CN216545384U - Cutter mechanism of printer - Google Patents

Abstract

The utility model provides a cutter mechanism of a printer, which comprises a mounting bracket, a cutter mechanism and a cutter mechanism, wherein a lower cutter part is mounted on the mounting bracket; the upper cutter part is provided with a cutter disc which is abutted against the lower cutter part; the driver is used for driving the upper cutter part to slide along the extending direction of the lower cutter part; the upper cutter part is provided with a lower cutter part and a lower cutter part, wherein the mounting bracket is provided with limit stops at positions close to two ends of the lower cutter part, and the upper cutter part limits the moving distance of the upper cutter part through the limit stops in the moving process; the upper cutter part also comprises a support used for bearing the cutter head, the support is arranged on the power output end of the driver, and the two ends of the support are provided with buffer blocks corresponding to the limit stops, so that the contact area between the buffer blocks and the limit stops is increased, the pressure is reduced, and the damage caused by impact is reduced.

Description

Cutter mechanism of printer

Technical Field

The utility model belongs to the field of paper cutters, and particularly relates to a cutter mechanism of a printer.

Background

In the cutting knife field, a cutting knife is adopted in a printer to cut paper materials to be printed into paper materials meeting the specification, and the inventor finds that at least the following problems exist in the paper material cutting process of a cutting knife mechanism in the prior art:

at first, cutter about the cutter mechanism that is common at present utilizes, thereby cuts the paper through dragging the cutter of one of them side, and for the sliding distance of restriction cutter, need set up the stopper in cutter mechanism both sides, however, the cutter slides the in-process, and the side and the stopper rigid contact of cutter, cutter striking stopper lead to stopper or cutter to cause the damage because of the collision easily.

In view of the above, it is necessary to develop a cutter mechanism of a printer to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the cutter mechanism of the printer mainly provided by the utility model increases the impact area and reduces the pressure intensity by arranging the buffer blocks on the two sides of the upper cutter part, thereby reducing the damage caused by impact.

To achieve the above objects and other advantages in accordance with the present invention, there is provided a cutter mechanism of a printer, including:

a mounting bracket on which a lower cutter portion is mounted;

an upper cutter portion that abuts against the lower cutter portion; and

the driver is used for driving the upper cutter part to slide along the extension direction of the lower cutter part;

the mounting bracket is provided with a limit stop block at the position of the mobile terminal of the upper cutter part;

the upper cutter part comprises a support, the support is installed on the power output end of the driver, and a buffer block is arranged on the end face, corresponding to the limit stop, of the support.

Preferably, the support is of a cantilever structure, one end of the support is pivoted to the movable end of the driver, and the other end of the support is provided with a cutter head;

the support can rotate along the pivoted position, so that the cutter head inclines relative to the lower forming part, and one side surface of the cutter head is pressed on the abutting edge of the upper cutter part.

Preferably, the support comprises a transition block and a connecting block formed by extending one end of the transition block outwards, and the transition block and the connecting block are integrally combined to form an L-shaped plate-shaped structure;

the transition block is pivoted with the movable end of the driver, and the cutter disc is arranged on the connecting block.

Preferably, an extension mounting plate is mounted on the connecting block, and the connecting block is connected with the extension mounting plate and forms a hollow accommodating cavity for accommodating the cutter head between the connecting block and the extension mounting plate;

the holding cavity is internally provided with a compression elastic piece, and the elastic restoring force of the compression elastic piece acts on the cutter head to provide the pressure on the abutting edge for pressing the cutter head.

Preferably, the top part of the connecting block is bent to form a supporting part, and the buffer block is fixed at a bent corner position formed between the connecting block and the supporting part.

Preferably, the connecting block is further provided with material pressing pieces, the material pressing pieces are arranged on two sides of the cutter head, one end of each material pressing piece is pressed on the mounting bracket, and the other end of each material pressing piece abuts against the supporting part;

the support is pushed to rotate around the central shaft direction of the pivot joint of the driver by the reverse supporting force of the mounting bracket to the material pressing piece, so that the upper cutter part is inclined.

Preferably, the connecting block and the supporting part are integrally combined to form an L-shaped plate-shaped structure, and two adjacent sides of the buffer block are respectively attached to the connecting block and the supporting part;

the buffer block is correspondingly attached to an included angle formed by the connecting block and the supporting part, and a smooth chamfer is arranged.

Preferably, the side surface of the buffer block is flush with or protrudes from the side surface of the support.

