CN207804161U

CN207804161U - The scratch resistant paper structure of paper extraction machine

Info

Publication number: CN207804161U
Application number: CN201721253297.8U
Authority: CN
Inventors: 宓福建; 陈棋; 陆宝全
Original assignee: Suzhou Yifuer Electronic Co Ltd
Current assignee: Suzhou Yifuer Electronic Co Ltd
Priority date: 2017-09-27
Filing date: 2017-09-27
Publication date: 2018-09-04
Anticipated expiration: 2027-09-27

Abstract

The utility model discloses a kind of scratch resistant paper structures of paper extraction machine, including elastic component and backplate；The backplate is located above cutter；The elastic component is arranged on backplate, and the elastic component protrudes from the cut surface of cutter in non-stress, the backplate；For the backplate after the active force by paper to cutter, compression elastic piece makes backplate move, and the cut surface of the cutter protrudes from backplate.Backplate is located at outside the cut surface of cutter, and paper is only contacted with backplate, is not contacted with the cut surface of cutter, and then the cut surface of cutter is avoided to generate scraping with paper surface；When needing to cut off paper, paper is pulled to horizontal direction, and backplate moves, and exposes the cut surface of cutter, and the cut surface of cutter is made to be contacted with paper and cut off paper.

Description

The scratch resistant paper structure of paper extraction machine

Technical field

The utility model is related to a kind of scratch resistant paper structures of paper extraction machine.

Background technology

In the prior art, Authorization Notice No. is the electric induction type automatic paper feeding machine disclosed in " CN2738710Y ", paper extraction Cylindrical toilet paper roll is provided in machine, there are one paper taking port, the paper taking ports for the lower section setting of the shell of this kind of paper extraction machine Top tool there are one be parallel to the paper cutter of toilet paper roll width direction.User is by the toilet paper on toilet paper roll After detaching paper extraction machine, toilet paper is pulled towards cutter direction, toilet paper is made to cut off.

In the prior art, in order to improve the cut-out performance of cutter, multiple sharp protrusions are provided on cutter, protrusion edge is cut Knife length direction extends to form cut surface.During pulling toilet paper to the cut surface direction of cutter, protrusion is pierced into toilet paper It is interior, facilitate and more efficiently cuts off toilet paper in drawing process.

But during extracting paper out, the cut surface of cutter is easy to generate scraping with the surface of toilet paper, causes to take out The toilet paper gone out is impaired, influences paper quality.

Utility model content

The purpose of this utility model is to provide a kind of scratch resistant paper structure of paper extraction machine, and having prevents paper from being scraped with cutter, protects Demonstrate,prove the advantage of paper quality.

The above-mentioned technical purpose of the utility model technical scheme is that：A kind of paper extraction machine preventing paper from being scraped Structure, including elastic component and backplate；The backplate is located above cutter；The elastic component is arranged on backplate, the elastic component In non-stress, the backplate protrudes from the cut surface of cutter；The backplate after the active force by paper to cutter, Compression elastic piece makes backplate move, and the cut surface of the cutter protrudes from backplate.

By using above-mentioned technical proposal, in normal extraction process downwards, backplate is located at outside the cut surface of cutter paper, Paper is only contacted with backplate, is not contacted with the cut surface of cutter, and then the cut surface of cutter is avoided to generate scraping with paper surface； When needing to cut off paper, paper is pulled to horizontal direction, is contacted with the surface of backplate and is pressed backplate to horizontal direction, elasticity Part, which is pressurized, to be shunk, and backplate moves, and exposes the cut surface of cutter, and the cut surface of cutter is made to be contacted with paper and cut off paper .

Preferably, being provided with limiting slot on the backplate, the limiting slot extends along the moving direction of backplate, the limit It is provided with the limited block abutted with limiting slot in the stroke range of position slot.

By using above-mentioned technical proposal, during backplate is displaced outwardly, limited block is abutted with limiting slot, prevents from protecting Plate is excessively displaced outwardly；Limiting slot limits the maximum stroke distances of backplate with limited block simultaneously, i.e., limitation backplate, which protrudes from, cuts The cut surface distance of knife, improves the mobile accuracy of backplate.

