CN113620079A - Sheet feeding device and image forming apparatus - Google Patents

Sheet feeding device and image forming apparatus Download PDF

Info

Publication number
CN113620079A
CN113620079A CN202010371937.5A CN202010371937A CN113620079A CN 113620079 A CN113620079 A CN 113620079A CN 202010371937 A CN202010371937 A CN 202010371937A CN 113620079 A CN113620079 A CN 113620079A
Authority
CN
China
Prior art keywords
paper
sheet
tray
placing tray
side wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010371937.5A
Other languages
Chinese (zh)
Inventor
梁健超
吉月婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to CN202010371937.5A priority Critical patent/CN113620079A/en
Publication of CN113620079A publication Critical patent/CN113620079A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H1/00—Supports or magazines for piles from which articles are to be separated
    • B65H1/04—Supports or magazines for piles from which articles are to be separated adapted to support articles substantially horizontally, e.g. for separation from top of pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
    • B65H2405/11—Parts and details thereof
    • B65H2405/114—Side, i.e. portion parallel to the feeding / delivering direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/11—Length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/10—Size; Dimensions
    • B65H2511/12—Width
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2511/00—Dimensions; Position; Numbers; Identification; Occurrences
    • B65H2511/20—Location in space
    • B65H2511/22—Distance

Abstract

The invention relates to a paper feeding device and an image forming apparatus, wherein the paper feeding device comprises a box body, and the box body comprises an accommodating cavity; the paper placing tray is horizontally arranged in the accommodating cavity; the regulating plate is positioned in the paper placing tray, can move in the position of the paper placing tray and is suitable for regulating paper; the control part controls the paper placing tray to downwards incline along a preset gradient to extend out of the accommodating cavity when the paper placing tray is pulled out of the box body; when the paper placing tray is pushed into the box body, the control part controls the paper placing tray to reset. Therefore, the paper placing tray is in a downward inclined state to perform paper placing operation, and under the action of gravity, the paper side edges are in contact with the side wall of the paper placing tray at the lowest position, so that the paper side edges are automatically aligned, and the difficulty of paper regulation operation is reduced.

