit 20 for printing, and the paper is discharged through the surface of the loading unit 20 after being transported to the surface of the loading unit 20.

The paper supply box of this application embodiment, the printer connection structure through paper supply portion can realize being connected between paper supply box and the printer body, through the paper supply portion and the carrying portion that stack up the setting, can be at the printer body with the paper feed and the play paper of realizing printing the in-process, consequently, compare with prior art, need not the both sides of printer body again and carry out paper feed and play paper respectively to space when having reduced and having printed occupies. And the probability of paper warping is reduced, and manual assistance for paper feeding and discharging is not needed.

In one possible embodiment, as shown in fig. 1, 3, and 6 to 8, two first limiting portions 41 are provided at a portion of the paper feeding portion 10 not covered by the loading portion 20, the two first limiting portions 41 are arranged in the width direction of the first base plate 11, and the distance between the two first limiting portions 41 is adjustable; the portion of the paper feeding unit 10 covered by the mounting unit 20 is provided with two second stoppers 42 facing each other, the two second stoppers 42 are arranged in the width direction of the first base plate 11, and the distance between the two second stoppers 42 is adjustable.

Specifically, the sheet feeding cassette 100, the sheet feeding portion 10, and the first base plate 11 are elongated to accommodate printing of long sheets. The first limiting parts 41 and the second limiting parts 42 are used for adjusting based on the width of paper, so that the limitation of the paper in the width direction is realized, the deformation of the paper when the paper is placed is prevented, so that the printing is more stable, the distance between the two first limiting parts 41 or the adjustable range of the distance between the two second limiting parts 42 can be 90mm to 300mm, wherein the two first limiting parts 41 can limit the paper in the width direction at the front end of the paper in the paper supply part 10, and the two second limiting parts 42 can limit the paper in the width direction at the middle position of the paper supply part 10. The dotted filling arrows in fig. 7 point in the moving direction of the first stopper 41 and the second stopper 42.

In one possible embodiment, a portion of the paper feeding portion 10 covered by the mounting portion 20 is provided with a third stopper portion 43 whose position is adjustable along the longitudinal direction of the first base plate 11. The third position-limiting portion 43 can limit the position of paper in the longitudinal direction of the paper, can perform position adjustment in the longitudinal direction of the paper by the telescopic member, stabilizes the paper based on different paper lengths, prevents deformation of the paper when the paper is placed, and can accommodate paper with a length of 600mm to 1200mm, for example. The diagonal filled arrows in fig. 7 are directed in the moving direction of the third stopper 43.

In one possible embodiment, the loading unit 20 has a second bottom plate 52, and the second bottom plate 52 covers and blocks part of the top opening of the paper feeding unit 10, wherein, as shown in fig. 1, at least part of the side surface of the second bottom plate 52 is provided with a paper discharging side plate 51, and the second bottom plate 52 and the paper discharging side plate 51 may form a paper accommodating space for discharging paper. The side surface of the second bottom plate 52 is further provided with a bottom side plate 53, and the bottom side plate 53 is used for being matched with and limited by the first side plate 21, so that the loading part 20 is stably arranged on the paper feeding part 10. The second bottom plate 52 serves as a surface on which paper is placed to place paper coming out of the printer body 200; and on the other hand, the paper storage space is used for shielding and isolating the paper feeding, so that the mutual interference between the paper feeding and the paper discharging is prevented.

In one possible embodiment, as shown in fig. 6 to 10, the sheet feeding portion 10 includes a fixed sheet feeding portion 101 and a telescopic sheet feeding portion 102 movable in a longitudinal direction of the first base plate 11 with respect to the fixed sheet feeding portion 101; the mounting part 20 includes a fixed mounting part 201 and a telescopic mounting part 202 movable in the longitudinal direction of the first base plate with respect to the fixed mounting part 201, the fixed mounting part 201 covers a part of the top opening of the fixed paper feeding part 101, and the telescopic mounting part 202 covers the top opening of the telescopic paper feeding part 102.

