CN102583075B - Paper feeding control device and imaging equipment - Google Patents
Paper feeding control device and imaging equipment Download PDFInfo
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- CN102583075B CN102583075B CN201210027764.0A CN201210027764A CN102583075B CN 102583075 B CN102583075 B CN 102583075B CN 201210027764 A CN201210027764 A CN 201210027764A CN 102583075 B CN102583075 B CN 102583075B
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Abstract
The invention provides a paper feeding control device and imaging equipment. The paper feeding control device comprises a driving gear, a paper feeding roll gear with tooth portion, a clutch piece and a control component, wherein the clutch piece is arranged on the end face of the paper feeding roll gear and radially slidably arranged along the paper feeding roll gear and is provided with a meshing portion facing the end of the driving gear, the meshing portion is in transmission with the driving gear, and the control component is used for controlling the clutch piece to slide along the paper feeding roll gear radially and meshes with or separates from the driving gear. During working, the paper feeding roll gear is stable in stress and requires low driving force, so that the paper feeding control device is stable in running, low in energy consumption and noise.
Description
Technical field
The present invention relates to physical construction technology, relate in particular to a kind of paper feeding control setup and image forming apparatus.
Background technology
At present, the image forming apparatus such as chopping machine, duplicator, facsimile apparatus, all-in-one multifunctional machine is widely used in people's live and work.
In above-mentioned image forming apparatus, the supply of the recording mediums such as paper adopts intermittent mode to transmit conventionally, control one transmits of feed roll, and the transmission of adjacent two recording mediums has certain time interval.
For realize one time one separation and transmit recording medium, prior art has adopted paper feeding control setup to control the step rotation of paper feed rollers in paper feed mechanism.Typical paper feeding control setup as shown in Figure 1, comprises driven wheel 300, gear spring 103 and the magnetic clutch 104 of ratchet 101, feed roll gear 200, feed roll.Wherein, driven wheel 300 is connected with engine installation, and meshes with feed roll gear 200, for rotating under the driving of engine installation, and then drives feed roll gear 200 to rotate; Feed roll gear 200, for being connected with paper feed rollers 105 at paper feed mechanism, drives paper feed rollers 105 to rotate to carry out paper supply; The gear teeth of feed roll gear 200 comprise one section of hypodontia part 201, driven wheel 300 cannot engaged transmission in hypodontia part 201, so, by ratchet 101, gear spring 103 and magnetic clutch 104, coordinate and control the discontinuous rotation of feed roll gears 200 when the hypodontia part 201 corresponding driven wheel 300, thereby realize discontinuous driving paper feed rollers 105, so that batch (-type) paper supply.
As shown in Figure 1, ratchet 101 is fixedly connected on a side end face of feed roll gear 200 structure that this paper feeding control setup is realized discontinuous driving, ratchet 101 and feed roll gear 200 coaxial rotation; Magnetic clutch 104 comprises clutch main body 106, clutch spring 107 and grab 108.One end of clutch spring 107 is connected with the first end of grab 108, the other end of clutch spring 107 is fixed on clutch main body 106, the second end of grab 108 engages with the ratchet of ratchet 101, when magnetic clutch 104 powers up, absorption grab 108 moves to depart from spacing to ratchet, when magnetic clutch 104 power-off, grab 108 departs from absorption and resets under the effect of clutch spring 107; One end of gear spring 103 is fixed on the end face of ratchet 101, and the other end is fixed in the main body of image forming apparatus, when departing from grabs 108 spacing at ratchet 101, with elasticity, drives ratchet 101 and feed roll gear 200 to rotate.
As shown in Figure 1, under initial condition, the hypodontia part 201 of feed roll gear 200 is relative with driven wheel 300, and the ratchet that grab 108 hooks ratchet 101 carries out spacing, and feed roll gear 200 is in the lock state, and now gear spring 103 is in extended state.
As shown in Figure 2, when paper feeding, magnetic clutch 104 work, grab 108 is by magnetic clutch 104 main body adhesives, the locking of releasing to ratchet 101, now ratchet 101 and feed roll gear 200 can rotate freely, and under the effect of gear spring 103, feed roll gear 200 starts along paper feeding direction rotation.When having rotated through hypodontia part 201 by elastic force, feed roll gear 200 and driven wheel 300 engagements rotate under the drive of driven wheel 300, realize paper feeding.
Magnetic clutch 104 is controlled for crawl, and when grab 108 is left in ratchet 101 rotations, magnetic clutch 104 is power-off, and grab 108 leaves magnetic clutch main body 106.When ratchet 101 rotates a circle together with feed roll gear 200, grab 108 hooks ratchet 101 again, and feed roll gear 200 is in the lock state, and returns to the initial condition of Fig. 1, now completes first paper feeding operation.Magnetic clutch 104 waits for that next signal carries out paper feeding action.
The paper feeding control setup of above paper feed mechanism, can actv. realize one time one separation and transmit recording medium.But, because gear spring one end is fixed on the end face of ratchet, therefore in paper feeding process, gear spring can rotate together and constantly be stretched along with ratchet, the life-span of gear spring can reduce, and now driven wheel needs larger propulsive effort to overcome the pulling force of gear spring, has so just increased the driving power of image forming apparatus, increase cost, also can produce larger noise simultaneously.And in feed roll gear rotation process, the pulling force of gear spring is to change always, so this actuating device there will be unsettled situation in work engineering.After repeatedly using, there is the situation that elasticity reduces in gear spring particularly possibly, to such an extent as to reduce the accuracy that paper feed mechanism picks up paper.For example, when grab 108 departs from ratchet 101, because gear spring 103 elasticity reduce, it can not drive 200 rotations of feed roll gear to cause paper feeding failure, finally causes image forming apparatus cisco unity malfunction, to user, brings great inconvenience.
Summary of the invention
The embodiment of the present invention provides a kind of paper feeding control setup and image forming apparatus, to improve the working stability of paper feeding control setup.
The embodiment of the present invention provides a kind of paper feeding control setup, comprises driven wheel and with hypodontia feed roll gear partly, also comprises:
Clutch block, described clutch block is arranged on the end face of described feed roll gear and along the setting that radially slides of described feed roll gear, described clutch block is provided with for the engaging piece with driven wheel transmission towards the end of driven wheel;
Control assembly, described control assembly is for controlling clutch block along the radially sliding of described feed roll gear, with driven wheel engagement or separated.