Preferably, the upper cutter part comprises a driving wheel for driving the cutter disc to rotate, and the driving wheel is abutted against a base surface and the cutter disc;

the driver drags the upper cutter part, and the driving wheel drives the cutter to rotate around the pivoting shaft of the cutter;

the mounting bracket is provided with a bearing beam, and the outer edge of the driving wheel is coated with an elastic ring;

when the support is turned over, the cutter head inclines towards the side face of the bearing beam, so that the elastic ring is pressed by the cutter head to deform.

Preferably, the driver is provided with two driving wheels in transmission connection, the two driving wheels are in transmission through a transmission part, the two sides of the transition block in the direction of the rotation axis of the transition block are fixedly provided with elastic tensioning parts, and the elastic tensioning parts are connected with the transmission part.

Compared with the prior art, the utility model has the beneficial effects that:

according to the cutter mechanism of the printer, the buffer blocks are arranged on the two sides of the upper cutter part, so that the impact area is increased, the pressure intensity is reduced, and the damage caused by impact is reduced.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the utility model and together with the description serve to explain the utility model without limiting the utility model. In the drawings:

FIG. 1 is a perspective view of a cutting mechanism according to the present invention;

FIG. 2 is an exploded view of an upper cutter portion of the cutter mechanism of the present invention;

FIG. 3 is a schematic view showing the positional relationship between the cutter head and the driving wheel in the upper cutter portion in the present invention;

FIG. 4 is a perspective view of the inner support of the upper cutter portion of the present invention;

FIG. 5 is a schematic view of the initial position of the cutter mechanism according to the present invention;

FIG. 6 is a schematic view of the turning of the upper cutter portion of the cutter mechanism of the present invention;

fig. 7 is a partially enlarged schematic view of fig. 6.

Shown in the figure:

341. mounting a bracket; 3411. a bearing beam; 3412. a guide seat;

342. a driver;

3421. a first drive pulley; 3422. a second transmission wheel; 3423. an elastic tension member;

343. an upper cutter portion;

3431. a support; 34311. a transition block; 34312. an induction block; 34313. connecting blocks; 34314. a let position port; 34315. connecting holes;

3432. a cutter head;

3433. compressing the elastic piece;

3435. pressing the material; 34351. a roller; 34352. a connecting rod; 34353. a buffer spring;

3436. an epitaxial mounting plate;

3437. a drive wheel; 34371. a wheel body; 34372. an elastic ring;

3438. a buffer block;

344. a lower cutter portion; 3441. abutting against the edges;

345. leveling the pressing plate;

346. a detection unit;

347. and a limit stop.

Detailed Description

The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings, which will enable those skilled in the art to practice the present invention with reference to the accompanying specification. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and claims of the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, etc., are defined with respect to the configurations shown in the respective drawings, and in particular, "height" corresponds to a dimension from top to bottom, "width" corresponds to a dimension from left to right, "depth" corresponds to a dimension from front to rear, which are relative concepts, and thus may be varied accordingly depending on the position in which it is used, and thus these or other orientations should not be construed as limiting terms.

Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments or relationships, unless expressly described otherwise.

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

According to an embodiment of the utility model, as shown in fig. 1 and 2, a cutter mechanism of a printer includes an upper cutter portion 343 and a lower cutter portion 344, the upper cutter portion 343 is obliquely pressed on the lower cutter portion 344, and a sheet is fed from an upstream conveying channel to a position between the upper cutter portion 343 and the lower cutter portion 344 for cutting;

the cutter mechanism further includes a driver 342 that drives the upper cutter portion 343; due to the fact that the width of the thin material is large, the processing length of the cutter mechanism is limited, the driver 342 drives the upper cutter portion 343, and long-distance cutting processing is completed.

Specifically, one side of the upper cutter portion 343 is pressed against the interference edge 3441 of the lower cutter portion 344, and the upper cutter portion 343 is dragged along the extending direction of the interference edge 3441 under the driving action of the driver 342, so that the paper material is cut by the interference edge 3441.

Further, the upper cutter portion 343 includes a cutter head 3432 and a driving wheel 3437 that drives the cutter head 3432; the driving wheel 3437 is simultaneously abutted against the cutter head 3432 and the base surface, the driver 342 drives the upper cutter portion 343, so that the driving wheel 3437 rotates to drive the cutter head 3432 to rotate, the cutter head 3432 is pressed on the lower cutter portion 344, meanwhile, the contact area between the cutter head 3432 and the lower cutter portion 344 is small, so that the pressure applied to the position where the cutter head 3432 is in contact with the lower cutter portion 344 is large, the same position of the cutter head 3432 slides along the edge angle edge for a long time, the cutter head 3432 is easily damaged, the side surface of the cutter head 3432 is uniformly contacted with the edge angle edge through the rotation of the cutter head 3432, the contact time between the single position of the cutter head 3432 and the edge angle edge is shortened, meanwhile, the sliding friction between the cutter head 3432 and the edge angle edge is converted into rolling friction through the rotation of the cutter head 3432, the friction coefficient is reduced, and the service lives of the cutter head 3432 and the lower cutter portion 344 are prolonged.

