CN205272886U - Cutter device and printer - Google Patents

Abstract

The utility model discloses a cutter device and printer, can make the movable sword that transships and stop to keep out of the way originated some position smoothly and to the not restriction of design of product, this cutter device includes through setting up disengaging gear mechanism for it: the dead knife module has the dead knife, movable cutting die piece, with the setting is overlapped from top to bottom to the dead knife module, the supporter has and set up on this supporter with the movable sword of the continuous paper of dead knife cooperation cutting and the driving source that is used for driving this movable sword, and disengaging gear mechanism, set up on the supporter, be located the driving source with between the movable sword, work as disengaging gear mechanism is when disconnected, movable sword is kept out of the way through an elastomeric element originated some position of movable sword.

Description

Cutter arrangement and printer

Technical field

The utility model relate to a kind of cut off printing after the cutter arrangement of continuous paper especially there is the cutter arrangement automatically recovering mechanism (gear clutch mechanism) and printer in its movable knife module.

Background technology

At present, in the cutter arrangement cutting off the continuous paper after printing, when its can moving knife excess load (overload) time drive this can the motor desynchronizing (imbalance) of moving knife, can will stop in this position by moving knife, therefore, it is provided with for manually make can the handle of moving knife action.

But, due in order to can access for manually make can the handle of moving knife action, so having the conditional shortcoming of the design to product (problem points).

Summary of the invention

In view of above-mentioned technical problem, the purpose of this utility model is to provide a kind of cutter arrangement and printer, and it can be kept out of the way initial point position and the design of product do not limited by moving knife smoothly by what arrange gear clutch mechanism and can make overload and stop.

First aspect, the cutter arrangement involved by the utility model, comprising: dead knife module, has dead knife; Movable knife module, overlaps up and down with described dead knife module, there is supporter and be arranged on this supporter coordinating the continuous paper of cutting with described dead knife can moving knife and for driving this can the driving source of moving knife; And gear clutch mechanism, be arranged on described supporter, described driving source and described can between moving knife, when described gear clutch mechanism is disconnected, described can moving knife by the first elasticity parts keep out of the way described can the initial point position of moving knife.

Further, in above-mentioned cutter arrangement, also comprise: detection device, be arranged on described can the rear end of moving knife, described whether can return to initial point position by moving knife for detecting, described detection device is starting point sensor.

Further, in above-mentioned cutter arrangement, described gear clutch mechanism when drive described can the driving direction reverse rotation in described driving source of moving knife time or carry out disconnected when described movable knife module is separated up and down with described dead knife module.

Further, in above-mentioned cutter arrangement, described dead knife module also projects upwards and is provided with stop member, described movable knife module is also provided with and the separating component coordinated before and after described stop member, and described gear clutch mechanism carries out disconnected in the way of being coordinated with described separating component by described stop member when described dead knife module is separated up and down with described movable knife module.

Further, in above-mentioned cutter arrangement, described stop member is the arm of long strip-board shape, and project upwards, in the way of described support side, the right side being arranged on described dead knife module by described arm, described separating component has plate member and the 2nd elasticity parts, described plate member has right part integratedly, centre portion and left part, described plate member is provided with projection on the aft end face of the close described right part in described middle portion, described 2nd elasticity parts are by plate member described in described projection resiliency supported, described plate member can by the resiliency supported of described 2nd elasticity parts make described right part and described left part rotate backward each other in the longitudinal direction and described right part protrude from the right side of described supporter in the way of keep flat and be arranged in the first groove on the right side of described supporter, described arm has the inclined-plane corresponding with the described right part of described plate member on the back side, described right part can be rotated forward along described inclined-plane by the resiliency supported of described 2nd elasticity parts with being separated up and down of described dead knife module along with described movable knife module, meanwhile, described left part rotates backward, described gear clutch mechanism can carry out disconnected in described left part while the described plate member when described movable knife module is separated up and down with described dead knife module makes described right part rotate forward along described inclined-plane by the resiliency supported of described 2nd elasticity parts in the way of rotating backward, described 2nd elasticity parts are compression springs.