The embodiment of the present invention provides a kind of image forming apparatus, at least comprises feed roll, wherein also comprises the paper feeding control setup that any embodiment of the present invention provides, and the feed roll gear in described paper feeding control setup is connected with described feed roll.
Paper feeding control setup provided by the present invention and image forming apparatus, can effectively realize one time one separation and provide recording medium and intermittence provides recording medium.Meanwhile, in the course of the work, owing to controlling clutch block along the radially sliding of feed roll gear, so feed roll strength of gear is stable, required propulsive effort is little for this paper feeding control setup, so this paper feeding control setup is stable, low energy consumption, low noise.In addition, this paper feeding control setup is simple in structure, easy installation and removal, and actv. has been saved productive costs.
Accompanying drawing explanation
Fig. 1 be in prior art a kind of paper feeding control setup at the structural representation of lock-out state;
Fig. 2 be in prior art a kind of paper feeding control setup at the structural representation of released state;
Fig. 3 is the structural representation of the applicable typical image forming device of paper feeding control setup of the present invention;
The structural representation of the paper feeding control setup that Fig. 4 provides for the embodiment of the present invention two;
The structural representation of feed roll gear in the paper feeding control setup that Fig. 5 provides for the embodiment of the present invention two;
The structural representation of clutch block 400 in the paper feeding control setup that Fig. 6 provides for the embodiment of the present invention two;
The end face structure schematic diagram of the paper feeding control setup that Fig. 7 provides for the embodiment of the present invention two;
The structure schematic diagram of the paper feeding control setup that Fig. 8 provides for the embodiment of the present invention two;
The structural representation of resetting block 702 in the paper feeding control setup that Fig. 9 provides for the embodiment of the present invention two;
The structural representation of control setup in the paper feeding control setup that Figure 10 provides for the embodiment of the present invention two;
The structural representation of the paper feeding control setup that Figure 11 provides for the embodiment of the present invention two in released state;
The structural representation of the paper feeding control setup that Figure 12 provides for the embodiment of the present invention three;
The structural representation of the paper feeding control setup that Figure 13 provides for the embodiment of the present invention four;
The structural representation of the paper feeding control setup that Figure 14-16 provide for the embodiment of the present invention five;
The structural representation of the paper feeding control setup that Figure 17 and 18 provides for the embodiment of the present invention six;
The structural representation of the paper feeding control setup that Figure 19 and 20 provides for the embodiment of the present invention seven.
101: ratchet; 102: feed roll; 103: gear spring;
104: magnetic clutch; 105: paper feed rollers; 106: clutch main body;
107: clutch spring; 108: grab; 109: shell;
110: image formation processing unit; 111: laser scanner;
112: fixation unit; 113: paper feeding disk; 114: transfer roller;
115: charging roller; 116: photosensitive drums; 117: developer roll;
118: transfer roll; 119: eduction gear; 120: discharge dish;
200: feed roll gear; 201: hypodontia part; 202: have toothed portion;
203: S. A.; 204: limit assembly; 205: slide rail projection pair;
206: the five projections;
300: driven wheel; 301: gear body; 302: linkage gear;
303: pointed tooth; 304: friction lining;
400: clutch block; 401: engaging piece; 402: through hole;
403: middle part slide block; 404: end face slide block; 405: lateral protrusion;
406: fixed mount; 407: the first end plates; 408: the second end plates;
409: the four projections; 410: support spring; 411: stretching bar;
501: fixed end; 502: the first projections;
600: elastic parts; 601:U shape spring;
701: the second projections; 702: resetting block; 703: cam chute;
703a: chute entrance; 703b: chute outlet;
801: the first control handles; 802; Pedestal; 803: hold-down arm;
804: position limit arm; 805: relay; 806: spacing hole;
807: claw; 808: the three projections; 809: control handle spring;
810: the six projections; 811: the second control handles.
The specific embodiment
For making object, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-
The embodiment of the present invention one provides a kind of paper feeding control setup, comprises driven wheel and with hypodontia feed roll gear partly, also comprises clutch block and control assembly.Wherein, described clutch block is arranged on the end face of described feed roll gear and along the setting that radially slides of described feed roll gear, described clutch block is provided with for the engaging piece with driven wheel transmission towards the end of driven wheel; Control assembly, described control assembly is for controlling clutch block along the radially sliding of described feed roll gear, with driven wheel engagement or separated.
The paper feeding control setup that the present embodiment provides, owing to controlling clutch block by control assembly along the radially sliding of feed roll gear, so can make the motion stabilization of clutch block, the application of force is balanced, improves the stability of paper feeding control setup work.The form of this engaging piece can be multiple, such as involute gear tooth, pointed tooth or friction lining etc.
Control assembly in above-described embodiment, can specifically consist of drive part, reset part, control part and elastic part.Wherein:
Drive part is for applying to clutch block the power of supporting along supporting direction, wherein, support direction and be clutch block along feed roll gear radially and away from the direction of feed roll gear center.It will be appreciated by those skilled in the art that, support direction for radially identical with feed roll gear roughly, be not limited to strictly identically, also can have certain low-angle, as long as can make by the slip of clutch block mate fill up the tooth mesh transmission on hypodontia part and driven wheel.
Reset is partly for applying reset force along reset direction to clutch block, and wherein, reset direction is for driving clutch block along the radially direction of also close feed roll gear center of feed roll gear.The direction that resets typically with support opposite direction.
Elastic part is arranged in drive part and supports the power of supporting of direction for applying edge, or is arranged in reset part for applying along the reset force of reset direction.Preferably be provided with the drive part of elastic part or reset and partly can rotate with feed roll gear, thereby guarantee the draw direction of elastic part all the time along feed roll gear radially, the rotation with feed roll gear does not change, can guarantee the stability of the application of force like this, and the stability of elastomeric element elastic force.
Control part at least comprises controller and control handle, and controller drives control handle action.When elastic part is arranged on, apply while supporting power in drive part, described control part is for applying or remove the restriction to the described power of supporting.When elastomeric element is arranged on while applying reset force in reset part, described control part is for applying or remove the restriction to described reset force.
In the present embodiment, clutch block specifically assigns to contact with driven wheel for filling up the toothless portion) of feed roll gear, makes driven wheel can drive feed roll gear to rotate; Can depart from driven wheel and contact, expose hypodontia part simultaneously.And when clutch block contacts with driven wheel, when can disengage, by control assembly, implemented to control.
Elastic part is arranged in drive part, for directly forming or the auxiliary power of supporting that forms, control part externally drives control handle action under the triggering of signal, and the action of control handle can apply or remove the restriction to elastic part, to switch the operation that radially slides of clutch block.