Description

Sheet feeding device and image forming apparatus
Technical Field
The present invention relates to a sheet feeding apparatus and an image forming apparatus, and more particularly to a sheet feeding apparatus and an image forming apparatus including a sheet receiving tray that can be inclined downward along a predetermined slope to protrude out of an accommodating chamber.
Background
In the conventional sheet feeding device, the sheets are stacked in a sheet placing tray, and a regulating mechanism is generally provided in the sheet placing tray, and the regulating mechanism includes a rear end regulating plate located at a rear end of the sheet and side regulating plates located at both sides of the sheet. The rear end regulating plate is movable in a sheet conveying direction for regulating the rear end of the sheet so as to align the front end of the sheet. The side regulating plates are relatively movable on both sides of the sheet to align both sides of the sheet. The regulating mechanism regulates the stacked paper, which helps to reduce instability of the paper feeding device in the paper feeding process.
With the continuous development of printer technology, paper feeding speed is faster and faster, and the variety of paper applications is increasing day by day. For a large-capacity paper box or a large-size paper seed, the requirement of regulation is difficult to meet gradually by only utilizing the rear end regulation plate and the side regulation plate, and the situation of pushing immovably is easy to occur, so that the paper forms arching, or the tail end of the paper is crushed.
Therefore, the paper feeding device is still to be improved to improve the regulation effect and ensure the stability of paper feeding.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to reduce the difficulty of a paper sheet regulating operation.
The present invention provides a paper feeding device, comprising: the box body comprises an accommodating cavity; the paper placing tray is horizontally arranged in the accommodating cavity; the regulating plate is positioned in the paper placing tray, can move in the position of the paper placing tray and is suitable for regulating paper; the control part controls the paper placing tray to downwards incline along a preset gradient to extend out of the accommodating cavity when the paper placing tray is pulled out of the box body; when the paper placing tray is pushed into the box body, the control part controls the paper placing tray to reset.
As a result of intensive studies by the inventors of the present invention, it has been found that when the sheet discharge tray is tilted downward and extends out of the accommodating chamber, the sheet moves downward along the slope formed by the sheet discharge tray under its own weight until the side edge of the sheet comes into contact with the side wall of the sheet discharge tray at the lowest position. Therefore, all the paper side edges are automatically aligned along the side wall of the paper placing tray at the lowest position, so that pre-regulation is automatically realized, the difficulty of paper regulation operation is reduced, and the regulation effect is improved.
In the above paper feeding device, the regulating plate includes two side regulating plates disposed opposite to each other, and when the control unit controls the paper discharge tray to be reset, the two side regulating plates move in opposite directions on both sides of the paper to regulate the paper toward the center of the paper discharge tray.
Therefore, after the control part controls the paper placing tray to reset, the two side regulating plates are linked at two sides of the paper, the paper is further regulated towards the center of the paper placing tray until two sides of the paper respectively touch the two side regulating plates, and therefore alignment of two sides of the stacked paper is further guaranteed.
In the above sheet supplying apparatus, the sheet discharge tray includes a first side wall and a second side wall which are opposed to each other, the first side wall being an outermost side wall of the sheet discharge tray, the second side wall being an innermost side wall of the sheet discharge tray, and the regulating plate is located between the first side wall and the second side wall; when stacked sheets are placed in the sheet placing tray, the regulating plate moves toward the first side wall to regulate the sheets toward the first side wall.
Thus, in the pre-regulation stage, one side edge of the paper is in contact with the first side wall of the paper placing tray. After the pre-regulation is finished, the regulating plate between the first side wall and the second side wall moves towards the first side wall, and the paper is further regulated towards the first side wall, so that the effect of aligning two sides of the stacked paper is further improved.
In the above paper feeding device, the paper feeding device may further include: a paper information acquisition section adapted to acquire paper size information; the regulating plate regulates the paper sheet according to the paper sheet size information acquired by the paper sheet information acquiring section.
From this, paper size information is acquireed to paper information acquisition portion, can accurately set for according to paper size information regulation board movement scheme includes moving direction, displacement distance and moving speed, reduces the risk of damaging the paper when guaranteeing the regulation effect.
In the above paper feeding device, the control unit includes: the driving gear is fixedly arranged on the box body; the inclined rail is arranged at the bottom of the paper placing tray; the rack is fixedly arranged on the paper placing tray and meshed with the driving gear, and when the paper placing tray is pulled out from the box body, the driving gear drives the rack and the paper placing tray to move along the inclined track.
