The automatic carriage device
Technical field
The utility model relates to a kind of automatic carriage device, particularly relates to a kind ofly in a minute cardboard periphery a plurality of convex structures being set, and can reach effectively to regulate the chart drive assembly that pickup roller puts on the strength on the branch cardboard.
Background technology
Automatic carriage device (ADF, Automatic Document Feeder, claim the autoamtic paper feeding machine again), in order to paper is sent into the device of chart drive assembly, this chart drive assembly can be the device that scanner, facsimile apparatus, chopping machine, duplicator or the like are provided with paper box, more than on paper can be separated and sends in the chart drive assembly by the automatic carriage device to carry out the subsequent treatment operation, as scanning, fax, printing, photomechanical printing or the like.
At first see also traditional automatic carriage device shown in Figure 1, this chart drive assembly 10 has a paper box 11, this paper box 11 can open 20 for putting plurality of sheets of paper, be provided with one a fen cardboard 12 and a pickup roller 13 at the joining place 111 of chart drive assembly 10 and paper box 11, be provided with an elastic component 14 in minute cardboard 12 bottoms, the top of branch cardboard 12 is resisted against the bottom of pickup roller 13 by the elastic force of this elastic component 14, this pickup roller 13 has one towards chart drive assembly 10 inside and the moving direction of axle of dividing cardboard 12, by the Clamping force of minute cardboard 12 with pickup roller 13, and pickup roller 13 power and the friction force that produce when rotating, can drive paper 20 and enter chart drive assembly 10; And major defect that should tradition automatic carriage device is, this minute cardboard 12 only support by this elastic component 14, make and divide a cardboard 12 to present direction-free vibrating state, can't effectively reach adjusting and put on strength on the branch cardboard 12 by pickup roller 13.
See also Fig. 2 again, a kind of " the automatic carriage device of tool automatically regulating function " (No. the 501977th, novel patent announcement in Taiwan), same, this chart drive assembly 30 has a paper box 31, this paper box 31 can open 20 for putting plurality of sheets of paper, be provided with one a fen cardboard 32 and a pickup roller 33 at the joining place 311 of chart drive assembly 30 and paper box 31, be provided with an elastic component 34 in minute cardboard 32 bottoms, the top of branch cardboard 32 is resisted against the bottom of pickup roller 33 by the elastic force of this elastic component 34, this pickup roller 33 has one towards chart drive assembly 30 inside and the moving direction of axle of dividing cardboard 32, this pattern characteristics is that branch cardboard bottom is provided with an adjustable column 321, the top 322 of this adjustable column 321 is fixed in branch cardboard 32,323 corresponding sections that are articulated in chart drive assembly 30, bottom, by the Clamping force of minute cardboard 32 with pickup roller 33, and pickup roller 33 power and the friction force that produce when rotating, can drive paper 20 and enter chart drive assembly 30, and the major defect of this automatic carriage device is, this minute cardboard 32 pining down because of adjustable column 321, only can make the up-and-down movement of vertical direction, still can't effectively reach adjusting and put on strength on the branch cardboard 32 by pickup roller 33.
The utility model content
Main purpose of the present utility model is to provide a kind of automatic carriage device, its minute cardboard around be provided with convex structure with regulatory function, therefore can reach the function of regulating the pickup roller application of force effectively.
The purpose of this utility model is achieved in that promptly provides a kind of automatic carriage device, and in order to paper is sent in the paper chart drive assembly to carry out the paper process operation, this automatic carriage device comprises: a pickup roller is arranged at the paper feed end of chart drive assembly; One fen cardboard, be arranged at aforementioned pickup roller below, this minute cardboard and pickup roller between form a passage that passes through for paper, this minute the cardboard periphery be provided with a plurality of convex structures, one end of this convex structure is connected with in a minute cardboard, and the other end then is hubbed in the chart drive assembly; When driving the pickup roller rolling, can drive paper and enter in the chart drive assembly, provide the branch cardboard to have many point of adjustment by this convex structure, effectively to regulate the pressure that pickup roller puts on the branch cardboard equably.
Description of drawings
Fig. 1 is the generalized section that has away paper structure now;
Fig. 2 is the another kind of generalized section that has away paper structure now;
Fig. 3 A to Fig. 3 C is forward sight, side-looking, the schematic top plan view of the utility model preferred embodiment;
Fig. 4 A to Fig. 4 C is forward sight, side-looking, the birds-eye view of another preferred embodiment of of the present utility model minute cardboard.
