TWM616872U - Paper feeding mechanism - Google Patents
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- TWM616872U TWM616872U TW110204492U TW110204492U TWM616872U TW M616872 U TWM616872 U TW M616872U TW 110204492 U TW110204492 U TW 110204492U TW 110204492 U TW110204492 U TW 110204492U TW M616872 U TWM616872 U TW M616872U
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Abstract
一種紙張饋送機構,包含:一饋紙通道;一驅動馬達,所述驅動馬達可控制地輸出反向以及順向的驅動力;一單向傳動機構,所述單向傳動機構與所述驅動馬達連接;至少一與所述單向傳動機構連接的阻紙輪,所述單向傳動機構在所述驅動馬達輸出反向驅動力時輸送順向驅動力至所述阻紙輪,而當所述驅動馬達輸出順向驅動力時不輸出驅動力至所述阻紙輪;一雙向傳動機構,所述雙向傳動機構與所述驅動馬達連接,以及至少一與所述雙向傳動機構連接的饋紙輪,當所述驅動馬達輸出反向或順向驅動力,所述雙向傳動機構均輸送順向驅動力至所述饋紙輪。A paper feeding mechanism includes: a paper feeding channel; a driving motor that can controllably output reverse and forward driving forces; a one-way transmission mechanism, the one-way transmission mechanism and the drive motor Connection; at least one paper stop wheel connected with the one-way transmission mechanism, the one-way transmission mechanism transmits the forward driving force to the paper stop wheel when the drive motor outputs the reverse driving force, and when the When the driving motor outputs a forward driving force, it does not output driving force to the paper blocking wheel; a two-way transmission mechanism, the two-way transmission mechanism is connected with the driving motor, and at least one paper feeding wheel is connected with the two-way transmission mechanism When the driving motor outputs a reverse or forward driving force, the two-way transmission mechanism transmits the forward driving force to the paper feeding wheel.
Description
本創作涉及一種紙張饋送機構,尤其指一種僅使用單一驅動馬達便能夠消除紙張歪斜的紙張饋送機構。This creation relates to a paper feeding mechanism, in particular to a paper feeding mechanism that can eliminate paper skew using a single drive motor.
紙張歪斜意謂紙張在被饋送的過程中,紙張的前緣不與饋紙輪的軸向平行的狀況。當發生紙張歪斜時容易造成卡紙或是影響掃描影像或列印影像的品質,因此在習知的紙張饋送機構中會設置一組除歪斜滾輪來消除紙張歪斜。請參閱第六圖,習知的除歪斜滾輪70設置在饋紙通道中,並位於取紙滾輪72的下游處。所述除歪斜滾輪70由一獨立設置的控制馬達71所帶動,以使所述除歪斜滾輪70的轉動時間、轉動方向與所述取紙滾輪72獨立。Paper skew means that the leading edge of the paper is not parallel to the axis of the paper feed roller during the feeding process. When paper skew occurs, it is easy to cause paper jams or affect the quality of scanned images or printed images. Therefore, a set of skew-removing rollers are provided in the conventional paper feeding mechanism to eliminate paper skew. Please refer to FIG. 6, the conventional
請參閱第七圖及第八圖,在所述取紙滾輪72開始饋送紙張時,所述除歪斜滾輪70保持靜止,因此當歪斜的紙張被所述取紙滾輪70饋送至所述除歪斜滾輪70的位置時,紙張的前緣受到所述除歪斜滾輪70的阻擋而與所述除歪斜滾輪70的軸向齊平。在紙張歪斜消除之後,所述除歪斜滾輪70恢復轉動並將紙張往下游方向饋送。Referring to Figures 7 and 8, when the
然而,額外增設獨立的控制馬達便會使製造成本提高,因此有必要提供一種僅使用單一驅動馬達便能夠消除紙張歪斜的紙張饋送機構。However, adding an independent control motor will increase the manufacturing cost. Therefore, it is necessary to provide a paper feeding mechanism that can eliminate paper skew by using a single drive motor.
本創作的目的在於提供一種僅使用單一驅動馬達便能夠消除紙張歪斜的紙張饋送機構。The purpose of this creation is to provide a paper feeding mechanism that can eliminate paper skew using only a single drive motor.
