TWM242504U - A sheet-feeding apparatus - Google Patents

Description

M242504 V. Creation Instructions (1) The technical field to which the new type belongs This creation relates to a device used for business, which can be the same as, installation, and especially to a suitable installation. ^ 'Preparation ^ ^ ^ ^ ^ ^ Prior art / > Learning paper printing table for the new year's paper fixed paper, agricultural. ^ Qiqi m.', The main function is to facilitate the use of the paper at the same time can make paper The paper is quietly and quietly placed by the user, and the roller can smoothly feed the paper. The correct paper feeding position is to facilitate paper feeding. It is common in the market. (Please refer to Figure 1 for the server. For example, a feed of bamboo shoots is used as an example. First of all-paper 2 and paper setting =. Paper Λ set has a movable paper picking arm 1, Cheng, A Ε ζ ϋ. As shown in the figure, paper picking: paper picking roller 10, when the paper picking roller 1 leaves the paper surface without performing "quote 2", baffle 2 Will rise up as the paper s positioning ^ action

It is in contact with the stretcher 2 and is still at a preset position. Temple :: = Brother ib Figure ’During the paper feeding action, the movable floor 2 is lowered and located? Read the position J. At this time, the paper picking roller i descends to contact with the paper 3 and drives the paper J as described above. The baffle 2 in the conventional paper feeding device is used only from the $ position. Plate 2 must be in two positions to avoid affecting paper feed. However, due to the design of the paper feeding mechanism that guides the paper, it is reported that there is a lack of a α — the concubine is secretive. When the wheel 10 drives the paper forward, it re-feeds the paper in Gu Yi ^ Sheng Xi (Multi_feed) or unable

(miss-feed) phenomenon. κ, A

M242504 V. Creation Instructions (2), _ is the problem of multiple feeds (_i, feed) and missing feeds (miss-feed). The main purpose of this creation is to provide a paper-feeding device. As a function of positioning ^ ^ ^ ^ ^, it can more effectively assist in the introduction of paper. New content: A paper feeding device includes a paper pickup roller, a paper pickup shaft, and a baffle. The pickup shaft is threaded through the center of the pickup roller to drive the pickup roller to rotate. The aforementioned stretcher is rotated between a first position and a second position in a rotating manner, and abuts against the paper when the shutter is in the first position, and the paper is blocked by gravity when the stretcher is in the second position. The surface of the board slides. At this time, the paper picking roller contacts the paper and drives the paper forward. The baffle in the second position has a larger missing angle with the paper than the first position. The paper feeding device as described above further includes a driving element, which includes a fixing portion, a friction plate, and a spring, wherein the spring is connected to the fixing portion and the friction plate, and the fixing portion is fixed to the paper take-up shaft and the friction plate. Contact with the cam to drive the cam to rotate. In addition, as described above, the paper feeding device further includes a stopper, and the cam has a protruding portion, and when the cam rotates to a limit position, the protruding portion abuts the ^ block; where 'When the cam rotates to the limit position, The surface of the friction plate ^ / convex ^ slides. However, in order to make the above-mentioned objects, features, and advantages of this creation more obvious and easy to understand, the following specifically lists / preferred embodiments, together with the accompanying drawings, make a detailed description as follows. Implementation:

0535-1018ΐπ ^ 9Ν1); Α03049; ΤΚυΝ.ρί (1

M242504

Begging you first. Refer to Fig. 2a. "The paper feeding device of this creation is suitable for one thing ^ ^" such as a printer or scanner, which includes a paper picking roller R, take, axis L, a movable baffle 30, a The cam 4, a paper cassette 5 and the upper cover 6 °, as shown, the movable baffle 30 is connected to a torsion spring 31, so that the broadcasting plate 3 can be rotated between a first position 3 and a second position 3, ; 'The pickup roller R is fixedly connected to the pickup shaft L, and the cam 4 can rotate around the pickup shaft l' and has a recessed portion 410, and the baffle 30 abuts against the cam 4 when the baffle 30 is in the recessed portion 410 and The baffle 30 is positioned at the first position 3 described above. In addition, the cam 4 can rotate around the paper picking axis L in a clockwise direction and drive the shutter 30 to the second 'position 3'. Among them, the paper to be fed can be placed in the paper tray 5 in advance, and when the carrier 30 is located at the second position 3, the paper can be driven forward by the paper picking roller r to complete the paper feeding action. Next, please refer to FIG. 2b, the paper take-off shaft L is disposed between the paper take-up roller R and the center of the cam 4. The paper take-out shaft [also connected to the upper cover 6 as shown in the figure. The paper roller r is separated from the lower plate 3 at the same time. At this time, the paper plate r is located at the second position 3, and the plate 3 can be restored upward by the elastic force of the torsion spring 3 丨 and is located at the first position 3 (as indicated by the arrow direction). Show).