The driving gear drives the rack to move in a rotating mode, and the rack drives the paper placing tray to move along the inclined track, so that when paper is placed, the control portion controls the paper placing tray to extend out of the accommodating cavity in a downward inclined mode along the inclined track; after the paper placing operation is finished, the control part controls the paper placing tray to move upwards to the accommodating cavity along the inclined rail so as to reset.
In the above paper feeding device, the paper feeding device may further include: the two ends of the first traction chain are respectively connected with the first side wall and the box body; and two ends of the second traction chain are respectively connected with the second side wall and the box body.
Therefore, the first traction chain and the second traction chain control the distance that the paper placing tray extends out of the accommodating cavity, the paper placing tray is prevented from being separated from a preset track and falling from a high position to injure people, and the safety of paper placing operation is improved.
In the above paper feeding device, the paper feeding device may further include: and the sensing part is suitable for sensing whether the paper placing tray resets or not.
Therefore, whether the paper placing tray is reset or not can be accurately judged through the sensing part, whether the paper placing tray extends out of or moves into the accommodating cavity or not can be conveniently monitored by the control part according to a preset program, abnormal operation of the control part can be found timely, and normal operation of subsequent operation of the paper supply device is guaranteed.
In the above paper feeding device, a ratio of a maximum value of a path of the paper feeding tray extending out of the accommodating chamber to a width of the paper feeding tray is 0.45, wherein the width of the paper feeding tray is a distance between the first side wall and the second side wall.
Therefore, the phenomenon that the distance from the paper placing tray to the accommodating cavity is too large is avoided, the paper placing tray is prevented from breaking away from the preset track and falling from a high position to hurt people, and in addition, the phenomenon that the distance from the paper placing tray to the accommodating cavity is too small to influence the pre-collimation effect is avoided.
In the above paper feeding device, when the paper placing tray extends out of the accommodating chamber, a space is formed between the second side wall and a top wall of the accommodating chamber.
Therefore, in the process that the paper placing tray downwards inclines along the preset gradient and extends out of the containing cavity, the second side wall is prevented from being lifted to cause collision with the top wall of the containing cavity, and therefore the paper placing tray is guaranteed to smoothly extend out of the containing cavity.
In the above paper feeding device, the inclination angle of the predetermined slope is less than 20 °.
Therefore, the inclination angle of the paper placing tray is prevented from being too large, the paper placing tray is prevented from falling from a high position away from a preset track, and the safety of paper placing operation is improved.
The paper feeding device of the present invention can be applied to an image forming apparatus, and can provide the above-described effects.
Drawings
FIG. 1 is a schematic view of an image forming apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic view of a structure of a sheet feeding apparatus according to an embodiment of the present invention;
fig. 3 is a schematic view of a state in which a sheet discharge tray of the sheet supplying apparatus shown in fig. 2 is placed in the accommodating chamber;
fig. 4 is a schematic view of the sheet discharge tray of the sheet feeding device shown in fig. 2 in a state pulled out from the inside of the casing.
Detailed Description
Hereinafter, a specific configuration of the paper feeding device 10 of the present invention will be described in detail.
Referring to fig. 1 and 2, a sheet feeding device 10 includes: the box body comprises an accommodating cavity; the paper placing tray 100 is arranged in the accommodating cavity in a horizontal state; the regulating plate is positioned in the paper placing tray 100, the position of the regulating plate in the paper placing tray 100 can be moved, and the regulating plate is suitable for regulating paper; the control part controls the paper placing tray 100 to downwards incline along a preset gradient to extend out of the accommodating cavity when the paper placing tray 100 is pulled out of the box body; when the paper tray 100 is pushed into the box body, the control part controls the paper tray 100 to reset.
The paper placing operation is performed in a state that the paper placing tray 100 is inclined downwards and extends out of the accommodating cavity, and the paper moves downwards along the slope formed by the paper placing tray 100 under the action of the gravity of the paper until the side edge of the paper is contacted with the side wall of the paper placing tray 100 at the lowest position. Therefore, all the paper side edges are automatically aligned along the side wall of the paper placing tray 100 at the lowest position, so that pre-regulation is automatically realized, the difficulty of paper regulation operation is reduced, and the regulation effect is improved.