Further, in above-mentioned cutter arrangement, described gear clutch organization establishes is in the recess of described supporter, and there is the first gear, 2nd gear and the 3rd gear, described first gear point circle diameter compared with described 2nd gear is little, point circle diameter is big compared with described 3rd gear, described first gear and described 2nd gear are overlapped in the way of concentric up and down integratedly by the first interconnecting piece, described can be driven by the offset cam portion being arranged on described supporter by moving knife, described offset cam portion has offset cam and overlaps the cam gear below this offset cam integratedly up and down by the 2nd interconnecting piece, described can carry out front and back reciprocating linear by the eccentric rotation of described offset cam and move by moving knife, described first interconnecting piece and described 2nd connection section are all screw rods, stud or screw.

Further, in above-mentioned cutter arrangement, described driving source is provided with and drives worm screw, described supporter is provided with described 3rd gear can the 2nd groove of circular arc that swings of left and right, described first gear is twisted spur gear, described 2nd gear, described 3rd gear and described cam gear are all straight tooth gears, described driving worm screw engages with described twisted spur gear, described 2nd gear engages with described 3rd gear, described driving source carries out engaging described 3rd gear motivating force being passed to and carrying out with described 2nd gear engaging with described twisted spur gear by described driving worm screw, described 3rd gear is separated with described cam gear when swinging to the left along described 2nd groove, engage with described cam gear when swinging to the right, described first groove is arranged on below described cam gear, one end open is in the right side of described supporter, the other end is connected with described recess, described 2nd groove is arranged in described recess, it is positioned at the lower section of described 3rd gear in the front of described 2nd gear, described driving source is step-by-step motor.

Further, in above-mentioned cutter arrangement, described 3rd gear is in the way of the driving direction reverse rotation of described step-by-step motor, or with when described movable knife module is separated up and down with described dead knife module, while described plate member makes described right part rotate forward along described inclined-plane by the resiliency supported of described 2nd elasticity parts, the mode that rotates backward of described left part swings to the left along described 2nd groove thus is separated with described cam gear, described can keep out of the way initial point position when described 3rd gear is separated with described cam gear by described first elasticity parts by moving knife.

Further, in above-mentioned cutter arrangement, described first elasticity parts are extension springs.

Second aspect, the printer involved by the utility model, printing portion, prints continuous paper; And above-mentioned cutter arrangement, be arranged on the downstream side of described printing portion, for cut off described printing portion print after described continuous paper.

According to cutter arrangement of the present utility model and printer, even if by stepper-motor and can arrange between moving knife gear clutch mechanism can moving knife excess load (overload) and when stopped in the cutting midway of paper, also can remove the paper of obstruction, and the design of product is not limited.

Accompanying drawing explanation

The accompanying drawing forming a part of the present utility model is used to provide of the present utility model it is further understood that schematic description and description of the present utility model is for explaining the utility model, does not form improper restriction of the present utility model. In the accompanying drawings:

Fig. 1 is the formation schematic diagram of the movable knife module representing the cutter arrangement involved by the first embodiment;

Fig. 2 represents that unloading of the first embodiment can the formation schematic diagram of movable knife module when connecting of the gear clutch mechanism of moving knife;

Fig. 3 be represent the first embodiment unload can the gear clutch mechanism of moving knife disconnected time the formation schematic diagram of movable knife module;

Fig. 4 is the formation schematic diagram representing the cutter arrangement adding arm (stop member) and separating component involved by the 2nd embodiment;

Fig. 5 be represent involved by the 2nd embodiment unload can the formation schematic diagram of cutter arrangement when connecting of the gear clutch mechanism of moving knife; And

Fig. 6 be represent involved by the 2nd embodiment unload can the gear clutch mechanism of moving knife disconnected time the formation schematic diagram of cutter arrangement.