The above-mentioned matching relationship that it will be understood by those skilled in the art that clutch block, drive part, reset part, elastic part and control part can meet the demands by different structures and Position Design.To explain by preferred embodiment below.
The technical scheme of the present embodiment, arranges the power of supporting and the reset force that drive clutch block, all, roughly along radially the applying of feed roll gear, can in feed roll gear rotation process, to it, not exert an influence, and has guaranteed that feed roll gear rotates at the uniform velocity stable.And elastic part can constantly not be stretched because of the rotation of feed roll gear, can guarantee the stable of its performance, can not cause paper feeding failure, extended its service life simultaneously.
On the basis of above-described embodiment, in paper feeding control setup, also limit assembly can be further set, limit assembly is fixedly installed on the end face of feed roll gear; Control assembly, for contacting or depart from the side of limit assembly, is realized and is applied or remove spacing to the rotation of feed roll gear.Can be specifically that control handle in control assembly moves to contact or depart from the side of limit assembly, realize feed roll gear is rotated and applies spacing or remove spacing.
Technique scheme is by limit assembly is set, and by the unified action of control assembly, controlled equally, can make the rotation of feed roll gear and the sliding extension synchronous coordination of clutch block, increased the stability that device moves.
For clear structure and the working process of introducing paper feeding control setup, first simple introduction is herein suitable for the structure of the typical image forming device of paper feeding control setup of the present invention.
As shown in Figure 3, this image forming apparatus comprises shell 109, paper feeding disk 113, image formation processing unit 110, laser scanner 111, fixation unit 112 and eduction gear 119.It is as follows that this image forms basic equipment principle of work: a plurality of recording medium P that are stacked on paper feeding disk 113 are transported to image formation processing unit 110 by feed roll 102 and transfer roller 114.Image formation processing unit 110 is image formation units of image forming apparatus, specifically comprises charging roller 115, photosensitive drums 116, developer roll 117 and transfer roll 118.116 chargings of 115 pairs of photosensitive drums of charging roller; Laser scanner 111 on charged photosensitive drums 116, makes photosensitive drums 116 surfaces form latent image the Ear Mucosa Treated by He Ne Laser Irradiation with graphicinformation; Developer roll 117 is transferred to carbon dust in photosensitive drums 116, the lip-deep latent image of photosensitive drums 116 is developed and form carbon dust image; Transfer roll 118 is transferred to the carbon dust image in photosensitive drums 116 on recording medium P.After transfer printing, recording medium P is transported to fixation unit 112, forms firm carbon dust image by fixation unit 112 on recording medium P.The recording medium P of photographic fixing image is discharged from device 119 and is expelled on discharge dish 120.
In image forming apparatus, the paper feeding of feed roll 102 operation is driven by paper feeding control setup, specifically by the rotation of feed roll gear drive feed roll.When image forming apparatus needs paper supply, can send actuation signal to paper feeding control setup, trigger the operation that paper feeding control setup is carried out a paper supply, then paper feeding control setup is waited for actuation signal next time, repeatedly carries out.
Below by preferred embodiment, specifically introduce structure and the paper supply operation of paper feeding control setup in embodiment mono-.
Embodiment bis-
The structural representation of the paper feeding control setup that Fig. 4 provides for the embodiment of the present invention two, the present embodiment can be take above-described embodiment as basis, and has provided a kind of preferred compositions implementation of control assembly.
The paper feeding control setup of the present embodiment comprises feed roll gear 200 and driven wheel 300.Feed roll gear 200 can be described as again hypodontia gear, as shown in Figure 4 and Figure 5, includes toothed portion 202 and hypodontia part 201 on it.Feed roll gear 200 is connected with feed roll 102 by paper feed rollers 105, to drive its rotation.
This paper feeding control setup comprises clutch block and control assembly, and this control assembly specifically comprises that the first drive part, first resets partly and the first control part.The first elastic part is arranged among the first drive part.Wherein:
As shown in Fig. 4 and 6, clutch block 400 is arranged on the end face of feed roll gear 200 1 sides and along the setting that radially slides of feed roll gear 200, clutch block 400 is provided with for the engaging piece 401 with driven wheel 300 Contact Transmission towards the end of driven wheel 300.The implementation that clutch block 400 radially slides along feed roll gear 200 can have multiple, as chute slide rail form, in the present embodiment, can be on the end face of feed roll gear 200, to be formed with through hole 402, as shown in Fig. 5 and Fig. 7, clutch block 400 is chimeric and be slidably arranged in through hole 402, so that along the setting that radially slides of feed roll gear 200.
As shown in Figure 5 and Figure 6, the first end of the first drive part is fixedly connected with feed roll gear, the second end of the first drive part is fixedly connected with clutch block 400, between the first end of the first drive part and the second end, be provided with the first elastic part, for applying to clutch block the power of supporting along supporting direction.In the present embodiment, the first drive part specifically comprises fixed end 501 and the first projection 502.Fixed end 501, as the first end of the first drive part, is fixedly installed on the S. A. 203 of feed roll gear 200; The first projection 502, as the second end of the first drive part, is fixedly installed on the side of clutch block 400.
Elastic parts 600 is as the first elastic part, be arranged in the first drive part for applying along the power of supporting of supporting direction, in the present embodiment, as shown in Figure 7, elastic parts 600 fixed clamp are between the first projection 502 and fixed end 501, for clutch block 400 being applied to the power of supporting along supporting direction.The concrete structure of elastic parts 600 is not limit, as long as can between apply elastic force, as extension spring etc.In the present embodiment, fixed end 501 is for being arranged on feed roll gear 200 S. A. 203 external peripheral surfaces and towards a guide pillar of clutch block 400, and the first projection 502 is for being arranged on clutch block 400 and towards another guide pillar of fixed end 501.Extension spring 600 is set between two guide pillars.Two guide pillars can be set equal along the height of feed roll gear 200 axial directions, and adopt interference fit with extension spring, thereby guarantee that extension spring can not depart from from guide pillar easily.Extension spring, always in compressed state, applies elastic force to two guide pillars.Elastic parts 600 integral body can be rotated with feed roll gear 200, in feed roll gear 200 rotation processes, can constantly do not stretched, guaranteed the stability of its performance, can not cause paper feeding failure, thereby guaranteed the stability of image forming apparatus performance, also extended the service life of elastic parts 600 simultaneously.
