CN203976000U - Paper Transport Control Mechanism - Google Patents

Abstract

The utility model discloses a paper transmission control mechanism for control paper and the interval between the paper, including one get paper mechanism, a branch paper mechanism and a monitoring mechanism. The paper taking mechanism is used for completing paper taking action, and the paper separating mechanism separates the paper conveyed by the paper taking mechanism. The monitoring mechanism is arranged behind the paper taking mechanism and the paper separating mechanism and comprises a transmitting end and a receiving end which is arranged corresponding to the transmitting end at intervals, and the separated paper further passes through the transmitting end and the receiving end and is transmitted backwards. The monitoring mechanism monitors the relative distance between the front paper and the rear paper, and when the relative distance between the front paper and the rear paper is abnormal, the monitoring mechanism feeds back information to the paper taking mechanism and drives the paper taking mechanism to adjust the paper transmission speed so as to change the relative distance between the front paper and the rear paper. Therefore, the utility model discloses the distance of paper is unanimous around paper transmission control mechanism can control effectively to it takes place to reduce the image problem.

Description

Paper Transport Control Mechanism

technical field

The utility model relates to a paper transmission control mechanism. The paper transmission control mechanism can monitor the relative position of the paper in the transmission process, and then adjust the distance between the papers, thereby reducing the occurrence of image problems.

Background technique

General printers, multifunctional office machines, sheet-fed scanners, etc. generally include a paper-feeding mechanism, a paper-separating mechanism and an image scanning mechanism, and the paper-feeding mechanism, paper-separating mechanism and image scanning mechanism are installed on the above-mentioned image scanning mechanism. In the scanning device, when working, the paper separating mechanism separates the paper taken by the paper taking mechanism and transmits the paper to the image scanning mechanism for image processing. However, due to problems such as roller wear or slipping during the transport of the paper, the position of the paper is different, resulting in the gap between the paper and the paper is not fixed, resulting in uneven size of each image during the image scanning process .

In view of this, the paper transmission control mechanism of the present invention uses a sensor to monitor the relative position of the paper during the transmission process, and then adjusts the distance between the papers, thereby reducing the occurrence of image problems.

Utility model content

The purpose of this utility model is to provide a paper transmission control mechanism for the above-mentioned deficiencies in the prior art, the paper transmission control mechanism can monitor the relative position of the paper in the transmission process, and then adjust the distance between the paper and the paper, thereby reducing Image problems occur.

In order to achieve the above purpose, the paper transmission control mechanism provided by the utility model is used to control the distance between papers during transmission, and includes a paper fetching mechanism, a paper separating mechanism and a monitoring mechanism. The paper fetching mechanism includes a paper fetching roller group, a pressing mechanism and a paper fetching transmission mechanism. The paper-fetching transmission mechanism is arranged on one side of the paper-taking roller group and drives the paper-taking roller group to rotate. The pressing mechanism is arranged above the paper-taking roller group, and the paper is pressed by the pressing mechanism and the paper-taking roller group rotates. To complete the paper picking action. The paper separating mechanism is installed above the paper picking roller group and behind the pressing mechanism, and the paper separating mechanism separates the papers transported by the paper picking mechanism. The monitoring mechanism is arranged behind the paper-feeding mechanism and the paper-separating mechanism, and includes a transmitting end and a receiving end correspondingly arranged at a distance from the transmitting end. The above-mentioned paper separating mechanism cooperates with the paper picking roller group to pass the separated paper between the transmitting end and the receiving end and transport it backward. Wherein, the transmitting end and the receiving end of the monitoring mechanism monitor the relative distance between the tail of the previous paper and the head of the next paper. When the relative distance between the tail of the previous paper and the head of the next paper is abnormal, the monitoring mechanism feeds back information The paper drive mechanism drives the paper pick-up roller group to speed up or slow down the paper conveying speed to change the distance between paper and paper by the paper pick-up drive mechanism.

Preferably, the pressing mechanism includes a pressing plate and a pressing roller, the pressing roller is rotatably mounted on the pressing plate, and the pressing roller is driven by the pressing plate to press the paper and the rotation of the paper-taking roller group. Completes the pickup motion and transports the paper backwards.

Preferably, the set of pickup rollers includes a first pickup roller, a second pickup roller and a third pickup roller, wherein the first pickup roller, the second pickup roller and The third pickup roller is set on the same level, the first pickup roller is located in front of the second pickup roller and the third pickup roller is set between the first pickup roller and the second pickup roller , the lamination mechanism is arranged above the first paper pickup roller and the third paper pickup roller of the paper pickup roller group, and the paper separating mechanism is arranged above the second paper pickup roller of the paper pickup roller group.

