CN210650911U - Paper cutter and printer - Google Patents
Paper cutter and printer Download PDFInfo
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- CN210650911U CN210650911U CN201921399109.1U CN201921399109U CN210650911U CN 210650911 U CN210650911 U CN 210650911U CN 201921399109 U CN201921399109 U CN 201921399109U CN 210650911 U CN210650911 U CN 210650911U
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- driving
- paper cutter
- driving gear
- movable knife
- paper
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- 238000005520 cutting process Methods 0.000 claims description 42
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- 238000005452 bending Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 239000000758 substrate Substances 0.000 description 6
- 230000002441 reversible effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a paper cutter and printer, wherein, the paper cutter includes: the shell is provided with a through hole communicated with a cavity in the shell; the movable knife is arranged in the cavity; a drive chassis mounted outside the housing; the driving assembly is arranged on the driving rack and connected with a transmission assembly, and the transmission assembly penetrates through the through hole to be connected with the movable knife. The utility model discloses technical scheme can realize that the drive assembly drive can move the sword and relapse the cut paper motion, can make the inner space of paper cutter reduce again, reduces paper cutter thickness, conveniently assembles the paper cutter, and the paper cutter of being convenient for realizes miniaturizing.
Description
Technical Field
The utility model relates to a printer field, in particular to paper cutter and printer.
Background
In the automatic paper cutter on the market, because be through the motion of motor control movable sword to accomplish cut paper work, so the motor is connected with movable sword, and the motor sets up inside the paper cutter with movable sword simultaneously, and the thickness that leads to the paper cutter receives drive assembly's such as motor influence, makes the whole thickness of automatic paper cutter big, and automatic paper cutter equipment is difficult, and the printer miniaturization that utilizes automatic paper cutter realizes that the degree of difficulty is big.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a paper cutter, aim at realizing that the drive assembly drive can move the sword and relapse the cut paper motion, can make the inner space of paper cutter reduce again, reduce paper cutter thickness, conveniently assemble the paper cutter, the paper cutter of being convenient for realizes miniaturizing.
In order to achieve the above object, the utility model provides a paper cutter, the paper cutter includes:
the shell is provided with a through hole communicated with a cavity in the shell;
the movable knife is arranged in the cavity;
a drive chassis mounted outside the housing;
the driving assembly is arranged on the driving rack and connected with a transmission assembly, and the transmission assembly penetrates through the through hole to be connected with the movable knife.
Optionally, the transmission assembly comprises a rotating gear and a driving gear, the rotating gear is in meshing transmission with the output end of the driving assembly, the driving gear is in meshing transmission with the rotating gear, a driving gear shaft is arranged on the driving gear, and the driving gear shaft penetrates through the through hole to be connected with the movable knife.
Optionally, a central shaft is arranged at the center of the driving gear, the driving gear is mounted on the driving rack through the central shaft, and the driving gear shaft is arranged at a position deviating from the central shaft.
Optionally, a paper cutting opening is formed in the shell, the paper cutting opening is located on one side face adjacent to the through hole, the movable knife is mounted in the shell, a knife edge of the movable knife faces the paper cutting opening, and the driving assembly drives the movable knife to reciprocate in the direction of the paper cutting opening.
Optionally, the movable knife is provided with at least two guide shafts, the shell is provided with guide grooves corresponding to the guide shafts, the guide grooves extend towards the paper cutting opening, the guide shafts are sleeved in the guide grooves, and the guide shafts slide in the guide grooves.
Optionally, the movable knife is provided with a driving groove perpendicular to the moving direction of the movable knife, the through hole corresponds to the driving groove, the driving gear shaft penetrates through the through hole and the driving groove, and the driving gear drives the movable knife to move.
Optionally, an elastic part is arranged on the movable knife, the elastic part is arranged on the movable knife and comprises a fixed end and an elastic end, the fixed end is fixed on an inner wall of the shell, and the elastic end is pressed against one side, deviating from the inner wall of the fixed connection, of the movable knife, so that the movable knife is located between the elastic end and the fixed end.