Specifically, the fixed sheet feeding portion 101 and the telescopic sheet feeding portion 102 can slide based on a sliding rail structure therebetween, the fixed sheet feeding portion 101 and the fixed carrying portion 201 can form a fixed portion, the telescopic sheet feeding portion 102 and the telescopic carrying portion 202 can form a telescopic portion to move synchronously, the telescopic portion can move relative to the fixed portion, when the telescopic portion is completely retracted into the fixed portion, the sheet feeding cassette 100 can be in a completely retracted state as shown in fig. 10, when the telescopic portion is completely extended out of the fixed portion, the sheet feeding cassette 100 can be in a completely extended state as shown in fig. 9, based on the relative movement of the telescopic portion relative to the fixed portion, the sheet feeding cassette can be suitable for sheets of different sizes, and when the sheet feeding cassette is suitable for smaller sheets, the telescopic portion can be retracted into the fixed portion to reduce the space occupied by the sheet feeding cassette. In fig. 7, the directions of the oblique-line filled arrows indicate the moving directions of the telescopic paper feeding unit 102 and the telescopic loading unit 202.

In one possible embodiment, as shown in fig. 6 and 10, when the telescopic paper feeding unit 102 is retracted into the fixed paper feeding unit 101 to the maximum extent, in the first bottom plate length direction, the size of the portion of the paper feeding unit 10 covered by the loading unit 20 is larger than the size of the portion of the paper feeding unit 10 not covered by the loading unit 20, the portion of the paper feeding unit 10 covered by the loading unit 20 is the portion of the paper feeding unit 10 outside the printer body 200, and the portion of the paper feeding unit 10 not covered by the loading unit 20 is the portion of the paper feeding unit 10 inside the printer body 200, for example, in the first bottom plate length direction, the size of the printer body 200 is 473mm, the size of the portion of the paper feeding cassette 100 outside the printer body 200 is 564mm in the first bottom plate length direction, that is the size of the portion of the paper feeding cassette 100 outside the printer body 200 in the first bottom plate length direction, and in the first bottom plate length direction, the size of the portion of the printer body 200 is larger than the size of the portion of the paper feeding unit 10 not covered by the loading unit 20, that is the bottom plate length direction, and the portion of the paper feeding unit 100 is larger than the size of the loading unit 20 in the first bottom plate length direction; as shown in fig. 8 and 9, when the telescopic paper feeding unit 102 extends and fixes the paper feeding unit 101 to the maximum extent, the size of the portion of the paper feeding unit 10 covered by the mount 20 is larger than 2 times the size of the portion of the paper feeding unit 10 not covered by the mount 20 in the first base plate longitudinal direction, for example, the size of the portion of the paper feeding cassette 100 located outside the printer body 200 in the first base plate longitudinal direction is 1025mm, and the size of the portion of the paper feeding unit 10 not covered by the mount 20 in the first base plate longitudinal direction is close to the size of the portion of the paper feeding unit 10 not covered by the mount 20 in the first base plate longitudinal direction, that is, the size of the portion of the paper feeding unit 10 covered by the mount 20 in the first base plate longitudinal direction is larger than 2 times the size of the portion of the paper feeding unit 10 not covered by the mount 20 in the first base plate longitudinal direction.

In one possible embodiment, as shown in fig. 3 and 11, the paper feeding cassette 100 further includes rollers, which may be disposed at the roller mounting portion 30 at the bottom of the paper feeding portion 10, for example, the paper feeding cassette 100 may be disposed with a plurality of rollers, wherein a pair of rollers arranged in the width direction of the first bottom plate 11 may be arranged in three sets in the length direction of the first bottom plate 11. But are not limited to three groups. The roller can facilitate the moving and dismounting between the paper supply box 100 and the printer body 200, for example, when the printer is used for the first time, a user inserts the paper supply box 100 with paper placed into the printer body 200 in a rolling mode of the roller to realize printing, and when the paper needs to be replaced, the paper supply box 100 can be pulled out from the printer body 200 by the roller in a mode of pulling the paper supply box 100, so that the paper can be replaced.