為實現以上目的,本創作的一種紙張饋送機構,包含:一饋紙通道;一驅動馬達,所述驅動馬達可控制地輸出反向以及順向的驅動力;一雙向傳動機構,所述雙向傳動機構與所述驅動馬達連接以輸送驅動力;至少一個饋紙輪,安裝在饋紙通道中並與所述雙向傳動機構連接;一單向傳動機構,所述單向傳動機構與所述驅動馬達連接以輸送驅動力;以及至少一阻紙輪,安裝在饋紙通道中並設置於所述饋紙輪下游的位置,所述阻紙輪與所述單向傳動機構連接;且其中當所述驅動馬達輸出反向驅動力時,所述雙向傳動機構輸送順向驅動力至所述饋紙輪,而所述單向傳動機構輸送順向驅動力至所述阻紙輪;而當所述驅動馬達輸出順向驅動力時,所述雙向傳動機構輸送順向驅動力至所述饋紙輪,而所述單向傳動機構不輸送驅動力至所述阻紙輪。In order to achieve the above objectives, a paper feeding mechanism of the present creation includes: a paper feeding channel; a driving motor that can controllably output reverse and forward driving forces; and a two-way transmission mechanism, the two-way transmission The mechanism is connected with the driving motor to transmit driving force; at least one paper feeding wheel is installed in the paper feeding channel and connected with the two-way transmission mechanism; a one-way transmission mechanism, the one-way transmission mechanism and the drive motor Connected to convey the driving force; and at least one paper stop wheel installed in the paper feeding channel and arranged at a position downstream of the paper feed wheel, the paper stop wheel is connected with the one-way transmission mechanism; and wherein when the When the driving motor outputs the reverse driving force, the two-way transmission mechanism transmits the forward driving force to the paper feeding wheel, and the one-way transmission mechanism transmits the forward driving force to the paper blocking wheel; and when the driving When the motor outputs the forward driving force, the two-way transmission mechanism transmits the forward driving force to the paper feeding wheel, and the one-way transmission mechanism does not transmit the driving force to the paper blocking wheel.
在一較佳實施例中,其中所述單向傳動機構包含一傳動軸,所述傳動軸與所述驅動馬達連接以輸送驅動力;一輪軸,所述輪軸可轉動地套設於所述傳動軸上並與所述阻紙輪連接;以及一扭簧,所述扭簧的一固定端連接固定於所述傳動軸上,且所述扭簧的一自由端套接於所述輪軸的外周側;且其中所述扭簧的旋轉方向為順向,因此當所述傳動軸以順向旋轉時所述扭簧的內徑受磨擦力影響而收縮。In a preferred embodiment, wherein the one-way transmission mechanism includes a transmission shaft, the transmission shaft is connected with the drive motor to transmit driving force; a wheel shaft, the wheel shaft is rotatably sleeved on the transmission On the shaft and connected with the paper stop wheel; and a torsion spring, a fixed end of the torsion spring is connected and fixed on the transmission shaft, and a free end of the torsion spring is sleeved on the outer circumference of the wheel shaft Side; and wherein the direction of rotation of the torsion spring is forward, so when the transmission shaft rotates in the forward direction, the inner diameter of the torsion spring is affected by friction and shrinks.
在一較佳實施例中,其中所述傳動軸上設有一盲孔,且所述固定端設有掛勾,所述掛勾插入所述盲孔中使所述扭簧隨著所述傳動軸轉動。In a preferred embodiment, the transmission shaft is provided with a blind hole, and the fixed end is provided with a hook, and the hook is inserted into the blind hole so that the torsion spring follows the transmission shaft Rotate.