Optionally, the driving rack is convexly provided with a pair of motor supporting arms, the driving assembly is located between the pair of motor supporting arms, and the motor supporting arms are connected with the outer surface of the driving assembly.
Optionally, the paper cutter still includes micro-gap switch, micro-gap switch with drive assembly electric connection, micro-gap switch installs in the drive frame, the protruding round platform that is equipped with of drive gear's terminal surface, the protruding shifting block that is equipped with of circumference of round platform, the shifting block along with drive gear when rotating with micro-gap switch's poker rod butt.
This application still provides a printer, the printer include body, stationary knife and as above the paper cutter, the paper cutter with the stationary knife is installed in the printer, just the cutting edge of the movable sword of paper cutter with the corresponding setting of cutting edge of stationary knife.
The utility model discloses technical scheme sets up the drive frame through the surface at the casing to place drive assembly in the drive frame, can realize that the drive assembly drive can move the sword and relapse the cut paper motion, can make the inner space of paper cutter reduce again, in order to keep on the basis that power lasts the operation, reduce paper cutter thickness, conveniently assemble the paper cutter, the paper cutter of being convenient for realizes miniaturizing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of the housing of the present invention;
fig. 2 is a schematic structural diagram of the driving assembly and the driving frame of the present invention;
fig. 3 is an exploded view of the driving assembly and the driving frame of the present invention;
FIG. 4 is a schematic view of the drive gear of FIG. 3;
fig. 5 is an exploded view of the housing of the present invention;
FIG. 6 is a schematic structural view of the elastic member shown in FIG. 5;
FIG. 7 is a schematic view of the structure of the movable blade of FIG. 5;
FIG. 8 is a schematic view showing the internal structure of the housing of FIG. 5;
the reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1 | |
32 | |
| 2 | |
33 | |
| 3 | |
331 | |
| 4 | |
332 | |
| 5 | |
333 | Shifting |
| 6 | Micro-switch | 41 | |
| 11 | Through |
42 | Knife |
| 12 | |
43 | Knife |
| 13 | |
44 | Knife back |
| 21 | |
51 | Fixed |
| 31 | |
52 | Elastic end |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 to 8, in the present embodiment, the paper cutter includes:
the device comprises a shell 1, wherein a through hole 11 communicated with a cavity in the shell 1 is formed in the shell 1;
the movable knife 4 is arranged in the cavity;
the driving machine frame 2 is arranged outside the shell 1;
and the driving component 3 is arranged on the driving rack 2, the driving component 3 is connected with a transmission component, and the transmission component penetrates through the through hole 11 and is connected with the movable knife 4.
In order to assemble the paper cutter conveniently, a driving assembly 3 for driving the movable blade 4 to move is arranged on the outer surface of the shell 1, a driving rack 2 is connected to the outer surface of the shell 1, and the driving assembly 3 is connected into the driving rack 2 so as to realize that the driving assembly 3 is placed outside the shell 1.
The housing 1 is provided with a cavity, the movable knife 4 is arranged in the cavity, the movable knife 4 is used for cutting paper, and the reciprocating paper cutting action of the movable knife 4 transmits power to the movable knife 4 through the driving assembly 3 so that the movable knife 4 slides in the housing 1.
The shell 1 further comprises a shell frame and a shell cover, a cavity capable of containing the movable blade 4 is formed between the shell frame and the shell cover after the shell frame and the shell cover are connected, the shell frame and the shell cover can be fixed through screws or clamped, and the specific shell frame and the shell cover can be arranged according to user requirements.
A paper cutting opening is formed in one side, facing the cutting edge of the movable knife 4, of the shell, a paper guide portion used for guiding paper is arranged on the paper cutting opening, the paper is placed on the paper guide portion, when the movable knife 4 is driven to reciprocate, the movable knife 4 moves towards the paper cutting opening, and when the movable knife moves to the paper guide portion, the cutting edge of the movable knife 4 cuts the paper of the paper guide portion.