It should be noted that the structures shown in fig. 1 to 11 may be combined together to form an embodiment of a retractable sheet feeding cassette, and the different structures shown in fig. 1 to 11 may be formed as structures in different embodiments. Another embodiment of a non-retractable sheet feeding cassette is described below.

An embodiment of the present application provides a paper supply cassette, as shown in fig. 12 to 15, a paper supply cassette 100 including: a sheet feeding section 10, the sheet feeding section 10 including a first bottom plate 11 and two first side plates 21 extending in a length direction of the first bottom plate, the first bottom plate 11 and the two first side plates 21 constituting a sheet accommodating space with an open top; a placement unit 20, the placement unit 20 covering a part of the top opening of the paper feeding unit 10, and a surface for placing paper on a side of the placement unit 20 away from the first base plate 11; the sheet feeding section 10 is configured to be attached to the printer body 200, and the size of the sheet feeding cassette 100 in the horizontal direction is larger than the size of the printer body 200 in the horizontal direction; the bottom of each first side plate 21 is provided with a first handle structure 210 which is concave towards the top, and the first handle structures 210 of the two first side plates 21 are arranged oppositely.

Specifically, the first handle structure 210 is actually an upwardly facing recessed structure such that a user can insert a finger into the bottom of the paper supply cassette 100 through the recessed structure to facilitate transport of the paper supply cassette 100 by the user based on the first handle structure 210.

In one possible embodiment, as shown in fig. 12 to 15, the first handle structure 210 is located at the position of the center of gravity of the paper supply cassette 100 in the longitudinal direction of the first base plate 11, and since the paper supply cassette 100 has a large dimension in the longitudinal direction of the first base plate 11, the stability of the paper supply cassette 100 during transportation can be improved by locating the first handle structure 210 at the position of the center of gravity of the paper supply cassette 100.

In one possible embodiment, the first handle structure 210 is located at an intermediate position of the sheet feeding portion 10 in the longitudinal direction of the first base plate 11.

In one possible embodiment, as shown in fig. 12 to 16, the sheet feeding portion 10 includes a first sub-sheet feeding portion 10A, a second sub-sheet feeding portion 10B, and a third sub-sheet feeding portion 10C arranged in this order along the length direction of the first base plate, and the first handle structure 210 is located at the connection between the second sub-sheet feeding portion 10B and the third sub-sheet feeding portion 10C; the mounting part 20 includes a first sub-mounting part 20D and a second sub-mounting part 20E; the first sub-mount part 20D and the top opening of the first sub-sheet feeding part are offset from each other, the first sub-mount part 20D covers the top opening of the second sub-sheet feeding part 10B and the top opening of a part of the third sub-sheet feeding part 10C, and the second sub-mount part 20E covers the top opening of the other part of the third sub-sheet feeding part 10C. The first sub-sheet feeding portion 10A and the second sub-sheet feeding portion 10B are fixedly connected, for example, a portion of the second sub-sheet feeding portion 10B extends into the back of the first sub-sheet feeding portion 10A, and the two are combined and fixed to each other by a hook structure on the back of the first sub-sheet feeding portion 10A.

In one possible embodiment, the first bottom plate 11 of the second sub-sheet-feeding section 10B and the first bottom plate 11 of the third sub-sheet-feeding section 10C are fixedly connected, for example, by fastening screws 61 and bolts 62; as shown in fig. 17, fig. 17 is a partially enlarged schematic view of the region F in fig. 15, a first supporting wall 71 is disposed on a side of the first bottom plate 11 of the second sub-sheet feeding portion 10B away from the top opening, a second supporting wall 72 is disposed on a side of the first bottom plate 11 of the third sub-sheet feeding portion 10C away from the top opening, and the first supporting wall 71 and the second supporting wall 72 abut against each other, so that the deformation of the first handle structure 210 caused by the upward force applied by the user can be improved, and the overall structure is more stable.

In one possible embodiment, as shown in fig. 17, the first bottom plate 11 of the second sub-sheet feeding section 10B is provided with a third support wall 73 on a side away from the top opening; the fourth and fifth support walls 74 and 75 are provided on the side of the first bottom plate 11 of the third sub-sheet feeding part 10C away from the top opening, the third support wall 73 is sandwiched by the fourth and fifth support walls 74 and 75, the fourth and fifth support walls 74 and 75 are connected to each other on the side away from the top opening, and the fourth and fifth support walls 74 and 75 may be connected to the second support wall 72, which may further improve deformation caused when a user applies a force upward at the first handle structure 210.