The first reset portion is divided with respect to the movable setting of feed roll gear, with feed roll gear, does not rotate, and first resets part for applying reset force to clutch block 400 along reset direction.In the present embodiment, as shown in Fig. 6 and Fig. 9, first resets partly specifically comprises the second projection 701 and resetting block 702.As shown in Figure 6, the second projection 701, as the first end of the first reset part, is fixedly installed on the side that deviates from the first projection 502 on clutch block 400, and through through hole 402, as shown in Figure 8; As shown in Fig. 4 and Fig. 9, resetting block 702 is as the second end of the first reset part, be fixedly installed on a side that deviates from clutch block 400, and on resetting block 702, be provided with cam chute 703, for accommodating the second projection 701, in clutch block 400 rotation processes, it is slid into going-back position from progressive position, described progressive position be clutch block 400 away from the position at feed roll gear 200 centers, described going-back position is that clutch block 400 is near the position of feed roll gear center.The first control part at least comprises that the first controller and the first control handle 801, the first controllers drive the first control handle 801 actions, to apply or to remove supporting the restriction of power.In the present embodiment, as shown in Fig. 4 and Figure 10, the first control part also comprises the support that pedestal 802, hold-down arm 803 and position limit arm 804 form, and support can be fixed on image forming apparatus.The first controller is specifically relay 805, can be arranged on the pedestal 802 of support.The middle part of the first control handle 801 is supported on hold-down arm 803, the first end of the first control handle 801 is plugged in the spacing hole 806 of position limit arm 804, the second end of the first control handle 801 is provided with between the second end of claw 807 and the 3rd projection 808, the first control handles 801 and pedestal 802 and is connected with control handle spring 809.Relay 805 is arranged on pedestal 802, is being parallel to support in direction and the plane perpendicular to feed roll gear 200 end faces and swings, as shown in Figure 4 for controlling the first control handle 801 around hold-down arm 803.Claw 807 axially stretches out along feed roll gear 200, for departing from or contact clutch block 400 when the first control handle 801 swings, to remove or to apply supporting the restriction of power.
In the present embodiment, as shown in Figure 5, be also provided with limit assembly 204 on paper feeding control setup, limit assembly 204 is fixedly installed on the end face of feed roll gear 200.The first control handle 801 actions, so that the 3rd projection 808 contacts or depart from the side of limit assembly 204, realize feed roll gear 200 are rotated and applies spacing or remove spacing.Can be specifically that the 3rd projection 808 on the first control handle 801 is supported spacing with limit assembly 204 along the rotation direction of feed roll gear 200 mutually, the first control handle 801 swings so that the side of the 3rd projection 808 contacts or disengaging limit assembly 204 is realized feed roll gear 200 is rotated and implements spacing or remove spacing.
For forming the slip of limit assembly 204 and stable guiding clutch block 400, in the present embodiment, formed slide rail projection pair, a side that at feed roll gear 200 clutch block 400 is set has formed two projections, two projections are symmetrically distributed in the both sides of through hole 402, along feed roll gear 200, axially there is identical height, be equivalent to form slide rail, thus direction of slip that can supplemental pilot clutch block 400.In addition, slide rail projection centering can also be held concurrently as limit assembly 204 towards the projection of feed roll 102 rotation directions, and its side coordinates to realize spacing that feed roll gear 200 is rotated with the first control handle 801.Preferably as shown in Figure 5, as the projection of limit assembly 204, be stepped, for matching with the 3rd projection 808 shapes on the first control handle 801.
Comprehensive said structure demand, the shape of clutch block 400 and structure as shown in Figure 6, have comprised the middle part slide block 403 with through hole 402 form fit; One side of middle part slide block 403 arranges the second projection 701, opposite side setting and the slide rail projection end face slide block 404 to form fit; On end face slide block 404, also form a lateral protrusion 405, to the first projection 502 is set; End face slide block 404 is the circular-arc surface of mating with S. A. 203 towards one end of feed roll gear 200 S. A.s 203, and the other end forms engaging piece 401.In the present embodiment, engaging piece 401 is several involute gear tooths.
Resetting block 702 is a semi-round tabular body roughly, can be fixedly installed on the main body (not shown) of image forming apparatus.Resetting block 702 is fixed guide parts, is provided with cam chute 703 on it, is used for accommodating the second projection 701, the second projections 701 also along cam chute 703, to move when rotating with feed roll gear 200, thereby realize guiding clutch block 400, radially slides.Cam chute 703 path of motion setting as required, shown in the Fig. 9 of institute, is involute shape in the present embodiment.
The paper feeding control setup working process of the present embodiment is as follows:
As shown in Figure 4, at initial condition, the hypodontia part 201 of feed roll gear 200 is over against driven wheel 300 center, relay 805 power-off of the first control part are not worked, the claw 807 of the first control handle 801 hooks the lateral protrusion 405 of clutch block 400, elastic parts 600 is imposed on to clutch block 400 and support power and limit, clutch block 400 is in going-back position, and elastic parts 600 is in degree of depth compressive state; The 3rd projection 808 of the first control handle 801 sides coordinates with the limit assembly 204 of feed roll gear 200, makes feed roll gear 200 stably remain on initial position.When image forming apparatus power connection, the propulsive effort that driving motor (not shown) produces passes to driven wheel 300 through gear train assembly (not shown), driven wheel 300 starts with constant speed rotation, now the hypodontia part 201 of feed roll gear 200 is over against driven wheel 300, and feed roll gear 200 does not turn.
As shown in figure 11, when paper feeding operation starts, for being enabled in first recording medium P first end that above actuation signal of imaging operation is sent to relay 805, the first control handles 801 by relay 805 adhesives; The first control handle 801 swings around hold-down arm 803, now claw 807 departs from the lateral protrusion 405 of clutch block 400, remove it and clutch block 400 is supported to the restriction of power, clutch block 400 is supported at elastic parts 600 under the effect of power and is moved to progressive position by going-back position, the involute gear tooth of clutch block 400 ends and driven wheel 300 engagements, driven wheel 300 passes to clutch block 400 by propulsive effort.Because the 3rd projection 808 of the first control handle 801 has now departed from the limit assembly 204 of feed roll gear 200, feed roll gear 200 can rotate freely, so feed roll gear 200 starts rotation under the propulsive effort effect of clutch block 400, starts paper feeding operation.
When feed roll gear 200 has rotated through hypodontia part 201, now have toothed portion 202 and driven wheel 300 engagements of feed roll gear 200 are rotated, and continue paper feeding operation.