Description of reference numerals

10 movable knife module 11 supporters

11a recess 11b first groove

11c the 2nd groove 12 can moving knife

12a cutter head 12b knife bar

12b1 opening 13 stepper-motor (driving source)

13a drives worm screw 14 connection section

15 extension springs (the first elasticity parts)

16 offset cam portion 16a offset cams

16a1 cylindrical projection 16b cam gear

20 gears to engage and disengage mechanism 20a first gears

20b the 2nd gear 20c the 3rd gear

30 arms (stop member) 30a inclined-plane

40 separating component 41 plate member

41b centre, 41a right part portion

41c left part

42 compression springs (the 2nd elasticity parts)

A aft end face a1 projection

Embodiment

It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually. Below with reference to the accompanying drawings and come the utility model is described in detail in conjunction with the embodiments.

First embodiment

Referring to figs. 1 through Fig. 3, the first embodiment is described. The cutter arrangement of the present embodiment be the printing portion (not shown) being arranged on printer downstream and for cut off printing portion print after the cutter arrangement of continuous paper. Cutter arrangement has a not shown dead knife module comprising dead knife and this dead knife module overlaps up and down, and have can the movable knife module 10 of moving knife 12. In addition, cutter arrangement carry out cut print after continuous paper in when can moving knife excess load (overload) time, driving can stepper-motor (driving source) 13 step-outs (imbalance) of moving knife 12, can will stop in this position by moving knife 12, therefore, arrange that be used for manually making can the handle (not shown) of moving knife 12 action. Owing to above-described formation and parts are all the prior aries of cutter arrangement, so being not repeated herein.

Meanwhile, the distinctive technology feature of the present embodiment be can moving knife 12 and drive and between the stepper-motor (driving source) 13 of moving knife 12, gear clutch mechanism 20 can be set, when clutch coupling mechanism 20 is cut off then can moving knife 12 just keep out of the way can the initial point position of moving knife 12.

As the mode making gear clutch mechanism 20 action, two kinds of modes of the first method involved by the first embodiment and second method (being described in detail in a second embodiment) can be selected according to end-use.

First, referring to figs. 1 through Fig. 3, the formation of the movable module of the cutter arrangement of the first method involved by the first embodiment is described.

Fig. 1 to be the formation schematic diagram of the movable knife module representing the cutter arrangement involved by the first embodiment, Fig. 2 be represent the first embodiment unload can the formation schematic diagram of movable knife module when connecting of the gear clutch mechanism of moving knife, Fig. 3 be represent the first embodiment unload can the gear clutch mechanism of moving knife disconnected time the formation schematic diagram of movable knife module.

As shown in Figure 1 to Figure 3, movable knife module 10 have supporter 11, can moving knife 12, stepper-motor (driving source) 13 and gear clutch mechanism 20. Supporter 11 is provided with recess 11a, the first groove 11b and the 2nd groove 11c (all aftermentioned). Can be arranged on supporter 11 by moving knife 12, the knife bar 12b that there is cutter head 12a and be connected with cutter head one, and coordinate the continuous paper of cutting with not shown dead knife. Knife bar 12b can be covered on supporter 11 slidingly back and forth by connection section 14. Stepper-motor (driving source) 13 can moving knife 12 for driving.

By Fig. 2 and Fig. 3 it will be seen that gear clutch mechanism 20 is arranged on supporter 11 is positioned at stepper-motor 13 and can between moving knife 12 (offset cam portion 16 described later). Gear clutch mechanism 20 is arranged in the recess 11a of supporter 11, and has the first gear 20a, the 2nd gear 20b and the 3rd gear 20c. First gear 20a point circle diameter compared with the 2nd gear 20b is little, and point circle diameter is big compared with the 3rd gear 20c. First gear 20a and the 2nd gear 20b are overlapped in the way of concentric up and down integratedly by the first interconnecting pieces such as such as screw rod, stud or screws.

Can be driven by the offset cam portion 16 being arranged on supporter 11 by moving knife 12. Offset cam portion 16 has offset cam 16a and overlaps the cam gear 16b below offset cam 16a integratedly up and down by the 2nd interconnecting pieces such as such as screw rod, stud or screws, and transmits power by the 3rd gear 20c carrying out engaging. Can carry out eccentric rotating thus carrying out front and back reciprocating linear and move through the strip opening 12b1 set by knife bar 12 by cylindrical protrusion 16a1 set on offset cam 16a by moving knife 12. Therefore, by carrying out with dead knife coordinating by dead knife with can cut off by the paper between moving knife 12.