Specifically, at least two guide shafts are arranged on the movable knife 4, a guide groove 12 opposite to the guide shafts is formed in one side inside the shell 1, the guide groove 12 extends towards the sliding direction of the movable knife 4, and when the driving assembly 3 drives the movable knife 4, the guide shafts slide in the guide groove 12 to realize that the movable knife 4 slides in the shell 1; in order to enhance the stability of the movable blade 4 connected to the housing 1, the number of the guide shafts is preferably three, and the distance between each two adjacent guide shafts is equal, so that the three guide shafts form an isosceles triangle-shaped guide area to enhance the stability of the movable blade 4.
The driving assembly 3 is a motor, an output shaft of the motor is connected with a worm, the worm is sleeved in the output shaft of the motor, the worm is in interference fit connection with the output shaft of the motor, power output by the driving assembly 3 is transmitted to the movable knife 4 through the transmission assembly, so that the movable knife 4 slides in the shell 1, wherein the transmission assembly comprises a rotating gear 32 and a driving gear 33, the rotating gear 32 is meshed with an output end of the motor, the motor transmits the power to the rotating gear 32, the rotating gear 32 transmits the power to the driving gear 33, and a driving gear shaft 332 of the driving gear 33 is connected with the movable knife 4, so that the movable knife 4 realizes reciprocating paper cutting movement; the driving gear shaft 332 is an eccentric shaft, the eccentric shaft rotates in the through hole 11, the guide shaft is sleeved in the through hole 11, and the guide shaft slides in the through hole 11 to push the movable knife 4 to slide in the housing 1.
Specifically, the mounting manner of the driving assembly 3 and the driving frame 2 may be as follows: the driving rack 2 is provided with a plurality of mounting hole positions, and screws penetrate through the mounting hole positions to be connected with the driving assembly 3, so that the supporting platform is connected with the shell 1.
The mounting mode of the driving component 3 and the driving frame 2 can also be as follows: the driving rack 2 is an integral type formed by stamping a hardware die so as to improve the strength of the rack, the driving rack 2 comprises an installation block and a supporting platform, the installation block and the supporting platform are connected to form the L-shaped driving rack 2, the L-shaped design reinforces the bending strength, and the integral strength of the rack is improved; drive assembly 3 places on supporting platform, and be connected with the installation piece, the installation piece epirelief is equipped with a pair of relative motor support arm 21, motor support arm 21 is bent by the installation piece and is formed, reduce to get the material area of hollowing out with this, increase bulk strength, drive assembly 3 places between a pair of motor support arm 21, and be connected with a pair of motor support arm 21 simultaneously, the motor support arm is equipped with the fixed orifices at least, pass the fixed orifices through the screw in order to be connected motor and drive frame.
Specifically, the driving frame 2 is provided with two bends, and a steering gear mounting arm 211 and a driving gear mounting arm 212 are respectively generated, the steering gear shaft 321 is fixed on the steering gear mounting arm 211, the steering gear shaft 321 is sleeved with the steering gear 32, the driving gear shaft 331 is fixed on the driving gear mounting arm 212, the driving gear shaft 331 is sleeved with the driving gear 33, the steering gear 32 penetrates through the steering gear shaft 321 and is placed on the steering gear mounting arm 211, the driving gear 33 penetrates through the driving gear shaft 331 and is placed on the driving gear mounting arm 212, and the movable knife driving gear shaft 33 is pressed into a corresponding mounting hole of the driving gear 33 in an interference fit manner, so that a whole is formed.
Set up drive frame 2 through the surface at casing 1 at this embodiment technical scheme to place drive assembly 3 in drive frame 2, can realize that drive assembly 3 drives movable sword 4 and relapse the cut paper motion, can make the inner space of paper cutter again reduce, in order to keep on the basis that power lasts the operation, reduce paper cutter thickness, conveniently assemble the paper cutter, the paper cutter of being convenient for realizes the miniaturization.
Further, the transmission assembly comprises a rotating gear 32 and a driving gear 33, the rotating gear 32 is in meshing transmission with the output end of the driving assembly 3, the driving gear 33 is in meshing transmission with the rotating gear 32, a driving gear shaft 332 is arranged on the driving gear 33, and the driving gear shaft 332 penetrates through the through hole 11 to be connected with the movable knife 4.
