TWI320753B - - Google Patents

Description

1320753 IX. Description of the Invention: [Technical Field] The present invention relates to a transaction machine, and more particularly to an automatic paper feeding device that facilitates pick-and-place paper. [Prior Art]

As shown in FIG. 1 and FIG. 2, a paper feeding device of a photo printer includes a casing unit 1, a motor 2 mounted inside the casing unit 1, and a gear set capable of transmitting the motor power. 3. A paper feed roller set 4 driven by the gear set 3 and a pair of paper feed trays 5 to be mounted on the casing unit 1 by the paper feed roller set 4. The paper feed roller set 4 has an axle 401, a suspension 402 disposed on the axle 401, a runner 403 disposed inside the suspension 402 and fixed to the axle 401, and a runner 403 disposed thereon. a guide wheel 404 disposed laterally between the suspension 402, an idler pulley 405 coupled between the runner 403 and the guide wheel 404, and a set on the axle 401 and causing the suspension 402 to drive the A torsion spring 406 that the guide wheel 404 swings toward the paper feed tray 5. When the motor 2 is activated and power is transmitted by the gear set 3, and the guide wheel 404 is rotated clockwise in Fig. 1, the paper can be taken into the inside of the casing unit 1. The transmission structure of the paper feeding device is not only complicated, but also has high manufacturing cost, and the guide roller 404 of the paper feed roller set 4 is subjected to the action of the torsion spring 406, so that the guide roller 404 and the paper feed tray 5 are There is no gap between them, so when the paper is to be placed, the user needs to resist the elastic force of the torsion spring 406 to force the paper between the guide roller 404 and the paper feed tray 5. When printing 5 1320753 and the remaining paper is to be taken out, a lifting device (not shown) must be pressed to swing the suspension 402 and the guide wheel 404 downward so that the guiding wheel 404 and The paper feed tray 5 is separated, so that both hands are required to be taken when the paper is taken. Therefore, the paper feeding device is inconvenient in the paper feeding operation and the paper picking operation. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an automatic paper feeding device that facilitates picking and unloading of paper by interlocking other members with the operation of correcting the paper and facilitating paper feeding and smooth feeding. Thus, the automatic paper feeding device for facilitating pick-and-place paper of the present invention comprises a casing unit and a power unit mounted on the casing unit, a paper feed wheel set, and a paper feeding unit. The paper feed roller set is driven by the power unit to transport the paper toward the inside of the casing unit. The paper feeding unit has a cover plate, a paper feed tray pivoted relative to the paper feed wheel set and disposed on the cover plate, and a flexibility to provide the paper feed tray to maintain a tendency to swing toward the paper feed wheel set An element, a connecting rod that is slidably disposed on one side of the paper feeding plate, and a returning element that provides a recovery function after the connecting rod is operated, and the paper feeding plate can be separated from the paper feeding wheel set a pressing position that swings to a holding position on the paper feed roller set, the link has a shaft portion pivoted on the cover plate, and one end is on the side of the pivot portion and approaches a driving end portion of the paper feeding tray and a swaying end portion on the other side of the shaft pivot portion, the driving end portion having a locking portion for holding the paper feeding tray at the pressing position. Thereby, driving the connecting rod can disengage the clamping portion from the paper feeding tray, and cooperate with the elastic member to urge the paper feeding tray to automatically swing from the pressing position to the holding position' It achieves the goal of easy paper feeding and smooth paper feeding. [Embodiment] The foregoing and other technical contents, features, and advantages of the present invention will be apparent from the following detailed description of a preferred embodiment of the accompanying drawings. Note that, in the following description, 'similar elements are denoted by the same reference numerals. As shown in FIG. 3 and FIG. 4 , respectively, a schematic diagram of a three-dimensional appearance and a schematic diagram of a plane combination, a preferred embodiment of the automatic paper feeding device for facilitating pick-and-place paper of the present invention is applicable to a photo printing machine, and includes a The casing unit 1〇 and a power unit 2〇 mounted on the casing unit 1〇, a paper feed wheel set 3〇, and a paper feeding unit 40. The casing unit has a first end portion π, a second end portion 12 disposed opposite the first end portion 11 and a conveying platform 13 extending from the first end portion u to the second end portion 12 and Second, the frame 14 is disposed on two sides of the conveying platform 13. The power unit 20 has a motor 21 and a gear set 22 that transmits the power of the motor 21. The paper feed roller set 30 is a first end portion u corresponding to the casing unit 1 , and is driven by the power unit 20 to transport the paper toward the transport platform 13 of the casing unit 1 . As shown in the exploded view of FIG. 5, the paper feed roller set 3 has an axle 31 which is disposed on the frame 14 and is driven by the gear set 22, and a set of rollers 32 disposed on the axle 31. , a bushing 33 fixed on the axle 31 and located on the side of the roller 32, and a set of the roller 32 and the 7 1320753