Stepper-motor 13 is provided with and drives worm screw 13a, and supporter 11 is provided with the 3rd gear 20c can the 2nd groove 11c (with reference to Fig. 2 and Fig. 3) of circular arc that swings of left and right. Here, the first gear 20a is twisted spur gear, and the 2nd gear 20b, the 3rd gear 20c and cam gear 16b are all straight tooth gears. Driving worm screw 13a to engage with as the first gear (twisted spur gear) 20a, the 2nd gear 20b engages with the 3rd gear 20c. By driving, worm screw 13a carries out engaging the 3rd gear 20c motivating force being passed to and carrying out with the 2nd gear 20b engaging stepper-motor 13 with the first gear (twisted spur gear) 20a. 3rd gear 20c, when being separated with cam gear 16b when (the filled arrows direction to the left in Fig. 3) swings to the left along the 2nd groove 11c, carries out engaging transmission of drive force with cam gear 16b when when to the right, (the filled arrows direction to the right in Fig. 2) swings. First groove 11b is arranged on below cam gear 16b, and one end open is connected in the right side of supporter 11, the other end with recess 11a. 2nd groove 11c is arranged in recess 11a, is located at the lower section of the 3rd gear 20c in the front of the 2nd gear 20b.

In addition, cutter arrangement the rear end of moving knife 12 can also be provided with not shown starting point sensor (detection device), for whether detection can return to initial point position by moving knife 12. Specifically, when can moving knife 12 normal cutoff continuous paper time, starting point sensor will detect out and can return to initial point position thus stop the driving of stepper-motor 13 by moving knife 12. When can moving knife 12 excess load (overload) time, within the default specified time starting point sensor of cutter arrangement do not detect out can rearward end (can moving knife 12 do not return to initial point position) of moving knife 12 time, judge to stopped when cutting off by moving knife 12.

When gear clutch mechanism 20 connects as shown in figure 2, drive (being rotated counterclockwise) can the stepper-motor 13 of moving knife 12 for driving by rotating forward, worm screw 13a is driven to carry out with the first gear 20a of gear clutch mechanism 20 engaging the 3rd gear 20c motivating force being passed to and carrying out with the 2nd gear 20b engaging, and, 3rd gear 20c along the 2nd groove 11c to the right (the filled arrows direction to the right of Fig. 2) swing carry out engagement rotation with the cam gear 16b in offset cam portion 16 and to offset cam 16a transmission of drive force, by like this, offset cam 16a will drive and can carry out front and back reciprocating linear and move by moving knife 12, and cut off the continuous paper being between movable cutter 12 and not shown dead knife.

Be directed to this, when gear clutch mechanism 20 is disconnected can moving knife 12 kept out of the way by extension spring (the first elasticity parts) 15 can the initial point position (can moving knife 12 cut continuous paper after the starting position that should return) of moving knife 12. Here, so-called disconnected refer to gear clutch mechanism 20 be in can the connection of moving knife 12 (offset cam portion 16) separate stage, also it is exactly make to be in, with stepper-motor 13, the free state not having motivating force by moving knife 12 (offset cam portion 16).

Specifically, as shown in Figure 3, gear clutch mechanism 20 drive when reversing (turning clockwise) for drive can the stepper-motor 13 of moving knife 12 time, worm screw 13a is driven to carry out with the first gear 20a of gear clutch mechanism 20 engaging the 3rd gear 20c motivating force being passed to and carrying out with the 2nd gear 20b engaging, and, 3rd gear 20c is along the 2nd groove 11c (the filled arrows direction to the left of Fig. 3) swing to the left thus is separated with the cam gear 16b in offset cam portion 16, and then offset cam 16a does not engage and be in state freely with the 3rd gear 20c because of cam gear 16b, at this moment, this kind of above-mentioned situation is called that gear clutch mechanism is disconnected. by like this, starting point position can will be kept out of the way by extension spring 15 by moving knife 12.