在一較佳實施例中,其中所述雙向傳動機構包含一輸入齒輪,所述輸入齒輪與所述驅動馬達連接以輸送驅動力;一順向擺臂,所述順向擺臂共軸樞接於所述輸入齒輪上;一反向擺臂,所述順向擺臂共軸樞接於所述輸入齒輪上;一順向齒輪組,所述順向齒輪組設置於所述順向擺臂上以隨著所述順向擺臂移動,並與所述輸入齒輪連接以輸送驅動力;一反向齒輪組,所述反向齒輪組設置於所述反向擺臂上以隨著所述反向擺臂移動,並與所述輸入齒輪連接以輸送驅動力;一輸出齒輪組,所述輸出齒輪組設置於所述順向擺臂以及所述反向擺臂擺動路徑的交匯位置並與所述饋紙輪連接;且其中所述順向齒輪組在輸送驅動力時反轉驅動力的方向,當所述驅動馬達輸出反向驅動力時,所述順向擺臂擺向所述輸出齒輪而使所述驅動力經由所述順向齒輪組輸送至所述輸出齒輪;所述反向齒輪組在輸送驅動力時保持驅動力的方向不變,而當所述驅動馬達輸出順向驅動力時,所述反向擺臂擺向所述輸出齒輪而使所述驅動力經由所述反向齒輪組輸送至所述輸出齒輪。In a preferred embodiment, wherein the two-way transmission mechanism includes an input gear connected to the drive motor to transmit driving force; a forward swing arm, the forward swing arm is pivotally connected coaxially On the input gear; a reverse swing arm, the forward swing arm is pivotally connected to the input gear coaxially; a forward gear set, the forward gear set is arranged on the forward swing arm The upper part moves with the forward swing arm and is connected with the input gear to transmit driving force; a reverse gear set, the reverse gear set is arranged on the reverse swing arm to follow the The reverse swing arm moves and is connected with the input gear to transmit driving force; an output gear set, the output gear set is arranged at the intersection of the forward swing arm and the reverse swing arm swing path and is connected to the The paper feeding wheel is connected; and wherein the forward gear set reverses the direction of the driving force when transmitting the driving force, and when the driving motor outputs the reverse driving force, the forward swing arm swings to the output Gears so that the driving force is transmitted to the output gear through the forward gear set; the reverse gear set keeps the direction of the driving force unchanged when the driving force is transmitted, and when the drive motor outputs a forward drive When the force is applied, the reverse swing arm swings toward the output gear so that the driving force is transmitted to the output gear via the reverse gear set.
在一較佳實施例中,其中所述順向擺臂與所述反向擺臂為一體成形。In a preferred embodiment, the forward swing arm and the reverse swing arm are integrally formed.
在一較佳實施例中,其中所述輸出齒輪組包含一設置於所述順向擺臂以及所述反向擺臂擺動路徑交匯位置的中繼齒輪,以及一與所述中繼齒輪嚙合並與所述饋紙輪連接的輸出齒輪。In a preferred embodiment, the output gear set includes a relay gear disposed at the intersection of the swing paths of the forward swing arm and the reverse swing arm, and a relay gear meshed with the relay gear An output gear connected with the paper feeding wheel.
在一較佳實施例中,其中所述反向齒輪組包含奇數顆相互嚙合的反向齒輪以及組接於所述反向齒輪以及所述反向擺臂之間的奇數個壓縮彈簧。In a preferred embodiment, the reverse gear set includes an odd number of reverse gears meshing with each other and an odd number of compression springs assembled between the reverse gear and the reverse swing arm.
在一較佳實施例中,其中所述順向齒輪組包含偶數顆相互嚙合的順向齒輪以及組接於所述順向齒輪以及所述順向擺臂之間的偶數個壓縮彈簧。In a preferred embodiment, the forward gear set includes an even number of forward gears meshing with each other and an even number of compression springs assembled between the forward gear and the forward swing arm.
為詳細說明本創作的技術內容,構造特徵,所達成目的及功效,以下茲舉例並配合圖式詳予說明。In order to explain in detail the technical content, structural features, goals and effects achieved in this creation, the following examples are given in conjunction with the diagrams to explain in detail.
由於實務上傳動結構的設置方向眾多,無法一一列舉。因此為方便說明,在本說明書中敘述元件以及驅動力的轉動方向時以饋紙輪的轉動方向作為參照。所稱的順向定義為所述饋紙輪將紙張往饋紙通道下游方向饋送的轉動方向,而所稱的反向定義為所述饋紙輪將紙張往饋紙通道上游方向饋送的轉動方向。Due to the fact that there are so many directions in which the transmission structure is set up, it is impossible to list them all. Therefore, for the convenience of description, the rotation direction of the paper feed roller is used as a reference when describing the rotation direction of the components and the driving force in this specification. The so-called forward direction is defined as the rotation direction of the paper feeding roller to feed the paper in the downstream direction of the paper feeding channel, and the so-called reverse direction is defined as the rotation direction of the paper feeding wheel to feed the paper in the upstream direction of the paper feeding channel .