Preferably, the paper pickup transmission mechanism includes a motor, a belt and a transmission gear set, and the motor of the paper pickup transmission mechanism is arranged on one side of the paper pickup roller group and drives the second paper pickup of the paper pickup roller group. The rollers rotate, the belt is sleeved on the first paper pickup roller and the second paper pickup roller, and the second paper pickup roller drives the first paper pickup roller to realize synchronous rotation through the belt drive, and the transmission gear set They are respectively arranged on the first paper pickup roller and the third paper pickup roller and are located on the same side and mesh with each other. During operation, the first paper pickup roller drives the third paper pickup roller to rotate through the transmission gear set.

Preferably, an image scanning mechanism is also included, and the image scanning mechanism further includes a paper feed roller group, an image scanning unit and a paper output roller group, and the paper feed roller group is arranged behind the monitoring mechanism and adjacent to the take-out roller group. In the paper mechanism, the paper output roller group is arranged behind the paper input roller group, and the image scanning unit is arranged between the paper input roller group and the paper output roller group.

Preferably, the monitoring mechanism is an interval sensor.

Preferably, the transmitting end of the monitoring mechanism is arranged above the receiving end, and the transmitting end and the receiving end are relatively vertical.

Preferably, the transmitting end of the monitoring mechanism is arranged above the receiving end and forms a certain angle with the receiving end.

Preferably, the receiving end of the monitoring mechanism is arranged above the transmitting end, and the receiving end and the transmitting end are in a relatively vertical position.

Preferably, the receiving end of the monitoring mechanism is set above the emitting end and forms a certain angle with the emitting end.

As mentioned above, the paper transmission control mechanism provided by the utility model utilizes the transmitting end and the receiving end of the monitoring mechanism to monitor the relative distance between the tail of the previous paper and the head of the next paper, and then adjust the distance between the paper and the paper to be consistent, thereby Reduce image problems.

Description of drawings

Fig. 1 is a perspective view of an embodiment of the paper transport control mechanism of the present invention.

Fig. 2 is a side view of the paper transport control mechanism of the present invention.

Fig. 3 is a side view from another angle of the paper transport control mechanism of the present invention.

Fig. 4 is a schematic diagram of the monitoring mechanism of the paper transport control mechanism of the present invention.

Each reference numeral in the figure is explained as follows.

Paper transport control mechanism 100 Pick-up roller set 11

1st pickup roller 111 2nd pickup roller 112

The third pickup roller 113 Pressing mechanism 12

Clamping plate 121 Pressing roller 122

Motor 131 Belt 132

Transmission gear set 133 Paper separation mechanism 20

Monitoring Agency 30 Transmitter 31

Receiver 32 Affects scanning mechanism 40

Feed roller set 41 Passive feed roller 411

Feed drive roller 412 Image scanning unit 42

Paper exit roller group 43 Passive paper exit roller 431

Paper output driving roller 432.

Detailed ways

In order to describe the technical content, structural features, achieved goals and effects of the present utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to Fig. 1 to Fig. 3, a kind of paper transmission control mechanism 100 provided for one of the preferred embodiments of the present utility model, is used for controlling the distance between paper and paper in the transmission process, including a paper taking mechanism ( Not shown in the figure), a paper separating mechanism 20 , a monitoring mechanism 30 and an image scanning mechanism 40 .

Please refer to FIG. 1 to FIG. 3 , the paper fetching mechanism includes a paper fetching roller set 11 , a pressing mechanism 12 and a paper fetching transmission mechanism (not shown). The paper pickup roller set 11 further includes a first paper pickup roller 111 , a second paper pickup roller 112 and a third paper pickup roller 113 . Wherein the first paper pickup roller 111, the second paper pickup roller 112 and the third paper pickup roller 113 are arranged on the same horizontal plane, the first paper pickup roller 111 is located in front of the second paper pickup roller 112 and the third pickup roller The paper roller 113 is disposed between the first paper pickup roller 111 and the second paper pickup roller 112 . The pressing mechanism 12 includes a pressing plate 121 and pressing rollers 122 . The pressing roller 122 of the pressing mechanism 12 is rotatably mounted on the pressing plate 121 . The pressing mechanism 12 is arranged above the first paper picking roller 111 and the third paper picking roller 113 of the paper picking roller set 11, and the paper and the paper picking roller set 11 are pressed by the pressing plate 121 of the pressing mechanism 12. The first paper pickup roller 111 rotates to drive the press roller 122 of the press mechanism 12 to complete the paper pickup action, and the paper is transported backward through the third paper pickup roller 113 of the paper pickup roller set 11 . The paper-taking transmission mechanism further includes a motor 131, a belt 132 and a transmission gear set 133. The motor 131 of the paper-taking transmission mechanism is arranged on one side of the paper-taking roller group 11 and drives the paper-taking roller group 11. The second pickup roller 112 rotates. The belt 132 is sheathed on the first paper pickup roller 111 and the second paper pickup roller 112 , and the second paper pickup roller 112 drives the first paper pickup roller 111 to rotate synchronously through belt transmission. The transmission gear set 133 is respectively arranged on the first paper pickup roller 111 and the third paper pickup roller 113 and is located on the same side and meshes with each other. Three take-up rollers 113 rotate. In this embodiment, the rotation of the paper-fetching transmission mechanism drives the rotation of the paper-fetching roller group 11 and the pressing of the pressing mechanism 12 to complete the paper-fetching action and transport the paper backward.