The driving assembly 3 provides power for the transmission assembly, the driving assembly 3 is a motor, an output shaft of the motor is connected with a worm, the worm is sleeved in the output shaft of the motor, the worm is in interference fit connection with the output shaft of the motor, and the power output by the driving assembly 3 is transmitted to the movable knife 4 through the transmission assembly.
The power transmission of the transmission component is to transmit power by meshing a rotating gear 32 with a driving gear 33, the output end of the driving component 3 is connected with an output gear 31, wherein, the rotating gear 32 is provided with two coaxial gears, the rotating motion of the two coaxial gears is consistent, one coaxial gear is meshed with the output gear 31 at the output end of the driving component 3, the other coaxial gear is meshed with the driving gear 33, so that the power of the driving component 3 is transmitted to the rotating gear 32, the rotating gear 32 is transmitted to the driving gear 33, the driving gear 33 is provided with a driving gear shaft 332, the driving gear shaft 332 passes through a through hole 11 to be sleeved with the shell 1, when the driving gear 33 rotates, the driving gear shaft 332 rotates in the through hole 11, the driving gear shaft 332 is an eccentric shaft, the eccentric shaft moves in the through hole 11, the guide shaft is sleeved in the through hole 11, and the guide, to push the movable knife 4 to slide in the housing 1.
One surface of the driving rack 2 close to the connecting shell 1 is bent to form a rotating gear 32 accommodating cavity and a driving gear 33 accommodating cavity, the rotating gear 32 is placed in the rotating gear 32 accommodating cavity, and the driving gear 33 is placed in the driving gear 33 accommodating cavity.
The steering gear shaft 321 is installed on the driving frame 2, the steering gear installation arm 211 and one surface close to the shell 1 are set as an accommodating cavity of the steering gear 32, and the steering gear 32 is sleeved in the steering gear shaft 321 and placed in the accommodating cavity of the steering gear 32 to ensure that the steering gear 32 cannot fall off. The steering gear shaft 321 extends towards the direction of the shell 1, and the extension of one end of the steering gear shaft 321 is communicated with the steering gear shaft guide hole 114 on the shell frame 11, so that the mounting precision of the steering gear shaft 321 and the shell 1 is improved, and the transverse strength of the steering gear shaft 321 is also improved.
The driving gear shaft 332 is installed on the driving rack 2, the driving gear installation arm 212 and one surface close to the shell 1 are set to be an accommodating cavity of the driving gear 33, the driving gear 33 is sleeved on the driving gear shaft 332 and placed in the accommodating cavity of the driving gear 33, the diameter of the through hole is set to be smaller than the diameter of the annular boss on the driving gear 33, and the driving gear 33 is ensured to be located in the accommodating cavity of the driving gear 33 and not to fall off. In the embodiment, the diameter difference is 1.4mm, and the specific value can be set according to the requirement of a user.
Further, a center shaft 331 is provided at the center of the driving gear 33, the driving gear 33 is mounted on the driving frame 2 through the center shaft 331, and the driving gear shaft 332 is provided at a position offset from the center shaft 331.
The driving gear 33 is further provided with a central shaft 331, the central shaft 331 is located at the center of the driving gear 33 and extends outward, an extension of one end of the central shaft 331 abuts against the driving rack 2, an extension of the other end of the central shaft 331 abuts against the housing 1, and the central shaft 331 is used for fixing the center point of rotation of the driving gear 33 so that the driving gear 33 rotates around the central shaft 331.
Furthermore, a paper cutting opening is formed in the shell 1, the paper cutting opening is located on one side face adjacent to the through hole 11, the movable knife 4 is installed in the shell 1, the cutting edge 42 of the movable knife 4 faces the paper cutting opening, and the driving assembly 3 drives the movable knife 4 to reciprocate in the direction of the paper cutting opening.