請參閱第一圖至第三圖,為實現以上目的,本創作的一種紙張饋送機構100,包含:一饋紙通道10;一驅動馬達20,所述驅動馬達20可控制地輸出反向以及順向的驅動力;一雙向傳動機構30,所述雙向傳動機構30與所述驅動馬達20連接以輸送驅動力;至少一個饋紙輪40,安裝在饋紙通道10中並與所述雙向傳動機構30連接;一單向傳動機構50,所述單向傳動機構50與所述驅動馬達20連接以輸送驅動力;以及至少一阻紙輪60,安裝在饋紙通道10中並設置於所述饋紙輪40下游的位置,所述阻紙輪60與所述單向傳動機構50連接。Please refer to the first to third figures. In order to achieve the above purpose, a
因此當所述驅動馬達20輸出順向驅動力時,所述雙向傳動機構30輸送順向驅動力至所述饋紙輪40,而所述單向傳動機構50不輸送驅動力至所述阻紙輪60。此時紙張在所述饋紙輪40的驅動下向下游前進,且所述紙張的前緣在接觸所述阻紙輪60之後與所述阻紙輪60靠齊,進而消除紙張的歪斜。而當所述驅動馬達20輸出反向驅動力時,所述雙向傳動機構30輸送順向驅動力至所述饋紙輪40,而所述單向傳動機構50輸送順向驅動力至所述阻紙輪60,進而將消除歪斜的紙張進一步向下游饋送。Therefore, when the driving
在第二圖與第三圖所示之實施例中為使整體結構簡化,所述雙向傳動機構30透過所述單向傳動機構50而與所述驅動馬達20連接。所述單向傳動機構50與左右對稱設置的兩個阻紙輪60相連接,並包含一傳動軸51,所述傳動軸51與所述驅動馬達20連接以輸送驅動力,且所述傳動軸51上設有兩盲孔54;兩輪軸52,所述兩輪軸52可轉動地套設於所述傳動軸51上並與所述兩阻紙輪60連接;以及兩扭簧53,所述兩扭簧53各自在一固定端設有掛勾55,所述掛勾55插入所述盲孔54中使所述兩扭簧53連接固定於所述傳動軸51上並隨著所述傳動軸51轉動,且所述兩扭簧53各自以一自由端套接於所述兩輪軸52的外周側;且其中所述兩扭簧53的旋轉方向為順向,因此當所述傳動軸51以順向旋轉時所述兩扭簧53所受到的磨擦力將會使所述兩扭簧53進一步扭緊,進而使得所述兩扭簧53的內徑收縮並個別夾緊所述兩輪軸52。但是當所述傳動軸51以反向旋轉時,所述兩扭簧53所受到的摩擦力會使所述兩扭簧53放鬆,進而使所述兩扭簧53空轉。In the embodiment shown in the second and third figures, in order to simplify the overall structure, the two-
而所述雙向傳動機構30則包含一輸入齒輪31,所述輸入齒輪31透過所述傳動軸51與所述驅動馬達20連接以輸送驅動力;一體成形的一順向擺臂32以及一反向擺臂33,所述順向擺臂32共軸樞接於所述輸入齒輪31上,且所述順向擺臂32亦共軸樞接於所述輸入齒輪31上;一順向齒輪組34,所述順向齒輪組34設置於所述順向擺臂32上以隨著所述順向擺臂32移動,並與所述輸入齒輪31連接以輸送驅動力;一反向齒輪組35,所述反向齒輪組35設置於所述反向擺臂33上以隨著所述反向擺臂33移動,並與所述輸入齒輪31連接以輸送驅動力;一輸出齒輪組37,所述輸出齒輪組37設置於所述順向擺臂32以及所述反向擺臂33擺動路徑的交匯位置並與所述饋紙輪40連接。The two-
再請參閱第二圖、第四圖及第五圖,在本實施例中,所述輸出齒輪組37包含一設置於所述順向擺臂32以及所述反向擺臂33擺動路徑交匯位置的中繼齒輪371,以及一與所述中繼齒輪371嚙合並與所述饋紙輪40連接的輸出齒輪372。Please refer to the second, fourth, and fifth figures again. In this embodiment, the
所述反向齒輪組35中包含一反向齒輪351以及一組接於所述反向齒輪351以及所述反向擺臂33之間的壓縮彈簧36,因此在輸送驅動力時使驅動力的方向反轉。所述彈簧向所述反向齒輪351施予一阻力,因此當所述驅動馬達20輸出反向驅動力時,所述反向齒輪351在所述輸入齒輪31的驅動下以所述輸入齒輪31為中心反向轉動,進而使所述反向擺臂33擺向所述中繼齒輪371。所述反向的驅動力經由所述反向齒輪組35反轉後輸送至所述中繼齒輪371,再由所述中繼齒輪371反轉方向後輸送至所述輸出紙齒輪,因此所述輸出齒輪372以順向轉動。The
所述順向齒輪組34則包含兩顆相互嚙合的順向齒輪341以及兩組接於所述順向齒輪341以及所述順向擺臂32之間的壓縮彈簧36,因此在輸送驅動力時保持驅動力的方向不變。所述彈簧向所述順向齒輪341施予一阻力,當所述驅動馬達20輸出順向驅動力時,所述順向齒輪341在所述輸入齒輪31的驅動下以所述輸入齒輪31為中心順向轉動,進而使所述順向擺臂32擺向所述中繼齒輪371。所述順向的驅動力經由所述順向齒輪組34直接輸送至所述中繼齒輪371,再由所述中繼齒輪371反轉方向後輸送至所述輸出紙齒輪,因此所述輸出齒輪372以順向轉動。The
100:紙張饋送機構 10:饋紙通道 20:驅動馬達 30:雙向傳動機構 31:輸入齒輪 32:順向擺臂 33:反向擺臂 34:順向齒輪組 341:順向齒輪 35:反向齒輪組 351:反向齒輪 36:壓縮彈簧 37:輸出齒輪組 371:中繼齒輪 372:輸出齒輪 40:饋紙輪 50:單向傳動機構 51:傳動軸 52:輪軸 53:扭簧 54:盲孔 55:掛勾 60:阻紙輪 70:除歪斜滾輪 71:控制馬達 72:取紙滾輪100: Paper feeding mechanism 10: Paper feed channel 20: Drive motor 30: Two-way transmission mechanism 31: Input gear 32: Swing arm forward 33: Reverse swing arm 34: Forward gear set 341: Forward Gear 35: Reverse gear set 351: Reverse Gear 36: Compression spring 37: output gear set 371: Relay Gear 372: output gear 40: paper feed wheel 50: One-way transmission mechanism 51: drive shaft 52: Axle 53: Torsion Spring 54: Blind Hole 55: Hook 60: Paper resistance wheel 70: In addition to skew roller 71: control motor 72: paper pick roller