Preferably, the limited block is arranged on cutter.

By using above-mentioned technical proposal, using cutter as positioning datum, backplate is made to protrude from the cut surface distance of cutter It is more accurate.

Preferably, further including the slippage slot being arranged in shell, the backplate sliding is connected in slippage slot.

By using above-mentioned technical proposal, slippage slot plays the role of positioning to the movement of backplate, prevents backplate It shakes, improves the stability in backplate moving process；Slippage slot plays positioning to elastic component and provides the work of abutting force simultaneously With.

Preferably, the limited block is arranged in slippage slot, between the top of the limited block and the top of slippage slot Spacing be more than backplate thickness.

By using above-mentioned technical proposal, limited block plays the role of limiting backplate range；Slippage slot provides Another set-up mode of limited block；Spacing between limited block and slippage slot enters for backplate, and then backplate can be mounted on and slide It moves in slot.

Preferably, the backplate includes the lattice block far from slippage slot setting, the lattice block is along the length side of backplate To extension, the thickness of the lattice block is more than the height of slippage slot.

By using above-mentioned technical proposal, the thickness of lattice block is more than the height of slippage slot, slippage slot prevent lattice block into Enter, and then slippage slot coordinates with limited block, limits the formation size of backplate movement, improves the precision of backplate movement.

Preferably, the lattice block is provided with guiding surface.

By using above-mentioned technical proposal, guiding surface plays the role of moving for paper, avoids the corner angle of lattice block It is contacted with paper, causes the damage of paper.

Preferably, the elastic component is the Spring pins being arranged on backplate, the Spring pins are in pair on backplate Setting, one end of the Spring pins is claimed to be connect with backplate, the other end of the Spring pins is abutted with shell.

By using above-mentioned technical proposal, Spring pins drive backplate after backplate compression, by the elastic potential energy of accumulation The cut surface for protruding from cutter, prevents paper from scraping；Symmetrically arranged Spring pins make the movement of backplate more balance；It protects simultaneously Plate is integrally formed with Spring pins, reduces the production cost of backplate.

Preferably, being provided with limit salient point between the Spring pins and backplate, the limit salient point is arranged in elasticity The one end of pin far from backplate.

By using above-mentioned technical proposal, limit salient point limits the deformation range of Spring pins, and then prevents and backplate The Spring pins of connection are broken in link position, improve the service life of backplate.

Preferably, the elastic component is the metal spring being arranged in slippage slot, one end of the metal spring and shield Plate abuts, the limited post being provided in the slippage slot in embedded metal spring.

By using above-mentioned technical proposal, another technical solution that elasticity is provided backplate is provided；Slippage slot is to gold Belong to spring and play the role of protection, limited post plays the role of positioning to metal spring.

In conclusion the utility model has the advantages that：

1. backplate is located at outside the cut surface of cutter, paper is only contacted with backplate, is not contacted with the cut surface of cutter, and then keep away The cut surface and paper surface for exempting from cutter generate scraping；

2. when needing to cut off paper, paper is pulled to horizontal direction, and backplate moves, and exposes the cutting of cutter Face makes the cut surface of cutter be contacted with paper and cut off paper.

Description of the drawings

Fig. 1 is the structural schematic diagram of the panel of paper extraction machine in embodiment 1；

Fig. 2 is the structural schematic diagram after paper extraction machine removal panel in embodiment 1；

Fig. 3 is the structural schematic diagram that paper extraction machine removes after panel and roll paper in embodiment 1；

Fig. 4 is the enlarged diagrams of A portions shown in Fig. 3；

Fig. 5 is the structural schematic diagram of paper extraction machine roller fixed structure in embodiment 1；

Fig. 6 is the structural schematic diagram of holding tank in dorsal shield；

Fig. 7 is the enlarged diagrams of B portions shown in Fig. 6；

Fig. 8 is the diagrammatic cross-section of annular ring and placing groove connection relation in embodiment 1；

Fig. 9 is the structural schematic diagram of paper extraction machine paper feeder in embodiment 1；