A one-way spring 34 between the sleeves 33. The roller 32 has a convex tube portion 321 protruding in the axial direction. The opposite ends of the one-way spring 34 are sleeved on the convex tube portion 321 and the sleeve 33. The spiral direction of the one-way spring 34 In contrast to the paper feed direction of the roller 32, the arrangement of the sleeve 33 and the unidirectional elastic cyanine 34 is such that when the axle 31 is driven by the power unit 20, the roller 32 can only be rotated in one direction (eg, 4, the circle 11 is in the direction of the solid arrow, and the roller 32 is idling with respect to the axle 31 when it is driven in the reverse direction (as shown by the dotted arrows in FIGS. 4 and 11).

Referring to FIG. 6 and FIG. 7 respectively, an exploded perspective view of the paper feed unit 40 and a combined plan view 'the paper feed unit 40 is disposed on the casing unit 10 corresponding to the paper feed wheel set 3' A cover plate 41, a paper feed tray 42 pivotally mounted on the cover plate 41 relative to the paper feed wheel set 30, and an elastic member mounted between the paper feed tray 42 and the cover plate 41 43. A connecting rod 44 which is disposed on the side of the paper feeding plate 42 and a returning member 45 which is provided with the returning ability of the connecting rod 44 after being operated, is positioned on the cover plate 41 and is located at A positioning plate 46 on the top side of the paper feed tray 42 , a sliding plate 47 that can slide along the positioning plate 46 , and a linking plate 48 that is driven by the sliding plate 47 and can swing the connecting rod 44 . The cover plate 41 is disposed on the first end portion η of the frame unit 1 , and the cover plate 41 has an inner side surface 411 opposite to the paper feed roller 3 , and is spaced apart from the inner side surface. a pivoting 412 on the 411, a positioning groove 413 disposed in the u-shape and disposed under the pivoting arm 412, a protrusion 414 protruding from the inner side surface 411 and located on the side of the positioning groove 413, and two A baffle 415 above the pivots 412 and a pivot post 416 disposed on one side of the pivots 412. The paper feed tray 42 has a pivoting end portion 421 pivotally mounted on the pivoting ears 412, and a swinging end portion 422 disposed opposite the pivoting end portion 421, extending from the pivoting end portion 421 to The oscillating end portion 422 is provided with a clamping surface 423 for holding the paper, a bottom edge 424 disposed opposite the positioning surface 423, and a first and second sides engaging between the positioning surface 423 and the bottom edge 423 々Μ, 426, the first side 425 is convexly provided with a rib 425. The spring member 43 is a torsion spring and has a first end leg 431 nested in the positioning groove 413 and a second end leg 432 which abuts the paper feed plate 42. The connecting rod 44 has a pivoting end 441 pivoted on the pivot post 416 of the cover plate 41 at the bottom side of the shaft trailing portion 441 and is adjacent to the driving end portion 442 of the paper feeding tray 42 a sliding end portion 443 positioned on a top side of the shaft pivot portion 441 and a button hole 444 interposed between the driving end portion 442 and the shaft pivot portion 441, the driving end portion 442 having a nestable rib 425, a groove-shaped locking portion 445 and a guiding portion 446 which is inclined outside the locking portion 445. The returning member 45 is a return spring, and the preferred embodiment of the embodiment For example, the tension spring is hooked on the opposite end of the protrusion 414 and the button hole 444. The positioning plate 46 is mounted between the baffles 415 and has a laterally disposed guide channel 461. The sliding plate 47 has a guide post 471 that passes through the guiding groove 461 and is slidable along the guiding groove 46 J. The connecting plate 48 is L-shaped and is disposed between the looking cover 41 and the positioning plate 46, and has A latching hole η which can be nested and coupled to the guide post 471 and a pushing portion 482 opposite to the latching hole 481, the pushing portion 482 abutting against the tilting end portion 443 of the connecting rod 44. As shown in FIG. 8, it is a schematic diagram of the folding of the paper feeding unit 4, that is, when the printing machine is not in use, the cover 41 can be pulled toward the frame 14, and the paper feeding plate 42 is used. The pressing of the roller 32 of the paper feed roller set 3 is such that the swinging end portion 422 is swung toward and close to the inner side surface 411 of the cover plate 41. At this time, the elastic member 43 is pressed and contains a rebound elastic force. The carding portion 445 of the flail 44 can be snapped onto the rib 425 of the paper feed tray 42 (see FIG. 7), and the paper feed tray 42 is held in the depressed position. When the photo is to be printed, as shown in the operation diagram of FIG. 9, the user pulls the cover 41 away from the outside of the frame 14. At this time, since the locking portion 445 of the link 44 is still embedded. The paper is placed on the rib 425 of the paper feed tray 42 so that the paper feed tray 42 remains in the depressed position and a gap is formed between the positioning surface 423 and the roller 32 to facilitate paper discharge. 10 and FIG. 11 is a schematic diagram of the operation of the paper feeding unit 4 and the swinging circular circle of the paper feeding tray 42. When the user places the photo paper on the positioning plate 46 and the paper feeding tray 42, When the sliding plate 47 is pushed to the right to correct the photo paper, the movement of the sliding plate 47 will interlock the linking plate 48, and the pushing portion 482 of the linking plate 48 pushes the tilting end portion 443 of the connecting rod 44 again. When the connecting rod 44 is pivoted, the locking portion 445 of the driving end portion 442 is detached from the rib 425 of the paper feeding tray 42, and the swinging end portion 422 of the paper feeding tray 42 receives the elastic member. The elastic force of 43 will swing to 10 - the top holding position on the roller 32 of the paper feed roller set 30 will be in close contact with the roller 32, and as shown in Fig. 4, the roller 32 will be the sleeve 33. And the linkage of the one-way spring 34 'material _ U rotates counterclockwise, and smoothly prints the photo paper-sheet into the transport platform 。. When the user pushes the sliding plate 47 and releases it, the returning member 45 can again return the connecting rod 44, the linking plate 48, the sliding plate π, and the like to the original position. When the printing is completed, if the photo paper remains on the paper feeding unit 40, the photo paper can be directly taken out. At this time, pulling the photo paper will cause the roller U to face the wheel shaft 31 in the clockwise direction as shown in FIG. Freewheeling to reduce the drag force and easy to remove photo paper. When it is desired to print again and want to hold the paper feed tray 42 in the lower pressing position, it is only necessary to pull the cover plate 41 toward the frame 14, and the pair of rollers 32 of the paper feed roller set 30 are used. Pressing the paper feed tray 42 again allows the paper feed tray 42 to be held in the depressed position (as shown in Figure 8), and then the cover 41 is again moved away from the outside of the frame 14, The photo paper can be placed and printed (as shown in Figure 9). And when the paper feeding tray 42 is swung from the holding position to the pressing position, the first side 425 and the bottom edge 424 are engaged by the guiding portion 446 so that the locking portion 445 can be smoothly embedded. It is sleeved on the rib 425. Therefore, the present invention pivots the cover plate 41 toward the frame 14 so that the paper feed tray 42 is pivoted from the holding position to the depressed position, and the locking portion 445 of the link 44 is made. The paper feed tray 42 is jammed, and even if the cover plate 41 is pulled toward the outside of the frame 14, the paper feed 11 1320753 tray 42 can be kept under the yoke. To facilitate paper loading. When the user pushes the sliding plate 47 to correct the photo paper, the connecting rod 44 can be interlocked to cause the frame to rotate and the locking portion 445 is detached from the rib 425 of the paper feeding plate 42 to read the paper feeding plate. The swinging end portion 422 of the 42 is used by the elastic member 43 to swing from the pressing position to the holding position, and the photo paper is in close contact with the roller η, so that the paper can be smoothly taken in.

