Paper feeding device

Abstract

This utility model provides a paper feeding device, including a machine body, a paper feeding roller, and a paper pressing component. The machine body has a paper feeding channel. The paper feeding roller is pivotally connected to the machine body and located below the paper feeding channel. The paper pressing component is pivotally connected to the machine body and extends into the paper feeding channel. The paper pressing component is disposed above the paper feeding roller and includes a paper pressing arm and a conductive body. The paper pressing arm is pivotally connected to the machine body. The conductive body is connected to the paper pressing arm and disposed at a lower edge of the paper pressing arm and is adapted to contact a piece of paper. The paper is adapted to pass between the paper feeding roller and the paper pressing component, and the paper pressing component can contact the paper to remove static electricity from the paper. The paper feeding device provided by this utility model can remove static electricity from the paper during the paper feeding process, thereby avoiding paper jams.

Description

Technical Field

[0001] This utility model relates to a paper feeding device, and more particularly to a paper feeding device that can remove static electricity from paper. Background Technology

[0002] In common copiers, scanners, and other similar devices, paper is typically transported into the machine via paper pick-up rollers and feed rollers for scanning and other operations. However, paper is susceptible to static electricity due to environmental factors such as temperature and humidity. This static electricity can attract the paper to the pressure and feed rollers as it passes through them, causing paper jams. Reducing paper jams during transport is a key research topic for those skilled in the art. Utility Model Content

[0003] This invention provides a paper feeding device that can remove static electricity from the paper during the paper feeding process, thereby avoiding paper jams.

[0004] This utility model discloses a paper feeding device, comprising a machine body, a paper feeding roller, and at least one paper pressing component. The machine body has a paper feeding channel. The paper feeding roller is pivotally connected to the machine body and located below the paper feeding channel. At least one paper pressing component is pivotally connected to the machine body and extends into the paper feeding channel. The at least one paper pressing component is disposed above the paper feeding roller and includes a paper pressing arm and a conductor. The paper pressing arm is pivotally connected to the machine body. The conductor is connected to the paper pressing arm and is disposed at a lower edge of the paper pressing arm and adapted to contact a piece of paper. The paper is adapted to enter the paper feeding channel and pass between the paper feeding roller and the at least one paper pressing component, and the at least one paper pressing component can contact the paper to remove static electricity from the paper.

[0005] In one embodiment of this utility model, the paper pressing arm and the conductor are combined with each other by interference assembly.

[0006] In one embodiment of this utility model, the paper pressing arm and the conductive body are combined with each other by embedding molding.

[0007] In one embodiment of the present invention, the material of at least one of the paper pressing components is metal, and the paper pressing arm and the conductive body are integrally formed.

[0008] In one embodiment of this utility model, the paper feeding device further includes a conductive component disposed within the machine body. The conductive component includes a conductive sheet and a conductive bristle. The conductive sheet is locked to the machine body by a locking fastener. The conductive bristle is disposed at the end of the conductive sheet away from the locking fastener. At least one paper pressing element is pivotally connected to the machine body via a conductive shaft, and the conductive bristle contacts the conductive shaft to be electrically connected to the at least one paper pressing element.

[0009] In one embodiment of the present invention, the above-mentioned conductive component further includes a fixed iron plate, which is locked to the body with the conductive plate by a locking fastener.

[0010] In one embodiment of the present invention, the paper feeding device further includes a monitoring component disposed in the machine body and located above the paper feeding channel, the monitoring component being located on a moving path of at least one paper pressing element.

[0011] In one embodiment of the present invention, the monitoring component includes a transmitter and a receiver spaced apart from each other, and at least one paper pressing component is adapted to rotate relative to the machine body and move closer to the transmitter and the receiver.

[0012] In one embodiment of the present invention, when the paper is wrinkled, at least one paper pressing component is pushed by the paper to rotate relative to the machine body and move between the transmitter and the receiver. A detection optical path between the transmitter and the receiver is blocked by at least one paper pressing component, triggering the monitoring component to stop the paper feeding wheel from rotating and thus stop the paper from being transported.

[0013] In one embodiment of the present invention, the above-mentioned at least one paper pressing element includes a pair of paper pressing elements, which are located above opposite sides of the paper feeding channel.