Figure 10 is the structural schematic diagram after paper extraction machine paper feeder removal side mounting portion in embodiment 1；

Figure 11 is the diagrammatic cross-section of paper extraction machine paper feeder in embodiment 1, the connection for embodying end cap and fixing axle Relationship；

Figure 12 is the structural schematic diagram of the scratch resistant paper structure of paper extraction machine in embodiment 1；

Figure 13 is the enlarged diagrams of C portions shown in Figure 12, the shape for embodying cutter and position；

Figure 14 is the structural schematic diagram of slippage slot in the scratch resistant paper structure of paper extraction machine in embodiment 1；

Figure 15 is the structural schematic diagram of the backplate of the scratch resistant paper structure of paper extraction machine in embodiment 1；

Figure 16 is the schematic diagram of the movement relation between the backplate and cutter of the scratch resistant paper structure of paper extraction machine in embodiment 1；

Figure 17 is the structural schematic diagram of the backplate of the scratch resistant paper structure of paper extraction machine in embodiment 2.

In figure, 1, shell；11, panel；12, dorsal shield；13, cover board；14, transparent window；15, paper taking port；16, infrared ray is examined Survey portion；17, roll paper；2, paper extraction machine roller fixed structure；21, roller bearing；22, support portion；23, holding tank；24, shrapnel；25, it is oriented to Skewback；26, buckling groove；27, placing groove；271, it is open；272, half slot；273, inclined ramp；28, annular ring；281, first Curved portion；282, horizontal contact section；283, the second curved portion；284, hollow cavity；3, paper extraction machine paper feeder；31, rotating roller； 311, fixing axle；312, end cap；313, rotation hole；314, positioning column；315, threaded hole；316, the first rubber sleeve；317, salient point； 32, pressure roller；321, the second rubber sleeve；33, motor；331, first gear；332, second gear；333, straight slot；334, spring base； 335, the first fixed column；336, the second fixed column；337, spring；338, fixing groove；34, mounting portion；35, slot；36, it picks and places Mouthful；37, channel is abutted；4, the scratch resistant paper structure of paper extraction machine；41, cutter；42, raised；43, cut surface；44, backplate；45, it slides Slot；46, Spring pins；461, salient point is limited；462, lattice block；463, guiding surface；464, limiting slot；465, limited block；5、 Metal spring；51, limited post.

Specific implementation mode

The utility model is described in further detail below in conjunction with attached drawing.

This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but As long as all being protected by Patent Law in the right of the utility model.

Embodiment 1：As shown in Figure 1, a kind of paper extraction machine, including shell 1, shell 1 include panel 11 and dorsal shield 12, dorsal shield 12 It is arranged within metope, the cover board 13 that the top of panel 11 can be turned out and open, is exposed in Fig. 2 after opening cover board 13 Pick and place mouth 36.The center of cover board 13 is provided with it can be seen that paper extraction machine inside roll paper 17（Roll paper 17 has embodiment in fig. 2）Hold The transparent window 14 of amount.The lower part of panel 11 is provided with paper taking port 15, there is the paper that can be extracted out in paper taking port 15.

As shown in Figures 2 and 3, according to the path of the process of roll paper 17, fixed roll paper is from top to bottom followed successively by dorsal shield 12 The position of 17 paper extraction machine roller fixed structure 2, the paper extraction machine paper feeder 3 of downward paper feeding position, cut off roll paper 17 pumping The position of the scratch resistant paper structure of paper machine 4.

As shown in figure 3, after removal roll paper 17, it can be seen that be provided with infrared detection portion 16, infrared ray inspection in paper taking port 15 Survey portion 16 is that infrared sensor detects after being blocked, paper extraction machine paper feeder for detecting whether paper taking port 15 is blocked 3 send out downwards roll paper 17.

As shown in figure 3, paper extraction machine roller fixed structure 2 includes roller bearing 21, the roll paper 17 being wound on roller bearing 21 in Fig. 2 （In order to understand that the structure of roller bearing 21, part of the roll paper 17 on roller bearing 21 have removed）.