The paper separating mechanism 20 is installed behind the pressing plate 121 of the pressing mechanism 12 and above the second paper picking roller 112 of the paper picking roller set 11 . In this embodiment, the paper separation mechanism 20 is composed of a set of paper rollers. The function of the paper separating mechanism 20 is to separate the paper transported by the paper picking mechanism, and cooperate with the second paper picking roller 112 of the paper picking roller set 11 to transport the separated paper to the rear image scanning mechanism 40 .

Referring to FIGS. 1 to 4 , the monitoring mechanism 30 is disposed behind the paper fetching mechanism and the paper separating mechanism 20 , and is disposed in front of the image scanning mechanism 40 . The monitoring mechanism 30 includes a transmitting end 31 and a receiving end 32 correspondingly arranged at a distance from the transmitting end 31 . When working, the paper separated by the paper separation mechanism 20 and the paper pickup roller group 11 passes between the transmitting end 31 and the receiving end 32 of the monitoring mechanism 30 and is transported to the image scanning mechanism 40 at the rear. At this time, the monitoring mechanism 30 The transmitting end 31 and the receiving end 32 monitor the relative distance between the tail of the previous paper and the head of the next paper. When the relative distance between the tail of the previous paper and the head of the next paper is abnormal, the monitoring mechanism 30 will feed back information to the paper-feeding transmission mechanism To speed up or slow down the rotation speed of the motor 131, the motor 131 of the paper pickup transmission mechanism drives the paper pickup roller group 11 to speed up or slow down the paper transmission speed, and then adjust the front and rear paper spacing to be consistent, thereby improving the unstable problem of the paper spacing.

In this embodiment, the monitoring mechanism 30 is a group of gap sensors (GAP SENSOR), the transmitting end 31 is arranged above the receiving end 32 and the transmitting end 31 and the receiving end 32 are in a relatively vertical position. However, the arrangement of the transmitting end 31 and the receiving end 32 is not limited to the above-mentioned vertical manner. For example, the transmitting end 31 and the receiving end 32 can also be arranged at a certain angle, as long as the transmitting and receiving signals can be realized. Moreover, the positions of the transmitting end 31 and the receiving end 32 can also be interchanged.

Please refer to FIG. 2 and FIG. 3 , the image scanning mechanism 40 includes a paper feed roller set 41 , an image scanning unit 42 and a paper output roller set 43 . The paper feed roller set 41 is disposed behind the monitoring mechanism 30 and adjacent to the paper fetching mechanism. In more detail, the monitoring mechanism 30 is disposed between the paper-taking roller group 11 and the paper-separating mechanism 20 and the paper-feeding roller group 41 . The paper feeding roller set 41 includes a paper feeding passive roller 411 and a paper feeding driving roller 412 . The paper output roller set 43 is arranged behind the paper feed roller set 41 . The image scanning unit 42 is disposed between the paper feed roller set 41 and the paper output roller set 43 . The paper output roller group 43 includes a paper output passive roller 431 and a paper output active roller 432 . The paper feeding roller group 41 receives the paper separated from the paper separating mechanism 20 and passes through the monitoring mechanism 30, and is transmitted to the image scanning unit 42 through the paper feeding active roller 412 and the paper feeding passive roller 411. The paper-discharging active roller 432 and the paper-discharging passive roller 431 of the paper-discharging roller group 43 continue to transport backward.

In summary, the paper transmission control mechanism 100 of the present invention utilizes the transmitting end 31 and the receiving end 32 of the monitoring mechanism 30 to monitor the relative distance between the tail of the previous paper and the head of the next paper after being divided, and then adjust the distance between the paper and the paper. The distance between them is consistent, thereby reducing the occurrence of image problems.

