CN220055706U - Paper feeding device of duplicator - Google Patents
Paper feeding device of duplicator Download PDFInfo
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- CN220055706U CN220055706U CN202321597149.3U CN202321597149U CN220055706U CN 220055706 U CN220055706 U CN 220055706U CN 202321597149 U CN202321597149 U CN 202321597149U CN 220055706 U CN220055706 U CN 220055706U
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- flat plate
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- paper feeding
- paper
- fixed
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- 238000001125 extrusion Methods 0.000 claims abstract description 12
- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000005484 gravity Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Abstract
The utility model relates to a paper feeding device of a copying machine, which effectively solves the problems that a plurality of paper sheets enter in friction force and the paper sheets collide on an anti-slip pad; the paper feeding device of the copying machine comprises a rectangular box body with an opening at the upper end, wherein an abdication groove penetrating through the upper end face is formed in the upper end of the left end face of the box body, an anti-slip pad is fixed on the lower end face of the abdication groove, a paper feeding wheel is rotated at the upper end of the left side in the box body, a flat plate moving up and down is arranged in the box body, the flat plate is always placed horizontally, and the flat plate always has upward moving force; according to the utility model, through the cooperation of the balancing weight and the spring, the extrusion force between the paper feeding wheel and the paper can be always kept unchanged, and the problem that after the number of the paper is increased, the friction force between two adjacent papers is increased, so that the friction force between the two adjacent papers is larger than the friction force between the anti-slip pad and the paper, and a plurality of papers move leftwards is solved; and the flat plates are horizontally arranged all the time, so that the paper is prevented from being bumped on the anti-slip pad.
Description
Technical Field
The utility model relates to the field of duplicators, in particular to a paper feeding device of a duplicator.
Background
The existing scheme for solving the problem that a plurality of sheets enter a copying machine at the same time, such as the scheme of an authorized bulletin number CN217102257U, is characterized in that when the copying machine works, the rocker is adjusted to be in a horizontal state by pressing the rocker, the sheets are placed on the rocker, then the first spring drives the rocker to reset, the sheets are pressed against the paper feeding wheel 4 by the pressure of the rocker, then the limiting plate is moved to fix the sheets, the plurality of limiting blocks can be simultaneously driven to move through the gears, the sheets are conveyed through the paper feeding wheel 4, if the plurality of sheets are conveyed through the paper feeding wheel 4, only one sheet is conveyed through the anti-slip pad 3, the friction force between the paper feeding wheel 4 and the sheets is larger than the friction force between the anti-slip pad 3 and the sheets, and the friction force between the anti-slip pad 3 and the sheets is larger than the friction force between the sheets; although the friction force between the paper feeding wheel 4 and the paper is larger than the friction force between the anti-slip pad 3 and the paper, and the friction force between the anti-slip pad 3 and the paper is larger than the friction force between the paper and the paper, so that a plurality of sheets of paper can be prevented from being brought into the printer to a certain extent, when more sheets of paper are put on the rocker, the thickness of the paper can be increased, the upward force of the rocker can increase the extrusion force between the sheets of paper under the blocking of the paper feeding wheel 4, the friction force between the sheets of paper can also be increased along with the increase of the extrusion force, and the friction force between the anti-slip pad 3 and the paper is unchanged, so that the possibility that a plurality of sheets of paper enter simultaneously still can occur; and because the overturned paper is obliquely arranged, when more paper is put in, the inclination angle of the paper at the uppermost side becomes smaller, and the problem that the paper collides with the inner side of the anti-skid pad can occur.
Disclosure of Invention
Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides a paper feeding device of a copying machine, which effectively solves the problems that a plurality of paper sheets enter under friction force and the paper sheets collide on an anti-skid pad.
The technical scheme is that the paper feeding device of the copying machine comprises a rectangular box body with an opening at the upper end, wherein an abdication groove penetrating through the upper end face is formed in the upper end of the left end face of the box body, an anti-slip pad is fixed on the lower end face of the abdication groove, a paper feeding wheel is rotated at the upper end of the left side in the box body, and the paper feeding wheel is arranged front and back; the box body is internally provided with a flat plate which moves up and down, the flat plate is always horizontally placed, and the flat plate always has upward moving force;
when the flat plate moves upwards, the upper end surface of the flat plate contacts with the lower side of the paper feeding wheel and always keeps constant extrusion force;
a gap is reserved between the left end of the flat plate and the anti-skid pad, and the upper end surface of the flat plate is higher than the anti-skid pad.