As shown in figure 4, paper extraction machine paper feeder 3 includes two rotating rollers 31 being oppositely arranged and pressure roller 32, on roll paper 17 Roll paper 17 be pressed together between rotating roller 31 and pressure roller 32, when rotating roller 31 and pressure roller 32 rotate, driving roll paper 17 is downward It is mobile, and removed from above-mentioned paper taking port 15.

As shown in figure 4, the scratch resistant paper structure of paper extraction machine 4 includes the cutter 41 extended along 15 length direction of paper taking port（Cutter 41 Structure can be specifically described later）, user by above-mentioned roll paper 17 by, to horizontal direction extraction, making cutter 41 and roll paper 17 Contact, roll paper 17 is cut off.

As shown in figure 5, paper extraction machine roller fixed structure 2 includes two support portions 22 being oppositely arranged, support portion 22 is modeling Shell-like structure made of material；As shown in fig. 6, dorsal shield 12 is arranged in the direction of the width, there are two holding tanks 23（Left side holding tank 23 Being blocked can not indicate）, support portion 22 is plugged in holding tank 23.As shown in figure 5, the side of support portion 22 is provided with shrapnel 24, the upper surface of shrapnel 24, which is provided with, is oriented to skewback 25；As shown in fig. 7, the inner wall of holding tank 23 is provided with and is oriented to skewback 25 Mating buckling groove 26.

As shown in fig. 7, after support portion 22 is inserted into holding tank 23, it is oriented to skewback 25 and above-mentioned shrapnel 24 is deformed inward, it is embedding Enter in buckling groove 26；During support portion 22 is displaced outwardly, it is oriented to skewback 25 and is abutted with the side wall of buckling groove 26, limitation branch Support part 22 is extracted；It when needing to remove support portion 22, presses and is oriented to skewback 25, guiding skewback 25 is made inwardly to become with shrapnel 24 Shape facilitates support portion 22 to extract out.

As shown in figure 5, in two support portions 22 being oppositely arranged, it is each provided with a placing groove 27, two placing grooves 27 In being oppositely arranged.21 both ends of roller bearing for being wound with above-mentioned roll paper 17 are separately positioned in two placing grooves 27, pull downward on roll paper When 17, the rotation in placing groove 27 of roller bearing 21.

As shown in fig. 6, for tool there are one opening 271, placing groove 27 includes arranged at the bottom half to each placing groove 27 upwards Circular groove 272 is arranged with the inclined ramp 273 in 272 side of half slot, inclined ramp 273 is arranged towards the side for picking and placeing mouth 36.

The fetching process of roller bearing 21 is：User, which stretches into hand, picks and places mouth 36, then by roller bearing 21 out of half slot 272, Roller bearing 21 is moved along the direction of inclined ramp 273, and takes out roller bearing 21 from picking and placeing mouth 36, placing groove 27 is detached from roller bearing 21 During, inclined ramp 273 plays the role of reducing 21 mobile route of roller bearing, while during roller bearing 21 moves, Inclined ramp 273 provides support force.

As shown in figure 5, the angle of inclination between inclined ramp 273 and horizontal plane is 40-60 degree, it is 60 in the present embodiment Degree；The seamed edge of half slot 272 and the seamed edge of inclined ramp 273 are excessive in circular arc, reduce between above-mentioned roll paper 17 and placing groove 27 Friction.

As shown in figure 5, the both ends of 21 length direction of roller bearing have been arranged concentrically annular ring 28, annular ring 28 and roller bearing 21 are concentric Setting；The thickness of annular ring 28 is 2-4mm, i.e. annular ring 28 slightly protrudes from 21 outer surface 2-4 ㎜ of roller bearing, annular in the present embodiment The thickness of circle 28 is 3 ㎜.

From the longitudinal section of annular ring 28, the contour shape of annular ring 28 includes the first curved portion 281, horizontal contact section 282 and second curved portion 283；In the contact process of roller bearing 21 and above-mentioned placing groove 27, roller bearing 21 passes through horizontal part and placement Slot 27 is contacted in line, by way of reducing contact area, reduces the frictional force between roller bearing 21 and placing groove 27.

