CN208684010U - A kind of printer and its output paper feeder - Google Patents

Abstract

The utility model discloses a kind of printer and its output paper feeders, including paper feeder ontology, paper feeder ontology is equipped with paper feeding roller group, paper feeding roller group includes that can be bonded to compress the active feeding-in roll of paper and driven paper feed roller, and the lift roller mechanism that can be lifted driven paper feed roller, be able to enter between active feeding-in roll and driven paper feed roller so as to paper.Output paper feeder provided by the utility model is when paper enters between active feeding-in roll and driven paper feed roller, lift roller mechanism can lift driven paper feed roller, expand the gap between the two, paper is facilitated to enter, on the one hand paper jam can be prevented, guarantees that paper is smoothly sent out printer；Another aspect active feeding-in roll and driven paper feed roller can use the rubber roller of surfacing, and photo is avoided to be damaged.

Description

A kind of printer and its output paper feeder

Technical field

The utility model relates to printer technology field, in particular to a kind of output paper feeder.The utility model also relates to And a kind of printer including above-mentioned output paper feeder.

Background technique

Photo-printer is sent out photo by paper advance mechanism after completing printing, and paper advance mechanism in the prior art has two Kind, it is a kind of that only there is active feeding-in roll, paper is sent out by the friction between active feeding-in roll and paper, due to the quality of paper Relatively light, friction is small between active feeding-in roll, which is easy to not send out paper because of reasons such as paper jams； Another includes active feeding-in roll and driven paper feed roller, and driven paper feed roller is equipped with lug boss, is applied by lug boss to paper Plus-pressure increases the frictional force between paper and active feeding-in roll, although this paper advance mechanism can guarantee that paper is smoothly sent out, But the lug boss on driven paper feed roller is easy to scratch in photo, seriously affects photographic quality.

Therefore, how to guarantee that photo can successfully send out printer on the basis of guaranteeing photographic quality is this field skill Art personnel's technical issues that need to address.

Utility model content

The purpose of the utility model is to provide a kind of output paper feeders, can will shine while avoiding damage photo Piece successfully sends out printer.The another object of the utility model is to provide a kind of printing including above-mentioned output paper feeder Machine.

To achieve the above object, the utility model provides a kind of output paper feeder of printer, including paper feeder sheet Body, the paper feeder ontology are equipped with paper feeding roller group, and the paper feeding roller group includes that can be bonded to compress the active paper feeding of paper Roller and driven paper feed roller, and the driven paper feed roller can be lifted, be able to enter so as to paper the active feeding-in roll and Lift roller mechanism between the driven paper feed roller.

Preferably, the lift roller mechanism includes feeding-in roll raising wire and the driving to lift the feeding-in roll raising wire Portion, the feeding-in roll raising wire and the paper feeder ontology are hinged, the feeding-in roll raising wire and the driven paper feed roller phase Even.

Preferably, the feeding-in roll raising wire includes lifting bar body and lifting bar body and to downward perpendicular to described The extension stretched, the driving portion include driving motor and lift roller cam, and the lift roller cam can be in the driving motor It is rotated by, the lower part of the extension is equipped with to the runner with the lift roller cam engagement.

Preferably, the paper feeder ontology is equipped with paper feeding roller group described in two groups, the two active paper feeding roll gaps 25~33mm.

Preferably, the extension of the two feeding-in roll raising wires is oppositely arranged, and the paper feeder ontology is equipped with to make The torsional spring that the two feeding-in roll raising wires are fallen.

Preferably, the paper feeding roller group is additionally provided with the detection device to detect paper position, the detection device and institute Driving motor is stated to be connected, the driving motor start and stop can be controlled according to paper position.

Preferably, the rear portion of the paper feeder ontology is additionally provided with the rear drive roll paper to be sent out to printer with after Driven voller.

The utility model additionally provides a kind of printer, including a kind of above-mentioned output paper feeder of anticipating.

Driven paper feed roller setting lug boss in the prior art is on the one hand to apply pressure to paper, and then increases paper Open the frictional force between active feeding-in roll；On the other hand be in order to increase between active feeding-in roll and driven paper feed roller between Gap needs the gap very little between driven paper feed roller and active feeding-in roll if the driven paper feed roller smooth using periphery, this The installation accuracy of paper advance mechanism can be made to require very high, be easier to cause paper jam if Rig up error.