The specific embodiment
See also Fig. 3 A to Fig. 3 C, a kind of automatic carriage device of the present utility model, in order to paper 20 is sent in the chart drive assembly 40 to carry out the paper process operation, by this automatic carriage device can with paper 20 many send in the chart drive assembly 40 to carry out the subsequent treatment operation, as scanning, fax, print, xerox or the like, this chart drive assembly 40 has a paper box 41, this paper box 41 can open 20 for putting plurality of sheets of paper, joining place 411 at chart drive assembly 40 and paper box 41 is provided with a pickup roller 43, below pickup roller 43, be provided with one fen cardboard 42, be provided with an elastic component 44 in minute cardboard 42 bottoms, forming a passage 431 between this pickup roller 43 and the branch cardboard 42 passes through for paper 20, this minute, cardboard 42 was a rectangular contact surface 421 towards the face of pickup roller 43, can be if necessary in lining one rubber layer on this contact surface 421, friction force when contacting with pickup roller 43 or paper 20 with increase, contact surface 421 central sections be provided with one with the spine 422 of pickup roller 43 coaxial extensions, forming wire by spine 422 with pickup roller 43 contacts, again this minute cardboard 42 four sides respectively be provided with a convex structure 423, this convex structure 423 can be the rectangle column (shown in this figure embodiment) with a length, also can be cylindric or other projection external form.
Aforementioned this minute, cardboard 42 was arranged in the groove 45 with elastic component 44, divide cardboard 42 and groove 45 to be easy fit, this groove 45 is made of with cell wall 452 cell body 451, this cell body 451 has grab 453 and can hook together in cell wall 452,44 of elastic components are located in cell body 451 and divide between the cardboard 42, be provided with projection 455 in cell body 451 and elastic component 44 placements that correspond to of dividing cardboard 42,424, by projection 455,424 provide the usefulness of elastic component 44 location, can guarantee that cell body 451 is located in elastic component 44 therebetween with dividing cardboard 42, avoid elastic component 44 displacements, secondly, convex structure 423 places that correspond at cell wall 452 are provided with fitting portion 454, the respective outer side edges convex structure 423 of this fitting portion 454 and deciding, its effect is easy fit for convex structure 423 and is embedded at interior and unlikely dropping out and gets final product, and in the present embodiment, this fitting portion 454 penetrates this cell wall 452, in being inserted in for this column convex structure 423 with a length, and convex structure 423 is easy fit with fitting portion 454.
Thus, divide cardboard 42 chimeric and can be positioned groove 45 tops by convex structure 423 and fitting portion 454, and the elastic force contact by this elastic component 44, make branch cardboard 42 can with pickup roller 43 mutually against, drive this pickup roller 43 and have one towards chart drive assembly 40 inside and the moving direction of axle of dividing cardboard 42, when pickup roller 43 rotates, by the Clamping force of minute cardboard 42 with pickup roller 43, and pickup roller 43 power and the friction force that produce when rotating, can drive paper 20 and enter chart drive assembly 40, owing to divide cardboard 42 four sides to be provided with the convex structure 423 of regulating usefulness, the strong point with position, four directions can be shared pickup roller 43 application of forces, therefore cardboard can reach pickup roller 43 really evenly the application of force is on minute cardboard 42 this minute, and branch cardboard 42 can be regulated effectively by pickup roller 43 and be applied to strength on the branch cardboard 42.
See also Fig. 4 A to Fig. 4 C again, this minute, cardboard 52 was that with the difference of aforementioned minute cardboard 42 its contact surface 521 is a planar rectangular, respectively be provided with a convex structure 523 at minute cardboard 52 four sides, be provided with the fixedly projection 524 of elastic component in minute cardboard 52 bottoms, contact surface 521 by the plane contacts with pickup roller 53, because the outer peripheral edges of pickup roller 53 have radian, therefore also can contact with 521 one-tenth wire of contact surface, can optionally determine the rubber layer that whether on this contact surface 521, is covered.
In sum, characteristics of the present utility model are that being provided with of its minute cardboard has regulatory function on every side The convex structure, therefore can effectively reach the function of regulating the pickup roller application of force.