The driving gear shaft 332 of the driving assembly 3 passes through the through hole 11 and the driving groove 41, and is connected to the holder 43 of the movable knife 4, the driving gear shaft 332 rotates in the through hole 11, and the driving gear shaft 332 drives the movable knife 4 to reciprocate in the direction of the cut opening when moving in the through hole 11.
Furthermore, at least two guide shafts are arranged on the movable knife 4, guide grooves 12 corresponding to the guide shafts are arranged on the shell 1, the guide grooves 12 extend towards the direction of the paper cutting opening, the guide shafts are sleeved in the guide grooves 12, and the guide shafts slide in the guide grooves 12.
In order to facilitate the movable knife 4 to slide in the shell 1, at least two guide shafts are arranged on the movable knife 4, a guide groove 12 opposite to the guide shafts is formed in one side inside the shell 1, the guide groove 12 extends towards the sliding direction of the movable knife 4, and when the movable knife 4 is driven by the driving assembly 3, the guide shafts slide in the guide grooves 12 so as to realize that the movable knife 4 slides in the shell 1; in order to enhance the stability of the movable blade 4 connected to the housing 1, at least three guide shafts are provided to maintain the stability of the movable blade 4 and provide a guide function for the movement of the movable blade 4.
Or, the movable knife 4 is provided with at least two guide shafts, the inside of the housing 1 is convexly provided with a guide recess, the guide recess extends towards the sliding direction of the movable knife 4, and when the driving component 3 drives the movable knife 4, the guide shafts slide in the guide recess, so that the movable knife 4 slides in the housing 1.
At least two convex blocks 13 are convexly arranged at the contact part of the inner wall of the shell 1 and the movable knife 4, the shape of each convex block 13 can be a long strip shape or a round shape, and the specific shape can be set according to the requirements of a user, wherein in the embodiment, two long strip-shaped convex blocks 13 and one round convex block 13 are arranged inside the shell 1 and are used for supporting and contacting the surface of the movable knife 4, the friction force of the movable knife 4 in reciprocating motion is effectively reduced, the motion stability of the movable knife 4 is provided, and the stability of the paper cutter during paper cutting is enhanced.
The knife back 44 of the movable knife 4 adopts a shape that the bevel edge is circumscribed with the circular arc, so that the problem that the internal stress of a complex structure is unevenly distributed during heat treatment is solved, the condition that the plane of the movable knife 4 is badly deformed is avoided, meanwhile, the weight of the movable knife 4 can be reduced, the load on the driving assembly 3 is reduced, the stability of cut paper is enhanced, and the stability of the cut paper is enhanced; two feed guide arcs are set at the front end of the movable knife 4, so that the movable knife 4 and the fixed knife are smoothly lapped before paper cutting, the problem that the blade is broken due to direct impact of the cutting edge of the movable knife 4 and the cutting edge of the fixed knife is avoided, the load on the driving assembly 3 is reduced, and the stability of the cut paper is enhanced.
Further, the movable blade 4 is provided with a driving groove 41 perpendicular to the moving direction of the movable blade 4, the through hole 11 corresponds to the driving groove 41, the driving gear shaft 332 penetrates through the through hole 11 and the driving groove 41, and the driving gear 33 drives the movable blade 4 to move.
The driving groove 41 is formed in the handle 43 of the movable knife 4, the driving gear shaft 332 of the driving assembly 3 sequentially penetrates through the through hole 11 and the driving groove 41 of the handle 43 of the movable knife 4, the driving gear shaft 332 moves in the through hole 11, and the driving gear shaft 332 also moves in the driving groove 41, so that the movable knife 4 is driven to move back and forth in the cutting direction in the moving process, the through hole 11 is used for limiting the movement track of the driving gear shaft 332, and the driving groove 41 is used for introducing the power of the driving assembly 3, wherein the forming direction of the driving groove 41 deviates from the moving direction of the movable knife 4, in the embodiment, the driving groove 41 is long-strip-shaped, and the through hole 11 is circular.