In output paper feeder provided by the utility model, driven paper feed roller is connected with lift roller mechanism, when paper will be into When entering between active feeding-in roll and driven paper feed roller, lift roller mechanism driven paper feed roller can be lifted, increase active feeding-in roll with Gap between driven paper feed roller, after paper enters between active feeding-in roll and driven paper feed roller, lift roller mechanism is sent driven again Paper bowl is put down, this driven paper feed roller for allowing output paper feeder smooth using periphery, and output paper feeder is during installation Active feeding-in roll can be closely adhered to driven paper feed roller, on the one hand require to reduce to the installation accuracy of output paper feeder, separately On the one hand paper can also be enable to obtain biggish frictional force, guarantee that paper is successfully sent out printer.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also Other attached drawings can be obtained according to the attached drawing of offer.

Fig. 1 is the structural schematic diagram of output paper feeder provided by the utility model；

Fig. 2 be Fig. 1 in output paper feeder C to side view；

Fig. 3 be Fig. 1 in output paper feeder D to side view.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In order to make those skilled in the art more fully understand the utility model, with reference to the accompanying drawing and specifically The utility model is described in further detail for embodiment.

Fig. 1 to Fig. 3 is please referred to, Fig. 1 is the structural schematic diagram of output paper feeder provided by the utility model；Fig. 2 is In Fig. 1 export paper feeder C to side view；Fig. 3 be Fig. 1 in output paper feeder D to side view.

The output paper feeder of printer provided by the utility model, including paper feeder ontology 1, paper feeder ontology 1 is equipped with paper feeding roller group 2, and paper feeding roller group 2 includes that active feeding-in roll 21, driven paper feed roller 22 and lift roller mechanism 23, paper enter Between active feeding-in roll 21 and driven paper feed roller 22, the two fitting can compress paper, and the rotation of active feeding-in roll 21 being capable of band Dynamic paper is mobile, and paper is sent out printer；Lift roller mechanism 23 can lift driven paper feed roller 22, so that paper is able to enter Between active feeding-in roll 21 and driven paper feed roller 22.

Active feeding-in roll 21 is connected with active paper pushing motor 24 by belt or gear, as shown in Figure 1, active paper pushing motor 24 are located at the side of paper feeder ontology 1, and are able to drive the rotation of active feeding-in roll 21, by active feeding-in roll 21 and driven paper feed Paper between roller 22 sends out printer.

Paper enters from the side of output paper feeder, since active feeding-in roll 21 and driven paper feed roller 22 are needed from paper Two sides clamp the paper tightly, pressure between the two is larger, and paper hardly enters therebetween, thus the utility model be provided with lift Roller mechanism 23 lifts roller mechanism 23 for driven paper feed roller 22 when paper enters between active feeding-in roll 21 and driven paper feed roller 22 It lifts, paper is facilitated to enter.Lift roller mechanism 23 can be lifted driven paper feed roller 22 by cam or crank rotation.

Active feeding-in roll 21 and driven paper feed roller 22 usually select cylindric rubber roller, can since rubber roller side is more smooth It avoids scratching photo during conveying, while the contact area of rubber roller and paper is larger, can apply to paper larger Frictional force, guarantee paper smoothly sent out printer.The also settable baffle in the two sides of driven paper feed roller 22, baffle is from two lateral confinements The position of paper processed, prevents paper from glancing off during transportation.

In the present embodiment, output paper feeder is equipped with lift roller mechanism 23, and lift roller mechanism 23 can lift driven paper feed roller 22 It rises, can smoothly enter into paper between active feeding-in roll 21 and driven paper feed roller 22, avoid paper jam；In addition active feeding-in roll 21 and from Dynamic feeding-in roll 22 selects cylindric rubber roller, can be avoided printed photo and is scratched during submitting, and then ensure that Photographic quality.

Lifting roller mechanism 23 includes feeding-in roll raising wire 231 and driving portion, and the two sides of paper feeder ontology 1 are hinged with paper feeding Roller raising wire 231, driven paper feed roller 22 are located between the feeding-in roll raising wire 231 of two sides, and the feeding-in roll raising wire 231 of two sides is logical Interlocking bar 235 is crossed to be connected；Driving portion includes driving motor 232, and driving motor 232 is connected with cam or crankshaft, driving motor 232 Band moving cam or crank rotation, and then driven paper feed roller 22 is lifted.

Specifically, feeding-in roll raising wire 231 includes lifting bar body and extension, extension is perpendicular to lifting bar body simultaneously It extends downwardly, the lower part of extension is equipped with runner 234, and driving portion includes driving motor 232 and lift roller cam 233, driving motor 232 drive lift roller cam 233 to rotate by belt, and lift 233 runner 234 of roller cam fitting, lift roller cam 233 lifts feeding-in roll Bar 231 lifts, and separates driven paper feed roller 22 with active feeding-in roll 21, so make paper be able to enter active feeding-in roll 21 with from Between dynamic feeding-in roll 22, runner 234 can be rotated together with lift roller cam 233, be lifted with reducing lift roller cam 233 with feeding-in roll Friction between bar 231.