In addition, even if the rotation of moving knife 12 offset cam 16a freedom can be turned into, also had by extension spring 15 near offset cam 16a upper dead point (the roughly trapezoidal projection upwards along offset cam 16a cam edge corresponding with cylindrical projection 16a1 shown in Fig. 2 or Fig. 3) and keep out of the way less than can the situation of initial point position of moving knife 12, but cut off owing to the 3rd gear 20c of gear clutch mechanism 20 connects, even if so can moving knife 12 also kept out of the way by the action of very little external force such as opening and closing bill lid can the initial point position of moving knife 12. What deserves to be explained is, the amount that the 3rd gear 20c is separated with cam gear 16b, as long as be also exactly stepper-motor 13 is reversed to drive the amount offset cam 16a of the 3rd gear 20c just to become the amount of state freely just passable.

According to above formation, by the driving direction reverse rotation of stepper-motor 13,3rd gear 20c is swung to the left along the 2nd groove 11c by the transmission of drive force carrying out engaging with the 2nd gear 20b thus is separated with cam gear 16b, by like this, initial point position can be kept out of the way by extension spring 15 by moving knife 12.

By adopting such formation, though can moving knife 12 excess load (overload) and paper cutting midway stopped time, it is also possible to remove hinder paper, and, the design of product is not limited.

2nd embodiment

Then, with reference to Fig. 4 to Fig. 6, the second method involved by the 2nd embodiment is described. The mode that second method uses when movable knife module 10 can be separated freely up and down with not shown dead knife module.

Owing to the cutter arrangement of the 2nd embodiment adds arm (stop member) and separating component on the basis of the cutter arrangement of the first embodiment, therefore only the Structure and function of the parts different from the first embodiment is described, and to the additional same-sign of the formation identical with the first embodiment also suitable detailed.

Fig. 4 be represent the formation schematic diagram of the cutter arrangement adding arm (stop member) and separating component involved by the 2nd embodiment, Fig. 5 be represent involved by the 2nd embodiment unload can the formation schematic diagram of cutter arrangement when connecting of the gear clutch mechanism of moving knife, Fig. 6 be represent involved by the 2nd embodiment unload can the gear clutch mechanism of moving knife disconnected time the formation schematic diagram of cutter arrangement.

As shown in Figures 4 to 6, cutter arrangement is being positioned in the not shown dead knife module below movable knife module 10 to project upwards be provided with arm (stop member) 30, the separating component 40 being provided with on movable knife module 10 with coordinating before and after arm (stop member) 30. Gear clutch mechanism 20 is carried out disconnected (with reference to Fig. 5 and Fig. 6) in the way of being coordinated with separating component 40 by arm (stop member) 30 when dead knife module is separated up and down with movable knife module.

By Fig. 5 and Fig. 6 it will be seen that arm 30 is long strip-board shape, and project upwards, in the way of supporter 11 side, the right side (being namely positioned at the right side of supporter 11) being arranged on dead knife module by arm. Separating component 40 has plate member 41 and compression spring (the 2nd elasticity parts) 42. Plate member 41 has right part 41a, centre portion 41b and left part 41c integratedly. Plate member 41 is projecting to rear on the aft end face A of the close right part 41a of centre portion 41b raised a1. Compression spring 42 is by projection a1 resiliency supported plate member 41. Plate member 41 can by the resiliency supported of compression spring 42 make right part 41a and left part 41c rotate backward each other in the longitudinal direction and right part 41a protrude from the right side of supporter 11 in the way of keep flat (surface that surface is no more than supporter 11) and be arranged in the first groove 11b on the right side of supporter 11. Here, the maximum width of described plate member 41 is less than the width of described first groove 11b, by like this, plate member 41 can rotate freely. Arm (stop member) 30 has the inclined-plane 30a corresponding with the right part 41a of plate member 41 on the back side.