Furthermore, as shown in FIG. 2c, when the baffle 30 is located at the first position 3, it is approximately perpendicular to the paper direction. At this time, the paper S in the paper feeder 5 slides down in the direction of the paper feeder 5 due to gravity. And the abutment with the baffle 30, so the baffle 30 can have a paper positioning function. Please refer to FIG. 2d again, when the stretcher 30 is lowered and is located in the aforementioned second position 3, and then forms a large cool @ 角 'with the paper s at this time, through the smooth surface guide bow above the baffle 30 contacting the paper S 丨, The paper S located in the paper loading slot 5 can naturally follow the light, bone, and bone of the baffle 30 by gravity.

〇535-10181TOF9Nl); A03049; Tl (LIN.ptd M242504 V. Creation instructions (4) The surface slipped off. Among them, the baffle 3 quickly descended from the first position 3 (2C picture) to the second position 3 '(2d picture In the process of the paper s, the front end of the paper s and the baffle 3 have an instantaneous change due to the drop, so the position energy of the paper S is instantly converted into a kinetic energy. At this time, the paper located above is due to the Small friction, and a large sliding distance can be generated at the moment of falling of the fascia 3, so that it can not only drive the paper S forward naturally but be located under the pickup roller r, to avoid the iniss-feed ), While the paper S is sliding on the surface of the baffle 3, the effect of staggering and separating between the upper paper and the lower paper can be more effectively (as shown in Figure 2d). Therefore, it can be greatly improved. Know the problem of multiple paper feed (mu 11 ip 1 efe ed). Figure 2e is a schematic diagram showing that the baffle 30 can be rotated between the first position 3 and the second position 3 'by a torsion spring 31. Among them, the torsion spring 3 1 can be seen: for a reply The elastic force causes the stretcher 3 to return in the clockwise direction to be positioned at the first position 3 described above.

Please refer to Figs. 3a and 3b at the same time, in which the pickup shaft L is threaded in the pickup roller R, the cam 4 and a driving element j). In particular, the driving element D is used to drive the cam 4 to rotate, and includes a friction plate ρ, a spring P, and a fixing portion E; the fixing portion E is fixed to the paper taking shaft l, so as to take paper When the shaft L rotates, the pickup roller r and the driving element ρ are rotated, and at the same time, the cam 4 is brought into contact with the cam 4 through the friction plate F described above, and the cam 4 can be driven to rotate by friction. Please refer to FIG. 3b. In this creation, the cam 4 has an opening 40, one

24 M242504 V. Creation instructions (5) The contact part 41 and a stop part 42. The aforementioned paper take-up shaft L is disposed in the opening 40, and the recessed portion 41 〇 is located on the contact portion 41. The contact portion 41 is used to contact the baffle 30 and can drive the seeding plate 30 to the first position. The position 3 and the second position 3 ′ are changed between each other. In addition, the blocking portion 42 has a protruding portion 4 21 for restricting the cam 4 from rotating within an angle range. Next, referring to Figs. 4a and 4b, the stop portion 42 is used to restrict the rotation of the cam 4 within an angle range. As shown in the figure, when the cam 4 is rotated to a limit position in the counterclockwise direction (as indicated by the arrow direction), the large output portion 4 2 1 on the stop portion 4 2 is connected to the weight 6 1 connected to the upper cover 6. It abuts and cannot continue to rotate. As shown in the figure, at this time, the baffle plate 30 is located in the recessed portion 41 and is still in the first position 3, so that the paper s located in the paper tray 5 can be neatly set to a preset position and has a paper positioning mechanism. efficacy. On the contrary, as shown in Figure 4b, when you want to feed the paper (as shown by the arrow direction), Zhuo Shishi recognizes the z-list & turns to the second position 3,4 below, and: = 4. After falling to the bit-limit position with the aforementioned bumper 61 ;; 4. The output from the upper hole will be rotated to 7 fp ground, then the driving element D in the figure 3a is due to the ancient 'yellow P' of the machine. Now when the cam 4 rotates to a limit, it is provided with a spring shaft L. After holding Bindi driving the paper pick-up roller R and the drive,

Only slippage will occur between the cam 4 and the cam 4. The action of the friction plate F 1 during the dagger operation can be as described in Fig. 4b.