As shown in fig. 2, in the present embodiment, the paper tray 100 includes a first side wall 101 and a second side wall 102 opposite to each other, and the first side wall 101 and the second side wall 102 are vertically disposed on the bottom wall. The first side wall 101 serves as an outermost side wall of the paper feeding tray 100, and the second side wall 102 serves as an innermost side wall of the paper feeding tray 100. Here, the outermost means a drawing side of the paper discharge tray 100, and the innermost means the other side opposite to the drawing side.
When paper is placed, the first sidewall 101 of the paper placing tray 100 firstly extends outwards from the accommodating cavity, a component of the moving direction of the paper placing tray 100, which is parallel to the horizontal plane, is along a first direction x, and the first direction x is perpendicular to the first sidewall 101 and is directed to the first sidewall 101 by the second sidewall 102. Further, the moving direction of the discharge tray 100 also has a vertically downward component.
The paper tray 100 further includes a third sidewall 103 and a fourth sidewall 104 opposite to each other, the third sidewall 103 and the fourth sidewall 104 are vertically disposed on the bottom wall, and the first sidewall 101, the second sidewall 102, the third sidewall 103 and the fourth sidewall 104 enclose an accommodating space of the paper tray 100.
In this embodiment, the bottom wall of the paper tray 100 is rectangular.
In this embodiment, the paper to be placed is rectangular, and the paper has opposite front and rear ends and two opposite side edges. In the paper tray 100, the front end of the paper faces the third sidewall 103, the rear end of the paper faces the fourth sidewall 104, and the two sides of the paper are parallel to the first sidewall 101 and the second sidewall 102.
The sheet feeding device 10 then conveys the sheet in a second direction y, which is parallel to the first side wall 101 and is directed from the rear end of the sheet to the front end of the sheet.
In this embodiment, the regulating plates include two side regulating plates 210 disposed opposite to each other, and when the control unit controls the paper feeding tray 100 to be reset, the two side regulating plates 210 move in opposite directions on both sides of the paper to regulate the paper toward the center of the paper feeding tray 100.
Therefore, after the pre-regulation is finished, the two side regulation plates 210 are linked at two sides of the paper, and the paper is further regulated towards the center of the paper placing tray 100 until two sides of the paper respectively touch the two side regulation plates 210, so that two sides of the stacked paper are aligned.
In this embodiment, the paper feeding device 10 further includes: a first rack (not shown), the top of which is planar, the bottom of which is multi-tooth, and the side regulating plate 210 is fixed on the top surface of the first rack; a first connecting gear (not shown in the figure), the first connecting gear is meshed with the bottom of the first rack, and a rotating shaft of the first connecting gear is movably connected with the paper placing tray 100; the first driving motor 310, the first driving motor 310 drives the first connecting gear to rotate, and the first rack drives the side regulating plate 210 to move.
In other implementations, the side regulating plate 210 may also be connected to the discharge tray 100 by a conveyor belt structure.
In this embodiment, the regulation plate further includes a rear regulation plate 220, the rear regulation plate 220 is located between the third sidewall 103 and the fourth sidewall 104, and the rear regulation plate 220 is disposed in parallel with the third sidewall 103 and the fourth sidewall 104. After the stacked sheets are placed in the sheet placing tray 100, the rear end regulating plate 220 moves toward the third side wall 103 to push the rear ends of the sheets so that the both ends of the sheets are aligned.
In this embodiment, the paper feeding device 10 further includes: a second rack (not shown), the top of which is planar, the bottom of which is multi-tooth, and the rear regulation plate 220 is fixedly arranged on the top surface of the second rack; a second connecting gear (not shown in the figure), the second connecting gear is meshed with the bottom of the second rack rail, and a rotating shaft of the second connecting gear is movably connected with the paper placing tray 100; the second driving motor 320 drives the second connecting gear to rotate, and the second rack drives the rear end regulation plate 220 to move.
In other implementations, the rear end regulating plate 220 may also be connected to the discharge tray 100 by a conveyor belt structure.
Compared with the manual movement of the side regulating plate 210 and the rear regulating plate 220, the movement of the side regulating plate 210 is controlled by the first rack, the first connecting gear and the first driving motor 310, and the movement of the rear regulating plate 220 is controlled by the second rack, the second connecting gear and the second driving motor 320, so that the operation automation is facilitated, and the improvement of the operation accuracy is facilitated.
In this embodiment, when the paper tray 100 returns to the horizontal state, the side regulating plate 210 and the rear regulating plate 220 move to regulate the paper. In other embodiments, the sheet may be regulated in a state where the sheet discharge tray 100 is inclined.
In another embodiment, the regulation plate includes only one side regulation plate 210, the side regulation plate 210 is located between the first side wall 101 and the second side wall 102, and the side regulation plate 210 is disposed in parallel with the first side wall 101 and the second side wall 102. When the stacked sheets are loaded in the sheet loading tray 100, the side regulating plate 210 moves toward the first side wall 101 to regulate the sheets toward the first side wall 101.