Since printer generally requires to convey various sizes of paper, if one group of feeding-in roll is only arranged in output paper feeder Group 2, when the lesser paper of delivery size, not can guarantee paper can successfully be sent out printer.Therefore, paper feeder sheet Body 1 is equipped with two groups of paper feeding roller groups 2, and distance is 25~33mm, certain user between active feeding-in roll 21 in two groups of paper feeding roller groups 2 It can according to need the setting multiple groups paper feeding roller group 2 in paper feeder ontology 1, or using between the active feeding-in roll 21 of other sizes Away from.

The active feeding-in roll 21 of each paper feeding roller group 2 is driven by same active paper pushing motor 24, guarantees each active paper feeding Roller 21 operates synchronously, and the feeding-in roll raising wire 231 in every group of paper feeding roller group 2 will be lifted successively, therefore every group of paper feeding roller group 2 can be set A driving motor 232 is set, each feeding-in roll raising wire 231 is controlled respectively.

After paper enters between active feeding-in roll 21 and driven paper feed roller 22, lift roller mechanism 23 is needed driven paper feed roller 22 put down, and are bonded active feeding-in roll 21 with clamping paper with driven paper feed roller 22.Driven paper feed roller 22 can be in gravity It falls and is bonded with active feeding-in roll 21, but due to driven paper feed roller 22 and lift the usual lighter weight of roller mechanism 23, It is difficult to clamp the paper tightly under gravity.

The extension of two feeding-in roll raising wires 231 is oppositely arranged, as shown in Figures 2 and 3, the feeding-in roll of two paper feeding roller groups 2 A and shaft B is rotated raising wire 231 around the shaft respectively, is equipped with torsional spring 25 therebetween, and paper feeder ontology 1 is equipped with fixed column, is turned round Spring 25 is sheathed on fixed column periphery, and extension upper end is equipped with sliding slot, and the tangential foot of the two of torsional spring 25 is overlapped with two sliding slots respectively, when sending When paper bowl raising wire 231 lifts, 25 elastic deformation of torsional spring is larger, applies downward elastic force to feeding-in roll raising wire 231；Paper feeding After roller raising wire 231 loses the lift support of roller cam 233, it can fall under the action of elastic force.

In the present embodiment, lift roller mechanism 23 can be lifted driven paper feed roller 22 under the drive of lift roller cam 233, two paper feedings Torsional spring 25 is equipped between roller raising wire 231, torsional spring 25 can apply downward resilient force to feeding-in roll raising wire 231, make Feeding-in roll raising wire 231 can fall after losing support and clamp the paper tightly with active feeding-in roll 21, in addition, in conveying paper In the process, torsional spring 25 can also apply downward elastic force to feeding-in roll raising wire 231, make active feeding-in roll 21 and driven paper feed Roller 22 clamps the paper tightly.

Paper feeding roller group 2 is additionally provided with detection device 26, and detection device 26 is connected with driving motor 232, when it detects paper When close to active feeding-in roll 21, start driving motor 232；Driving motor 232 drives lift roller cam 233 to rotate, and lifts roller cam 233 Driven paper feed roller 22 is supported, it is separated with active feeding-in roll 21 and generates gap, paper is facilitated to enter；Paper enters the gap Afterwards, driving motor 232 continues to rotate, and lifts the lug boss of roller cam 233 far from driven paper feed roller 22, loses driven paper feed roller 22 It supports and falls, and clamped the paper tightly with active feeding-in roll 21.

When paper leaves detection device 26, detection device 26 makes 232 power loss of driving motor；When user may also set up delay Between, it is electric that detection device 26 obtains driving motor 232,232 power loss of driving motor is made after delay time, certain user can also adopt Make 232 power loss of driving motor in other ways, as long as can guarantee the timely whereabouts clamping paper of feeding-in roll raising wire 231, It is not limited here.Detection device 26 can be specially infrared switch or pressure switch etc., and touch switch makes to drive when paper enters Dynamic motor 232 obtains electric rotation.

The rear portion of paper feeder ontology 1 is additionally provided with rear drive roll 31 and rear driven voller 32, and rear portion refers to be gone out close to printer The position of mouth.Paper finally sends out printer by rear drive roll 31 and rear driven voller 32, and rear drive roll 31 is also electric with active paper feeding Machine 24 is connected, and rotates under the drive of active paper pushing motor 24.Pressure afterwards between drive roll 31 and rear driven voller 32 is smaller, after The rotation of drive roll 31 and paper feed angle appropriate can bring photo paper between rear drive roll 31 and rear driven voller 32 into automatically. Paper feed angle appropriate refers to the gap after paper substantially face between drive roll 31 and rear driven voller 32.

