CN1210161C

CN1210161C - Printer

Info

Publication number: CN1210161C
Application number: CN 02151792
Authority: CN
Inventors: 李翀; 中垣祐二; 穴户满春
Original assignee: JIANGYUYINGMEI INFORMATION SCIENCE AND TECHNOLOGY Co Ltd
Current assignee: Kongyue Information Industry Co ltd
Priority date: 2002-12-31
Filing date: 2002-12-31
Publication date: 2005-07-13
Anticipated expiration: 2022-12-31
Also published as: CN1425563A

Abstract

The present invention discloses a printer. In the past, the strength of the elastic force of a driven roller is regulated according to the thickness of a piece of printing paper by an electromagnetic solenoid in general; after the elastic force is regulated to the needed intensity by the electromagnetic solenoid, the solenoid can continuously generates magnetic fields to enable the elastic force to be maintained in a set position as long as continuously having current. Because the need of continuous current, electricity can not be saved. In the printer of the present invention, a driven roller of the printer regulate the elastic force of a driving roller below the driven roller through a regulating mechanism, and at least one set of gear and fulcrum of a deformation driving mechanism of the regulating mechanism can rotate only in a signal direction and can not rotate in a reverse direction. After the driven roller has elastic force in a needed intensity by regulation, a power supply of a driving motor in the deformation driving mechanism is cut off, the elastic force between the driven roller and the driving roller still be maintained in a proper position. The present invention which can save electric power can be widely suitable for the manufacture of printers.

Description

Chopping machine

Technical field

The present invention relates to a kind of chopping machine, particularly relate to a kind of thickness according to employed printer paper, its driven cylinder is to the adjustable chopping machine of bullet relay of head roll.

Background technology

Existing printer is the purpose that reaches fed printing sheet with the mode of movement that head roll and driven cylinder are formed, generally, driven cylinder is to change according to the thickness of printer paper is different to the bullet relay of head roll, when printing individual sheets or continuous form, the power of the bullet relay between head roll and the driven cylinder need be adjusted, that is to say, when printing thin single-sheet stationery, the resistance of driven cylinder will be strengthened, and when printing thick continuous paper, a little less than will transferring when it plays relay than the printing single-sheet stationery, to use when it uses continuous paper really and drag the paper device, so even the bullet relay of driven cylinder is very weak also passable.According to the thickness of printer paper the power of the bullet relay of driven cylinder is adjusted at present and generally be to use o, after by this o desirable intensity being adjusted in the bullet relay of driven cylinder, also must in screw actuator, continue to have electric current produce magnetic field make play relay remain on the fixed position, its screw actuator also will remain on magnetic field state, not enough power saving.

Summary of the invention

After the object of the present invention is to provide a kind of its driven cylinder to be adjusted to the intensity of suitable bullet relay, be under the non-magnetic field state even the power supply of CD-ROM drive motor is cut off, the bullet relay of driven cylinder also can keep the chopping machine of the saving electric power of suitable power.

The technical solution adopted for the present invention to solve the technical problems is:

Chopping machine, comprise the lettering portion that printhead and marking roll are formed, be respectively equipped with before driving cylinder, rear driving drum that the mode that drives with rotation turns round and the driven cylinder of preceding driven cylinder and back that connects with each head roll bullet before and after the lettering portion, preceding driven cylinder, the driven cylinder in back pass through adjusting mechanism adjustment and the before driving cylinder of below, the bullet relay between the rear driving drum separately; Adjusting mechanism is made up of the regulating mechanism that plays preceding driven cylinder adjust bar, the driven cylinder adjust bar in back of front spring, the rear spring of relay, the swing that can rotate between driven cylinder before transmitting, the driven cylinder in back and following before driving cylinder thereof, the rear driving drum and regulate the deflection of each spring; The regulating mechanism of deflection is with the gear cluster transmission, with drive motor, and have at least in the gear cluster between one group of gear and its fulcrum and only to allow unidirectional rotation by clutch part and can not contrarotation, be hinged with arm with eccentric outer the placing of the transmission gear of gear cluster interlock, the upper end of arm can move around along the guide groove of being located on the chopping machine side plate, an end that transmits the spring that plays relay is connected with the upper end of this arm, the other end is connected with driven cylinder adjusting lever, and the side of adjusting mechanism is provided with its detecting device that arrives the reference position.