Right part 41a can along with being separated up and down of movable knife module 10 and dead knife module (arm 30 moves according to the downward solid heart direction of arrow in Fig. 6) by the resiliency supported of compression spring 42 along inclined-plane 31a forward (the filled arrows direction forward of Fig. 6) rotate, meanwhile, left part 41c rotates backward. By like this, gear clutch mechanism 20 can carry out disconnected by left part 41c while the plate member 41 when movable knife module 10 is separated up and down with dead knife module makes right part 41a rotate forward along inclined-plane 30a by the resiliency supported of compression spring 42 in the way of rotating backward. Specifically, 3rd gear 20c of gear clutch mechanism 20 with when movable knife module 10 is separated (arm 30 moves according to the direction of the downward thick filled arrows of Fig. 6) up and down with not shown dead knife module, plate member 41 by the resiliency supported of compression spring 42 make right part 41a along inclined-plane 30a forward (the filled arrows direction forward of Fig. 6) rotate while the mode that rotates backward of left part 41c along the 2nd groove 11c to the left (the filled arrows direction to the left of Fig. 6) swing thus be separated with cam gear 16b.

On the other hand, gear clutch mechanism 20 from disconnected become connection time, when movable knife module 10 carries out combining (arm 30 moves) according to the solid heart direction of arrow upwards of Fig. 5 with dead knife module (Product Status), the right part 41a of the plate member 41 of separating component 40 the 3rd gear 20c that (the filled arrows direction backward in Fig. 5) makes gear clutch mechanism 20 backward to the right (the filled arrows direction to the right in Fig. 5) engage with cam gear 16b.

Gear clutch mechanism 20 is undertaken linking by left part 41c and the 3rd gear 20c and realizes above-mentioned connecting and disconnected action. That is, 41c the 3rd gear 20c when rotating forward in left part swings to the right along the 2nd groove 11c, and when rotating backward, the 3rd gear 20c swings to the left along the 2nd groove 11c.

Can moving knife 12 when the 3rd gear 20c is separated with cam gear 16b, owing to the offset cam 16a in offset cam portion 16 becomes freely, therefore keep out of the way initial point position by extension spring 15.

According to above formation, it is provided with arm (stop member) 30 by (being positioned at the right side of supporter 11) on the right side of dead knife module and project upwards, when movable knife module 10 is Product Status (arm 30 moves according to the solid heart direction of arrow upwards of Fig. 5) with dead knife module, the right part 41a of the plate member 41 of separating component 40 the 3rd gear 20c that (the filled arrows direction backward in Fig. 5) makes gear clutch mechanism 20 backward to the right (the filled arrows direction to the right in Fig. 5) engage with cam gear 16b, movable knife module 10 be fixed to (can moving knife 12 excess load) when module is separated (arm 30 moves according to the downward solid heart direction of arrow in Fig. 6) up and down, the right part 41a of the plate member 41 of separating component 40 forward (the filled arrows direction forward in Fig. 6) make the 3rd gear 20c of gear clutch mechanism 20 along the 2nd groove 11c to the left (the filled arrows direction to the left in Fig. 6) swing thus be separated with cam gear 16b, by like this, the offset cam 16a in offset cam portion 16 becomes freely, therefore, can moving knife 12 kept out of the way by extension spring can the initial point position of moving knife 12.

By adopting such formation, though can moving knife 12 excess load (overload) and paper cutting midway stopped time, it is also possible to remove hinder paper, and, the design of product is not limited.

The foregoing is only better embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims (10)

1. a cutter arrangement, it is characterised in that, comprising:

Dead knife module, has dead knife;

Movable knife module, overlaps up and down with described dead knife module, there is supporter and be arranged on this supporter coordinating the continuous paper of cutting with described dead knife can moving knife and for driving this can the driving source of moving knife; And

Gear clutch mechanism, is arranged on described supporter, described driving source and described can between moving knife, when described gear clutch mechanism is disconnected, described can moving knife by the first elasticity parts keep out of the way described can the initial point position of moving knife.

2. cutter arrangement according to claim 1, it is characterised in that, also comprise:

Detection device, be arranged on described can the rear end of moving knife, described whether can return to initial point position by moving knife for detecting,

Described detection device is starting point sensor.

3. cutter arrangement according to claim 2, it is characterised in that,

Described gear clutch mechanism when drive described can the driving direction reverse rotation in described driving source of moving knife time or carry out disconnected when described movable knife module is separated up and down with described dead knife module.