Thus, in the pre-regulation stage, one of the side edges of the sheet comes into contact with the first side wall 101 of the sheet discharge tray 100 by itself. After the pre-regulation is finished, the side regulating plate 210 moves towards the first side wall 101 to push the other side edge of the paper, so that the paper is clamped between the first side wall 101 and the side regulating plate 210, and the paper is regulated further towards the first side wall 101, so that the effect of aligning two sides of the stacked paper is further improved.
In the present embodiment, the paper feeding device 10 may further include: a paper information acquisition section (not shown in the figure) adapted to acquire paper size information; the regulating plate regulates the paper sheet according to the paper sheet size information acquired by the paper sheet information acquiring section.
From this, paper size information is acquireed to paper information acquisition portion, can accurately set for according to paper size information regulation board movement scheme includes moving direction, displacement distance and moving speed, reduces the risk of damaging the paper when guaranteeing the regulation effect.
The paper size information includes paper length information and paper width information, wherein the paper length is the interval between two ends of the paper, and the paper width is the interval between two opposite sides of the paper.
The sheet feeding device 10 further includes: a regulating plate control unit adapted to control movement of the regulating plate based on the paper size information.
In this embodiment, according to the paper width information, the regulating plate control unit may control the distance between the two side regulating plates 210, so that the distance between the two side regulating plates 210 is finally consistent with the paper width, thereby realizing accurate regulation of both sides of the stacked paper.
In this embodiment, according to the length information of the paper, the regulating plate control unit may control the distance between the rear end regulating plate 220 and the third side wall 103, so that the distance between the rear end regulating plate 220 and the third side wall 103 is finally consistent with the length of the paper, which is beneficial to realizing accurate regulation of the front and rear ends of the stacked paper.
Referring to fig. 3 and 4, in the present embodiment, the control unit includes: the driving gear 400 is fixedly arranged on the box body; the inclined rail 410, the inclined rail 410 is arranged at the bottom of the paper placing tray 100; the rack 420 is fixedly arranged on the paper placing tray 100, the rack 420 is meshed with the driving gear 400, and when the paper placing tray 100 is pulled out of the box body, the driving gear 400 drives the rack 420 and the paper placing tray 100 to move along the inclined track 410.
Thus, when the paper placing operation is performed, the control part controls the paper placing tray 100 to extend out of the accommodating cavity along the inclined rail 410 in a downward inclination manner; after the paper feeding operation is finished, the control part controls the paper feeding tray 100 to move upwards along the inclined rail 410 to the accommodating cavity so as to reset.
In this embodiment, the number of the racks 420 is two, and the racks are respectively disposed on the third side wall 103 and the fourth side wall 104 of the paper tray 100, and the number of the driving gears 400 is the same as that of the racks 420, and is also two.
In this embodiment, the rack 420 includes a straight line section and a curved line section, and the curved line section is closer to the second sidewall 102 than the straight line section, and one end of the straight line section is smoothly connected with the curved line section. The other end of the straight line segment extends towards the first side wall 101, and the extending direction of the straight line segment is perpendicular to the first side wall 101.
In this embodiment, the curved section is arc-shaped. The sheet feeding device 10 further includes: the rotating shaft 430 is arranged on the center of the curved section, and the rotating shaft 430 is perpendicular to the third side wall 103. When the driving gear 400 is engaged with the curved section of the rack gear 420, the curved section rotates about the rotation shaft 430.
As shown in fig. 3, in an initial state, the paper feeding tray 100 is horizontally disposed in the accommodating cavity, and the driving gear 400 is close to one end of the straight line section extending towards the first side wall 101. With reference to fig. 3 and 4, the driving gear 400 rotates counterclockwise, the driving gear 400 continues to engage with the straight line segment, and drives the rack 420 and the paper tray 100 to move toward the outside of the accommodating cavity along the first direction x until the driving gear 400 engages with the curved line segment. When the driving gear 400 is engaged with the curved segment, the curved segment rotates counterclockwise around the rotating shaft 430 to drive the paper feeding tray 100 to move downwards along the inclined track 410 until the path of the paper feeding tray 100 extending out of the accommodating cavity reaches a predetermined value, and the paper feeding tray 100 is stationary in an inclined state so that an operator can place stacked paper in the paper feeding tray 100. Since the sheet feeding tray 100 is still in the inclined state, the sheets to be fed can be prespecified to reduce the difficulty of sheet regulation operation.
