CN219727654U - Cutting mechanism and printer - Google Patents

Abstract

The utility model belongs to the technical field of printers, and discloses a cutting mechanism and a printer, wherein the cutting mechanism comprises a movable cutter and a fixed cutter, a paper feeding channel for a printing medium to pass through is formed between the movable cutter and the fixed cutter, the movable cutter comprises a movable cutter main body and a movable cutter blade arranged on the movable cutter main body, and the movable cutter can move relative to the fixed cutter so that the movable cutter blade is matched with the fixed cutter to cut the printing medium; the cutting mechanism further comprises an elastic piece, the elastic piece is used for giving the elastic force of the printing medium moving towards the moving knife, so that after the moving knife cuts the printing medium, the printing medium is pushed to move towards the moving knife through the elastic piece, the printing medium is prevented from deviating from a paper feeding channel, and paper jam is avoided.

Description

Cutting mechanism and printer

Technical Field

The utility model relates to the technical field of printers, in particular to a cutting mechanism and a printer.

Background

In some printers, it is necessary to cut a print medium for which printing has been completed, such as a ticket printer or the like. As shown in fig. 1, when a hob structure is used to cut a printing medium, a movement of a printer includes a housing 100', a movable blade 200' movably disposed in the housing 100', and a fixed blade 300' fixedly disposed in the housing 100', the movable blade 200' being rotatable relative to the housing 100' such that a blade of the movable blade 200' and a blade of the fixed blade 300' are respectively contacted with both sides of the printing medium 400', thereby cutting the printing medium 400 '. However, there is a problem in that the printing medium 400' is generally curled and then placed in the printer, and after the cutting edge of the moving blade 200' and the cutting edge of the fixed blade 300' cut the printing medium 400', a part of the printing medium 400' still located in the movement of the printer is easily curled and deviated from a normal paper feeding path, so that the end of the printing medium 400' is deviated from the fixed blade 300', and the end of the printing medium 400' is blocked by the fixed blade 300' and cannot normally advance when the next paper feeding is performed, thereby causing a jam.

Disclosure of Invention

According to one aspect of the utility model, the utility model provides a cutting mechanism to solve the problem that paper jam is easy to occur when a hob cutter structure is adopted to cut printing media in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the cutting mechanism comprises a movable cutter and a fixed cutter, a paper feeding channel for a printing medium to pass through is formed between the movable cutter and the fixed cutter, the movable cutter comprises a movable cutter main body and a movable cutter blade arranged on the movable cutter main body, and the movable cutter can move relative to the fixed cutter so that the movable cutter blade is matched with the fixed cutter to cut the printing medium;

and an elastic member for imparting an elastic force to the printing medium toward the moving blade.

As the preferable scheme of cutting mechanism, still include set up in the moving part of elastic component, the moving part can with print medium contact, the moving part rotate set up in the printer main part.

As a preferable mode of the cutting mechanism, the movable member has a first end and a second end, the first end is rotatably connected to the printer body, the second end is capable of abutting against one side of the printing medium, and the first end is located upstream of the second end in the conveying direction of the paper feeding path.

As the preferable scheme of cutting mechanism, move the cutter and have initial position and cutting position, when moving the cutter and being located initial position, move the cutter with have the clearance between the moving part, when moving the cutter and being located cutting position, move the cutter cutting edge can with the stationary knife cooperation in order to cut printing medium.

As a preferable scheme of the cutting mechanism, when the movable knife moves from the initial position to the cutting position, the movable knife can push the movable piece to move.

As a preferable mode of the cutting mechanism, the cutting mechanism further comprises a rotary roller, wherein the peripheral wall of the rotary roller can be abutted against the printing medium, and the rotary roller is arranged on the movable piece and/or the movable cutter body.

According to another aspect of the present utility model, there is provided a printer comprising a printer body and the above-described cutting mechanism, the cutting mechanism being mounted to the printer body.

As a preferred aspect of the printer, the printer further comprises a printing mechanism, wherein the printing mechanism comprises a printing head, and the printing head is used for printing the printing medium.