4. cutter arrangement according to claim 3, it is characterised in that,

Described dead knife module also projects upwards and is provided with stop member, and described movable knife module is also provided with and the separating component coordinated before and after described stop member,

Described gear clutch mechanism carries out disconnected in the way of being coordinated with described separating component by described stop member when described dead knife module is separated up and down with described movable knife module.

5. cutter arrangement according to claim 4, it is characterised in that,

Described stop member is the arm of long strip-board shape, and projects upwards, in the way of described support side, the right side being arranged on described dead knife module by described arm,

Described separating component has plate member and the 2nd elasticity parts, and described plate member has right part, centre portion and left part integratedly,

Described plate member is provided with projection on the aft end face of the close described right part in described middle portion, described 2nd elasticity parts are by plate member described in described projection resiliency supported, described plate member can by the resiliency supported of described 2nd elasticity parts make described right part and described left part rotate backward each other in the longitudinal direction and described right part protrude from the right side of described supporter in the way of keep flat and be arranged in the first groove on the right side of described supporter

Described arm has the inclined-plane corresponding with the described right part of described plate member on the back side,

Described right part can be rotated forward along described inclined-plane by the resiliency supported of described 2nd elasticity parts with being separated up and down of described dead knife module along with described movable knife module, and meanwhile, described left part rotates backward,

Described gear clutch mechanism can carry out disconnected in described left part while the described plate member when described movable knife module is separated up and down with described dead knife module makes described right part rotate forward along described inclined-plane by the resiliency supported of described 2nd elasticity parts in the way of rotating backward

Described 2nd elasticity parts are compression springs.

6. cutter arrangement according to claim 5, it is characterised in that,

Described gear clutch organization establishes is in the recess of described supporter, and has the first gear, the 2nd gear and the 3rd gear,

Described first gear point circle diameter compared with described 2nd gear is little, and point circle diameter is big compared with described 3rd gear,

Described first gear and described 2nd gear are overlapped in the way of concentric up and down integratedly by the first interconnecting piece,

Described can be driven by the offset cam portion being arranged on described supporter by moving knife,

Described offset cam portion has offset cam and overlaps the cam gear below this offset cam integratedly up and down by the 2nd interconnecting piece, described can carry out front and back reciprocating linear by the eccentric rotation of described offset cam and move by moving knife,

Described first interconnecting piece and described 2nd connection section are all screw rod, stud or screw.

7. cutter arrangement according to claim 6, it is characterised in that,

Described driving source is provided with and drives worm screw, described supporter be provided with described 3rd gear can the 2nd groove of circular arc that swings of left and right,

Described first gear is twisted spur gear,

Described 2nd gear, described 3rd gear and described cam gear are all straight tooth gears,

Described driving worm screw engages with described twisted spur gear, and described 2nd gear engages with described 3rd gear,

Described driving source carries out engaging described 3rd gear motivating force being passed to and carrying out with described 2nd gear engaging with described twisted spur gear by described driving worm screw,

Described 3rd gear is separated with described cam gear when swinging to the left along described 2nd groove, engages with described cam gear when swinging to the right,

Described first groove is arranged on below described cam gear, and one end open is connected in the right side of described supporter, the other end with described recess,

Described 2nd groove is arranged in described recess, is positioned at the lower section of described 3rd gear in the front of described 2nd gear,

Described driving source is step-by-step motor.

8. cutter arrangement according to claim 7, it is characterised in that,

Described 3rd gear is when in the way of the driving direction reverse rotation of described step-by-step motor or to be separated up and down with described dead knife module at described movable knife module, while described plate member makes described right part rotate forward along described inclined-plane by the resiliency supported of described 2nd elasticity parts, the mode that rotates backward of described left part swings to the left along described 2nd groove thus is separated with described cam gear

Described can keep out of the way initial point position when described 3rd gear is separated with described cam gear by described first elasticity parts by moving knife.

9. cutter arrangement according to any one of claim 1 to 8, it is characterised in that,

Described first elasticity parts are extension springs.

10. a printer, it is characterised in that, comprising:

Printing portion, prints continuous paper; And

Cutter arrangement according to any one of claim 1 to 9, is arranged on the downstream side of described printing portion, for cut off described printing portion print after described continuous paper.