After the paper feeding operation is finished, the driving gear 400 rotates clockwise, the driving gear 400 is engaged with the curved segment, and the curved segment rotates clockwise around the rotating shaft 430 to drive the paper feeding tray 100 to move upwards along the inclined track 410 until the driving gear 400 is engaged with the straight segment. When the driving gear 400 is engaged with the linear segment, the rack 420 moves along a direction opposite to the first direction x to drive the paper feeding tray 100 to move towards the accommodating cavity, so as to reset the paper feeding tray 100.
In other embodiments, the number of the racks 420 is one, and the racks are disposed on the third sidewall 103 or the fourth sidewall 104. The driving gear 400 corresponds to the rack 420.
In this embodiment, the paper feeding device 10 further includes: a sensing part 510 adapted to sense whether the paper feeding tray 100 is reset.
Therefore, whether the paper feeding tray 100 is reset or not can be accurately judged through the sensing part 510, whether the control part extends or moves the paper feeding tray 100 into the accommodating cavity according to a preset program or not can be conveniently monitored, abnormal operation of the control part can be found timely, and normal operation of subsequent operation of the paper feeding device 10 is guaranteed.
In this embodiment, the bottom wall of the accommodating cavity is fixedly provided with a supporting step 610. When the paper tray 100 is reset, the paper tray 100 is located on the supporting step 610, and the supporting step 610 supports the paper tray 100.
Along the first direction x, the supporting step 610 is adjacent to the second sidewall 102, away from the first sidewall 101.
In this embodiment, the sensing portion 510 is disposed on the supporting step 610. In other embodiments, the sensing portion 510 may also be disposed on an inner wall of the receiving cavity corresponding to the second sidewall 102.
In this embodiment, an inductor 520 is disposed at an end of the rack 420 close to the second sidewall 102, and the inductor 520 is adapted to sense a moving distance of the driving gear 400 relative to the rack 420, so as to deduce a moving distance of the discharge tray 100 relative to the accommodating cavity.
In this embodiment, the paper feeding device 10 further includes: the locking portions 630 are suitable for fixing the relative positions of the paper feeding tray 100 and the accommodating cavity when the paper feeding tray 100 is reset, so that the paper feeding tray 100 is prevented from being moved out of the accommodating cavity under the influence of external environment vibration.
In this embodiment, a rotating roller 620 is further fixedly disposed in the accommodating cavity, the rotating roller 620 is located at the bottom of the inclined track 410, and when the paper tray 100 moves along the inclined track 410, the inclined track 410 moves relative to the rotating roller 620.
The rotating roller 620 helps to reduce friction force of the inclined rail 410 in moving, and facilitates the paper feeding tray 100 to be pulled out of the cabinet or pushed into the cabinet.
In this embodiment, the paper feeding device 10 further includes: the two ends of the first traction chain 440 are respectively connected with the first side wall 101 and the box body; and two ends of the second drag chain are respectively connected with the second side wall 102 and the box body.
When the first traction chain 440 and the second traction chain are fully extended, the path of the paper discharge tray 100 extending out of the accommodating cavity reaches the maximum. Therefore, the first traction chain 440 and the second traction chain control the distance that the paper placing tray 100 extends out of the accommodating cavity, the paper placing tray 100 is prevented from breaking away from a preset track and falling from a high place to hurt people, and the safety of paper placing operation is improved.
In this embodiment, a ratio of a maximum value of a path of the paper tray 100 extending out of the accommodating cavity to a width of the paper tray 100 is 0.45, where the width of the paper tray 100 is a distance between the first side wall 101 and the second side wall 102.
Therefore, the phenomenon that the distance that the paper placing tray 100 extends out of the accommodating cavity is too large is avoided, the phenomenon that the paper placing tray 100 breaks away from a preset track and falls off from a high position to hurt people is prevented, and in addition, the phenomenon that the distance that the paper placing tray 100 extends out of the accommodating cavity is too small to influence a pre-collimation effect is avoided.
In the present embodiment, the inclination angle of the predetermined slope is less than 20 °.
Therefore, the paper placing tray 100 is prevented from being inclined at an excessively large angle, so that the paper placing tray 100 is prevented from falling off a predetermined rail from a high position, and the safety of the paper placing operation is improved.
Referring to fig. 1, the present invention also provides an image forming apparatus 1 including the above-described paper feeding apparatus 10.
The above-described paper feeding device 10 can be applied to the image forming apparatus 1, and can provide the above-described effects.
The image forming apparatus 1 further includes: a conveying section 30 including a plurality of sets of conveying roller pairs adapted to convey a sheet along a predetermined conveying path; a transfer section 31 adapted to transfer toner onto a sheet; and a fixing section 32 adapted to perform a fixing process on the paper.
The image forming apparatus 1 further includes: a display unit 20 adapted to display the operating states of the paper feeding device 10, the conveying unit 30, the transfer unit 31, and the fixing unit 32, and to display an operation instruction of an operator; and an operation panel 21 adapted for an operator to input an operation instruction.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (11)