Two fixing blocks which are arranged left and right are respectively fixed on the front side and the rear side of the flat plate, and a through hole is formed in the upper end face of each fixing block;
the front end face and the rear end face of the box body are respectively provided with two through grooves in the up-down direction, the two through grooves on the corresponding sides are arranged left and right, a vertical straight rod is fixed in each through groove, each straight rod is arranged in one through hole, the flat plate is kept horizontal through the fixing block, and the flat plate can only move up and down.
Four reversing wheels are respectively rotated on the front end face and the rear end face of the box body, the four reversing wheels on the corresponding sides are positioned at the same height and are sequentially arranged from left to right, the reversing wheel on the leftmost side is arranged on the upper side of the left through groove, the reversing wheel on the rightmost side is arranged on the upper side of the right through groove, and a gap is reserved between the two reversing wheels on the middle position;
the front end face and the rear end face of the box body are respectively fixed with two vertical plates, the two vertical plates on the corresponding sides are arranged left and right, the adjacent sides of the two vertical plates on the corresponding sides are respectively provided with a sinking groove which is arranged up and down, the sinking grooves penetrate through the upper end face and the lower end face of the vertical plates, a balancing weight is arranged between the two vertical plates on the corresponding sides, the end faces of the left end face and the right end face of the balancing weight are respectively fixed with a sliding block, and the sliding blocks are arranged in the sinking grooves on the adjacent sides;
the outer end of the fixed block is arranged at the outer side of the box body, two pull ropes are fixed at the middle part of the upper end of each balancing weight, one pull rope on each balancing weight bypasses two reversing wheels which are positioned at the left side and is fixed with the left fixed block, and the other pull rope on each balancing weight bypasses two reversing wheels which are positioned at the right side and is fixed with the right fixed block.
The front end face and the rear end face of the box body are respectively fixed with a supporting block, the lower end face of each supporting block is fixed with a spring, and the lower end of each spring is fixed on the balancing weight;
the upper end face of the supporting block is provided with a through hole, and the pull rope passes through the through hole.
Two stop blocks are respectively fixed on the front side and the rear side of the upper end face of the flat plate, the two stop blocks on the corresponding sides are placed left and right, and the upper end face of each stop block is inclined inwards.
The lower end face of the abdication groove is provided with a groove, the lower side of the anti-slip pad is arranged in the groove for fixation, and the upper end of the anti-slip pad is arranged outside the groove.
The weights of the two balancing weights are larger than the weight of the flat plate, and the balancing weights enable extrusion force to exist between the flat plate and the paper feeding wheel when the flat plate is contacted; the spring force increased by the corresponding height of the spring is the same as the gravity increased by adding the paper with the corresponding thickness;
when paper is placed on the flat plate, under the cooperation of the balancing weight and the springs, the friction force between two adjacent papers cannot change, so that the friction force between the paper feeding wheel and the papers is larger than that between the anti-slip pad and the papers, and the friction force between the anti-slip pad and the papers is larger than that between the papers.
According to the utility model, through the cooperation of the balancing weight and the spring, the extrusion force between the paper feeding wheel and the paper can be always kept unchanged, and the problem that after the number of the paper is increased, the friction force between two adjacent papers is increased, so that the friction force between the two adjacent papers is larger than the friction force between the anti-slip pad and the paper, and a plurality of papers move leftwards is solved; and the flat plates are horizontally arranged all the time, so that the paper is prevented from being bumped on the anti-slip pad.
Drawings
Fig. 1 is a front view of the present utility model.
Fig. 2 is a front cross-sectional view of the present utility model.
Fig. 3 is a top view of the present utility model.
Fig. 4 is an enlarged view at a of the present utility model.
Fig. 5 is a perspective view of a flat panel of the present utility model.