As shown in figure 5, in hollow setting and being formed with hollow cavity 284 in roller bearing 21, hollow cavity 284 is along roller bearing 21 Length direction extend to the both ends of roller bearing 21；Hollow cavity 284 reduces roller bearing 21 to the pressure of placing groove 27, that is, reduces Frictional force between roller bearing 21 and placing groove 27.

The operation principle of paper extraction machine roller fixed structure 2 is：In replacement process, user opens panel 11, grips Roll paper 17 on roller bearing 21 takes out roller bearing 21 then along the guide direction of inclined ramp 273 out of half slot 272；It uses New roll paper 17 is set on roller bearing 21 by person manually, is then placed into roller bearing 21 in half slot 272 along inclined ramp 273. During the use of paper extraction machine, user pulls roll paper 17, roll paper 17 to drag roller bearing 21 rotation, roller bearing in half slot 272 21 in rotation process, and annular ring 28 is contacted with placing groove 27 in line.

As shown in Fig. 2, paper extraction machine paper feeder 3 includes the mounting portion 34 being arranged in the dorsal shield 12 of paper extraction machine, mounting portion 34 plastic housings for being oppositely arranged on 1 inside of shell for two, Fig. 3 are that the mounting portion 34 on right side is cut out the signal after a part Figure, rotating roller 31 are rotatably connected between opposite mounting portion 34；As shown in fig. 6, being provided on dorsal shield 12 for above-mentioned mounting portion 34 slots 35 being inserted into.

As shown in figure 9, the front of rotating roller 31 is provided with pressure roller 32, the circumference of the circumference side and rotating roller 31 of pressure roller 32 It is formed with the abutting channel 37 passed through for the roll paper 17 on roller bearing 21 between side, after rotating roller 31 rotates, drives roll paper 17 By abutting channel 37, blanking is realized.

As shown in Figure 10, the both ends of rotating roller 31 along its length are outward extended with fixing axle 311, are arranged on mounting portion 34 After having end cap 312, fixing axle 311 to be fed through the rotation hole 313 at 312 center of end cap, fixing axle 311 can be opposite with rotation hole 313 Rotation, and then rotated for rotating roller 31；Setting is there are three positioning column 314 on the circumferential side wall of end cap 312, in positioning column 314 The heart is provided with the threaded hole 315 screwed in for screw, and then the end cap 312 of both sides is solid by the screw of screw-in and mounting portion 34 It is fixed.

As shown in Figure 10, motor 33 be arranged it is parallel with the axis of rotating roller 31 and with the position of 31 homonymy of rotating roller, Gu It is provided with second gear 332 on dead axle 311, first gear 331 is provided on the motor shaft of motor 33；First gear 331 and Two gears 332 are in meshing state (mounting portion 34 in Figure 10 has been hidden) in mounting portion 34, after motor 33 rotates, Rotating roller 31 is driven to rotate automatically；When being manually placed in above-mentioned infrared detection portion 16, infrared detection portion 16 detects light Line is blocked, and motor 33 rotates；After hand leaves infrared detection portion 16, infrared detection portion 16 is not detected light and is hidden Gear, motor 33 stop.

As shown in Figure 10, in order to make pressure roller 32 compress rotating roller 31, the side of mounting portion 34 is provided with towards rotating roller 31 The straight slot 333 of extension is set, spring 337 and spring base 334 are provided in straight slot 333, spring base 334 is in the length side of straight slot 333 Upward sliding；Spring 337 is arranged in straight slot 333, and is abutted respectively with the side wall of the end of spring base 334 and straight slot 333；When When the roll paper 17 of process is blocked up, pressure conduction to spring base 334, compressed spring 337 makes abutting channel 37 become larger, and confession is thicker Above-mentioned roll paper 17 passes through；Ensure that spring 337 ensure that the clamping force to roll paper 17 simultaneously, facilitate in 31 rotation process of rotating roller, Roll paper 17 is moved to above-mentioned paper taking port 15.