The driving wheel 3437 is abutted against a base surface and the cutter head 3432; the driver 342 drives the upper cutter portion 343, and the driving wheel 3437 rolls on the cutter 3432 to drive the cutter 3432 to rotate around its pivot axis.

The cutter mechanism further comprises a mounting bracket 341, the mounting bracket 341 is used for receiving the upper cutter part 343, the lower cutter part 344 and the driver 342, and the cutter mechanism is connected into a whole through the mounting bracket 341; the lower cutter portion 344 is mounted on the mounting bracket 341;

a bearing beam 3411 is erected in the mounting bracket 341, and the side wall of the bearing beam 3411 is used as a base surface which is abutted against the driving wheel 3437; in a preferred embodiment, the upper cutter portion 343 further comprises a seat 3431 for receiving the cutter head 3432, and the mounting bracket 341 is provided with a limit stopper 347 at the mobile terminal position of the upper cutter portion 343; in the preferred embodiment, since the driver 342 drives the upper cutter portion 343 to reciprocate, limit stoppers 347 are disposed at two ends of the mounting bracket 341 where the upper cutter portion 343 moves, and buffer blocks 3438 are disposed at two ends of the support 3431 corresponding to the limit stoppers 347, so as to increase the impact area, reduce the pressure, and reduce the damage caused by the impact;

specifically, the support 3431 includes a transition block 34311 and a connecting block 34313 formed by extending one end of the transition block 34311 outwards, the transition block 34311 and the connecting block 34313 are integrally combined to form an L-shaped plate-shaped structure; an abdicating opening 34314 is formed at one end of the connecting block 34313 adjacent to the transition block 34311, so that the driving wheel 3437 extends out of the abdicating opening 34314 and abuts against the cutter head 3432 and the bearing beam 3411.

The top part of the connecting block 34313 is bent to form a supporting part, and the buffer block 3438 is fixed at the position of a bent corner formed between the connecting block 34313 and the supporting part; specifically, the connecting block 34313 and the supporting part are integrally combined to form an L-shaped plate structure, and two adjacent sides of the buffering block 3438 are respectively attached to the connecting block 34313 and the supporting part;

the buffer block 3438 is provided with a smooth chamfer corresponding to an included angle formed between the connecting block 34313 and the supporting part, so as to facilitate grabbing.

Further, the side of the buffer block 3438 is flush with the side of the seat 3431 or protrudes from the side of the seat 3431, and the buffer block 3438 includes a rigid block, the side of which contacts the limit stop 347, thereby reducing the pressure.

A pivot shaft is arranged in the cutter head 3432 and is mounted on the support 3431, and the cutter head 3432 rotates around the pivot shaft under the driving of a driving wheel 3437; the supporting seat 3431 is in a cantilever structure, one end of the supporting seat 3431 is pivotally connected to the movable end of the driver 342, and the cutter head 3432 is mounted on the other end of the supporting seat 3431, so that when the supporting seat 3431 rotates around a pivotal connection point with the movable end of the driver 342, the cutter head 3432 inclines relative to the lower cutter portion 344;

a pulley 3438 is mounted on one side of the connecting block 34313 close to the receiving beam 3411, the receiving beam 3411 is a channel steel, the pulley 3438 is mounted in a sliding slot on the receiving beam 3411, and the pulley 3438 is slidably connected with the receiving beam 3411 through the pulley 3438 to limit the moving direction of the support 3431.