In one possible embodiment, as shown in fig. 18 and 19, fig. 18 is a partially enlarged schematic view at the first handle structure 210 in fig. 14, fig. 19 is a sectional structure schematic view at the first side plate in fig. 18, one of the first side plate 21 of the second sub-sheet-feeding portion 10B and the first side plate 21 of the third sub-sheet-feeding portion 10C has an insertion structure 81, and the other of the first side plate 21 of the second sub-sheet-feeding portion 10B and the first side plate 21 of the third sub-sheet-feeding portion 10C has two side walls 82 and a groove 83 between the two side walls 82; the insert structure 81 has a seat 811 and an insert portion 812, the insert portion 812 being inserted into the groove 83, and the seat 811 abutting against the ends of the two side walls 82; a grip gap 813 is formed between the end of the insertion portion 812 and the base 811, and a grip support portion 84 is provided between the ends of the two side walls 82, and the grip support portion 84 is gripped between the end of the insertion portion 812 and the base 811 at the grip gap 813, which can further improve deformation caused when a user applies force upward at the first handle structure 210.

In one possible embodiment, as shown in fig. 12, the placement portion 20 has two opposite second handle structures 220, and the two second handle structures 220 are used for facilitating the placement of the placement portion 20. In addition, a third handle structure 230 may be provided at the end of the paper feeding unit 10 away from the printer connecting structure 3 to facilitate the end pick-up of the paper feeding cassette.

In one possible embodiment, as shown in fig. 20, the second sub mount portion 20E is movable relative to the first sub mount portion 20D along the longitudinal direction of the first base plate, the arrow in fig. 20 indicates the longitudinal direction of the first base plate, and after the second sub mount portion 20E slides to a side close to the printer connecting structure 3, the second sub mount portion 20E can be retracted into the first sub mount portion 20D, that is, the paper accommodating space of the lower paper feeding portion 10 can be exposed, so that the user can easily view the remaining amount of paper in the paper feeding portion 10.

In one possible embodiment, as shown in fig. 21, fig. 21 is an enlarged partial schematic view of a region G in fig. 15, a support structure 9 is disposed at one end of the loading portion 20 close to the printer connecting structure 3, the support structure 9 is located at one side of the loading portion 20 close to the first bottom plate 11, that is, the support structure 9 is located at the bottom of the loading portion 20, when the paper feeding cassette 100 is connected to the printer body 200, the paper discharging plate 2001 of the printer body 200 is placed on the loading portion 20, the end of the paper feeding cassette 100 close to the printer connecting structure 3 is pressed during printing, the support structure 9 is beneficial to preventing the end of the paper discharging plate 2001 from sinking due to the pressing, and if the paper discharging plate 2001 is pressed below the loading portion 20, a paper jam problem may be caused, and therefore, the support structure 9 can improve the paper jam problem caused by the sinking of the end of the loading portion 20. As shown in fig. 22, fig. 22 is a partially enlarged schematic view of the region H in fig. 15, and the end of the first sub-mount portion 20D away from the printer connection structure 3 is located on the side of the second sub-mount portion 20E away from the first bottom plate 11, that is, the end of the first sub-mount portion 20D away from the printer connection structure 3 is located on the upper side of the second sub-mount portion 20E, so as to form a step gradually sinking in the paper output direction of the printer, and to improve the paper jam problem.

In a possible implementation manner, on the basis of any of the above-mentioned embodiments, the portion of the paper feeding unit 10 not covered by the loading unit 20 is configured to be detachably connected to the printer body 200, for example, the printer connecting structure 3 is a detachable printer connecting structure, that is, the paper feeding cassette 100 is detachably connected to the printer body 200 during printing.