As a preferable mode of the printer, the printer further includes a driving roller, an outer peripheral wall of which is capable of abutting against the printing medium, and which is configured to drive the printing medium to move.

As a preferable mode of the printer, the printing mechanism further includes a print head elastic member connected to the printer body, the print head elastic member is configured to provide an elastic force for moving the print head so that the print head abuts against one side of the print medium, and the other side of the print medium abuts against an outer peripheral wall of the driving roller.

The beneficial effects of the utility model are as follows:

the utility model provides a cutting mechanism which comprises a movable cutter and a fixed cutter, wherein a paper feeding channel for a printing medium to pass through is formed between the movable cutter and the fixed cutter, the movable cutter comprises a movable cutter main body and a movable cutter blade arranged on the movable cutter main body, and the movable cutter can move relative to the fixed cutter so that the movable cutter blade is matched with the fixed cutter to cut the printing medium. The cutting mechanism further comprises an elastic piece, the elastic piece is used for giving the elastic force of the printing medium moving towards the moving knife, so that after the moving knife cuts the printing medium, the printing medium is pushed to move towards the moving knife through the elastic piece, the printing medium is prevented from deviating from a paper feeding channel, and paper jam is avoided.

The utility model also provides a printer comprising the cutting mechanism, which can prevent the printing medium from curling and further avoid paper jam.

Drawings

FIG. 1 is a schematic diagram of a prior art printer;

FIG. 2 is a schematic diagram of a printer according to an embodiment of the present utility model;

fig. 3 is an enlarged view at a in fig. 2.

In the figure:

100', a housing; 200', a movable cutter; 300', fixed knife; 400', print medium;

100. a printer main body;

200. a movable knife; 201. a movable cutter body; 202. a movable knife blade;

300. a fixed cutter;

400. a print medium;

500. a driving roller;

600. a print head;

700. a printhead elastic member;

1. a movable member; 11. a first end; 12. a second end;

2. an elastic member.

Detailed Description

The utility model is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

In some printers, it is necessary to cut a print medium for which printing has been completed, such as a ticket printer or the like. When the hob structure is adopted to cut the printing medium, the movable knife can rotate relative to the shell, so that the cutting edge of the movable knife and the cutting edge of the fixed knife are respectively contacted with two sides of the printing medium, and the printing medium is cut. However, after the cutting edge of the moving knife and the cutting edge of the fixed knife cut the printing medium, part of the printing medium still located in the printer core is easy to curl, so that the end part of the printing medium is deviated to the fixed knife, and when the next paper feeding is performed, the end part of the printing medium is blocked by the fixed knife and cannot normally advance, and paper jam is caused.

To the above-mentioned problem, this embodiment provides cutting mechanism to solve among the prior art when adopting hob structure to carry out the printing medium and cut the problem of easy card paper, can be used to printer technical field.

Referring to fig. 2 to 3, the cutting mechanism includes a movable blade 200 and a fixed blade 300, a paper feed path for passing a printing medium 400 is formed between the movable blade 200 and the fixed blade 300, the movable blade 200 includes a movable blade body 201 and a movable blade edge 202 provided to the movable blade body 201, and the movable blade 200 is movable with respect to the fixed blade 300 so that the movable blade edge 202 cooperates with the fixed blade 300 to cut the printing medium 400. Alternatively, the cutting mechanism is configured to be mounted on the printer body 100, the paper feeding path is located on the printer body 100, the moving blade 200 and the fixed blade 300 are both disposed on the printer body 100, the fixed blade 300 can be fixedly mounted on the printer body 100, and the moving blade 200 can move relative to the printer body 100, so that the moving blade 202 is matched with the fixed blade 300. The printer main body 100 may be the same structural member, i.e. a housing or a supporting frame of the printer, and the movable blade 200 and the fixed blade 300 are simultaneously mounted on the housing or the supporting frame; alternatively, the printer body 100 may include two or more structural members, in which case the moving blade 200 is mounted on a print head holder, the stationary blade 300 is mounted on a rubber roller holder, the rubber roller holder is detachably connected to the print head holder, and in other embodiments, the stationary blade 300 may be mounted on a printer flip cover, and the moving blade 200 is mounted on a printer housing.