The action of feeding the paper, and the paper S is advanced by the pickup roller_

Page 9 M242504

M242504 Schematic illustration. Picture 1a, 1b is 2a, 2b is 2c, 2d, 2e. One position and the second position. Picture 3a is a diagram showing the rotation; Picture 3b is a picture 4a Fig. 4b shows the rotation to a limit position. Fig. 4c shows the rotation to a limit position. Explanation of symbols: 1 ~ paper picking arm 1 0 ~ paper picking roller 2 ~ baffle 2 0 ~ paper tray 3 ~ first position 3 '~ second position 3 0 ~ stretcher 3 1 ~ torsion spring 4 ~ cam 4 0 ~ Openings show the schematic diagram of the conventional paper feed mechanism; show the schematic diagram of the paper feed mechanism of this creation; the diagram shows the schematic diagram of the baffle turning between the paper feed mechanism of this creation; paper picking in the paper feed mechanism of this creation Schematic diagram of the cam in the paper feed mechanism of this book driven by the shaft; The intention of the cam in the counterclockwise direction in the paper feed mechanism of this creation; the intention of the cam in the clockwise direction in the paper feed mechanism of this creation; The stretcher returns to the first place in the paper feeding mechanism

0535-10181TWF9Nl); A03049; TKLIN.ptd Page 11 M242504 Brief description of the diagram 4 1 ~ contact 4 1 0 ~ recessed 4 2 ~ stop 4 4 1 ~ protruded 5 ~ feeder 6 ~ cover R ~ Pickup roller L ~ Pickup shaft D ~ Drive element P ~ Spring E ~ Fixed part F ~ Friction sheet S ~ Paper

0535-10181TWF9Nl); A03049; TKLIN.ptd Page 12

Claims (1)

M242504 VI. Patent application scope Γ ~ '— 1 1 · A paper feeding device includes a paper pickup roller; a baffle that rotates between a first position and a second position in a rotating manner. The baffle is in contact with a paper when the baffle is in the first position, and the paper slides by gravity on the surface of the broadcast board when the Tian Wen stretcher is in the second position. At this time, the paper picking roller contacts the paper and drives the paper. Moving forward, wherein the stretcher has a larger missing angle with the paper when compared to the first position when the stretcher is in the second position. 2. The paper feeding device according to item 1 of the patent application range further includes a torsion spring, wherein the torsion spring is connected to the baffle, and the baffle can rotate around the torsion spring. 3. The paper feeding device according to item 丨 of the patent application scope, wherein when the baffle plate is located at the first position, the baffle plate is approximately perpendicular to the paper. 4. The paper feeding device according to item i in the patent application range, wherein the torsion spring provides a return spring force to return the shutter to the first position. 5. If the paper feeding device of the first scope of the application for Zhejiang Province further includes a cam that rotates around the paper take-up shaft, wherein the cam contacts the baffle and brings each of the stretchers in the first position and the second position Switch between. 6. The paper feeding device according to item 5 of the patent application scope, wherein the cam has a recessed portion, and when the shutter is located in the first position / the shutter is simultaneously located in the recessed portion. i 7 · The paper feeding device according to item 5 of Shenjing's patent scope further includes a driving element having a fixing portion and a friction plate, wherein the fixing portion is fixed to the paper taking shaft 'and the friction plate is in contact with the cam To drive the cam to rotate. 8. The paper feeding device according to item 7 of the patent application scope, wherein the driving unit M242504 6. Scope of patent application The component further includes a spring connected to the fixing portion and the friction plate. 9. The paper feeding device according to item 5 of the patent application further includes a stopper fixed on the paper feeding device, and the cam has a protruding portion. When the cam rotates to a limit position, the protruding portion and The stop is abutted. 10. The paper feeding device according to item 9 of the patent application scope further includes a driving element having a fixing portion and a friction plate, wherein the fixing portion is fixed to the paper taking shaft, and when the cam rotates to the limit position Then, the friction plate slides on the surface of the cam. 0535-1018mF9Nl); A03049; TKLIN.ptd p. 14