It should be noted that the above-mentioned limiting parts can be applied to all embodiments as well, and in one possible embodiment, as shown in fig. 14, two first limiting parts 41 are provided opposite to the part of the paper feeding part 10 not covered by the loading part 20, the two first limiting parts 41 are arranged along the width direction of the first bottom plate 11, and the distance between the two first limiting parts 41 is adjustable; two second limiting parts 42 are arranged opposite to each other at a portion of the paper feeding part 10 covered by the placing part 20, the two second limiting parts 42 are arranged in the width direction of the first base plate 11, the distance between the two second limiting parts 42 is adjustable, paper is stabilized based on different paper widths, and paper deformation when the paper is placed is prevented.

In one possible embodiment, as shown in fig. 14, a third stopper 43 is provided at a portion of the paper feeding unit 10 covered by the loading unit 20, the position of which is adjustable along the longitudinal direction of the first base plate 11. The third position-limiting portion 43 can limit the position of paper in the longitudinal direction of the paper, and can adjust the position in the longitudinal direction of the paper by means of the telescopic member, so that the paper can be stabilized based on different paper lengths, and the paper can be prevented from being deformed when the paper is placed.

In any of the embodiments described above, the mounting unit 20 may cover a portion of the paper feeding unit 10 located outside the printer body 200, and the mounting unit 20 may protect the paper in the paper feeding unit 10, for example, by preventing moisture and dust, and may also function as a paper discharging cover.

An embodiment of the present application further provides a printer, including: a printer body 200 and a sheet feed cassette 100; the part of the paper feeding unit 10 not covered by the loading unit 20 is located in the printer body 200, and the printer connecting structure 3 is connected to the printer body 200, that is, the paper feeding unit 10 is connected to the printer body 200; the portion of the paper feed unit 10 covered by the mount 20 and the mount 20 are located outside the printer body 200, and the size of the paper feed cassette 100 in the horizontal direction is larger than the size of the printer body 200 in the horizontal direction.

The specific structure and distance of the paper supply cassette 100 are the same as those of the above-described embodiment, and are not described again here.

In the embodiments of the present application, "at least one" means one or more, "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, and indicates that three relationships may exist, for example, a and/or B, and may indicate that a exists alone, a and B exist simultaneously, and B exists alone. Wherein A and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" and the like, refer to any combination of these items, including any combination of singular or plural items. For example, at least one of a, b, and c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or multiple.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (17)

1. A paper supply cassette, comprising:

the paper feeding device comprises a paper feeding part and a paper discharging part, wherein the paper feeding part comprises a first bottom plate and two first side plates extending along the length direction of the first bottom plate, and the first bottom plate and the two first side plates form a paper accommodating space with an opening at the top;

a placement portion that covers a portion of the top opening of the paper feeding portion, the placement portion having a surface for placing paper on a side away from the first base plate;

the paper feeding part is configured to be connected to a printer body,

the size of the paper feed cassette in the horizontal direction is larger than the size of the printer body in the horizontal direction.

2. A sheet feeding cassette according to claim 1,

the part of the paper feeding part which is not covered by the carrying part is provided with two opposite first limiting parts which are arranged along the width direction of the first bottom plate, and the distance between the two first limiting parts is adjustable;

the part of the paper feeding part covered by the carrying part is provided with two opposite second limiting parts which are arranged along the width direction of the first bottom plate, and the distance between the two second limiting parts is adjustable.

3. A sheet feeding cassette according to claim 2,

and a third limiting part with adjustable position along the length direction of the first bottom plate is arranged on the part of the paper feeding part covered by the carrying part.

4. A sheet feeding cassette according to claim 1,

the loading part is provided with a second bottom plate, and the second bottom plate covers and shields part of the top opening of the paper feeding part.

5. A sheet feeding cassette according to claim 1,

the paper feeding part comprises a fixed paper feeding part and a telescopic paper feeding part which can move along the length direction of the first bottom plate relative to the fixed paper feeding part;

the placing part comprises a fixed placing part and a telescopic placing part which can move along the length direction of the first bottom plate relative to the fixed placing part, the fixed placing part covers part of the top opening of the fixed paper feeding part, and the telescopic placing part covers the top opening of the telescopic paper feeding part.