Also settable guide plate between each active feeding-in roll 21 and active feeding-in roll 21 and rear drive roll 31, paper can be It moves under the drive of active feeding-in roll 21 along guide plate, and enters in next group of paper feeding roller group 2 under the guidance of guide plate, or into Enter between rear drive roll 31 and rear driven voller 32.

Optionally, the course of work of paper feeder is exported are as follows: the defeated paper feeding direction arrival along Fig. 2 and Fig. 3 of finished product photo is sent Paper bowl group 2, the detection device 26 in paper feeding roller group 2 detect that paper is close, make driving motor 232 it is electric, 232 turns of driving motor It moves and passes through lift roller cam 233 and support feeding-in roll raising wire 231, feeding-in roll raising wire 231 rotates around the axis and by driven paper feed Roller 22 lifts, and after paper enters the gap between active feeding-in roll 21 and driven paper feed roller 22, the rotation of driving motor 232 makes feeding-in roll Raising wire 231 loses support, and falls under the action of torsional spring 25, and then be bonded driven paper feed roller 22 with active feeding-in roll 21 It clamps the paper tightly, active feeding-in roll 21 rotates under the drive of active paper pushing motor 24, paper is sent out printer, paper reaches Afterwards when drive roll 31, active feeding-in roll 21 is continued to rotate, and pressure is smaller between rear drive roll 31 and rear driven voller 32, and paper is pushed into Afterwards between drive roll 31 and rear driven voller 32, so that rear drive roll 31 is clamped paper and advance, be finally completed paper output services.

In the present embodiment, paper feeder ontology 1 is provided with detection device 26, and detection device 26 can automatically detect paper Position, and driving motor 232 is started or stoped according to the position of paper, and then start or stop driving motor manually without user 232, the degree of automation of output paper feeder is improved, the operating burden of user is alleviated.

The utility model additionally provides a kind of printer, including the output paper feeder in any one of the above embodiment； Refer to the prior art for the structure of other each sections of printer, and repeats no more herein.

It should be noted that in the present specification, being such as used merely to an entity with second etc relational terms It is distinguished with other several entities, without necessarily requiring or implying between these entities, there are any this actual relationships Or sequence.

Printer provided by the utility model and its output paper feeder are described in detail above.It answers herein The principles of the present invention and embodiment are expounded with specific case, the explanation of above example is only intended to sides Assistant solves the method and its core concept of the utility model.It should be pointed out that for those skilled in the art, Without departing from the principle of this utility model, several improvements and modifications can be made to this utility model, these improvement It is also fallen into the protection scope of the utility model claims with modification.

Claims (8)

1. a kind of output paper feeder of printer, which is characterized in that including paper feeder ontology (1), the paper feeder sheet Body (1) be equipped with paper feeding roller group (2), the paper feeding roller group (2) include can be bonded with compress the active feeding-in roll (21) of paper and Driven paper feed roller (22), and the driven paper feed roller (22) can be lifted, so that paper is able to enter the active paper feeding Lift roller mechanism (23) between roller (21) and the driven paper feed roller (22).

2. output paper feeder according to claim 1, which is characterized in that the lift roller mechanism (23) includes feeding-in roll lift Rise bar (231) and the driving portion to lift the feeding-in roll raising wire (231), the feeding-in roll raising wire (231) with it is described Hingedly, the feeding-in roll raising wire (231) is connected paper feeder ontology (1) with the driven paper feed roller (22).

3. output paper feeder according to claim 2, which is characterized in that the feeding-in roll raising wire (231) includes lift It plays bar body and perpendicular to the extension for lifting bar body and extending downwardly, the driving portion includes driving motor (232) With lift roller cam (233), the lift roller cam (233) being rotated by the driving motor (232), the extension The lower part in portion is equipped with to the runner (234) with lift roller cam (233) cooperation.

4. output paper feeder according to claim 3, which is characterized in that the paper feeder ontology (1) is equipped with two groups The paper feeding roller group (2), distance is 25~33mm between the two active feeding-in rolls (21).

5. output paper feeder according to claim 4, which is characterized in that prolong two feeding-in roll raising wire (231) Extending portion is oppositely arranged, and the paper feeder ontology (1) is equipped with the torsional spring fall the two feeding-in roll raising wires (231) (25)。

6. output paper feeder according to claim 5, which is characterized in that the paper feeding roller group (2) is additionally provided with to examine The detection device (26) of paper position is surveyed, the detection device (26) is connected with the driving motor (232), can be according to paper Driving motor described in position control (232) start and stop.

7. output paper feeder according to any one of claims 1 to 6, which is characterized in that the paper feeder ontology (1) Rear portion be additionally provided with to by paper send out printer rear drive roll (31) and rear driven voller (32).

8. a kind of printer, which is characterized in that including output paper feeder described in claim 1 to 7 any one.