[0014] Based on the above, since the paper feeding device of this utility model includes at least one paper pressing component, the conductive body of the paper pressing component is adapted to contact the paper during the paper feeding process, so that the static electricity on the paper can be moved to the conductive body, thereby removing the static electricity on the paper, thus avoiding the situation where the paper is attracted to the paper pressing component and the paper feeding wheel due to static electricity and causing paper jam.

[0015] To make the above-mentioned features and advantages of this utility model more apparent and understandable, specific embodiments are described below, and detailed descriptions are provided in conjunction with the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a perspective view of a paper feeding device according to an embodiment of the present utility model;

[0017] Figure 2 yes Figure 1 A three-dimensional schematic diagram of the paper feeding device after the outer casing has been removed;

[0018] Figure 3A yes Figure 2 A three-dimensional schematic diagram of the paper feeding device after the support components have been removed;

[0019] Figure 3B yes Figure 3A A side view of the paper feeding device;

[0020] Figure 3C yes Figure 3A A top view schematic diagram of the paper feeding device;

[0021] Figure 3D It is along Figure 3C A cross-sectional schematic diagram of the paper feeding device with section line AA;

[0022] Figure 4 yes Figure 3A An exploded diagram of the paper-pressing component;

[0023] Figure 5 This is a schematic diagram of the appearance of a paper-pressing component according to another embodiment of the present invention;

[0024] Figure 6A yes Figure 3A A three-dimensional schematic diagram of the paper pressing component of the paper feeding device moving into the monitoring component;

[0025] Figure 6B yes Figure 6A A side view of the paper feeding device;

[0026] Figure 6C yes Figure 6A A top view schematic diagram of the paper feeding device;

[0027] Figure 6D It is along Figure 6C A cross-sectional schematic diagram of the paper feeding device of section line BB.

[0028] Explanation of reference numerals in the attached figures

[0029] 100: Paper feeding device

[0030] 110: Machine Body

[0031] 111: Paper feeding channel

[0032] 112: Outer shell

[0033] 113: Support component

[0034] 120: Paper delivery wheel

[0035] 130, 130a: Paper clamping parts

[0036] 131, 131a: Paper pressing arm

[0037] 1311: Lower edge

[0038] 132, 132a: Conductors

[0039] 140: Monitoring Components

[0040] 141: Transmitter

[0041] 142: Receiver

[0042] 150: Conductive component

[0043] 151: Conductive sheet

[0044] 152: Conductive bristles

[0045] 153: Fixing iron plate

[0046] 154: Grounding wire

[0047] 160: Locking hardware

[0048] 170: Conductive shaft

[0049] 180: Paper Picking Roller

[0050] 190: Pallet

[0051] AA, BB: Section lines

[0052] LP: Detection optical path

[0053] MP: Movement Path

[0054] P: Paper Detailed Implementation

[0055] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same component reference numerals are used in the drawings and description to denote the same or similar parts.

[0056] Figure 1 This is a perspective view of a paper feeding device according to an embodiment of the present invention. Figure 2 yes Figure 1 A three-dimensional diagram of the paper feeding device after the outer casing has been removed. Figure 3A yes Figure 2 A three-dimensional diagram of the paper feeding device after the support components have been removed. Figure 3B yes Figure 3A A side view of the paper feeding device. Figure 3C yes Figure 3A A top view schematic diagram of the paper feeding device. Figure 3D It is along Figure 3C A cross-sectional schematic diagram of the paper feeding device with section line AA.

[0057] Please refer to Figures 1 to 3DThe paper feeding device 100 of this embodiment can be, for example, an automatic paper feeding scanner, a multifunction printer, or a copier, but this utility model is not limited thereto. The paper feeding device 100 of this embodiment includes a body 110, a paper take-up roller 180, and a tray 190. The body 110 has a paper feeding channel 111, a housing 112, and a support member 113, with the paper feeding channel 111 and support member 113 located within the housing 112. The paper take-up roller 180 is located within the body 110 and pivotally connected to the support member 113 of the body 110. The tray 190 is connected to the body 110 and is adapted to carry paper P. The paper P is adapted to be driven by the paper take-up roller 180, so that the paper P is transported from above the tray 190 into the paper feeding channel 111 inside the housing 112.