Slide rail projection on feed roll gear 200 is to having rotated through the 3rd projection 808 positions of the first control handle 801 sides, and before feed roll gear 200 rotates a circle, relay 805 power-off under the effect of control signal, quits work.The first control handle 801 resets under the elastic force effect of control handle spring 809.After feed roll gear 200 rotates to an angle, the second projection 701 on clutch block 400 enters the cam chute 703 of resetting block 702.The second projection 701 moves to the process of chute outlet 703b from chute entrance 703a, and clutch block 400 is moved by the progressive position position of drawing back gradually, and elastic parts 600 is compressed gradually.When the second projection 701 moves to 703 outlet of cam chute, clutch block 400 is in going-back position, and feed roll gear 200 just moves one week, completes the feeding operation of first recording medium P.Now, the limit assembly 204 of feed roll gear 200 coordinates with the side of the first control handle 801 the 3rd projection 808, feed roll gear 200 stops the rotation, first claw 807 of control handle 801 ends and the lateral protrusion 405 of clutch block 400 coordinate, make clutch block 400 remain on going-back position, be that paper feeding control setup restPoses, the relay of the first control part 805 waits for that next signals carry out paper feeding action, realizes the intermittent paper feeding of one time.
Embodiment tri-
The structural representation of the paper feeding control setup that Figure 12 provides for the embodiment of the present invention three, engaging piece 401 in above-described embodiment two is not limited to adopt involute gear tooth, can also adopt pointed tooth 303, as shown in figure 12, driven wheel 300 comprises gear body 301 and linkage gear 302 arranged side by side with gear body 301 and that be fixedly connected with, and linkage gear 302 has pointed tooth 303.The engaging piece 401 of clutch block 400 is pointed tooth, with linkage gear 302 engagement fit.
In the present embodiment, the clutch block 400 with involute gear tooth engaging piece 401 is designed to the clutch block 400 that end has pointed tooth structure engaging piece 401, on driven wheel 300, be correspondingly provided with the linkage gear 302 of pointed tooth 303 structures simultaneously, linkage gear 302 is fixedly linked with engaging gear body 301, as a part for driven wheel 300.The pointed tooth part of clutch block 400 and linkage gear 302 engagements drive, and other of feed roll gear 200 have toothed portion 202 still to drive with 301 engagements of driven wheel body.In working process, the engaging piece 401 of clutch block 400 and linkage gear 302 engagements, drive feed roll gear 200 to rotate, and turns over after hypodontia part 201, and feed roll gear 200 rotates with the involute gear tooth engagement of driven wheel body 301, realizes paper feeding.This implementation principle of work is identical with above-mentioned implementation.Employing pointed tooth structure can effectively reduce the probability of apical tooth, and more effectively pulsation-free engagement.
Embodiment tetra-
The structural representation of the paper feeding control setup that Figure 13 provides for the embodiment of the present invention four, engaging piece 401 in above-described embodiment two is not limited to adopt involute gear tooth, can also adopt friction lining, as shown in figure 13, driven wheel 300 comprises gear body 301 and linkage gear 302 arranged side by side with gear body 301 and that be fixedly connected with, and linkage gear 302 surfaces are friction lining 304.The engaging piece 401 of clutch block 400 is friction lining, with friction lining 304 engagement fit of linkage gear 302, i.e. and mutual frictional fit.
As shown in figure 13, the present embodiment changes the clutch block 400 with involute gear tooth engaging piece 401 into clutch block 400 that end has friction plate structure engaging piece 401, on the linkage gear 302 of driven wheel body, friction lining 304 is set accordingly simultaneously, when the friction lining 304 of clutch block 400 and linkage gear 302 meshes, by friction force, drive feed roll gear 200 to rotate, turn over after hypodontia part 201, feed roll gear 200 rotates with involute gear tooth engagement, realizes paper feeding.This implementation working process is identical with above-mentioned implementation.Adopt friction lining to realize engagement and drive, can avoid apical tooth situation by actv., and can pulsation-free transmission, noise is little, is particularly suitable for the less image forming apparatus of load and uses.
Embodiment five
The structural representation of the paper feeding control setup that Figure 14-16 provide for the embodiment of the present invention five, the present embodiment can be take above-described embodiment one as basis, and the another kind that has provided control assembly preferably coordinates implementation.
The paper feeding control setup of the present embodiment comprises clutch block and control assembly, and control assembly specifically comprises the second drive part, second reset part and the second control part, and the second elastic part is arranged in the second reset part.Wherein:
As shown in Figure 14-16, clutch block 400 is arranged on the end face of feed roll gear 200 1 sides and along the setting that radially slides of feed roll gear 200, clutch block 400 is provided with for the engaging piece 401 with driven wheel 300 Contact Transmission towards the end of driven wheel 300.Engaging piece 401 in the present embodiment is still involute gear tooth.
The second drive part is with respect to the movable setting of feed roll gear, and the second drive part is for applying to clutch block the power of supporting along supporting direction.The second first end that resets part is fixedly installed with respect to feed roll gear 200, the second the second end that resets part is fixedly connected with clutch block, second resets is provided with the second elastic part between first end partly and the second end, for applying reset force to clutch block 400 along reset direction, reset direction is for driving clutch block along the radially direction of also close feed roll gear center of feed roll gear.The second control part at least comprises second controller and the second control handle 811, and second controller drives the second control handle 811 actions, to apply or to remove the restriction to reset force.
In the present embodiment, this second control part specifically comprises fixed mount 406, and second controller is that relay 805, the second control handle 811 two ends are provided with the first end plate 407 and the second end plate 408, the second end plates 408 as the second drive part.The second drive part also comprises the 4th projection 409 being fixedly installed on clutch block 400.
Fixed mount 406 is fixedly installed on image forming apparatus main body (not shown), with feed roll gear 200, does not rotate; The first end plate 407 and the second end plate 408 are separately fixed at the two ends of the second control handle 811.The 4th projection 409 is fixedly installed on clutch block 400.
Relay 805 is arranged in fixed mount 406.Relay 805 comprises a stretching bar 411, one end of stretching bar 411 is fixedly connected with the first end plate 407, to pass through contraction stretching bar 411 at relay 805 attracting states, and drive the second control handle 811 actions by the first end plate 407, realize 408 pairs of clutch blocks 400 of the second end plate and apply the power of supporting and limit the second reset portion simultaneously and divide and apply reset force, along feed roll gear 200, radially to the 4th projection 409, apply the power of supporting; And in relay 805 disengaged positions, discharge the adhesive to the first end plate 407, remove the restriction to reset force.The second control part also can comprise support spring 410.Support spring 410 is set on stretching bar 411, promotes the first end plate 407 drive the second control handle 811 actions to reset at the non-attracting state of relay 805 by spring 410.