The transition block 34311 is pivoted with the movable end of the driver 342, and the cutter head 3432 is installed on the connecting block 34313; the support 3431 can rotate around the central axis direction pivoted to the driver 342, so that the cutter 3432 thereon is turned over to the side of the cutter 3432 and only abuts against the abutting edge 3441; specifically, the driver 342 drives the upper cutter portion 343 via a conveyor belt, which, in a specific embodiment, the device comprises a conveyor belt comprising a connecting rope and a line, the connecting line 3423 is a rigid rope, the driver 342 further comprises a first driving wheel 3421 and a second driving wheel 3422, the first driving wheel 3421 and the second driving wheel 3422 are respectively disposed at two ends of the mounting bracket 341, the first driving wheel 3421 and the second driving wheel 3422 are connected by the connecting line, the connecting rope and wire are connected to both sides of the transition block 34311, the power output end of the driver 342 is connected to one of the transmission connections, so that the support 3431 is pulled to move, meanwhile, the connecting ropes and wires are connected to two sides of the transition block 34311, so that the connecting ropes and wires are positioned on a rotating axis, and the support 3431 is convenient to rotate around the extending direction of the connecting ropes and wires, so that the cutter head 3432 is turned over; connecting holes are formed in the two sides of the transition block 34311, so that the connecting ropes and wires can be conveniently connected with the transition block 34311; an elastic tensioning member 3423 is fixedly installed on the connecting hole, the upper cutter portion 343 is connected to the connecting rope and the connecting wire through the elastic tensioning member 3423, so as to drive the upper cutter portion 343 to move, the elastic tensioning member 3423 comprises a spring, when the connecting rope and the connecting wire are pulled, the elastic tensioning member 3423 is tensioned, so as to ensure the tension of the connecting rope and the connecting wire, and simultaneously, when the upper cutter portion 343 collides, a certain impact force is absorbed through the elastic tensioning member 3423, so as to reduce the impact force between the upper cutter portion 343 and the limit stop 347.

The driving wheel 3437 comprises a rotatable wheel body 34371 and an elastic ring 34372 coated on the outer edge of the wheel body 34371, the elastic ring 34372 is coated on the outer side of the driving wheel 3437, and in the installation process, the side surface of the cutterhead 3432 is parallel to the base surface;

during use, the support 3431 is turned over to incline the cutter 3432 relative to the base surface, so that the cutter 3432 presses the driving wheel 3437 against the base surface, thereby ensuring that the driving wheel 3437 bears enough pressure to normally drive the cutter 3432 to rotate.

An extension mounting plate 3436 is mounted on the connecting block 34313, and the connecting block 34313 is connected with the extension mounting plate 3436 and forms a hollow accommodating cavity for accommodating the cutter head 3432;

a pressing elastic member 3433 is disposed in the accommodating chamber, and an elastic force of the pressing elastic member 3433 acts on a side of the cutter head 3432 opposite to the lower cutter portion 344, so that the cutter head 3432 is pressed against the abutting edge 3441.

The connecting block 34313 is further provided with a pressing member 3435, the pressing member 3435 is arranged on two sides of the cutter head 3432, and the pressing member 3435 comprises a roller 34351 for flattening the thin material;

the mounting bracket 341 includes a guide seat 3412 for guiding the sheet material conveying direction, the roller 34351 abuts against the guide seat 3412, the support 3431 is pushed to rotate around the central axis direction of the pivot of the driver 342 by the reverse supporting force of the guide seat 3412 to the roller 34351, and the support 3431 is pushed reversely by the pressing member 3435 to turn over; the pressing members 3435 are disposed at two sides of the cutter 3432 to ensure that the sheet between the two pressing members 3435 is flattened during the forming process;

the material pressing member 3435 further comprises a connecting rod 34352 and a buffer spring 34353, the connecting rod 34352 is mounted on the connecting block 34313 and can slide along the vertical direction, the buffer spring 34353 is arranged between the top end of the connecting rod 34352 and the connecting block 34313 to play a buffer role in pressing thin materials, meanwhile, one end of the connecting rod 34352, which is far away from the roller 34351, is close to the supporting part, the buffer spring 34353 is arranged between the connecting rod 34352 and the supporting part, and the supporting part is pushed by the material pressing member 3435 to drive the support 3431 to turn upwards so as to ensure that the cutter head 3432 inclines relative to the lower cutter part 344 to be pressed on the abutting edge 3441;

the two adjacent side surfaces of the buffer block 3438 are fixedly connected to the connecting block 34313 and the supporting portion, because the supporting portion is formed by partially bending the extending connecting block 34313, and the supporting portion is easily deformed when the pressing member 3435 pushes the supporting portion, the buffer block 3438 is fixed to the connecting block 34313 and the supporting portion, so as to reinforce the supporting portion and make it not easily deformed, wherein the fixing connection can be any one or more of welding, bonding, screws and other common fixing connection modes.

The guide holder 3412 is provided with a flattening press plate 345, the roller 34351 is pressed on the flattening press plate 345, and the thin material passes through a channel formed between the flattening press plate 345 and the guide holder 3412.

The positions of the mounting bracket 341 close to the two ends are provided with a detection portion 346 for detecting the position of the upper pressing portion 343, specifically, the detection portion 346 includes a photoelectric sensing module, wherein the detection end of the photoelectric sensing module is mounted on the mounting bracket 341, and the sensing block 34312 of the photoelectric sensing module is mounted at one end of the transition block 34311 corresponding to the connection block 34313.