And the sleeve 33 and the one-way spring 34 cooperate with the roller 32. When the printing is completed and the photo paper is taken out, the roller 32 can be idly rotated relative to the axle 31 to reduce the drag force and can be easily taken out. Photo paper. The above is only the preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent change and modification of the patent scope and the description of the invention according to the present invention. All remain within the scope of the invention patent. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a stereoscopic appearance of a conventional paper feeding device;

2 is a partial perspective view of the paper feeding device; FIG. 4 is a perspective view showing a preferred embodiment of the automatic paper feeding device for facilitating the picking and unloading of the paper; FIG. 4 is a view of the preferred embodiment of the present invention. FIG. 5 is a plan exploded view of a preferred embodiment of the present invention, illustrating a component of the paper feed wheel set; FIG. 6 is a view of the present invention. An exploded perspective view of a preferred embodiment of the present invention illustrates a component of a paper feed unit; 12 1320753 FIG. 7 is a plan view of a combination of the above preferred embodiments of the present invention, illustrating the joint structure of the components of the paper feed unit; 8 is a schematic view showing the folding operation of the paper feeding unit of the above preferred embodiment of the present invention; FIG. 9 is a schematic view showing the pulling operation of the paper feeding unit according to the above preferred embodiment of the present invention; A schematic diagram of the operation of the paper unit, illustrating that pushing a sliding plate can interlock a link;