The invention has the beneficial effects as follows: owing on driven cylinder, adjusting mechanism is installed, the bullet relay of driven cylinder can be set to the thickness that is suitable for paper, simultaneously, even the power supply of CD-ROM drive motor is cut off, under the non-magnetic field state, effect by one-way clutch, gear cluster still can remain on the position that sets, and the bullet relay of driven cylinder is constant, still adapts to the thickness of printer paper, the electric current that CD-ROM drive motor need not continue is saved electric power.

Description of drawings

The invention will be further described below in conjunction with accompanying drawing.

Fig. 1 is the structural representation of the bullet relay of driven cylinder of the present invention adjusting mechanism when being in the most weak state;

Fig. 2 is the structural representation of the bullet relay of driven cylinder of the present invention adjusting mechanism when being in the strongest state.

The specific embodiment

With reference to Fig. 1, Fig. 2, this printer setup has lateral paper guide 10, be provided with two word car guide shafts 30 (illustrating) between the top of lateral paper guide 10, the biside plate 20, word vehicle frame 40 can move freely on word car guide shaft 30, and printhead 50 is installed on the word vehicle frame 40, and paper guiding device 51 is equipped with in the lower end of printhead 50, word vehicle frame 40 moves around along word car guide shaft 30, the print meedle that drives in the printhead 50 moves around, and clashes on the marking roll thereunder 60, thereby word is printed on the paper.The front end of chopping machine is provided with the paper platform 70 that uses single-sheet stationery, below paper platform 70, have use continuous paper drag paper device 80, the leading section of the paper platform 70 during with single-sheet stationery has up and down paper injection plate 71, when use drags paper device 80 to drag continuous paper, paper injection plate 71 is upwards opened, and continuous paper is delivered between printhead 50 and the marking roll 60.

Be respectively equipped with the conveyer of single-sheet stationery and continuous paper at paper feed end, paper delivery end.At the paper delivery end, this conveyer is made up of before driving cylinder 1 and preceding driven cylinder 2; At the paper delivery end, this conveyer is made up of the driven cylinder 21 of rear driving drum 11 and back, and before driving cylinder 1, rear driving drum 11 and preceding driven cylinder 2, the driven cylinder 21 in back are carried single-sheet stationery or continuous paper clamping.Before driving cylinder 1 is connected below paper guiding device 51 with rear driving drum 11, and drive by reversible drive motor (not looking among the figure), upper surface at before driving cylinder 1, rear driving drum 11 is connected with preceding driven cylinder 2, the driven cylinder 21 in back by playing relay, and driven cylinder is driven by head roll and rotates.

The present invention is respectively at preceding driven cylinder 2, on the driven cylinder 21 in back independent bullet relay adjusting mechanism is installed, and this adjusting mechanism is the front spring 31 that transmits the relay of head roll bullet to driven cylinder, rear spring 61 and the drive element that can adjust spring force, drive element comprises gear 25, arm 26, guide groove 27, gear 47, arm 48, guide groove 49 also comprises the

gear

37,22 of intermediate drive, 23,24,41,43,44 and the pulsed drive motor 100,200 of unidirectional rotation.

Before the gear cluster structure of bullet relay adjusting mechanism of driven cylinder 2 as follows, the axle drive shaft of CD-ROM drive motor 100 cog 37 with gear 22 interlocks, gear 22 again with miniature gears 23 interlocks, with the gear 24 of miniature gears 23 coaxial interlocks again with gear 25 interlocks.

Being constructed as follows of the deflection regulating mechanism of spring: the outer periphery of gear 25 is equipped with a rotating shaft 35, in this rotating shaft 35 arm 26 is arranged, and the upper end of arm 26 is provided with rotating shaft 36, moves around in the guide groove 27 that rotating shaft 36 can be provided with on side plate 20.One end and the rotating shaft 36 of front spring 31 are joined, the other end joins with an end that plays relay adjusting lever 32, adjusting lever 32 33 swings around the shaft, the lower end of adjusting lever 32 has mounting groove, axle 34 on the driven cylinder 2 is packed in the mounting groove, and preceding driven cylinder 2 is regulated by the deflection of front spring 31 with the bullet relay of before driving cylinder 1.