Furthermore, the movable blade 4 is provided with an elastic member 5, the elastic member 5 includes a fixed end 51 and an elastic end 52, the fixed end 51 is fixed on an inner wall of the housing 1, and the elastic end 52 is pressed against a side of the movable blade 4 away from the inner wall of the fixed connection, so that the movable blade 4 is located between the elastic end 52 and the fixed end 51.
The elastic member 5 is a stainless steel part formed by die stamping, and the surface of the elastic member 5 is provided with an H-shaped elastic reinforcing rib, specifically, the elastic member 5 comprises a fixed end 51 and an elastic end 52, the fixed end 51 is fixed with the inner wall of the shell frame of the shell 1 through a screw, so that the movable knife 4 is pressed between the elastic member 5 and the shell 1, in the reciprocating process of the movable knife 4, friction force is generated between the elastic member 5 and the movable knife 4, the elastic member 5 is stretched by the friction force to generate elastic deformation, reaction elastic force generated by the elastic member 5 is pressed on the movable knife 4, and further pressure on the movable knife 4 is generated, so that the elastic member 5 provides a holding force for the whole movable knife 4 in the reciprocating process of the movable knife 4, so that the reciprocating motion of the movable knife 4 is smoother, and the movable knife 4 is matched with the fixed knife to complete a paper cutting function.
The spring 5 has an H-shaped elastic rib on its surface, which is advantageous for improving the overall strength of the spring 5, and for improving the rebound force and thus the holding force required by the movable blade 4 during cutting.
Further, the elastic end 52 includes a first bend and a second bend, and the first bend is opposite to the second bend.
The first bending is far away from the fixed end 51, the second bending is close to the fixed end 51, the movable knife 4 is elastically pressed through the first bending and the second bending, reaction elastic pressure is provided for the movable knife 4, and therefore the required cut paper retaining force in the reciprocating paper cutting process of the movable knife 4 is ensured.
The movable knife 4 is elastically pressed by the first bending and the second bending to provide elastic pressure for the movable knife 4, so that the movable knife 4 can move more smoothly in the reciprocating motion. Preferably, the movable knife 4 is provided with two first bends, the two first bends are adjacent to each other, and the two first bends and the second bends cooperate to press the movable knife 4 simultaneously, so that the pressing force is increased on the outer surface of the movable knife 4, the holding force of the movable knife 4 is increased, the movable knife 4 is prevented from being tilted upwards, the guide shaft is prevented from falling off from the guide groove, and the smoothness of the linear motion of the movable knife 4 is ensured.
Further, the driving frame 2 is convexly provided with a pair of motor supporting arms 21, the driving assembly 3 is located between the pair of motor supporting arms 21, and the motor supporting arms 21 are connected with the outer surface of the driving assembly 3.
The driving component 3 and the mounting block are mounted in a manner that a pair of opposite motor supporting arms 21 are arranged on the mounting block in a protruding mode, the driving component 3 is placed between the pair of motor supporting arms 21 and is connected with the pair of motor supporting arms 21 at the same time, the pair of motor supporting arms 21 are bent from the mounting block by the motor supporting arms 21, and the motor supporting arms 21 are further provided with connecting holes which are connected with screws in a screwing mode through the connecting holes so that the driving component 3 is connected with the mounting block.
The driving rack 2 is provided with two bends, and respectively generates a steering gear mounting arm 211 and a driving gear mounting arm 212, a steering gear shaft 321 is fixed on the steering gear mounting arm 211, a steering gear 32 is sleeved on the steering gear shaft 321, a driving gear shaft 331 is fixed on the driving gear mounting arm 212, a driving gear 33 is sleeved on the driving gear shaft 331, the steering gear 32 penetrates through the steering gear shaft 321 and is placed on the steering gear mounting arm 211, the driving gear 33 penetrates through the driving gear shaft 331 and is placed on the driving gear mounting arm 212, and the movable knife driving gear shaft 33 is pressed into a corresponding mounting hole of the driving gear 33 in an interference fit manner, so that a whole is formed.