Figure 11 is a perspective view showing the swing of the paper feed tray of the above preferred embodiment of the present invention. 13 1320753

[Description of main component symbols] ίο.........The casing unit 11 ....the first end portion 12 ....the second end portion 13 .. ....... conveying platform 14 ......... rack 20 ... ... power unit 21 ... ... motor 22 ..... .... Gear set 426 43 _ 431 432 44. 441 442 443 444 445 446 45. _ 46_ 461 47·. 471 48·· 30 ......... Feed wheel set 31 .... ..... axle 32 ......... roller 321 .... convex tube portion 33 ... ... bushing 34 ......... One-way spring 40 .... paper-feeding unit 41 ... ... cover 411 .... inside side 412 .... ... positioning groove 414 .... stud 415 .... baffle 416 .... 椹 column 42 ... ... paper feed Pallet 421 .... pivot end 422 .... swing end 423 .... positioning surface 424 .... bottom edge 425 .... ...first side 425'... rib second side elastic element first end second end leg link pivot drive end smashing end buckle hole clamping part guiding part return component positioning plate guide Slot sliding plate guide column linkage plate 14 1320753 481 ....... card hole 482 pusher

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Claims (1)

X. Patent application scope: I. An automatic paper feeding device for picking and unloading paper, comprising: a casing unit; a power unit mounted on the casing unit; a feeding wheel set 疋 axis is provided in the a casing unit, and driven by the power unit, can transport the paper toward the inside of the casing unit; and a paper feeding unit having a cover plate and a pivoting plate on the cover plate a paper feed tray, an elastic member for providing the paper feed tray to maintain a tendency to swing toward the paper feed roller set, a connecting rod pivotally disposed on a side of the paper feed tray, and a connecting rod provided a recovery element having a recovery capability after operation, the paper feed tray being slidable from a depressed position away from the paper feed roller set to a holding position on the paper feed roller set, the link having a pivot a shaft pivot portion disposed on the cover plate, a driving end portion on a side of the shaft pivot portion and approaching the paper feed tray, and a tilting end portion on the other side of the shaft pivot portion, The drive end has a carding portion that holds the paper feed tray in the depressed position. 2. The automatic paper feeding device for facilitating the pick-and-place paper according to the first aspect of the patent application, wherein the paper feeding tray of the paper feeding unit has a positioning surface for holding the paper, and a positioning surface opposite to the positioning surface a bottom edge disposed between the bottom edge and the side surface of the driving edge and the bottom edge is convexly provided with a rib on a side surface of the driving end portion, and the locking portion is nested on the rib Grooved. 3. The automatic paper feeding device for picking and unloading paper according to item 2 of the patent application scope, wherein the connecting rod of the paper feeding unit further has a beveled guide outside the 16-position of the locking portion. a portion, when the paper feed tray is swung from the top holding position to the lower waste position, the bottom edge and the middle side of the joint are guided by the guiding portion such that the locking portion can be nested on the protruding rib. 4. The automatic paper feeding device for picking and unloading paper according to item i of the patent application scope, wherein the paper feeding unit further has a positioning on the cover plate and positioned on a side of the paper feeding plate a sliding plate that can slide along the positioning plate and a linking plate driven by the sliding plate and capable of swaying the swinging end of the connecting rod, the positioning plate has a guiding groove, and the sliding plate has a A guide post that slides along the guide groove. 5. The automatic paper feeding device for picking and unloading paper according to item 4 of the patent application scope, wherein the linking plate of the paper feeding unit is disposed between the cover plate and the positioning plate, and has an available The guide post is nested in a connected card hole. 6. The automatic paper feeding device for picking and unloading paper according to item 1 of the patent application scope, wherein the paper feed wheel set has an axle, a set of axles which are arranged on the casing unit and driven by the power unit a roller disposed on the axle, a sleeve fixed to one side of the roller, and a one-way spring disposed between the roller and the sleeve. The spiral direction of the one-way spring is opposite to the advancement of the roller Paper direction. 7. The automatic paper feeding device for picking and unloading paper according to item 1 of the patent application scope, wherein the paper feeding unit is pivoted on the casing unit corresponding to the paper feeding wheel set. The automatic paper feeding device for picking and unloading paper according to Item 1, wherein the returning element is a return spring. 17