The second drive part and the second control part cooperatively interact to form the restriction to reset force, and form the power of supporting.As shown in Figure 14-16, fixed mount 406, relay 805 and the second control handle 811 be radially arranging over against clutch block 400 along feed roll gear 200 all.The first end plate 407 drawn bars 411 of the second control handle 811 are connected with relay 805, and stretching bar 411 also can play the effect of supporting the second control handle 811.Operation make the to stretch bar 411 that powers up of relay 805 shrinks, and by the first end plate 407, drives the second control handles 811 to advance, and now support spring 410 is compressed; The power operation of relay 805 makes the first end plate 407 under the effect of support spring 410, drive the second control handle 811 fallback recoveries to going-back position.In this process, the first end plate 407 drives the second control handles 811 along feed roll gear 200 crank motion radially.And then with the second end plate 408 of the second control handle 811, support the 4th projection 409 of clutch block 400, drive clutch block 400 to move reciprocatingly.Be appreciated that, the first end plate 407 and the second end plate 408 are not limited to mutual vertical shown in the present embodiment, be positioned at the not platy structure of ipsilateral of the second control handle 811, can also be other shapes or position, and fixed mount 406 and relay 805 also can be inverted, as long as can realize the second control handle 811 along feed roll gear 200 crank motion radially.
In the present embodiment, the second elastic part is arranged in the second reset part for applying along the reset force of reset direction.Specifically can adopt the S. A. 203 of feed roll gear 200 as the first end of the second reset part, it is fixedly installed with respect to feed roll gear 200, and the second the second end that resets part is the fixed projection on clutch block 400.The second elastic part is U-shaped spring 601, fixed cover is located on the S. A. 203 of feed roll gear 200, and the end of U-shaped spring 601 is fixedly connected with the fixed projection of clutch block 400, for applying reset force to clutch block 400, drive clutch block 400 move and depart from and the contacting of driven wheel 300 along reset direction.The second elastic part integral body can constantly not stretched with 200 rotations of feed roll gear in feed roll gear 200 rotation processes, has guaranteed the stability of its performance, can not cause paper feeding failure, thereby has guaranteed the stability of image forming apparatus performance.
For the reliable rotation that limits feed roll gear 200, in the present embodiment, also comprise limit assembly, limit assembly is fixedly installed on the end face of feed roll gear 200; The second control handle 811 moves to contact or depart from the side of limit assembly, realizes feed roll gear 200 is rotated and applies spacing or remove spacing.
Concrete, the present embodiment is provided with slide rail projection to 205 on the end face of feed roll gear 200, for clamping and guide the direction of slip of clutch block 400, and specifically can be by slide rail projection to 205 both sides that are symmetrically distributed in hypodontia part 201.Limit assembly is the 5th projection 206 being fixedly installed on the end face of feed roll gear 200, can along feed roll gear 200 radially with respect to slide rail projection to 205 settings.Position corresponding to the 5th projection 206 on the second control handle 811 is provided with the 6th projection 810, for the side of contact when the 6th projection 810 moves radially along feed roll gear 200 with the second control handle 811 or disengaging the 5th projection 206, realize the spacing of feed roll gear 200 rotations or remove spacing.
Slide rail projection can coordinate to avoid to interfere with the 6th projection 810 by relative position to the 205 and the 5th projection 206.For example, the certain distance that upwards staggers in the footpath of feed roll gear 200.Or, in the present embodiment, design slide rail projection and 205 height is less than to the height of the 5th projection 206, the second end plate 408 and the 6th projection 810 can leave certain interval to 205 pairs with slide rail projection and avoid interference on feed roll gear 200 is axial, and the 6th projection 810 can coordinate spacing with the 5th projection 206 simultaneously.
The paper feeding control setup working process of the present embodiment is as follows:
At initial condition, the hypodontia part 201 of feed roll gear 200 is over against driven wheel 300 center, and relay 805 is not worked, the second control handle 811 under the effect of support spring 410 elastic forces in the position away from driven wheel 300 centers, i.e. going-back position.Clutch block 400 under the restriction of the second control handle 811 second end plates 408 also in going-back position.Feed roll gear 200 is subject to stopping of the second control handle 811 the 6th projection 810 because of its 5th projection 206, non-rotatable.When image forming apparatus power connection, the propulsive effort that driving motor (not shown) produces passes to driven wheel 300 through gear train assembly (not shown), and driven wheel 300 starts with constant speed rotation, and now feed roll gear 200 does not turn.
When paper feeding operation starts, for being enabled in the actuation signal of the upper imaging operation of first recording medium P, be sent to relay 805, relay 805 is activated, stretching bar 411 retractions.Because stretching bar 411 is fixedly connected with the first end plate 407 of the second control handle 811, therefore the second control handle 811 advances under the effect of stretching bar 411, and, towards driven wheel 300 direction motions, support spring 410 is in compressive state.Now, due to the advancing of the second control handle 811, the 6th projection 810 departs from feed roll gear 200 the 5th projections 206, and feed roll gear 200 can rotate freely.Clutch block 400 is towards driven wheel 300 motions under the promotion of the second control handle 811, and clutch block 400 front end involute gear tooths and driven wheel 300 engagements are rotated, and feed roll gear 200 starts rotation under clutch block 400 drives, and starts paper feeding operation.Now U-shaped spring 601 is in extended state.When feed roll gear 200 has rotated through hypodontia part 201, the second end plate 408 of the second control handle 811 departs from the 4th projection 409, clutch block 400 resets under the elastic force effect of U-shaped spring 601, in going-back position, now have toothed portion 202 and driven wheel 300 engagements of feed roll gear 200 are rotated, and continue paper feeding operation.
The second control handle 811 second end plates 408 depart from after the 4th projection 409, before feed roll gear 200 rotates a circle, relay 805 power-off under the effect of control signal, quits work, the second control handle 811 resets under the elastic force effect of support spring 410, in going-back position.
When feed roll gear 200 rotates a circle, under the stopping of the 5th projection 206 the 6th projection 810 on the second control handle 811 on feed roll gear 200, stop the rotation, complete the feeding operation of first recording medium P.Now, paper feeding control setup restPoses, and relay 805 waits for that next signal carries out paper feeding action.
Embodiment six
The structural representation of the paper feeding control setup that Figure 17 and 18 provides for the embodiment of the present invention six, the difference of the present embodiment and above-described embodiment five is, the engaging piece of clutch block 400 401 is replaced with to pointed tooth with involute gear tooth.