[0058] Furthermore, the paper feeding device 100 of this embodiment includes a paper feeding roller 120 and at least one paper pressing member 130. The paper feeding roller 120 is pivotally connected to the support member 113 of the machine body 110 and located below the paper feeding channel 111 for continuing to transport paper P. The paper pressing member 130 is pivotally connected to the support member 113 of the machine body 110, and extends into the paper feeding channel 111 from above. The paper pressing member 130 is disposed above the paper feeding roller 120 to flatten the paper P transported by the paper feeding roller 120 and prevent it from wobbling up and down arbitrarily. Figure 3B As shown, paper P is adapted to be driven by paper pick-up roller 180 into paper feed channel 111 and pass between paper feed roller 120 and paper press 130. During the transport of paper P, paper press 130 can contact paper P to remove static electricity from paper P.

[0059] like Figure 3C As shown, at least one paper pressing element 130 in this embodiment includes a pair of paper pressing elements 130. This pair of paper pressing elements 130 is located above opposite sides of the paper feeding channel 111. In other embodiments, the paper feeding device 100 may have only one paper pressing element 130 or more paper pressing elements 130, and this invention is not limited thereto.

[0060] The following describes the structure of the paper feeding device 100 in this embodiment for removing static electricity from the paper P. To keep the description concise, only one of the paper pressing components 130 will be described below.

[0061] Figure 4 yes Figure 3A An exploded view of the paper-pressing component. Please also refer to... Figure 3B , Figure 3D and Figure 4The paper pressing component 130 in this embodiment includes a paper pressing arm 131 and a conductor 132. The paper pressing arm 131 is pivotally connected to the support member 113 of the machine body 110 via a conductive pivot 170, and the material of the paper pressing arm 131 is, for example, plastic, but this utility model is not limited thereto. The conductor 132 is connected to the paper pressing arm 131 and is disposed at the lower edge 1311 of the paper pressing arm 131. The conductor 132 is adapted to contact the paper P.

[0062] Furthermore, the paper feeding device 100 of this embodiment also includes a conductive assembly 150 disposed within the housing 112 of the body 110. The conductive assembly 150 is located above the paper pressing member 130 and away from the paper feeding channel 111. Specifically, the conductive assembly 150 includes a conductive sheet 151 and a conductive bristle 152. The conductive sheet 151 is locked to the support member 113 of the body 110 by a locking fastener 160. The conductive bristle 152 is disposed at the end of the conductive sheet 151 away from the locking fastener 160 and close to the paper pressing member 130. The paper pressing member 130 is pivotally connected to the body 110 via a conductive shaft 170, so that the conductive sheet 132 is electrically connected to the conductive shaft 170. The conductive bristle 152 contacts the conductive shaft 170, so that the conductive bristle 152 is electrically connected to the conductive shaft 170. Thus, the conductor 132 of the paper pressing component 130 is electrically connected to the conductive bristles 152 and the conductive sheet 151 via the conductive shaft 170.

[0063] In addition, the conductive assembly 150 also includes a fixing iron plate 153. The fixing iron plate 153 and the conductive bristles 152 are disposed at opposite ends of the conductive sheet 151, and the fixing iron plate 153 and the conductive sheet 151 are locked to the support member 113 of the body 110 by a locking fastener 160. Thus, the fixing iron plate 153 is electrically connected to the conductive bristles 152 through the conductive sheet 151.

[0064] When paper P is transported between the paper feed roller 120 and the paper pressing member 130, the conductor 132 of the paper pressing member 130 contacts the paper P, causing static electricity on the paper P to move towards the conductor 132 and leave the paper P. As the static electricity moves from the paper P to the conductor 132, it sequentially moves from the conductor 132 to the conductive shaft 170, the conductive bristles 152, the conductive sheet 151, and the fixed iron plate 153. Finally, the static electricity is connected to the external ground via the grounding wire 154 connected to the fixed iron plate 153.

[0065] Therefore, through the above design, when the paper P passes between the paper pressing member 130 and the paper feeding roller 120 and the conductor 132 contacts the paper P, the static electricity on the paper P can be moved to the conductor 132 and sequentially pass through the conductive shaft 170, the conductive bristles 152, the conductive sheet 151 and the fixed iron sheet 153, thereby removing the static electricity on the paper P, thus avoiding the situation where the paper P is attracted to the paper pressing member 130 and the paper feeding roller 120 due to static electricity and causing paper jam.