6. A sheet feeding cassette according to claim 5,

when the telescopic paper feeding part is retracted into the fixed paper feeding part to the maximum extent, the size of the part of the paper feeding part covered by the mounting part is larger than the size of the part of the paper feeding part not covered by the mounting part in the length direction of the first bottom plate;

when the telescopic paper feeding part extends out of the fixed paper feeding part to the maximum extent, the size of a part of the paper feeding part covered by the mounting part is 2 times larger than the size of a part of the paper feeding part not covered by the mounting part in the length direction of the first base plate.

7. A sheet feeding cassette according to claim 1,

the bottom of each first side plate is provided with a first handle structure which is sunken towards the top, and the first handle structures of the two first side plates are arranged oppositely.

8. The sheet-feeding cassette according to claim 7,

in the length direction of the first bottom plate, the first handle structure is positioned at the gravity center position of the paper feeding box.

9. The sheet-feeding cassette according to claim 7,

the paper feeding part comprises a first sub paper feeding part, a second sub paper feeding part and a third sub paper feeding part which are sequentially arranged along the length direction of the first bottom plate, and the first handle structure is positioned at the connecting part of the second sub paper feeding part and the third sub paper feeding part;

the mounting part comprises a first sub-mounting part and a second sub-mounting part;

the first sub-loading part and the top opening of the first sub-paper feeding part are staggered, the first sub-loading part covers the top opening of the second sub-paper feeding part and part of the top opening of the third sub-paper feeding part, and the second sub-loading part covers the top opening of the other part of the third sub-paper feeding part.

10. The paper supply cassette according to claim 9,

the first bottom plate of the second sub-paper-feeding part is fixedly connected with the first bottom plate of the third sub-paper-feeding part;

and a first supporting wall is arranged on one side, away from the top opening, of the first bottom plate of the second sub-paper-feeding part, a second supporting wall is arranged on one side, away from the top opening, of the first bottom plate of the third sub-paper-feeding part, and the first supporting wall abuts against the second supporting wall.

11. The sheet-feeding cassette according to claim 10,

a third support wall is arranged on one side, away from the top opening, of the first bottom plate of the second sub paper feeding part;

a fourth support wall and a fifth support wall are arranged on one side, away from the top opening, of the first bottom plate of the third sub-paper-feeding portion, the third support wall is clamped by the fourth support wall and the fifth support wall, and the fourth support wall and the fifth support wall are connected with each other on one side, away from the top opening, of the first bottom plate of the third sub-paper-feeding portion.

12. A sheet feeding cassette according to claim 9,

one of the first side plate of the second sub-sheet feeding portion and the first side plate of the third sub-sheet feeding portion has an insertion structure, and the other of the first side plate of the second sub-sheet feeding portion and the first side plate of the third sub-sheet feeding portion has two side walls and a groove located between the two side walls;

the inserting structure is provided with a base and an inserting part, the inserting part is inserted into the groove, and the base is abutted to the end parts of the two side walls;

a clamping gap is formed between the end part of the insertion part and the base, a clamping supporting part is arranged between the end parts of the two side walls, and the clamping supporting part is clamped between the end part of the insertion part and the base in the clamping gap.

13. The paper supply cassette according to claim 9,

the carrying part is provided with two opposite second handle structures.

14. The paper supply cassette according to claim 9,

the second sub mount portion may be movable in a longitudinal direction of the first base plate with respect to the first sub mount portion.

15. A sheet feeding cassette according to claim 1,

the portion of the paper feeding portion not covered by the mounting portion is configured to be detachably connected to the printer body.

16. A sheet feeding cassette according to claim 1,

one end of the carrying part, which is close to the printer, is provided with a supporting structure, and the supporting structure is positioned on one side of the carrying part, which is close to the first bottom plate.

17. A printer, comprising:

a printer body and the paper supply cassette of any one of claims 1 to 16;

the part of the paper feeding part which is not covered by the loading part is positioned in the printer body, and the paper feeding part is connected with the printer body;

the portion of the paper feeding unit covered by the mounting unit and the mounting unit are located outside the printer body.

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