Claims (10)

1. a paper transmission control mechanism, for being controlled at the spacing between transmission paper and paper, it is characterized in that: comprise a paper-fetching mechanism, one paper distributing mechanism and a mechanism for monitoring, paper-fetching mechanism comprises gets paper roller groups, one laminating mechanism and one is got paper transmission device, the described paper transmission device of getting is arranged to get paper roller groups one side and drive and gets paper roller groups rotation, laminating mechanism is arranged at gets paper roller groups top, by laminating mechanism pressing paper and get paper roller groups and rotated to get paper action, paper distributing mechanism is installed in to be got paper roller groups top and is positioned at laminating mechanism rear, the paper that described paper distributing mechanism transmits paper-fetching mechanism separates, mechanism for monitoring is arranged at the rear of paper-fetching mechanism and paper distributing mechanism, comprise the receiving end of a transmitting terminal and a setting corresponding to transmitting terminal interval, above-mentioned paper distributing mechanism coordinate get paper roller groups by the paper of separating between transmitting terminal and receiving end through and rearward transmission, the relative spacing of the transmitting terminal of described mechanism for monitoring and receiving end monitoring preceding sheet tail and rear a piece of paper head, when the relative spacing of preceding sheet tail and rear a piece of paper head has when abnormal, mechanism for monitoring feedback information is to getting paper transmission device, by getting, the quickening of paper roller groups is got in the driving of paper transmission device or the paper speed of transmission that slows down changes the spacing between paper and paper.

2. paper transmission control mechanism as claimed in claim 1, it is characterized in that: described laminating mechanism comprises a pressing plate and pressing roller bearing, described pressing roller bearing is rotatably installed on pressing plate, by pressing plate pressing paper and get paper roller groups and rotarily drive pressing roller bearing and complete and get paper action and transmit backward paper.

3. paper transmission control mechanism as claimed in claim 1, it is characterized in that: described in get paper roller groups and comprise that one first gets paper roller bearing, one second gets paper roller bearing and the 3rd gets paper roller bearing, wherein first get paper roller bearing, second gets paper roller bearing and the 3rd gets paper roller bearing and is arranged in same level, first gets paper roller bearing gets paper roller bearing front and the 3rd second and gets paper roller bearing and be arranged at first and get paper roller bearing and second and get between paper roller bearing, described laminating mechanism is arranged to be got first of paper roller groups and gets paper roller bearing and the 3rd and get paper roller bearing top, paper distributing mechanism is arranged to be got second of paper roller groups and gets paper roller bearing top.

4. paper transmission control mechanism as claimed in claim 3, it is characterized in that: described in get paper transmission device and comprise a motor, one belt and a driving gear set, the described motor of getting paper transmission device is arranged to get paper roller groups one side and drive and gets second of paper roller groups and get paper roller bearing rotation, described belt sleeve is located at first and is got that paper roller bearing and second is got on paper roller bearing and second get paper roller bearing and drive first to get paper roller bearing and realize synchronous rotary by belt-driving, described driving gear set is arranged at respectively first and gets paper roller bearing and the 3rd and get on paper roller bearing and be positioned at the same side intermeshing, when work, getting paper roller bearing by first drives the 3rd to get paper roller bearing and rotate by driving gear set.

5. paper transmission control mechanism as claimed in claim 1, it is characterized in that: also comprise an image scan mechanism, this image scan mechanism further comprises a paper feed roller groups, an image scan unit and a paper delivery roller groups, described paper feed roller groups is arranged at mechanism for monitoring rear and adjoins paper-fetching mechanism, described paper delivery roller groups is arranged at paper feed roller groups rear, and described image scan unit is arranged between paper feed roller groups and paper delivery roller groups.

6. paper transmission control mechanism as claimed in claim 1, is characterized in that: described mechanism for monitoring is space sensor.

7. paper transmission control mechanism as claimed in claim 1, is characterized in that: the transmitting terminal of described mechanism for monitoring is arranged at receiving end top and transmitting terminal and receiving end and is relative vertical position.

8. paper as claimed in claim 1 transmission control mechanism, is characterized in that: the transmitting terminal of described mechanism for monitoring be arranged at receiving end top and with receiving end at an angle.

9. paper transmission control mechanism as claimed in claim 1, is characterized in that: the receiving end of described mechanism for monitoring is arranged at transmitting terminal top and receiving end and transmitting terminal and is relative vertical position.

10. paper as claimed in claim 1 transmission control mechanism, is characterized in that: the receiving end of described mechanism for monitoring be arranged at transmitting terminal top and with transmitting terminal at an angle.