Further, the paper cutter still includes micro-gap switch 6, micro-gap switch 6 with drive assembly 3 electric connection, micro-gap switch 6 is installed drive frame 2 is last, the protruding round platform that is equipped with of drive gear 33's terminal surface, the protruding shifting block 33 that is equipped with of circumference of round platform, shifting block 33 follows drive gear 33 when rotating with micro-gap switch 6's poker rod butt.
The paper cutter further comprises a microswitch 6, the microswitch 6 is electrically connected with the motor through a LeadWire wire, a mounting hole is formed in a microswitch supporting boss of the driving rack 2, and the microswitch 6 is mounted on the microswitch supporting boss of the driving rack 2 through a screw. The micro-switch supporting boss is made of the driving frame 2 by adopting a stretching process.
One side end face of the driving gear 33 is provided with an involute boss, and the involute boss is contacted and separated with the poke rod of the microswitch step by step when the driving gear 33 rotates, so that the poke rod is pressed and released correspondingly to realize the on and off functions of the microswitch 6.
In the embodiment, four connecting wires are set for the leader wire, wherein a positive wire is connected with a positive electrode (marked with a red point) joint of the motor, a negative wire is connected with a negative electrode of the motor, and the motor rotates forwards after the current is switched on; the other two wires are connected with the joints of the micro switch 6.
The positive/negative pole is to exchanging the wiring in the three-phase power supply inlet wire of motor, can realize the reversal of motor. The microswitch 6 is installed, and the action of pressing and releasing the poke rod of the microswitch 6 can realize the function of switching on and off the microswitch 6. The control board receives an on/off signal from the micro switch 6, and controls the motor to stop.
The control substrate provides a start signal, after the motor is started and operated in the forward direction, the worm of the driving assembly 3 rotates counterclockwise along the axis direction of the motor shaft, the steering gear 32 is driven to rotate clockwise along the axial direction of the steering gear shaft 321, and the steering gear 32 drives the driving gear 33 to rotate clockwise along the axial direction of the driving gear shaft 331.
When the driving gear 33 is at the initial position, the toggle rod of the micro switch 6 is in a release state. When the driving gear 33 rotates, the involute boss on the driving gear 33 starts to contact with the poke rod of the microswitch 6, press the poke rod and separate from the poke rod; when the driving gear 33 rotates 360 degrees, the poke rod of the micro switch 6 is in a release state again, and the micro switch 6 completes a complete on/off signal period. Accordingly, the movable blade 4 also completes one complete cutting movement cycle, returning to the home position. After the control substrate receives the on/off periodic signal of the microswitch 6, the control substrate gives a power-off signal to the motor, and the motor stops rotating. The above is a work flow of the forward driving of the driving assembly 3.
The reverse rotation driving working process of the driving assembly 3 is opposite to the forward driving process, and the positive and negative electrode wires in the three-phase power supply inlet wire of the motor are reversely connected, so that the reverse rotation of the motor is realized. The control substrate provides a start signal, after the motor 311 is started and operated in a reverse direction, the worm of the driving assembly 3 rotates clockwise along the axis direction of the motor shaft, the steering gear 32 is driven to rotate counterclockwise along the axial direction of the steering gear shaft 321, and the steering gear 32 drives the driving gear 33 to rotate counterclockwise along the axial direction of the driving gear shaft 331.
When the driving gear 33 is at the initial position, the toggle rod of the micro switch 6 is in a release state. When the driving gear 33 rotates, the involute boss on the driving gear 33 starts to contact with, press and separate from the poke rod of the microswitch 6, when the driving gear 33 rotates 360 degrees, the poke rod of the microswitch 6 is in a release state again, and the microswitch 6 completes a complete on/off signal period. Accordingly, the movable blade 4 also completes one complete cutting movement cycle, returning to the home position. After the control substrate receives the on/off periodic signal of the microswitch 6, the control substrate gives a power-off signal to the motor, and the motor stops rotating. The above is the working flow of the reverse driving of the driving assembly 3. Poke rod
The application also provides a printer, the printer comprises a body, a fixed knife and the paper cutter, the specific structure of the paper cutter refers to the above embodiments, and all technical schemes of all the above embodiments are adopted in the paper cutter, so that all beneficial effects brought by the technical schemes of the above embodiments are at least achieved, and the description is omitted. The paper cutter with the stationary knife is installed in the printer, just the cutting edge of the movable sword of paper cutter with the corresponding setting of cutting edge of stationary knife, movable sword and stationary knife cooperation accomplish paper cutting work.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (10)
1. A paper cutter, characterized in that the paper cutter comprises:
the shell is provided with a through hole communicated with a cavity in the shell;
the movable knife is arranged in the cavity;
a drive chassis mounted outside the housing;
the driving assembly is arranged on the driving rack and connected with a transmission assembly, and the transmission assembly penetrates through the through hole to be connected with the movable knife.