[0066] In this embodiment, the paper pressing arm 131 and the conductor 132 can be joined together, for example, by interference assembly. In another embodiment, the paper pressing arm 131 and the conductor 132 can be joined together by embedding molding.

[0067] in addition, Figure 5 This is a schematic diagram of the appearance of a paper-pressing component according to another embodiment of the present invention. In this embodiment, the paper-pressing component 130a is made of metal, and the paper-pressing arm 131a and the conductor 132a are integrally formed. For example, in this embodiment, both the paper-pressing arm 131a and the conductor 132a can be made of metal, or the body of the paper-pressing arm 131a may not be made of metal, but metal may be electroplated onto the surface of the paper-pressing arm 131a, so that the paper-pressing arm 131a and the conductor 132a are electrically connected. Therefore, the paper-pressing component 130a in this embodiment can also remove static electricity from the paper P by contacting the paper P to conduct the static electricity on the paper P to the external ground.

[0068] The paper feeding device 100 of this embodiment also has the effect of real-time detection of paper P wrinkles and paper jams. The relevant structure of the paper feeding device 100 for detecting paper P wrinkles and paper jams is further described below.

[0069] like Figures 3A to 3D As shown, the paper feeding device 100 of this embodiment also includes a monitoring component 140. The monitoring component 140 is disposed inside the machine body 110 and located above the paper feeding channel 111, and the monitoring component 140 is located on the moving path MP of the paper pressing component 130.

[0070] Specifically, in this embodiment, the monitoring component 140 is located on the side of the paper pressing member 130 away from the conductive rotating shaft 170, and the monitoring component 140 includes a transmitter 141 and a receiver 142 arranged at intervals between each other. The paper pressing member 130 is adapted to rotate relative to the machine body 110 and move closer to the transmitter 141 and the receiver 142 to trigger the monitoring component 140, thereby stopping the paper feed roller 120 from rotating and stopping the transport of paper P.

[0071] In this embodiment, the monitoring component 140 is, for example, a light sensor. The transmitter 141 emits a light beam through the detection optical path LP between the transmitter 141 and the receiver 142 towards the receiver 142, and the intensity of the light beam received by the receiver 142 changes to detect whether the paper pressing component 130 is approaching. However, in other embodiments, the monitoring component 140 can also be a magnetic sensor, utilizing changes in the magnetic field between the transmitter 141 and the receiver 142 to detect whether the paper pressing component 130 is approaching. This invention does not limit the type of monitoring component 140.

[0072] Figure 6A yes Figure 3A A three-dimensional schematic diagram of the paper feeding device's pressing component moving into the monitoring assembly. Figure 6B yes Figure 6A A side view of the paper feeding device. Figure 6C yes Figure 6A A top view schematic diagram of the paper feeding device. Figure 6D It is along Figure 6C A cross-sectional schematic diagram of the paper feeding device of section line BB.

[0073] Please refer to Figures 3A to 3D and Figures 6A to 6D Specifically, when paper P passes between the paper pressing member 130 and the paper feeding roller 120 and is attracted to the paper pressing member 130 or the paper feeding roller 120, causing paper P to wrinkle and jam, the paper pressing member 130 is pushed by the wrinkled paper P to rotate relative to the machine body 110 along the moving path MP and move between the transmitter 141 and the receiver 142 (e.g., Figures 6A to 6D (As shown). At this time, the detection optical path LP between the transmitter 141 and the receiver 142 is blocked by the paper piece 130, which triggers the monitoring component 140 to stop the paper feed roller 120 from rotating, thereby stopping the transport of paper P.

[0074] In other words, by setting up the paper pressing component 130 and the monitoring component 140 in this embodiment, when the paper P becomes wrinkled and jammed, the paper pressing component 130 is pushed by the paper P and triggers the monitoring component 140 in real time, and stops transporting the paper P, so as to achieve the effect of real-time detection of paper P wrinkles and jams, and also prevent the wrinkled paper P from continuing to be transported, which would damage the service life of components such as the paper feeding roller 120 and the paper pressing component 130 inside the machine body 110.