Detailed Description
The following describes the embodiments of the present utility model in further detail with reference to the accompanying drawings.
As shown in fig. 1 to 5, the utility model comprises a rectangular box body 1 with an opening at the upper end, a yielding groove 2 penetrating through the upper end surface is arranged at the upper end of the left end surface of the box body 1, an anti-slip pad 3 is fixed on the lower end surface of the yielding groove 2, a paper feeding wheel 4 is rotated at the upper end of the left side in the box body 1, and the paper feeding wheel 4 is arranged front and back; the box body 1 is internally provided with a flat plate 5 which moves up and down, the flat plate 5 is always horizontally placed, and the flat plate 5 always has upward moving force;
when the flat plate 5 moves upwards, the upper end surface of the flat plate 5 contacts with the lower side of the paper feeding wheel 4 and always keeps constant extrusion force;
a gap is reserved between the left end of the flat plate 5 and the anti-skid pad 3, and the upper end surface of the flat plate 5 is higher than the anti-skid pad 3.
Two left and right fixed blocks 6 are respectively fixed on the front side and the rear side of the flat plate 5, and a through hole is formed in the upper end face of each fixed block 6;
the front end face and the rear end face of the box body 1 are respectively provided with two through grooves 7 in the up-down direction, the two through grooves 7 on the corresponding sides are arranged left and right, a vertical straight rod 8 is fixed in each through groove 7, each straight rod 8 is arranged in a through hole, the flat plate 5 is kept horizontal through the fixing block 6, and the flat plate 5 can only move up and down.
Four reversing wheels 9 are respectively rotated on the front end face and the rear end face of the box body 1, the four reversing wheels 9 on the corresponding sides are positioned at the same height and are sequentially arranged from left to right, the reversing wheel 9 on the leftmost side is arranged on the upper side of the through groove 7 on the left side, the reversing wheel 9 on the rightmost side is arranged on the upper side of the through groove 7 on the right side, and a gap is reserved between the two reversing wheels 9 on the middle position;
two vertical plates 10 are respectively fixed on the front end surface and the rear end surface of the box body 1, the two vertical plates 10 on the corresponding sides are arranged left and right, a sinking groove which is arranged up and down is respectively arranged on the adjacent sides of the two vertical plates 10 on the corresponding sides, the sinking groove penetrates through the upper end surface and the lower end surface of the vertical plates, a balancing weight 11 is arranged between the two vertical plates 10 on the corresponding sides, sliding blocks 12 are respectively fixed on the end surfaces of the left end and the right end of the balancing weight 11, and the sliding blocks 12 are arranged in the sinking grooves on the adjacent sides;
the outer end of the fixed block 6 is arranged at the outer side of the box body 1, two pull ropes 13 are fixed at the middle part of the upper end of each balancing weight 11, one pull rope 13 on each balancing weight 11 bypasses the two reversing wheels 9 on the left side corresponding to the two reversing wheels and the fixed block 6 on the left side, and the other pull rope 13 on each balancing weight 11 bypasses the two reversing wheels 9 on the right side corresponding to the two reversing wheels and the fixed block 6 on the right side.
The front end face and the rear end face of the box body 1 are respectively fixed with a supporting block 14, the lower end face of the supporting block 14 is fixed with a spring, and the lower end of the spring is fixed on the balancing weight 11;
when the flat plate 5 is in contact with the paper feeding wheel 4, the spring is in natural elongation, and when the flat plate 5 moves downwards, the balancing weight 11 moves upwards, and the spring is gradually compressed;
the upper end face of the supporting block 14 is provided with a through hole, and the pull rope 13 passes through the through hole.
Two stop blocks 15 are respectively fixed on the front side and the rear side of the upper end face of the flat plate 5, the two stop blocks 15 on the corresponding sides are placed left and right, and the upper end face of each stop block 15 is inclined inwards.
The lower end face of the abdication groove 2 is provided with a groove, the lower side of the anti-slip pad 3 is arranged in the groove for fixing, and the upper end of the anti-slip pad 3 is arranged outside the groove.