As shown in Figure 10, in order to realize that the fixation of spring 337, the end of spring base 334 and the side wall of straight slot 333 are set respectively It is equipped with the first fixed column 335 and the second fixed column 336, the first fixed column 335 and the second fixed column 336 are embedded in 337 length of spring The both ends in direction prevent 337 play of spring.

As shown in Figure 10, the position that spring base 334 is contacted with straight slot 333 is recessed to form fixing groove 338 shown in Figure 11, The side wall of fixing groove 338 plays the role of that 333 side of straight slot is clamped, and prevents the double swerve in moving process of spring base 334.

As shown in figure 11, the concrete structure of rotating roller 31 and pressure roller 32 is a root long pipe.The circumferential side wall of rotating roller 31 It is arranged with the first rubber sleeve 316, the first rubber sleeve 316 is evenly distributed with multiple along the length direction of rotating roller 31；First rubber Salient point 317 is evenly distributed on set 316, salient point 317 plays the effect for improving the elasticity contacted with roll paper 17.

As shown in figure 11, the circumferential side wall of pressure roller 32 is also equipped with multiple second rubber corresponding with the first rubber sleeve 316 Set 321, the second rubber sleeve 321 is corresponding with salient point 317, plays the role of carrying elastomeric.

The operation principle of paper extraction machine paper feeder 3 is：User will be manually placed in infrared detection portion 16, infrared ray inspection Survey portion 16, which detects, to be blocked, and infrared detection portion 16 sends out signal, and after microcontroller receives and judges, microcontroller sends out letter Number, control motor 33 rotates, and motor 33 drives rotating roller 31 to rotate so that and the roll paper 17 on roller bearing 21 is moved to paper taking port 15, After reaching appropriate length, hand removes infrared detection portion 16, and infrared detection portion 16 sends out the signal not being blocked, by list After piece machine receives and judges, microcontroller sends out signal, and control motor 33 stops operating, and user can tear roll paper 17；It is moving During dynamic, pressure roller 32 is in abutting state with rotating roller 31 always in the active force of spring 337.

As shown in figure 12, the scratch resistant paper structure 4 of paper extraction machine includes cutter 41 and backplate 44, and cutter 41 is arranged in above-mentioned roll paper 17 Motion track on, i.e., close to the position of above-mentioned paper taking port 15, cutter 41 is fixedly connected with the inside of shell 1, and cutter 41 is located at The top of paper taking port 15, cutter 41 extend along the length direction of paper taking port 15.As shown in figure 13, several are provided on cutter 41 Sharp protrusion 42, protrusion 42 are uniformly distributed to form cut surface 43 along the length defence line of cutter 41.

The purpose of design of scratch resistant paper structure is：One is provided during downward paper extraction, is protruded above in the horizontal direction In the backplate 44 of the cut surface 43 of cutter 41, roll paper 17 is made not contacted with cutter 41, reduces scraping between roll paper 17 and cutter 41 It wipes；In order to enable 41 Web-roll cutting 17 of cutter, when backplate 44 is after by the power of 17 horizontal direction of roll paper, push cutter 41 to cutting 41 rear of knife is moved, and is exposed cutter 41 and is cut off roll paper 17.

As shown in figure 14, slippage slot 45 is arranged in the inside of shell 1 and above the cutter 41, the length of slippage slot 45 and The part sliding of the equal length of backplate 44, backplate 44 is connected in slippage slot 45.

As shown in figure 15, backplate 44 is plate-like, and the setting of one end of 44 width direction of backplate is there are two Spring pins 46, two Spring pins 46 are symmetrical set, and the other end of Spring pins 46 is abutted with above-mentioned slippage slot 45.The end of Spring pins 46 is set It is equipped with limit salient point 461；Two Spring pins 46 are connected to the center of 44 length direction of backplate, Spring pins 46 and shield Plate 44 is formed by integrated through injection molding.

As shown in figure 15, limit salient point 461 avoids the end of Spring pins 46 from being pressure bonded on backplate 44, causes Spring pins The deformation quantity of 46 link positions is excessive, and Spring pins 46 is avoided to be broken with 44 link position of backplate.44 width direction of backplate The other end be provided with lattice block 462, the vertical sectional shape of lattice block 462 is triangular in shape, length of the lattice block 462 along backplate 44 Direction extends.The upper surface of lattice block 462 be guiding surface 463, guiding surface 463 for above-mentioned roll paper 17 pass through, reduce with it is upper State the scraping of roll paper 17.