Similar with embodiment tri-, driven wheel 300 comprises gear body 301 and linkage gear 302; Linkage gear 302 is fixedly connected with gear body 301; Linkage gear 302 has pointed tooth 303 structures, with the pointed tooth engagement on clutch block 400.
The implementation of the present embodiment changes the clutch block 400 with involute gear tooth into clutch block 400 that end has pointed tooth structure, is provided with accordingly the linkage gear 302 of pointed tooth 303 structures simultaneously on driven wheel 300.In working process, clutch block 400 and linkage gear 302 engagements, drive feed roll gear 200 to rotate, and turns over after hypodontia part 201, and have toothed portion 202 and the involute gear tooth engagement of driven wheel body 301 of feed roll gear 200 are rotated, and realize paper feeding.This implementation principle of work is identical with above-mentioned implementation, can effectively reduce the probability of apical tooth, and more effectively pulsation-free engagement.
Embodiment seven
The structural representation of the paper feeding control setup that Figure 19 and 20 provides for the embodiment of the present invention seven, the difference of the present embodiment and above-described embodiment five is, the engaging piece of clutch block 400 401 is replaced with to friction lining with involute gear tooth.
Similar with embodiment tri-, driven wheel 300 comprises gear body 301 and linkage gear 302; Linkage gear 302 is fixedly connected with gear body 301; Linkage gear 302 has friction lining 304, with the friction lining engagement on clutch block 400.
As shown in Figure 19 and Figure 20, this implementation changes the clutch block 400 with involute gear tooth into clutch block 400 that end has friction lining 304 structures, friction lining 304 structures are set accordingly simultaneously on driven wheel 300, when the engaging piece 401 of clutch block 400 meshes with friction lining 304 structures, by friction force, drive feed roll gear 200 to rotate, turn over after hypodontia part 201, feed roll gear 200 rotates with involute gear tooth engagement, realizes paper feeding.This implementation working process is identical with above-mentioned implementation, and this scheme can be avoided apical tooth situation by actv., and can pulsation-free transmission, and noise is little, is particularly suitable for the less image forming apparatus of load and uses.
Paper feeding control setup provided by the present invention, can effectively realize one time one separation and provide recording medium and intermittence provides recording medium.Meanwhile, in the course of the work, feed roll strength of gear is stable for this paper feeding control setup, and required propulsive effort is little, so this paper feeding control setup is stable, low energy consumption, low noise.In addition, this paper feeding control setup is simple in structure, easy installation and removal, and actv. has been saved productive costs.
The embodiment of the present invention also provides a kind of image forming apparatus, at least comprises feed roll, also comprises the paper feeding control setup that any embodiment of the present invention provides, and the feed roll gear in paper feeding control setup is connected with feed roll, to drive feed roll to rotate paper feeding.Certainly, the structure of image forming apparatus is not limited to feed roll, for example, can be shown in Figure 3, comprise device required in other image forming apparatus.
Paper feeding control setup in the present invention is releasably attached in image forming apparatus, and this image forming apparatus can be chopping machine, can be also facsimile unit, duplicator etc. other the multi-function device of the similar functions such as printing function, scan function is equipped with.
The paper feeding control setup that adopts said structure, has solved the existing variety of issue of paper feeding control setup in prior art, its in the course of the work, stable, power consumption is less, noise is little, and paper feeding control setup is simple in structure, easy installation and removal, cost are low.Elastic parts in paper feeding control setup can rotate together with feed roll gear simultaneously, can in the process of feed roll gear rotation, constantly do not stretched and cause its elasticity to reduce, thereby affect the stability of paper feeding operation, cause causing paper feeding failure, for user's use brings convenience.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (16)
1. a paper feeding control setup, comprises driven wheel and with hypodontia feed roll gear partly, it is characterized in that, also comprises:
Clutch block, described clutch block is arranged on the end face of described feed roll gear and along the setting that radially slides of described feed roll gear, described clutch block is provided with for the engaging piece with driven wheel transmission towards the end of driven wheel;
Control assembly, described control assembly is for controlling clutch block along the radially sliding of described feed roll gear, with driven wheel engagement or separated.
2. paper feeding control setup according to claim 1, is characterized in that, also comprises:
Limit assembly, described limit assembly is fixedly installed on the end face of described feed roll gear; Described control assembly, for contacting or depart from the side of limit assembly, is realized and is applied or remove spacing to the rotation of feed roll gear.
3. paper feeding control setup according to claim 2, is characterized in that,
On the end face of described feed roll gear, be formed with through hole, described clutch block is chimeric and be slidably arranged in described through hole, so that along the setting that radially slides of feed roll gear.
4. paper feeding control setup according to claim 3, is characterized in that, control assembly comprises:
The first drive part, first resets partly and the first control part, wherein,
The first end of described the first drive part is fixedly installed with respect to described feed roll gear, the second end of described the first drive part is fixedly connected with described clutch block, between the first end of described the first drive part and the second end, be provided with the first elastic part, for applying to clutch block the power of supporting along supporting direction, wherein, described in, support direction and be clutch block along feed roll gear radially and away from the direction of feed roll gear center;
Described the first reset portion is divided with respect to the movable setting of described feed roll gear, described first resets part for applying reset force along reset direction to described clutch block, wherein, described reset direction is for driving clutch block along the radially direction of also close feed roll gear center of feed roll gear;
Described the first control part, at least comprises the first controller and the first control handle, and described the first controller drives described the first control handle action, to apply or to remove the restriction to the described power of supporting.
5. paper feeding control setup according to claim 4, is characterized in that,
The first end of described the first drive part is the fixed end being fixedly installed on the S. A. of described feed roll gear, the second end of described drive part is the first projection being fixedly installed on the side of described clutch block, and described the first elastic part fixed clamp is between described the first projection and fixed end.
6. according to the paper feeding control setup described in claim 4 or 5, it is characterized in that, described the first reset portion is divided and is comprised:
The second projection, is fixedly installed on the side that deviates from the first projection on described clutch block, and through described through hole;
Resetting block, is fixedly installed on the side that feed roll gear deviates from described clutch block, and on described resetting block, is provided with cam chute, for accommodating described the second projection, with the clutch block driving and guide in rotation process, resets.