The foregoing is merely a preferred embodiment of the utility model and is not intended to limit the utility model in any manner; those skilled in the art can readily practice the utility model as shown and described in the drawings and detailed description herein; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the utility model as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.

Claims (10)

1. A cutter mechanism of a printer, comprising:

a mounting bracket (341) on which a lower cutter portion (344) is mounted;

an upper cutter portion (343) that abuts against the lower cutter portion (344); and

a driver (342) for driving the upper cutter portion (343) to slide in the direction in which the lower cutter portion (344) extends;

wherein the mounting bracket (341) is provided with a limit stop (347) at the position of the mobile terminal of the upper cutter part (343);

the upper cutter part (343) comprises a support (3431), the support (3431) is mounted on the power output end of the driver (342), and a buffer block (3438) is arranged on the end face, corresponding to the limit stop (347), of the support (3431).

2. The cutter mechanism according to claim 1, wherein said support (3431) is in a cantilever structure, one end of said support (3431) is pivotally connected to the movable end of said driver (342), and the other end of said support (3431) is provided with a cutter head (3432);

the support (3431) can rotate along the pivoted position, so that the cutter disc (3432) inclines relative to the lower cutter part (344), and one side surface of the cutter disc (3432) is pressed on the interference edge (3441) of the upper cutter part (343).

3. The cutter mechanism according to claim 2, wherein the support (3431) comprises a transition block (34311) and a connecting block (34313) formed by extending one end of the transition block (34311) outwards, the transition block (34311) and the connecting block (34313) being integrally combined to form an L-shaped plate-like structure;

the transition block (34311) is pivoted with the movable end of the driver (342), and the cutter head (3432) is arranged on the connecting block (34313).

4. The cutter mechanism according to claim 3, wherein an extension mounting plate (3436) is mounted on said connecting block (34313), said connecting block (34313) being connected to said extension mounting plate (3436) and forming a hollow accommodating chamber therebetween for accommodating said cutter head (3432);

the containing cavity is internally provided with a pressing elastic piece (3433), and the elastic restoring force of the pressing elastic piece (3433) acts on the cutter head (3432) to provide the pressure of the cutter head (3432) on the abutting edge (3441).

5. The cutter mechanism according to claim 3, wherein a top portion of the connecting block (34313) is bent to form a support portion, and the buffer block (3438) is fixed at a bent corner position formed between the connecting block (34313) and the support portion.

6. The cutter mechanism according to claim 5, wherein said connecting block (34313) is further provided with a pressing member (3435), said pressing member (3435) is disposed on both sides of said cutter head (3432), one end of said pressing member (3435) is pressed against said mounting bracket (341) and the other end abuts against said supporting portion;

the counter supporting force of the mounting bracket (341) to the material pressing piece (3435) pushes the support (3431) to rotate around the central shaft direction of the pivot joint of the driver (342), so that the upper cutter part (343) inclines.

7. The cutter mechanism according to claim 5, wherein said connecting block (34313) is integrally combined with said supporting portion to form an L-shaped plate-like structure, and two adjacent sides of said buffer block (3438) are respectively attached to said connecting block (34313) and said supporting portion;

the buffer block (3438) is correspondingly attached to an included angle formed between the connecting block (34313) and the supporting part, and a smooth chamfer is arranged.

8. The cutter mechanism according to claim 2, wherein a side surface of the buffer block (3438) is flush with a side surface of the seat (3431) or protrudes from a side surface of the seat (3431).

9. The cutter mechanism according to claim 8, wherein said upper cutter portion (343) includes a drive wheel (3437) for driving said cutter head (3432) to rotate, with said drive wheel (3437) abutting against a base surface and said cutter head (3432);

the driver (342) drags the upper cutter part (343), and the driving wheel (3437) drives the cutter head (3432) to rotate around the pivoting shaft;

the mounting bracket (341) is provided with a bearing beam (3411), and the outer edge of the driving wheel (3437) is coated with an elastic ring (34372);

when the support (3431) is turned over, the cutter disc (3432) inclines towards the side of the bearing beam (3411), so that the elastic ring (34372) is pressed by the cutter disc (3432) to deform.

10. A cutter mechanism according to claim 3, wherein the driver (342) is provided with two transmission wheels in transmission connection, the two transmission wheels are in transmission connection through a transmission member, the transition block (34311) is fixedly provided with elastic tensioning members (3423) along two sides of the rotation axis direction thereof, and the elastic tensioning members (3423) are connected with the transmission member.

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