第一圖係本創作中紙張饋送機構的剖面示意圖; 第二圖係本創作中紙張饋送機構的爆炸圖; 第三圖係係本創作中單向傳動機構的爆炸圖; 第四圖係本創作中紙張饋送機構在驅動馬達輸出反向驅動力時的作動示意圖; 第五圖係本創作中紙張饋送機構在驅動馬達輸出順向驅動力時的作動示意圖; 第六圖係習知紙張饋送機構的的剖面示意圖; 第七圖係紙張歪斜的示意圖; 第八圖係消除紙張歪斜的示意圖。 The first figure is a schematic cross-sectional view of the paper feeding mechanism in this creation; The second picture is an exploded view of the paper feeding mechanism in this creation; The third picture is an exploded diagram of the one-way transmission mechanism in this creation; The fourth figure is a schematic diagram of the action of the paper feeding mechanism when the driving motor outputs the reverse driving force in this creation; The fifth figure is a schematic diagram of the action of the paper feeding mechanism when the drive motor outputs forward driving force in this creation; The sixth figure is a schematic cross-sectional view of the conventional paper feeding mechanism; The seventh figure is a schematic diagram of the paper skewed; The eighth figure is a schematic diagram of eliminating paper skew.
100:紙張饋送機構 100: Paper feeding mechanism
10:饋紙通道 10: Paper feed channel
20:驅動馬達 20: Drive motor
30:雙向傳動機構 30: Two-way transmission mechanism
40:饋紙輪 40: paper feed wheel
50:單向傳動機構 50: One-way transmission mechanism
60:阻紙輪 60: Paper resistance wheel
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW110204492U TWM616872U (en) | 2021-04-22 | 2021-04-22 | Paper feeding mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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TW110204492U TWM616872U (en) | 2021-04-22 | 2021-04-22 | Paper feeding mechanism |
Publications (1)
Publication Number | Publication Date |
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TWM616872U true TWM616872U (en) | 2021-09-11 |
Family
ID=78778974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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TW110204492U TWM616872U (en) | 2021-04-22 | 2021-04-22 | Paper feeding mechanism |
Country Status (1)
Country | Link |
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TW (1) | TWM616872U (en) |
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2021
- 2021-04-22 TW TW110204492U patent/TWM616872U/en unknown
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