As shown in figure 15, after active force of the backplate 44 by horizontal direction, backplate 44 is moved towards above-mentioned slippage slot 45 is interior Dynamic, Spring pins 46 are flared out, and accumulate elastic potential energy；After external forces remove, Spring pins 46 inwardly bounce back, driving Backplate 44 moves outside towards slippage slot 45

As shown in figure 14, when backplate 44 in slippage slot 45 in slipping, most amphi position of the backplate 44 far from slippage slot 45 It sets, the abutting for being limited block 465 and limiting slot 464 is limited（Limiting slot 464 embodies in fig.15, is half section in Figure 14 Figure）.As shown in figure 15, limiting slot 464 is arranged on backplate 44, and limiting slot 464 extends along the width direction of backplate 44；Such as Figure 14 Shown, limited block 465 is vertically arranged on cutter 41, and 465 41 upward metal plate of cutter made of metal of limited block is bent to form. During backplate 44 slides, limited block 465 is located in limiting slot 464, when the process that backplate 44 is moved to outside slippage slot 45 In, limited block 465 is abutted with limiting slot 464, limits the maximum distance that backplate 44 is displaced outwardly.

As shown in figure 16, backplate 44 moves into the distance of slippage slot 45, is limited by lattice block 462 and slippage slot 45, lattice block 462 thickness is more than the height of slippage slot 45, therefore backplate 44, during being moved to slippage slot 45, lattice block 462 can not It moves into slippage slot 45, that is, limits the distance that backplate 44 is moved into slippage slot 45.

The operation principle of the scratch resistant paper structure of paper extraction machine 4 is that above-mentioned roll paper 17 directly discharges by paper taking port 15, even if roll paper 17 slightly exert a force to horizontal direction during pulling out, and as shown in figure 16, backplate 44 also only can be moved slightly into slippage slot 45 It is dynamic；After the roll paper 17 that user pulls out arrives required length, user pulls roll paper 17 to horizontal direction.Backplate 44 is by level After the active force in direction, elasticity of compression pin 46 makes backplate 44 be moved into slippage slot 45, keeps the cutter 41 of 44 lower section of backplate sudden and violent Dew, the cut surface 43 of cutter 41 are contacted with the roll paper 17 to exert a force in horizontal direction, that is, have cut off roll paper 17；At this time backplate 44 not by Elastic potential energy driving lattice block 462 to the active force of roll paper 17, Spring pins 46 moves simultaneously to the direction far from slippage slot 45 Protrude from the cut surface 43 of cutter 41.

The operation principle of embodiment is：User will be manually placed in infrared detection portion 16, and infrared detection portion 16 examines It measures and is blocked, infrared detection portion 16 sends out signal, and after microcontroller receives and judges, the microcontroller in shell 1 is sent out Signal, control motor 33 rotate, and motor 33 drives rotating roller 31 and pressure roller 32 to rotate so that the roll paper 17 wound on roller bearing 21 to Paper taking port 15 moves, and after reaching appropriate length, hand removes infrared detection portion 16, and infrared detection portion 16, which is sent out, not to be blocked Signal, after microcontroller receives and judges, control motor 33 stop operating, user is in paper taking port 15 by roll paper 17 along water Square to pulling, after backplate 44 is by the active force of horizontal direction, elasticity of compression pin 46 makes backplate 44 be moved into slippage slot 45 It is dynamic, so that the cutter 41 of 44 lower section of backplate is exposed, the cut surface 43 of cutter 41 is contacted with the roll paper 17 to exert a force in horizontal direction, that is, cut Broken roll paper 17；Backplate 44 is by the active force of roll paper 17 at this time, the elastic potential energy driving lattice blocks 462 of Spring pins 46 to Direction far from slippage slot 45 is mobile and protrudes from the cut surface 43 of cutter 41, and roll paper 17 is avoided to be contacted with cutter 41.