7. paper feeding control setup according to claim 6, is characterized in that,
Described the first control part also comprises the support consisting of pedestal, hold-down arm and position limit arm, and described the first controller is relay;
The middle part of described the first control handle is supported on hold-down arm, the first end of described the first control handle is plugged in the spacing hole of position limit arm, the second end of described the first control handle is provided with claw and the 3rd projection, between the second end of described the first control handle and pedestal, is connected with control handle spring;
Described relay is arranged on described pedestal, for controlling described the first control handle, is being parallel to support in direction and the plane perpendicular to feed roll gear face swings around described hold-down arm;
Described claw axially stretches out along described feed roll gear, for departing from when the first control handle swings or contact clutch block, to remove or to apply supporting the restriction of power;
Described the 3rd projection and described limit assembly are supported spacing mutually along the rotation direction of described feed roll gear, described the first control handle swings so that described the 3rd projection contact or disengaging limit assembly are realized feed roll gear rotary spacing or remove spacing.
8. paper feeding control setup according to claim 2, is characterized in that,
On the end face of described feed roll gear, be provided with slide rail projection pair, for clamping described clutch block and guiding described clutch block radially sliding along feed roll gear.
9. paper feeding control setup according to claim 8, is characterized in that,
Control assembly comprises: the second drive part, and second resets partly and the second control part, wherein,
Described the second drive part arranges with respect to described feed roll gear is movable, described the second drive part is for applying to clutch block the power of supporting along supporting direction, wherein, described in, support direction and be clutch block along feed roll gear radially and away from the direction of feed roll gear center;
The described second first end that resets part is fixedly connected with feed roll gear, the described second the second end that resets part is fixedly connected with described clutch block, described second resets is provided with the second elastic part between first end partly and the second end, for applying reset force along reset direction to described clutch block, wherein, described reset direction is for driving clutch block along the radially direction of also close feed roll gear center of feed roll gear;
Described the second control part, at least comprises second controller and the second control handle, and described second controller drives described the second control handle action, to apply or to remove the restriction to described reset force.
10. paper feeding control setup according to claim 9, it is characterized in that: described limit assembly is to be fixedly installed on the end face of described feed roll gear and five projection of described slide rail projection to a relative side, described the second control handle is provided with the 6th projection corresponding to the position of described the 5th projection, the side of contact or disengaging the 5th projection when described the 6th projection moves radially along feed roll gear with the second control handle, realizes the spacing of feed roll gear rotation or removes spacing.
11. paper feeding control setups according to claim 10, is characterized in that: the right height of described slide rail projection is less than the height of described the 5th projection.
12. according to the arbitrary described paper feeding control setup of claim 9 to 11, it is characterized in that:
Described the second control part also comprises fixed mount, and described second controller is relay, and described the second control handle two ends are provided with the first end plate and the second end plate, and described the second end plate is as described the second drive part;
Described the second drive part also comprises the 4th projection being fixedly installed on clutch block;
Described relay is arranged in described fixed mount, described relay comprises a stretching bar, one end of described stretching bar is fixedly connected with described the first end plate, to pass through to shrink described stretching bar at relay attracting state, and by moving the second control handle of first end strip, move to realize described the second end plate and described clutch block is applied to the power of supporting limit described the second reset portion simultaneously and divide and apply described reset force, and remove the restriction to described reset force in relay disengaged position.
13. paper feeding control setups according to claim 12, is characterized in that:
The described second first end that resets part is the S. A. of feed roll gear, the described second the second end that resets part is the fixed projection on clutch block, described the second elastic part is U-shaped spring, fixed cover is located on the S. A. of described feed roll gear, the end of described U-shaped spring is fixedly connected with described fixed projection, be used for applying described reset force, drive clutch block to move along reset direction.
14. paper feeding control setups according to claim 1, is characterized in that: described engaging piece is involute gear tooth, pointed tooth or friction lining.
15. paper feeding control setups according to claim 14, is characterized in that: described driven wheel comprises gear body and linkage gear; Described linkage gear is fixedly connected with described gear body; Described linkage gear has pointed tooth structure or friction lining, with pointed tooth or the friction lining engagement on described clutch block.
16. 1 kinds of image forming apparatus, at least comprise feed roll, it is characterized in that: also comprise the arbitrary described paper feeding control setup of claim 1-15, the feed roll gear in described paper feeding control setup is connected with described feed roll.
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| CN201210027764.0A CN102583075B (en) | 2012-02-08 | 2012-02-08 | Paper feeding control device and imaging equipment |
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| CN201210027764.0A CN102583075B (en) | 2012-02-08 | 2012-02-08 | Paper feeding control device and imaging equipment |
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| CN107639875B (en) * | 2016-07-20 | 2019-05-28 | 宝山钢铁股份有限公司 | A kind of molding machine timing gear protective device |
| CN106652265B (en) * | 2016-11-11 | 2023-02-28 | 深圳怡化电脑股份有限公司 | Self-service terminal's device and self-service terminal of drawing a bill |
| CN107247395B (en) * | 2017-06-20 | 2023-09-29 | 唐山曹妃甸映美科技有限公司 | Stop transmission mechanism and carbon powder cylinder |
| JP7220636B2 (en) * | 2019-07-30 | 2023-02-10 | シンフォニアマイクロテック株式会社 | clutch |
| CN111025872A (en) * | 2019-12-30 | 2020-04-17 | 贵州云侠科技有限公司 | Selenium drum of laser printer |
| CN117309227A (en) * | 2023-10-27 | 2023-12-29 | 中国船舶集团有限公司第七一五研究所 | Pressure detection device and method for metering detection |
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| US5863036A (en) * | 1995-10-20 | 1999-01-26 | Ricoh Company, Ltd. | Sheet feeding device and image forming apparatus having the same |
| US5944305A (en) * | 1997-01-30 | 1999-08-31 | Canon Kabushiki Kaisha | Drive transmitting device, sheet feeding device and image forming apparatus |
| JP3912880B2 (en) * | 1997-12-26 | 2007-05-09 | キヤノン株式会社 | Clutch device and paper feeding device |
| JP2010202379A (en) * | 2009-03-05 | 2010-09-16 | Ricoh Co Ltd | Paper feeder, image forming device |
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Effective date of registration: 20190430 Address after: 519060 Central District A, Building 3, 01, 3883 Zhuhai Avenue, Zhuhai City, Guangdong Province Patentee after: ZHUHAI PANTUM ELECTRONICS Co.,Ltd. Address before: 519075 No. 63 Mingzhu North Road, Xiangzhou District, Zhuhai City, Guangdong Province Patentee before: Zhuhai Saine Printing Technology Co.,Ltd. |
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