The weight of the two balancing weights 11 is larger than that of the flat plate 5, and the balancing weights 11 enable extrusion force to exist between the flat plate 5 and the paper feeding wheel 4 when the flat plate 5 is contacted.
The spring force increased by the corresponding height of the spring is the same as the gravity increased by adding the paper with the corresponding thickness;
when paper is placed on the flat plate 5, under the cooperation of the balancing weight 11 and the springs, the friction force between two adjacent papers cannot change, so that the friction force between the paper feeding wheel 4 and the papers is larger than the friction force between the anti-slip pad 3 and the papers, and the friction force between the anti-slip pad 3 and the papers is larger than the friction force between the papers.
Before the utility model is used, the balancing weight 11 moves the flat plate 5 upwards to contact with the paper feeding wheel 4 through the pull rope 13, and the spring is in natural extension;
when the paper feeding device is used, the flat plate 5 is manually pressed down, the balancing weight 11 is moved upwards, the springs are in a compressed state, and then paper is placed on the flat plate 5, and as the stop blocks 15 are arranged on the front side and the rear side and the upper end faces are inclined inwards, the paper can be inwards closed, and the paper is prevented from deflecting;
when the paper is put in, the hands are separated from the flat plate 5, the flat plate 5 moves upwards under the action of the balancing weights 11 and the springs until the uppermost paper contacts with the lower side of the paper feeding wheel 4, and the upward movement is stopped, at the moment, because the elastic force provided by the springs is equal to the gravity provided by the paper, the weights of the two balancing weights 11 are greater than the weight of the flat plate 5, the extrusion force between the paper and the paper feeding wheel 4 is not changed, and the constant friction force between the adjacent paper can be ensured; the problem that after the number of the paper sheets is increased, the friction force between two adjacent paper sheets is increased is prevented;
when the paper feeding wheel 4 is started, the paper feeding wheel 4 can drive paper to move leftwards, and as the flat plate 5 is always in a horizontal state, the paper is always in the horizontal state, so that the height difference between the uppermost paper and the anti-slip pad 3 is always unchanged, the constant friction force between the paper and the anti-slip pad 3 is ensured, and the problem that the friction force is changed due to the change of the height between the paper and the anti-slip pad 3, and a plurality of papers positioned on the upper side move leftwards at the same time is solved.
1. According to the utility model, the weight of the two balancing weights 11 is larger than that of the flat plate 5, the elasticity provided by the springs is equal to the gravity provided by the paper, so that not only can the extrusion force between the flat plate 5 and the paper feeding wheel 4 be ensured, but also the extrusion force between the paper feeding wheel 4 and the paper can be ensured not to change along with the increase of the paper, and further the problem that after the number of the paper is increased, the friction force between two adjacent papers is increased, so that the friction force between the two adjacent papers is larger than that between the anti-slip pad 3 and the paper, and a plurality of papers move leftwards is solved;
the flat plate 5 is always arranged horizontally, so that the paper is prevented from being bumped on the anti-slip pad;
meanwhile, the constant friction force between the paper and the anti-slip pad 3 is ensured, and the problem that the friction force is changed due to the change of the height between the paper and the anti-slip pad 3, so that a plurality of paper sheets positioned on the upper side move leftwards at the same time is prevented.
2. The stop blocks 15 are arranged on the front side and the rear side of the flat plate 5, and the upper end face is inclined inwards, so that paper can be inwards closed, and the paper is prevented from deflecting.
Claims (7)
1. The paper feeding device of the copying machine is characterized by comprising a rectangular box body (1) with an opening at the upper end, wherein an abdication groove (2) penetrating through the upper end face is formed in the upper end of the left end face of the box body (1), an anti-slip pad (3) is fixed on the lower end face of the abdication groove (2), a paper feeding wheel (4) is rotated at the upper end of the left side in the box body (1), and the paper feeding wheel (4) is arranged front and back; the box body (1) is internally provided with a flat plate (5) which moves up and down, the flat plate (5) is always horizontally placed, and the flat plate (5) always has upward moving force;
when the flat plate (5) moves upwards, the upper end surface of the flat plate (5) is in contact with the lower side of the paper feeding wheel (4) and always keeps constant extrusion force;
a gap is arranged between the left end of the flat plate (5) and the anti-skid pad (3), and the upper end surface of the flat plate (5) is higher than the anti-skid pad (3).