Embodiment 2：As shown in figure 17, the scratch resistant paper structure 4 of a kind of paper extraction machine, embodiment 2 and embodiment 1 difference lies in： Elastic component is Spring pins 46 in embodiment 1, and elastic component replaces with metal spring 5 in embodiment 2, and metal spring 5 is arranged in cunning It moves in slot 45；Limited block 465 is arranged on cutter 41 in embodiment 1, and limited block 465 is arranged in slippage slot 45 in embodiment 2.

As shown in figure 17, metal spring 5 is arranged in slippage slot 45, and the bottom of slippage slot 45 is provided with limited post 51, gold The one end for belonging to spring 5 is set on limited post 51, and the other end of metal spring 5 is abutted with backplate 44；After pressing backplate 44, gold Belong to spring 5 to shrink in slippage slot 45.

As shown in figure 17, limited block 465 is arranged in 271 position of opening of slippage slot 45, the top of limited block 465 and sliding Spacing between the top of slot 45 is more than the thickness of backplate 44.And then backplate 44 can be by between limited block 465 and slippage slot 45 Gap install in slippage slot 45.

The application method of embodiment 2 is substantially the same manner as Example 1, only in 44 loading process of backplate, from Spring pins 46 Deformation, become the deformation of metal spring 5.

Claims

1. a kind of scratch resistant paper structure of paper extraction machine, it is characterised in that：Including elastic component and backplate (44)；The backplate (44), which is located at, cuts Above knife (41)；The elastic component is arranged on backplate (44), and for the elastic component in non-stress, the backplate (44) is convex For the cut surface (43) of cutter (41)；The backplate (44) is after the active force by paper to cutter (41), the elasticity of compression Part keeps backplate (44) mobile, and the cut surface (43) of the cutter (41) protrudes from backplate (44).

2. the scratch resistant paper structure of paper extraction machine according to claim 1, it is characterised in that：It is provided with limit on the backplate (44) Slot (464), the limiting slot (464) extend along the moving direction of backplate (44), are set in the stroke range of the limiting slot (464) It is equipped with the limited block (465) abutted with limiting slot (464).

3. the scratch resistant paper structure of paper extraction machine according to claim 2, it is characterised in that：Limited block (465) setting is being cut On knife (41).

4. the scratch resistant paper structure of paper extraction machine according to claim 2, it is characterised in that：Further include being arranged in shell (1) Slippage slot (45), backplate (44) sliding are connected in slippage slot (45).

5. the scratch resistant paper structure of paper extraction machine according to claim 4, it is characterised in that：The limited block (465) is arranged in cunning It moves in slot (45), the spacing between the top and the top of slippage slot (45) of the limited block (465) is more than the thickness of backplate (44) Degree.

6. the scratch resistant paper structure of paper extraction machine according to claim 4, it is characterised in that：The backplate (44) includes far from sliding The lattice block (462) of slot (45) setting, the lattice block (462) extend along the length direction of backplate (44), the lattice block (462) thickness is more than the height of slippage slot (45).

7. the scratch resistant paper structure of paper extraction machine according to claim 6, it is characterised in that：The lattice block (462), which is provided with, leads To inclined-plane (463).

8. the scratch resistant paper structure of paper extraction machine according to claim 1, it is characterised in that：The elastic component is to be arranged in backplate (44) Spring pins (46) on, the Spring pins (46) are symmetrical set on backplate (44), the Spring pins (46) One end connect with backplate (44), the other end of the Spring pins (46) is abutted with shell (1).

9. the scratch resistant paper structure of paper extraction machine according to claim 8, it is characterised in that：The Spring pins (46) and backplate (44) limit salient point (461) is provided between, the limit salient point (461) is arranged in the separate backplate (44) of Spring pins (46) One end.

10. the scratch resistant paper structure of paper extraction machine according to claim 4, it is characterised in that：The elastic component is that setting is sliding One end of metal spring (5) in slot (45), the metal spring (5) is abutted with backplate (44), is set in the slippage slot (45) The limited post (51) being equipped in embedded metal spring (5).