Simultaneously, in the gear cluster that transmits CD-ROM drive motor 100 power, be provided with the free-wheel clutch of can unidirectional rotation and can not contrarotation between gear 24 and the fulcrum 23 ' thereof, below gear, be provided with opto-electronic pickup 28.The bottom plane of structure of the transmitting terminal of opto-electronic pickup 28 and the arm between the receiving end 26 cuts off the light of transmitting terminal, and when sensor was cut off light to this, the bullet relay adjusting mechanism of driven cylinder 2 just arrived the reference position.

Shown in Figure 1, when when dragging paper device 80 that continuous paper is supplied to chopping machine, the bullet relay of preceding driven cylinder 2 must be turned down as far as possible.CD-ROM drive motor 100 is rotated,

gear cluster

37,22,23,24 transmissions, be transmitted to gear 25, make arm 26 move to the lowermost end of guide groove 27, the crosscut between the transmitting terminal of opto-electronic pickup 28 and receiving end of the bottom of arm 26 is disconnected, and CD-ROM drive motor 100 just stops operating, at this moment, the upper end of arm 26 and rotating shaft 36 are on the lowermost end position of guide groove 27, the front spring 31 of annular pulling force is in short status, and it is minimum that the bullet relay of adjusting lever 32 reaches, and the bullet relay of driven cylinder 2 relative before driving cylinders 1 is a minimum before this moment.

From paper platform 70 to the chopping machine supply single-sheet stationery time, the disconnected bottom that arrives of the bottom of arm 26 crosscut between the transmitting terminal of sensor 28 and receiving end, CD-ROM drive motor 100 startings, and with this position as benchmark according to the pulse count that sets begin the rotation,

gear cluster

37,22,23,24 transmission gears, 25 right-hand revolutions, arm 26 just rises to the top from the bottom position of guide groove 27, front spring 11 is tightened up, and by adjusting lever 32 transmissions, preceding driving drum 2 reaches maximum with the bullet relay of before driving cylinder 1.

Because front spring 31 has restoring force, arm 26 transmission gears 25 can appear, the phenomenon that gear 24 reverses is provided with a free-wheel clutch between gear 24 and its fulcrum 23 ', now even the power supply of CD-ROM drive motor 100 is cut off like this, be in the non-magnetic field state, when static moment does not change,

gear cluster

37,22,23,24 can both remain on the fixed position.

At the paper feed end, the adjusting mechanism basic comprising of the bullet relay of the driven cylinder 21 in back with top mention to go out paper end portion identical in fact, form by spring with the deflection regulating mechanism of gear cluster transmission and drive motor.In the gear cluster of adjusting mechanism, driven wheel of CD-ROM drive motor 200 41 and gear 42 interlocks, gear 42 be by in-line gears 43 and gear 44 interlocks, gear 44 interlocks again with miniature gears 45 interlocks, with the gear 46 and gear 47 interlocks of these miniature gears 45 coaxial interlocks.The regulating mechanism of regulating spring variable is that a rotating shaft 57 is arranged near the periphery of gear 47, arm 48 57 rotations around the shaft, and the upper end of arm 48 is provided with rotating shaft 58, and this rotating shaft can be slided in the crooked guide groove 49 on side plate 20.One of torsion rear spring 61 terminates in the rotating shaft 58, and the other end is connected on the adjusting lever 62, and adjusting lever 62 can be around axle 63 rotation, and below hold down groove is arranged, the driven cylinder 21 in back is installed in the groove by axle 64, elastic force passes to the driven cylinder 21 in back by adjusting lever 62.

In the gear cluster of the power that is used for transmitting CD-ROM drive motor 200, be provided with the free-wheel clutch of can unidirectional rotation and can not contrarotation between gear 46 and its fulcrum 45 '.

Below gear 47, be provided with opto-electronic pickup 90, the structure of this sensor is identical with the structure of top mentioned sensor, be provided with transmitting terminal and receiving end, but the bottom crosscut that arm 48 is arranged between two-port is disconnected light is blocked, this occlusion state is exactly the reference position of the bullet relay adjusting mechanism of the driven cylinder 21 in back.