[0075] It should be added that the above description only uses one of the paper pressing components 130 with a monitoring component 140 and a transmission component 150, but the other paper pressing component 130 can also be equipped with a monitoring component 140 and a transmission component 150 at the same time.

[0076] Furthermore, this utility model does not limit the aforementioned paper P to a single sheet of paper P; paper P can also be multiple sheets of paper P or a thicker sheet of paper. In other words, this utility model does not limit the type of paper P.

[0077] In summary, the paper feeding device of this utility model includes at least one paper pressing component and a conductive sheet, conductive bristles, and a fixing iron plate electrically connected to the paper pressing component via a conductive rotating shaft. The conductive body of the paper pressing component is adapted to contact the paper during the paper feeding process, so that the static electricity on the paper can be sequentially moved to the conductive body, conductive rotating shaft, conductive bristles, conductive sheet, and fixing iron plate, thereby removing the static electricity on the paper and avoiding paper jams caused by the paper being attracted to the paper pressing component and the paper feeding roller due to static electricity.

[0078] In addition, the paper feeding device of this utility model also includes a monitoring component located on the moving path of the paper pressing component. When the paper becomes wrinkled and jammed, the paper pressing component is pushed by the paper and triggers the monitoring component in real time, stopping the paper feeding. This achieves the effect of real-time detection of paper wrinkles and jams, and also prevents wrinkled paper from continuing to be fed, thus avoiding damage to the service life of components such as the paper feeding rollers and paper pressing component inside the machine.

[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A paper feeding device, characterized in that, include: The machine body has a paper feeding channel; The paper feed roller is pivotally connected to the machine body and located below the paper feed channel; as well as At least one paper pressing element is pivotally connected to the machine body and extends into the paper feeding channel. The at least one paper pressing element is disposed above the paper feeding roller and includes: The paper pressing arm is pivotally connected to the machine body; and A conductor is connected to the paper-pressing arm, the conductor being disposed at the lower edge of the paper-pressing arm and adapted to contact the paper. The paper is adapted to enter the paper feeding channel and pass between the paper feeding roller and the at least one paper pressing member, and the at least one paper pressing member can contact the paper to remove static electricity from the paper.

2. The paper feeding device according to claim 1, characterized in that, The paper pressing arm and the conductor are joined together by interference assembly.

3. The paper feeding device according to claim 1, characterized in that, The paper pressing arm and the conductor are joined together by embedding molding.

4. The paper feeding device according to claim 1, characterized in that, The material of the at least one paper pressing component is metal, and the paper pressing arm and the conductor are integrally formed.

5. The paper feeding device according to claim 1, characterized in that, It also includes a conductive component disposed within the body, the conductive component comprising: The conductive sheet is secured to the body by fasteners; and Conductive bristles are disposed at one end of the conductive sheet away from the locking fastener, wherein at least one paper pressing component is pivotally connected to the machine body via a conductive shaft, and the conductive bristles contact the conductive shaft to be electrically connected to the at least one paper pressing component.

6. The paper feeding device according to claim 5, characterized in that, The conductive component also includes a fixing iron plate, which is locked to the body along with the conductive plate by the locking fastener.

7. The paper feeding device according to claim 1, characterized in that, It also includes a monitoring component disposed within the machine body and above the paper feeding channel, the monitoring component being located on the movement path of the at least one paper pressing element.

8. The paper feeding device according to claim 7, characterized in that, The monitoring component includes a transmitter and a receiver spaced apart from each other, and the at least one paper pressing element is adapted to rotate relative to the machine body and move closer to the transmitter and the receiver.

9. The paper feeding device according to claim 8, characterized in that, When the paper wrinkles, the at least one paper pressing element is pushed by the paper to rotate relative to the machine body and move between the transmitter and the receiver. The detection optical path between the transmitter and the receiver is blocked by the at least one paper pressing element, triggering the monitoring component to stop the paper feed roller from rotating and thus stop the paper from being transported.

10. The paper feeding device according to claim 1, characterized in that, The at least one paper pressing element includes a pair of paper pressing elements located above opposite sides of the paper feeding channel.

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