2. The paper feeding device of the copying machine according to claim 1, wherein two fixing blocks (6) which are arranged left and right are respectively fixed on the front side and the rear side of the flat plate (5), and a through hole is formed in the upper end face of each fixing block (6);
the box body (1) front and back terminal surface each begin to establish two logical grooves (7) of upper and lower direction, two logical grooves (7) of corresponding side are arranged about, every logical inslot is fixed with a vertical straight-bar (8) of placing, every straight-bar (8) are arranged in a through-hole, straight-bar (8) make dull and stereotyped (5) keep the level through fixed block (6), and dull and stereotyped (5) can only reciprocate.
3. The paper feeding device of the copying machine according to claim 2, wherein the front end face and the rear end face of the box body (1) are respectively provided with four reversing wheels (9), the four reversing wheels (9) on the corresponding sides are positioned at the same height and are sequentially arranged from left to right, the reversing wheel (9) on the leftmost side is arranged on the upper side of the left through groove (7), the reversing wheel (9) on the rightmost side is arranged on the upper side of the right through groove (7), and a gap is reserved between the two reversing wheels (9) on the middle position;
two vertical plates (10) are respectively fixed on the front end face and the rear end face of the box body (1), the two vertical plates (10) on the corresponding sides are arranged left and right, a sinking groove which is arranged up and down is respectively formed on the adjacent sides of the two vertical plates (10) on the corresponding sides, the sinking groove penetrates through the upper end face and the lower end face of the vertical plates, a balancing weight (11) is arranged between the two vertical plates (10) on the corresponding sides, sliding blocks (12) are respectively fixed on the end faces of the left end face and the right end face of the balancing weight (11), and the sliding blocks (12) are arranged in the sinking grooves on the adjacent sides;
the outer end of the fixed block (6) is arranged on the outer side of the box body (1), two pull ropes (13) are fixed in the middle of the upper end of each balancing weight (11), one pull rope (13) on each balancing weight (11) bypasses two reversing wheels (9) corresponding to the left side and is fixed with the fixed block (6) on the left side, and the other pull rope (13) on each balancing weight (11) bypasses two reversing wheels (9) corresponding to the right side and is fixed with the fixed block (6) on the right side.
4. A paper feeding device for a copier according to claim 3, wherein, a supporting block (14) is fixed on each of the front and rear end surfaces of the case (1), a spring is fixed on the lower end surface of the supporting block (14), and the lower end of the spring is fixed on the balancing weight (11);
the upper end face of the supporting block (14) is provided with a through hole, and the pull rope (13) passes through the through hole.
5. The paper feeding device of a copying machine according to claim 1, wherein two stoppers (15) are respectively fixed on the front and rear sides of the upper end surface of the flat plate (5), the two stoppers (15) on the corresponding sides are placed on the left and right sides, and the upper end surface of each stopper (15) is inclined inward.
6. The paper feeding device of the copying machine according to claim 1, wherein the lower end surface of the abdication groove (2) is provided with a groove, the lower side of the anti-slip pad (3) is arranged in the groove for fixation, and the upper end of the anti-slip pad (3) is arranged outside the groove.
7. The paper feeding device of a copying machine according to claim 4, wherein the weight of the two balancing weights (11) is larger than that of the flat plate (5), and when the balancing weights (11) contact the flat plate (5) with the paper feeding wheel (4), a pressing force exists between the flat plate (5) and the paper feeding wheel (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321597149.3U CN220055706U (en) | 2023-06-21 | 2023-06-21 | Paper feeding device of duplicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321597149.3U CN220055706U (en) | 2023-06-21 | 2023-06-21 | Paper feeding device of duplicator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220055706U true CN220055706U (en) | 2023-11-21 |
Family
ID=88760508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321597149.3U Active CN220055706U (en) | 2023-06-21 | 2023-06-21 | Paper feeding device of duplicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220055706U (en) |
-
2023
- 2023-06-21 CN CN202321597149.3U patent/CN220055706U/en active Active
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