1. A sheet feeding device comprising:
the box body comprises an accommodating cavity;
the paper placing tray is horizontally arranged in the accommodating cavity;
the regulating plate is positioned in the paper placing tray, can move in the position of the paper placing tray and is suitable for regulating paper;
it is characterized by also comprising:
the control part controls the paper placing tray to downwards incline along a preset gradient to extend out of the accommodating cavity when the paper placing tray is pulled out of the box body; when the paper placing tray is pushed into the box body, the control part controls the paper placing tray to reset.
2. The sheet feeding apparatus as claimed in claim 1, wherein the regulating plate includes two side regulating plates disposed opposite to each other, and when the control section controls the sheet discharge tray to be reset, the two side regulating plates move toward each other on both sides of the sheet to regulate the sheet toward the center of the sheet discharge tray.
3. The sheet feeding apparatus as set forth in claim 1, wherein the sheet discharge tray includes first and second opposing side walls, the first side wall being an outermost side wall of the sheet discharge tray, the second side wall being an innermost side wall of the sheet discharge tray, the regulating plate being located between the first and second side walls; when stacked sheets are placed in the sheet placing tray, the regulating plate moves toward the first side wall to regulate the sheets toward the first side wall.
4. The sheet supply device according to any one of claims 1 to 3, further comprising:
a paper information acquisition section adapted to acquire paper size information;
the regulating plate regulates the paper sheet according to the paper sheet size information acquired by the paper sheet information acquiring section.
5. The sheet feeding apparatus according to any one of claims 1 to 4, wherein the control portion includes:
the driving gear is fixedly arranged on the box body;
the inclined rail is arranged at the bottom of the paper placing tray;
the rack is fixedly arranged on the paper placing tray and meshed with the driving gear, and when the paper placing tray is pulled out from the box body, the driving gear drives the rack and the paper placing tray to move along the inclined track.
6. The sheet feeding apparatus of claim 3, further comprising:
the two ends of the first traction chain are respectively connected with the first side wall and the box body;
and two ends of the second traction chain are respectively connected with the second side wall and the box body.
7. The sheet supply apparatus as claimed in any one of claims 1 to 6, further comprising:
and the sensing part is suitable for sensing whether the paper placing tray resets or not.
8. The sheet supplying apparatus as set forth in claim 3, wherein a ratio of a maximum value of a path of the sheet discharge tray extending out of the accommodating chamber to a width of the sheet discharge tray, which is a distance between the first side wall and the second side wall, is 0.45.
9. The sheet feeding apparatus as set forth in claim 3, wherein the second side wall is spaced from a top wall of the accommodating chamber during extension of the sheet tray out of the accommodating chamber.
10. The sheet supply apparatus as claimed in any one of claims 1 to 9, wherein the inclination angle of the predetermined slope is less than 20 °.
11. An image forming apparatus comprising the sheet feeding apparatus according to any one of claims 1 to 10.
CN202010371937.5A 2020-05-06 2020-05-06 Sheet feeding device and image forming apparatus Pending CN113620079A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010371937.5A CN113620079A (en) 2020-05-06 2020-05-06 Sheet feeding device and image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010371937.5A CN113620079A (en) 2020-05-06 2020-05-06 Sheet feeding device and image forming apparatus