Alternatively, the movable blade 200 can be rotated relative to the printer body 100 to bring a part of the movable blade edge 202 into contact with the printing medium 400, so that when cutting, the contact between the movable blade edge 202 and the printing medium 400 is point contact, and the printing medium 400 can be cut by a small force. The specific structure is already prior art, for example, the earlier patent with application number CN201610725481.1, and will not be described again.

With continued reference to fig. 2-3, the cutting mechanism further includes an elastic member 2, where the elastic member 2 is configured to give an elastic force to the movement of the printing medium 400 toward the moving blade 200, so that when the moving blade 200 cuts the printing medium 400, the printing medium 400 is pushed by the elastic member 2 to move toward the moving blade 200, so as to avoid the printing medium 400 from deviating from the paper feeding path, and further avoid paper jam. Alternatively, the elastic member 2 is provided to the printer body 100.

With continued reference to fig. 2-3, the cutting mechanism further includes a movable member 1 disposed on the elastic member 2, where the movable member 1 can contact the printing medium 400 to transfer the elastic force of the elastic member 2, and the movable member 1 is connected to the elastic member 2, and the elastic member 2 is connected to the printer main body 100 to implement roll-preventing, and in order to make the movable member 1 smoothly move relative to the printer main body 100, the movable member 1 and the printer main body 100 may be directly connected by rotation or sliding. In the present embodiment, the movable member 1 is rotatably provided to the printer main body 100.

Specifically, the movable member 1 has a first end 11 and a second end 12, the first end 11 being rotatably connected to the printer body 100, the second end 12 being capable of abutting against one side of the printing medium 400. Alternatively, the elastic member 2 is a compression spring, and the elastic member 2 is connected between the first end 11 and the second end 12, or connected to an end of the second end 12. While in other embodiments the elastic member 2 may also be a torsion spring.

With continued reference to fig. 2-3, the first end 11 is upstream of the second end 12 in the direction of conveyance of the paper path. Since the first end 11 is rotatably connected to the printer main body 100, a gap for the printing medium 400 to pass through is required between the first end 11 and the movable blade 200, and the second end 12 can abut against the printing medium 400, so that the movable member 1 can perform a certain guiding function on the conveying of the printing medium 400, that is, guiding the printing medium 400 to move from the first end 11 to the second end 12. Alternatively, the movable member 1 has a plate shape.

With continued reference to fig. 2-3, the movable blade 200 has an initial position and a cutting position, and when the movable blade 200 is in the initial position, a gap is provided between the movable blade 200 and the movable member 1 to facilitate the passage of the printing medium 400 and the loading of the printing medium 400 such as paper, and when the movable blade 200 is in the cutting position, the movable blade edge 202 can cooperate with the stationary blade 300 to cut the printing medium 400.

With continued reference to fig. 2-3, when the movable blade 200 moves from the initial position to the cutting position, the movable blade 200 can push the movable member 1 to move. So set up, at the in-process that moves the sword 200 from initial position to cutting position, moving part 1 can rotate thereupon, dodges and moves sword 200 to can not cause the influence to cutting action, and when moving sword 200 from cutting position to initial position, moving part 1 resets under the effect of elastic component 2, promotes the printing medium 400 towards moving sword 200, pushes away stationary knife 300, avoids the card paper.

With continued reference to fig. 2-3, the cutting mechanism further includes a roller, an outer peripheral wall of which is capable of abutting against the printing medium 400, the roller being provided to the movable member 1 and/or the movable blade body 201, thereby reducing friction between the printing medium 400 and the movable member 1 and the movable blade body 201.

The present embodiment also provides a printer, including a printer main body 100 and the above-mentioned cutting mechanism, the cutting mechanism is mounted on the printer main body 100. The cutting mechanism can prevent the printing medium from curling and has a simple structure.

