The present invention relates to a paper processing device, and more particularly to a paper processing device with a paper pressing mechanism.
Printing devices are essential information apparatuses in modern offices. For example, the printing devices include copiers, printers, scanners and office machines. Among these printing devices, printers are the most popular. Generally, when a printer is connected with a computer, the electronic file in the computer may be printed on a blank paper. In a case that the electronic file contains numerous data, the electronic file needs to be printed on at least two blank papers. For facilitating managing and filing the printed papers, the stack of printed papers are removed from the paper outlet tray of the printing device, and then aligned and stapled. Due to the stapling operation, these papers are combined together without being disorderly spread everywhere.
For most users, the printing operation of the printer has to be finished before the stapling operation is manually done. Since different electronic files to be printed have different data amounts, the time periods of waiting for the implementation of the printing operation are usually different. Under this circumstance, the user usually fails to efficiently manage the printed papers. For solving this problem, a paper processing device with a stapling function has been disclosed.
Generally, the conventional processing device comprises a paper placement platform. The multi-page document outputted from the printer or the scanner can be placed on the paper placement platform. After the multi-page document is placed on the paper placement platform, a paper-aligning action, a stapling action, a punching action or an associated action is performed to process the multi-page document. Then, the processed multi-page document is ejected out of the office machine. Consequently, the processed multi-page document can be taken by the user.
However, the conventional paper processing device still has some drawbacks. For example, while the multi-page document drops to the paper placement platform, the multi-page document is possibly uplifted or bent. While the plural pages of the multi-page document drop to the paper placement platform sequentially, the papers dropping to the paper placement platform at the later stage are influenced by the papers on the paper placement platform. Under this circumstance, the plural multi-page document cannot be well ordered. For solving this drawback, the paper processing device is equipped with a paper pressing mechanism. While the multi-page document drops to the paper placement platform, the multi-page document is flattened by the paper pressing mechanism. Consequently, the multi-page document on the paper placement platform can be stacked orderly.
Generally, during the operation of the paper pressing mechanism, the multi-page document on the paper placement platform is pressed by the weight of the paper pressing mechanism. If the document has strong rigidity or high curliness, the document cannot be smoothly flattened by the weight of the paper pressing mechanism. Consequently, the subsequent process of stapling the document is adversely affected.
Therefore, there is a need of providing an improved paper processing device in order to overcome the above drawbacks.
An object of the present invention provides a paper processing device. The paper pressing mechanism comprises the pressing bar, the driving mechanism and the linking mechanism. By the driving mechanism and the linking mechanism, the pressing bar is rotated relative to the paper placement platform. Consequently, the papers on a paper placement platform are flattened. Moreover, a guiding channel is defined by the pressing bar and the paper placement platform. After the papers are transferred to a stapling mechanism through the guiding channel, the papers are stapled by the stapling mechanism.
The other objects and advantages of the present invention will be understood from the disclosed technical features.
In accordance with an aspect of the present invention, a paper processing device is provided for processing plural papers from a printing device. The paper processing device includes a casing and a paper pressing mechanism. The casing includes a paper placement platform. The paper placement platform is extended externally from the casing so as to support the plural papers. The paper pressing mechanism includes a pressing bar, a driving mechanism and a linking mechanism. The pressing bar is located over the paper placement platform, and includes a pressing structure. The driving mechanism is installed on the casing. The linking mechanism is connected between the driving mechanism and the pressing bar. While the linking mechanism is driven by the driving mechanism, the pressing bar is moved with the linking mechanism and rotated relative to the paper placement platform, so that the pressing structure is moved from an initial position to a target position. When the pressing structure is moved to the target position and contacted with the plural papers, a guiding channel is defined between the pressing structure and the paper placement platform.
In an embodiment, the driving mechanism includes a solenoid valve body and an electromagnetic push rod. The electromagnetic push rod is installed in the solenoid valve body. A portion of the electromagnetic push rod is exposed outside the solenoid valve body.
In an embodiment, the casing further includes a positioning shaft and a fixing end. The linking mechanism includes a first elastic linkage, a second elastic linkage and a first transmission part. The first transmission part includes a first coupling hole, a second coupling hole and a pivotal part. The first coupling hole and the second coupling hole are opposed to each other. The pivotal part is arranged between the first coupling hole and the second coupling hole. The first elastic linkage is connected between the electromagnetic push rod and the first coupling hole of the first transmission part. The second elastic linkage is connected between the fixing end of the casing and the second coupling hole of the first transmission part. The positioning shaft is pivotally coupled to the pivotal part of the first transmission part.
In an embodiment, the pressing bar further includes a second transmission part, and the second transmission part is contacted with the first transmission part of the linking mechanism. When the solenoid valve body is in an electrically-conducted state, the solenoid valve body drives a movement of the electromagnetic push rod in a first direction, and the movement of the electromagnetic push rod in the first direction allows the first elastic linkage and the second elastic linkage to be stretched. In response to an elastic restoring force of the stretched first elastic linkage, the first transmission part is rotated in a first rotation direction by using the positioning shaft as a fulcrum. As the first transmission part is rotated in the first rotation direction, the second transmission part is rotated in a second rotation direction opposite to the first rotation direction. As the second transmission part is rotated in the second rotation direction, the pressing bar is rotated in the second rotation direction, so that the pressing structure is moved to the target position.