Publications (1)

Publication Number Publication Date
CN113620079A true CN113620079A (en) 2021-11-09

Family

ID=78376517

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010371937.5A Pending CN113620079A (en) 2020-05-06 2020-05-06 Sheet feeding device and image forming apparatus

Country Status (1)

Country Link
CN (1) CN113620079A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04283762A (en) * 1991-03-12 1992-10-08 Murata Mach Ltd Automatic positioning device for document guide
JP2002284361A (en) * 2001-03-27 2002-10-03 Kyocera Mita Corp Paper feeding device and image forming device
JP2005041634A (en) * 2003-07-28 2005-02-17 Tohoku Ricoh Co Ltd Feeder/image forming device
CN1915776A (en) * 2005-08-16 2007-02-21 三星电子株式会社 Image forming apparatus having automatic paper feeding cassette installing device
CN209853380U (en) * 2019-03-26 2019-12-27 全亿大科技（佛山）有限公司 Sheet feeding device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04283762A (en) * 1991-03-12 1992-10-08 Murata Mach Ltd Automatic positioning device for document guide
JP2002284361A (en) * 2001-03-27 2002-10-03 Kyocera Mita Corp Paper feeding device and image forming device
JP2005041634A (en) * 2003-07-28 2005-02-17 Tohoku Ricoh Co Ltd Feeder/image forming device
CN1915776A (en) * 2005-08-16 2007-02-21 三星电子株式会社 Image forming apparatus having automatic paper feeding cassette installing device
CN209853380U (en) * 2019-03-26 2019-12-27 全亿大科技（佛山）有限公司 Sheet feeding device

Similar Documents

Publication Publication Date Title
US5131899A (en) Magazine and method of feeding articles
US4538799A (en) Sheet feeding apparatus
US6457886B1 (en) Card stack lifter and exception feed
US5733093A (en) Stack tube feeder
CN112009967A (en) Coil pipe blank feeding trolley and automatic pipe uncoiling device
CN113620079A (en) Sheet feeding device and image forming apparatus
CN219296386U (en) Adjustable conveying device for aluminum materials
US11414285B2 (en) Transport device and recording device
SE525914C2 (en) Sheet feed device, comprises individually driven feed wheels inside vacuum chamber and vertically movable load relief device
CN210029346U (en) Paper feeding device of printing machine
CN115535604B (en) Material box discharging device and discharging method
CN112193507A (en) Carton buffer storage bin
JP5762258B2 (en) Duplex printing apparatus and paper conveying method in the apparatus
JP2565364B2 (en) Sheet sorter
EP0437646A1 (en) Sorting machine
CN217946525U (en) Robot medicine supplementing equipment
KR100492340B1 (en) A card supply apparatus for card-printer
CN214326598U (en) Paper feeding device for special-shaped paperboards
CN218676465U (en) CD recording printer
CN219116415U (en) Medicine storage device and automatic medicine dispensing machine
CN214983561U (en) Paperboard feeding device
CN114030868B (en) Generalized intelligent mechanical package printer convenient for matching application
CN214827312U (en) Tray storage device
CN209382928U (en) A kind of loading and unloading structure of feeder
EP3612479A1 (en) Angled lift plates in media trays

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20211109