With continued reference to fig. 2-3, the printer further includes a printing mechanism including a printhead 600, the printhead 600 for printing on the print medium 400 to perform a basic printing function of the printer.

With continued reference to fig. 2-3, the printer further includes a driving roller 500, an outer peripheral wall of the driving roller 500 being capable of abutting the printing medium 400, and the driving roller 500 being configured to drive the printing medium 400 in motion to complete the conveyance of the printing medium 400. In the present embodiment, the driving roller 500 is located upstream of the movable member 1 and the movable blade 200 in the conveying direction of the printing medium 400.

With continued reference to fig. 2-3, the printing mechanism further includes a printhead elastic member 700 connected to the printer body 100, the printhead elastic member 700 being configured to provide an elastic force for moving the printhead 600 such that the printhead 600 abuts against one side of the printing medium 400 and the other side of the printing medium 400 abuts against the peripheral wall of the driving roller 500, thereby enabling both sides of the printing medium 400 to be respectively clamped by the driving roller 500 and the printhead 600, which can enhance a printing effect while facilitating the driving roller 500 to drive the printing medium 400 to move.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Various obvious changes, rearrangements and substitutions can be made by those skilled in the art without departing from the scope of the utility model. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The cutting mechanism comprises a movable cutter (200) and a fixed cutter (300), a paper feeding channel for a printing medium (400) to pass through is formed between the movable cutter (200) and the fixed cutter (300), the movable cutter (200) comprises a movable cutter main body (201) and a movable cutter blade (202) arranged on the movable cutter main body (201), and the movable cutter (200) can move relative to the fixed cutter (300) so that the movable cutter blade (202) is matched with the fixed cutter (300) to cut the printing medium (400);

characterized by further comprising an elastic member (2), the elastic member (2) being configured to give an elastic force to the movement of the printing medium (400) toward the movable blade (200).

2. The cutting mechanism according to claim 1, further comprising a movable member (1) provided to the elastic member (2), the movable member (1) being capable of contacting the printing medium (400), the movable member (1) being rotatably provided to the printer main body (100).

3. A cutting mechanism according to claim 2, wherein the movable member (1) has a first end (11) and a second end (12), the first end (11) being rotatably connected to the printer body (100), the second end (12) being capable of abutting against one side of the printing medium (400), the first end (11) being located upstream of the second end (12) in the conveying direction of the paper feed path.

4. The cutting mechanism according to claim 2, wherein the movable blade (200) has an initial position and a cutting position, a gap is provided between the movable blade (200) and the movable member (1) when the movable blade (200) is located at the initial position, and the movable blade edge (202) is capable of cooperating with the stationary blade (300) to cut the printing medium (400) when the movable blade (200) is located at the cutting position.

5. The cutting mechanism according to claim 4, wherein the movable blade (200) is capable of pushing the movable member (1) to move when the movable blade (200) moves from an initial position to the cutting position.

6. The cutting mechanism according to any one of claims 2-5, further comprising a rotating roller, an outer peripheral wall of which is capable of abutting against the printing medium (400), the rotating roller being provided to the movable member (1) and/or the movable blade body (201).

7. A printer comprising a printer body (100) and a cutting mechanism according to any one of claims 1 to 6, said cutting mechanism being mounted to said printer body (100).

8. The printer of claim 7, further comprising a printing mechanism including a printhead (600), the printhead (600) for printing on the print medium (400).

9. The printer according to claim 8, further comprising a drive roller (500), an outer peripheral wall of the drive roller (500) being capable of abutting the print medium (400), and the drive roller (500) being configured to drive the print medium (400) in motion.

10. The printer according to claim 9, wherein the printing mechanism further comprises a head spring (700) connected to the printer body (100), the head spring (700) being configured to provide a spring force for moving the printhead (600) such that the printhead (600) abuts against one side of the printing medium (400) and the other side of the printing medium (400) abuts against the outer peripheral wall of the driving roller (500).