Preferably, when the solenoid valve body is switched from the electrically-conducted state to a shut-off state, the electromagnetic push rod is moved in a second direction opposite to the first direction. While the electromagnetic push rod is moved in the second direction, the first elastic linkage is moved in the second direction. In response to a force of moving the first elastic linkage in the second direction and an elastic restoring force of the second elastic linkage, the first transmission part is rotated in the second rotation direction by using the positioning shaft as the fulcrum. As the first transmission part is rotated in the second rotation direction, the second transmission part is rotated in the first rotation direction. As the second transmission part is rotated in the first rotation direction, the pressing bar is rotated in the first rotation direction. Consequently, the pressing structure is returned to the initial position.
In an embodiment, the first transmission part includes plural first tooth structures, and the second transmission part includes plural second tooth structures. The plural first tooth structures and the plural second tooth structures are engaged with each other.
In an embodiment, the paper processing device further includes a transfer roller assembly, and the transfer roller assembly is installed on the casing and located over the paper placement platform. The transfer roller assembly includes a rotation shaft and plural rollers. The plural rollers are pivotally coupled to the rotation shaft. The pressing bar is pivotally coupled to the rotation shaft. When the pressing bar is moved with the linking mechanism, the pressing bar is rotated relative to the paper placement platform by using the rotation shaft as a fulcrum.
In an embodiment, the paper processing device further includes a stapling mechanism. The stapling mechanism is installed on the casing and located beside the paper placement platform. The plural papers on the paper placement platform are transferred to the stapling mechanism through the guiding channel and stapled by the stapling mechanism.
In an embodiment, the pressing structure of the pressing bar has a pressing surface facing the paper placement platform, and the pressing surface includes a flat segment and an inclined segment. The flat segment and the inclined segment are connected with each other. The flat segment is arranged near the stapling mechanism. The inclined segment is located away from the stapling mechanism. An equidistant channel is formed between the flat segment and the paper placement platform. The inclined segment is inclined in a direction away from the paper placement platform. A tapered non-equidistant channel is formed between the inclined segment and the paper placement platform. The guiding channel contains the equidistant channel and the non-equidistant channel.
From the above descriptions, the present invention provides the paper processing device with the paper pressing mechanism. By the paper pressing mechanism, the papers on the paper placement platform is flattened. The guiding channel is defined by the pressing bar and the paper placement platform. After the papers are introduced into the stapling mechanism smoothly through the guiding channel, the papers are stapled by the stapling mechanism. The paper pressing mechanism comprises the pressing bar, the driving mechanism and the linking mechanism. By the driving mechanism and the linking mechanism, the pressing bar is rotated relative to the paper placement platform. Consequently, even if the papers have strong rigidity or high curliness, the papers can be smoothly flattened for facilitating the subsequent stapling action of the papers. Moreover, since the papers are guided by the guiding channel between the pressing bar and the paper placement platform, the papers are not jammed in the path to the stapling mechanism. Due to the structural design of the paper processing device, the overall volume and the fabricating cost of the paper processing device are reduced.
The above objects and advantages of the present invention will become more readily apparent to those ordinarily skilled in the art after reviewing the following detailed description and accompanying drawings, in which:
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In this embodiment, the casing 10 comprises an upper part 101 and a lower part 102. The paper placement platform 100 is extended externally from the lower part 102 of the casing 10. The driving mechanism 112 and the linking mechanism 113 are installed on the upper part 101 of the casing 10. As the linking mechanism 113 is driven by the driving mechanism 112, the pressing bar 111 is moved with the linking mechanism 113. Consequently, the pressing bar 111 is rotated relative to the paper placement platform 100. In such way, the pressing structure 1110 of the pressing bar 111 is moved from an initial position to a target position. When the pressing structure 1110 is moved to the target position, the pressing structure 1110 is contacted with the papers on the paper placement platform 100. When the pressing structure 1110 is in the target position, a guiding channel is defined by the pressing structure 1110 and the paper placement platform 100. The operations of the paper pressing mechanism 11 will be described in more details later.
The structure of the paper processing device 1 will be illustrated in more details as follows.
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The operations of the paper processing device 1 will be illustrated in more details as follows.
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When the solenoid valve body 1121 is switched from the electrically-conducted state of
If the paper pressing mechanism 11 has a breakdown or a malfunction, the curled papers fed into the stapling mechanism 12 may adversely affect the stapling action of the stapling mechanism 12. For solving this problem, the paper pressing mechanism 11 further comprises a sensor (not shown) for sensing the action of the paper pressing mechanism 11. If the paper pressing mechanism 11 has a breakdown or a malfunction, the sensor issues a notification signal. In response to the notification signal, the paper pressing mechanism 11 stops sending the papers to the stapling mechanism 12.
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From the above descriptions, the present invention provides the paper processing device with the paper pressing mechanism. By the paper pressing mechanism, the papers on the paper placement platform is flattened. The guiding channel is defined by the pressing bar and the paper placement platform. After the papers are introduced into the stapling mechanism smoothly through the guiding channel, the papers are stapled by the stapling mechanism. The paper pressing mechanism comprises the pressing bar, the driving mechanism and the linking mechanism. By the driving mechanism and the linking mechanism, the pressing bar is rotated relative to the paper placement platform. Consequently, even if the papers have strong rigidity or high curliness, the papers can be smoothly flattened for facilitating the subsequent stapling action of the papers. Moreover, since the papers are guided by the guiding channel between the pressing bar and the paper placement platform, the papers are not jammed in the path to the stapling mechanism. Due to the structural design of the paper processing device, the overall volume and the fabricating cost of the paper processing device are reduced.
While the invention has been described in terms of what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention needs not be limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements included within the spirit and scope of the appended claims which are to be accorded with the broadest interpretation so as to encompass all such modifications and similar structures.
Number | Date | Country | Kind |
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108140696 | Nov 2019 | TW | national |