The corrective action of bullet relay adjusting mechanism of the driven cylinder 21 in back is as follows: as Fig. 1, continuous paper must be transferred to the bullet relay of the driven cylinder 21 in back the most weak by dragging paper device 80 when the chopping machine paper supply, CD-ROM drive motor 200 rotations this moment, with

gear cluster

41,42,43,44,45,46 transmission and gear 47 is rotated moves down arm 48, the bottom crosscut of this arm is between the transmitting terminal of opto-electronic pickup 90 and receiving end the time, and CD-ROM drive motor 200 is just stopped the rotation.The rotating shaft 58 of arm 48 upper ends is in the lowest positions of guide groove 49 at this moment, rear spring 61 is in the state of opening to the greatest extent, the pressure of adjusting lever 62 is the most weak, after the pressure of 21 pairs of rear driving drums 11 of driven cylinder, that is to say that the friction force between driven cylinder 21 in back and the rear driving drum 11 reaches the most weak.

When single-sheet stationery by paper feeding paper platform 70 during to the chopping machine paper feeding, the crosscut between the transmitting terminal of sensor 90 and receiving end of the bottom of arm 48 is disconnected, and with this as the reference position, CD-ROM drive motor 200 is by the pulse count rotation that sets, with

gear cluster

41,42,43,44,45,46 transmissions are rotated gear 47 in a clockwise direction.When the rotating shaft 58 of arm 48 when the state of Fig. 1 becomes Fig. 2 and rises to the apical position of guide groove 49 like that, the open angle of spring leaf 61 diminishes, and makes the resistance of 21 pairs of rear driving drums 11 of the driven cylinder in back become maximum by adjusting lever 62.

Between gear 46 and its fulcrum 45 ', be provided with free-wheel clutch,, be in the non-magnetic field state, do not have static torsion even make the power supply of CD-ROM drive motor 200 be cut off,

gear cluster

41,42,43,44,45,46 can both remain on the fixed position, save electric power.

In the above-mentioned situation of mentioning, current driven cylinder 2, the resistance of the driven cylinder 21 in back are in maximum, minimum two when extreme, provide the adjustment of pulse count to CD-ROM drive motor 100,200, and it will rotate.Certainly, this resistance can divide multistage adjustment, makes resistance be set in suitable state with pulse count adjustment.When CD-ROM drive motor 100,200 startings when crosscut is disconnected between the transmitting terminal of sensor 28,90 and the receiving end of the bottom of

arm

26,48, and provide specific pulse count as benchmark to CD-ROM drive motor 100,200 with this position, resistance just can keep unifying.

In above-mentioned situation, the driven wheel of CD-ROM drive motor 100,200 is by gear cluster, and the transmission device of gear connecting rod etc. transmits, but also can be other suitable transfer mode.Generally, the electric power loop when CD-ROM drive motor 100,200 starts is one of each motor configurations, and the present invention then can set in turn by a circuit.

Claims

1. chopping machine, comprise the lettering portion that printhead (50) and marking roll (60) are formed, be respectively equipped with before and after the lettering portion before driving cylinder (1) that the mode that drives with rotation turns round, rear driving drum (11) and with preceding driven cylinder (2) and back driven cylinder (21) that each head roll bullet connects, it is characterized in that: preceding driven cylinder (2), after driven cylinder (21) pass through separately adjusting mechanism adjustment and the before driving cylinder (1) of below, the bullet relay between the rear driving drum (11); Adjusting mechanism is made up of the regulating mechanism of the deflection of the preceding driven cylinder adjust bar (32), back driven cylinder adjust bar (62) and each spring of adjusting that play front spring (31), the rear spring (61) of relay, the swing that can rotate between driven cylinder (2) before transmitting, back driven cylinder (21) and following before driving cylinder (1) thereof, the rear driving drum (11); The regulating mechanism of deflection is with the gear cluster transmission, with drive motor, and have at least in the gear cluster between one group of gear and its fulcrum and only to allow unidirectional rotation by clutch part and can not contrarotation, be hinged with arm with eccentric outer the placing of the transmission gear of gear cluster interlock, the upper end of arm can move around along the guide groove of being located on the chopping machine side plate, an end that transmits the spring that plays relay is connected with the upper end of this arm, the other end is connected with driven cylinder adjusting lever, and the side of adjusting mechanism is provided with its detecting device that arrives the reference position.