2. The paper cutter of claim 1, wherein the transmission assembly includes a rotary gear and a driving gear, the rotary gear is in meshing transmission with the output end of the driving assembly, the driving gear is in meshing transmission with the rotary gear, the driving gear is provided with a driving gear shaft, and the driving gear shaft passes through the through hole and is connected with the movable knife.
3. The paper cutter according to claim 2, wherein the drive gear is provided with a central shaft at its center, the drive gear being mounted on the drive frame via the central shaft, the drive gear shaft being provided at a position offset from the central shaft.
4. The paper cutter according to claim 3, wherein the housing is provided with a paper cutting opening, the paper cutting opening is located on one side surface adjacent to the through hole, the movable knife is mounted in the housing, a cutting edge of the movable knife faces the paper cutting opening, and the driving assembly drives the movable knife to reciprocate in the direction of the paper cutting opening.
5. The paper cutter according to claim 4 wherein the movable blade is provided with at least two guide shafts, the housing is provided with guide grooves corresponding to the guide shafts, the guide grooves extend in the direction of the paper cutting opening, the guide shafts are nested in the guide grooves, and the guide shafts slide in the guide grooves.
6. The paper cutter according to claim 5, wherein the movable blade is provided with a driving groove perpendicular to the moving direction of the movable blade, the through hole corresponds to the driving groove, the driving gear shaft passes through the through hole and the driving groove, and the driving gear drives the movable blade to move.
7. The paper cutter according to claim 1, wherein the movable blade is provided with an elastic member, the elastic member includes a fixed end and an elastic end, the fixed end is fixed on an inner wall of the housing, and the elastic end is pressed against a side of the movable blade facing away from the inner wall of the fixed connection, so that the movable blade is located between the elastic end and the fixed end.
8. The paper cutter of claim 1 wherein the drive carriage is embossed with a pair of motor support arms, the drive assembly being positioned between the pair of motor support arms, and the motor support arms being attached to an outer surface of the drive assembly.
9. The paper cutter according to claim 2, wherein the paper cutter further comprises a micro switch electrically connected to the driving assembly, the micro switch is mounted on the driving frame, a circular truncated cone is protruded from an end surface of the driving gear, a shifting block is protruded in a circumferential direction of the circular truncated cone, and the shifting block abuts against a shifting rod of the micro switch when rotating along with the driving gear.
10. A printer, characterized in that the printer comprises a body, a stationary knife and the paper cutter according to claims 1-9, the paper cutter and the stationary knife are installed in the printer, and the cutting edge of the movable knife of the paper cutter is arranged corresponding to the cutting edge of the stationary knife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921399109.1U CN210650911U (en) | 2019-08-26 | 2019-08-26 | Paper cutter and printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921399109.1U CN210650911U (en) | 2019-08-26 | 2019-08-26 | Paper cutter and printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210650911U true CN210650911U (en) | 2020-06-02 |
Family
ID=70846326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921399109.1U Expired - Fee Related CN210650911U (en) | 2019-08-26 | 2019-08-26 | Paper cutter and printer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210650911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110509337A (en) * | 2019-08-26 | 2019-11-29 | 孙旭东 | Paper cutter and printer |
-
2019
- 2019-08-26 CN CN201921399109.1U patent/CN210650911U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110509337A (en) * | 2019-08-26 | 2019-11-29 | 孙旭东 | Paper cutter and printer |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |